CN211876356U - Bathing water preparing system - Google Patents

Abstract

The utility model relates to an air compressor machine waste heat recovery technical field discloses a system is prepared to bathing water, and it includes: the water storage system comprises a cold water tank and a hot water tank, the cold water tank and the hot water tank are both communicated with a tap water source, and a heat exchanger is arranged in the hot water tank; the heating system comprises an air compressor and a heat pump unit which are connected in parallel, the air compressor is communicated with the heat exchanger through a pipeline to form a first heating subsystem, and the heat pump unit is communicated with the heat exchanger through a pipeline to form a second heating subsystem; and the water supply system comprises a water supply pipe and a water supply pump, and one end of the water supply pipe is communicated with the bathroom and communicated with the water outlets of the cold water tank and the hot water tank. The utility model provides a system is prepared to bathing water utilizes the unnecessary heat heating bathing water that produces in the air compressor machine working process, need not consume disposable energy such as natural gas, coal, and no direct pollutant discharges, and energy-conservation, environmental protection advantage are obvious, and this bathing water is prepared system's running cost and is hanged down, and economic benefits is showing.

Description

Bathing water preparing system

Technical Field

The utility model relates to an air compressor machine waste heat recovery technical field especially relates to a system is prepared to bathing water.

Background

The coal mine bathing hot water consumption is large, and the bathing water temperature is generally controlled to be 40-43 ℃. At present, most of bath water is prepared by boilers which are divided into coal-fired boilers, gas-fired boilers, electric boilers and the like. However, the coal-fired boiler has the problems of low thermal efficiency, difficult standard flue gas emission, serious resource waste and the like, and the coal-fired boiler has more and more strict requirements on the coal-fired boiler in various provinces and cities, and the bath water coal-fired boiler is mostly in the required dismantling range. The gas-fired boiler has the problems of high operating cost, high nitrogen oxide emission and the like, and the stable supply of natural gas resources is more and more difficult to guarantee as the coal-fired boiler is continuously replaced by the gas-fired boiler. In addition, during the debugging and starting processes, the gas-fired boiler is easy to have explosion accidents and has potential safety hazards. Although the electric boiler operates relatively stably and safely, its application is limited by capacity and the operation cost is higher than that of the gas boiler.

The air compressor is a necessary power device for producing and conveying compressed air in a mine, is generally arranged on the mine and conveys the compressed air to the underground through a pipeline. At present, the most used screw air compressors are used in coal mines in China, only about 20% of electric energy consumed by the air compressors is converted into air potential energy in the operation process, and the rest about 80% of electric energy is converted into heat energy and finally discharged into the air in a water cooling or air cooling mode, so that a great deal of waste of the heat energy is caused.

SUMMERY OF THE UTILITY MODEL

Based on above, an object of the utility model is to provide a system is prepared to bathing water to solve the bathing water under the prior art and prepare the technical problem that the equipment exists inefficiency, with high costs and have the potential safety hazard.

In order to achieve the purpose, the utility model adopts the following technical proposal:

there is provided a bath water preparing system comprising:

the water storage system comprises a cold water tank and a hot water tank, the cold water tank and the hot water tank are both communicated with a tap water source through pipelines, and a heat exchanger is arranged in the hot water tank;

the heating system comprises an air compressor and a heat pump unit, the air compressor is communicated with the heat exchanger through a pipeline to form a first heating subsystem, and the heat pump unit is communicated with the heat exchanger through a pipeline to form a second heating subsystem;

the water supply system comprises a water supply pipe and a water supply pump, one end of the water supply pipe is communicated with the bathroom, the other end of the water supply pipe is divided into a first water supply branch pipe and a second water supply branch pipe, the first water supply branch pipe is communicated with the water outlet of the cold water tank, the second water supply branch pipe is communicated with the water outlet of the hot water tank, and the water supply pump is installed on the water supply pipe.

Preferably, the heating system further comprises:

one end of the circulating water return pipe is communicated with the water outlet of the heat exchanger, the other end of the circulating water return pipe is divided into a first circulating water return branch pipe and a second circulating water return branch pipe, the first circulating water return branch pipe is communicated with the water inlet of the air compressor, and the second circulating water return branch pipe is communicated with the water inlet of the heat pump unit;

and one end of the circulating water supply pipe is communicated with the water inlet of the heat exchanger, the other end of the circulating water supply pipe is divided into a first circulating water supply branch pipe and a second circulating water supply branch pipe, the first circulating water supply branch pipe is communicated with the water outlet of the air compressor, and the second circulating water supply branch pipe is communicated with the water outlet of the heat pump unit.

Preferably, the heating system further comprises a circulating water pump, and the circulating water pump is mounted on one side, close to the hot water tank, of the circulating water return pipe.

Preferably, a thermocouple is installed in the hot water tank and used for detecting the water temperature, the thermocouple is electrically connected with the circulating water pump, and when the water temperature is higher than the set water temperature, the circulating water pump stops working.

Preferably, the air compressor comprises an air compressor and an air compressor heat recovery device which are connected in series, and a water inlet and a water outlet of the air compressor heat recovery device are respectively communicated with the first circulating water return branch pipe and the first circulating water supply branch pipe.

Preferably, the water supply system further includes a temperature-controlled proportional regulating valve installed at a branch of the water supply pipe for regulating a temperature of the supplied water.

Preferably, the water storage system further comprises a water inlet pipe, one end of the water inlet pipe is communicated with a tap water source, the other end of the water inlet pipe is divided into a first water inlet branch pipe and a second water inlet branch pipe, the first water inlet branch pipe is communicated with a water inlet of the cold water tank, and the second water inlet branch pipe is communicated with a water inlet of the hot water tank.

Preferably, a first water inlet electromagnetic valve is arranged on the first water inlet branch pipe, a first water level meter is arranged in the cold water tank, the first water level meter is electrically connected with the first water inlet electromagnetic valve, and when the water level in the cold water tank is higher than a set value, the first water inlet electromagnetic valve is closed.

Preferably, a second water inlet solenoid valve is arranged on the second water inlet branch pipe, a second water level meter is arranged in the hot water tank, the second water level meter is electrically connected with the second water inlet solenoid valve, and when the water level in the hot water tank is higher than a set value, the second water inlet solenoid valve is closed.

Preferably, the heat exchanger is a closed self-cleaning heat exchanger.

The utility model has the advantages that:

the utility model provides a system is prepared to bathing water utilizes the unnecessary heat heating bathing water that produces in the air compressor machine working process, only needs to consume a small amount of electric energy, does not need to consume disposable energy such as natural gas, coal, and no direct pollutant discharges, and energy-conservation, environmental protection advantage are obvious. The bath water preparation system only contains a small amount of electricity, labor and operation and maintenance costs, the annual operation cost is 20% of that of a coal-fired boiler and 15% of that of a gas-fired boiler, and the economic benefit is remarkable. And the power parts that this bathing water prepares the system adopts only air source heat pump set and water pump, are mature equipment, and work is safe, reliable, and the device adopts two kinds of complementary mutual guarantor of heat source of air compressor machine waste heat and heat pump set, has improved the reliability of bathing water supply greatly, and air compressor machine waste heat resource is reliable and stable, the priority utilizes.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic diagram of a bath water preparing system according to an embodiment of the present invention.

In the figure: 1. a cold water tank; 2. a hot water tank; 3. a heat exchanger; 4. an air compressor; 5. a heat pump unit; 6. an air compressor heat recovery device; 7. a water supply pipe; 8. a water supply pump; 9. a first water supply branch pipe; 10. a second water supply branch pipe; 11. a temperature control proportional regulating valve; 12. a circulating water return pipe; 13. a first circulating water return branch pipe; 14. a second circulating water return branch pipe; 15. a circulating water supply pipe; 16. a first circulating water supply branch pipe; 17. a second circulating water supply branch pipe; 18. a water circulating pump; 19. a thermocouple; 20. a water inlet pipe; 21. a first water inlet branch pipe; 22. a second water inlet branch pipe; 23. a first water inlet solenoid valve; 24. a first water level gauge; 25. a second water inlet solenoid valve; 26. a second water gauge; 27. a water inlet filter; 28. a water inlet butterfly valve; 29. a water inlet butterfly valve of the cold water tank; 30. a water inlet butterfly valve of the hot water tank; 31. a circulating water return butterfly valve; 32. a circulating water supply butterfly valve; 33. an air compressor water inlet filter; 34. an air compressor water inlet butterfly valve; 35. the air compressor enters the water seal head; 36. the water outlet sealing head of the air compressor; 37. a water outlet butterfly valve of the air compressor; 38. a heat pump water inlet filter; 39. a heat pump water inlet butterfly valve; 40. a heat pump water inlet sealing head; 41. a heat pump water outlet sealing head; 42. a heat pump water outlet butterfly valve; 43. a water outlet butterfly valve of the cold water tank; 44. the hot-water tank goes out water butterfly valve.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the present embodiment provides a bath water preparing system, which includes a water storage system, a heating system, and a water supply system. The water storage system is used for storing water for bathing and comprises a cold water tank 1 and a hot water tank 2, a heat exchanger 3 is installed in the hot water tank 2, and the heat exchanger 3 is used for heating water in the hot water tank 2. The heating system comprises an air compressor 4 and a heat pump unit 5, the air compressor 4 is communicated with the heat exchanger 3 through a pipeline to form a first heating subsystem, the heat pump unit 5 is communicated with the heat exchanger 3 through a pipeline to form a second heating subsystem, and the first heating subsystem and the second heating subsystem are arranged in parallel. Circulating heating water flows in the first heating subsystem and the second heating subsystem, and the circulating heating water is subjected to heat exchange with water in the hot water tank 2 through the pipe wall of the heat exchanger 3 in the heat exchanger 3, so that a heating effect is achieved. The water supply system comprises a water supply pipe 7 and a water supply pump 8, one end of the water supply pipe 7 is communicated with the bathroom, the other end of the water supply pipe 7 is communicated with the water outlets of the cold water tank 1 and the hot water tank 2, and the water supply pump 8 is installed on the water supply pipe 7 and is used for pressurizing and pumping the bath water with proper temperature after the cold water and the hot water are mixed into the bathroom.

In this embodiment, the water storage system further includes a water inlet pipe 20, and the water inlet pipe 20 is communicated with both the cold water tank 1 and the hot water tank 2, and is used for supplying tap water to the cold water tank 1 and the hot water tank 2. Specifically, one end of the water inlet pipe 20 is communicated with a tap water source, and the other end of the water inlet pipe is divided into two branch pipes, namely a first water inlet branch pipe 21 and a second water inlet branch pipe 22, wherein the first water inlet branch pipe 21 is communicated with a water inlet of the cold water tank 1, and the second water inlet branch pipe 22 is communicated with a water inlet of the hot water tank 2. The end of the inlet pipe 20 near the source of tap water is fitted with an inlet filter 27 and an inlet butterfly valve 28, the inlet filter 27 being fitted upstream of the inlet butterfly valve 28. The water inlet filter 27 is used for filtering inlet water to ensure the cleanness of the inlet water, and the water inlet butterfly valve 28 is used for controlling the on-off of a main water inlet passage. Furthermore, a cold water tank water inlet butterfly valve 29 and a hot water tank water inlet butterfly valve 30 are respectively arranged on the first water inlet branch pipe 21 and the second water inlet branch pipe 22, and the cold water tank water inlet butterfly valve 29 and the hot water tank water inlet butterfly valve 30 are respectively used for controlling the on-off of the water inlet passages of the cold water tank 1 and the hot water tank 2. In a normal state, the water inlet butterfly valve 28, the cold water tank water inlet butterfly valve 29 and the hot water tank water inlet butterfly valve 30 are all in a normally open state.

Furthermore, a first water inlet solenoid valve 23 is mounted on the first water inlet branch pipe 21, and the first water inlet solenoid valve 23 is mounted downstream of the cold water tank water inlet butterfly valve 29. A first water level gauge 24 is installed in the cold water tank 1, and a first water inlet electromagnetic valve 23 is electrically connected with the first water level gauge 24 to form water inlet feedback, so that automatic water supplement of the cold water tank 1 is realized. The first water level meter 24 detects the water level in the cold water tank 1 in real time, when the water level in the cold water tank 1 is higher than a set value, the first water inlet electromagnetic valve 23 is closed, the cold water tank 1 stops water supplement, the water level continuously drops along with the continuous consumption of bathing water, and when the water level is lower than the set value, the first water inlet electromagnetic valve 23 is opened, and the cold water tank 1 starts water supplement. Through the feedback mechanism, the water level in the cold water tank 1 can be maintained at a certain water level height, and the supply of cold water during bathing is ensured. Preferably, the first water level gauge 24 is a cable float ball which can be lifted or lowered along with the change of the water level height, so that the water level height value is fed back to the first water inlet solenoid valve 23, and the water level gauge is simple in principle and reliable in operation.

The hot water tank 2 has a structure similar to that of the cold water tank 1, and a second water inlet solenoid valve 25 is installed on the second water inlet branch pipe 22, and the second water inlet solenoid valve 25 is installed downstream of the hot water tank water inlet butterfly valve 30. A second water level gauge 26 is installed in the hot water tank 2, and the second water inlet solenoid valve 25 is electrically connected with the second water level gauge 26 to form water inlet feedback, so as to realize automatic water supplement of the hot water tank 2. The second water inlet solenoid valve 25 is closed or opened according to a water level height value detected by the second water level gauge 26, so that the water level in the hot water tank 2 is maintained at a certain height to ensure the supply of hot water during bathing. Preferably, the second level gauge 26 is a cable float ball which is simple in principle and reliable in operation.

Further, a thermocouple 19 is installed in the hot water tank 2, and the thermocouple 19 is used for monitoring the temperature of water in the hot water tank 2 in real time. The thermocouple 19 is electrically connected to a heating system and constitutes a heating feedback to control the water level in the hot water tank 2 in real time, and when the water temperature is too low, the heating system operates to heat the water in the hot water tank 2, and when the water temperature reaches a set temperature, the heating system is turned off.

The water in the hot water tank 2 is heated through the heat exchanger 3, the heat exchanger 3 is of a tubular structure, heating circulating water flows in the heat exchanger, and the heating circulating water transfers heat to the outside through the pipe wall of the heat exchanger 3 so as to heat the water in the hot water tank 2. In this embodiment, the heat exchanger 3 is preferably a closed self-cleaning heat exchanger, the closed self-cleaning heat exchanger is composed of a water inlet pipe, a coil pipe, a water return pipe and a bracket, the coil pipe is made of stainless steel pipe, the heat transfer performance is good, the coil pipe is spiral, the heating circulating water circulating in the pipe is softened water, and the medium outside the pipe is tap water. The coil pipe can vibrate because of the change of inside and outside medium temperature of pipe, moreover because incrustation scale and stainless steel expansion coefficient are different, the incrustation scale that the coil pipe surface formed can drop by oneself, can effectively avoid the incrustation scale accumulation.

The air compressor 4 and the heat pump unit 5 in the heating system are arranged in parallel, and the air compressor 4 and the heat pump unit 5 respectively form a first heating subsystem and a second heating subsystem with the heat exchanger 3 through pipelines. The first heating subsystem heats the circulating water by utilizing the heat in the high-temperature lubricating oil in the air compressor 4, thereby indirectly heating the water in the hot water tank 2. The second heating subsystem heats circulating water by utilizing heat generated by the heat pump unit 5, thereby indirectly heating water in the hot water tank 2. The two heat sources mutually guarantee that the device preferentially selects the heat in the high-temperature lubricating oil of the air compressor 4 when the device normally works, and the heat pump unit 5 is started when the air compressor 4 stops working.

In the present embodiment, the heat exchanger 3 is communicated with the air compressor 4 and the heat pump unit 5 through a circulating water return pipe 12 and a circulating water supply pipe 15. Specifically, one end of the circulating water return pipe 12 is communicated with a water outlet of the heat exchanger 3, the other end of the circulating water return pipe is divided into two branch pipes, namely a first circulating water return branch pipe 13 and a second circulating water return branch pipe 14, the first circulating water return branch pipe 13 is communicated with a water inlet of the air compressor 4, and the second circulating water return branch pipe 14 is communicated with a water inlet of the heat pump unit 5. One end of the circulating water supply pipe 15 is communicated with a water inlet of the heat exchanger 3, the other end of the circulating water supply pipe is divided into two branch pipes, namely a first circulating water supply branch pipe 16 and a second circulating water supply branch pipe 17, the first circulating water supply branch pipe 16 is communicated with a water outlet of the air compressor 4, and the second circulating water supply branch pipe 17 is communicated with a water outlet of the heat pump unit 5.

And a circulating water pump 18 and a circulating water return butterfly valve 31 are arranged at one end of the circulating water return pipe 12 close to the heat exchanger 3. The circulating water pump 18 is used for providing power for circulating water to flow, the circulating water pump 18 is electrically connected with the thermocouple 19, a water temperature value detected by the thermocouple 19 is fed back to the circulating water pump 18 in real time, when the water temperature is higher than a set temperature, the circulating water pump 18 is closed, and when the water temperature is lower than the set value, the circulating water pump 18 is opened so as to ensure that the water temperature in the hot water tank 2 is maintained to be higher than the set temperature. The circulating water return butterfly valve 31 is installed on the upstream of the circulating water pump 18 on the circulating water return pipe 12 and used for controlling the on-off of a circulating water return passage, and when the device works normally, the circulating water return butterfly valve 31 is in a normally open state.

The circulating water supply pipe 15 is provided with a circulating water supply butterfly valve 32 at one end close to the heat exchanger 3, the circulating water supply butterfly valve 32 is used for controlling the on-off of a circulating water supply passage, and when the device works normally, the circulating water supply butterfly valve 32 is in a normally open state.

In the first heating subsystem, an air compressor water inlet filter 33, an air compressor water inlet butterfly valve 34 and an air compressor water inlet sealing head 35 are sequentially installed on one side, close to the air compressor 4, of the first circulating water return branch pipe 13. Air compressor machine water filter 33 is used for filtering the circulating water that gets into air compressor machine 4, prevents that the impurity in the circulating water from blockking up air compressor machine 4 internals and causing air compressor machine 4 trouble. The air compressor intake butterfly valve 34 is used to control the on/off of the passage of the circulating water entering the air compressor 4. The air compressor water inlet sealing head 35 is used for ensuring the sealing property of the connection between the first circulating water return branch pipe 13 and the water inlet of the air compressor 4 and preventing water leakage. Preferably, the air compressor machine sealing head 35 that intakes chooses the soft joint of rubber for use, and the soft joint of rubber has simple structure, sealed reliable and stable advantage of chemical property under high temperature.

An air compressor water outlet sealing head 36 and an air compressor water outlet butterfly valve 37 are sequentially arranged on one side of the first circulating water supply branch pipe 16 close to the air compressor 4. The air compressor water outlet sealing head 36 is used for ensuring the sealing property between the first circulating water supply branch pipe 16 and the water outlet of the air compressor 4, and preferably, the air compressor water outlet sealing head 36 is a rubber soft joint which is reliable in sealing and stable in chemical property. The air compressor water outlet butterfly valve 37 is used for controlling the on-off of the passage of the circulating water flowing out of the air compressor 4.

Further, the first heating subsystem further comprises an air compressor heat recovery device 6, the air compressor heat recovery device 6 is connected with the air compressor 4 in series, and a water inlet and a water outlet of the air compressor heat recovery device 6 are respectively communicated with the first circulating water return branch pipe 13 and the first circulating water supply branch pipe 16. The air compressor heat recovery device 6 is a heat exchange device, and high-temperature lubricating oil in the air compressor 4 flows into the air compressor heat recovery device 6 and exchanges heat with circulating water in the air compressor heat recovery device, so that heating of the circulating water and cyclic utilization of waste heat of the air compressor 4 are realized.

In the second heating subsystem, a heat pump water inlet filter 38, a heat pump water inlet butterfly valve 39 and a heat pump water inlet sealing head 40 are sequentially arranged on one side, close to the heat pump unit 5, of the second circulating water return branch pipe 14. The heat pump water inlet filter 38 is used for filtering circulating water entering the heat pump unit 5, and prevents impurities in the circulating water from blocking internal components of the heat pump unit 5 to cause failure of the heat pump unit 5. The heat pump water inlet butterfly valve 39 is used for controlling the on-off of the passage of circulating water entering the heat pump unit 5. The heat pump water inlet sealing head 40 is used for ensuring the connection tightness between the second circulating water return branch pipe 14 and the water inlet of the heat pump unit 5 and preventing water leakage. Preferably, the heat pump water inlet sealing head 40 is a rubber soft joint, and the rubber soft joint has the advantages of simple structure, reliable sealing and stable chemical property at high temperature.

A heat pump water outlet sealing head 41 and a heat pump water outlet butterfly valve 42 are sequentially arranged on one side of the second circulating water supply branch pipe 17 close to the heat pump unit 5. The heat pump water outlet sealing head 41 is used for ensuring the sealing property between the second circulating water supply branch pipe 17 and the water outlet of the heat pump unit 5, and preferably, the heat pump water outlet sealing head 41 is a rubber soft joint which is reliable in sealing and stable in chemical property. The heat pump water outlet butterfly valve 42 is used for controlling the on-off of the passage of the circulating water flowing out of the heat pump unit 5.

In this embodiment, when the bath water preparing system is operating normally, the first heating subsystem is preferably used to heat the water in the hot water tank 2. At this time, the circulating water return butterfly valve 31, the air compressor water inlet butterfly valve 34, the air compressor water outlet butterfly valve 37 and the circulating water supply butterfly valve 32 are all opened, the heat pump water inlet butterfly valve 39 and the heat pump water outlet butterfly valve 42 are both closed, circulating water flowing out of the heat exchanger 3 flows into the air compressor heat recovery device 6 and is heated by high-temperature lubricating oil in the air compressor 4 in the air compressor heat recovery device 6, and the heated circulating water flows back into the heat exchanger 3, so that heating of water in the hot water tank 2 is realized.

When the air compressor 4 is stopped, the water in the hot water tank 2 is heated using the second heating subsystem. At the moment, the heat pump unit 5, the circulating water return butterfly valve 31, the heat pump water inlet butterfly valve 39, the heat pump water outlet butterfly valve 42 and the circulating water supply butterfly valve 32 are all opened, the air compressor water inlet butterfly valve 34 and the air compressor water outlet butterfly valve 37 are both closed, circulating water flowing out of the heat exchanger 3 flows into the heat pump unit 5 and is heated by the heat pump unit 5, and the heated circulating water flows back into the heat exchanger 3 so as to heat water in the hot water tank 2.

The water supply system is communicated with the water storage system and the bathroom through a water supply pipe 7, and the bath water with proper temperature is pumped into the bathroom through a water supply pump 8. Specifically, one end of the water supply pipe 7 is communicated with the bathroom, and the other end is divided into two paths, namely a first water supply branch pipe 9 and a second water supply branch pipe 10, wherein the first water supply branch pipe 9 is communicated with the water outlet of the cold water tank 1, and the second water supply branch pipe 10 is communicated with the water outlet of the hot water tank 2. A cold water tank outlet butterfly valve 43 is installed on the first water supply branch pipe 9 for controlling the outlet of the cold water tank 1, and a hot water tank outlet butterfly valve 44 is installed on the second water supply branch pipe 10 for controlling the outlet of the hot water tank 2.

Further, the water supply system further includes a temperature control proportional control valve 11, the temperature control proportional control valve 11 is installed at a branch of the water supply pipe 7, that is, the temperature control proportional control valve 11 is installed at an intersection of the first water supply branch pipe 9 and the second water supply branch pipe 10, both the cold water flowing out of the cold water tank 1 and the hot water flowing out of the hot water tank 2 flow into the temperature control proportional control valve 11, and the flow rates of the cold water and the hot water are determined according to the temperature set by the temperature control proportional control valve 11. The water discharged from the temperature control proportional control valve 11 is pressurized by the water supply pump 8, and then the bath water with a proper temperature can be supplied to the bathroom. In the present embodiment, the outlet water temperatures of the temperature-controlled proportional control valve 11 are set to 41 ℃, 40 ℃, 42 ℃ and 43 ℃ in spring, summer, autumn and winter, respectively.

Further, the embodiment of the utility model provides a system is prepared to bathing water still includes the controller, and the controller is connected with circulating water pump 18, thermocouple 19, the equal electricity of first solenoid valve of intaking 23, first fluviograph 24, the solenoid valve 25 of intaking of second and second fluviograph 26. The controller receives the parameter values such as water temperature and water level, and controls the start and stop of the circulating water pump 18 and the opening and closing of the first water inlet electromagnetic valve 23 and the second water inlet electromagnetic valve 25 according to the parameter values, so that automatic water supplement, automatic heat preservation and automatic heating are realized, and the working stability of the whole device is ensured. The controller can be a centralized or distributed controller, for example, the controller can be a single chip microcomputer or a PLC, or can be composed of a plurality of distributed single chip microcomputers or PLCs, and a control program can be run in the single chip microcomputers or the PLCs to further control the operation of the circulating water pump 18, the first water inlet electromagnetic valve 23 and the second water inlet electromagnetic valve 25. The structure and operation principle of the controller are prior art in this field, and are not described herein.

The working principle of the bath water preparation system provided by the embodiment of the utility model is described below with the accompanying drawings:

when the air compressor 4 normally works, the first heating subsystem works and heats the bath water by using the heat in the high-temperature lubricating oil in the air compressor 4. At this time, the circulating water return butterfly valve 31, the air compressor water inlet butterfly valve 34, the air compressor water outlet butterfly valve 37 and the circulating water supply butterfly valve 32 are all opened, and the heat pump water inlet butterfly valve 39 and the heat pump water outlet butterfly valve 42 are all closed. The thermocouple 19 in the hot water tank 2 monitors the water temperature in real time and feeds the water temperature back to the circulating water pump 18, when the water temperature in the hot water tank 2 is lower than the set temperature, the circulating water pump 18 is started, circulating water enters the air compressor heat recovery device 6 through the circulating water return pipe 12 and the first circulating water return branch pipe 13 and exchanges heat with high-temperature lubricating oil in the air compressor heat recovery device 6, and the temperature of the circulating water rises. The heated circulating water flows back into the heater 3 through the first circulating water supply branch pipe 16 and the circulating water supply pipe 15 in sequence, and the high-temperature circulating water transfers heat to the water in the hot water tank 2 through the pipe wall of the heater 3, so that the water in the hot water tank 2 is heated, and the temperature of the water in the hot water tank 2 is maintained above a set temperature, which is 46 ℃ in the embodiment.

When the air compressor 4 is stopped, the second heating subsystem works to heat the bathing water by using the heat generated by the heat pump unit 5. At this time, the heat pump unit 5, the circulating water return butterfly valve 31, the heat pump water inlet butterfly valve 39, the heat pump water outlet butterfly valve 42 and the circulating water supply butterfly valve 32 are all opened, and the air compressor water inlet butterfly valve 34 and the air compressor water outlet butterfly valve 37 are all closed. The thermocouple 19 in the hot water tank 2 monitors the water temperature in real time and feeds back the water temperature to the circulating water pump 18, when the water temperature in the hot water tank 2 is lower than the set temperature, the circulating water pump 18 is started, circulating water enters the heat pump unit 5 through the circulating water return pipe 12 and the second circulating water return branch pipe 14 and is heated by the heat pump unit 5, the temperature of the circulating water rises, the circulating water with the raised temperature sequentially flows back into the heater 3 through the second circulating water supply branch pipe 17 and the circulating water supply pipe 15, the high-temperature circulating water transfers heat to the water in the hot water tank 2 through the pipe wall of the heater 3, and therefore the water in the hot water tank 2 is.

In the above process, the automatic water supply to the cold water tank 1 can be realized by the feedback mechanism formed by the first water inlet solenoid valve 23 and the first water level gauge 24, so that the water level in the cold water tank 2 is maintained at the set water level. The automatic water supply to the hot water tank 2 can be realized by a feedback mechanism formed by the second water inlet solenoid valve 25 and the second water level gauge 26, so that the water level in the hot water tank 2 is maintained at the set water level. The stable supply of the bath water can be further ensured by the two measures.

When bathing is needed, the water outlet butterfly valve 43 of the cold water tank and the book outlet butterfly valve 44 of the hot water tank are opened, the water supply pump 8 is started, the temperature of the bathing water is adjusted to be proper through the temperature control proportion adjusting valve 11, and then the bathing water with proper temperature can be supplied, wherein the water outlet temperature of the temperature control proportion adjusting valve 11 is generally set to be 41 ℃, 40 ℃, 42 ℃ and 43 ℃ respectively in spring, summer, autumn and winter.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A bathing water preparation system is characterized by comprising:

the water storage system comprises a cold water tank (1) and a hot water tank (2), the cold water tank (1) and the hot water tank (2) are both communicated with a tap water source through pipelines, and a heat exchanger (3) is arranged in the hot water tank (2);

the heating system comprises an air compressor (4) and a heat pump unit (5), the air compressor (4) is communicated with the heat exchanger (3) through a pipeline to form a first heating subsystem, and the heat pump unit (5) is communicated with the heat exchanger (3) through a pipeline to form a second heating subsystem;

the water supply system comprises a water supply pipe (7) and a water supply pump (8), one end of the water supply pipe (7) is communicated to a bathroom, the other end of the water supply pipe is divided into a first water supply branch pipe (9) and a second water supply branch pipe (10), the first water supply branch pipe (9) is communicated to a water outlet of the cold water tank (1), the second water supply branch pipe (10) is communicated to a water outlet of the hot water tank (2), and the water supply pump (8) is installed on the water supply pipe (7).

2. The bath water preparation system of claim 1, wherein the heating system further comprises:

one end of the circulating water return pipe (12) is communicated with a water outlet of the heat exchanger (3), the other end of the circulating water return pipe is divided into a first circulating water return branch pipe (13) and a second circulating water return branch pipe (14), the first circulating water return branch pipe (13) is communicated with a water inlet of the air compressor (4), and the second circulating water return branch pipe (14) is communicated with a water inlet of the heat pump unit (5);

circulating water supply pipe (15), the one end of circulating water supply pipe (15) with the water inlet intercommunication of heat exchanger (3), the other end divide into first circulating water supply branch pipe (16) and second circulating water supply branch pipe (17), first circulating water supply branch pipe (16) with the delivery port intercommunication of air compressor machine (4), second circulating water supply branch pipe (17) with the delivery port intercommunication of heat pump set (5).

3. Bath water making system according to claim 2, characterized in that the heating system further comprises a circulating water pump (18), the circulating water pump (18) being mounted on a side of the circulating water return (12) close to the hot water tank (2).

4. Bath water making system according to claim 3, characterized in that a thermocouple (19) is installed in the hot water tank (2) for detecting the water temperature, said thermocouple (19) being electrically connected to the circulating water pump (18), and the circulating water pump (18) is deactivated when the water temperature is higher than a set water temperature.

5. The bath water preparing system according to claim 2, wherein the first heating subsystem further comprises an air compressor heat recovery device (6), the air compressor heat recovery device (6) is connected in series between the heat exchanger (3) and the air compressor (4), and a water inlet and a water outlet of the air compressor heat recovery device (6) are respectively communicated with the first circulating water return branch pipe (13) and the first circulating water supply branch pipe (16).

6. Bath water preparation system according to claim 1, characterized in that the water supply system further comprises a temperature-controlled proportional regulating valve (11), said temperature-controlled proportional regulating valve (11) being mounted at a branch of the water supply pipe (7) for regulating the temperature of the supplied water.

7. The bath water preparing system according to claim 1, wherein the water storage system further comprises a water inlet pipe (20), one end of the water inlet pipe (20) is communicated with a tap water source, the other end of the water inlet pipe is divided into a first water inlet branch pipe (21) and a second water inlet branch pipe (22), the first water inlet branch pipe (21) is communicated with the water inlet of the cold water tank (1), and the second water inlet branch pipe (22) is communicated with the water inlet of the hot water tank (2).

8. Bath water preparation system according to claim 7, characterized in that a first water inlet solenoid valve (23) is arranged on the first water inlet branch pipe (21), a first water level gauge (24) is arranged in the cold water tank (1), the first water level gauge (24) is electrically connected to the first water inlet solenoid valve (23), and when the water level in the cold water tank (1) is higher than a set value, the first water inlet solenoid valve (23) is closed.

9. Bath water making system according to claim 7, characterized in that a second water inlet solenoid valve (25) is arranged on said second water inlet branch pipe (22), a second water level gauge (26) is arranged in said hot water tank (2), said second water level gauge (26) is electrically connected to said second water inlet solenoid valve (25), and said second water inlet solenoid valve (25) is closed when the water level in said hot water tank (2) is higher than a set value.

10. Bath water making system according to claim 1, characterized in that the heat exchanger (3) is a closed self-cleaning heat exchanger.

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