Compressor assembly, refrigeration assembly and refrigeration device

Abstract

The application provides a compressor assembly, a refrigeration assembly and a refrigeration device, and relates to the technical field of refrigeration devices. The compressor assembly comprises a shell, a first cylinder, a second cylinder and an enthalpy-increasing assembly. The first cylinder is arranged in the shell and is provided with a first jet port; the second cylinder is arranged in the shell and is provided with a second jet port; the enthalpy-increasing assembly is in communication with the first jet port and the second jet port; and the pressure of the first jet port is different from the pressure of the second jet port when the compressor assembly is working. The compressor assembly provided by the application can better improve the enthalpy-increasing effect of the system and ensure the compression work of the compressor assembly, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigeration equipment, in particular, a compressor assembly, a refrigeration assembly and a refrigeration equipment. BACKGROUND

[0002] At present, in the related art, the compressor of the refrigeration equipment is provided with a shell, a cylinder body and a flash evaporator, the flash evaporator is provided with an enthalpy-increasing cavity, the two cylinder bodies of the compressor are provided with two jet ports, and the two jet ports are connected with the enthalpy-increasing cavity of the flash evaporator. However, since the flash evaporator is a single-pressure jet, when the intermediate pressure is high, the effect of system enthalpy-increasing is poor, and when the intermediate pressure is low, the compression work required by the compressor is large, thereby leading to poor balance of the compression work and the enthalpy-increasing effect of the compressor. SUMMARY

[0003] The present application aims to at least solve one of the problems in the prior art or related art.

[0004] To this end, the first aspect of the present application provides a compressor assembly.

[0005] The second aspect of the present application provides a refrigeration assembly.

[0006] The third aspect of the present application provides a refrigeration equipment.

[0007] Therefore, the first aspect of the present application provides a compressor assembly, which comprises a shell, a first cylinder, a second cylinder and an enthalpy-increasing assembly. The first cylinder is arranged in the shell and is provided with a first jet port; the second cylinder is arranged in the shell and is provided with a second jet port; the enthalpy-increasing assembly is in communication with the first jet port and the second jet port, respectively; and the pressure of the first jet port is different from that of the second jet port when the compressor assembly is working.

[0008] The compressor assembly provided by the present application communicates the two jet ports with the enthalpy-increasing assembly, respectively, and the pressure of the first jet port is different from that of the second jet port when the compressor assembly is working, so that the enthalpy-increasing effect of the system is better, and the compression work of the compressor assembly is more optimal, thereby improving the balance of the compression work and the enthalpy-increasing effect of the compressor assembly.

[0009] Specifically, the compressor assembly provided in the application comprises a shell, a first cylinder, a second cylinder and an enthalpy-increasing assembly, the first cylinder and the second cylinder inject air to the enthalpy-increasing assembly, and the enthalpy-increasing assembly is used to improve the compression work of the compressor assembly and provide enthalpy increase for the system; the first cylinder is arranged in the shell, the first cylinder is provided with a first air injection port, the second cylinder is arranged in the shell, the second cylinder is provided with a second air injection port, the two air injection ports are arranged through the shell, so that the air from the enthalpy-increasing assembly enters the first cylinder through the first air injection port and enters the second cylinder through the second air injection port. When the compressor assembly works, the pressure of the first air injection port is different from the pressure of the second air injection port, so that the pressure of the air entering the first cylinder from the enthalpy-increasing assembly is different from the pressure of the air entering the second cylinder from the enthalpy-increasing assembly. The enthalpy-increasing effect of the two cylinders in the compressor assembly and the compression work of the compressor assembly are mutually compensated, the enthalpy-increasing effect of the compressor assembly is improved, and the compression work of the compressor assembly is ensured to be more optimal, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor assembly.

[0010] Specifically, if the pressure of the air of the first air injection port is less than the pressure of the air of the second air injection port, the pressure of the air entering the first cylinder is less than the pressure of the air entering the second cylinder. The air pressure through the first cylinder is small, so that the enthalpy-increasing effect of the system is large, but the compression work of the compressor assembly required is large. The air pressure through the second cylinder is large, so that the enthalpy-increasing effect of the system is reduced, but the compression work of the compressor assembly required is small. Because the air pressures of the first cylinder and the second cylinder are different, the enthalpy-increasing effect of the two cylinders and the compression work of the compressor assembly are mutually compensated, the enthalpy-increasing effect of the compressor assembly is improved, and the compression work of the compressor assembly is ensured to be more optimal, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor assembly.

[0011] In addition, the compressor assembly provided in the above technical solution of the application can also have the following additional technical features:

[0012] In some technical solutions of the application, the enthalpy-increasing assembly comprises a first flash evaporator and a second flash evaporator. The first flash evaporator is provided with a first enthalpy-increasing cavity, and the first enthalpy-increasing cavity is in communication with the first air injection port. The second flash evaporator is provided with a second enthalpy-increasing cavity, and the second enthalpy-increasing cavity is in communication with the second air injection port.

[0013] In the technical scheme, the enthalpy-increasing assembly comprises a first flash evaporator and a second flash evaporator. The first flash evaporator is provided with a first enthalpy-increasing cavity, and the second flash evaporator is provided with a second enthalpy-increasing cavity, so that the enthalpy-increasing assembly of the compressor assembly is provided with two enthalpy-increasing cavities. The first enthalpy-increasing cavity is communicated with the first jet port, and the second enthalpy-increasing cavity is communicated with the second jet port. Since the pressure in the first enthalpy-increasing cavity is different from the pressure in the second enthalpy-increasing cavity, the pressure of the first jet port is different from the pressure of the second jet port, and then the gas pressure in the two cylinders is different. Through the different gas pressures of the first cylinder and the second cylinder, the enthalpy-increasing effect and the compression work of the compressor assembly are mutually compensated, the enthalpy-increasing effect of the compressor assembly is improved, and at the same time, the compression work of the compressor assembly is more optimal, and then the balance of the compression work and the enthalpy-increasing effect of the compressor assembly is improved.

[0014] Specifically, the enthalpy-increasing assembly comprises a first flash evaporator and a second flash evaporator. After the high-pressure refrigerant liquid from the condenser enters the flash evaporator, the refrigerant will partially evaporate due to the sudden reduction of pressure, forming a gas-liquid mixture. In the flash evaporator, the liquid refrigerant and the gaseous refrigerant are naturally separated due to the difference in density, and the liquid refrigerant is concentrated at the bottom of the flash evaporator, and the gaseous refrigerant is concentrated in the upper space of the flash evaporator. Further, the separated gaseous refrigerant is connected to the jet port of the compressor assembly through a specific pipeline and enters the compressor assembly to participate in the compression process. This part of additional gas refrigerant can increase the exhaust volume of the compressor assembly and improve the system refrigeration capacity. At the same time, since the gas supplement process reduces the compression ratio of the compressor assembly and reduces the power consumption of the compressor, the system enthalpy-increasing effect is better, and the compression work of the compressor assembly is more optimal.

[0015] In some embodiments of the present application, the compressor assembly further comprises a liquid accumulator, a first support and a second support. The liquid accumulator is arranged in the shell, the first support is connected with the shell or the liquid accumulator, the first flash evaporator is fixed to the first support, the second support is connected with the shell, the first flash evaporator or the liquid accumulator, and the second flash evaporator is fixed to the second support. In this embodiment, the compressor assembly further comprises a liquid accumulator, a first support and a second support. The liquid accumulator is used to filter the low-temperature and low-pressure gaseous refrigerant, so that the liquid substance in the low-temperature and low-pressure gaseous refrigerant is filtered, and the pure low-temperature and low-pressure gaseous refrigerant is delivered to the compressor assembly for compression, thereby preventing the liquid substance from entering the compressor assembly and causing damage to the equipment. The compressor assembly further comprises a first support and a second support, the first support is connected with the shell or the liquid accumulator, and the second support is connected with the shell, the first flash evaporator or the liquid accumulator. The first support is used to fix the first flash evaporator, and the second support is used to fix the second flash evaporator, so that the two flash evaporators are firmly installed. When the compressor assembly operates violently, the two flash evaporators shake violently, and the first support and the second support are used to connect the two flash evaporators respectively, thereby reducing the risk of falling off of the two flash evaporators, and also reducing the risk of collision between the two flash evaporators or with other components, thereby ensuring the stability of the overall structure of the compressor assembly, and also reducing the noise during operation of the compressor assembly.

[0016] Specifically, the first support and the second support can be an integrated structure or a split structure, which is designed according to the structure of the compressor assembly. In some embodiments of the present application, the compressor assembly further comprises a first throttling component. The first end of the first throttling component is in communication with the first enthalpy-increasing cavity, and the second end of the first throttling component is in communication with the second enthalpy-increasing cavity.

[0017] In this embodiment, the first throttling component is used to connect the first enthalpy-increasing cavity and the second enthalpy-increasing cavity, the pressure of the first enthalpy-increasing cavity and the second enthalpy-increasing cavity is separated by the throttling component, the separated gaseous refrigerant is connected to the jet port of the compressor assembly through the pipeline, the gas cylinder of the compressor assembly is supplemented, the gas pressure of the first enthalpy-increasing cavity entering the first cylinder is different from the gas pressure of the second enthalpy-increasing cavity entering the second cylinder, the enthalpy-increasing effect and the compression work of the two cylinders are mutually compensated by the different gas pressures of the first cylinder and the second cylinder, thereby improving the enthalpy-increasing effect and ensuring the compression work to be more optimal, and improving the balance between the compression work and the enthalpy-increasing effect of the compressor.

[0018] Specifically, the high-pressure refrigerant liquid from the condenser enters the second enthalpy-increasing cavity, and due to the sudden pressure drop, the refrigerant partially evaporates to form a gas-liquid mixture. In the second enthalpy-increasing cavity, the liquid refrigerant and the gaseous refrigerant naturally separate due to the difference in density, with the liquid refrigerant accumulating at the bottom of the second enthalpy-increasing cavity and the gaseous refrigerant accumulating in the upper space of the second enthalpy-increasing cavity. Further, the liquid refrigerant at the bottom of the second enthalpy-increasing cavity is further adjusted by the first throttling component, causing the refrigerant entering the first enthalpy-increasing cavity to partially evaporate and form a gas-liquid mixture again. In the first enthalpy-increasing cavity, the liquid refrigerant and the gaseous refrigerant naturally separate due to the difference in density, with the liquid refrigerant accumulating at the bottom of the first enthalpy-increasing cavity and the gaseous refrigerant accumulating in the upper space of the first enthalpy-increasing cavity. The gaseous refrigerant from the two enthalpy-increasing cavities is connected to the injection port of the compressor assembly through a specific pipeline and enters the compressor assembly to participate in the compression process. This additional gaseous refrigerant can increase the exhaust volume of the compressor assembly and improve the system refrigeration capacity. At the same time, the gas pressure of the first cylinder and the second cylinder is adjusted, so that the enthalpy-increasing effect of the two cylinders and the compression power of the compressor are mutually compensated, thereby improving the enthalpy-increasing effect of the entire system while reducing the compression power.

[0019] In some technical solutions of the present application, the enthalpy-increasing assembly optionally includes a third flash evaporator and a partition. The third flash evaporator is provided with a first cavity, and the partition is arranged in the first cavity, separating the first cavity into a first enthalpy-increasing cavity and a second enthalpy-increasing cavity. The first enthalpy-increasing cavity is in communication with the first injection port, and the second enthalpy-increasing cavity is in communication with the second injection port.

[0020] In this technical solution, the enthalpy-increasing assembly is set as a third flash evaporator, which is divided into two enthalpy-increasing cavities by the partition, so that the pressures of the two enthalpy-increasing cavities are different. The first enthalpy-increasing cavity is in communication with the first injection port, and the second enthalpy-increasing cavity is in communication with the second injection port, so that the gas pressures entering the first cylinder and the second cylinder are different. The enthalpy-increasing effect of the two cylinders and the compression power of the compressor assembly are mutually compensated, improving the enthalpy-increasing effect of the compressor assembly while ensuring the compression power of the compressor assembly is more optimal, thereby improving the balance between the compression power and the enthalpy-increasing effect of the compressor assembly.

[0021] Specifically, the partition is arranged in the first cavity, and the partition is completely attached to the inside of the first cavity around, separating the first cavity into a first enthalpy-increasing cavity and a second enthalpy-increasing cavity, thereby generating a pressure difference in the first enthalpy-increasing cavity and the second enthalpy-increasing cavity to provide different gas pressures for the cylinders of the compressor assembly.

[0022] In some embodiments of the present application, the partition plate is provided with a throttling hole, and the throttling hole is located on the side of the partition plate close to the bottom wall of the first cavity. The first enthalpy-increasing cavity is in communication with the second enthalpy-increasing cavity through the throttling hole.

[0023] In this technical solution, the partition plate is provided with a throttling hole close to the bottom wall of the first cavity. The first enthalpy-increasing cavity is in communication with the second enthalpy-increasing cavity through the throttling hole. The pressure difference between the two enthalpy-increasing cavities is further increased through the throttling hole, so that the pressures of the two enthalpy-increasing cavities are different. The separated gaseous refrigerant is connected to the injection port of the compressor assembly through a pipeline to supplement the air to the compressor cylinder. The enthalpy-increasing effects obtained by the first cylinder and the second cylinder are different, and the compression power of the compressor is mutually compensated, so that the entire system not only improves the enthalpy-increasing effect, but also ensures the compression power.

[0024] Specifically, the high-pressure refrigerant liquid from the condenser enters the second enthalpy-increasing cavity of the third flash evaporator, and due to the sudden decrease in pressure, the refrigerant will partially evaporate to form a gas-liquid mixture. In the second enthalpy-increasing cavity, the liquid refrigerant and the gaseous refrigerant are naturally separated due to the difference in density, and the liquid refrigerant is concentrated at the bottom of the second enthalpy-increasing cavity, and the gaseous refrigerant is concentrated in the upper space of the second enthalpy-increasing cavity. Further, the throttling hole of the partition plate further adjusts the liquid refrigerant at the bottom of the second enthalpy-increasing cavity, so that the refrigerant entering the first enthalpy-increasing cavity partially evaporates to form a gas-liquid mixture again. In the first enthalpy-increasing cavity, the liquid refrigerant and the gaseous refrigerant are naturally separated due to the difference in density, and the liquid refrigerant is concentrated at the bottom of the first enthalpy-increasing cavity, and the gaseous refrigerant is concentrated in the upper space of the first enthalpy-increasing cavity. The gaseous refrigerant of the two enthalpy-increasing cavities is connected to the injection port of the compressor assembly through a specific pipeline to enter the compressor assembly to participate in the compression process. This part of the additional gaseous refrigerant can increase the exhaust volume of the compressor assembly and improve the system refrigeration capacity. At the same time, the enthalpy-increasing effects obtained by the first cylinder and the second cylinder are different, and the compression power of the compressor is mutually compensated, so that the entire system not only improves the enthalpy-increasing effect, but also ensures the compression power is more optimal. At the same time, the liquid refrigerant in the two enthalpy-increasing cavities is connected to the evaporator through a pipeline to provide lower liquid refrigerant for the evaporator, so that the evaporator has better heat exchange efficiency and can better absorb the heat of the surrounding environment, further improving the performance of the system.

[0025] In some embodiments of the present application, the compressor assembly further includes a liquid accumulator and a third bracket. The liquid accumulator is arranged in the housing; the third bracket is connected with the housing or the liquid accumulator; and the third flash evaporator is fixed to the third bracket.

[0026] In the technical solution, the compressor assembly further comprises a liquid accumulator and a third support. The liquid accumulator is connected with the shell. The third support is fixed with the shell or the liquid accumulator, and is used for fixing the third flash evaporator, so that the third flash evaporator is firmly installed. Even when the compressor assembly is operated intensively, the third flash evaporator is fixed through the third support, so that shaking of the third flash evaporator is reduced, and noise generated during operation of the compressor assembly is reduced.

[0027] In some technical solutions of the present application, the compressor assembly further comprises a first pipeline and a second pipeline. The first end of the first pipeline is in communication with the first jet port, and the second end of the first pipeline extends into the first enthalpy-increasing cavity and extends towards the top wall of the first enthalpy-increasing cavity. The first end of the second pipeline is in communication with the second jet port, and the second end of the second pipeline extends into the second enthalpy-increasing cavity and extends towards the top wall of the second enthalpy-increasing cavity.

[0028] In the technical solution, the compressor assembly is provided with the first pipeline and the second pipeline. The first pipeline is used for connecting the first jet port and the first enthalpy-increasing cavity, and the first pipeline extends into the first enthalpy-increasing cavity. The second pipeline is used for connecting the second jet port and the second enthalpy-increasing cavity, and the second pipeline extends into the second enthalpy-increasing cavity. The two enthalpy-increasing cavities are connected with the two cylinders through the first pipeline and the second pipeline.

[0029] Specifically, the gaseous refrigerant in the upper space of the first enthalpy-increasing cavity is transported into the first cylinder of the compressor assembly through the first pipeline by the first jet port and the first enthalpy-increasing cavity. The gaseous refrigerant in the upper space of the second enthalpy-increasing cavity is transported into the second cylinder of the compressor assembly through the second pipeline by the second jet port and the second enthalpy-increasing cavity. The pressures of the two enthalpy-increasing cavities are different, so that the pressures of the gaseous refrigerants transported into the first cylinder and the second cylinder are different. The enthalpy-increasing effect of the system is better, and the compression work of the compressor assembly is more optimal.

[0030] Specifically, the second end of the first pipeline extends to the top wall of the first enthalpy-increasing cavity, and the second end of the second pipeline extends to the top wall of the second enthalpy-increasing cavity. The gaseous refrigerant in the upper space of the enthalpy-increasing cavity enters the cylinder, and liquid refrigerant is prevented from entering the cylinder through the pipeline, so that the compressor assembly is prevented from being damaged.

[0031] The second aspect of the present application provides a refrigeration assembly, which comprises the compressor assembly provided in any of the technical solutions described above. Therefore, the refrigeration assembly also comprises all the beneficial effects of the compressor assembly provided in any of the technical solutions described above. To avoid repetition, details are not described herein.

[0032] In some embodiments of the present application, the compressor assembly is provided with an exhaust port and a return port, and the refrigeration assembly further comprises a four-way valve, a first heat exchanger, a second throttling component, a third throttling component, and a second heat exchanger. The first end of the four-way valve is in communication with the exhaust port, and the second end of the four-way valve is in communication with the return port. The first end of the first heat exchanger is in communication with the third end of the four-way valve. The second end of the first heat exchanger is in communication with the enthalpy-increasing assembly through the second throttling component. The third throttling component is in communication with the enthalpy-increasing assembly. The first end of the second heat exchanger is in communication with the third throttling component, and the second end of the second heat exchanger is in communication with the fourth end of the four-way valve.

[0033] In this technical solution, the compressor assembly is provided with an exhaust port and a return port. The exhaust port of the compressor assembly is where the high-temperature and high-pressure refrigerant gas after compression is discharged. For example, in an air conditioning system, the refrigerant is compressed in the compressor, and when it is discharged from the exhaust port, the pressure is usually high, and the temperature is also high. The return port of the compressor assembly is used to allow the low-temperature and low-pressure refrigerant gas after evaporation in the evaporator to return to the compressor inlet, which ensures that the compressor assembly can continuously suck in refrigerant gas for the next round of compression cycle.

[0034] Specifically, the refrigeration assembly mentioned in the present application further comprises a four-way valve, a first heat exchanger, a second throttling component, a third throttling component, and a second heat exchanger. The first end of the four-way valve is in communication with the exhaust port for conveying high-temperature and high-pressure gaseous refrigerant of the compression assembly. The second end of the four-way valve is in communication with the return port for conveying low-temperature and low-pressure gaseous refrigerant back into the compression assembly. The first end of the first heat exchanger is in communication with the third end of the four-way valve for conveying low-temperature and low-pressure gaseous refrigerant from the first heat exchanger into the compression assembly. The second end of the first heat exchanger is in communication with the first enthalpy-increasing cavity through the second throttling component for conveying low-temperature and low-pressure liquid refrigerant in the first enthalpy-increasing cavity into the first heat exchanger. The third throttling component is in communication with the second enthalpy-increasing cavity for conveying liquid refrigerant from the third throttling component into the second enthalpy-increasing cavity. The first end of the second heat exchanger is in communication with the third throttling component for conveying high-temperature and high-pressure liquid refrigerant from the second heat exchanger to the third throttling component. The second end of the second heat exchanger is in communication with the fourth end of the four-way valve for conveying high-temperature and high-pressure gaseous refrigerant in the compression assembly into the second heat exchanger for energy replacement.

[0035] The compressor assembly is provided with an exhaust port and a back gas port, the refrigeration assembly further comprises a four-way valve, a first heat exchanger, a second throttling component, a third throttling component and a second heat exchanger, forming a complete refrigeration system. The high-temperature and high-pressure gaseous refrigerant output by the compressor assembly enters the second heat exchanger, and the second heat exchanger can displace the output of high-temperature and high-pressure liquid refrigerant. The high-temperature and high-pressure liquid refrigerant is delivered to the second enthalpy-increasing cavity through the third throttling component. When the refrigerant liquid enters the second enthalpy-increasing cavity, due to the sudden decrease in pressure, the refrigerant will partially evaporate to form a gas-liquid mixture. In the second enthalpy-increasing cavity, the liquid refrigerant and the gaseous refrigerant are naturally separated due to the difference in density. The liquid refrigerant is concentrated at the bottom of the second enthalpy-increasing cavity, and the gaseous refrigerant is concentrated in the upper space of the second enthalpy-increasing cavity. Further, the liquid refrigerant at the bottom of the second enthalpy-increasing cavity is further adjusted through the throttling hole of the partition plate, so that the refrigerant entering the first enthalpy-increasing cavity partially evaporates to form a gas-liquid mixture again. In the first enthalpy-increasing cavity, the liquid refrigerant and the gaseous refrigerant are naturally separated due to the difference in density. The liquid refrigerant is concentrated at the bottom of the first enthalpy-increasing cavity, and the gaseous refrigerant is concentrated in the upper space of the first enthalpy-increasing cavity. The gaseous refrigerant in the two enthalpy-increasing cavities is connected to the two injection ports of the compressor assembly through two pipelines to enter the compressor assembly to participate in the compression process. This part of the additional gaseous refrigerant can increase the exhaust capacity of the compressor assembly and improve the system refrigeration capacity. At the same time, due to the reduction of the compression ratio of the compressor assembly in the gas supplementing process, the power consumption of the compressor is reduced, thereby making the system enthalpy-increasing effect better and the compression work of the compressor assembly more optimal. At the same time, the liquid refrigerant in the two enthalpy-increasing cavities is connected to the evaporator through a pipeline to provide lower liquid refrigerant for the evaporator, so that the evaporator has better heat exchange efficiency and can better absorb the heat of the surrounding environment, thereby further improving the performance of the system. The low-temperature and low-pressure liquid refrigerant output by the first enthalpy-increasing cavity enters the first heat exchanger, and the first heat exchanger provides cold air output through energy conversion. The first heat exchanger delivers low-temperature and low-pressure gaseous refrigerant to the compressor assembly through a pipeline. The gaseous refrigerant is further compressed after entering the compressor assembly, forming a complete refrigeration cycle system.

[0036] Specifically, the compressor assembly of the present application further comprises a liquid accumulator for filtering the low-temperature and low-pressure gaseous refrigerant output by the first heat exchanger, so that the liquid substance in the low-temperature and low-pressure gaseous refrigerant is filtered, and then the pure low-temperature and low-pressure gaseous refrigerant is delivered to the compressor assembly for compression, thereby preventing the liquid substance from entering the compressor assembly and causing damage to the equipment.

[0037] The third aspect of the present application provides a refrigeration equipment, which comprises the compressor assembly provided in any of the above technical solutions. Therefore, the refrigeration equipment also comprises all the beneficial effects of the compressor assembly provided in any of the above technical solutions, which will not be repeated here to avoid repetition.

[0038] Additional aspects and advantages of the present application will be made apparent from the following description with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0039] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood by considering the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0040] Figure 1 Schematic diagram of a refrigeration device according to one embodiment of the present application;

[0041] Figure 2 Schematic diagram of one of the compressor assemblies according to one embodiment of the present application;

[0042] Figure 3 Schematic diagram of the other of the compressor assemblies according to one embodiment of the present application;

[0043] Figure 4 Schematic diagram of one of the refrigeration device operation data provided by the comparative example according to the present application;

[0044] Figure 5 Schematic diagram of the other of the refrigeration device operation data provided by the comparative example according to the present application;

[0045] Figure 6 Schematic diagram of the refrigeration device operation data according to one embodiment of the present application.

[0046] REFERENCE NUMERALS:

[0047] 100 compressor assembly, 102 housing, 104 first cylinder, 106 second cylinder, 108 first jet port, 110 second jet port, 112 first bracket, 114 second bracket, 116 third bracket, 120 enthalpy increasing assembly, 122 first enthalpy increasing cavity, 124 second enthalpy increasing cavity, 126 first flash evaporator, 128 second flash evaporator, 130 third flash evaporator, 132 first cavity, 134 partition, 136 throttling hole, 140 first throttling component, 142 first pipeline, 144 second pipeline, 150 refrigeration assembly, 152 exhaust port, 154 gas return port, 156 four-way valve, 158 first heat exchanger, 160 second throttling component, 162 third throttling component, 164 second heat exchanger, 180 liquid accumulator. DETAILED DESCRIPTION

[0048] In order to enable a clearer understanding of the above-mentioned objects, features and advantages of the present application, the present application will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0050] The following reference Figures 1 to 5 This application describes a compressor assembly 100, a refrigeration assembly 150, and a refrigeration device according to some embodiments of the present application.

[0051] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, a compressor assembly 100 is provided, including a housing 102, a first cylinder 104, a second cylinder 106, and an enthalpy-enhancing assembly 120. The first cylinder 104 is disposed within the housing 102 and has a first jet port 108. The second cylinder 106 is disposed within the housing 102 and has a second jet port 110. The enthalpy-enhancing assembly 120 is connected to both the first jet port 108 and the second jet port 110. When the compressor assembly 100 is operating, the pressure at the first jet port 108 is different from the pressure at the second jet port 110.

[0052] The compressor assembly 100 provided in this application connects two jet ports to the enthalpy-increasing assembly 120 respectively. When the compressor assembly 100 is working, the pressure of the first jet port 108 is different from that of the second jet port 110, which makes the enthalpy-increasing effect of the system better and ensures that the compression work of the compressor assembly 100 is better, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor assembly 100.

[0053] Specifically, the compressor assembly 100 provided in this application includes a housing 102, a first cylinder 104, a second cylinder 106, and an enthalpy-enhancing assembly 120. Gas is injected into the enthalpy-enhancing assembly 120 through the first cylinder 104 and the second cylinder 106. The enthalpy-enhancing assembly 120 is used to improve the compression work of the compressor assembly 100 and provide enthalpy enhancement for the system. The first cylinder 104 is disposed inside the housing 102 and is provided with a first injection port 108. The second cylinder 106 is disposed inside the housing 102 and is provided with a second injection port 110. By providing two injection ports through the housing 102, the gas from the enthalpy-enhancing assembly 120 enters the first cylinder 104 through the first injection port 108 and enters the second cylinder 106 through the second injection port 110. When the compressor assembly 100 is working, the pressure of the first jet port 108 is different from that of the second jet port 110, which makes the gas pressure entering the first cylinder 104 from the enthalpy-enhancing assembly 120 different from that entering the second cylinder 106 from the enthalpy-enhancing assembly 120. The enthalpy-enhancing effect of the two cylinders in the compressor assembly 100 and the compression work of the compressor assembly 100 compensate for each other, thereby improving the enthalpy-enhancing effect of the compressor assembly 100 while ensuring that the compression work of the compressor assembly 100 is better, thus improving the balance between the compression work and the enthalpy-enhancing effect of the compressor assembly 100.

[0054] Specifically, if the gas pressure in the first enthalpy-increasing chamber 122 is less than the gas pressure in the second enthalpy-increasing chamber 124, then the gas pressure entering the first cylinder 104 is less than the gas pressure entering the second cylinder 106. The lower gas pressure in the first cylinder 104 results in a greater enthalpy-increasing effect for the system, but requires a larger compression work from the compressor. Conversely, the higher gas pressure in the second cylinder 106 reduces the enthalpy-increasing effect of the system, but requires a smaller compression work from the compressor assembly 100. Because the gas pressures in the first cylinder 104 and the second cylinder 106 are different, the enthalpy-increasing effect of the two cylinders and the compression work of the compressor assembly 100 compensate for each other, improving the enthalpy-increasing effect of the compressor assembly 100 while ensuring a better compression work, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor assembly 100.

[0055] In addition, the compressor assembly 100 in the above-mentioned technical solution provided in this application may also have the following additional technical features:

[0056] In some embodiments of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, optionally, the enthalpy-enhancing assembly 120 includes: a first flash evaporator 126 and a second flash evaporator 128. The first flash evaporator 126 is provided with a first enthalpy-enhancing chamber 122, which is connected to a first jet port 108; the second flash evaporator 128 is provided with a second enthalpy-enhancing chamber 124, which is connected to a second jet port 110.

[0057] In this embodiment, the enthalpy-increasing assembly 120 includes a first flash evaporator 126 and a second flash evaporator 128. The first flash evaporator 126 is provided with a first enthalpy-increasing chamber 122, and the second flash evaporator 128 is provided with a second enthalpy-increasing chamber 124, so that the enthalpy-increasing assembly of the compressor assembly 100 is configured with two enthalpy-increasing chambers. The first enthalpy-increasing chamber 122 is connected to the first jet port 108, and the second enthalpy-increasing chamber 124 is connected to the second jet port 110. Since the pressure in the first enthalpy-increasing chamber 122 is different from the pressure in the second enthalpy-increasing chamber 124, the pressure in the first jet port 108 is different from the pressure in the second jet port 110. Consequently, the gas pressure entering the two cylinders is different. Through the difference in gas pressure between the first cylinder 104 and the second cylinder 106, the enthalpy-increasing effect and compression work of the compressor assembly 100 are mutually compensated. This improves the enthalpy-increasing effect of the compressor assembly 100 while ensuring that the compression work of the compressor assembly 100 is better, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor assembly 100.

[0058] Specifically, the enthalpy-increasing assembly 120 includes a first flash evaporator 126 and a second flash evaporator 128. After the high-pressure liquid refrigerant from the condenser enters the flash evaporator, due to the sudden pressure drop, the refrigerant partially evaporates, forming a gas-liquid mixture. Inside the flash evaporator, the liquid and gaseous refrigerants naturally separate due to their different densities; the liquid refrigerant accumulates at the bottom of the flash evaporator, and the gaseous refrigerant accumulates in the upper space. Further, the separated gaseous refrigerant is connected to the nozzle of the compressor assembly 100 through a specific pipeline and enters the compressor assembly 100 to participate in the compression process. This additional gaseous refrigerant increases the discharge capacity of the compressor assembly 100, improving the system's cooling capacity. Simultaneously, because the gas replenishment process reduces the compression ratio of the compressor assembly 100, it reduces the compressor's power consumption, thereby improving the system's enthalpy-increasing effect and optimizing the compression work of the compressor assembly 100. In some embodiments of this application, such as... Figure 1 , Figure 2 and Figure 3 As shown, optionally, the compressor assembly 100 further includes: a liquid receiver 180, a first bracket 112, and a second bracket 114. The liquid receiver 180 is disposed on the housing 102; the first bracket 112 is connected to the housing 102 or to the liquid receiver 180; a first flash evaporator 126 is fixed to the first bracket 112; the second bracket 114 is connected to the housing 102, or to the first flash evaporator 126, or to the liquid receiver 180; and a second flash evaporator 128 is fixed to the second bracket 114.

[0059] In this embodiment, the compressor assembly 100 further includes a liquid receiver 180, a first bracket 112, and a second bracket 114. The liquid receiver 180 is used to filter the low-temperature, low-pressure gaseous refrigerant, filtering out liquid substances from the refrigerant before delivering the pure low-temperature, low-pressure gaseous refrigerant to the compressor assembly 100 for compression, preventing liquid substances from entering the compressor assembly 100 and causing equipment damage. The compressor assembly 100 is also provided with a first bracket 112 and a second bracket 114. The first bracket 112 is connected to the housing or the liquid receiver 180, and the second bracket 114 is connected to the housing, the first flash evaporator 126, or the liquid receiver 180. The first bracket 112 is used to fix the first flash evaporator 126, and the second bracket 114 is used to fix the second flash evaporator 128, ensuring that the two flash evaporators are securely installed. When the compressor assembly 100 operates violently, the two flash evaporators shake violently. The two flash evaporators are connected by the first bracket 112 and the second bracket 114 respectively, which reduces the risk of the two flash evaporators falling off. At the same time, it also reduces the risk of the two flash evaporators colliding with each other or with other components, thereby ensuring the stability of the overall structure of the compressor assembly 100 and reducing the noise of the compressor assembly 100 during operation.

[0060] Specifically, the first bracket 112 and the second bracket 114 can be an integrated structure or a separate structure, depending on the specific design of the compressor assembly 100.

[0061] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, optionally, the compressor assembly 100 further includes a first throttling component 140. A first end of the first throttling component 140 is connected to a first enthalpy-increasing chamber 122, and a second end of the first throttling component 140 is connected to a second enthalpy-increasing chamber 124.

[0062] In this embodiment, a first throttling component 140 is used to connect the first enthalpy-increasing chamber 122 and the second enthalpy-increasing chamber 124. The pressures of the first enthalpy-increasing chamber 122 and the second enthalpy-increasing chamber 124 are different through the throttling component. The separated gaseous refrigerant is connected to the nozzle of the compressor assembly 100 through a pipeline to replenish the compressor cylinder. The gas pressure entering the first cylinder 104 from the first enthalpy-increasing chamber 122 is different from the gas pressure entering the second cylinder 106 from the second enthalpy-increasing chamber 124. Through the difference in gas pressure between the first cylinder 104 and the second cylinder 106, the enthalpy-increasing effect obtained by the two cylinders and the compression work of the compressor complement each other. Thus, the entire system not only improves the enthalpy-increasing effect, but also ensures better compression work, thereby improving the balance between the compression work and the enthalpy-increasing effect of the compressor.

[0063] Specifically, after the high-pressure liquid refrigerant from the condenser enters the second enthalpy-increasing chamber 124, the refrigerant partially evaporates due to the sudden pressure drop, forming a gas-liquid mixture. Within the second enthalpy-increasing chamber 124, the liquid and gaseous refrigerants naturally separate due to their density difference; the liquid refrigerant accumulates at the bottom of the second enthalpy-increasing chamber 124, and the gaseous refrigerant accumulates in the upper space of the second enthalpy-increasing chamber 124. Further, the liquid refrigerant at the bottom of the second enthalpy-increasing chamber 124 is further regulated by the first throttling component 140, causing the refrigerant entering the first enthalpy-increasing chamber 122 to partially evaporate, again forming a gas-liquid mixture. Within the first enthalpy-increasing chamber 122, the liquid and gaseous refrigerants naturally separate due to their density difference; the liquid refrigerant accumulates at the bottom of the first enthalpy-increasing chamber 122, and the gaseous refrigerant accumulates in the upper space of the first enthalpy-increasing chamber 122. The gaseous refrigerant in the two enthalpy-increasing chambers is connected to the nozzle of the compressor assembly 100 via specific pipelines, entering the compressor assembly 100 to participate in the compression process. This additional gaseous refrigerant increases the discharge volume of the compressor assembly 100, improving the system's cooling capacity. Simultaneously, by regulating the gas pressure of the first cylinder 104 and the second cylinder 106, the enthalpy-increasing effect of the two cylinders and the compression work of the compressor are mutually compensated, thus improving both the enthalpy-increasing effect and reducing the compression power of the entire system. Meanwhile, the liquid refrigerant in the two enthalpy-increasing chambers is connected to the evaporator via pipelines, providing the evaporator with a lower level of liquid refrigerant, resulting in better heat exchange efficiency and better absorption of heat from the surrounding environment, further improving the system's performance.

[0064] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, optionally, the enthalpy-enhancing assembly 120 includes a third flash evaporator 130 and a partition 134. The third flash evaporator 130 is provided with a first cavity 132; the partition 134 is disposed within the first cavity 132, dividing the first cavity 132 into a first enthalpy-enhancing cavity 122 and a second enthalpy-enhancing cavity 124. The first enthalpy-enhancing cavity 122 is connected to a first jet port 108, and the second enthalpy-enhancing cavity 124 is connected to a second jet port 110.

[0065] In this embodiment, the enthalpy-enhancing component 120 is configured as a third flash evaporator 130, which is divided into two enthalpy-enhancing chambers by a partition 134, resulting in different pressures in the two chambers. The first enthalpy-enhancing chamber 122 is connected to the first jet port 108, and the second enthalpy-enhancing chamber 124 is connected to the second jet port 110, causing different gas pressures entering the first cylinder 104 and the second cylinder 106. The enthalpy-enhancing effect of the two cylinders and the compression work of the compressor assembly 100 complement each other, improving the enthalpy-enhancing effect of the compressor assembly 100 while ensuring optimal compression work, thereby improving the balance between the compression work and enthalpy-enhancing effect of the compressor assembly 100.

[0066] Specifically, the partition 134 is disposed in the first cavity 132, and the partition 134 is completely fitted with the inside of the first cavity 132, so that the first cavity 132 is divided into a first enthalpy-increasing cavity 122 and a second enthalpy-increasing cavity 124, thereby creating a pressure difference in the first enthalpy-increasing cavity 122 and the second enthalpy-increasing cavity 124, providing different gas pressures to the cylinder of the compressor assembly 100.

[0067] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, optionally, the partition 134 is provided with a throttling orifice 136, which is located on the side of the partition 134 near the bottom wall of the first cavity 132. The first enthalpy-increasing cavity 122 is connected to the second enthalpy-increasing cavity 124 through the throttling orifice 136.

[0068] In this embodiment, a throttling orifice 136 is provided on the partition 134 near the bottom wall of the first cavity 132. The first enthalpy-increasing cavity 122 and the second enthalpy-increasing cavity 124 are connected through the throttling orifice 136. The pressure difference between the two enthalpy-increasing cavities is further increased through the throttling orifice 136, so that the pressures of the two enthalpy-increasing cavities are different. The separated gaseous refrigerant is connected to the jet port of the compressor assembly 100 through a pipeline to replenish the compressor cylinder. By the difference in gas between the first cylinder 104 and the second cylinder 106, the enthalpy-increasing effect obtained by the two cylinders and the compression work of the compressor complement each other, so that the entire system can improve the enthalpy-increasing effect and ensure the compression power.

[0069] Specifically, after the high-pressure liquid refrigerant from the condenser enters the second enthalpy-increasing chamber 124 of the third flash evaporator 130, the refrigerant undergoes partial evaporation due to the sudden pressure drop, forming a gas-liquid mixture. Within the second enthalpy-increasing chamber 124, the liquid and gaseous refrigerants naturally separate due to their density difference; the liquid refrigerant accumulates at the bottom of the chamber, while the gaseous refrigerant accumulates in the upper space. Further, the liquid refrigerant at the bottom of the second enthalpy-increasing chamber 124 is further regulated through the throttling orifice 136 of the partition 134, causing partial evaporation of the refrigerant entering the first enthalpy-increasing chamber 122, again forming a gas-liquid mixture. Within the first enthalpy-increasing chamber 122, the liquid and gaseous refrigerants naturally separate due to their density difference; the liquid refrigerant accumulates at the bottom of the chamber, while the gaseous refrigerant accumulates in the upper space. The gaseous refrigerant in the two enthalpy-increasing chambers is connected to the nozzle of the compressor assembly 100 through specific pipelines, entering the compressor assembly 100 to participate in the compression process. This additional gaseous refrigerant increases the discharge volume of the compressor assembly 100, improving the system's cooling capacity. Simultaneously, the difference in gas pressure between the first cylinder 104 and the second cylinder enthalpy-increasing assembly 120 allows the enthalpy-increasing effect of the two cylinders and the compression work of the compressor to compensate for each other, thus improving both the enthalpy-increasing effect and the compression power of the entire system. Meanwhile, the liquid refrigerant in the two enthalpy-increasing chambers is connected to the evaporator through pipelines, providing the evaporator with a lower level of liquid refrigerant, resulting in better heat exchange efficiency and better absorption of heat from the surrounding environment, further improving the system's performance.

[0070] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, optionally, the compressor assembly 100 also includes a liquid receiver 180 and a third bracket 116. The liquid receiver 180 is disposed on the housing 102; the third bracket 116 is connected to the housing 102 or to the liquid receiver 180; the third flash evaporator 130 is fixed to the third bracket 116.

[0071] In this embodiment, the compressor assembly 100 further includes a liquid receiver 180 and a third bracket 116, with the liquid receiver 180 connected to the housing 102. The third bracket 116 is fixedly connected to the housing 102 or to the liquid receiver 180. The third bracket 116 is used to fix the third flash evaporator 130, ensuring that the third flash evaporator 130 is securely installed. Even when the compressor assembly 100 is operating violently, the fixation of the third flash evaporator 130 by the third bracket 116 reduces the shaking of the third flash evaporator 130 and reduces the operating noise of the compressor assembly 100.

[0072] In some embodiments of this application, such as Figure 2 , Figure 3 and Figure 1As shown, optionally, the compressor assembly 100 further includes a first pipe 142 and a second pipe 144. The first end of the first pipe 142 is connected to the first jet port 108, and the second end of the first pipe 142 extends into the first enthalpy-increasing chamber 122 and towards the top wall of the first enthalpy-increasing chamber 122; the first end of the second pipe 144 is connected to the second jet port 110, and the second end of the second pipe 144 extends into the second enthalpy-increasing chamber 124 and towards the top wall of the second enthalpy-increasing chamber 124.

[0073] In this embodiment, the compressor assembly 100 is provided with a first pipe 142 and a second pipe 144. The first pipe 142 is used to connect the first jet port 108 and the first enthalpy-increasing chamber 122, and the first pipe 142 extends into the first enthalpy-increasing chamber 122. The second pipe 144 is used to connect the second jet port 110 and the second enthalpy-increasing chamber 124, and the second pipe 144 extends into the second enthalpy-increasing chamber 124. The two enthalpy-increasing chambers are respectively connected to two cylinders through the first pipe 142 and the second pipe 144.

[0074] Specifically, through the first jet port 108 and the first enthalpy-increasing chamber 122, and with the first pipe 142 extending into the first enthalpy-increasing chamber 122, the gaseous refrigerant in the upper space of the first enthalpy-increasing chamber 122 is transported to the first cylinder 104 of the compressor assembly 100 via the first pipe 142. A second pipe 144 is used to connect the second jet port 110 and the second enthalpy-increasing chamber 124, and extends into the second enthalpy-increasing chamber 124, transporting the gaseous refrigerant in the upper space of the second enthalpy-increasing chamber 124 to the second cylinder 106 of the compressor assembly 100. The pressures of the two enthalpy-increasing chambers are different, resulting in different pressures of the gaseous refrigerant transported to the first cylinder 104 and the second cylinder 106. This improves the enthalpy-increasing effect of the system and enhances the compression work of the compressor assembly 100.

[0075] Specifically, the second end of the first pipe 142 extends to the top wall of the first enthalpy-increasing chamber 122, and the second end of the second pipe 144 extends to the top wall of the second enthalpy-increasing chamber 124, so that the gaseous refrigerant in the upper space of the enthalpy-increasing chamber enters the cylinder, and prevents liquid refrigerant from entering the cylinder through the pipe and damaging the compressor assembly 100.

[0076] The second aspect of this application provides a refrigeration assembly 150, which includes the compressor assembly 100 provided in any of the above embodiments. Therefore, the refrigeration assembly 150 also includes all the beneficial effects of the compressor assembly 100 provided in any of the above embodiments, and will not be repeated here to avoid repetition.

[0077] In some embodiments of this application, such as Figure 2 , Figure 3 and Figure 1As shown, optionally, the compressor assembly 100 is provided with an exhaust port 152 and a return port 154. The refrigeration assembly 150 also includes a four-way valve 156, a first heat exchanger 158, a second throttling component 160, a third throttling component 162, and a second heat exchanger 164. Specifically, the first end of the four-way valve 156 is connected to the exhaust port 152, and the second end of the four-way valve 156 is connected to the return port 154; the first end of the first heat exchanger 158 is connected to the third end of the four-way valve 156; the second end of the first heat exchanger 158 is connected to the enthalpy-increasing assembly 120 via the second throttling component 160; the third throttling component 162 is connected to the enthalpy-increasing assembly 120; the first end of the second heat exchanger 164 is connected to the third throttling component 162, and the second end of the second heat exchanger 164 is connected to the fourth end of the four-way valve 156.

[0078] In this embodiment, the compressor assembly 100 is provided with an exhaust port 152 and a return port 154. The exhaust port 152 of the compressor assembly 100 is where the compressed, high-temperature, high-pressure refrigerant gas is discharged. For example, in an air conditioning system, the refrigerant is compressed inside the compressor, and when it is discharged from the exhaust port 152, the pressure and temperature are usually high. The return port 154 of the compressor assembly 100 is used to allow the low-temperature, low-pressure refrigerant gas evaporated in the evaporator to return to the compressor inlet. This ensures that the compressor assembly 100 can continuously draw in refrigerant gas for the next compression cycle.

[0079] Specifically, the refrigeration assembly 150 mentioned in this application further includes a four-way valve 156, a first heat exchanger 158, a second throttling component 160, a third throttling component 162, and a second heat exchanger 164. The first end of the four-way valve 156 is connected to the exhaust port 152 for conveying high-temperature, high-pressure gaseous refrigerant from the compression assembly; the second end of the four-way valve 156 is connected to the return port 154 for conveying low-temperature, low-pressure gaseous refrigerant back into the compression assembly; the first end of the first heat exchanger 158 is connected to the third end of the four-way valve 156 for conveying low-temperature, low-pressure gaseous refrigerant from the first heat exchanger 158 into the compression assembly; the second end of the first heat exchanger 158 is connected to the second throttling component 160. The first end of the second heat exchanger 164 is connected to the first enthalpy-increasing chamber 122, used to transport the low-temperature, low-pressure liquid refrigerant in the first enthalpy-increasing chamber 122 to the first heat exchanger 158; the third throttling component 162 is connected to the second enthalpy-increasing chamber 124, transporting liquid refrigerant from the third throttling component to the second enthalpy-increasing chamber 124; the first end of the second heat exchanger 164 is connected to the third throttling component 162, allowing high-temperature, high-pressure liquid refrigerant to be transported from the second heat exchanger 164 to the third throttling component 162; the second end of the second heat exchanger 164 is connected to the fourth end of the four-way valve 156, allowing high-temperature, high-pressure gaseous refrigerant in the compression assembly to be transported to the second heat exchanger 164 for energy exchange, and the second heat exchanger outputs high-temperature energy (such as...). Figure 2 (in the direction indicated by arrow A), the second heat exchanger absorbs low-temperature energy (such as...)Figure 3 (The direction indicated by the middle arrow B).

[0080] The compressor assembly 100 is equipped with an exhaust port 152 and an exhaust port 154. The refrigeration assembly 150 also includes a four-way valve 156, a first heat exchanger 158, a second throttling component 160, a third throttling component 162, and a second heat exchanger 164, forming a complete refrigeration system. The high-temperature, high-pressure gaseous refrigerant output from the compressor assembly 100 enters the second heat exchanger 164, where it undergoes energy exchange to output a high-temperature, high-pressure liquid refrigerant. The high-temperature, high-pressure liquid refrigerant is then transported to the second enthalpy-increasing chamber 124 through the third throttling component 162. When the liquid refrigerant enters the second enthalpy-increasing chamber 124, due to the sudden drop in pressure, the refrigerant partially evaporates, forming a gas-liquid mixture. Within the second enthalpy-increasing chamber 124, the liquid and gaseous refrigerants naturally separate due to their different densities. The liquid refrigerant accumulates at the bottom of the second enthalpy-increasing chamber 124, while the gaseous refrigerant accumulates in the upper space of the second enthalpy-increasing chamber 124. Furthermore, the liquid refrigerant at the bottom of the second enthalpy-increasing chamber 124 is further regulated through the throttling orifice 136 of the partition 134, causing partial evaporation of the refrigerant entering the first enthalpy-increasing chamber 122, thus forming a gas-liquid mixture again. Within the first enthalpy-increasing chamber 122, the liquid and gaseous refrigerants naturally separate due to their different densities; the liquid refrigerant accumulates at the bottom of the first enthalpy-increasing chamber 122, while the gaseous refrigerant accumulates in the upper space. The gaseous refrigerant from both enthalpy-increasing chambers is connected to the two nozzles of the compressor assembly 100 through two pipelines, entering the compressor assembly 100 to participate in the compression process. This additional gaseous refrigerant increases the discharge volume of the compressor assembly 100, improving the system's cooling capacity. Simultaneously, the gas replenishment process reduces the compression ratio of the compressor assembly 100, decreasing the compressor's power consumption, thereby improving the system's enthalpy-increasing effect and optimizing the compression work of the compressor assembly 100. Meanwhile, the liquid refrigerant in the two enthalpy-increasing chambers is connected to the evaporator through pipes, providing the evaporator with a lower liquid refrigerant level. This improves the evaporator's heat exchange efficiency, allowing it to better absorb heat from the surrounding environment and further enhance system performance. The first enthalpy-increasing chamber 122 outputs low-temperature, low-pressure liquid refrigerant, which enters the first heat exchanger 158. Energy conversion in the first heat exchanger 158 provides cold air output. The first heat exchanger 158 then supplies low-temperature, low-pressure gaseous refrigerant to the compressor assembly 100 through pipes. The gaseous refrigerant is further compressed after entering the compressor assembly 100, forming the overall refrigeration cycle system.

[0081] Specifically, the compressor assembly 100 of this application also includes a liquid receiver 180, which is used to filter the low-temperature, low-pressure gaseous refrigerant output from the first heat exchanger 158. After filtering out the liquid substances in the low-temperature, low-pressure gaseous refrigerant, the pure low-temperature, low-pressure gaseous refrigerant is delivered to the compressor assembly 100 for compression, preventing liquid substances from entering the compressor assembly 100 and causing equipment damage.

[0082] The third aspect of this application provides a refrigeration device, which includes the compressor assembly 100 provided in any of the above embodiments. Therefore, the refrigeration device also includes all the beneficial effects of the compressor assembly 100 provided in any of the above embodiments, and will not be repeated here to avoid repetition.

[0083] In this embodiment, the refrigeration equipment provided in this application and the refrigeration equipment provided in the comparative example were tested under different operating conditions to obtain the enthalpy increase effect of the refrigeration equipment. It can be concluded that the refrigeration equipment with independent flash vapor secondary separation has a significantly improved enthalpy increase effect, as shown in Table 1. (Table 1: Operating data of the refrigeration equipment provided in this embodiment and the refrigeration equipment provided in the comparative example)

[0084] The test results of the refrigeration equipment under different operating conditions are as follows: The refrigeration coefficient of performance up (COP) of the refrigeration equipment provided in the comparative example is 7.80%, 5.70%, 4.00%, 2.50%, 9.90%, 14.50%, 9.30%, 5.70%, 3.30%, and 16.70%, while the refrigeration coefficient of performance up (COP) of the refrigeration equipment provided in this embodiment is 10.2%, 7.60%, 5.40%, 3.30%, 13.00%, 19.10%, 12.30%, 7.6%, 4.3%, and 22.1%. Based on theoretical cycle calculations using software that calculates thermodynamic properties, the refrigeration capacity of the refrigeration equipment provided in this embodiment is increased by 2% compared to that of the refrigeration equipment provided in the comparative example. The dual-pressure jet enthalpy enhancement provided in this embodiment improves performance by approximately 2% compared to the single-pressure jet enthalpy enhancement provided in the comparative example.

[0085] The refrigeration equipment provided in this embodiment has two independent cylinders. When the pressures of the two cylinders are different, the measured APF (Annual Performance Factor) performance is 2% higher than that of a single independent cylinder refrigeration equipment. However, independent compression requires two independent cylinders, which increases the cost. The jet enthalpy-enhancing twin-cylinder engine has two jet enthalpy-enhancing ports, so no additional cost is required.

[0086] Table 1

[0087]

[0088] In this embodiment, the refrigeration equipment provided in this application and the refrigeration equipment provided in the comparative example were tested under different operating conditions to obtain the enthalpy increase and compression work effect of the refrigeration equipment. It can be concluded that the refrigeration equipment with independent flash vapor secondary separation has significantly improved enthalpy increase and compression work effect. For details, please refer to... Figure 1 and Figure 1 In the diagram, the green line represents the compressor's compression power; the longer the green line, the greater the compression power. The yellow line represents the enthalpy increase; the longer the yellow line, the greater the enthalpy increase. The blue line represents the enthalpy difference of the evaporator. The black line is the isotherm [°C], the red line is the isochoric line [m³ / kg], and the purple line is the isentropic line [KJ / kgK].

[0089] like Figure 4 As shown in the figure, the test graph represents the operating data of a single-pressure jet compressor. When the intermediate pressure is high, the system's enthalpy increase effect is small, and the compressor requires less compression work.

[0090] like Figure 5 As shown in the figure, the test graph represents the operating data of a single-pressure jet compressor. When the intermediate pressure is low, the system has a large enthalpy increase effect, but the compressor requires a large compression work. Therefore, the balance between the compression work and the enthalpy increase effect of the single-pressure jet compressor is poor.

[0091] like Figure 4 Figure 5 Figure 6 As shown, the test chart represents the operating data of the dual-pressure jet enthalpy-increasing compressor. The lower the intermediate pressure, the greater the enthalpy increase; the higher the intermediate pressure, the lower the compression power. Through multiple separations, the compressor simultaneously considers throttling losses and enthalpy increase. The throttling losses are reduced more significantly, and the enthalpy increase is greater. Therefore, the refrigeration equipment provided in this embodiment has better enthalpy-increasing effect and superior compression power. The dual-pressure jet enthalpy-increasing compressor has a better balance between compression power and enthalpy-increasing effect.

[0092] In the claims, description, and accompanying drawings of this application, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and simplifying the descriptive process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood based on the specific circumstances described above.

[0093] In the claims, description, and accompanying drawings of this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In the claims, description, and accompanying drawings of this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A compressor assembly characterized by, The compressor assembly comprises: a shell; a first cylinder arranged in the shell, the first cylinder being provided with a first jet port; a second cylinder arranged in the shell, the second cylinder being provided with a second jet port; a pressure-increasing assembly in communication with the first jet port and the second jet port respectively; wherein the pressure of the first jet port is different from the pressure of the second jet port when the compressor assembly is working. The pressure-increasing assembly comprises: a third flash evaporator provided with a first cavity; a partition plate arranged in the first cavity, the partition plate being attached to the inner part of the first cavity around, the first cavity being divided into a first pressure-increasing cavity and a second pressure-increasing cavity by the partition plate, the first pressure-increasing cavity being in communication with the first jet port, and the second pressure-increasing cavity being in communication with the second jet port; the partition plate being provided with a throttling hole, the throttling hole being located on the side of the partition plate close to the bottom wall of the first cavity, the first pressure-increasing cavity being in communication with the second pressure-increasing cavity through the throttling hole. The compressor assembly further comprises: a liquid accumulator arranged in the shell; a third support connected with the shell or the liquid accumulator; the third flash evaporator being fixed to the third support; a first pipeline, a first end of the first pipeline being in communication with the first jet port, a second end of the first pipeline extending into the first pressure-increasing cavity and extending towards the top wall of the first pressure-increasing cavity; a second pipeline, a first end of the second pipeline being in communication with the second jet port, a second end of the second pipeline extending into the second pressure-increasing cavity and extending towards the top wall of the second pressure-increasing cavity.

2. The compressor assembly of claim 1, wherein, Further comprising: a first throttling component, a first end of the first throttling component being in communication with the first pressure-increasing cavity, and a second end of the first throttling component being in communication with the second pressure-increasing cavity.

3. A refrigeration assembly characterized by, The compressor assembly as claimed in claim 1 or 2.

4. The refrigeration assembly of claim 3, wherein, The compressor assembly is provided with an exhaust port and a return port, and the refrigeration assembly further comprises: a four-way valve, a first end of the four-way valve being in communication with the exhaust port, and a second end of the four-way valve being in communication with the return port; a first heat exchanger, a first end of the first heat exchanger being in communication with a third end of the four-way valve; a second throttling component, a second end of the first heat exchanger being in communication with the pressure-increasing assembly through the second throttling component; a third throttling component, the third throttling component being in communication with the pressure-increasing assembly; a second heat exchanger, a first end of the second heat exchanger being in communication with the third throttling component, and a second end of the second heat exchanger being in communication with a fourth end of the four-way valve.

5. A refrigeration appliance characterized in that, The compressor assembly as claimed in claim 1 or 2. Or The refrigeration assembly as claimed in claim 3 or 4. ​

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