Heat pump device

Abstract

The utility model provides a heat pump device which comprises a heat pump hot water unit, a water mixing valve, an underground heat exchange part and a temperature and humidity sensor, the water outlet end of the heat pump hot water unit, the hot water inlet end of the water mixing valve, the underground heat exchange part and the water return end of the heat pump hot water unit are sequentially connected, and the cold water inlet end of the water mixing valve is connected with a cold water source. Or is connected with the water outlet end of the underground heat exchange piece; the temperature and humidity sensor is used for monitoring indoor environment temperature and indoor environment humidity. The water mixing valve changes the opening degree of the hot water inlet end and the opening degree of the cold water inlet end according to monitoring results of the temperature and humidity sensor. Different water inlet ends of the water mixing valve are connected with the water outlet end of the heat pump hot water unit and the water outlet end of the underground heat exchange piece or connected with the water outlet end of the heat pump hot water unit and a cold water source, and therefore cold water and hot water are mixed. The indoor environment is monitored through the temperature and humidity sensor, then the water mixing valve can adjust the opening degree according to the monitoring result, the temperature of water entering the underground heat exchange piece is adjusted, and when the water temperature of the underground heat exchange piece is larger than the dew point temperature of the current indoor environment, condensation water can be avoided, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat pump systems, and in particular to a heat pump device. Background Art

[0002] A heat pump is a device that uses mechanical energy to transfer heat from one location to another. By connecting the heat pump to heat exchange pipes laid under the floor, a room can be heated using radiant floor heating. However, during this heating process, the temperature difference between the inside and outside of the floor can easily cause condensation, making the floor slippery and affecting daily activities. Utility Model Content

[0003] The utility model provides a heat pump device to solve the technical problem that condensation water is easily generated on a floor paved with a heat pump.

[0004] To achieve the above-mentioned objectives, the heat pump device proposed in the present application includes a heat pump hot water unit, a mixing valve, an underground heat exchanger and a temperature and humidity sensor. The water outlet of the heat pump hot water unit, the hot water inlet of the mixing valve, the underground heat exchanger and the return water end of the heat pump hot water unit are connected in sequence, and the cold water inlet of the mixing valve is connected to a cold water source or to the water outlet of the underground heat exchanger; the temperature and humidity sensor is used to monitor the indoor ambient temperature and indoor ambient humidity, and the mixing valve changes the opening of the hot water inlet and the cold water inlet according to the monitoring results of the temperature and humidity sensor.

[0005] Optionally, in one embodiment, it also includes an indoor fan and an indoor heat exchanger, the mixing valve and the underground heat exchanger are connected in series to form a floor heating flow path, the indoor heat exchanger and the floor heating flow path are arranged in parallel, and the water outlet end of the indoor heat exchanger is connected to the cold water inlet end of the mixing valve.

[0006] Optionally, in one embodiment, the indoor fan is provided with a temperature sensor, and the temperature sensor is used to monitor the outlet air temperature of the indoor fan.

[0007] Optionally, in one embodiment, the device further includes a water inlet three-way valve and a water outlet three-way valve;

[0008] The water inlet end of the water inlet three-way valve is connected to the water outlet end of the heat pump water heater, one water outlet end of the water inlet three-way valve is connected to the hot water inlet end of the mixing valve, and the other water outlet end of the water inlet three-way valve is connected to the water inlet end of the indoor heat exchanger;

[0009] One water inlet end of the water outlet three-way valve is connected to the water outlet end of the underground heat exchanger, the other water inlet end of the water outlet three-way valve is connected to the water outlet end of the indoor heat exchanger, and the water outlet end of the water outlet three-way valve is connected to the water inlet end of the heat pump water heater unit.

[0010] Optionally, in one embodiment, a water tank is further included, on which a first water flow channel is provided, and the first water flow channel is connected in series between the water outlet end of the heat pump water heater and the hot water inlet end of the mixing valve, so as to utilize the water outlet of the heat pump water heater to heat the water in the water tank.

[0011] Optionally, in one embodiment, a heating element is provided in the water tank, and the heating element is used to heat the water in the water tank.

[0012] Optionally, in one embodiment, a second water flow channel is provided on the water tank, and the second water flow channel is connected in series between the water outlet end of the underground heat exchange element and the water inlet end of the heat pump water heater unit.

[0013] Optionally, in one embodiment, a groundwater temperature sensor is provided at the water inlet end of the underground heat exchanger, and the groundwater temperature sensor is used to monitor the water inlet temperature of the underground heat exchanger.

[0014] Optionally, in one embodiment, the heat pump water heater unit is provided with an outlet water temperature sensor, and the outlet water temperature sensor is used to monitor the outlet water temperature of the heat pump water heater unit.

[0015] Optionally, in one embodiment, the heat pump water heater unit includes a compressor, an outdoor heat exchanger, a water-side heat exchanger and an electronic expansion valve. The compressor, the outdoor heat exchanger, the electronic expansion valve and the refrigerant side of the water-side heat exchanger are connected in sequence, and the water inlet and outlet of the heat pump water heater unit are respectively arranged on the water side of the water-side heat exchanger.

[0016] The heat pump device provided in the present application realizes mixing of hot and cold water by connecting different water inlet ends of the mixing valve to the water outlet end of the heat pump hot water unit and the water outlet end of the underground heat exchanger, or respectively connecting them to the water outlet end of the heat pump hot water unit and the cold water source; and uses a temperature and humidity sensor to monitor the indoor environment, so that the mixing valve can adjust the opening according to the monitoring results, thereby adjusting the water temperature entering the underground heat exchanger. When the water temperature of the underground heat exchanger is higher than the dew point temperature of the current indoor environment, condensation water can be avoided, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of the heat pump device of this application.

[0019] Description of Figure Numbers:

[0020] 1. Heat pump water heater; 101. Compressor; 102. Outdoor heat exchanger; 103. Water-side heat exchanger; 104. Electronic expansion valve; 2. Mixing valve; 3. Underground heat exchanger; 31. Underground water temperature sensor; 4. Temperature and humidity sensor; 5. Indoor fan; 6. Indoor heat exchanger; 7. Water inlet three-way valve; 8. Water outlet three-way valve; 9. Mixing check valve; 10. Water tank; 11. Heating element; 12. Water outlet temperature sensor.

[0021] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0023] In the embodiments of this application, Figure 1 As shown, the heat pump device includes a heat pump hot water unit 1, a mixing valve 2, an underground heat exchanger 3 and a temperature and humidity sensor 4. The water outlet of the heat pump hot water unit 1, the hot water inlet of the mixing valve 2, the underground heat exchanger 3 and the return water end of the heat pump hot water unit 1 are connected in sequence, and the cold water inlet of the mixing valve 2 is connected to the cold water source or to the water outlet of the underground heat exchanger 3; the temperature and humidity sensor 4 is used to monitor the indoor ambient temperature and indoor ambient humidity, and the mixing valve 2 changes the opening of the hot water inlet and the cold water inlet according to the monitoring results of the temperature and humidity sensor 4.

[0024] It should be noted that the mixing valve 2 is a valve used to connect to the cold water pipe and the hot water pipe to mix hot and cold water. It is understood that after water flows through the underground heat exchanger 3, the temperature of the water flowing out of the underground heat exchanger 3 is lower than the temperature of the water flowing into the underground heat exchanger 3 at its inlet. By connecting the outlet of the heat pump water heater 1, which provides a hot water source, and the outlet of the underground heat exchanger 3, which provides a relatively cold water source (or cold water source), to the mixing valve 2, when the temperature of the underground heat exchanger 3 needs to be raised, the hot water flow rate within the mixing valve 2 can be increased by increasing the opening of the hot water inlet of the mixing valve 2 and decreasing the opening of the cold water inlet of the mixing valve 2. Furthermore, by providing a temperature and humidity sensor 4 to monitor the temperature and humidity of the indoor environment, the mixing valve 2 adjusts its opening based on the monitoring results, thereby changing the water flow temperature at the outlet of the mixing valve 2. When the temperature of the underground heat exchanger 3 is higher than the indoor dew point, condensation on the indoor floor can be prevented, keeping the floor dry, ensuring the safety of users in their daily activities, and improving the user experience. Exemplarily, the temperature and humidity sensor 4 is arranged on the indoor fan 5 .

[0025] In some embodiments, the heat pump device further includes a controller, which is configured to respond to signals from the temperature and humidity sensor 4 and calculate a real-time dew point temperature based on the temperature and humidity. The controller then compares the calculated result with the current temperature of the underground heat exchanger 3 . When the temperature of the underground heat exchanger 3 is lower than the real-time dew point temperature, the controller controls the opening of the hot water inlet and the cold water inlet of the mixing valve 2 until the temperature of the underground heat exchanger 3 exceeds the real-time dew point temperature. The dew point temperature can be calculated using a known formula.

[0026] In some embodiments, as Figure 1 As shown, the heat pump device also includes an indoor fan 5 and an indoor heat exchanger 6. The mixing valve 2 and the underground heat exchanger 3 are connected in series to form a floor heating flow path. The indoor heat exchanger 6 and the floor heating flow path are arranged in parallel. The water outlet end of the indoor heat exchanger 6 is connected to the cold water inlet end of the mixing valve 2.

[0027] It can be understood that the hot water of the heat pump water heater unit 1 flows directly into the indoor heat exchanger 6, and the airflow generated by the indoor fan 5 blows toward the indoor heat exchanger 6 and exchanges heat therewith, thereby blowing out hot air.

[0028] In some embodiments, as Figure 1 As shown, the indoor fan 5 is provided with a temperature sensor, which is used to monitor the outlet air temperature of the indoor fan 5 .

[0029] It is understandable that the user can adjust the outlet water temperature of the heat pump water heater 1 according to the monitoring result of the temperature sensor, thereby changing the temperature of the indoor heat exchanger 6. For example, the controller controls the heating amount of the heat pump water heater 1 in response to the signal of the temperature sensor.

[0030] In some embodiments, as Figure 1As shown, the heat pump device further includes a water inlet three-way valve 7 and a water outlet three-way valve 8;

[0031] The water inlet end of the water inlet three-way valve 7 is connected to the water outlet end of the heat pump water heater 1, one water outlet end of the water inlet three-way valve 7 is connected to the hot water inlet end of the mixing valve 2, and the other water outlet end of the water inlet three-way valve 7 is connected to the water inlet end of the indoor heat exchanger 6;

[0032] One water inlet end of the water outlet three-way valve 8 is connected to the water outlet end of the underground heat exchanger 3, the other water inlet end of the water outlet three-way valve 8 is connected to the water outlet end of the indoor heat exchanger 6, and the water outlet end of the water outlet three-way valve 8 is connected to the water inlet end of the heat pump water heater 1.

[0033] It is understandable that the water inlet three-way valve 7 and the water outlet three-way valve 8 are used to distribute the flow rate, thereby realizing the parallel connection between the underground heat exchange element 3 and the indoor heat exchanger 6 .

[0034] In some embodiments, as Figure 1 As shown, the heat pump device also includes a water mixing check valve 9, the water inlet end of the water mixing check valve 9 is connected between the water outlet end of the water outlet three-way valve 8 and the heat pump hot water unit 1, and the water outlet end of the water mixing check valve 9 is connected to the cold water inlet end of the water mixing valve 2.

[0035] It can be understood that the one-way flow of water out of the underground heat exchanger 3 and the indoor heat exchanger 6 is controlled by the mixing water check valve 9 to prevent the hot water entering the mixing water valve 2 from flowing to the side of the water outlet three-way valve 8.

[0036] In some embodiments, as Figure 1 As shown, the heat pump device also includes a water tank 10, which is provided with a first water flow channel. The first water flow channel is connected in series between the water outlet end of the heat pump water heater 1 and the hot water inlet end of the mixing valve 2 to utilize the water outlet of the heat pump water heater 1 to heat the water in the water tank 10.

[0037] It can be understood that the heat pump water heater unit 1 heats the water in the water tank 10 to achieve heating of the water tank 10 .

[0038] In some embodiments, as Figure 1 As shown, one end of the water tank 10 is connected to an external water source, and the other end is communicated with a domestic water device. It should be noted that the domestic water device can be a shower head or a hot water tap.

[0039] In some embodiments, as Figure 1 As shown, a heating element 11 is provided in the water tank 10, and the heating element 11 is used to heat the water in the water tank 10. It is understood that when the heat generated by the liquid thermal radiation is not enough to supply domestic water of suitable temperature, the water in the water tank 10 can be heated by the heating element 11 to meet the use requirements.

[0040] In some embodiments, as Figure 1 As shown, the water tank 10 is provided with a second water flow channel, which is connected in series between the water outlet of the underground heat exchanger 3 and the water inlet of the heat pump water heater 1. It can be understood that the heat at the water outlet of the underground heat exchanger 3 is recovered to the water tank 10 through the second water flow channel.

[0041] In some embodiments, as Figure 1 As shown, a groundwater temperature sensor 31 is provided at the water inlet of the underground heat exchanger 3. The groundwater temperature sensor 31 is used to monitor the water inlet temperature of the underground heat exchanger 3. It is understood that the monitoring results of the groundwater temperature sensor 31 can be used to accurately determine the water inlet temperature of the underground heat exchanger 3. On this basis, the controller can adjust the heating capacity of the heat pump water heater 1 based on the detection results, thereby changing the water inlet temperature of the underground heat exchanger 3.

[0042] In some embodiments, as Figure 1 As shown, the heat pump water heater 1 is provided with an outlet water temperature sensor 12, which is used to monitor the outlet water temperature of the heat pump water heater 1. It is understandable that the outlet water temperature of the heat pump water heater 1 can be accurately grasped according to the monitoring results of the outlet water temperature sensor.

[0043] In some embodiments, as Figure 1 As shown, the heat pump water heater unit 1 includes a compressor 101, an outdoor heat exchanger 102, a water-side heat exchanger 103 and an electronic expansion valve 104. The compressor 101, the outdoor heat exchanger 102, the electronic expansion valve 104 and the refrigerant side of the water-side heat exchanger 103 are connected in sequence, and the water inlet and outlet of the heat pump water heater unit 1 are respectively arranged on the water side of the water-side heat exchanger 103.

[0044] It should be noted that along the refrigerant flow direction, the exhaust port of compressor 101, outdoor heat exchanger 102, electronic expansion valve 104, the refrigerant side of water-side heat exchanger 103, and the air inlet of compressor 101 are sequentially connected to form a refrigerant circuit. Water-side heat exchanger 103 utilizes a hot water exchange tank. The refrigerant side of water-side heat exchanger 103 refers to the refrigerant pipeline connecting compressor 101, outdoor heat exchanger 102, and electronic expansion valve 104. At least a portion of the refrigerant pipeline between compressor 101 and electronic expansion valve 104 is located within the hot water exchange tank to provide heat to the water in the hot water exchange tank. The water side of water-side heat exchanger 103 refers to the water pipeline connecting water inlet three-way valve 7, underground heat exchange element 3 (indoor heat exchanger 6), and water outlet three-way valve 8. At least a portion of the water pipeline between water inlet three-way valve 7 and water outlet three-way valve 8 is located within the hot water exchange tank to exchange heat with the water in the hot water exchange tank.

[0045] It is understandable that the heating amount of the heat pump water heater unit 1 can be adjusted by adjusting the frequency of the compressor 101 and the opening of the electronic expansion valve 104 .

[0046] In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features.

[0047] The heat pump device provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A heat pump device, characterized in that: The invention comprises a heat pump water heater (1), a mixing valve (2), an underground heat exchanger (3) and a temperature and humidity sensor (4); the water outlet of the heat pump water heater (1), the hot water inlet of the mixing valve (2), the underground heat exchanger (3) and the return water end of the heat pump water heater (1) are connected in sequence; the cold water inlet of the mixing valve (2) is connected to a cold water source or to the water outlet of the underground heat exchanger (3); the temperature and humidity sensor (4) is used to monitor the indoor ambient temperature and indoor ambient humidity; the mixing valve (2) changes the opening of the hot water inlet and the cold water inlet according to the monitoring result of the temperature and humidity sensor (4).

2. The heat pump device according to claim 1, characterized in that It also includes an indoor fan (5) and an indoor heat exchanger (6); the water mixing valve (2) and the underground heat exchange element (3) are connected in series to form a floor heating flow path; the indoor heat exchanger (6) and the floor heating flow path are arranged in parallel; the water outlet end of the indoor heat exchanger (6) is connected to the cold water inlet end of the water mixing valve (2).

3. The heat pump device according to claim 2, characterized in that The indoor fan (5) is provided with a temperature sensing probe, and the temperature sensing probe is used to monitor the outlet air temperature of the indoor fan (5).

4. The heat pump device according to claim 2, characterized in that It also includes a water inlet three-way valve (7) and a water outlet three-way valve (8); The water inlet end of the water inlet three-way valve (7) is in communication with the water outlet end of the heat pump water heater (1), one water outlet end of the water inlet three-way valve (7) is in communication with the hot water inlet end of the water mixing valve (2), and the other water outlet end of the water inlet three-way valve (7) is in communication with the water inlet end of the indoor heat exchanger (6); One water inlet end of the water outlet three-way valve (8) is in communication with the water outlet end of the underground heat exchanger (3), the other water inlet end of the water outlet three-way valve (8) is in communication with the water outlet end of the indoor heat exchanger (6), and the water outlet end of the water outlet three-way valve (8) is in communication with the water inlet end of the heat pump water heater (1).

5. The heat pump device according to claim 1, wherein The water tank (10) is also included. A first water flow channel is provided on the water tank (10). The first water flow channel is connected in series between the water outlet of the heat pump water heater (1) and the hot water inlet of the mixing valve (2), so as to utilize the water outlet of the heat pump water heater (1) to heat the water in the water tank (10).

6. The heat pump device according to claim 5, characterized in that A heating element (11) is provided in the water tank (10), and the heating element (11) is used to heat the water in the water tank (10).

7. The heat pump device according to claim 5, characterized in that The water tank (10) is provided with a second water flow channel, and the second water flow channel is connected in series between the water outlet end of the underground heat exchange element (3) and the water inlet end of the heat pump water heater unit (1).

8. The heat pump device according to claim 1, wherein The water inlet end of the underground heat exchange element (3) is provided with an underground water temperature sensor (31), and the underground water temperature sensor (31) is used to monitor the water inlet temperature of the underground heat exchange element (3).

9. The heat pump device according to claim 1, wherein The heat pump water heater unit (1) is provided with an outlet water temperature sensor (12), and the outlet water temperature sensor (12) is used to monitor the outlet water temperature of the heat pump water heater unit (1).

10. The heat pump device according to any one of claims 1 to 9, characterized in that: The heat pump water heater (1) comprises a compressor (101), an outdoor heat exchanger (102), a water-side heat exchanger (103) and an electronic expansion valve (104); the compressor (101), the outdoor heat exchanger (102), the electronic expansion valve (104) and the refrigerant side of the water-side heat exchanger (103) are connected in sequence; the water inlet and the water outlet of the heat pump water heater (1) are respectively arranged on the water side of the water-side heat exchanger (103).

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