CN105588356B - A kind of refrigeration system and its control method - Google Patents
A kind of refrigeration system and its control method Download PDFInfo
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- CN105588356B CN105588356B CN201510145293.7A CN201510145293A CN105588356B CN 105588356 B CN105588356 B CN 105588356B CN 201510145293 A CN201510145293 A CN 201510145293A CN 105588356 B CN105588356 B CN 105588356B
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Abstract
The embodiment of the present invention provides a kind of refrigeration system and its control method, belongs to air-conditioning technical field, and for solving to adjust the technical issues of temperature and humidity is of high cost, installation space is big respectively using two sets of air-conditioning systems, which includes：Compressor, condenser, first throttle element, the second restricting element, gas-liquid separate component, the first vaporising device and the second vaporising device；The liquid outlet of gas-liquid separate component is communicated with the import of the first vaporising device and the import of the second vaporising device；The outlet of first vaporising device is communicated with the first port of the second restricting element, and the outlet of the second vaporising device is communicated with the second port of the second restricting element, and the third port of the second restricting element is communicated with the low pressure port of compressor.The embodiment of the present invention is used for the manufacture of air-conditioning.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to a kind of refrigeration systems and its control method.
Background technology
With the continuous development of air conditioner industry, air-conditioning has become very universal in life, and user is to the comfort level of air-conditioning
Also there are increasingly higher demands, not only require indoor temperature pleasant but also require indoor humidity also comfortable, so air-conditioning
It not only needs to adjust indoor temperature and also needs to adjust indoor humidity.The controlling party that usual air-conditioning is coupled by temperature and humidity
Method realizes while humidity and temperature is adjusted, i.e., adjusts humidity by the evaporating temperature for the evaporator for adjusting air-conditioning.
However when temperature is higher indoors, to ensure that indoor humidity load is adjusted to required state, the evaporating temperature of A/C evaporator must
Must be sufficiently low, the heat transfer temperature difference of air and the refrigerant in A/C evaporator is larger, leads to the irreversible loss of air-conditioning to increase, institute
It is relatively low with the overall efficiency of such air-conditioning, and temperature and humidity cannot be carried out separately adjustable.
In view of the above-mentioned problems, temperature and humidity is adjusted respectively using two sets of air-conditioning systems in the prior art, so as to fulfill
To the separately adjustable of temperature and humidity, but adjust using two sets of air-conditioning systems that temperature and humidity is of high cost, installation space is big respectively.
Invention content
The embodiment of the present invention provides a kind of refrigeration system and its control method, for solving to use two sets in the prior art
Air-conditioning system adjusts the technical issues of temperature and humidity is of high cost, installation space is big respectively.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, a kind of refrigeration system is provided, including：Compressor, condenser, first throttle element, the second throttling member
Part, gas-liquid separate component, the first vaporising device and the second vaporising device；
The condensed device of high-pressure mouth of compressor is communicated with the first port of first throttle element, and the second of first throttle element
Port is communicated with the low pressure port of compressor, and the third port of first throttle element is communicated with the import of gas-liquid separate component, gas-liquid
The gas outlet of separating component is communicated with the gas supplementing opening of compressor, the import of the liquid outlet of gas-liquid separate component and the first vaporising device
It communicates, the import of the liquid outlet of gas-liquid separate component also with the second vaporising device communicates；The outlet of first vaporising device and second
The first port of restricting element communicates, and the outlet of the second vaporising device is communicated with the second port of the second restricting element, the second section
The third port of fluid element is communicated with the low pressure port of compressor.
In refrigeration system provided in an embodiment of the present invention, the import of the liquid outlet of gas-liquid separate component and the first vaporising device
Import with the second vaporising device communicates；The outlet of first vaporising device is communicated with the first port of the second restricting element, and second
The outlet of vaporising device is communicated with the second port of the second restricting element, the third port of the second restricting element and compressor it is low
Pressure mouth communicates；That is the first vaporising device and the second vaporising device are in parallel in refrigeration systems, it is possible to independent to be evaporated to first
Device and the second vaporising device are controlled, it is achieved thereby that the separately adjustable of humidity and temperature, compared with the prior art in
The temperature and humidity embodiment of the present invention is adjusted only with set of system respectively using two sets of air-conditioning systems, it is possible to be reduced into
Sheet and installation space.
Second aspect provides a kind of control method of refrigeration system, and applied to controller, controller is contained in refrigeration system
System, for controlling refrigeration system, method includes：
When refrigeration system is carried out at the same time adjusting to temperature and humidity, controller controls the evaporating temperature of the first vaporising device
For the first temperature, the evaporating temperature of the second vaporising device of control is second temperature；
When temperature is adjusted in refrigeration system, it is the first temperature that controller, which controls the evaporating temperature of the first vaporising device,
Degree, the evaporating temperature of the second vaporising device of control is for the first temperature or without evaporation；
When humidity is adjusted in refrigeration system, it is second temperature that controller, which controls the evaporating temperature of the first vaporising device,
Or without evaporation, the evaporating temperature of the second vaporising device of control is second temperature；
Wherein, the first temperature is higher than second temperature.
The control method of refrigeration system provided in an embodiment of the present invention, when being carried out at the same time adjusting to temperature and humidity, control
The evaporating temperature for making the first vaporising device is the first temperature, and the evaporating temperature of the second vaporising device of control is second temperature, right
When temperature is adjusted, the evaporating temperature of the first vaporising device of control is the first temperature, controls the evaporation temperature of the second vaporising device
It spends for the first temperature or without evaporation, when humidity is adjusted, the evaporating temperature of the first vaporising device of control is second
Temperature or without evaporation, control the second vaporising device evaporating temperature be second temperature；It is so provided in an embodiment of the present invention
The control method of refrigeration system can at different temperature be steamed with the first vaporising device of independent control, the second vaporising device
Hair, and then evaporating temperature higher vaporising device may be used, temperature is adjusted, it is filled using the relatively low evaporation of evaporating temperature
It puts and humidity is adjusted, it is achieved thereby that the separately adjustable of humidity and temperature, it is middle using two sets skies compared with the prior art
Adjusting system adjusts the temperature and humidity embodiment of the present invention only with a set of refrigeration system respectively, it is possible to reduce cost and peace
Fill space.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of refrigeration system schematic diagram provided in an embodiment of the present invention；
Fig. 2 is another refrigeration system schematic diagram provided in an embodiment of the present invention；
Fig. 3 is another refrigeration system schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the step flow chart of the control method of refrigeration system provided in an embodiment of the present invention；
Fig. 5 is the pressure-enthalpy chart of refrigeration system provided in an embodiment of the present invention；
Fig. 6 is that the position of each sampled point in refrigeration systems shows in pressure-enthalpy chart shown in Fig. 3 provided in an embodiment of the present invention
It is intended to.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
It should be noted that the printed words such as " first ", " second " in the application be used for the purpose of it is basic to function and effect
Identical identical entry or similar item distinguish, and the printed words such as " first ", " second " are not to quantity and execution order progress
It limits.
With reference to shown in Fig. 1, the embodiment of the present invention provides a kind of refrigeration system, which includes：Compressor 1, condensation
Device 2, first throttle element 3, the second restricting element 4, gas-liquid separate component 5, the first vaporising device 6 and the second vaporising device 7；
The condensed device 2 of high-pressure mouth of compressor 1 is communicated with the first port of first throttle element 3, first throttle element 3
Second port is communicated with the low pressure port of compressor 1, the third port of first throttle element 3 and the import phase of gas-liquid separate component 5
Logical, the gas outlet of gas-liquid separate component 5 is communicated with the gas supplementing opening of compressor 1, the liquid outlet of gas-liquid separate component 5 and the first evaporation
The import of device 6 communicates, and the import of the liquid outlet of gas-liquid separate component 5 also with the second vaporising device 7 communicates；First vaporising device
6 outlet is communicated with the first port of the second restricting element 4, the outlet of the second vaporising device 7 and the second of the second restricting element 4
Port communicates, and the third port of the second restricting element 4 is communicated with the low pressure port of compressor 1.
In refrigeration system provided in an embodiment of the present invention, the import of the liquid outlet of gas-liquid separate component and the first vaporising device
Import with the second vaporising device communicates；The outlet of first vaporising device is communicated with the first port of the second restricting element, and second
The outlet of vaporising device is communicated with the second port of the second restricting element, the third port of the second restricting element and compressor it is low
Pressure mouth communicates；That is the first vaporising device and the second vaporising device are in parallel in refrigeration systems, it is possible to individually be evaporated to first
Device and the second vaporising device are controlled, it is achieved thereby that the separately adjustable of humidity and temperature, compared with the prior art in
The temperature and humidity embodiment of the present invention is adjusted only with a set of refrigeration system respectively using two sets of air-conditioning systems, it is possible to be subtracted
Small cost and installation space.
Illustratively, with reference to shown in Fig. 2, the first vaporising device 6 includes：First solenoid valve 61, the first evaporator 62 and
One wind turbine 63, the second vaporising device 7 include：Second solenoid valve 71, the second evaporator 72 and the second wind turbine 73, wherein, the first wind
Machine 63 is used to provide heat exchange air-flow to the first evaporator 62, and the second wind turbine 73 is used to provide heat exchange air-flow to the second evaporator 72；
The first port of first solenoid valve 61 is communicated with the liquid outlet of gas-liquid separate component 5, and the second of the first solenoid valve 61
Port is communicated with the first port of the first evaporator 62, the second port of the first evaporator 62 and the first of the second restricting element 4
Port communicates；
The first port of second solenoid valve 71 is communicated with the liquid outlet of gas-liquid separate component 5, and the second of second solenoid valve 71
Port is communicated with the first port of the second evaporator 72, the second port of the second evaporator 72 and the second of the second restricting element 4
Port communicates.
Further, with reference to shown in Fig. 3, the first vaporising device 6 further includes：Third restricting element 64, the second vaporising device 7
It further includes：4th restricting element 74；
The first port of third restricting element 64 is communicated with the second port of the first solenoid valve 61, third restricting element 64
Second port is communicated with the first port of the first evaporator 62；
The first port of 4th restricting element 74 is communicated with the second port of second solenoid valve 71, the 4th restricting element 74
Second port is communicated with the first port of the second evaporator 72.
Increase third restricting element in above-described embodiment between the first solenoid valve and the first evaporator, in second solenoid valve and
Increase by the 4th restricting element between second evaporator, so as to fulfill the control to cold medium flux in the first evaporator, the second evaporator.
It elaborates referring to Fig. 3 to the cyclic process of the refrigerant in refrigeration system of the embodiment of the present invention, wherein, figure
Arrow represents the flow direction of refrigerant in refrigeration system in 3.
The cyclic process of refrigerant is as follows in refrigeration system：After refrigerant is by the high-pressure mouth outflow of compressor 1, condenser 2 is flowed through
Afterwards, first throttle element 3 is entered by the first port of first throttle element 3, into first throttle element 3 after with by first throttle
The refrigerant mixing that the second port of element 3 enters, by the third port discharge first throttle element 3 of first throttle element 3, discharge
Gas-liquid separate component 5 is entered by the import of gas-liquid separate component 5 after first throttle element 3, refrigerant in gas-liquid separate component into
Row gas-liquid separation, gas coolant enter compressor 1 by the gas outlet of gas-liquid separate component 5, the gas supplementing opening of compressor 1；Liquid
Refrigerant after the liquid outlet discharge of gas-liquid separate component 5 by being divided into two-way, and the first via is by the first solenoid valve 61, third restricting element
64 and first enter the second restricting element 4 after evaporator 62 by the first port of the second restricting element 4, and the second tunnel is by the second electricity
Second throttling member is entered by the second port of the second restricting element 4 after magnet valve 71, the 4th restricting element 74 and the second evaporator 72
Part 4, the first port and second port of two the second restricting elements 4 of routing enter the two-way refrigerant of the second restricting element in the second section
Compressor 1 is entered by the low pressure port of compressor 1 after being mixed in fluid element 4, after compressor compresses refrigerant, by compressor
High-pressure mouth is discharged, and then refrigerant starts the cycle of next round in refrigeration systems.
Illustratively, first throttle element is injector；The first port of first throttle element is the entrance port of injector,
The second port of first throttle element is the ejecting port of injector, and the third port of first throttle element is the outgoing of injector
Mouthful.
Due to injector entrance port enter refrigerant as main incident flow the acceleration and pressure decrease in injector, can be with injection pressure
The low pressure refrigerant of contracting machine sucking enters injector from the ejecting port of injector, so can using injector as first throttle element
To improve the superfeed pressure of compressor, compressor air suction specific volume reduces, and inspiratory capacity increases, and then can increase refrigeration system
Refrigerating capacity
Illustratively, the second restricting element is injector；The first port of second restricting element is the entrance port of injector,
The second port of second restricting element is the ejecting port of injector, and the third port of the second restricting element is the outgoing of injector
Mouthful.
The refrigerant entered due to the entrance port of injector acceleration and pressure decrease in injector as main incident flow, can be with injection the
The outlet pressure of refrigerant in two evaporators, it is possible to the pressure of refrigerant at compressor low pressure port is improved, so using injector
The leakage loss of compressor refrigerant can be reduced as the second restricting element, and then reduce the power consumption of compressor, improve compressor
The pressure of refrigerant can also reduce blowdown pipe cold medium flux at low pressure port, reduce tonifying Qi pipe pressure, in addition, so using injector
The expansion work of the high pressure refrigerant flowed out in the first evaporator can also be recycled as the second restricting element, and then it is low to reduce compressor
Press the disturbance of refrigerant at mouth.
Illustratively, the gas-liquid separate component in above-described embodiment can be flash evaporation.
Illustratively, the first evaporator and the second evaporator can be air-cooled evaporator, and condenser can be air-cooled
Condenser or water cooled condenser.
One embodiment of the invention provides a kind of control method of refrigeration system, and applied to controller, controller is contained in system
Cooling system, for controlling refrigeration system, with reference to shown in Fig. 4, method includes：
S401, when refrigeration system is carried out at the same time adjusting to temperature and humidity, controller control the first vaporising device steaming
Hair temperature is the first temperature, and the evaporating temperature of the second vaporising device of control is second temperature；
S402, when temperature is adjusted in refrigeration system, it is that controller, which controls the evaporating temperature of the first vaporising device,
One temperature, the evaporating temperature of the second vaporising device of control is for the first temperature or without evaporation；
S403, when humidity is adjusted in refrigeration system, it is that controller, which controls the evaporating temperature of the first vaporising device,
Two temperature or without evaporation, control the second vaporising device evaporating temperature be second temperature；
Wherein, the first temperature is higher than second temperature.
It should be noted that above-mentioned first temperature and second temperature are not limited to some actual temp, evaporator is
Refrigerant becomes gaseous state from liquid when one temperature is evaporated, and the heat in air is absorbed, but evaporating temperature is relatively high, in air
Vapor can not condense, so can only achieve adjust temperature purpose and cannot achieve the purpose that dehumidifying, evaporator is second
Refrigerant is also to become gaseous state from liquid when temperature is evaporated, and the heat in air is absorbed, but evaporating temperature is relatively low, in air
Vapor can condense, it is possible to achieve the purpose that dehumidifying, and since evaporator evaporates temperature when second temperature is evaporated
Spend relatively low, refrigerant is larger with Air Temperature Difference, so the irreversible loss of air-conditioning increases, air-conditioning overall performance is poor.It is so above-mentioned
The first temperature and second temperature in embodiment are not limited to some specific temperature, and the first temperature is adjusted to suitable and exchanging air
Subject to stream is exchanged heat, second temperature is adjusted to make subject to Water vapor condensation.
The control method of refrigeration system provided in an embodiment of the present invention, when being carried out at the same time adjusting to temperature and humidity, control
The evaporating temperature for making the first vaporising device is the first temperature, and the evaporating temperature of the second vaporising device of control is second temperature, right
When temperature is adjusted, the evaporating temperature of the first vaporising device of control is the first temperature, controls the evaporation temperature of the second vaporising device
It spends for the first temperature or without evaporation, when humidity is adjusted, the evaporating temperature of the first vaporising device of control is second
Temperature or without evaporation, control the second vaporising device evaporating temperature be second temperature；Refrigeration provided in an embodiment of the present invention
The control method of system controls the first vaporising device, the second vaporising device to be evaporated at different temperature, it is achieved thereby that
It is middle compared with the prior art to adjust temperature and humidity sheet respectively using two sets of air-conditioning systems to the separately adjustable of humidity and temperature
Inventive embodiments are only with a set of refrigeration system, it is possible to reduce cost and installation space.
Illustratively, with reference to shown in Fig. 2, the first vaporising device includes：First solenoid valve, the first evaporator and the first wind
Machine；Second vaporising device includes：Second solenoid valve, the second evaporator and the second wind turbine, in step S401, controller control first
The evaporating temperature of vaporising device is the first temperature, and the evaporating temperature of the second vaporising device of control is second temperature, is specifically included：
S401a, controller control the first magnet valve to open, by the heat exchange air quantity for controlling first the first evaporator of air-blower control
For the first air quantity, the evaporating temperature for making the first vaporising device is the first temperature；
S401b, controller control the second magnet valve to open, by the heat exchange air quantity for controlling second the second evaporator of air-blower control
For the second air quantity, the evaporating temperature for making the second vaporising device is second temperature；
Wherein, the first air quantity is more than the second air quantity.
The first air quantity and the second air quantity in above-described embodiment are not limited to some specific air quantity, and the first air quantity is with can be with
Make the evaporating temperature of corresponding evaporator for subject to the first temperature, the second air quantity is can make the evaporating temperature of corresponding evaporator as the
Subject to two temperature.
In above-described embodiment, controller is by controlling the first wind turbine and the second wind turbine to make the heat exchange air quantity of the first evaporator big
In the heat exchange air quantity of the second evaporator, so as to make the evaporating temperature of the first vaporising device for the first temperature, the second vaporising device
Evaporating temperature is second temperature, i.e., is realized by adjusting the heat exchange air quantity of evaporator to the first vaporising device and the second vaporising device
The control of evaporating temperature.
Further, with reference to shown in Fig. 3, the first vaporising device further includes third restricting element.Second vaporising device also wraps
The 4th restricting element is included, this method further includes：
Controller is first flow by the way that third restricting element is controlled to control the cold medium flux in the first evaporator,
Controller is second flow by the way that the 4th restricting element is controlled to control the cold medium flux in the second evaporator,
Wherein, first flow is more than second flow.
Ibid, the first flow in above-described embodiment and second flow are also not limited to some specific flow, first-class
The evaporating temperature corresponding evaporator can be made in the first air quantity is measured as the first temperature, second flow is in the second air quantity
When can make the evaporating temperature of corresponding evaporator for subject to second temperature.
In above-described embodiment, controller is further by controlling third restricting element and the 4th restricting element to make the first evaporation
Cold medium flux in device is more than the cold medium flux in the second evaporator, so as to make the evaporating temperature of the first vaporising device for the first temperature
Degree, the evaporating temperature of the second vaporising device are second temperature, i.e., cold in the heat exchange air quantity and evaporator by adjusting evaporator
Matchmaker's flow realizes the control to the first vaporising device and the second vaporising device evaporating temperature.
Illustratively, with reference to shown in Fig. 2, the first vaporising device includes：First solenoid valve, the first evaporator and the first wind
Machine；Second vaporising device includes：Second solenoid valve, the second evaporator and the second wind turbine.In step S402, controller control first
The evaporating temperature of vaporising device is the first temperature, and the evaporating temperature of the second vaporising device of control is for the first temperature or without steaming
Hair, specifically includes：
S402a, controller control the first solenoid valve and second solenoid valve to open, by the way that the first air-blower control first is controlled to steam
The heat exchange air quantity for sending out device is the first air quantity, is the first air quantity by the heat exchange air quantity for controlling second the second evaporator of air-blower control,
The evaporating temperature for making the first vaporising device is the first temperature, and the evaporating temperature of the second vaporising device is the first temperature；
Or, S402b, the first solenoid valve of control are opened, second solenoid valve is closed, by the way that the first air-blower control first is controlled to steam
The heat exchange air quantity of device is sent out as the first air quantity, the evaporating temperature for making the first vaporising device is the first temperature, the second vaporising device not into
Row evaporation.
Specifically, when the load that refrigeration system adjusts temperature is larger, controller controls the first solenoid valve and the second electricity
Magnet valve is opened, and is the first temperature by controlling the evaporating temperature of first the first evaporator of air-blower control, and control second is evaporated
The evaporating temperature of device is the first temperature；When the load that air-conditioning adjusts temperature is smaller, controller the first solenoid valve of control opening,
Second solenoid valve is closed, and by the heat exchange air quantity of first the first evaporator of air-blower control, makes the evaporation of the first vaporising device
Temperature is the first temperature, since second solenoid valve is closed, so the second evaporator is without evaporation.
Further, with reference to shown in Fig. 3, the first vaporising device further includes third restricting element.Second vaporising device also wraps
The 4th restricting element is included, this method further includes：
When controller controls the first solenoid valve to open, controller is by controlling third restricting element to control the first evaporator
In cold medium flux be first flow；
When controller control second solenoid valve is opened, controller is by controlling the 4th restricting element to control the second evaporator
In cold medium flux be first flow.
In above-described embodiment, when the first solenoid valve is opened, controller makes the first evaporation by controlling third restricting element
Cold medium flux in device is first flow, and the evaporating temperature of the first vaporising device is the first temperature；When the first solenoid valve and second
When solenoid valve is opened, controller control third restricting element and the 4th restricting element make the first evaporator and the second evaporator
In cold medium flux be first flow, the evaporating temperature of the first vaporising device and the second vaporising device is the first temperature, i.e.,
Cold medium flux is realized to the first vaporising device and the second vaporising device in heat exchange air quantity and evaporator by adjusting evaporator
Evaporating temperature control.
Illustratively, with reference to shown in Fig. 2, the first vaporising device includes：First solenoid valve, the first evaporator and the first wind
Machine；Second vaporising device includes：Second solenoid valve, the second evaporator and the second wind turbine.In step S403, controller control first
For the evaporating temperature of vaporising device for second temperature or without evaporation, the evaporating temperature of the second vaporising device of control is the second temperature
Degree, specifically includes：
S403a, controller control the first solenoid valve and second solenoid valve to open, by the way that the first air-blower control first is controlled to steam
The heat exchange air quantity for sending out device is the second air quantity, is the second air quantity by the heat exchange air quantity for controlling second the second evaporator of air-blower control,
The evaporating temperature for making the first vaporising device is second temperature, and the evaporating temperature of the second vaporising device is second temperature；
Or, S403b, the first solenoid valve of control are closed, second solenoid valve is opened, by the way that the second air-blower control second is controlled to steam
The heat exchange air quantity of device is sent out as the second air quantity, makes the first vaporising device without evaporation, the evaporating temperature of the second vaporising device is the
Two temperature.
Specifically, when refrigeration system is larger to the load of humidity regulation, controller controls the first solenoid valve and the second electricity
Magnet valve is opened, and the heat exchange air quantity by controlling first the first evaporator of air-blower control, makes the evaporation temperature of the first vaporising device
It spends for second temperature, controls the heat exchange air quantity of the second evaporator, the evaporating temperature for making the second vaporising device is second temperature；Work as sky
When adjusting smaller to the load of humidity regulation, controller controls the first solenoid valve to close, second solenoid valve is opened, and passes through second
The heat exchange air quantity of the second evaporator of air-blower control, the evaporating temperature for making the second vaporising device is second temperature, due to the first electromagnetism
Valve is closed, so the first evaporator is without evaporation.
Further, with reference to shown in Fig. 3, the first vaporising device further includes third restricting element；Second vaporising device also wraps
The 4th restricting element is included, this method further includes:
When controller controls the first solenoid valve to open, controller is by controlling third restricting element to control the first evaporator
In cold medium flux be second flow；
When controller control second solenoid valve is opened, controller is by controlling the 4th restricting element to control the second evaporator
In cold medium flux be second flow.
In above-described embodiment, when second solenoid valve is opened, controller is by controlling the 4th restricting element, the second evaporator
In cold medium flux for second flow, the evaporating temperature of the second vaporising device is second temperature；When the first solenoid valve and the second electricity
When magnet valve is opened, controller evaporates the first evaporator and second by controlling third restricting element and the 4th restricting element
Cold medium flux in device is second flow, and the evaporating temperature of the first vaporising device and the second vaporising device is second temperature,
Cold medium flux, which is realized, in heat exchange air quantity and evaporator i.e. by adjusting evaporator fills the first vaporising device and the second evaporation
The control for the evaporating temperature put.
The principle of the embodiment of the present invention is further illustrated referring to pressure-enthalpy chart shown in fig. 5.Wherein, in Fig. 5
Shown ordinate (lgP) represents the logarithm of absolute pressure；Abscissa (h) represents that than enthalpy dotted line a represents saturated solution in figure
Body line, dotted line b represent saturated gas line.Wherein, each point is obtained by carrying out sampling in refrigeration system shown in Fig. 3 in Fig. 5
The point taken, the sampling location of each point is with reference to shown in Fig. 6.Below using first throttle element as the first injector, the second throttling member
Part is the second injector, and refrigeration system system illustrates for adjusting temperature and humidity simultaneously.
Specifically, with reference to shown in Fig. 6, A points distinguish the pipeline of 1 and first injector of connect compressor for the second injector
On split point, B points for compressor 1 low pressure port on a bit, C points for compressor 1 high-pressure mouth on a bit, D points for connect
Connect on the pipeline of compressor 1 and condenser 2 a bit, E points be a bit on the pipeline for connect 2 and first injector of condenser, F
Point is a bit on the entrance port of the first injector, and G points are a bit on the ejecting port of the first injector, and H points are the first injection
On the exit portal of device a bit, I points be a bit on the pipeline for the gas supplementing opening for connecting gas-liquid separate component 5 and compressor 1, J points
The split point on the first solenoid valve 61 and the pipeline of second solenoid valve 71 is connected respectively for gas-liquid separate component 5, and K points are connection the
On the pipeline of three restricting elements 64 and the first evaporator 62 a bit, L points be to connect the first evaporator 62 and the second injector
On pipeline a bit, M be on the second injector entrance port a bit, N points are connection the 4th restricting element 74 and the second evaporator
On 72 pipeline a bit, O points be on the pipeline for connect the second evaporator 72 and the second injector a bit, P points are second to spray
On emitter ejecting port a bit, Q points on the second injector exit portal a bit.
Specifically, with reference to shown in Fig. 5, A points to B press force value, enthalpy and increase；B points press force value increase, enthalpy to C
Reduce；C points press force value, enthalpy compared to D and increase；D points press that force value is constant, enthalpy reduces to E；E points are to F point pressures
Value, enthalpy reduce；F points press that force value is constant, enthalpy increase to G；G points press force value, enthalpy to H and increase；H to I is pressed
Force value is constant, enthalpy increase；I points press that force value is constant, enthalpy reduces to J；It is smaller that J points to K press force value；Enthalpy is constant；K points
To L points, pressure value is constant, enthalpy increase；L points press force value to M, and enthalpy reduces；M points press that force value is constant, enthalpy subtracts to N
It is small；Constant, enthalpy increase that N points to O press force value；O points press that force value is constant, enthalpy reduces to P；P points press force value, enthalpy to Q
Value increases.
Specifically, after the condensed device 2 of the high temperature and pressure refrigerant discharged by compressor 1 condenses, into the first injector conduct
Incident flow, the low pressure refrigerant that injection compressor 1 sucks, it is possible to the pressure of inspiration(Pi) of compressor is improved, inspiratory volume reduces, and
Inspiratory capacity increases, and then increases the refrigerating capacity of refrigeration system；The refrigerant flowed out by the liquid outlet of gas-liquid separate component 5 is divided into two
Road controls the flow of refrigerant in the first evaporator by adjusting third restricting element, by adjusting the 4th restricting element control the
The flow of refrigerant in two evaporators, and coordinate the evaporation air quantity of the first evaporator of control and the second evaporator that can realize the first steaming
Device and the different evaporating temperature of the second evaporator are sent out, the wherein higher evaporator of evaporating temperature is used for the refrigeration of refrigeration system, steams
Send out the dehumidifying that the relatively low evaporator of temperature is used for refrigeration system.Since the refrigerant that the entrance port of the second injector enters enters as master
Jet stream acceleration and pressure decrease in injector, can be with the outlet pressure of refrigerant in the second evaporator of injection, it is possible to improve compressor
The pressure of refrigerant at low pressure port, it is possible to reduce the leakage loss of compressor refrigerant, and then reduce the power consumption of compressor, improve
The pressure of refrigerant can also reduce blowdown pipe cold medium flux at compressor low pressure port, reduce tonifying Qi pipe pressure, further, it is also possible to return
The expansion work of the high pressure refrigerant flowed out in the first evaporator is received, and then reduces the disturbance of refrigerant at compressor low pressure port.
One embodiment of the invention provides a kind of air-conditioning, and air-conditioning includes the refrigeration system of any of the above-described embodiment.The air-conditioning can
To be small-sized household air-conditioning, i.e. one-to-one；Can also be multi-online air-conditioning system, i.e., one drag it is more.One-to-one refers to a room
Outer machine connects the air-conditioning system of an indoor unit by piping；One drag refer to an outdoor unit by piping connect two with
The air-conditioning system of upper (i.e. at least two) indoor unit.It can be with for small-sized household air-conditioning or multi-online air-conditioning system
Include above-mentioned refrigeration system.
In the refrigeration system of air-conditioning provided in an embodiment of the present invention, the liquid outlet of gas-liquid separate component and the first vaporising device
Import and the import of the second vaporising device communicate；The outlet of first vaporising device and the first port phase of the second restricting element
Logical, the outlet of the second vaporising device is communicated with the second port of the second restricting element, the third port and pressure of the second restricting element
The low pressure port of contracting machine communicates；That is the first vaporising device and the second vaporising device are in parallel in refrigeration systems, it is possible to independent right
First vaporising device and the second vaporising device are controlled, it is achieved thereby that the separately adjustable of humidity and temperature, compared to existing
Have in technology and adjust the temperature and humidity embodiment of the present invention only with a set of refrigeration system, institute respectively using two sets of air-conditioning systems
Cost and installation space can be reduced.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (11)
1. a kind of refrigeration system, which is characterized in that including：Compressor, condenser, first throttle element, the second restricting element, gas
Liquid separating component, the first vaporising device and the second vaporising device；
The high-pressure mouth of the compressor is communicated through the condenser with the first port of the first throttle element, the first segment
The second port of fluid element is communicated with the low pressure port of compressor, third port and the gas-liquid separation of the first throttle element
The import of component communicates, and the gas outlet of the gas-liquid separate component is communicated with the gas supplementing opening of compressor, the gas-liquid separate component
Liquid outlet communicated with the import of first vaporising device, the liquid outlet of gas-liquid separate component also with second vaporising device
Import communicate；The outlet of first vaporising device is communicated with the first port of second restricting element, and described second steams
Transmitting apparatus outlet is communicated with the second port of second restricting element, third port and the pressure of second restricting element
The low pressure port of contracting machine communicates；
First vaporising device includes：First solenoid valve, the first evaporator and the first wind turbine, the second vaporising device packet
It includes：Second solenoid valve, the second evaporator and the second wind turbine, wherein, first wind turbine is used to provide to first evaporator
Exchange heat air-flow, and second wind turbine is used to provide heat exchange air-flow to second evaporator；
The first port of first solenoid valve is communicated with the liquid outlet of the gas-liquid separate component, and the of first solenoid valve
Two-port netwerk is communicated with the first port of first evaporator, the second port of first evaporator and the described second throttling member
The first port of part communicates；
The first port of the second solenoid valve is communicated with the liquid outlet of the gas-liquid separate component, and the of the second solenoid valve
Two-port netwerk is communicated with the first port of second evaporator, the second port of second evaporator and the described second throttling member
The second port of part communicates；
First vaporising device further includes：Third restricting element, second vaporising device further include：4th restricting element；
The first port of the third restricting element is communicated with the second port of first solenoid valve, the third restricting element
Second port communicated with the first port of first evaporator；
The first port of 4th restricting element is communicated with the second port of the second solenoid valve, the 4th restricting element
Second port communicated with the first port of second evaporator.
2. refrigeration system according to claim 1, which is characterized in that the first throttle element is injector；Described
The first port of one restricting element is the entrance port of the injector, and the second port of the first throttle element is the injection
The ejecting port of device, the third port of the first throttle element are the exit portal of the injector.
3. refrigeration system according to claim 1, which is characterized in that second restricting element is injector；Described
The first port of two restricting elements is the entrance port of the injector, and the second port of second restricting element is the injection
The ejecting port of device, the third port of second restricting element are the exit portal of the injector.
4. refrigeration system according to claim 1, which is characterized in that the gas-liquid separate component is flash evaporation.
5. a kind of control method of refrigeration system, applied to controller, the controller is contained in any one of claim 1-4 institutes
The refrigeration system stated, for controlling the refrigeration system, which is characterized in that the method includes：
When the refrigeration system is carried out at the same time adjusting to temperature and humidity, the controller controls the evaporation of the first vaporising device
Temperature is the first temperature, and the evaporating temperature of the second vaporising device of control is second temperature；
When temperature is adjusted in the refrigeration system, it is first that the controller, which controls the evaporating temperature of the first vaporising device,
Temperature, the evaporating temperature of the second vaporising device of control is for the first temperature or without evaporation；
When humidity is adjusted in the refrigeration system, it is second that the controller, which controls the evaporating temperature of the first vaporising device,
Temperature or without evaporation, control the second vaporising device evaporating temperature be second temperature；
Wherein, first temperature is higher than the second temperature.
6. according to the method described in claim 5, it is characterized in that, the controller controls the evaporating temperature of the first vaporising device
For the first temperature, the evaporating temperature for controlling second vaporising device is second temperature；Including：
The controller controls the first magnet valve to open, and is by the heat exchange air quantity for controlling the first evaporator described in the first air-blower control
First air quantity, the evaporating temperature for making the first vaporising device are the first temperature；
The controller controls the second magnet valve to open, and is by the heat exchange air quantity for controlling the second evaporator described in the second air-blower control
Second air quantity, the evaporating temperature for making the second vaporising device are second temperature；
Wherein, first air quantity is more than second air quantity.
7. according to the method described in claim 6, it is characterized in that, the method further includes：
The controller is first flow by the way that third restricting element is controlled to control the cold medium flux in first evaporator,
The controller is second flow by the way that the 4th restricting element is controlled to control the cold medium flux in second evaporator,
Wherein, the first flow is more than the second flow.
8. according to the method described in claim 5, it is characterized in that, the controller controls the evaporating temperature of the first vaporising device
For the first temperature, the evaporating temperature of second vaporising device is controlled for the first temperature or without evaporating, including：
The controller controls the first solenoid valve and second solenoid valve to open, by controlling first the first evaporator of air-blower control
Heat exchange air quantity is the first air quantity, is the first air quantity by the heat exchange air quantity for controlling second the second evaporator of air-blower control, makes first
The evaporating temperature of vaporising device is the first temperature, and the evaporating temperature of the second vaporising device is the first temperature；
Or, the first solenoid valve of control is opened, second solenoid valve is closed, by the heat exchange for controlling first the first evaporator of air-blower control
Air quantity is the first air quantity, and the evaporating temperature for making the first vaporising device is the first temperature, and the second vaporising device is without evaporation.
9. according to the method described in claim 8, it is characterized in that, the method further includes：
When the controller controls first solenoid valve to open, the controller is by controlling third restricting element to control institute
It is first flow to state the cold medium flux in the first evaporator；
When the controller controls the second solenoid valve to open, the controller is by controlling the 4th restricting element to control institute
It is first flow to state the cold medium flux in the second evaporator.
10. according to the method described in claim 5, it is characterized in that, the controller controls the evaporation temperature of the first vaporising device
It spends for second temperature or without evaporation, the evaporating temperature for controlling second vaporising device is second temperature, including：
The controller controls the first solenoid valve and second solenoid valve to open, by controlling first the first evaporator of air-blower control
Heat exchange air quantity is the second air quantity, is the second air quantity by the heat exchange air quantity for controlling second the second evaporator of air-blower control, makes first
The evaporating temperature of vaporising device is second temperature, and the evaporating temperature of the second vaporising device is second temperature；
Or, the first solenoid valve of control is closed, second solenoid valve is opened, by the heat exchange for controlling second the second evaporator of air-blower control
Air quantity is the second air quantity, and making the first vaporising device, the evaporating temperature of the second vaporising device is second temperature without evaporation.
11. according to the method described in claim 10, it is characterized in that, the method further includes:
When the controller controls first solenoid valve to open, the controller is by controlling third restricting element to control institute
It is second flow to state the cold medium flux in the first evaporator；
When the controller controls the second solenoid valve to open, the controller is by controlling the 4th restricting element to control institute
It is second flow to state the cold medium flux in the second evaporator.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109269136B (en) * | 2018-08-07 | 2024-06-11 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN109556320B (en) * | 2018-11-09 | 2023-11-03 | 广东申菱环境系统股份有限公司 | Compression/injection composite double-evaporation type temperature and humidity independent control air conditioning system |
| CN109595721A (en) * | 2018-12-12 | 2019-04-09 | 江苏翼兰博特新能源科技有限公司 | A kind of leaving air temp control air-conditioning |
| CN110578985B (en) * | 2019-09-20 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Control method of air conditioner and air conditioner |
| CN112815561B (en) * | 2019-10-31 | 2022-03-25 | 广东美的白色家电技术创新中心有限公司 | Refrigeration device |
| CN110848825A (en) * | 2019-11-20 | 2020-02-28 | 珠海格力电器股份有限公司 | Air conditioning system with fresh air dehumidification function, air conditioner and control method |
| CN110939998A (en) * | 2019-11-20 | 2020-03-31 | 珠海格力电器股份有限公司 | Air conditioning system, air conditioner and control method |
| CN110789301B (en) * | 2019-11-21 | 2021-02-02 | 奇瑞汽车股份有限公司 | Double-evaporator air conditioning system and matching method thereof |
| CN111023363B (en) * | 2019-12-17 | 2021-10-29 | 海信（山东）空调有限公司 | Air conditioner and control method |
| CN112097355B (en) * | 2020-10-12 | 2024-07-19 | 珠海格力电器股份有限公司 | Water chilling unit, control method thereof and air conditioning equipment |
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