Refrigerating system and air conditioner

Abstract

According to the refrigerating system, a rotor type compressor comprises a compressor body and a liquid storage device, an air suction port of the compressor body is communicated with an air outlet of the liquid storage device, and a heat regenerator is arranged in the liquid storage device; one end of the indoor heat exchanger communicates with one end of the outdoor heat exchanger through a heat regeneration loop, and the heat regeneration loop communicates with a heat regeneration inlet and a heat regeneration outlet of the heat regenerator. A first valve port of the reversing assembly communicates with an exhaust port of the compressor body, a second valve port of the reversing assembly communicates with the other end of the indoor heat exchanger, a third valve port of the reversing assembly communicates with an air inlet of the liquid storage device, and a fourth valve port of the reversing assembly communicates with the other end of the outdoor heat exchanger. The first valve port is communicated with one of the second valve port and the fourth valve port, and the third valve port is communicated with the other one of the second valve port and the fourth valve port. According to the refrigerating system, the energy efficiency ratio can be increased, the working reliability can be ensured, the compact structure can be ensured, and the occupied space can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air treatment equipment, and more specifically, to a refrigeration system and an air conditioner. Background Art

[0002] In the related art, a refrigeration system includes a compressor, an evaporator and a condenser. After the refrigerant discharged from the compressor is condensed by the condenser, it flows through the evaporator and evaporates into the compressor to complete a cycle. However, the refrigeration system has low working efficiency and high energy consumption. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a refrigeration system which can improve the energy efficiency ratio, ensure the working reliability, and ensure the compact structure, which is beneficial to reducing the occupied space.

[0004] Another object of the utility model is to provide an air conditioner with the above refrigeration system.

[0005] The refrigeration system according to an embodiment of the utility model includes: a rotary compressor, which includes a compressor body and a liquid receiver. The compressor body has an exhaust port and a suction port. The liquid receiver has an inlet and an outlet. The suction port is communicated with the outlet. A regenerator is arranged in the liquid receiver, and the regenerator has a regeneration inlet and a regeneration outlet; an indoor heat exchanger and an outdoor heat exchanger. One end of the indoor heat exchanger is communicated with one end of the outdoor heat exchanger through a regeneration circuit, and the regeneration circuit is communicated with the regeneration inlet and the regeneration outlet; a commutation component, which has a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port is communicated with the exhaust port, the second valve port is communicated with the other end of the indoor heat exchanger, the third valve port is communicated with the inlet, the fourth valve port is communicated with the other end of the outdoor heat exchanger. The first valve port is communicated with one of the second valve port and the fourth valve port, and the third valve port is communicated with the other of the second valve port and the fourth valve port.

[0006] According to the refrigeration system of the embodiments of the present utility model, the rotary compressor includes a compressor body and a liquid receiver. The suction port of the compressor body is communicated with the outlet port of the liquid receiver. A regenerator is arranged in the liquid receiver. One end of the indoor heat exchanger and one end of the outdoor heat exchanger are communicated through a heat regeneration circuit. The heat regeneration circuit is communicated with the heat regeneration inlet and the heat regeneration outlet of the regenerator, so that the refrigerant flowing out from the indoor heat exchanger and / or the outdoor heat exchanger can enter the regenerator through the heat regeneration circuit to exchange heat with the refrigerant in the liquid receiver, and heat exchange can be carried out by using the heat difference of the refrigerant, effectively improving the energy efficiency ratio of the refrigeration system, being beneficial to optimizing the refrigeration system cycle, and ensuring the working reliability of the refrigeration system. At the same time, by adopting a rotary compressor and integrating the regenerator into the liquid receiver, the structure of the refrigeration system is more integrated, the structural space can be saved, and the occupied space can be reduced.

[0007] In addition, the refrigeration system according to the above embodiments of the present utility model may further have the following additional technical features:

[0008] According to some embodiments of the present utility model, the heat regeneration circuit includes: a first flow path and a second flow path, both the first flow path and the second flow path are communicated with one end of the outdoor heat exchanger and one end of the indoor heat exchanger; a first branch flow path, one end of the first branch flow path is communicated with the first flow path and the other end is communicated with the heat regeneration inlet; a second branch flow path, one end of the second branch flow path is communicated with the second flow path and the other end is communicated with the heat regeneration outlet; a first control valve, the first control valve is arranged on the first flow path. In the refrigeration mode, the first control valve communicates the outdoor heat exchanger and the heat regeneration inlet and disconnects the communication between the indoor heat exchanger and the outdoor heat exchanger. In the heating mode, the first control valve communicates the indoor heat exchanger and the heat regeneration inlet and disconnects the communication between the indoor heat exchanger and the outdoor heat exchanger; a second control valve, the second control valve is arranged on the second flow path. In the refrigeration mode, the second control valve communicates the indoor heat exchanger and the heat regeneration outlet and disconnects the communication between the indoor heat exchanger and the outdoor heat exchanger. In the heating mode, the second control valve communicates the outdoor heat exchanger and the heat regeneration outlet and disconnects the communication between the indoor heat exchanger and the outdoor heat exchanger.

[0009] According to some embodiments of the present utility model, the first control valve includes: a first check valve, the first check valve is arranged on the first flow path and is located between the outdoor heat exchanger and the first branch flow path, and the first check valve is used to control the refrigerant to only flow from the outdoor heat exchanger to the heat regeneration inlet; a second check valve, the second check valve is arranged on the first flow path and is arranged at an interval with the first check valve, the second check valve is located between the indoor heat exchanger and the first branch flow path, and the first check valve is used to control the refrigerant to only flow from the indoor heat exchanger to the heat regeneration inlet.

[0010] According to some embodiments of the present utility model, the second control valve includes: a third check valve disposed on the second flow path between the outdoor heat exchanger and the second branch flow path, the third check valve being configured to control the refrigerant to flow only from the regenerative outlet to the outdoor heat exchanger; a fourth check valve disposed on the second flow path and spaced apart from the third check valve, the fourth check valve being located between the indoor heat exchanger and the second branch flow path, the fourth check valve being configured to control the refrigerant to flow only from the regenerative outlet to the indoor heat exchanger.

[0011] According to some embodiments of the present utility model, an expansion valve is provided on the second branch flow path.

[0012] According to some embodiments of the present utility model, the regenerator is a coil heat exchanger.

[0013] According to some embodiments of the present utility model, the refrigeration system further includes: stop valves provided between the indoor heat exchanger and the regenerative circuit and the second valve port respectively.

[0014] According to some embodiments of the present utility model, the outer peripheral wall of the compressor body is fixedly connected to the outer peripheral wall of the liquid receiver.

[0015] The air conditioner according to the embodiment of the present utility model includes the refrigeration system according to the embodiment of the present utility model.

[0016] For the air conditioner according to the embodiment of the present utility model, the scroll compressor includes a compressor body and a liquid receiver. The suction port of the compressor body is communicated with the outlet port of the liquid receiver. A regenerator is provided in the liquid receiver. One end of the indoor heat exchanger is communicated with one end of the outdoor heat exchanger through a regenerative circuit. The regenerative circuit communicates the regenerative inlet and the regenerative outlet of the regenerator, so that the refrigerant flowing out from the indoor heat exchanger and / or the outdoor heat exchanger can enter the regenerator through the regenerative circuit to exchange heat with the refrigerant in the liquid receiver, enabling heat exchange to be carried out by utilizing the heat difference of the refrigerant, effectively improving the energy efficiency ratio of the refrigeration system, facilitating the optimization of the refrigeration system cycle, and ensuring the working reliability of the refrigeration system. At the same time, by adopting a scroll compressor and integrating the regenerator into the liquid receiver, the structure of the refrigeration system is more integrated, which can save structural space and is beneficial to reducing the occupied space.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of a refrigeration system according to an embodiment of the present invention. Among them, the first valve port is communicated with the fourth valve port, and the third valve port is communicated with the second valve port;

[0020] Figure 2 is a schematic structural diagram of a refrigeration system according to an embodiment of the present invention. Among them, the first valve port is communicated with the second valve port, and the third valve port is communicated with the fourth valve port.

[0021] Reference numerals:

[0022] 100, refrigeration system;

[0023] 10, rotary compressor; 11, compressor body; 12, liquid receiver; 13, regenerator; 111, exhaust port; 112, suction port; 121, inlet port; 122, outlet port; 131, regeneration inlet; 132, regeneration outlet;

[0024] 21, indoor heat exchanger; 22, outdoor heat exchanger;

[0025] 30, regeneration circuit; 31, first flow path; 32, second flow path; 33, first branch flow path; 34, second branch flow path; 35, first control valve; 36, second control valve; 341, expansion valve; 351, first check valve; 352, second check valve; 361, third check valve; 362, fourth check valve;

[0026] 40, commutation assembly; 41, first valve port; 42, second valve port; 43, third valve port; 44, fourth valve port;

[0027] 50, stop valve. Detailed implementation manners

[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. The meaning of "a plurality" is two or more. The first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. The first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0031] The refrigeration system 100 according to an embodiment of the present utility model will be described below with reference to the drawings.

[0032] Refer to Figure 1 And Figure 2 As shown, the refrigeration system 100 according to an embodiment of the present utility model may include: a rotary compressor 10, an indoor heat exchanger 21, an outdoor heat exchanger 22 and a reversing assembly 40.

[0033] Specifically, the rotary compressor 10 includes a compressor body 11 and a liquid receiver 12. The compressor body 11 has an exhaust port 111 and a suction port 112. The liquid receiver 12 has an inlet port 121 and an outlet port 122. The suction port 112 and the outlet port 122 are communicated. The refrigerant can enter the liquid receiver 12 through the inlet port 121 for storage. The refrigerant in the liquid receiver 12 can enter the compressor body 11 through the outlet port 122 and the suction port 112 for compression, and the compressed refrigerant can flow out of the compressor body 11 through the exhaust port 111, realizing the compression requirement of the rotary compressor 10 for the refrigerant. At the same time, by adopting the rotary compressor 10, the structure of the refrigeration system 100 can be more integrated and compact, reducing the occupied space and being beneficial to reducing the production cost.

[0034] As Figure 1 And Figure 2As shown, the reversing assembly 40 has a first valve port 41, a second valve port 42, a third valve port 43, and a fourth valve port 44. The first valve port 41 is communicated with the exhaust port 111. The second valve port 42 is communicated with the other end of the indoor heat exchanger 21. The third valve port 43 is communicated with the intake port 121. The fourth valve port 44 is communicated with the other end of the outdoor heat exchanger 22. The first valve port 41 is communicated with one of the second valve port 42 and the fourth valve port 44, that is, the first valve port 41 can be communicated with the second valve port 42, or the first valve port 41 can be communicated with the fourth valve port 44. The third valve port 43 is communicated with the other of the second valve port 42 and the fourth valve port 44, that is, the third valve port 43 can be communicated with the second valve port 42, or the third valve port 43 can be communicated with the fourth valve port 44, which can realize the communication between the indoor heat exchanger 21, the outdoor heat exchanger 22, the reversing assembly 40 and the rotary compressor 10, meeting the required communication requirements. For example, the reversing assembly 40 can be a four-way reversing valve.

[0035] Thus, by controlling the reversing assembly 40, the refrigerant compressed by the rotary compressor 10 can flow through the indoor heat exchanger 21 and the outdoor heat exchanger 22, realizing the user's usage requirements, such as realizing the refrigeration function and the heating function of the refrigeration system 100, improving the versatility and flexibility of the refrigeration system 100.

[0036] In addition, as Figure 1 shown in Figure 2 As shown, a regenerator 13 is provided in the liquid receiver 12. The regenerator 13 has a regeneration inlet 131 and a regeneration outlet 132. One end of the indoor heat exchanger 21 and one end of the outdoor heat exchanger 22 are communicated through a regeneration circuit 30. The regeneration circuit 30 communicates the regeneration inlet 131 and the regeneration outlet 132, so that the refrigerant flowing out of the indoor heat exchanger 21 and / or the outdoor heat exchanger 22 can enter the regenerator 13 through the regeneration circuit 30 to exchange heat with the refrigerant in the liquid receiver 12, thereby being able to perform heat exchange by using the heat difference of the refrigerant, effectively improving the energy efficiency ratio of the refrigeration system 100, being beneficial to optimizing the cycle of the refrigeration system 100, and ensuring the working reliability of the refrigeration system 100. At the same time, the regenerator 13 is integrated into the liquid receiver 12, which can save structural space, ensure structural compactness, and is beneficial to reducing the occupied space.

[0037] For example, as Figure 1As shown, when the refrigeration system 100 is operating in the refrigeration mode, the first valve port 41 is communicated with the fourth valve port 44, and the third valve port 43 is communicated with the second valve port 42. The low-pressure refrigerant enters the liquid storage device 12 from the air inlet 121, and enters the compressor body 11 through the air outlet 122 and the suction port 112 for compression. It is discharged from the compressor body 11 through the exhaust port 111. The compressed refrigerant can enter the outdoor heat exchanger 22 through the first valve port 41 and the fourth valve port 44 for condensation. After the refrigerant condenses in the outdoor heat exchanger 22, it enters the regenerator 13 from the regeneration inlet 131 through the regeneration circuit 30 to exchange heat with the refrigerant in the liquid storage device 12, and enters the indoor heat exchanger 21 through the regeneration outlet 132 through the regeneration circuit 30 for evaporation and heat absorption, so as to meet the refrigeration demand in the room. Then, it enters the liquid storage device 12 from the air inlet 121 through the second valve port 42 and the third valve port 43, thus completing the cycle. At the same time, the regenerator 13 can increase the enthalpy difference of the refrigerant in the refrigeration system 100, increase the superheat degree of the refrigerant entering the compressor body 11, and effectively improve the energy efficiency ratio of the refrigeration system 100.

[0038] For example, as Figure 2 shown, when the refrigeration system 100 is operating in the heating mode, the first valve port 41 is communicated with the second valve port 42, and the third valve port 43 is communicated with the fourth valve port 44. The low-pressure refrigerant enters the liquid storage device 12 from the air inlet 121, and enters the compressor body 11 through the air outlet 122 and the suction port 112 for compression. It is discharged from the compressor body 11 through the exhaust port 111. The compressed refrigerant can enter the indoor heat exchanger 21 through the first valve port 41 and the second valve port 42 to meet the heating demand in the room. After the refrigerant condenses in the indoor heat exchanger 21, it enters the regenerator 13 from the regeneration inlet 131 through the regeneration circuit 30 to exchange heat with the refrigerant in the liquid storage device 12, and enters the outdoor heat exchanger 22 through the regeneration outlet 132 through the regeneration circuit 30 for evaporation and heat absorption. Then, it enters the liquid storage device 12 from the air inlet 121 through the fourth valve port 44 and the third valve port 43, thus completing the cycle. At the same time, the regenerator 13 can increase the superheat degree of the refrigerant entering the compressor body 11, and effectively improve the energy efficiency ratio of the refrigeration system 100.

[0039] For example, when the refrigeration system 100 is operating in the refrigeration mode, the refrigerant can exchange heat with the regenerator 13 through the regeneration circuit 30. When the refrigeration system 100 is operating in the heating mode, the refrigerant can also exchange heat with the regenerator 13 through the regeneration circuit 30, realizing the two-way regeneration cycle of the refrigeration system 100, and meeting different usage requirements of the refrigeration system 100.

[0040] According to the refrigeration system 100 of the embodiments of the present utility model, the rotary compressor 10 includes a compressor body 11 and a liquid receiver 12. The suction port 112 of the compressor body 11 is communicated with the outlet port 122 of the liquid receiver 12. A regenerator 13 is arranged in the liquid receiver 12. One end of the indoor heat exchanger 21 and one end of the outdoor heat exchanger 22 are communicated through a heat regeneration circuit 30. The heat regeneration circuit 30 is communicated with the heat regeneration inlet 131 and the heat regeneration outlet 132 of the regenerator 13, so that the refrigerant flowing out from the indoor heat exchanger 21 and / or the outdoor heat exchanger 22 can enter the regenerator 13 through the heat regeneration circuit 30 to exchange heat with the refrigerant in the liquid receiver 12, enabling heat exchange to be carried out by utilizing the heat difference of the refrigerant, effectively improving the energy efficiency ratio of the refrigeration system 100, facilitating the optimization of the cycle of the refrigeration system 100, and ensuring the working reliability of the refrigeration system 100. At the same time, by adopting the rotary compressor 10 and integrating the regenerator 13 into the liquid receiver 12, the structure of the refrigeration system 100 is more integrated, which can save structural space and is beneficial to reducing the occupied space.

[0041] In some embodiments of the present utility model, as Figure 1 shown in Figure 2 FIG. [not provided], the heat regeneration circuit 30 includes a first flow path 31, a second flow path 32, a first branch flow path 33 and a second branch flow path 34. Both the first flow path 31 and the second flow path 32 are communicated with one end of the outdoor heat exchanger 22 and one end of the indoor heat exchanger 21, enabling the connection between the outdoor heat exchanger 22 and the indoor heat exchanger 21. One end of the first branch flow path 33 is communicated with the first flow path 31, and the other end of the first branch flow path 33 is communicated with the heat regeneration inlet 131. Through the first branch flow path 33, the connection between the first flow path 31 and the heat regeneration inlet 131 can be realized, thereby realizing the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22 and the heat regeneration inlet 131; One end of the second branch flow path 34 is communicated with the second flow path 32, and the other end of the second branch flow path 34 is communicated with the heat regeneration outlet 132. Through the second branch flow path 34, the connection between the second flow path 32 and the heat regeneration outlet 132 can be realized, thereby realizing the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22 and the heat regeneration outlet 132, facilitating the connection cycle of the heat regeneration circuit 30.

[0042] In addition, as Figure 1 shown in Figure 2 FIG. [not provided], the heat regeneration circuit 30 includes a first control valve 35 and a second control valve 36. The first control valve 35 is arranged in the first flow path 31, and the second control valve 36 is arranged in the second flow path 32.

[0043] In the refrigeration mode, as Figure 1As shown, the first control valve 35 connects the outdoor heat exchanger 22 and the regenerative inlet 131, and disconnects the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22, so that the refrigerant flowing out of the outdoor heat exchanger 22 can enter the regenerator 13 through the regenerative inlet 131 and cannot enter the indoor heat exchanger 21, meeting the required flow demand; the second control valve 36 connects the indoor heat exchanger 21 and the regenerative outlet 132, and disconnects the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22, so that the refrigerant flowing out of the regenerative outlet 132 can enter the indoor heat exchanger 21 and cannot enter the outdoor heat exchanger 22, meeting the required flow demand.

[0044] In the heating mode, as Figure 2 shown, the first control valve 35 connects the indoor heat exchanger 21 and the regenerative inlet 131, and disconnects the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22, so that the refrigerant flowing out of the indoor heat exchanger 21 can enter the regenerator 13 through the regenerative inlet 131 and cannot enter the outdoor heat exchanger 22, meeting the required flow demand; the second control valve 36 connects the outdoor heat exchanger 22 and the regenerative outlet 132, and disconnects the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22, so that the refrigerant flowing out of the regenerative outlet 132 can enter the outdoor heat exchanger 22 and cannot enter the indoor heat exchanger 21, meeting the required flow demand.

[0045] Thus, through the precise control of the first control valve 35 and the second control valve, the precise flow direction of the refrigerant in different modes can be realized, facilitating the realization of the two-way regenerative cycle of the refrigeration system 100, meeting the different usage requirements of the refrigeration system 100, and the structure of the regenerative circuit 30 is simple, facilitating design and assembly, and can reduce production costs.

[0046] According to some embodiments of the present invention, as Figure 1 shown in Figure 2 and

[0047] shown, the first control valve 35 includes a first check valve 351. The first check valve 351 is arranged on the first flow path 31, and the first check valve 351 is located between the outdoor heat exchanger 22 and the first branch flow path 33. The first check valve 351 is used to control the refrigerant to flow only from the outdoor heat exchanger 22 to the regenerative inlet 131, so that the refrigerant flowing out of the outdoor heat exchanger 22 can flow through the first flow path 31 and the first branch flow path 33 and enter the regenerator 13 through the regenerative inlet 131, and can prevent the refrigerant from entering the indoor heat exchanger 21 through the first flow path 31 and affecting the normal operation of the refrigeration system 100. Figure 1 shown in Figure 2As shown, the first control valve 35 includes a second check valve 352. The second check valve 352 is provided on the first flow path 31, and the second check valve 352 is spaced apart from the first check valve 351. The second check valve 352 is located between the indoor heat exchanger 21 and the first branch flow path 33. The first check valve 351 is used to control the refrigerant to flow only from the indoor heat exchanger 21 to the regenerative inlet 131, so that the refrigerant flowing out of the indoor heat exchanger 21 can flow through the first flow path 31 and the first branch flow path 33 and enter the regenerator 13 through the regenerative inlet 131, and it can prevent the refrigerant from entering the outdoor heat exchanger 22 through the first flow path 31 and affecting the normal operation of the refrigeration system 100.

[0048] Thus, the first check valve 351 and the second check valve 352 can respectively control the flow direction of the refrigerant in the cooling mode and the heating mode, facilitating the realization of the two-way regenerative cycle of the refrigeration system 100, ensuring that the refrigerant does not flow reversely while flowing through the regenerator 13, and the first check valve 351 and the second check valve 352 do not involve control, being simple and reliable, and capable of reducing production costs.

[0049] In some embodiments of the present utility model, such as Figure 1 and Figure 2 As shown, the second control valve 36 includes a third check valve 361. The third check valve 361 is provided on the second flow path 32, and the third check valve 361 is located between the outdoor heat exchanger 22 and the second branch flow path 34. The third check valve 361 is used to control the refrigerant to flow only from the regenerative outlet 132 to the outdoor heat exchanger 22, so that the refrigerant in the regenerator 13 flows from the regenerative outlet 132 through the second branch flow path 34 and the second flow path 32 into the outdoor heat exchanger 22, and it can prevent the refrigerant from entering the indoor heat exchanger 21 through the second flow path 32 and affecting the normal operation of the refrigeration system 100.

[0050] In addition, as Figure 1 and Figure 2 As shown, the second control valve 36 includes a fourth check valve 362. The fourth check valve 362 is provided on the second flow path 32, and the fourth check valve 362 is spaced apart from the third check valve 361. The fourth check valve 362 is located between the indoor heat exchanger 21 and the second branch flow path 34. The fourth check valve 362 is used to control the refrigerant to flow only from the regenerative outlet 132 to the indoor heat exchanger 21, so that the refrigerant in the regenerator 13 flows from the regenerative outlet 132 through the second branch flow path 34 and the second flow path 32 into the indoor heat exchanger 21, and it can prevent the refrigerant from entering the outdoor heat exchanger 22 through the second flow path 32 and affecting the normal operation of the refrigeration system 100.

[0051] Thus, the third check valve 361 and the fourth check valve 362 can respectively control the flow direction of the refrigerant in the refrigeration mode and the heating mode, facilitating the realization of the two-way regenerative cycle of the refrigeration system 100, ensuring that the refrigerant does not flow reversely while flowing through the regenerator 13, and the third check valve 361 and the fourth check valve 362 do not involve control, being simple and reliable, and capable of reducing production costs.

[0052] According to some embodiments of the present utility model, such as Figure 1 With Figure 2 As shown, an expansion valve 341 is provided on the second branch flow path 34. Through the expansion valve 341, the flow rate and pressure of the refrigerant can be precisely adjusted according to the operating state of the refrigeration system 100, which is beneficial to improving the energy efficiency ratio and stability of the refrigeration system 100. For example, the expansion valve 341 can be an electronic expansion valve.

[0053] For example, in some specific embodiments where the first control valve 35 includes a first check valve 351 and a second check valve 352, and the second control valve 36 includes a third check valve 361 and a fourth check valve 362, such as Figure 1 As shown, when the refrigeration system 100 operates in the refrigeration mode, the first valve port 41 is communicated with the fourth valve port 44, and the third valve port 43 is communicated with the second valve port 42. The refrigerant compressed by the compressor body 11 discharged from the exhaust port 111 can enter the outdoor heat exchanger 22 through the first valve port 41 and the fourth valve port 44 for condensation. The outdoor heat exchanger 22 is formed as a condenser, causing the refrigerant to condense into a medium-pressure liquid state. Then, after the refrigerant condenses in the outdoor heat exchanger 22, it flows through the first check valve 351 along the first flow path 31 to the first branch flow path 33 and enters the regenerator 13 from the regenerative inlet 131, enabling the refrigerant to exchange heat with the low-pressure refrigerant in the accumulator 12 and flow through the second branch flow path 34 from the regenerative outlet 132 and be throttled by the expansion valve 341, causing the refrigerant to become a low-temperature and low-pressure two-phase state refrigerant and flow through the second flow path 32 through the fourth check valve 362 into the indoor heat exchanger 21. The indoor heat exchanger 21 is formed as an evaporator, and the refrigerant evaporates inside the indoor heat exchanger 21 and then becomes a low-temperature and low-pressure gaseous refrigerant, realizing the refrigeration demand for the interior. Secondly, the refrigerant flowing out of the indoor heat exchanger 21 enters the accumulator 12 through the second valve port 42 and the third valve port 43 and exchanges heat with the medium-pressure liquid refrigerant in the regenerator 13 to increase the superheat. Finally, the refrigerant entering the accumulator 12 enters the compressor body 11 through the outlet port 122 and the suction port 112 for compression, thus completing the cycle.

[0054] Such as Figure 2As shown, when the refrigeration system 100 operates in the heating mode, the first valve port 41 communicates with the second valve port 42, and the third valve port 43 communicates with the fourth valve port 44. The refrigerant compressed by the compressor body 11 discharged from the exhaust port 111 can enter the indoor heat exchanger 21 through the first valve port 41 and the second valve port 42. The indoor heat exchanger 21 is formed as a condenser, causing the refrigerant to condense into medium-pressure liquid state to meet the heating demand indoors. Then, after the refrigerant condenses in the indoor heat exchanger 21, it flows through the second check valve 352 along the first flow path 31 to the first branch flow path 33 and enters the regenerator 13 from the regeneration inlet 131, enabling the refrigerant to exchange heat with the low-pressure refrigerant in the liquid storage tank 12 and flow out from the regeneration outlet 132 through the second branch flow path 34 and be throttled by the expansion valve 341, turning the refrigerant into a two-phase state of low temperature and low pressure and flowing through the second flow path 32 through the third check valve 361 into the outdoor heat exchanger 22. The outdoor heat exchanger 22 is formed as an evaporator, and the refrigerant becomes a low-temperature and low-pressure gaseous refrigerant after evaporating inside the outdoor heat exchanger 22. Secondly, the refrigerant flowing out of the indoor heat exchanger 21 enters the liquid storage tank 12 from the intake port 121 through the fourth valve port 44 and the third valve port 43 and exchanges heat with the medium-pressure liquid refrigerant in the regenerator 13 to increase the superheat. Finally, the refrigerant entering the liquid storage tank 12 enters the compressor body 11 through the outlet port 122 and the suction port 112 for compression, thus completing the cycle.

[0055] Thus, through the first check valve 351, the second check valve 352, the third check valve 361, the fourth check valve 362 and the expansion valve 341, a two-way heat regeneration cycle of the refrigeration system 100 can be achieved. Compared with the solution of "double expansion valves + double check valves" in the related art, the design of the refrigeration system 100 can be simplified, the structure is compact, and at the same time, the costs of the first check valve 351, the second check valve 352, the third check valve 361 and the fourth check valve 362 are low, that is, the costs of two check valves are much lower than the cost of one expansion valve 341, thereby reducing the production cost of the refrigeration system 100.

[0056] In some embodiments of the present invention, the regenerator 13 can be a coil type heat exchanger, which can increase the heat exchange area of the regenerator 13, effectively improve the heat exchange efficiency, and make the structure of the refrigeration system 100 more compact, capable of reducing the manufacturing cost.

[0057] According to some embodiments of the present invention, such as Figure 1 And Figure 2As shown, the refrigeration system 100 further includes a stop valve 50. Stop valves 50 are provided between the indoor heat exchanger 21 and the heat recovery circuit 30 and the second valve port 42 respectively. When the refrigeration system 100 is installed, the connection between the indoor heat exchanger 21 and the heat recovery circuit 30 and the second valve port 42 can be disconnected through the stop valve 50, thereby disconnecting the connection between the indoor heat exchanger 21 and the outdoor heat exchanger 22, making the assembly of the refrigeration system 100 more convenient. Moreover, when the refrigeration system 100 is maintained or repaired, the connection can be easily cut off through the stop valve 50, improving the maintainability of the refrigeration system 100.

[0058] In some embodiments of the present invention, the outer peripheral wall of the compressor body 11 and the outer peripheral wall of the liquid receiver 12 are fixedly connected, which can improve the overall structural strength of the refrigeration system 100, ensure the stability and reliability of the cooling system, and make the structure of the rotary compressor 10 compact, saving occupied space.

[0059] The air conditioner according to the embodiment of the present invention includes the refrigeration system 100 according to the embodiment of the present invention. Since the refrigeration system 100 according to the embodiment of the present invention has the above beneficial technical effects, the air conditioner according to the embodiment of the present invention, through the rotary compressor 10 including the compressor body 11 and the liquid receiver 12, the suction port 112 of the compressor body 11 is communicated with the outlet port 122 of the liquid receiver 12. A heat regenerator 13 is provided in the liquid receiver 12. One end of the indoor heat exchanger 21 is communicated with one end of the outdoor heat exchanger 22 through the heat recovery circuit 30. The heat recovery circuit 30 communicates the heat recovery inlet 131 and the heat recovery outlet 132 of the heat regenerator 13, so that the refrigerant flowing out of the indoor heat exchanger 21 and / or the outdoor heat exchanger 22 can enter the heat regenerator 13 through the heat recovery circuit 30 to exchange heat with the refrigerant in the liquid receiver 12, enabling heat exchange to be carried out using the heat difference of the refrigerant, effectively improving the energy efficiency ratio of the refrigeration system 100, being beneficial to optimizing the cycle of the refrigeration system 100, and ensuring the working reliability of the refrigeration system 100. At the same time, by adopting the rotary compressor 10 and integrating the heat regenerator 13 into the liquid receiver 12, the structure of the refrigeration system 100 is more integrated, saving structural space and being beneficial to reducing the occupied space.

[0060] The other components and operations of the refrigeration system 100 according to the embodiment of the present invention and the air conditioner are known to those of ordinary skill in the art and will not be described in detail here.

[0061] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0062] In the description of this specification, the descriptions with reference to the terms "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0063] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A refrigeration system, characterized in that: include: A rotary compressor, the rotary compressor comprising a compressor body and a liquid accumulator, the compressor body having an exhaust port and an air intake port, the liquid accumulator having an air inlet and an air outlet, the air intake port and the air outlet being communicated, a regenerator being arranged in the liquid accumulator, the regenerator having a heat recovery inlet and a heat recovery outlet; An indoor heat exchanger and an outdoor heat exchanger, wherein one end of the indoor heat exchanger is connected to one end of the outdoor heat exchanger via a heat recovery circuit, and the heat recovery circuit is connected to the heat recovery inlet and the heat recovery outlet; A reversing assembly, the reversing assembly having a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port being connected to the exhaust port, the second valve port being connected to the other end of the indoor heat exchanger, the third valve port being connected to the air inlet, the fourth valve port being connected to the other end of the outdoor heat exchanger, the first valve port being connected to one of the second valve port and the fourth valve port, and the third valve port being connected to the other of the second valve port and the fourth valve port.

2. The refrigeration system according to claim 1, characterized in that: The heat recovery circuit comprises: a first flow path and a second flow path, wherein the first flow path and the second flow path are both connected to one end of the outdoor heat exchanger and one end of the indoor heat exchanger; a first branch flow path, wherein one end of the first branch flow path is connected to the first flow path and the other end of the first branch flow path is connected to the heat recovery inlet; a second branch flow path, wherein one end of the second branch flow path is connected to the second flow path and the other end of the second branch flow path is connected to the heat recovery outlet; a first control valve, the first control valve being arranged in the first flow path, and in a cooling mode, the first control valve connecting the outdoor heat exchanger and the heat recovery inlet and disconnecting the indoor heat exchanger from the outdoor heat exchanger, and in a heating mode, the first control valve connecting the indoor heat exchanger and the heat recovery inlet and disconnecting the indoor heat exchanger from the outdoor heat exchanger; The second control valve is arranged in the second flow path. In cooling mode, the second control valve connects the indoor heat exchanger and the heat recovery outlet and disconnects the indoor heat exchanger and the outdoor heat exchanger. In heating mode, the second control valve connects the outdoor heat exchanger and the heat recovery outlet and disconnects the indoor heat exchanger and the outdoor heat exchanger.

3. The refrigeration system according to claim 2, characterized in that: The first control valve comprises: a first one-way valve, the first one-way valve being arranged on the first flow path and between the outdoor heat exchanger and the first branch flow path, the first one-way valve being used to control the refrigerant to flow only from the outdoor heat exchanger to the heat recovery inlet; A second one-way valve is arranged on the first flow path and is spaced apart from the first one-way valve. The second one-way valve is located between the indoor heat exchanger and the first branch flow path. The first one-way valve is used to control the refrigerant to flow only from the indoor heat exchanger to the heat recovery inlet.

4. The refrigeration system according to claim 2 or 3, characterized in that: The second control valve comprises: a third one-way valve, the third one-way valve being arranged on the second flow path and between the outdoor heat exchanger and the second branch flow path, the third one-way valve being used to control the refrigerant to flow only from the heat recovery outlet to the outdoor heat exchanger; A fourth one-way valve is arranged on the second flow path and is spaced apart from the third one-way valve. The fourth one-way valve is located between the indoor heat exchanger and the second branch flow path. The fourth one-way valve is used to control the refrigerant to flow only from the heat recovery outlet to the indoor heat exchanger.

5. The refrigeration system according to claim 2, characterized in that: An expansion valve is provided on the second branch flow path.

6. The refrigeration system according to claim 1, characterized in that: The regenerator is a coil heat exchanger.

7. The refrigeration system according to claim 1, characterized in that: Also includes: A stop valve is provided between the indoor heat exchanger and the heat recovery circuit and the second valve port.

8. The refrigeration system according to claim 1, characterized in that: The outer peripheral wall of the compressor body and the outer peripheral wall of the liquid accumulator are fixedly connected.

9. An air conditioner, characterized in that: Comprising a refrigeration system according to any one of claims 1-8.

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