CN110822711A - Water heater and hot water tank, control method and controller thereof - Google Patents
Water heater and hot water tank, control method and controller thereof Download PDFInfo
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- CN110822711A CN110822711A CN201911154028.XA CN201911154028A CN110822711A CN 110822711 A CN110822711 A CN 110822711A CN 201911154028 A CN201911154028 A CN 201911154028A CN 110822711 A CN110822711 A CN 110822711A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Thermal Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a water heater, a hot water tank of the water heater, a control method and a controller, and belongs to the technical field of hot water tanks. This hot water tank includes water tank body and internal circulation device, and internal circulation device is including mixing the water subassembly, mixes the water subassembly and is used for mixing the hot water at the cold water of bottom and top in the water tank body. This application can make the inside from top to bottom self-loopa of hot water tank body, improves water tank body temperature layering, improves heat pump water heater operating efficiency.
Description
Technical Field
The invention relates to the technical field of hot water tanks, in particular to a water heater, a hot water tank, a control method and a controller thereof.
Background
With the improvement of living standard of people, the household water heater is popularized to thousands of households, and the air source heat pump water heater serving as the household water heater is acknowledged to be one of the most energy-saving water heaters due to high heating efficiency and flexible and intelligent use.
The heat pump water heater is usually matched with a hot water tank in the using process to ensure heat storage and use comfort, the hot water tank is used as a condenser of the heat pump water heater, and the heat exchange effect of the hot water tank directly influences the operation energy efficiency of the heat pump water heater.
As is known, the density of water varies linearly with the temperature, the density of hot water in a hot water tank is small and concentrated on the upper part of the water tank, the density of cold water is large and concentrated on the lower part of the water tank, and a layering phenomenon is generated, so that the temperature distribution of the whole water tank is uneven.
The temperature stratification of the hot water tank during the operation of the unit heating water is reduced, so that the condensation pressure of the unit can be effectively reduced, the operation power consumption of the unit is further reduced, the operation efficiency of the heat pump water heater is improved, and the influence of the improvement on the water tank stratification on the performance of the heat pump water heater adopting the static heating water tank is most obvious.
At present, the most common static heating type water tank is mainly used for improving the water tank layering by optimizing a refrigerant heat exchange coil outside or inside the water tank, the problem of main water tank layering can be solved by adopting a main water tank form and an auxiliary water tank form, the cost is greatly improved, the effective volume of a hot water tank is reduced, and the heat pump water heater is not beneficial to popularization and use.
Disclosure of Invention
The invention provides a water heater, a hot water tank thereof, a control method and a controller, aiming at solving the problem of higher power consumption caused by water stratification of a heat pump water heater of a static heating type water tank in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect, a hot water tank for a water heater comprises a tank body and an internal circulation device, wherein the internal circulation device comprises a water mixing assembly, and the water mixing assembly is used for mixing cold water at the bottom and hot water at the top in the tank body.
Furthermore, the water mixing assembly comprises a circulating water pump and a flow guide pipe, one end of the flow guide pipe is connected to the bottom of the water tank body, the other end of the flow guide pipe is connected to the top of the water tank body, and the circulating water pump mixes cold water at the bottom and hot water at the top in the water tank body through the flow guide pipe.
Further, the internal circulation device comprises a water inlet pipe arranged at the bottom of the water tank body and a water outlet pipe arranged at the top of the water tank body, wherein one end of the flow guide pipe is connected into the water inlet pipe, and the other end of the flow guide pipe is connected into the water outlet pipe.
Further, the device also comprises a water flow detection element and a controller;
the water flow detection element is used for detecting the water flow state in the water tank body;
the controller judges whether a user uses hot water according to the water flow state, and controls the circulating water pump to be started when the water heater is started and is in a state that the user does not use the water heater.
Further, the water flow detection element is a microswitch.
Further, the micro switch is arranged on the water inlet pipe or the water outlet pipe.
Further, the circulating water pump is a canned pump.
Further, the water mixing assembly enables water to flow from the water outlet pipe to the water inlet pipe through the flow guide pipe.
Furthermore, when the water outlet of the circulating water pump is connected with the water inlet pipe, the water mixing assembly is also provided with a one-way valve, and the flow direction of the one-way valve is consistent with that of the circulating water pump.
Further, the check valve is installed at a water inlet or a water outlet of the circulating water pump.
Further, the micro switch is a water flow switch or a pressure switch.
Furthermore, the water mixing assembly is detachably connected with the hot water tank body, or the circulating water pump and the hot water tank body are integrally formed.
Further, the water circulation system also comprises a controller, wherein the controller is used for controlling the opening of the water circulation pump.
In a second aspect, a method of controlling a hot water tank as claimed in any one of the above claims, comprising the steps of:
sending a trigger signal to the water mixing assembly;
the water mixing assembly is started according to the trigger signal, and mixes cold water at the bottom and hot water at the top in the water tank body.
Further, mix the water subassembly and include circulating water pump and honeycomb duct, mix the water subassembly according to trigger signal starts, will the cold water of bottom and the hot water at top mix in the water tank body and do: and the circulating water pump mixes the cold water at the bottom and the hot water at the top in the water tank body through the flow guide pipe according to the trigger signal.
Further, before the sending of the trigger signal to the water mixing assembly, the method further comprises:
acquiring a water flow state;
judging whether the user uses hot water according to the water flow state;
send trigger signal to muddy water subassembly does: when the water heater is started and is not in a user use state, a trigger signal is sent to the water mixing assembly to control the circulating water pump to be started.
In a third aspect, a water heater includes the hot water tank of any one of the above.
In a fourth aspect, a controller comprises: a memory for storing a computer program and a processor for executing the computer program to implement the method of controlling the hot water tank of any of the above.
Has the advantages that:
the technical scheme of the invention provides a water heater and a hot water tank, a control method and a controller thereof.
Drawings
Fig. 1 is a schematic structural view of a hot water tank for a water heater according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a hot water tank for a water heater according to another embodiment of the present invention.
FIG. 3 is a flow chart of a method for controlling a hot water tank of a water heater according to an embodiment of the present invention.
Fig. 4 is a flowchart of a method for controlling a hot water tank of a water heater according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a controller according to an embodiment of the present invention.
In the figure:
1-a water tank body; 2-internal circulation means; 21-water outlet pipe; 22-a draft tube; 23-a circulating water pump; 24-a first one-way valve; 25-a water inlet pipe; 26-a second one-way valve; 27-a microswitch; 3-a water heater host; 4-a controller; 41-a memory; 42-processor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention is further illustrated with reference to the following figures and examples.
An embodiment of the present invention provides a hot water tank for a water heater, as shown in fig. 1, including a tank body 1 and an internal circulation device 2, where the internal circulation device 2 includes a water mixing assembly, and the water mixing assembly is used for mixing cold water at a bottom portion and hot water at a top portion in the tank body 1.
In one embodiment, when the hot water tank body 1 of the water heater needs to be mixed, the internal circulation device 2 is opened, and the cold water at the bottom of the tank body 1 is mixed with the hot water at the top.
The embodiment of the invention provides a hot water tank for a water heater, which comprises a tank body and an internal circulation device, wherein the internal circulation device comprises a water mixing assembly, and the water mixing assembly is used for mixing cold water at the bottom and hot water at the top in the tank body to enable the inside of the hot water tank body to self-circulate from top to bottom, so that the problem of water temperature stratification in the tank body can be solved, and the operating efficiency of a heat pump water heater is effectively improved.
As a further improvement to the above-described embodiment, an embodiment of the present invention provides another hot water tank for a water heater, as shown in fig. 2, the hot water tank including: a water tank body 1 and an internal circulation device 2;
the internal circulation device 2 comprises a water mixing assembly, and the water mixing assembly is used for mixing cold water at the bottom and hot water at the top in the water tank body 1.
As an optional implementation manner of the embodiment of the present invention, further, the water mixing assembly may include a circulation water pump 23 and a flow guide pipe 22, one end of the flow guide pipe 22 is connected to the bottom of the water tank body 1, the other end of the flow guide pipe 22 is connected to the top of the water tank body 1, and the circulation water pump 23 mixes cold water at the bottom and hot water at the top of the water tank body 1.
Furthermore, the bottom of the water tank body 1 is provided with a water inlet pipe 25, the top of the water tank body is provided with a water outlet pipe 21, one end of the flow guide pipe 22 is connected to the water inlet pipe 25, the other end of the flow guide pipe 22 is connected to the water outlet pipe 21, and the water mixing assembly enables water to flow out of the water tank body 1 through the water outlet pipe 21 and then flow back to the water tank body from the water inlet pipe 25.
As an optional implementation manner of the embodiment of the present invention, further, to reduce the power of the water heater and reduce the cost, the water circulating pump 23 may be a canned pump.
The canned pump is a sealless pump, the pump and the drive motor are sealed in a pressure vessel filled with the pumped medium, the pressure vessel has only static seals, and a set of electric wires provides a rotating magnetic field and drives the rotor. The structure eliminates a rotating shaft sealing device of the traditional centrifugal pump, so that the leakage can be completely avoided. The common centrifugal pump is driven by connecting an impeller shaft of the pump with an electric shaft through a coupling, so that the impeller and the electric motor rotate together to work.
The selection of the water circulating pump 23 is not specifically limited in the present application, and a person skilled in the art can select the water circulating pump according to actual conditions, which is not described herein again.
Further, when the water outlet of the circulating water pump 23 is connected with the water inlet pipe 25, the internal circulation device 2 further comprises a first one-way valve 24, and the flow direction of the first one-way valve 24 is consistent with that of the circulating water pump 23. The first check valve 24 is installed at the water inlet or the water outlet of the circulating water pump 23.
It should be noted that, when the water outlet of the circulating water pump 23 is connected to the cold water pipe, the second check valve 26 is additionally installed on the cold water pipe, and the medium at the water outlet cannot flow back because the check valve is used to allow the fluid to flow only along the water inlet. Therefore, the second check valve 26 is additionally installed to prevent the running water from being polluted by pumping the water in the water tank body 1 from the cold water pipe into the running water pipe during the operation of the circulating water pump 23.
As an optional implementation manner of the embodiment of the present invention, further, the water mixing assembly is detachably connected to the hot water tank body 1.
When selecting for use muddy water subassembly and hot water tank to dismantle and be connected, if muddy water subassembly in use breaks down, can be convenient for seek the fault reason, in the aspect of the repair, can improve work efficiency. The embodiment of the invention does not limit the installation mode between the water mixing component and the hot water tank, for example, the installation mode can be realized by threads, and the installation mode can be selected by the technical personnel in the field according to the engineering requirements.
Further, in some optional embodiments, the water mixing assembly and the hot water tank body 1 are integrally formed, and if the water mixing assembly is internally arranged inside the hot water tank in the production process of the hot water tank to be integrated, the water mixing assembly can also be installed outside the hot water tank to be integrally formed.
When chooseing for use muddy water subassembly and hot water tank design integrated into one piece, its occupation space is little, can improve the utilization ratio in space.
As an optional implementation manner of this embodiment, in some embodiments, a water flow detection element and a controller are further included, the water flow detection element is used for detecting a water flow state in the water tank body 1, and the water flow detection element may be, but is not limited to, using the micro switch 27. The micro switch 27 may be, but is not limited to, provided on the inlet pipe 25 or the outlet pipe 21. When the user side uses hot water, the water flow microswitch acts and transmits an action signal to the water heater host, and the water heater host determines whether the user side uses the hot water or not by detecting the water flow microswitch signal and accordingly divides the user side into a water use mode (the user side uses the hot water) and a heat preservation mode (the user side does not use the hot water). Specifically, the micro switch sends a detection signal to the controller, so that the controller judges whether the user is using hot water according to the water flow state, when the water heater is started and is in a user non-use state, the circulating water pump 23 is controlled to be started, the water mixing effect inside the hot water tank is improved, and when the water heater is turned off or in a non-heat-preservation mode, the circulating water pump 23 is turned off.
The microswitch is a switch with small contact interval and quick-acting mechanism, which is a contact mechanism for switching by a specified stroke and a specified force and covered by a shell, and has a driving rod outside.
Further, in alternative embodiments, the microswitch 27 may be a water flow switch or a pressure switch.
The working principle of the water flow switch is that when the water flow in a pipeline is larger than the preset set point flow, the magnetic core generates displacement under the action of the water flow and drives the magnetic source to generate a magnetic control action so that the sensor outputs a '1' switch signal, the signal is input into an equipment control system, and the purpose of controlling the water flow is achieved after power amplification. When the water flow in the pipeline is smaller than the preset set point flow, the magnetic core drives the magnetic source to return under the thrust action of the return spring, so that the sensor outputs a '0' switching signal, and the system stops working. When the water flow is higher than or lower than a certain set point, an alarm signal is triggered and output and transmitted to the unit, and the system can make corresponding indication action after acquiring the signal.
The working principle of the pressure switch is as follows: when the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor instantaneously moves, the switch joint is pushed to be switched on or switched off by the connecting guide rod, when the pressure is reduced to or increased to the rated recovery value, the disc is instantaneously reset, the switch automatically resets, or simply, when the measured pressure exceeds the rated value, the free end of the elastic element generates displacement, the switch element is pushed directly or after comparison, the on-off state of the switch element is changed, and the purpose of controlling the measured pressure is achieved. The elastic elements adopted by the pressure switch comprise a single-ring spring tube, a diaphragm box, a corrugated tube and the like.
When the microswitch 27 selects a water flow switch or a pressure switch, the microswitch 27 is arranged on the water inlet pipe 25 or the water outlet pipe 21, when water flow in the pipeline passes through, the microswitch 27 detects the state of the water flow, the controller judges whether the user 4 uses hot water or not according to the state of the water flow, and the circulating water pump 23 is started when the water heater is started and is in a state that the user is not using the water.
The micro switch 27 can also be a target sheet type micro switch 27, the target sheet is inserted into the water pipe, when water flows, the target sheet is impacted, the target sheet is stressed to act, and a related action signal is transmitted to judge that the water flows; the target plate is restored to the original state when no water flow exists. The selection of the microswitch 27 is not particularly limited in the present application, and a person skilled in the art can select the microswitch according to actual situations, and details are not described here.
Further, in some optional embodiments, the hot water tank further includes a controller 4, and the controller 4 is connected to the internal circulation device 2 and is configured to control the on/off of the circulating water pump 23.
The embodiment of the invention provides a hot water tank for a water heater, which comprises a tank body and an internal circulation device, wherein the internal circulation device comprises a water mixing assembly, the water mixing assembly comprises a circulating water pump and a flow guide pipe, the bottom of the tank body is provided with a water inlet pipe, the top of the tank body is provided with a water outlet pipe, one end of the flow guide pipe is connected into the water inlet pipe, the other end of the flow guide pipe is connected into the water outlet pipe, the hot water tank also comprises a water flow detection element and a controller, the water flow detection element is used for detecting the water flow state, the controller judges whether a user uses hot water or not according to the water flow state. The water tank water heater has the advantages that the circulating water pump is started during the operation of the unit heating water, the circulating water pump is sucked from the water outlet pipe of the water tank body to the water inlet pipe, the inside of the hot water tank body is self-circulated from top to bottom, the problem of hot water temperature stratification in the water tank body is solved, and the operation efficiency of the heat pump water heater is effectively improved.
Based on the above hot water tank for a water heater, the present invention provides a control method for a hot water tank for a water heater, as shown in fig. 3, comprising the following steps:
s301: and sending a trigger signal to the water mixing assembly.
S302: the water mixing assembly is started according to the trigger signal, and the cold water at the bottom and the hot water at the top in the water tank body are mixed.
According to the control method for the hot water tank of the water heater, the trigger signal is sent to the water assembly, the water mixing assembly is started according to the trigger signal, cold water at the bottom and hot water at the top in the water tank body are mixed, the operation steps are simple, the execution is convenient, and the running efficiency of the hot water tank of the water heater can be improved.
As a modification of the above embodiment, the embodiment of the present invention provides another control method for a hot water tank of a water heater, which can be implemented by, but is not limited to, the following processes, with reference to fig. 4:
s401: and acquiring the water flow state.
S402: and judging whether the user uses hot water according to the water flow state.
S403: when the water heater is opened and is in a user unused state, a trigger signal is sent to the water mixing assembly:
s404: the water mixing assembly is started according to the trigger signal, and the cold water at the bottom and the hot water at the top in the water tank body are mixed.
The control method for the hot water tank of the water heater provided by the embodiment judges whether the user uses hot water according to the water flow state by acquiring the water flow state, and mixes cold water at the bottom in the water tank body and hot water at the top through the water mixing assembly in the heat preservation mode, so that the water mixing effect inside the water tank is improved, and the layering degree inside the water tank is reduced.
As shown in fig. 5, an embodiment of the present invention provides a controller, where the controller 4 includes:
a memory 41 and a processor 42, wherein the memory 41 is used for storing computer programs, and the processor 42 is used for executing the computer programs so as to realize the control method of the water heater and the hot water tank thereof.
The embodiment of the invention also provides a water heater, which comprises the hot water tank for the water heater in any technical scheme/embodiment. The type of the water heater related to the embodiment of the invention is not limited, for example, the water heater can be a heat pump water heater, a solar water heater, a gas water heater and the like, and in one embodiment, the controller can be internally arranged in the water heater main machine 3 during production and processing of the water heater, or can be added by persons skilled in the art during installation of the water heater main machine 3.
Wherein the hot water tank may be, but is not limited to, a static heating type tank.
The embodiment of the invention provides a controller and a water heater, wherein the water heater comprises the hot water tank provided by the embodiment, and the controller is used for realizing the hot water tank control method of any one of the technical schemes/embodiments. The water tank body is provided with a water tank outlet pipe, a water tank body is arranged in the water tank body, a water tank water inlet pipe is arranged in the water tank body, a water tank water outlet pipe is arranged in the water tank body, a water tank water inlet pipe is arranged in the water tank body. The self-circulation from top to bottom in the water tank body is realized, the temperature stratification of the water tank body is improved, and the operation efficiency of the heat pump water heater is improved.
By using the hot water tank and the water heater provided by the technical scheme of the embodiment of the invention, the energy efficiency improvement effect is shown by comparing the energy efficiency limit value difference of the static heating type heat pump water heater and the circulating heating type heat pump water heater in the national standard GB 29541 once-through 2013 heat pump water heater (device) energy efficiency limit value and energy efficiency grade (the static heating type first-level energy efficiency is 4.2, and the circulating heating type first-level energy efficiency is 4.6).
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, each control module in the embodiments of the present application may be integrated into one processing module, or each control module may exist alone physically, or two or more control modules may be integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "some alternative embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (18)
1. A hot water tank for a water heater, characterized in that: the water tank comprises a water tank body and an internal circulation device, wherein the internal circulation device comprises a water mixing assembly, and the water mixing assembly is used for mixing cold water at the bottom and hot water at the top in the water tank body.
2. The hot water tank as claimed in claim 1, wherein the water mixing assembly comprises a circulating water pump and a flow guide pipe, one end of the flow guide pipe is connected to the bottom of the tank body, the other end of the flow guide pipe is connected to the top of the tank body, and the circulating water pump mixes the cold water at the bottom of the tank body with the hot water at the top of the tank body through the flow guide pipe.
3. The hot water tank as claimed in claim 2, wherein the internal circulation device comprises a water inlet pipe arranged at the bottom of the tank body and a water outlet pipe arranged at the top of the tank body, and the flow guide pipe is connected with the water inlet pipe at one end and the water outlet pipe at the other end.
4. The hot water tank as claimed in claim 3, further comprising a water flow detecting element and a controller;
the water flow detection element is used for detecting the water flow state in the water tank body;
the controller judges whether a user uses hot water according to the water flow state, and controls the circulating water pump to be started when the water heater is started and is in a state that the user does not use the water heater.
5. The hot water tank as claimed in claim 4, wherein the water flow detecting element is a micro switch.
6. The hot water tank as claimed in claim 5, wherein the micro switch is provided on the inlet pipe or the outlet pipe.
7. A hot water tank according to any one of claims 2-6, characterized in that the circulating water pump is a canned pump.
8. The hot water tank as claimed in claim 3, wherein the water mixing assembly causes water to flow from the outlet pipe to the inlet pipe through the flow guide pipe.
9. The hot water tank as claimed in claim 3, wherein when the water outlet of the circulating water pump is connected with the water inlet pipe, the water mixing assembly is further provided with a one-way valve, and the one-way valve is in the same flow direction as the circulating water pump.
10. The hot water tank as claimed in claim 9, wherein the check valve is installed at a water inlet or a water outlet of the circulation water pump.
11. A hot water tank according to claim 5 or 6, characterized in that the micro switch is a water flow switch or a pressure switch.
12. The hot water tank as claimed in any one of claims 1 to 6, wherein the water mixing assembly is detachably connected to the hot water tank body, or the circulating water pump is integrally formed with the hot water tank body.
13. A hot water tank according to any one of claims 2-6, further comprising a controller for controlling the on-time of the circulating water pump.
14. A method of controlling a hot water tank as claimed in any one of claims 1 to 13, comprising the steps of:
sending a trigger signal to the water mixing assembly;
the water mixing assembly is started according to the trigger signal, and mixes cold water at the bottom and hot water at the top in the water tank body.
15. The method of claim 14, wherein: the water mixing assembly comprises a circulating water pump and a flow guide pipe, and is started according to the trigger signal, so that cold water at the bottom and hot water at the top in the water tank body are mixed into the following components: and the circulating water pump mixes the cold water at the bottom and the hot water at the top in the water tank body through the flow guide pipe according to the trigger signal.
16. The method according to claim 14 or 15, characterized in that: before sending the trigger signal to the water mixing assembly, the method further comprises:
acquiring a water flow state;
judging whether the user uses hot water according to the water flow state;
send trigger signal to muddy water subassembly does: when the water heater is started and is not in a user use state, a trigger signal is sent to the water mixing assembly to control the circulating water pump to be started.
17. A water heater comprising a hot water tank as claimed in any one of claims 1 to 13.
18. A controller, comprising: a memory for storing a computer program and a processor for executing the computer program to implement the method of controlling the hot water tank of any one of claims 14-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911154028.XA CN110822711A (en) | 2019-11-22 | 2019-11-22 | Water heater and hot water tank, control method and controller thereof |
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| CN201911154028.XA CN110822711A (en) | 2019-11-22 | 2019-11-22 | Water heater and hot water tank, control method and controller thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393422A (en) * | 2020-08-31 | 2021-02-23 | 浙江中广电器股份有限公司 | Heat pump water heater with uniform water temperature and temperature control method thereof |
| CN112944732A (en) * | 2021-04-15 | 2021-06-11 | 杭州索凡节能科技有限公司 | Automatic temperature adjusting system and temperature adjusting method for air-source heat pump |
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| CN112393422B (en) * | 2020-08-31 | 2025-03-21 | 浙江中广电器集团股份有限公司 | Heat pump water heater with uniform water temperature and temperature control method thereof |
| CN112944732A (en) * | 2021-04-15 | 2021-06-11 | 杭州索凡节能科技有限公司 | Automatic temperature adjusting system and temperature adjusting method for air-source heat pump |
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Application publication date: 20200221 |