Air conditioning system and compressor system

Abstract

The utility model provides an air conditioning system and a compressor system. The compressor system comprises a gas-liquid separator, a condenser, an evaporator, a compressor, a refrigerant pump and a throttling device. The refrigerant pump is located between a bottom liquid outlet pipe of the gas-liquid separator and an inlet of the condenser, the compressor is located between a top gas outlet pipe of the gas-liquid separator and the inlet of the condenser, an outlet of the condenser is connected with an inlet of the evaporator through the throttling device, and an outlet of the evaporator is connected with a top inlet of the gas-liquid separator. Low-pressure liquid refrigerants are circulated through the refrigerant pump, so that the low-pressure liquid refrigerants exchange heat with high-temperature media of the evaporator and the condenser, pressure is increased through evaporation, enough pressure and gaseous refrigerants are provided for follow-up operation of the compressor, and the problems that in an existing electric heating mode, the needed power is too large, and the heating efficiency is high are solved. The energy consumption of a compressor system is large; and the investment cost is increased.

Description

Technical Field

[0001] This application relates to the field of compressor heating technology, specifically to an air conditioning system and a compressor system. Background Technology

[0002] When the ambient temperature is below the refrigerant's boiling point, the refrigerant is completely in a liquid state, and the pressure sensor measures a negative pressure. In a compressor system, because the negative pressure is far below the compressor's limit, the compressor will not be able to start; furthermore, completely liquid refrigerant cannot enter the compressor, otherwise liquid compression will occur, damaging the compressor.

[0003] To address these issues, current methods typically involve adding electric heating to the compressor system piping, containers, and heat exchangers to raise the refrigerant temperature and induce evaporation. However, since refrigerant evaporation is a latent heat process, it requires a significant amount of heat, necessitating high-power electric heating, which leads to high energy consumption and increased investment costs in the compressor system. Utility Model Content

[0004] In response, this application provides an air conditioning system and a compressor system to solve the problem that existing electric heating methods require excessive power, resulting in high energy consumption and increased investment costs for the compressor system.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] The first aspect of this application discloses a compressor system, including: a gas-liquid separator, a condenser, an evaporator, a compressor, a refrigerant pump, and a throttling device;

[0007] The refrigerant pump is located between the bottom liquid outlet pipe of the gas-liquid separator and the inlet of the condenser, the compressor is located between the top gas outlet pipe of the gas-liquid separator and the inlet of the condenser, the outlet of the condenser is connected to the inlet of the evaporator through the throttling device, and the outlet of the evaporator is connected to the top inlet of the gas-liquid separator.

[0008] Optionally, the compressor system described above further includes a first check valve, which is connected in series between the outlet of the refrigerant pump and the inlet of the condenser.

[0009] Optionally, the compressor system described above further includes a second check valve, which is connected in series between the outlet of the compressor and the inlet of the condenser.

[0010] Optionally, the compressor system described above further includes an inlet pressure sensor, which is located at the inlet of the refrigerant pump.

[0011] Optionally, the compressor system described above further includes an outlet pressure sensor, which is located at the outlet of the refrigerant pump.

[0012] Optionally, in the compressor system described above, the throttling device includes: an electronic expansion valve, a solenoid valve, and a capillary tube.

[0013] Optionally, in the compressor system described above, the inlet of the refrigerant pump is connected to the bottom liquid outlet pipe of the gas-liquid separator, and the outlet of the refrigerant pump is connected to the inlet of the condenser;

[0014] The compressor's suction port is connected to the top outlet pipe of the gas-liquid separator, and the compressor's discharge port is connected to the inlet of the condenser.

[0015] Optionally, in the compressor system described above, at least one of the compressor, the refrigerant pump, the evaporator, the condenser, the gas-liquid separator, and the throttling device is wrapped with insulating material;

[0016] And / or, at least one of the pipelines connecting the compressor to the gas-liquid separator and the condenser, the pipeline connecting the refrigerant pump to the gas-liquid separator and the condenser, the pipeline connecting the condenser to the throttling device, the pipeline connecting the throttling device to the evaporator, and the pipeline connecting the evaporator to the gas-liquid separator is wrapped with insulating material.

[0017] Optionally, in the compressor system described above, the insulating material includes insulating cotton.

[0018] The second aspect of this application discloses an air conditioning system, including a compressor system as described in any of the claims of the first aspect.

[0019] The compressor system provided in this application includes: a gas-liquid separator, a condenser, an evaporator, a compressor, and a refrigerant pump. The refrigerant pump is located between the bottom liquid outlet pipe of the gas-liquid separator and the inlet of the condenser. The compressor is located between the top gas outlet pipe of the gas-liquid separator and the inlet of the condenser. The outlet of the condenser is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the top inlet of the gas-liquid separator. The low-pressure liquid refrigerant is circulated by the refrigerant pump, so that the low-pressure liquid refrigerant exchanges heat with the high-temperature medium of the evaporator and condenser, thereby evaporating and increasing the pressure. This provides sufficient pressure and gaseous refrigerant for the subsequent operation of the compressor, solving the problem that the existing electric heating method requires too much power, resulting in high energy consumption and increased investment costs for the compressor system. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a first compressor system provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of a second compressor system provided in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a third compressor system provided in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of a fourth compressor system provided in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of the fifth compressor system provided in the embodiments of this application;

[0026] Figure 6 This is a schematic diagram of the structure of the sixth compressor system provided in the embodiments of this application;

[0027] Among them, the gas-liquid separator has an inlet 1, a top gas outlet pipe 2, a bottom liquid outlet pipe 3, a gas-liquid separator 4, an inlet pressure sensor 5, an outlet pressure sensor 6, a refrigerant pump 7, a first check valve 8, a second check valve 9, a compressor 10, a condenser 11, a throttling device 12, and an evaporator 13. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] First of all, it should be noted that, according to the inventor's research, the existing electric heating method has problems such as the increased number of components in the compressor system, the increased number of electric heaters, the complex arrangement of electric heaters, and potential electrical safety hazards.

[0030] Based on this, this application provides a compressor system that solves the problems of excessive power required by existing electric heating methods, resulting in high energy consumption and increased investment costs in the compressor system. It also solves the problems of existing electric heating methods having many compressor system components, increasing the number of electric heating elements, leading to complex electric heating arrangements and potential electrical safety hazards.

[0031] See Figures 1 to 6 The compressor system mainly includes: gas-liquid separator 4, condenser 11, evaporator 13, compressor 10, refrigerant pump 7 and throttling device 12;

[0032] The refrigerant pump 7 is located between the bottom liquid outlet pipe 3 of the gas-liquid separator 4 and the inlet of the condenser 11 in the compressor system. The compressor 10 in the compressor system is located between the top gas outlet pipe 2 of the gas-liquid separator 4 and the inlet of the condenser 11. The outlet of the condenser 11 is connected to the inlet of the evaporator 13 in the compressor system through the throttling device 12. The outlet of the evaporator 13 is connected to the top inlet 1 of the gas-liquid separator 4.

[0033] In practical applications, the same is true. Figure 1 As shown, the inlet of the refrigerant pump 7 is connected to the bottom liquid outlet pipe 3 of the gas-liquid separator 4, and the outlet of the refrigerant pump 7 is connected to the inlet of the condenser 11; the suction port of the compressor 10 is connected to the top gas outlet pipe 2 of the gas-liquid separator 4, and the discharge port of the compressor 10 is connected to the inlet of the condenser 11.

[0034] It is understandable that in the compressor system, compressor 10 and refrigerant pump 7 are connected in parallel. The inlet of refrigerant pump 7 is connected to the bottom liquid outlet pipe 3 of gas-liquid separator 4, the outlet of refrigerant pump 7 is connected to the inlet pipe of condenser 11, the suction port of compressor 10 is connected to the top gas outlet pipe 2 of gas-liquid separator 4, and the discharge port of compressor 10 is connected to the inlet pipe of condenser 11.

[0035] The gas-liquid separator 4 is used to store refrigerant. The liquid refrigerant, which has a higher density, sinks to the bottom of the gas-liquid separator 4, while the gaseous refrigerant, which has a lower density, floats to the top of the gas-liquid separator 4. Therefore, the gas-liquid separator 4 can be configured as a 1-in-2-out structure, that is, it has one inlet and two outlets. The two outlets are connected to the refrigerant pump 7 and the compressor 10, respectively, to provide liquid refrigerant to the refrigerant pump 7 and gaseous refrigerant to the compressor 10.

[0036] It should be noted that, since the inlet of the refrigerant pump 7 is connected to the bottom liquid outlet pipe 3 of the gas-liquid separator 4, and the outlet of the refrigerant pump 7 is connected to the inlet of the condenser 11, it can ensure that the refrigerant entering the condenser 10 is in liquid state, preventing cavitation; and it can also deliver the liquid refrigerant to the condenser 11 and the evaporator 13, where the high-temperature medium of the condenser 11 and the evaporator 13 exchanges heat with the liquid refrigerant, causing the liquid refrigerant to evaporate and increase the pressure.

[0037] It should also be noted that the refrigerant used in this application is a high-boiling-point refrigerant, such as R245fa, with a boiling point of 15.05℃. For high-boiling-point refrigerants, when the ambient temperature is higher than the refrigerant's boiling point but the ambient temperature is low, although some of the refrigerant can evaporate into a gaseous state in the compressor system, the compressor 10 still cannot start because its pressure is below the operating range. Furthermore, when the ambient temperature is lower than or equal to the refrigerant's boiling point, the refrigerant is a pure liquid in the gas-liquid separator 4, and its pressure is negative. For a conventional vapor compression refrigeration cycle, pure liquid refrigerant is incompressible, and excessive liquid refrigerant entering the compressor 10 will cause liquid slugging and damage the compressor 10. Therefore, to start the compressor 10 at lower ambient temperatures, the refrigerant temperature in the compressor system needs to be raised beforehand to evaporate and increase the pressure.

[0038] In this regard, before the compressor 10 in the compressor system is run, the refrigerant pump 7 is used to circulate the liquid refrigerant. During the circulation process, the liquid refrigerant exchanges heat with the medium in the evaporator 13 and condenser 11, which are at a temperature higher than the ambient temperature, thereby causing the liquid refrigerant to evaporate and increase in pressure.

[0039] It should be noted that by using refrigerant pump 7 to circulate liquid refrigerant and exchange heat with the medium in evaporator 13 and condenser 11, which are at temperatures higher than ambient, the temperature of the medium in evaporator 13 and condenser 11 can be fully utilized, thereby improving the energy utilization efficiency of the compressor system. Furthermore, refrigerant pump 7 has low power consumption and controllable operation. Compared with existing electric heating methods, the compressor system has higher safety and reliability, avoiding the problem of overheating and damage to insulation cotton and related components in the compressor system.

[0040] It should also be noted that the refrigerant pump in this application needs to be turned on under specific conditions and before the compressor 10 in the compressor system starts running, in order to circulate the refrigerant in the compressor system.

[0041] In some embodiments, the throttling device 12 is connected in series between the outlet of the condenser 11 and the inlet of the evaporator 13.

[0042] In practical applications, the throttling device 12 may include an electronic expansion valve, a solenoid valve, and a capillary tube; of course, it is not limited to these, and may be other existing devices with flow regulation. This application does not limit the specific type of the throttling device 12, and all of them are within the protection scope of this application.

[0043] It should be noted that since the throttling device 12 is located between the outlet of the condenser 11 and the inlet of the evaporator 13, it can be used to adjust the amount of refrigerant passing through the evaporator 13 and reduce the pressure so that the refrigerant can fully evaporate and exchange heat in the evaporator 13, thereby further improving the evaporation and heat exchange effect of the refrigerant pump 7 in the evaporator 13.

[0044] In practical applications, in order to further reduce the impact of ambient temperature on the refrigerant in the compressor system, all components and pipelines in the compressor system can be wrapped with insulating material.

[0045] Specifically, insulation material can be wrapped around the compressor 10, refrigerant pump 7, evaporator 13, condenser 11, gas-liquid separator 4, and throttling device 12. In addition, insulation material can also be wrapped around the pipes connecting the compressor 10 to the gas-liquid separator 4 and condenser 11, the pipes connecting the refrigerant pump 7 to the gas-liquid separator 4 and condenser 11, the pipes connecting the condenser 11 to the throttling device 12, the pipes connecting the throttling device 12 to the evaporator 13, and the pipes connecting the evaporator 11 to the gas-liquid separator 4.

[0046] Of course, it is not limited to this. Simply wrapping at least one of the compressor 10, refrigerant pump 7, evaporator 13, condenser 11, gas-liquid separator 4, and throttling device 12 with insulating material, and / or wrapping at least one of the pipes connecting the compressor 10 to the gas-liquid separator 4 and condenser 11, the refrigerant pump 7 to the gas-liquid separator 4 and condenser 11, the condenser 11 to the throttling device 12, the throttling device 12 to the evaporator 13, and the evaporator 11 to the gas-liquid separator 4 with insulating material, can achieve a certain insulation effect. It is understood that wrapping all the above-mentioned components and all the pipes with insulating material can enable the compressor system to achieve the optimal insulation effect.

[0047] It should be noted that the devices and pipes wrapped with thermal insulation material can be determined according to the application environment and user needs. Some devices and pipes can be wrapped, or all devices and pipes can be wrapped, all of which are within the protection scope of this application.

[0048] In practical applications, insulation materials include, but are not limited to, insulation cotton, rock wool boards, glass wool, mineral wool, asbestos, etc., depending on the application environment and user needs. This application does not limit the specific type of insulation material, all of which are within the scope of protection of this application.

[0049] Based on the above, the compressor system provided in this embodiment includes: a gas-liquid separator 4, a condenser 11, an evaporator 13, a compressor 10, a refrigerant pump 7, and a throttling device 12; the refrigerant pump 7 is located between the bottom liquid outlet pipe 3 of the gas-liquid separator 4 and the inlet of the condenser 11 in the compressor system; the compressor 10 is located between the top gas outlet pipe 2 of the gas-liquid separator 4 and the inlet of the condenser 11; the outlet of the condenser 11 is connected to the inlet of the evaporator 13 in the compressor system through the throttling device 12; and the outlet of the evaporator 13 is connected to the gas-liquid separator 4. The top inlet 1 circulates low-pressure liquid refrigerant through refrigerant pump 7, allowing the low-pressure liquid refrigerant to exchange heat with the high-temperature medium in evaporator 13 and condenser 11, thereby evaporating and increasing the pressure. This provides sufficient pressure and gaseous refrigerant for the subsequent operation of compressor 10. This solves the problem of excessive power required by existing electric heating methods, which leads to high energy consumption and increased investment costs in the compressor system. At the same time, it also solves the problem that existing electric heating methods have many system components, increasing the number of electric heating elements, resulting in complex electric heating arrangements and potential electrical safety hazards.

[0050] Optionally, in another compressor system provided in this application, such as Figure 2 or Figure 6 As shown, it also includes: a first check valve 8, which is connected in series between the outlet of the refrigerant pump 7 and the inlet of the condenser 11.

[0051] In practical applications, the refrigerant pump 7 in this application needs to be turned on under specific conditions and before the compressor 10 in the compressor system starts running, in order to circulate the refrigerant in the compressor system. The operating states of the refrigerant pump 7 and the compressor 10 are mutually exclusive; that is, the compressor 10 stops when the refrigerant pump 7 is turned on, and the compressor 10 starts when the refrigerant pump 7 reaches the shutdown condition. Therefore, to prevent the liquid refrigerant at the outlet of the refrigerant pump 7 from bypassing the compressor 10 and causing leakage when the refrigerant pump 7 is turned on, a first one-way valve 8 can be added between the outlet of the refrigerant pump 7 and the inlet of the condenser 11.

[0052] It should be noted that the specific selection of the first check valve 8 can be determined according to the application environment and user needs. This application does not impose specific limitations, and all of them are within the protection scope of this application.

[0053] Optionally, in another compressor system provided in this application, such as Figure 3 or Figure 6 As shown, the compressor system also includes a second check valve 9, which is connected in series between the outlet of the compressor 10 and the inlet of the condenser 11.

[0054] In practical applications, the refrigerant pump 7 in this application needs to be turned on under specific conditions and before the compressor 10 in the compressor system starts operating, in order to circulate the refrigerant in the compressor system. The operating states of the refrigerant pump 7 and the compressor 10 are mutually exclusive; that is, the compressor 10 stops when the refrigerant pump 7 is turned on, and the compressor 10 starts when the refrigerant pump 7 reaches the shutdown condition. Therefore, to prevent gaseous refrigerant from the discharge port of the compressor 10 from bypassing the refrigerant pump 7 and causing leakage when the compressor 10 is turned on, a second one-way valve 9 can be added between the discharge port of the compressor 10 and the inlet of the condenser 11.

[0055] It should be noted that the specific selection of the second check valve 9 can be determined according to the application environment and user needs. This application does not impose specific limitations, and all of them are within the protection scope of this application.

[0056] Optionally, in another compressor system provided in this application, such as Figure 4 or Figure 6 As shown, it also includes: an inlet pressure sensor 5, which is installed at the inlet of the refrigerant pump 7.

[0057] In practical applications, an inlet pressure sensor 5 is added to the inlet of the refrigerant pump 7 to collect the inlet pressure of the refrigerant pump 7.

[0058] It should be noted that before starting the compressor 10 in the compressor system, the medium temperature of the evaporator 13 and condenser 11 in the compressor system can be detected first. When the medium temperature is greater than the boiling point temperature of the refrigerant and the inlet pressure of the refrigerant 7 is less than or equal to a first preset value, the refrigerant pump 7 can be run to exchange heat with the refrigerant through the medium in the evaporator 13 and condenser 11, increasing the evaporation and pressure of the refrigerant to meet the operating requirements of the compressor 10 in the compressor system. The medium temperature can be either the inlet temperature or the outlet temperature of the evaporator 13 and condenser 11, depending on the application environment and user requirements, and is within the scope of protection of this application.

[0059] It should also be noted that the specific value of the first preset value can be adjusted according to different compressor systems and refrigerant type parameters. This application does not impose specific limitations on it, and all such values ​​are within the scope of protection of this application.

[0060] Optionally, in another compressor system provided in this application, such as Figure 5 or Figure 6 As shown, it also includes: an outlet pressure sensor 6, which is located at the outlet of the refrigerant pump 7.

[0061] In practical applications, an outlet pressure sensor 6 is added to the outlet of the refrigerant pump 7 to collect the outlet pressure of the refrigerant pump 7.

[0062] It should be noted that during the operation of refrigerant pump 7, the refrigerant pump 7's outlet pressure and / or inlet pressure can be used to determine whether the refrigerant pump 7 meets the shutdown conditions. Specifically, when the refrigerant pump 7's outlet pressure and / or inlet pressure is greater than a second preset value, the refrigerant pump 7 is considered to meet the shutdown conditions, and the refrigerant pump 7 can be controlled to stop operation and switch to compressor-on mode.

[0063] It should also be noted that the specific value of the second preset value can be adjusted according to different compressor systems and refrigerant type parameters. This application does not impose specific limitations on it, and all such adjustments are within the scope of protection of this application. Specifically, in practice, the second preset value is greater than the first preset value.

[0064] In summary, combined with Figure 6 The compressor system provided in this application can be configured as a refrigerant heat pump system by means of a refrigerant pump 7, a gas-liquid separator 4, an inlet pressure sensor 5, an outlet pressure sensor 6, a first check valve 8, a second check valve 9, a condenser 11, a throttling device 12, and an evaporator 13.

[0065] First, by setting the gas-liquid separator 4 to a 1-inlet, 2-outlet structure, the refrigerant pump 7 circulates the refrigerant in the compressor system, and the refrigerant is heat-exchanged using the medium of the condenser 11 and the evaporator 13.

[0066] Secondly, by setting the first one-way valve 8 and the second one-way valve 9, refrigerant leakage in parallel devices can be prevented during the operation of the refrigerant pump 7 or the compressor 10, further improving the operational reliability of the compressor system.

[0067] In addition, by adding an inlet pressure sensor 5 and an outlet pressure sensor 6 to the inlet and outlet of the refrigerant pump 7, the operation of the refrigerant pump 7 can be precisely controlled by the inlet and outlet pressures of the refrigerant pump 7, and the compressor mode can be switched in time when the operating conditions of the compressor 10 are met.

[0068] Finally, by adding a throttling device 12 to the outlet of the condenser 11 and the inlet of the evaporator 13, the amount of refrigerant entering the evaporator 13 can be controlled and the refrigerant pressure can be reduced, so that the refrigerant can fully evaporate and exchange heat in the evaporator 13, further improving the evaporation and heat exchange effect of the refrigerant pump 7 in the evaporator 13.

[0069] To avoid the influence of ambient temperature on the compressor system, it is also possible to... Figure 6 The compressor system shown is wrapped with insulation to further improve the operational stability of the compressor system.

[0070] It is worth noting that, compared to the existing method of adding electric heating to all pipelines and components in the compressor system to raise the refrigerant temperature through heat exchange with the refrigerant, thereby causing the refrigerant to evaporate and increase the pressure, electric heating consumes a lot of energy, multi-stage electric heating wiring poses safety hazards, and excessively high electric heating temperature can affect the life of the insulation cotton or even burn it, posing a safety hazard. In contrast, this application uses a refrigerant pump 7 to circulate the refrigerant, and the heat exchange occurs through the medium between the condenser 11 and the evaporator 13 in the compressor system, causing the refrigerant to evaporate and increase the pressure. There is no need to use electric heating to heat the refrigerant, which not only reduces energy consumption but also avoids the impact of excessively high temperature on the insulation cotton, eliminating safety hazards.

[0071] Optionally, another embodiment of this application also provides an air conditioning system, including: a compressor system as described in any of the above embodiments.

[0072] In practical applications, according to the medium, the air conditioning system provided in this application can be a refrigerant-based system, where the cooling and heating loads are directly borne by the refrigerant of the refrigeration system; while according to the type, the air conditioning system provided in this application can be an indirect cooling system, where the refrigerant evaporates and absorbs heat in a dedicated evaporator to cool the chilled water, and the chilled water is pumped to a dedicated water-cooled surface cooler to cool the air.

[0073] Of course, it is not limited to the above. The specific type of air conditioning system can also be determined according to the application environment and user needs. This application does not make specific limitations on it, and all of them are within the protection scope of this application.

[0074] It should be noted that the relevant descriptions of the compressor system can be found in the corresponding embodiments described above, and will not be repeated in this application; similarly, the relevant descriptions of the air conditioning system can be found in the prior art, and will not be repeated in this application.

[0075] The features described in the various embodiments of this specification can be substituted for or combined with each other. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0076] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0077] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0078] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A compressor system, characterized in that, include: Gas-liquid separator, condenser, evaporator, compressor, refrigerant pump and throttling device; The refrigerant pump is located between the bottom liquid outlet pipe of the gas-liquid separator and the inlet of the condenser, the compressor is located between the top gas outlet pipe of the gas-liquid separator and the inlet of the condenser, the refrigerant pump and the compressor are connected in parallel, the outlet of the condenser is connected to the inlet of the evaporator through the throttling device, and the outlet of the evaporator is connected to the top inlet of the gas-liquid separator.

2. The compressor system according to claim 1, characterized in that, Also includes: A first check valve is connected in series between the outlet of the refrigerant pump and the inlet of the condenser.

3. The compressor system according to claim 1, characterized in that, Also includes: A second check valve is connected in series between the outlet of the compressor and the inlet of the condenser.

4. The compressor system according to claim 1, characterized in that, Also includes: An inlet pressure sensor is provided, which is located at the inlet of the refrigerant pump.

5. The compressor system according to claim 1, characterized in that, Also includes: An outlet pressure sensor is provided at the outlet of the refrigerant pump.

6. The compressor system according to claim 1, characterized in that, The throttling device includes: an electronic expansion valve, a solenoid valve, and a capillary tube.

7. The compressor system according to any one of claims 1-6, characterized in that, The inlet of the refrigerant pump is connected to the bottom liquid outlet pipe of the gas-liquid separator, and the outlet of the refrigerant pump is connected to the inlet of the condenser. The compressor's suction port is connected to the top outlet pipe of the gas-liquid separator, and the compressor's discharge port is connected to the inlet of the condenser.

8. The compressor system according to any one of claims 1-6, characterized in that, At least one of the compressor, the refrigerant pump, the evaporator, the condenser, the gas-liquid separator, and the throttling device is wrapped with insulating material; And / or, at least one of the following: the piping connecting the compressor to the gas-liquid separator and the condenser; the piping connecting the refrigerant pump to the gas-liquid separator and the condenser; the piping connecting the condenser to the throttling device; the piping connecting the throttling device to the evaporator; and the piping connecting the evaporator to the gas-liquid separator; is wrapped with insulating material.

9. The compressor system according to claim 8, characterized in that, The insulating material includes: insulating cotton.

10. An air conditioning system, characterized in that, include: The compressor system as described in any one of claims 1-9.

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