CN114811962A - Automatic constant-temperature water mixing system set for bathroom hot water and control method thereof - Google Patents
Automatic constant-temperature water mixing system set for bathroom hot water and control method thereof Download PDFInfo
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- CN114811962A CN114811962A CN202210526262.6A CN202210526262A CN114811962A CN 114811962 A CN114811962 A CN 114811962A CN 202210526262 A CN202210526262 A CN 202210526262A CN 114811962 A CN114811962 A CN 114811962A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 245
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 239000002918 waste heat Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 24
- 239000008399 tap water Substances 0.000 claims description 10
- 235000020679 tap water Nutrition 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000605 extraction Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention discloses a control method of an automatic constant-temperature water mixing system set for bathroom hot water, which comprises a device bearing plate and the automatic constant-temperature water mixing system set, wherein one end of a fourth water suction pump is provided with a fourth water delivery pipeline: the first temperature adjusting module consists of a waste heat recovery machine, an air compressor, a first water pump and a first temperature sensor; a third temperature adjustment module; water flow control module, water flow control module comprises third valve, first valve, second valve and fourth valve, and the heat that produces when preferentially utilizing the air compressor machine to use, the liquid of collocation second suction pump extraction carries out first adjustment heat, simultaneously for the high efficiency that improves hydraulic stability and temperature adjustment, heats water through the water heater, controls the heat supply pipeline of a plurality of connections in proper order through first valve, third valve, second valve and the fourth valve in the water flow control module.
Description
Technical Field
The invention relates to the technical field of bathroom hot water temperature control, in particular to an automatic constant-temperature water mixing system set for bathroom hot water and a control method thereof.
Background
Along with the progress of science and technology, people comparatively attach attention to the health of health, people can effectively clear up the foreign matter on health skin surface through regularly drenching with rain in the time of attaching importance to the health, can effectively improve the health degree of health, to drenching with rain, people are for improving the comfort level of drenching with rain, adjust the temperature when drenching with rain, the temperature is adjusted through artifical manual hot water of mixing and cold water adjustment temperature to the adjustment temperature before, the adjustment mode is comparatively loaded down with trivial details and wastes time and energy, therefore people design out the constant temperature and mix the water system set to drenching with rain, from this adjustable temperature, and can change the temperature of required adjustment according to the user demand.
Chinese utility model patent if CN215723569U4 discloses a water supply system of solar energy and gas is utilized in combination, seamless rational joining through utilizing temperature control solenoid valve and constant temperature to mix the water valve and realize two sets of hot water equipment, make it realize automatic control in using, need not to rely on artifical judgement to come manual operation, the initial stage water yield waste of having avoided relying on artifical judgement to cause, the travelling comfort of using has been realized, also the at utmost has realized the effect of water conservation and energy saving, but can cause the heat current of one of them part to run off through single switching water supply and heating mode, cause the waste of resource.
However, the existing automatic constant-temperature water mixing system is mostly externally connected with various heat and water supply sources in the actual control process, the heat and water supply sources are switched singly, and the heat and water supply sources are fused with the independently connected domestic tap water to complete water temperature regulation, the regulation precision is low, the heat in the unconnected pipelines is lost due to the single regulation mode, the existing requirements are not met, and the bathroom hot water automatic constant-temperature water mixing system and the control method thereof are provided.
Disclosure of Invention
The invention aims to provide an automatic constant-temperature water mixing system set for bathroom hot water and a control method thereof, and aims to solve the problems that the automatic constant-temperature water mixing system set provided in the background art only needs to switch a water supply source to complete heat adjustment when adjusting water temperature, is time-consuming and labor-consuming, and can cause heat loss.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic constant temperature water mixing system set of bathroom hot water and control method thereof, includes device loading board and automatic constant temperature water mixing system set, one side of device loading board front end is provided with the fourth suction pump, the one end of fourth suction pump is provided with fourth water pipeline, and the one end and the fourth suction pump sealing connection of fourth water pipeline, the one end of fourth water pipeline is provided with the shower nozzle, the outside one side of fourth water pipeline is provided with fourth temperature sensor:
the first temperature adjusting module is arranged inside the automatic constant-temperature water mixing system set and consists of a waste heat recovery machine, an air compressor, a first water pump and a first temperature sensor;
the second temperature adjusting module is arranged inside the automatic constant-temperature water mixing system set and consists of a water heater, a second water suction pump and a second temperature sensor;
the third temperature adjusting module is arranged inside the automatic constant-temperature water mixing system set and consists of a third water suction pump and a third temperature sensor;
the water flow control module is arranged in the automatic constant-temperature water mixing system set and consists of a third valve, a first valve, a second valve and a fourth valve;
the control terminal is arranged inside the automatic constant-temperature water mixing system set;
and the transmission module is arranged in the automatic constant-temperature water mixing system set and consists of a second water conveying pipeline, a first water conveying pipeline, a third water conveying pipeline, a fourth water conveying pipeline and a fifth water conveying pipeline.
Preferably, the lower extreme of fourth suction pump is provided with the second valve, one side of second valve lower extreme is provided with the fourth valve, the one end of fourth valve is provided with the third water pipe, the one end of third water pipe is provided with the second suction pump, and all sealing connection between second suction pump, third water pipe and the fourth valve, one side between fourth valve and the second valve is provided with first three valves.
Preferably, a fifth water conveying pipeline is arranged at the other end of the fourth valve, a second three-phase valve is arranged at the other end of the fifth water conveying pipeline, and a fifth temperature sensor is arranged on one side outside the fifth water conveying pipeline.
Preferably, a first valve is arranged at the lower end of the second three-way valve, a first water conveying pipeline is arranged at the lower end of the first valve, and a third temperature sensor is arranged outside the first water conveying pipeline.
Preferably, one end of the first water pipeline is provided with a third water suction pump, and one end of the third water suction pump is provided with a water heater.
Preferably, one side of the third valve is provided with a third valve, one end of the third valve is provided with a first temperature sensor, one end of the first temperature sensor is provided with a first water suction pump, one end of the first water suction pump is provided with a waste heat recovery machine, and one side of the outside of the first temperature sensor is provided with a second water pipeline.
Preferably, one side of the upper end of the third water conveying pipeline is provided with a cooling water conveying pipeline, and one end of the cooling water conveying pipeline is hermetically connected with the third water conveying pipeline.
Preferably, the other end of the cooling water pipeline is provided with a check valve, and two ends of the check valve are respectively connected with the cooling water pipeline and the third water pipeline in a sealing manner.
Preferably, the upper end of one side of the cooling water pipeline is provided with a valve control device, the lower end of one side of the valve control device is provided with a PID calculation device, and one side of the outside of the cooling water pipeline is provided with a fifth valve.
The automatic constant-temperature water mixing system set for bathroom hot water and the control method thereof comprise the following steps:
the method comprises the following steps that firstly, a first water pump is started, problems generated by the use of an air compressor are collected through a waste heat recovery machine, extracted liquid is heated while collected, heated and conveyed into a second water conveying pipeline, and then the temperature is detected through a first temperature sensor;
step two, after the detected temperature is too high, the tap water pumped by the second water pump is neutralized, and after the detected temperature by the fourth temperature sensor is too low, the tap water is started by the water heater, pumped by the third water pump and the temperature is raised;
and step three, judging according to the temperature set by the user, if the temperature is higher or lower than the temperature set by the first temperature sensor, independently controlling the second valve, the valve control device, the third valve and the first valve by the valve control device, adjusting the water delivery amount at the connecting position, and ensuring the stable water delivery amount.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the first temperature adjusting module, the second temperature adjusting module, the third temperature adjusting module, the water flow control module and the transmission module are arranged in the automatic constant-temperature water mixing system set, in the actual adjusting process, the heat generated by the air compressor during use is preferentially utilized to be matched with the liquid pumped by the second water pump for primarily adjusting the heat, meanwhile, in order to improve the stability of water pressure and the high efficiency of water temperature adjustment, water is heated by the water heater and is conveyed by the third water pump, a plurality of connected heat supply pipelines are sequentially controlled by a first valve, a third valve, a second valve and a fourth valve in the water flow control module, the water flow of the corresponding pipeline is controlled by controlling the rotation angles of the first valve, the third valve, the second valve and the fourth valve, so that the temperature can be conveniently adjusted while the heat loss can be avoided.
2. In the invention, the first temperature sensor is arranged at one side outside the second water conveying pipeline, the second temperature sensor is arranged at one side outside the third water conveying pipeline, the fifth temperature sensor is arranged at one side outside the fifth water conveying pipeline, the fourth temperature sensor is arranged at one side outside the fourth water conveying pipeline, in the actual use process, each independent water conveying pipeline has independent temperature in the water conveying process, by detecting the temperature at one end of the shower head and adjusting the water supply at the front end, the overall water temperature is adjusted slowly, after the independent temperature of each pipeline is preferentially detected by the second temperature sensor, the first temperature sensor, the third temperature sensor and the fifth temperature sensor and is calculated by the PID calculating device, the water flow control module is used for adjusting the water outlet quantity of each pipeline, so that the adjusting speed of the water temperature of a user in use can be improved.
3. According to the invention, the cooling water pipeline is arranged at one end of the third water pipeline, so that when external tap water is pumped by the second water pump in the actual use process, one part of the external tap water is conveyed by the cooling water pipeline and is attached to the lower end of the device bearing plate, and then the external tap water is contacted with the device through the cooling water pipeline, so that the temperature of the lower end of the device bearing plate is reduced, the deformation of the device caused by long-time high temperature is avoided, and the absorbed heat can be conveyed into the third water pipeline again, so that the waste of the heat is avoided.
Drawings
FIG. 1 is a schematic view of the overall external structure of the present invention;
fig. 2 is a schematic view of an automatic constant temperature water mixing system according to the present invention;
FIG. 3 is a bottom view of the outer structure of the device carrier plate of the present invention;
fig. 4 is a partially enlarged view of the area a in fig. 1 according to the present invention.
In the figure: 1. a device carrier plate; 2. a third water pump; 3. a first water pump; 4. a second water pump; 5. a waste heat recovery machine; 6. an air compressor; 7. a water heater; 8. a shower head; 9. a second water delivery pipeline; 10. a first water delivery pipe; 11. a third water delivery pipeline; 12. a fourth water delivery pipeline; 13. a fourth water pump; 14. a second valve; 15. a fourth valve; 16. a third valve; 17. a first valve; 18. a second temperature sensor; 19. a first temperature sensor; 20. a third temperature sensor; 21. a fifth temperature sensor; 22. a fourth temperature sensor; 23. a first third valve; 24. a second third valve; 25. a valve control device; 26. a PID calculation device; 27. cooling the water delivery pipeline; 28. a fifth valve; 29. a one-way valve; 30. a fifth water conveying pipeline; 31. a first temperature adjustment module; 32. a second temperature adjustment module; 33. a third temperature adjustment module; 34. a water flow control module; 35. a control terminal; 36. and a transmission module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an embodiment of the present invention is shown: the utility model provides an automatic constant temperature water mixing system set of bathroom hot water and control method thereof, includes device loading board 1 and automatic constant temperature water mixing system set, and one side of device loading board 1 front end is provided with fourth suction pump 13, and the one end of fourth suction pump 13 is provided with fourth water pipe 12, and the one end and the fourth suction pump 13 sealing connection of fourth water pipe 12, and the one end of fourth water pipe 12 is provided with drenching with rain shower nozzle 8, and one side of fourth water pipe 12 outside is provided with fourth temperature sensor 22:
the first temperature adjusting module 31 is arranged inside the automatic constant-temperature water mixing system set, and the first temperature adjusting module 31 consists of a waste heat recovery machine 5, an air compressor 6, a first water pump 3 and a first temperature sensor 19;
the second temperature adjusting module 32 is arranged inside the automatic constant-temperature water mixing system set, and the second temperature adjusting module 32 consists of a water heater 7, a second water suction pump 4 and a second temperature sensor 18;
the third temperature adjusting module 33 is arranged inside the automatic constant-temperature water mixing system set, and the third temperature adjusting module 33 consists of a third water suction pump 2 and a third temperature sensor 20;
the water flow control module 34 is arranged inside the automatic constant-temperature water mixing system set, and the water flow control module 34 consists of a third valve 16, a first valve 17, a second valve 14 and a fourth valve 15;
the control terminal 35 is arranged inside the automatic constant-temperature water mixing system set;
and the transmission module 36 is arranged inside the automatic constant-temperature water mixing system set, and the transmission module 36 consists of a second water pipeline 9, a first water pipeline 10, a third water pipeline 11, a fourth water pipeline 12 and a fifth water pipeline 30.
Referring to fig. 1 and 2, a second valve 14 is disposed at a lower end of a fourth water pump 13, a fourth valve 15 is disposed at one side of the lower end of the second valve 14, a third water pipe 11 is disposed at one end of the fourth valve 15, a second water pump 4 is disposed at one end of the third water pipe 11, the second water pump 4, the third water pipe 11 and the fourth valve 15 are all connected in a sealing manner, a first third valve 23 is disposed at one side between the fourth valve 15 and the second valve 14, and during actual use, the flow rate of the connecting pipe is adjusted through the second valve 14.
Referring to fig. 1 and 2, a fifth water pipe 30 is disposed at the other end of the fourth valve 15, a second third valve 24 is disposed at the other end of the fifth water pipe 30, a fifth temperature sensor 21 is disposed at one side of the outside of the fifth water pipe 30, and the second water pipe 9 and the first water pipe 10 can be mixed by connecting the fifth water pipe 30.
Referring to fig. 1 and 2, a first valve 17 is disposed at a lower end of the second third valve 24, a first water pipe 10 is disposed at a lower end of the first valve 17, a third temperature sensor 20 is disposed outside the first water pipe 10, and the delivery rates of the first water pump 3 and the third water pump 2 can be controlled by adjusting the first valve 17.
Referring to fig. 1 and 2, a third water pump 2 is disposed at one end of the first water pipe 10, and a water heater 7 is disposed at one end of the third water pump 2, so that the heat supply capacity is prevented from being low due to the low heat recovered by the waste heat recovery machine 5 by the heat supply of the water heater 7.
Referring to fig. 1 and 2, a third valve 16 is disposed on one side of the second third valve 24, a first temperature sensor 19 is disposed at one end of the third valve 16, a first water pump 3 is disposed at one end of the first temperature sensor 19, a waste heat recovery machine 5 is disposed at one end of the first water pump 3, a second water pipe 9 is disposed on one side of the outside of the first temperature sensor 19, and the orientation of the first water pump 3 can be adjusted through the third valve 16.
Referring to fig. 1 and 3, a cooling water pipe 27 is disposed at one side of the upper end of the third water pipe 11, and one end of the cooling water pipe 27 is hermetically connected to the third water pipe 11, so that the cooling water pipe 27 is attached to the device carrying plate l, and performs heat exchange on the position of the device carrying plate 1 where heat is generated.
Referring to fig. 1 and 3, a check valve 29 is disposed at the other end of the cooling water pipe 27, and two ends of the check valve 29 are respectively connected to the cooling water pipe 27 and the third water pipe 11 in a sealing manner, so that the flow direction of the liquid in the cooling water pipe 27 is single by the limitation of the check valve 29, and the liquid is prevented from flowing slowly in the cooling water pipe 27.
Referring to fig. 1, 3 and 4, a valve control device 25 is disposed at an upper end of one side of the cooling water pipe 27, a PID calculation device 26 is disposed at a lower end of one side of the valve control device 25, a fifth valve 28 is disposed at an outer side of the cooling water pipe 27, and a flow rate of the pipe in the cooling water pipe 27 can be directly adjusted by the fifth valve 28.
The automatic constant-temperature water mixing system set for bathroom hot water and the control method thereof comprise the following steps:
the method comprises the following steps that firstly, a first water suction pump 3 is started, problems generated by the use of an air compressor 6 are collected through a waste heat recovery machine 5, extracted liquid is heated while collected, heated and conveyed into a second water conveying pipeline 9, and then the temperature is detected through a first temperature sensor 19;
step two, after the detected temperature is too high, the tap water pumped by the second water pump 4 is neutralized, and after the detected temperature by the fourth temperature sensor 22 is too low, the tap water is started by the water heater 7, pumped by the third water pump 2 and raised in temperature;
and step three, judging according to the temperature set by the user, if the temperature is higher or lower than the temperature set by the first temperature sensor 19, independently controlling the second valve 14, the valve control device 25, the third valve 16 and the first valve 17 by the valve control device 25, adjusting the water delivery amount at the connecting position, and ensuring the stable water delivery amount.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides an automatic constant temperature water mixing system set of bathroom hot water, includes device loading board (1) and automatic constant temperature water mixing system set, one side of device loading board (1) front end is provided with fourth suction pump (13), the one end of fourth suction pump (13) is provided with fourth water pipeline (12), and the one end and fourth suction pump (13) sealing connection of fourth water pipeline (12), its characterized in that:
the first temperature adjusting module (31) is arranged inside the automatic constant-temperature water mixing system set, and the first temperature adjusting module (31) consists of a waste heat recovery machine (5), an air compressor (6), a first water suction pump (3) and a first temperature sensor (19);
the second temperature adjusting module (32) is arranged inside the automatic constant-temperature water mixing system set, and the second temperature adjusting module (32) consists of a water heater (7), a second water suction pump (4) and a second temperature sensor (18);
the third temperature adjusting module (33) is arranged inside the automatic constant-temperature water mixing system set, and the third temperature adjusting module (33) consists of a third water pump (2) and a third temperature sensor (20);
the water flow control module (34) is arranged inside the automatic constant-temperature water mixing system set, and the water flow control module (34) consists of a third valve (16), a first valve (17), a second valve (14) and a fourth valve (15);
and the control terminal (35) is arranged inside the automatic constant-temperature water mixing system set.
2. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 1, characterized in that: the lower extreme of fourth suction pump (13) is provided with second valve (14), one side of second valve (14) lower extreme is provided with fourth valve (15), the one end of fourth valve (15) is provided with third water pipeline (11), the one end of third water pipeline (11) is provided with second suction pump (4), and all sealing connection between second suction pump (4), third water pipeline (11) and fourth valve (15).
3. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 2, characterized in that: the other end of the fourth valve (15) is provided with a fifth water conveying pipeline (30), the other end of the fifth water conveying pipeline (30) is provided with a second third valve (24), and one side of the outside of the fifth water conveying pipeline (30) is provided with a fifth temperature sensor (21).
4. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 3, characterized in that: the lower end of the second three-way valve (24) is provided with a first valve (17), the lower end of the first valve (17) is provided with a first water conveying pipeline (10), and a third temperature sensor (20) is arranged outside the first water conveying pipeline (10).
5. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 4, wherein: one end of the first water pipeline (10) is provided with a third water suction pump (2), and one end of the third water suction pump (2) is provided with a water heater (7).
6. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 5, wherein: one side of the third valve (24) is provided with a third valve (16), one end of the third valve (16) is provided with a first temperature sensor (19), one end of the first temperature sensor (19) is provided with a first water suction pump (3), and one end of the first water suction pump (3) is provided with a waste heat recovery machine (5).
7. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 6, wherein; one side of the upper end of the third water conveying pipeline (11) is provided with a cooling water conveying pipeline (27), and one end of the cooling water conveying pipeline (27) is hermetically connected with the third water conveying pipeline (11).
8. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 7, characterized in that: the other end of the cooling water pipeline (27) is provided with a check valve (29), and two ends of the check valve (29) are respectively connected with the cooling water pipeline (27) and the third water pipeline (11) in a sealing manner.
9. The automatic constant-temperature water mixing system set for bathroom hot water according to claim 8, characterized in that: the upper end of one side of the cooling water pipeline (27) is provided with a valve control device (25), and the lower end of one side of the valve control device (25) is provided with a PID calculation device (26).
10. The control method of the bathroom hot water automatic constant-temperature water mixing system set based on claim 9 is characterized in that: the method comprises the following steps:
the method comprises the following steps that firstly, a first water suction pump (3) is started, problems generated by the use of an air compressor (6) are collected through a waste heat recovery machine (5), extracted liquid is heated while collected, heated and conveyed into a second water conveying pipeline (9), and then the temperature is detected through a first temperature sensor (19);
step two, after the detected temperature is too high, the tap water pumped by the second water pump (4) is neutralized, and after the detected temperature by the fourth temperature sensor (22) is too low, the tap water is started by the water heater (7), pumped by the third water pump (2) and raised in temperature;
and step three, judging according to the temperature set by the user, if the temperature is higher or lower than the temperature set by the first temperature sensor (19), independently controlling the second valve (14), the valve control device (25), the third valve (16) and the first valve (17) by the valve control device (25), adjusting the water delivery amount at the connecting position, and ensuring the stable water delivery amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210526262.6A CN114811962B (en) | 2022-05-13 | 2022-05-13 | Automatic constant-temperature water mixing system set for bathroom hot water and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210526262.6A CN114811962B (en) | 2022-05-13 | 2022-05-13 | Automatic constant-temperature water mixing system set for bathroom hot water and control method thereof |
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| CN114811962A true CN114811962A (en) | 2022-07-29 |
| CN114811962B CN114811962B (en) | 2024-01-19 |
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| JP2002130819A (en) * | 2000-10-30 | 2002-05-09 | Matsushita Electric Ind Co Ltd | Heat pump type water heater system |
| CN201043801Y (en) * | 2006-11-17 | 2008-04-02 | 江苏华扬新能源有限公司 | Heat pump water heater |
| CN203949361U (en) * | 2014-06-27 | 2014-11-19 | 济南国海能源科技有限公司 | A kind of intelligent air energy domestic hot-water produces system |
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| Publication number | Publication date |
|---|---|
| CN114811962B (en) | 2024-01-19 |
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