Water medium split type heat pump air conditioner

Abstract

A water medium split heat pump air conditioner, comprising an indoor unit, an outdoor unit, a water supply pipeline and a return water pipeline, the outdoor unit comprising an outdoor heat exchanger, an outdoor fan, a water collecting plate, a water collecting tank, a first water supplement electromagnetic valve, a second water supplement electromagnetic valve, a water spraying pump, a sprayer and a tap water supplement pipeline, the water collecting tank, the outdoor heat exchanger, the sprayer, the water collecting plate and the outdoor fan being arranged in sequence from bottom to top; the outdoor heat exchanger comprising a water supply pipe and a return water pipe; the first water supplement electromagnetic valve being arranged on the tap water supplement pipeline and being in sequence communication with the return water pipe, the return water pipe, the sprayer first water supplement pipeline, the second water supplement electromagnetic valve and the sprayer being in sequence communication, the water collecting tank, the water spraying pump and the sprayer being in sequence communication; the water supply pipeline and the return water pipeline being in communication with the water supply pipe and the return water pipe at one end and being in communication with the water pipeline of the water fluorine heat exchanger at the other end. The indoor unit and the outdoor unit use water as the heat exchange medium, automatically supplement water, are convenient to install and have the characteristics of high heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to a heat pump system. Background Technology

[0002] Chinese Patent 201520578605.9 discloses a heat pump unit, including an indoor unit and an outdoor unit. The indoor unit includes an indoor unit housing and indoor air conditioning system components located within the housing. The outdoor unit includes an outdoor unit housing and outdoor air conditioning system components located within the housing. The indoor and outdoor air conditioning system components are connected via refrigerant piping to form a refrigerant circuit for the heat pump unit. The indoor air conditioning system components include a compressor and a water-side heat exchanger that condenses the refrigerant during heating. The outdoor air conditioning system components include an air-cooled heat exchanger that evaporates the refrigerant during heating. The problems are: the indoor and outdoor units are connected via refrigerant piping, requiring professional maintenance such as vacuuming and refrigerant charging; and the heat exchange efficiency is low. Summary of the Invention

[0003] The purpose of this invention is to provide a split-type heat pump air conditioner that uses water as the heat exchange medium, which is easy to install and has high heat exchange efficiency.

[0004] This invention is implemented as follows: a split-type heat pump air conditioner using water as the medium, characterized in that it includes an indoor unit, an outdoor unit, a water supply pipe, and a return water pipe. The indoor unit includes a compressor, a four-way valve, a water-refrigerant heat exchanger, an electronic expansion valve, an indoor heat exchanger, a drip tray, and an indoor fan. The outdoor unit includes an outdoor heat exchanger, an outdoor fan, a water collection plate, a water collection tank, a first water supply solenoid valve, a second water supply solenoid valve, a water pump, a sprinkler, and a tap water supply pipe. The water collection tank, outdoor heat exchanger, sprinkler, water collection plate, and outdoor fan are arranged sequentially from bottom to top. The outdoor heat exchanger includes a water supply pipe and a water return pipe. The tap water supply pipe is equipped with a first water supply solenoid valve and is sequentially connected to the water return pipe. The water return pipe, the first water supply pipe for the sprinkler system, the second water supply solenoid valve, and the sprinkler are sequentially connected, and / or the water return pipe, the second water supply solenoid valve, and the water collection tank are sequentially connected. The water collection tank, the water pump, and the sprinkler are sequentially connected. One end of the water supply pipeline and the return pipeline are connected to the water supply pipe and the return pipe, respectively, and the other end is connected to the water pipeline of the water-fluoride heat exchanger.

[0005] The water-based split-type heat pump air conditioner is characterized by the following: it also includes a check valve, which is located on the tap water supply pipe and at the front end of the first water supply solenoid valve.

[0006] The water-based split-type heat pump air conditioner is characterized in that the sprayer includes a water inlet and spray water holes on the base plate. Or the sprayer may be provided in two units; Alternatively, the sprayer may have a water outlet, and the water outlet may have an atomizing head; One sprayer is connected to the collection tank via a water pump, and the other end / another sprayer is connected to the return water pipe via a second water supply solenoid valve.

[0007] The special feature of the water-based split-type heat pump air conditioner is that the water spray pump and the second water replenishment solenoid valve work simultaneously, or the water spray pump works, or the second water replenishment solenoid valve works.

[0008] The water-based split-type heat pump air conditioner is characterized by the following: it also includes a built-in buffer water tank, which is located inside the outdoor unit and is connected to the tap water supply pipe, return water pipe and return water pipeline.

[0009] The water-based split-type heat pump air conditioner is characterized by the fact that a water filter is provided between the water pump and the water collection tank.

[0010] The special feature of the water-based split-type heat pump air conditioner is that a liquid level sensor is installed in the water collection tank.

[0011] The special feature of the water-based split-type heat pump air conditioner is that it also includes a water injection pump, which is connected to a water receiving pan through a water purifier. The water collection tray is located below the indoor heat exchanger, and the water collection tray, water purifier, water injection pump and water supply or return pipeline are connected.

[0012] The water-based split-type heat pump air conditioner is characterized by the fact that it also includes a water distributor and a water collector, and the indoor unit connecting the water distributor and the water collector is provided with at least two units. The water supply line is connected to the manifold, and the return line is connected to the collector; the water-refrigerant heat exchanger of the indoor unit is connected to both the manifold and the collector.

[0013] The water-based split-type heat pump air conditioner is characterized by further including a terminal cooling / heating unit and a gas-fired or electric water heating unit. The terminal cooling / heating unit is connected to the water distributor and water collector; the gas and electric water heating devices are respectively connected to the water supply pipeline and the water return pipeline.

[0014] This invention relates to a split-type heat pump air conditioner that uses water as the heat exchange medium. The indoor and outdoor units use water as the heat exchange medium, automatically replenish water, are easy to install, and have high heat exchange efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of the first embodiment of the present invention.

[0016] Figure 2 This is the front view of the indoor unit of this invention.

[0017] Figure 3 This is a front view of the outdoor unit of this invention.

[0018] Figure 4 This is a front view of the second embodiment of the outdoor unit of the present invention.

[0019] Figure 5 This is a front view of the third embodiment of the outdoor unit of the present invention.

[0020] Figure 6 This is a front view of the second embodiment of the present invention.

[0021] Figure 7 This is a front view of the third embodiment of the present invention. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1 like Figure 1 As shown, a split-type heat pump air conditioner using water as the medium includes an indoor unit 1, an outdoor unit 2, a water supply pipe 3, and a return water pipe 4. like Figure 1 , Figure 2 As shown, the indoor unit 1 includes a compressor 10, a four-way valve 11, a water-fluorine heat exchanger 12, an electronic expansion valve 13, an indoor heat exchanger 14, a drip tray 15, and an indoor fan 16. The water-fluorine heat exchanger 12 has refrigerant piping and water piping. When cooling, the indoor heat exchanger 14 is an evaporator, and when heating, the indoor heat exchanger 14 is a condenser.

[0025] like Figure 1 , Figure 3 As shown, the outdoor unit 2 includes an outdoor heat exchanger 21, an outdoor fan 22, a water collection plate 23, a water collection tank 24, a first water supply solenoid valve 251, a second water supply solenoid valve 252, a water pump 26, a sprayer 27, and a tap water supply pipe 28. The water collection tank 24, outdoor heat exchanger 21, sprayer 27, water collection plate 23, and outdoor fan 22 are arranged sequentially from bottom to top. The outdoor heat exchanger 21 includes a water supply pipe 211 and a return pipe 212. The water pipe 28 is equipped with a first water supply solenoid valve 251 and is connected to the return water pipe 212 in sequence. The return water pipe 212, the first water supply pipe 291 for spraying, the second water supply solenoid valve 252 and the sprayer 27 are connected in sequence. The outdoor unit 2 is also equipped with a circulating water pump 31, which is installed on the water supply pipe 211 or the return water pipe 212; it can also be installed on the water supply line 3 or the return water line 4; so that water circulates between the outdoor unit and the indoor unit, which plays a role in heat transfer. The area of ​​the outdoor heat exchanger 21 is smaller than the area of ​​the water collection tank 24, and the area of ​​the sprayer 27 is smaller than or equal to the area of ​​the outdoor heat exchanger 21.

[0026] like Figure 3 As shown, the water collection tank 24, the water pump 26, and the sprinkler 27 are connected in sequence; like Figure 5 As shown, the return water pipe 212, the second water replenishment solenoid valve 252 and the water collection tank 24 are connected in sequence; One end of the water supply pipe 3 and the return water pipe 4 are connected to the water supply pipe 211 and the return water pipe 212 respectively, and the other end is connected to the water pipe of the water-fluoride heat exchanger 12.

[0027] like Figure 5 As shown, the water collection tank 24 is equipped with a liquid level sensor 241. When the water level in the water collection tank 24 is lower than the set water level, the second water replenishment solenoid valve 252 is opened.

[0028] The water collection plate 23 is placed between the heat exchanger 21 and the outdoor fan 22. When the outdoor fan 22 is working, a negative pressure is generated below, which is conducive to the evaporation of water film on the surface of the heat exchanger 21. With this design, the bottom and lower part of the outdoor unit 2 are provided with air inlets or air vents; when the outdoor fan 22 is working, the air flows from bottom to top, and at the same time the water pump 26 is working or the second water replenishment solenoid valve 252 is opened, and water is sprayed onto the outdoor heat exchanger 21 through the sprayer 27. The water exchanges heat with the outdoor heat exchanger 21 and evaporates into the air, thereby realizing the function of the circulating water in the heat exchanger 21 dissipating heat to the outside; the water collection plate 23 is used to collect the water droplets in the air that have not evaporated and return them to the water collection tank 24 to improve the water utilization efficiency.

[0029] During cooling, the exhaust port of compressor 10, four-way valve 11, water-fluorine heat exchanger 12, electronic expansion valve 13, indoor heat exchanger 14, four-way valve 11 and compressor 10 return port form a loop to achieve cooling. At the same time, the water circuit of water-fluorine heat exchanger 12, water supply pipe 3, water supply pipe 211, outdoor heat exchanger 21, return water pipe 212, return water pipe 4 and water-fluorine heat exchanger 12 constitute a water circulation loop. During the operation of the outdoor unit, the water pump 26 works or the second water replenishment solenoid valve 252 is opened, and water is sprayed onto the outdoor heat exchanger 21 through the sprayer 27 to achieve heat exchange between the spray water and the water medium in the outdoor heat exchanger 21, thereby improving the heat exchange efficiency.

[0030] The opening or closing of the first water replenishment solenoid valve 251 replenishes water to the water supply circulation loop; the opening of the second water replenishment solenoid valve 252 replenishes water to the collection tank 24.

[0031] When heating, the water pump and sprayer do not work, and the second water supply solenoid valve 252 remains in the closed state.

[0032] As a further improvement of the present invention, it also includes a check valve 20, which is provided on the tap water supply pipe 28 and located at the front end of the first water supply solenoid valve 251.

[0033] As a further improvement of the present invention: the area of ​​the sprayer 27 is adapted to the area of ​​the outdoor heat exchanger 21; The sprayer 27 includes a water inlet and spray holes on the base plate; like Figure 4 As shown, there are two sprayers 27, and each sprayer 27 has a water outlet hole; it is connected to the return water pipe 212 through the second water replenishment solenoid valve 252.

[0034] Or the water outlet is equipped with an atomizing head; One sprayer 27 is connected to the collection tank 24 via the water pump 26, and the other sprayer 27 is connected to the return water pipe 212 via the second water replenishment solenoid valve 252.

[0035] The water pump 26 and the second water replenishment solenoid valve 252 can work simultaneously or separately. When the second water replenishment solenoid valve 252 is working, the sprayer operates, and the remaining water falls into the collection tank through the outdoor heat exchanger, thus replenishing the water supply.

[0036] As a further improvement of the present invention: the water pump 26 and the second water replenishment solenoid valve 252 work simultaneously, or the water pump 26 works, or the second water replenishment solenoid valve 252 works.

[0037] As a further improvement of the present invention, it also includes a built-in buffer water tank 30, which is located inside the outdoor unit 2 and is connected to the tap water supply pipe 28, the return water pipe 212, and the return water line 4. Figure 5 As shown, the built-in buffer water tank 30, the second water replenishment solenoid valve 252 and the collection water tank 24 are connected in sequence; As a further improvement of the present invention: a water filter (not shown) and a check valve are provided between the water pump 26 and the water collection tank 24.

[0038] The outdoor heat exchanger 21 extends into the water collection tank 24, and there is a height difference between the lower end of the outdoor heat exchanger 21 and the water level in the water collection tank 24.

[0039] As a further improvement of the present invention, it also includes a water injection pump 17, which is connected to a water receiving tray 15 via a water purifier 18. The water receiving tray 15 is located below the indoor heat exchanger 14, and the water receiving tray 15, the water injection pump 17, and the water supply or return water line of the water-fluoride heat exchanger are connected. A water purifier 18 is installed between the water injection pump 17 and the water receiving tray 15.

[0040] Example 2 like Figure 6 As shown, it also includes a water distributor 51 and a water collector 52, and the indoor unit 1 has two of them; Water supply pipe 3 is connected to water distributor 51, and return water pipe 4 is connected to water collector 52; the water-refrigerant heat exchanger of indoor unit 1 is connected to water distributor 51 and water collector 52 respectively. With water distributor 51 and water collector 52 installed, indoor unit 1 can be installed in three or more locations.

[0041] Example 3 like Figure 4 As shown, it also includes a terminal cooling / heating unit 7 and a gas-fired or electric water heating unit 8. Terminal cooling / heating unit 7 is connected to the water distributor 51 and water collector 52; gas-fired water heater or electric water heater is connected to the water supply pipe 3 and the return water pipe 4 respectively. The number of terminal cooling / heating units 7 and indoor units 1 is appropriate; during winter heating, the gas-fired water heater or electric water heater works, and the terminal cooling / heating unit 7 also works.

[0042] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A split-type heat pump air conditioner using water as the medium, characterized in that: Including indoor unit, outdoor unit, water supply pipes and return pipes, The indoor unit includes a compressor, a four-way valve, a water-refrigerant heat exchanger, an electronic expansion valve, an indoor heat exchanger, a drip tray, and an indoor fan. The outdoor unit includes an outdoor heat exchanger, an outdoor fan, a water collection plate, a water collection tank, a first water supply solenoid valve, a second water supply solenoid valve, a water pump, a sprinkler, and a tap water supply pipe. The water collection tank, outdoor heat exchanger, sprinkler, water collection plate, and outdoor fan are arranged sequentially from bottom to top. The outdoor heat exchanger includes a water supply pipe and a water return pipe. The tap water supply pipe is equipped with a first water supply solenoid valve and is sequentially connected to the water return pipe. The water return pipe, the first water supply pipe for the sprinkler system, the second water supply solenoid valve, and the sprinkler are sequentially connected, and / or the water return pipe, the second water supply solenoid valve, and the water collection tank are sequentially connected. The water collection tank, the water pump, and the sprinkler are sequentially connected. One end of the water supply pipeline and the return pipeline are connected to the water supply pipe and the return pipe, respectively, and the other end is connected to the water pipeline of the water-fluoride heat exchanger.

2. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: It also includes a check valve, which is installed on the tap water supply pipe and located in front of the first water supply solenoid valve.

3. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: The sprayer includes a water inlet and spray water holes on the base plate; Or the sprayer may be provided in two units; Alternatively, the sprayer may have a water outlet, and the water outlet may have an atomizing head; One sprayer is connected to the collection tank via a water pump, and the other sprayer is connected to the return water pipe via a second water replenishment solenoid valve.

4. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: The water pump and the second water supply solenoid valve operate simultaneously, or the water pump operates, or the second water supply solenoid valve operates.

5. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: It also includes a built-in buffer water tank, which is located inside the outdoor unit and is connected to the tap water supply pipe, return water pipe and return water pipeline.

6. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: A water filter is installed between the water pump and the water collection tank.

7. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: The water collection tank is equipped with a liquid level sensor.

8. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: It also includes a water pump, which is connected to a water collection tray via a water purifier; The water collection tray is located below the indoor heat exchanger, and the water collection tray, water purifier, water injection pump and water-fluoride heat exchanger are connected by the water supply or return water pipeline.

9. A split-type heat pump air conditioner using water as a medium according to claim 1, characterized in that: It also includes a water distributor and a water collector, with at least two of these in the indoor unit; The water supply line is connected to the manifold, and the return line is connected to the collector; the water-refrigerant heat exchanger of the indoor unit is connected to both the manifold and the collector.

10. A split-type heat pump air conditioner using water as a medium according to claim 9, characterized in that: It also includes terminal cooling / heating units and gas-fired or electric water heating units. The terminal cooling / heating unit is connected to the water distributor and water collector; the gas-fired water heater or the electric water heater is connected to the water supply pipeline and the return water pipeline, respectively.

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