WO2011123979A1

WO2011123979A1 - Heat pump hot water air conditioner

Info

Publication number: WO2011123979A1
Application number: PCT/CN2010/000449
Authority: WO
Inventors: 陈永炎; 史密斯·史提芬·米高; 张鉴涛
Original assignee: 远景有限公司
Priority date: 2010-04-06
Filing date: 2010-04-06
Publication date: 2011-10-13

Abstract

A heat pump hot water air conditioner includes a compressor (1), a three-way valve (2), a four-way valve (5), a first heat exchanger (6), a second heat exchanger (9), a hot water heat exchanger (3) and a first check valve (4). The discharge port of the compressor (1) is connected with the inlet (21) of the three-way valve (2), and the first outlet (22) of the three-way valve (2) is connected with the inlet (51) of the four-way valve (5). The input end of the hot water heat exchanger (3) is connected with the second outlet (23) of the three-way valve (2), and the output end thereof is connected with the inlet (51) of the four-way valve (5) via the first check valve (4). The water system of the hot water heat exchanger (3) is connected with a water source. The refrigerant flow direction is controlled by opening or closing the four-way valve (5), the three-way valve (2) and a two-way valve (10) to achieve switching among seven functions of cooling-only, dehumidifying-only, heating-only, cooling-supplying hot water, dehumidifying-supplying hot water, heating-supplying hot water and supplying hot water-only.

Description

Heat pump hot water air conditioner

[Technical Field]

The utility model relates to the technical field of refrigeration and heating, in particular to a heat pump hot water air conditioner. 【Background technique】

With economic development, social progress, people's living standards and awareness of environmental protection, air conditioners have a better market prospect and are gradually entering more and more homes and applications. At present, most air conditioners only have the function of cooling in summer and heating in winter to regulate indoor air. The large amount of heat generated by the air conditioner during the refrigeration process is discharged into the outdoor atmosphere without any use, resulting in an increase in atmospheric temperature and a great waste of energy; general air-conditioning refrigerants use non-natural environmentally friendly refrigerants to destroy At the same time, air-conditioned homes and offices need to purchase additional water heaters to solve daily hot water problems, increase expenses, and electric water heaters and gas water heaters consume a lot of energy. Energy efficiency is not high.

[utility content]

The technical problem to be solved by the utility model is to provide seven functions of single cooling, separate dehumidification, separate heating, cooling hot water, dehumidification hot water, heating hot water and separate hot water, and Automatically converted heat pump hot water air conditioner.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A heat pump hot water air conditioner, comprising: a compressor, a four-way valve, a first heat exchanger and a second heat exchanger, wherein the first switching port, the second switching port and the outlet of the four-way valve are respectively connected to the first heat exchange One end of the device, one end of the second heat exchanger, the suction end of the compressor, and the other end of the first heat exchanger is connected to the other end of the second heat exchanger; and the method further comprises: a three-way valve, a hot water heat exchanger and a first check valve; an exhaust end of the compressor is connected to the inlet of the three-way valve, a first outlet of the three-way valve is connected to the inlet of the four-way valve; and an input end of the hot water heat exchanger is connected to the second outlet of the three-way valve, The output end is connected to the inlet of the four-way valve via the first one-way valve; the water system of the hot water heat exchanger is connected to the water source.

The first one-way valve is turned from the output end of the hot water heat exchanger to the inlet of the four-way valve. The other end of the first heat exchanger and the other end of the second heat exchanger are connected through a flow divider, a second one-way valve assembly, a two-way valve and a first expansion device, and the specific connection manner is: The other end of the heat exchanger is connected to the confluence port of the diverter, the first branch port of the diverter is connected to one end of the branch of the two-way valve and the first expansion device, and the second branch port of the diverter is connected to the second one-way valve assembly. One end of the branch, the other end of the branch in which the two-way valve and the first expansion device are connected in series, and the other end of the branch in which the second check valve assembly is located are connected to the other end of the second heat exchanger.

The second check valve assembly includes a three-hole check valve having a first port, a second port, and a third port, a second expansion device, and a third expansion device, wherein the second port is connected to the second expansion device Connected to the second branch port of the flow splitter; the third port is connected to the first port after being connected to the third expansion device, and the first port is connected to the second heat exchanger; the three-hole check valve is from the first port to the second port , three port direction is turned on.

The water system inlet of the hot water heat exchanger is connected to a circulating water pump, and the water system outlet is connected to the water flow switch.

The utility model organically combines the first heat exchanger of the air conditioner, the second heat exchanger and the hot water heat exchanger through a four-way valve, a three-way valve, a two-way valve, etc. (the hot water heat exchanger is outdoor Inside the machine), and through the four-way valve, three-way valve, two-way valve to open or close the control of refrigerant guidance, to achieve separate cooling (or dehumidification), separate heating, cooling (or dehumidification), hot water, heating system The conversion of seven functions of hot water and separate hot water makes the air conditioner and hot water heat exchanger work better.

[Description of the Drawings]

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the operation of a single refrigeration (dehumidification) according to an embodiment of the present invention.

Fig. 2 is a schematic view showing the operation of a separate heating system according to an embodiment of the present invention.

Fig. 3 is a schematic view showing the operation of the cooling (dehumidifying) hot water according to the embodiment of the present invention.

Fig. 4 is a schematic view showing the operation of the hot water making process in the embodiment of the present invention.

Fig. 5 is a schematic view showing the operation of a separate hot water supply in the embodiment of the present invention.

Fig. 6 is a schematic view showing the operation of a separate embodiment of the present invention.

【detailed description】 1 is taken as an example to describe the structure of a heat pump hot water air conditioner provided by the present invention. The heat pump hot water air conditioner comprises: a compressor 1, a three-way valve 2, a hot water heat exchanger 3, a first check valve 4, a four-way valve 5, a first heat exchanger 6, a shunt 7, and a second single The valve assembly 8, the second heat exchanger 9, the two-way valve 10, the first expansion device 11, the water pump 12, and the water flow switch 13. The exhaust end of the compressor 1 is connected to the inlet 21 of the three-way valve 2, the first outlet 22 of the three-way valve 2 is connected to the inlet 51 of the four-way valve 5, the first switching port 52 of the four-way valve 5, and the second switching port 53 The outlet 54 is connected to the first heat exchanger 6 - end, the second heat exchanger 9 end, the compressor 1 suction end; the other end of the first heat exchanger 6 is connected to the confluence port 71 of the splitter 7 , the splitter 7 The first branch port 72 is connected to one end of the branch formed by the two-way valve 10 and the first expansion device 11 in series, and the second branch port 73 of the flow divider 7 is connected to one end of the branch where the second check valve assembly 8 is located, the two-way valve 10 and the other end of the branch connected in series with the first expansion device 11 and the other end of the branch where the second check valve assembly 8 is located are connected to the other end of the second heat exchanger 9; the input end of the hot water heat exchanger 3 Connecting the second outlet 23 of the three-way valve 2, the output end is connected to the inlet 51 of the four-way valve 5 via the first one-way valve 4, and the first one-way valve 4 flows from the output end of the hot water heat exchanger to the inlet of the four-way wide 5 The direction of the water system of the hot water heat exchanger 3 (the circulation of the heated water is connected through the pipeline) is connected to the circulating water pump 12, the water system outlet and the water flow Off 13 is connected.

The second check valve assembly 8 includes a three-hole check valve 80 having a first port 81, a second port 82, and a third port 83, a second expansion device 84, and a third expansion device 85, wherein The port 82 is connected to the first expansion device 84 and connected to the second branch port 73 of the flow divider; the third port 83 is connected to the first port 81 after being connected to the third expansion device 85, and the first port 81 is connected to the second heat exchanger 9 . The three-hole check valve 80 is electrically connected from the first port to the second and third ports.

The first expansion device 11 includes an expansion valve or a capillary tube; the second expansion device 84 and the third expansion device 85 of the second one-way valve assembly 8 also include an expansion valve or a capillary tube.

Based on the above structure, by controlling the opening and closing and the specific communication mode of the four-way valve 5, the three-way valve 2, and the two-way valve 10, the heat pump hot water conditioner can be separately cooled (or dehumidified), separately heated, and cooled ( Or dehumidification) work in seven modes of hot water, heating hot water and separate hot water, which are described below.

As shown in FIG. 1, when the heat pump hot water air conditioner is operated in the separate cooling (or dehumidification) mode, the inlet 21 of the three-way valve 2 communicates with the first outlet 22, and the inlet 51 of the four-way valve 5 communicates with the first switching port 52, Valve The switching port 53 of the fifth port communicates with the outlet 54, the two-way valve 10 is closed at this time, and the first heat exchanger 6 communicates with the branch of the second check valve assembly 8 via the second branch port 73 of the flow divider 7, and then communicates with the second The heat exchanger 9, the second heat exchanger 9 is in communication with the suction port of the compressor 1 through the second switching port 53 and the outlet 54 of the four-way valve 5. The working principle is as follows: the high temperature and high pressure refrigerant gas discharged from the compressor 1 passes through the first switching port 52 of the three-way valve 2 and the four-way valve 5 to enter the first heat exchanger 6 for cooling, and the cooled refrigerant liquid passes through the second The one-way valve assembly 8 enters the second heat exchanger 9 for evaporation, absorbs internal environmental heat (water vapor), and achieves a single cooling (dehumidifying) effect, after which the refrigerant passes through the second switching port 53 and the outlet 54 of the four-way valve 5 Inhaled into the compressor 1 again.

As shown in FIG. 2, when the heat pump hot water air conditioner is operated in the separate heating mode, the inlet 21 of the three-way valve 2 communicates with the first outlet 22, and the inlet 51 of the four-way valve 5 communicates with the second switching port 53, the four-way valve The first switching port 52 of the fifth port communicates with the outlet 54, the second switching port 53 of the four-way valve 5 communicates with the second heat exchanger 9, the two-way valve 10 is closed at this time, and the second heat exchanger 9 passes through the second one-way valve. The assembly 8 is in communication with the first heat exchanger 6, which in turn communicates with the suction port of the compressor 1 via a first transition port 52 of the four-way width 5 and an outlet 54. The working principle is as follows: The high temperature and high pressure refrigerant gas discharged from the compressor 1 passes through the three-way valve ''2 and the switching port 53 of the four-way valve 5 to enter the second heat exchanger 9 for heat dissipation, thereby improving the internal environment temperature, 'after the first The two-way valve assembly 8 enters the first heat exchanger 6 for evaporation, absorbs external environmental heat, and achieves a single heating effect, after which the refrigerant is again sucked into the compressor through the first switching port 52 and the outlet 54 of the four-way valve 5. Inside.

As shown in FIG. 3, when the heat pump hot water air conditioner operates in the cooling (or dehumidification) hot water mode, the inlet 21 of the three-way valve 2 communicates with the second outlet 23, and the inlet 51 of the four-way valve 5 communicates with the first switching port. 52, the second switching port 53 of the four-way valve 5 communicates with the outlet 54, the two-way valve 10 is closed at this time, and the first heat exchanger 6 communicates with the second one-way valve assembly 8 via the second branch port 73 of the flow divider 7. The branch, which in turn communicates with the second heat exchanger 9, is in communication with the suction port of the compressor 1 through the second switching port 53 and the outlet 54 of the four-way valve 5. In this mode, the three-way valve 2 is connected to the hot water heat exchanger 3, and is connected to the inlet 51 of the four-way valve 5 via the first one-way valve 4, and its working principle is: high temperature and high pressure refrigerant gas discharged from the compressor 1 After the three-way valve 2 enters the hot water heat exchanger 3 (the circulating water pump 12 and the water flow switch 13 have been activated), the first check valve 4 and the inlet 51 of the four-way valve 5 and the first switching port 52 enter the first The heat exchanger 6 is re-cooled, and the cooled refrigerant liquid enters the second heat exchanger 9 through the second one-way valve assembly 8. The evaporation is performed to absorb the internal environmental heat (water vapor) to achieve the effect of cooling (or dehumidification) of the hot water, and then the refrigerant is again sucked into the compressor 1 through the second switching port 53 and the outlet 54 of the four-way valve 5. Wherein, when the water temperature reaches the set temperature, the three-way valve 2 3⁄4 switches, returning to the single cooling (or dehumidification) mode.

As shown in FIG. 4, when the heat pump hot water air conditioner is operating in the heating and hot water mode, the inlet 21 of the three-way valve 2 communicates with the second outlet 23, and the inlet 51 of the four-way valve 5 communicates with the second switching port 53, four The first switching port 52 of the through valve 5 communicates with the outlet 54, the second switching port 53 of the four-way valve 5 communicates with the second heat exchanger 9, the two-way valve 10 is closed at this time, and the second heat exchanger 9 passes through the second The check valve assembly 8 is in communication with the first heat exchanger 6, and the first heat exchanger 6 is in turn in communication with the suction port of the compressor 1 via the first shift port 52 and the outlet 54 of the four-way valve 5. In this mode, the three-way valve 2 is connected to the hot water heat exchanger 3, and is connected to the inlet 51 of the four-way valve 5 via the first one-way valve 4, and its working principle is: high temperature and high pressure refrigerant gas discharged from the compressor 1 Through the three-way valve 2, the hot water heat exchanger 3 (the circulating water pump 12, the water flow switch 13 has been activated) is cooled, and passes through the first check valve 4, the inlet 51 of the four-way valve 5, and the second switching port 53 to enter the second Reheating is performed in the heat exchanger 9 to increase the internal ambient temperature; the cooled refrigerant liquid enters the first heat exchanger 6 through the second check valve assembly 8 to evaporate, absorbs external environmental heat, and reaches heating and heating water. After that, the refrigerant is again sucked into the compressor 1 through the first switching port 52 and the outlet 54 of the four-way valve 5. Among them, when the water temperature reaches the set temperature, the three-way wide 2 will automatically switch back to the single heating mode.

As shown in FIG. 5, when the heat pump hot water air conditioner is operated in the separate hot water mode, the inlet 21 of the three-way valve 2 communicates with the second outlet 23, and the inlet 51 of the four-way valve 5 communicates with the second switching port 53, the four-way The first switching port 52 of the valve 5 communicates with the outlet 54, the second switching port 53 of the four-way wide 5 communicates with the second heat exchanger 9, the two-way valve 10 is opened at this time, and the second heat exchanger 9 passes through the second one-way. The branch in which the valve assembly 8 is located and the branch in which the two-way valve 10 and the first expansion device 1 are connected in series are in communication with the first heat exchanger 6, and the first heat exchanger 6 is further passed through the first switching port of the four-way valve 5. 52. The outlet 54 is in communication with the suction port of the compressor 1. In this mode, the three-way valve 2 is connected to the hot water heat exchanger 3, and is connected to the inlet 51 of the four-way valve 5 via the first check valve 4. The working principle of this mode is: The high temperature and high pressure refrigerant gas discharged from the compressor 1 passes through the three-way valve 2, enters the hot water heat exchanger 3 to be completely cooled, so that the water temperature rises, and the cooled refrigerant liquid passes through the first single The valve 4, the inlet 51 of the four-way valve 5, and the second switching port 53 enter the second heat exchanger 9 (there is no heat dissipation at this time), and the refrigerant passes through the branch of the second check valve assembly 8 and the two-way valve simultaneously. 10 and first The branch formed by the expansion device 11 in series enters the first heat exchanger 6 for evaporation, absorbs external environmental heat, and achieves a single hot water effect, after which the refrigerant passes through the first switching port 52 and the outlet 54 of the four-way valve 5 again. Suction into the compressor 1.

There are other variations of the present invention. As shown in FIG. 6, a third check valve 15 is connected in series on the branch of the two-way valve 10 and the first expansion device 11 in series. The third check valve 15 is connected in series. The flow from the second branch port to the other end of the second heat exchanger is cut off.

Claims

Rights request

1. A heat pump hot water air conditioner comprising: a compressor (1), a four-way valve (5), a first heat exchanger (6) and a second heat exchanger (9), and a four-way valve (5) The first switching port (52), the second switching port (53), and the outlet (54) are respectively connected to the first heat exchanger (6) end, the second heat exchanger (9) end, and the compressor (1) is inhaled. The other end of the first heat exchanger (6) is connected to the other end of the second heat exchanger (9); and is characterized by: further comprising a three-way valve (2), a hot water heat exchanger (3) and the first Check valve

(4); The exhaust end of the compressor (1) is connected to the inlet (21) of the three-way valve (2), and the first outlet (22) of the three-way valve (2) is connected to the inlet of the four-way valve (5) (51) The input end of the hot water heat exchanger (3) is connected to the second outlet (23) of the three-way valve (2), and the output end is connected to the four-way valve via the first one-way valve (4)

(5) Entrance (51); The water system of the hot water heat exchanger (3) is connected to the water source.

2. The heat pump hot water conditioner according to claim 1, wherein: said first heat exchanger

The other end of (6) is connected to the other end of the second heat exchanger (9) through a flow divider (7), a second check valve assembly (8), a two-way valve (10) and a first expansion device (11). The specific connection manner is as follows: the other end of the first heat exchanger (6) is connected to the confluence port (71) of the flow divider (7), and the first branch port (72) of the flow divider (7) is connected to the two-way valve (10) a first branch of the branch formed by the first expansion device (11), and a second branch port (73) of the flow divider (7) connected to one end of the branch where the second check valve assembly (8) is located, the two-way valve ( 10) The other end of the branch formed in series with the first expansion device (11) and the other end of the branch where the second check valve assembly (8) is located are connected to the other end of the second heat exchanger (9).

The heat pump hot water conditioner according to claim 2, wherein: the second unidirectional wide module (8) comprises a first port (81), a second port (82), and a third port. (83) a three-hole check valve (80), a second expansion device (84), and a third expansion device (85), wherein the second port (82) is connected to the second expansion device (84) and the flow divider The two branch ports (72) are connected; the third port (83) is connected to the first port (81) after being connected to the third expansion device (85), and the first port (81) is connected to the second heat exchanger (9).

4. The heat pump hot water conditioner according to claim 3, wherein: said three-hole check valve (80) is electrically connected from the first port to the second and third ports.

The heat pump hot water conditioner according to claim 2, wherein the first "expansion device (11) is an expansion valve or a capillary tube.

The heat pump hot water conditioner according to claim 2, wherein: the second expansion device (84) and the third expansion device (85) of the second one-way valve assembly (8) are expansion valves Or capillary.

7. The heat pump hot water conditioner according to claim 1, wherein: said hot water heat exchanger

The inlet of the water system (3) is connected to the circulating water pump (12), and the outlet of the water system is connected to the water flow switch (13).

8. The heat pump hot water conditioner according to claim 1, wherein: said first check valve

(4) Conducting from the output end of the hot water heat exchanger (3) to the inlet of the four-way valve (5).