Air conditioner heat pump device

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner heat pump device. The air conditioner heat pump system aims at solving the problems that an existing air conditioner heat pump system is low in heating energy efficiency, and the heating experience of a user is affected. In order to achieve the purpose, the air conditioner heat pump device comprises a compressor, a four-way valve, a first heat exchanger, a second heat exchanger, an ejector, a gas-liquid separator, a first throttling device, a second throttling device and a heating pipeline, the ejector, the gas-liquid separator and the second throttling device form an ejection refrigeration loop, and a refrigerant can be directly introduced into the heating pipeline. By the adoption of the technical scheme, the refrigerant directly enters the heating pipeline to release heat, the heat exchange efficiency is improved through direct heat exchange, heat loss caused by heat exchange through water and the refrigerant in a traditional air conditioner heat pump device is avoided, the heating experience of a user is guaranteed, and the heating energy efficiency of an air conditioner is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely relates to an air conditioner heat pump device. BACKGROUND

[0002] The air conditioner heat pump system is a system that realizes indoor cooling and heating supply by using heat pump technology, can provide better living environment and working environment for users in different seasons, and with the development and progress of technology, some air conditioner heat pump systems can realize indoor heating through the floor heating system.

[0003] But in the prior art, when heating the indoor, mainly through the refrigerant-water heat exchanger to transfer the heat of refrigerant to the waterway of the floor heating system, but the heat exchange efficiency of this kind of heat exchange mode is low, on the one hand, it will affect the user's heating experience, on the other hand, it will also lead to the decrease of the heating energy efficiency of the air conditioner heat pump system.

[0004] Correspondingly, the prior art needs a new technical scheme to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to solve at least one of the above problems in the prior art, that is, to solve the problem of low heating energy efficiency of the existing air conditioner heat pump system and affect the user's heating experience, the present application provides an air conditioner heat pump device, which comprises a compressor 1, a four-way valve 2, a first heat exchanger 31, a second heat exchanger 32, an ejector 5, a gas-liquid separator 6, a first throttling device 41, a second throttling device 42 and a heating pipeline 7, the first interface a of the four-way valve 2 is communicated with the exhaust port of the compressor 1, the second interface b of the four-way valve 2 is communicated with the exhaust port of the gas-liquid separator 6 and the inlet of the heating pipeline 7, the third interface c of the four-way valve 2 is communicated with the suction port of the compressor 1, and the fourth interface d of the four-way valve 2 is communicated with the first port of the first heat exchanger 31.

[0006] The exhaust port of the ejector 5 is communicated with the gas inlet of the gas-liquid separator 6, the liquid outlet of the gas-liquid separator 6 is communicated with the first port of the second throttling device 42, the second port of the second throttling device 42 is communicated with the first port of the second heat exchanger 32, and the second port of the second heat exchanger 32 is communicated with the suction port of the ejector 5.

[0007] The second port of the first heat exchanger 31 is respectively communicated with the gas inlet of the ejector 5 and the outlet of the heating pipeline 7, and the first throttling device 41 is arranged on the pipeline between the second port of the first heat exchanger 31 and the outlet of the heating pipeline 7.

[0008] With the above technical solution, the refrigerant can directly enter the heating pipe 7 for heating, thereby improving the heat exchange efficiency through direct heat exchange. This avoids the heat loss caused by heat exchange between water and refrigerant in traditional air conditioning heat pump devices, ensuring the user's heating experience and improving the heating efficiency of the air conditioner.

[0009] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the air conditioning heat pump device further includes a third heat exchanger 33, the first port of the third heat exchanger 33 is connected to the exhaust port of the ejector 5, and the second port of the third heat exchanger 33 is connected to the air inlet of the gas-liquid separator 6.

[0010] With the above technical solution, the third heat exchanger 33 can act as a medium-temperature heat exchanger to transfer cooling capacity to the room, thereby improving the cooling efficiency of the air conditioner.

[0011] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the air conditioning heat pump device further includes a regenerator 8, wherein a passage is formed between the first port and the second port of the regenerator 8, and a passage is formed between the third port and the fourth port of the regenerator 8.

[0012] The first port of the regenerator 8 is connected to the second port of the first heat exchanger 31. The second port of the regenerator 8 is connected to the air inlet of the ejector 5 and the outlet of the heating pipe 7, respectively. The third port of the regenerator 8 is connected to the third interface c of the four-way valve 2. The fourth port of the regenerator 8 is connected to the air intake of the compressor 1.

[0013] With the above technical solution, the regenerator 8 can achieve subcooling and superheating of the refrigerant, thereby improving the cooling efficiency of the air conditioner.

[0014] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the air conditioning heat pump device further includes a first control valve 91, the second port of the first heat exchanger 31 is connected to the first port of the first control valve 91 and the first port of the first throttling device 41 respectively, the second port of the first control valve 91 is connected to the air inlet of the ejector 5, and the second port of the first throttling device 41 is connected to the outlet of the heating pipe 7.

[0015] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the second port b of the four-way valve 2 is connected to the exhaust port of the gas-liquid separator 6, and the drain port of the gas-liquid separator 6 is connected to the first port of the second throttling device 42 and the inlet of the heating pipe 7, respectively.

[0016] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the air conditioning heat pump device further includes a dryer filter 10, the first port of the dryer filter 10 is connected to the drain port of the gas-liquid separator 6, and the second port of the dryer filter 10 is connected to the first port of the second throttling device 42 and the inlet of the heating pipe 7, respectively.

[0017] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the air conditioning heat pump device further includes a second control valve 92. The drain port of the gas-liquid separator 6 is connected to the first port of the second heat exchanger 32 and the first port of the second control valve 92, respectively. The second port of the second control valve 92 is connected to the inlet of the heating pipe 7.

[0018] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the air conditioning heat pump device further includes a third control valve 93, the first port of the third control valve 93 is connected to the exhaust port of the injector 5, and the second port of the third control valve 93 is connected to the air inlet of the gas-liquid separator 6.

[0019] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the second control valve 92 is configured as a solenoid valve; and / or

[0020] The third control valve 93 is configured as a one-way valve.

[0021] In the preferred embodiment of the above-mentioned air conditioning heat pump device, the refrigerant used in the air conditioning heat pump device is CO2.

[0022] With the above technical solution, CO2 as a refrigerant will not cause harm to the environment, and its heating performance is outstanding. Attached Figure Description

[0023] The air conditioning heat pump device of this application will now be described with reference to the accompanying drawings. In the drawings:

[0024] Figure 1 This is a schematic diagram of the air conditioning heat pump device of this application.

[0025] List of reference numerals

[0026] 1. Compressor; 2. Four-way valve; a. First port; b. Second port; c. Third port; d. Fourth port; 31. First heat exchanger; 32. Second heat exchanger; 33. Third heat exchanger; 41. First throttling device; 42. Second throttling device; 5. Ejector; 6. Gas-liquid separator; 7. Heating pipe; 8. Regenerator; 91. First control valve; 92. Second control valve; 93. Third control valve; 10. Dryer filter. Detailed Implementation

[0027] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. For example, although the heating pipe 7 is described in conjunction with an underfloor heating coil in this embodiment, this is not intended to limit the scope of protection of this application. Those skilled in the art can apply this application to other application scenarios without departing from the principles of this application. For example, the heating pipe 7 can be configured as a radiator.

[0028] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in the description of this application, "a plurality of" refers to at least two.

[0029] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] As described in the background section, an air conditioning heat pump system is a system that uses heat pump technology to provide indoor heating and cooling. It can provide users with a better living and working environment in different seasons. Furthermore, with the development and advancement of technology, some air conditioning heat pump systems can achieve indoor heating through underfloor heating systems.

[0031] However, in the existing technology, when heating the room, the heat of the refrigerant is mainly transferred to the water circuit of the underfloor heating system through a refrigerant-water heat exchanger. However, the heat exchange efficiency of this heat exchange method is low, which will affect the user's heating experience on the one hand, and will also reduce the heating energy efficiency of the air conditioning heat pump system on the other hand.

[0032] To address the issues of low heating efficiency and negative impact on user heating experience in existing air conditioning heat pump systems, this application provides an air conditioning heat pump device. The device includes a compressor 1, a four-way valve 2, a first heat exchanger 31, a second heat exchanger 32, an ejector 5, a gas-liquid separator 6, a first throttling device 41, a second throttling device 42, and a heating pipe 7. The first port a of the four-way valve 2 is connected to the exhaust port of the compressor 1; the second port b of the four-way valve 2 is connected to the exhaust port of the gas-liquid separator 6 and the inlet of the heating pipe 7; the third port c of the four-way valve 2 is connected to the suction port of the compressor 1; and the fourth port d of the four-way valve 2 is connected to the first port of the first heat exchanger 31. The exhaust port of the ejector 5 is connected to the inlet of the gas-liquid separator 6; the drain port of the gas-liquid separator 6 is connected to the first port of the second throttling device 42; the second port of the second throttling device 42 is connected to the first port of the second heat exchanger 32; and the second port of the second heat exchanger 32 is connected to the suction port of the ejector 5. The second port of the first heat exchanger 31 is connected to the air inlet of the ejector 5 and the outlet of the heating pipe 7, respectively, and the first throttling device 41 is provided on the pipe between the second port of the first heat exchanger 31 and the outlet of the heating pipe 7.

[0033] With the above technical solution, the refrigerant can directly enter the heating pipe 7 for heating, thereby improving the heat exchange efficiency through direct heat exchange. This avoids the heat loss caused by heat exchange between water and refrigerant in traditional air conditioning heat pump devices, ensuring the user's heating experience and improving the heating efficiency of the air conditioner.

[0034] The following reference Figure 1 The air conditioning heat pump device of this application will now be described. Figure 1 This is a schematic diagram of the air conditioning heat pump device of this application.

[0035] like Figure 1 As shown, in a preferred embodiment, the air conditioning heat pump device includes a compressor 1, a four-way valve 2, a first heat exchanger 31, a second heat exchanger 32, a third heat exchanger 33, a first throttling device 41, a second throttling device 42, an ejector 5, a gas-liquid separator 6, heating pipes 7, a regenerator 8, a first control valve 91, a second control valve 92, and a third control valve 93. The refrigerant used in the refrigerant system is CO2. The first and second control valves 91 and 92 are solenoid valves, the third control valve 93 is a check valve, fans are installed at both the first heat exchanger 31 and the second heat exchanger 32, and the heating pipes 7 are floor heating coils.

[0036] The first port a of the four-way valve 2 is connected to the exhaust port of the compressor 1; the second port b of the four-way valve 2 is connected to the exhaust port of the gas-liquid separator 6; the third port c of the four-way valve 2 is connected to the third port (lower right port in the diagram) of the regenerator 8; the fourth port (upper right port in the diagram) of the regenerator 8 is connected to the suction port of the compressor 1; the fourth port d of the four-way valve 2 is connected to the first port (right side port in the diagram) of the first heat exchanger 31; the second port (left side port in the diagram) of the first heat exchanger 31 is connected to the first port (upper left port in the diagram) of the regenerator 8; and the second port (lower left port in the diagram) of the regenerator 8 is connected to the first port (left side port in the diagram) of the first control valve 91 and the first port (left side port in the diagram) of the first throttling device 41, respectively.

[0037] The second port (right port in the diagram) of the first throttling device 41 is connected to the air inlet of the injector 5. The exhaust port of the injector 5 is connected to the first port (left port in the diagram) of the third heat exchanger 33. The second port (right port in the diagram) of the third heat exchanger 33 is connected to the first port (left port in the diagram) of the third control valve. The second port (right port in the diagram) of the third control valve is connected to the air inlet of the gas-liquid separator 6. The drain port of the gas-liquid separator 6 is connected to the first port (right port in the diagram) of the dryer filter 10. The second port (left port in the diagram) of the dryer filter 10 is connected to the first port (right port in the diagram). The first port of the second throttling device 42 (right port in the diagram direction) and the first port of the second control valve 92 (upper port in the diagram direction) are respectively connected to the first port of the second throttling device 42 (left port in the diagram direction) and the first port of the second heat exchanger 32 (right port in the diagram direction). The second port of the second heat exchanger 32 (left port in the diagram direction) is connected to the suction port of the ejector 5. The second port of the second control valve 92 (lower port in the diagram direction) is connected to the inlet of the heating pipe 7. The outlet of the heating pipe 7 is connected to the second port of the first throttling device 41 (right port in the diagram direction).

[0038] In cooling mode, the first port a of the four-way valve 2 is connected to the fourth port d, the second port b of the four-way valve 2 is connected to the third port c, the first throttling device 41 is kept fully closed, the second throttling device 42 is opened to a certain degree, the first control valve 91 is kept open, and the second control valve 92 is kept closed.

[0039] Compressor 1 compresses the refrigerant into a high-temperature, high-pressure refrigerant gas. This gas first passes through the first port a and the fourth port d of the four-way valve 2 before entering the first heat exchanger 31, where it releases heat via its corresponding fan. The refrigerant is then subcooled by the regenerator 8. Next, the refrigerant enters the ejector 5 as a motive fluid through the first control valve 91. Simultaneously, the ejector 5 draws in the refrigerant gas generated by the heat absorption of the second heat exchanger 32. The gas-liquid two-phase refrigerant mixes and is then ejected through the ejector 5 to the third heat exchanger 33. In the third heat exchanger 33, the refrigerant absorbs heat and vaporizes. Because the refrigerant can absorb heat... The refrigerant mixture is not fully mixed, so that it enters the gas-liquid separator 6 through the one-way valve. The separated gaseous refrigerant is overheated through the second port b and the third port c of the four-way valve 2 and the third port and the fourth port of the regenerator 8 before returning to the compressor 1. The separated liquid refrigerant is throttled and depressurized through the dryer filter 10 and the second throttling device 42 before entering the second heat exchanger 32 to continue absorbing heat. The refrigerant after heat exchange is drawn into the air intake of the ejector 5, and this cycle is repeated to complete the refrigeration. The cooling capacity of the second heat exchanger 32 and the third heat exchanger 33 is transferred to the room through the corresponding fans.

[0040] In heating mode, the first port a of the four-way valve 2 is connected to the second port b, the third port c of the four-way valve 2 is connected to the fourth port d, the first throttling device 41 is opened to a certain degree, the second throttling device 42 is kept fully closed, the first control valve 91 is kept closed, and the second control valve 92 is kept open.

[0041] Compressor 1 compresses the refrigerant into high-temperature, high-pressure refrigerant gas. The high-temperature, high-pressure refrigerant gas passes sequentially through the first port a and the second port b of the four-way valve 2, the gas-liquid separator 6, the dryer filter 10, and the second control valve 92 before entering the heating pipe 7 to release heat. Then, the refrigerant passes sequentially through the throttling and pressure reduction of the first throttling device 41, the regenerator 8, and enters the first heat exchanger 31, where it absorbs heat through its corresponding fan. Finally, the refrigerant returns to compressor 1 after passing through the fourth port d and the third port c of the four-way valve 2, and the third and fourth ports of the regenerator 8.

[0042] It should be explained that the refrigerant flow direction in heating mode is not fixed. Those skilled in the art can modify it according to needs, as long as it does not affect the normal function of this application. In an alternative embodiment, the inlet of the heating pipe 7 can be directly connected to the second port b of the four-way valve 2. In this case, the refrigerant will not flow through the gas-liquid separator 6 and the dryer filter 10. In addition, during cooling, the refrigerant temperature in the second heat exchanger 32 is lower than the refrigerant temperature in the third heat exchanger 33. Therefore, the setting of the third heat exchanger 33 is not necessary. The exhaust port of the ejector 5 can be directly connected to the air inlet of the gas-liquid separator 6. However, considering the improvement of cooling efficiency, setting the third heat exchanger 33 is a better choice. Furthermore, the setting of the regenerator 8 is not necessary. However, considering the improvement of the air conditioner's cooling efficiency by achieving subcooling and superheating through the regenerator 8, setting the regenerator 8 is a better choice.

[0043] It should also be explained that the installation of the first control valve 91, the second control valve 92, and the third control valve 93 is not mandatory. In one alternative embodiment, the first control valve 91 or the second control valve 92 can be replaced with a three-way valve or a two-way valve such as an electric ball valve or an electric butterfly valve, which can still achieve control over the refrigerant flow. In another alternative embodiment, the third control valve 93 can be replaced with a solenoid valve, a three-way valve, or a two-way valve such as an electric ball valve or an electric butterfly valve. Alternatively, if the inlet of the underfloor heating pipe is directly connected to the second port b of the four-way valve 2, the third control valve 93 can be omitted. Furthermore, the installation of the first throttling device 41 is not fixed. In one alternative embodiment, the first throttling device 41 can also be installed on the pipe between the second port of the first heat exchanger 31 and the first port of the regenerator 8. In another alternative embodiment, the first throttling device 41 can be directly installed at the second port of the regenerator 8, in which case an additional two-way valve is used to control the opening and closing of the heating pipe 7.

[0044] Those skilled in the art will understand that, in this embodiment, the dryer filter 10 can be used to absorb moisture and impurities in the refrigerant, but its installation is not mandatory. Furthermore, in this embodiment, CO2 is used as the refrigerant and does not harm the environment, and it has excellent heating performance; however, its installation is also not mandatory, and those skilled in the art can replace it with other refrigerants as needed. Of course, the configuration of the heating pipe 7 is not fixed; in an alternative embodiment, the heating pipe 7 can be replaced with radiators, etc.

[0045] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0046] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. An air conditioning and heat pump apparatus, characterized by comprising: The air-conditioning heat pump device comprises a compressor (1), a four-way valve (2), a first heat exchanger (31), a second heat exchanger (32), an ejector (5), a gas-liquid separator (6), a first throttling device (41), a second throttling device (42) and a heating pipeline (7), a first interface (a) of the four-way valve (2) is communicated with a discharge port of the compressor (1), a second interface (b) of the four-way valve (2) is communicated with a discharge port of the gas-liquid separator (6) and an inlet of the heating pipeline (7), a third interface (c) of the four-way valve (2) is communicated with a suction port of the compressor (1), a fourth interface (d) of the four-way valve (2) is communicated with a first port of the first heat exchanger (31); a discharge port of the ejector (5) is communicated with an inlet of the gas-liquid separator (6), a liquid outlet of the gas-liquid separator (6) is communicated with a first port of the second throttling device (42), a second port of the second throttling device (42) is communicated with a first port of the second heat exchanger (32), a second port of the second heat exchanger (32) is communicated with a suction port of the ejector (5); a second port of the first heat exchanger (31) is respectively communicated with an inlet of the ejector (5) and an outlet of the heating pipeline (7), and the first throttling device (41) is arranged on a pipeline between the second port of the first heat exchanger (31) and the outlet of the heating pipeline (7).

2. The air conditioning and heat pump apparatus according to claim 1, wherein The air-conditioning heat pump device further comprises a third heat exchanger (33), a first port of the third heat exchanger (33) is communicated with a discharge port of the ejector (5), and a second port of the third heat exchanger (33) is communicated with an inlet of the gas-liquid separator (6).

3. The air conditioning and heat pump apparatus according to claim 1, wherein The air-conditioning heat pump device further comprises a heat regenerator (8), a passage is formed between a first port and a second port of the heat regenerator (8), and a passage is formed between a third port and a fourth port of the heat regenerator (8); the first port of the heat regenerator (8) is communicated with the second port of the first heat exchanger (31), the second port of the heat regenerator (8) is respectively communicated with the inlet of the ejector (5) and the outlet of the heating pipeline (7), the third port of the heat regenerator (8) is communicated with the third interface (c) of the four-way valve (2), and the fourth port of the heat regenerator (8) is communicated with the suction port of the compressor (1).

4. The air conditioning and heat pump apparatus according to claim 1, wherein The air-conditioning heat pump device further comprises a first control valve (91), the second port of the first heat exchanger (31) is respectively communicated with the first port of the first control valve (91) and the first port of the first throttling device (41), the second port of the first control valve (91) is communicated with the inlet of the ejector (5), and the second port of the first throttling device (41) is communicated with the outlet of the heating pipeline (7).

5. The air conditioning and heat pump apparatus according to claim 1, wherein The second interface (b) of the four-way valve (2) is communicated with the discharge port of the gas-liquid separator (6), and the liquid outlet of the gas-liquid separator (6) is respectively communicated with the first port of the second throttling device (42) and the inlet of the heating pipeline (7).

6. The air conditioning and heat pump apparatus according to claim 5, wherein The air-conditioning heat pump device further comprises a dry filter (10), a first port of the dry filter (10) is communicated with a liquid outlet of the gas-liquid separator (6), and a second port of the dry filter (10) is respectively communicated with a first port of the second throttling device (42) and an inlet of the heating pipeline (7).

7. The air conditioning and heat pump apparatus according to claim 5, wherein The air-conditioning heat pump device further comprises a second control valve (92), the liquid outlet of the gas-liquid separator (6) is respectively communicated with a first port of the second heat exchanger (32) and a first port of the second control valve (92), and a second port of the second control valve (92) is communicated with the inlet of the heating pipeline (7).

8. The air conditioning and heat pump apparatus according to claim 7, wherein The air-conditioning heat pump device further comprises a third control valve (93), a first port of the third control valve (93) is communicated with the exhaust port of the ejector (5), and a second port of the third control valve (93) is communicated with the gas inlet of the gas-liquid separator (6).

9. The air conditioning and heat pump apparatus according to claim 8, wherein The second control valve (92) is an electromagnetic valve; and / or The third control valve (93) is a one-way valve.

10. The air conditioning and heat pump apparatus according to claim 1, wherein The air-conditioning heat pump device adopts CO2 as the refrigerant.

Images