CN107975916B - air conditioning system control method, device and system - Google Patents
air conditioning system control method, device and system Download PDFInfo
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- CN107975916B CN107975916B CN201711118122.0A CN201711118122A CN107975916B CN 107975916 B CN107975916 B CN 107975916B CN 201711118122 A CN201711118122 A CN 201711118122A CN 107975916 B CN107975916 B CN 107975916B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 186
- 239000003507 refrigerant Substances 0.000 claims abstract description 72
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The present disclosure is directed to an air conditioning system control method, apparatus, and system, so as to at least solve the problem of instability of an air conditioning system caused by one outdoor unit providing cooling to two independent cooling areas in the related art. The air conditioning system in the present disclosure includes a main cooling supply path and at least two cooling branch paths, and the air conditioning system control method includes: acquiring a first superheat degree of a main cooling supply path and a second superheat degree of at least two cooling branch paths; the refrigerant flow of the at least two cooling branch circuits is adjusted according to the second superheat degree, and/or the refrigerant flow of the main cooling branch circuit is adjusted according to the first superheat degree.
Description
Technical field
The present invention relates to air-conditioning system technical fields, in particular to a kind of air conditioner system control method, device and are
System.
Background technique
Currently, the use of the control mode that an outer machine controls two kinds of library temperature being usually individually to control each freezer, i.e., often
A freezer uses independent control, and the schematic diagram of system is usually as shown in Figure 1.After compressor air-discharging is condensed by condenser,
It is divided into independent cooling supply branch to control library temperature, is will lead to after cooling supply branch temperature reaches requirement in this way, cooling supply main road
Relevant parameter then can not necessarily reach requirement and not reach requirement, and will lead to air-conditioning system fluctuation of service in this way, be easy to compression
Machine damages.
Summary of the invention
The present invention provides a kind of air conditioner system control methods, apparatus and system, at least to solve one in the related technology
Outer machine is the problem that caused air-conditioning system is unstable in the case where two independent cooling supply district coolings.
According to an aspect of the invention, there is provided a kind of air conditioner system control method, the air-conditioning system includes cooling supply
Main road, at least two-way cooling supply branch, which comprises obtain first degree of superheat of the cooling supply main road, at least two-way
Second degree of superheat of cooling supply branch；The refrigerant flow of at least two-way cooling supply branch is adjusted according to second degree of superheat,
And/or the refrigerant flow of the cooling supply main road is adjusted according to first degree of superheat.
Optionally, the refrigerant flow that at least two-way cooling supply branch is adjusted according to second degree of superheat, and/
Or the refrigerant flow of the cooling supply main road is adjusted according to first degree of superheat, comprising: in first degree of superheat and first
In the case that the difference of preset value is not more than the second preset value, according to the size of second degree of superheat and first preset value
Relationship adjusts the refrigerant flow of at least two-way cooling supply branch.
Optionally, the refrigerant flow that at least two-way cooling supply branch is adjusted according to second degree of superheat, and/
Or the refrigerant flow of the cooling supply main road is adjusted according to first degree of superheat, comprising: in first degree of superheat less than
In the case where one preset value, the refrigerant flow of the cooling supply main road is turned down；According to second degree of superheat and described first
The size relation of preset value adjusts the refrigerant flow of at least two-way cooling supply branch.
Optionally, the refrigerant flow that at least two-way cooling supply branch is adjusted according to second degree of superheat, and/
Or the refrigerant flow of the cooling supply main road is adjusted according to first degree of superheat, comprising: be greater than the in first degree of superheat
In the case where one preset value, the refrigerant flow of the cooling supply main road is tuned up；According to second degree of superheat and described first
The size relation of preset value adjusts the refrigerant flow of at least two-way cooling supply branch.
Optionally, described to adjust described at least two according to second degree of superheat and the size relation of first preset value
The refrigerant flow of road cooling supply branch, comprising: when second degree of superheat is less than first preset value, by described at least two
The refrigerant flow of road cooling supply branch is turned down, when second degree of superheat is greater than first preset value, by described at least two
The refrigerant flow of road cooling supply branch increases.
Optionally, the method also includes: tune up or turn down by the refrigerant flow of at least two-way cooling supply branch
Later, the refrigerant flow of the cooling supply main road is adjusted, so that first degree of superheat and at least two-way cooling supply branch
Second degree of superheat tend to first preset value.
Optionally, a pipeline is provided between the cooling supply main road and the compressor of the air-conditioning system, on the pipeline
It is provided with expansion valve and solenoid valve, the method also includes: it is greater than third preset value in the temperature for detecting the compressor
In the case where, it controls the solenoid valve and opens；The flow of the expansion valve is adjusted, according to the temperature of the compressor to reduce
State the temperature of compressor.
According to the second aspect of the invention, a kind of air-conditioning system control device is provided, the air-conditioning system includes supplying
Cold main road, at least two-way cooling supply branch, described device include: acquisition module, for obtaining the first overheat of the cooling supply main road
Second degree of superheat of degree, at least two-way cooling supply branch；Adjustment module, for according to second degree of superheat adjust it is described to
Lack the refrigerant flow of two-way cooling supply branch, and/or adjusts the refrigerant stream of the cooling supply main road according to first degree of superheat
Amount.
According to the third aspect of the present invention, a kind of air-conditioning system is provided, comprising: cooling supply main road, the first cooling supply branch
And the second cooling supply branch, the first solenoid valve and the first expansion valve are provided between the cooling supply main road and cooling supply branch.
Optionally, a pipeline is provided between the cooling supply main road and the compressor of the air-conditioning system, on the pipeline
It is provided with the second expansion valve and second solenoid valve.
Scheme provided by the embodiments of the present application, according to the degree of superheat of the cooling supply main road in the system detected and at least two
The degree of superheat of road cooling supply branch and the size relation of preset value adjust the refrigerant flow of cooling supply main road and/or cooling supply branch, from
And can guarantee that each cooling supply branch and cooling supply main road are all satisfied the preset degree of superheat, improve the stability of air-conditioning system.
Detailed description of the invention
Fig. 1 is the schematic diagram of air-conditioning system in the related technology；
Fig. 2 is the flow chart of the air conditioner system control method of the embodiment of the present application 1；
Fig. 3 is the block diagram of the air-conditioning system control device of the present embodiment 1；
Fig. 4 is the schematic diagram of the air-conditioner control system of the present embodiment 2.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Embodiment 1
A kind of air conditioner system control method is present embodiments provided, this method is for controlling air-conditioning system, wherein
Air-conditioning system includes cooling supply main road, at least two-way cooling supply branch, and Fig. 2 is the flow chart of this method, as shown in Fig. 2, this method packet
Include following processing:
Step 201: obtaining first degree of superheat, second degree of superheat of at least two-way cooling supply branch of cooling supply main road；
Wherein, in step 201, it can be first degree of superheat for first obtaining cooling supply main road, wait be based on the degree of superheat to confession
After the refrigerant flow of cold main road is adjusted, then second degree of superheat of at least two-way cooling supply branch is obtained, can also be and obtaining
Second degree of superheat of at least two-way cooling supply branch is obtained while taking first degree of superheat of cooling supply main road, in the present embodiment, is supplied
First degree of superheat of cold main road subtracts evaporating temperature by the current suction temperature of cooling supply main road and obtains, wherein the temperature of cooling supply main road
Degree can be detected by the way that temperature monitor is arranged in cooling supply main road, and empirical value can be used in evaporating temperature, similarly, at least
The degree of superheat of two-way cooling supply main road can use the principle equally to acquire.
First degree of superheat and second degree of superheat being related in the present embodiment are suction superheat.
Step 202: the refrigerant flow of at least two-way cooling supply branch is adjusted according to second degree of superheat, and/or according to first
The refrigerant flow of degree of superheat adjusting cooling supply main road.
It wherein, can be by controlling the expansion being set on cooling supply main road to adjusting for the refrigerant flow of cooling supply main road
Valve and solenoid valve are realized.
It is approximately equal to the first preset value, first degree of superheat less than the first preset value and first from first degree of superheat individually below
The degree of superheat is greater than in the case of three kinds of the first preset value, to the tune of the refrigerant flow of cooling supply main road and at least two cooling supply branches
Section operation is illustrated.Wherein, the first preset value is the setting value of the suction superheat of cooling supply main road, can be with when presetting the value
The value is set according to the classification of different compressors, varying environment temperature and refrigerated area, it in the present embodiment, should
Value can be set to 7 degrees Celsius.
In the case where first degree of superheat and the difference of the first preset value are not more than the second preset value, according to second degree of superheat
It adjusts at least refrigerant flow of two-way cooling supply branch and/or the refrigerant flow of cooling supply main road is adjusted according to first degree of superheat
Operation may include: the refrigerant that at least two-way cooling supply branch is adjusted according to second degree of superheat and the size relation of the first preset value
Flow, wherein the second preset value is the numerical value of a very little, and first degree of superheat and the difference of the first preset value are pre- no more than second
If value then indicates that first degree of superheat is approximately equal to the first preset value.In that case, it is not necessarily to adjust the refrigeration of cooling supply main road for the time being
Device flow.
In the case where first degree of superheat is less than the first preset value, at least two-way cooling supply branch is adjusted according to second degree of superheat
Refrigerant flow, and/or according to first degree of superheat adjust cooling supply main road refrigerant flow operation, may include: that will supply
The refrigerant flow of cold main road is turned down；At least two-way cooling supply branch is adjusted according to second degree of superheat and the size relation of the first preset value
The refrigerant flow on road.
In the case where first degree of superheat is greater than the first preset value, at least two-way cooling supply branch is adjusted according to second degree of superheat
Refrigerant flow, and/or according to first degree of superheat adjust cooling supply main road refrigerant flow operation, comprising: by cooling supply master
The refrigerant flow on road tunes up；According to second degree of superheat and the size relation adjusting at least two-way cooling supply branch of the first preset value
Refrigerant flow.
Optionally, in the present embodiment, at least two-way is adjusted according to second degree of superheat and the size relation of the first preset value
The operation of the refrigerant flow of cooling supply branch may include: that will at least two-way supply when second degree of superheat is less than the first preset value
The refrigerant flow of cold branch is turned down, when second degree of superheat is greater than the first preset value, by the refrigeration of at least two-way cooling supply branch
Agent flux increases.
In the present embodiment, after adjusting the refrigerator flow of at least two-way cooling supply branch respectively, in order to ensure cooling supply
The degree of superheat of main road meets the requirements, and method provided in this embodiment can also include: by the refrigeration of at least two-way cooling supply branch
After agent flux is tuned up or turned down, the refrigerant flow of cooling supply main road is adjusted, so that first degree of superheat and at least two-way cooling supply
Second degree of superheat of branch.
Optionally, it is provided with a pipeline between the cooling supply main road of the present embodiment and the compressor of air-conditioning system, on the pipeline
It is provided with expansion valve and solenoid valve, is based on this, method provided in this embodiment can also include: in the temperature for detecting compressor
In the case that degree is greater than third preset value, control solenoid valve is opened；According to the flow of the temperature variable expansion valve of compressor, with drop
The temperature of low compressor, wherein third preset value is a higher temperature, such as higher than 130 degree, in that case, is led to
It crosses to cooling compressor, can play a protective role to compressor.
Below in conjunction with Fig. 3 by example to use air conditioning control method provided by the embodiments of the present application into air-conditioning system
The process controlled of uniting is illustrated.
Fig. 3 is according to the schematic diagram of the illustrative air-conditioning system of the embodiment of the present application one, as shown in figure 3, the air-conditioning system
Including cooling supply main road 30, the first cooling supply branch 301, the second cooling supply branch 302, compressor 31, air-cooled condenser 32, liquid storage device
33, device for drying and filtering 34, wherein hydrojet solenoid valve 35 and electric expansion valve 36, the first cooling supply branch are provided on cooling supply main road
It is provided with electric expansion valve 37 on road 301, is additionally provided with hydrojet solenoid valve, end is connected to the first cooling supply region, the second cooling supply
It is provided with electric expansion valve 38 on branch 302, is additionally provided with hydrojet solenoid valve, end connects the second cooling supply region.In addition, for
It is additionally provided with a pipeline between cold main road 30 and compressor 31, hydrojet solenoid valve 39 and electric expansion valve are provided on the pipeline
310, in addition, there are also check valves etc. in the Fig. 3.
In this example embodiment, air conditioner unit is set to cooling supply main road and cooling supply branch temperature monitor when being run
(being temporarily not shown in Fig. 3) synchronous detection temperature value, detects △ T, △ T1 and △ T2, determines △ T, △ T1 and △ T2 respectively
With △ TSetting value、△T1Setting value、△T2Setting valueRelativeness, cooling supply master is set to control respectively according to the relativeness determined
The electric expansion valve of road and cooling supply branch is adjusted, and according to the temperature value detected, is divided into following several situations.
1. when detecting Δ T ≈ △ TSetting valueWhen, synchronous detection △ T1, △ T2 and △ T1Setting value、△T2Setting valueRelativeness:
In △ T1 < △ T1Setting valueAnd △ T2 < △ T2Setting valueWhen, reduce electric expansion valve 37 according to logic and electronics is swollen
The aperture of swollen valve 38 is adjusted in synchronism the electric expansion valve 36 of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueAnd △
T2≈△T2Setting value；
In △ T1 < △ T1Setting valueAnd △ T2 > △ T2Setting valueWhen, reduce the aperture of electric expansion valve 37 according to logic, together
Step increases the aperture of electric expansion valve 38, is adjusted in synchronism main road electric expansion valve 36, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting value
With △ T2 ≈ △ T2Setting value；
In △ T1 > △ T1Setting valueWith △ T2 < △ T2Setting valueWhen, increase the aperture of electric expansion valve 37 according to logic, reduces
The aperture of electric expansion valve 38 is adjusted in synchronism the electric expansion valve 36 of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting value
With △ T2 ≈ △ T2Setting value；
In △ T1 > △ T1Setting valueWith △ T2 > △ T2Setting valueWhen, increase the aperture of electric expansion valve 37 and 38 according to logic,
It is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
2. when detecting Δ T < △ TSetting valueWhen, main road electric expansion valve 36 is adjusted first according to logic, reduces main road electronics
The aperture of expansion valve 36, synchronous detection △ T1, △ T2 and △ T1Setting value、△T2Setting valueRelativeness:
In △ T1 < △ T1Setting valueAnd △ T2 < △ T2Setting valueWhen, reduce opening for electric expansion valve 37 and 38 according to logic
Degree is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
In △ T1 < △ T1Setting valueWith △ T2 > △ T2Setting valueWhen, reduce the aperture of electric expansion valve 37 according to logic, it is synchronous
Increase the aperture of electric expansion valve 38, is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△
T1Setting valueWith △ T2 ≈ △ T2Setting value；
In △ T1 > △ T1Setting valueWith △ T2 < △ T2Setting valueWhen, increase the aperture of electric expansion valve 37 according to logic, reduces
The aperture of electric expansion valve 38 is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith
△T2≈△T2Setting value；
In △ T1 > △ T1Setting valueWith △ T2 > △ T2Setting valueWhen, increase the aperture of electric expansion valve 37 and 38 according to logic,
It is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
3. when detecting Δ T > △ TSetting valueWhen, it adjusts the electric expansion valve of cooling supply main road first according to logic, increases cooling supply
The aperture of the electric expansion valve 36 of main road, synchronous detection △ T1, △ T2 and △ T1Setting value, △ T2 setting value relativeness:
In △ T1 < △ T1Setting valueWith △ T2 < △ T2Setting valueWhen, reduce the aperture of electric expansion valve 37 and 38 according to logic,
It is adjusted in synchronism the electric expansion valve 36 of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value；
In △ T1 < △ T1Setting valueWith △ T2 > △ T2Setting valueWhen, reduce the aperture of electric expansion valve 37 according to logic, it is synchronous
Increase the aperture of electric expansion valve 38, is adjusted in synchronism main road electric expansion valve 36, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith
△T2≈△T2Setting value；
In △ T1 > △ T1Setting valueWith △ T2 < △ T2Setting valueWhen, increase the aperture of electric expansion valve 37 according to logic, reduces
The aperture of electric expansion valve 38 is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith
△T2≈△T2Setting value；
In △ T1 > △ T1Setting valueWith △ T2 > △ T2Setting valueWhen, increase the aperture of electric expansion valve 37 and 38 according to logic,
It is adjusted in synchronism the electric expansion valve of cooling supply main road, makes Δ T ≈ △ TSetting value、△T1≈△T1Setting valueWith △ T2 ≈ △ T2Setting value。
According to the interrelated logic of above-mentioned control cooling supply main road and the electric expansion valve of cooling supply branch adjust, make cooling supply main road and
The suction superheat of cooling supply branch can meet requirement of system design, make system more stable operation.
Embodiment 2
Present embodiments provide a kind of air-conditioning system control device, involved air-conditioning system includes cooling supply main road, extremely
Few two-way cooling supply branch, Fig. 4 is the block diagram of the device, as shown in figure 4, the device includes following component part:
Module 4 is obtained, for obtaining first degree of superheat of cooling supply main road, second degree of superheat of at least two-way cooling supply branch；
Adjustment module, for the refrigerant flow according to second degree of superheat adjusting at least two-way cooling supply branch, and/or according to
The refrigerant flow of first degree of superheat adjusting cooling supply main road.
Adjustment module 42, user adjust the refrigerant flow and/or root of at least two-way cooling supply branch according to second degree of superheat
The refrigerant flow of cooling supply main road is adjusted according to first degree of superheat.
In one case, the adjustment module 42 is used for little in first degree of superheat and the difference of the first preset value
It is described at least according to second degree of superheat and the adjusting of the size relation of first preset value in the case where the second preset value
The refrigerant flow of two-way cooling supply branch.
In another case, the adjustment module 42 further include: first adjusts unit, in first degree of superheat
In the case where less than the first preset value, the refrigerant flow of the cooling supply main road is turned down；Second adjusts unit, for according to institute
State the refrigerant flow of the size relation adjusting at least two-way cooling supply branch of second degree of superheat and first preset value.
In still another case, the adjustment module 42 includes: that third adjusts unit, for big in first degree of superheat
In the case where the first preset value, the refrigerant flow of the cooling supply main road is tuned up；4th adjusts unit, for according to
Second degree of superheat and the size relation of first preset value adjust the refrigerant flow of at least two-way cooling supply branch.
Wherein, above-mentioned second adjusting unit and the 4th adjusting unit may further be used for: when second degree of superheat
When less than first preset value, the refrigerant flow of at least two-way cooling supply branch is turned down, when second degree of superheat
When greater than first preset value, the refrigerant flow of at least two-way cooling supply branch is increased.
Optionally, the air-conditioning system control device in the present embodiment can also include another adjustment module, the mould including
Block is used for after the refrigerant flow of at least two-way cooling supply branch is tuned up or turned down, adjusts the system of the cooling supply main road
Cryogen flow, so that first degree of superheat and second degree of superheat of at least two-way cooling supply branch tend to described first in advance
If value.
Optionally, the cooling supply main road in the present embodiment and a pipe is provided between the compressor of the air-conditioning system
Road is provided with expansion valve and solenoid valve on the pipeline, is based on this, and device provided in this embodiment can also include: control
Module, for controlling the second solenoid valve and opening in the case where detecting that the temperature of the compressor is greater than third preset value
It opens；Flow adjustment module, for adjusting the flow of second expansion valve according to the temperature of the compressor, to reduce the pressure
The temperature of contracting machine.
Embodiment 3
A kind of air-conditioning system is present embodiments provided, referring to above-mentioned Fig. 3, as shown in figure 3, the system includes:
Cooling supply main road, at least two-way cooling supply branch show the first cooling supply branch and the second cooling supply branch in Fig. 3 for the time being,
Solenoid valve and expansion valve are provided between cooling supply main road and cooling supply branch.As shown in figure 3, the pressure of cooling supply main road and air-conditioning system
It is provided with a pipeline between contracting machine, expansion valve and solenoid valve are provided on the pipeline.
Wherein, the air-conditioning system in the present embodiment can also include air-cooled condenser, liquid storage device, drying shown in Fig. 3
Filter, the first cooling supply region, the second cooling supply region and, solenoid valve and check valve for being set to before expansion valve etc..
Air-conditioning system provided in this embodiment can be come using documented air conditioner system control method in above-described embodiment 1
It is controlled, wherein controlled in control method by the flow to expansion valve, expansion valve and expansion valve to realize to confession
The adjusting of the refrigerant flow of cold branch and cooling supply main road, since specific control method has carried out in detail in the above-described embodiments
Thin elaboration, therefore details are not described herein again.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
The common knowledge in the art that person's adaptive change follows general principle of the invention and do not invent including the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (6)
1. a kind of air conditioner system control method, which is characterized in that the air-conditioning system includes cooling supply main road, at least two-way cooling supply branch
Road, the air conditioner system control method include:
Obtain first degree of superheat of the cooling supply main road, second degree of superheat of at least two-way cooling supply branch；
The refrigerant flow of at least two-way cooling supply branch is adjusted according to second degree of superheat, and/or according to described first
The degree of superheat adjusts the refrigerant flow of the cooling supply main road；
The refrigerant flow that at least two-way cooling supply branch is adjusted according to second degree of superheat, and/or according to described
First degree of superheat adjusts the refrigerant flow of the cooling supply main road, comprising:
In the case where first degree of superheat and the difference of the first preset value are not more than the second preset value, according to second mistake
Temperature and the size relation of first preset value adjust the refrigerant flow of at least two-way cooling supply branch；
It is described that at least two-way cooling supply branch is adjusted according to second degree of superheat and the size relation of first preset value
Refrigerant flow, comprising:
When second degree of superheat is less than first preset value, by the refrigerant flow tune of at least two-way cooling supply branch
It is small, when second degree of superheat is greater than first preset value, the refrigerant flow of at least two-way cooling supply branch is increased
Greatly；
The method also includes:
After the refrigerant flow of at least two-way cooling supply branch is tuned up or turned down, the refrigeration of the cooling supply main road is adjusted
Agent flux is preset so that first degree of superheat and second degree of superheat of at least two-way cooling supply branch tend to described first
Value；
It is provided with a pipeline between the cooling supply main road and the compressor of the air-conditioning system, is provided with expansion valve on the pipeline
And solenoid valve, the method also includes:
In the case where detecting that the temperature of the compressor is greater than third preset value, controls the solenoid valve and open；
The flow of the expansion valve is adjusted, according to the temperature of the compressor to reduce the temperature of the compressor.
2. air conditioner system control method according to claim 1, which is characterized in that described according to second degree of superheat tune
The refrigerant flow of the section at least two-way cooling supply branch, and/or the cooling supply main road is adjusted according to first degree of superheat
Refrigerant flow, comprising:
In the case where first degree of superheat is less than the first preset value, the refrigerant flow of the cooling supply main road is turned down；
The system of at least two-way cooling supply branch is adjusted according to second degree of superheat and the size relation of first preset value
Cryogen flow.
3. air conditioner system control method according to claim 1, which is characterized in that described according to second degree of superheat tune
The refrigerant flow of the section at least two-way cooling supply branch, and/or the cooling supply main road is adjusted according to first degree of superheat
Refrigerant flow, comprising:
In the case where first degree of superheat is greater than the first preset value, the refrigerant flow of the cooling supply main road is tuned up；
The system of at least two-way cooling supply branch is adjusted according to second degree of superheat and the size relation of first preset value
Cryogen flow.
4. a kind of air-conditioning system control device, which is characterized in that the air-conditioning system control device requires 1- for perform claim
Air conditioner system control method described in any one of claim 3, the air-conditioning system include cooling supply main road, at least two-way confession
Cold branch, the air-conditioning system control device include:
Module is obtained, for obtaining first degree of superheat of the cooling supply main road, the second overheat of at least two-way cooling supply branch
Degree；
Adjustment module, for the refrigerant flow according to the second degree of superheat adjusting at least two-way cooling supply branch, and/or
The refrigerant flow of the cooling supply main road is adjusted according to first degree of superheat；
The adjustment module, for the case where the difference of first degree of superheat and the first preset value is not more than the second preset value
Under, the refrigeration of at least two-way cooling supply branch is adjusted according to second degree of superheat and the size relation of first preset value
Agent flux.
5. a kind of air-conditioning system, which is characterized in that the air-conditioning system is any into claim 3 for perform claim requirement 1
Air conditioner system control method described in one, the air-conditioning system include:
Cooling supply main road, the first cooling supply branch and the second cooling supply branch are provided between the cooling supply main road and cooling supply branch
One solenoid valve and the first expansion valve.
6. air-conditioning system according to claim 5, which is characterized in that the compression of the cooling supply main road and the air-conditioning system
It is provided with a pipeline between machine, the second expansion valve and second solenoid valve are provided on the pipeline.
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| CN106907876A (en) * | 2017-02-21 | 2017-06-30 | 广东美的暖通设备有限公司 | Air-conditioning system and its evaporating temperature control method |
| JP6156528B1 (en) * | 2016-02-16 | 2017-07-05 | ダイキン工業株式会社 | Refrigeration equipment |
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| JPH08159589A (en) * | 1994-12-02 | 1996-06-21 | Hitachi Ltd | Multi-room air conditioner and operating method thereof |
| CN101981389A (en) * | 2008-03-31 | 2011-02-23 | 大金工业株式会社 | refrigeration unit |
| CN104807229A (en) * | 2015-04-27 | 2015-07-29 | 广东美的暖通设备有限公司 | Multi-split air conditioner and control method thereof |
| JP6156528B1 (en) * | 2016-02-16 | 2017-07-05 | ダイキン工業株式会社 | Refrigeration equipment |
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