Compressor cooling system, compressor and water chilling unit

Abstract

The utility model provides a compressor cooling system, compressor and water chilling unit, including: a first cooling pipeline, an inlet of the first cooling pipeline is communicated with a condenser, the first cooling pipeline is used for cooling the to-be-cooled part of the compressor; an inlet of the second cooling pipeline communicates with a refrigerant outlet of the compressor, and the second cooling pipeline is used for cooling a to-be-cooled part of the compressor; the detection device is used for detecting the current temperature of the compressor; and the controller is in signal connection with the detection device so as to adjust the flow of the refrigerant entering the first cooling pipeline and the second cooling pipeline according to the current temperature of the compressor. The compressor cooling system solves the technical problem that in the prior art, a compressor cooling system is poor in cooling efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor cooling structure technical field, concretely relates to a compressor cooling system, compressor and water chiller. BACKGROUND

[0002] The centrifugal water chiller unit has large operation power, and the used compressor generates much heat, is cooled by air alone, and is difficult to cool down the temperature.

[0003] If the cooling water of the unit is directly used to take the heat generated by the compressor to the cooling tower and dissipate to the outdoor environment, the cooling mode has the following disadvantages: 1, the cooling water of the unit is directly contacted with the external environment, and the water quality is poor, which can easily cause the internal flow path of the compressor to scale and reduce the heat exchange efficiency; 2, when the unit operates in a hot environment, the cooling water temperature is high, and the cooling capacity is insufficient; 3, the cooling water is directly contacted with the compressor motor, and there is a great electrical safety hazard.

[0004] The existing centrifugal unit compressor refrigerant direct cooling mode takes liquid from the condenser bottom liquid collection package, and cools the compressor after throttling by an electronic expansion valve. The main heat exchange mode of the refrigerant cooling is latent heat exchange (latent heat exchange mainly refers to the heat absorbed by the liquid refrigerant when it changes from liquid to gas), and the liquid refrigerant changes phase after absorbing heat in the compressor flow path, realizing the cooling of the compressor motor. The disadvantages of this cooling mode are: 1, the motor temperature fluctuates greatly, and the over-temperature (temperature is too high) problem is prone to occur; 2, the compressor inlet temperature is too low, and the condensation phenomenon is prone to occur in a high temperature environment.

[0005] Therefore, the prior art needs to be further developed. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the above technical deficiencies, and provides a compressor cooling system, compressor and water chiller, to solve the technical problem of poor cooling efficiency of the compressor cooling system in the related art.

[0007] To achieve the above technical purpose, the utility model takes the following technical scheme: provide a kind of compressor cooling system, comprising: first cooling pipeline, the inlet of first cooling pipeline is communicated with condenser, and first cooling pipeline is used to cool the part to be cooled of compressor;Second cooling pipeline, the inlet of second cooling pipeline is communicated with the refrigerant outlet of compressor, and second cooling pipeline is used to cool the part to be cooled of compressor;Detection device, detection device is used to detect the current temperature of compressor;Controller, controller is signal connected with detection device, to adjust the refrigerant flow in first cooling pipeline and second cooling pipeline according to the current temperature of compressor.

[0008] Further, the part to be cooled of compressor is provided with compressor cooling flow path, and the compressor cooling flow path is used to cool the part to be cooled of compressor, and the compressor cooling flow path is communicated with first cooling pipeline and second cooling pipeline respectively.

[0009] Further, first cooling pipeline includes first throttling device, and the first throttling device is located between condenser and compressor cooling flow path, and the first throttling device is used to adjust the refrigerant flow size in first cooling pipeline.

[0010] Further, second cooling pipeline includes second throttling device, and the second throttling device is located between the refrigerant outlet of compressor and compressor cooling flow path, and the second throttling device is used to adjust the refrigerant flow size in second cooling pipeline.

[0011] Further, detection device includes temperature detector, and the temperature detector is used to detect the current temperature of compressor, wherein the temperature detector includes multiple.

[0012] Further, multiple temperature detectors include: first temperature sensing bag, the first temperature sensing bag is located at the inlet of compressor cooling flow path to detect the current temperature at the inlet of compressor cooling flow path;Second temperature sensing bag, the second temperature sensing bag is located in compressor cooling flow path to detect the current temperature inside compressor cooling flow path;Third temperature sensing bag, the third temperature sensing bag is located at the outlet of compressor cooling flow path to detect the current temperature at the outlet of compressor cooling flow path.

[0013] Further, the outlet of first cooling pipeline is communicated with evaporator;And / or, the outlet of second cooling pipeline is communicated with evaporator.

[0014] Further, third throttling device is arranged between condenser and evaporator to throttle the refrigerant about to enter evaporator.

[0015] A kind of compressor, and the compressor includes the compressor cooling system described above.

[0016] A kind of water chilling unit, and the water chilling unit includes the compressor cooling system described above.

[0017] Beneficial effects:

[0018] 1、The inlet of the first cooling pipeline is communicated with the condenser to lead out the liquid refrigerant in the condenser, and the liquid refrigerant is introduced into the internal flow passage of the compressor to cool and heat exchange, so as to cool the part to be cooled of the compressor; the inlet of the second cooling pipeline is communicated with the refrigerant outlet of the compressor to lead out the gaseous refrigerant at the refrigerant outlet of the compressor, and the gaseous refrigerant is introduced into the part to be cooled of the compressor to cool the compressor by using the gaseous refrigerant, so that the current temperature of the compressor can be maintained, the compressor can be effectively prevented from running at low temperature due to excessive cooling, and condensation is prevented from being generated due to the excessively low surface temperature; according to the current temperature of the compressor, the first cooling pipeline or the second cooling pipeline is controlled to be opened or closed, or the flow rate in the first cooling pipeline or the second cooling pipeline is controlled according to the current temperature, the compressor is cooled by using refrigerants in different states, the compressor is protected from being overheated, condensation is prevented from being generated on the surface due to the excessively low temperature, the stability of the operation of the compressor is improved, the disadvantages of water cooling and refrigerant cooling are solved, and the technical problem of poor cooling efficiency of the compressor cooling system in the related art is solved.

[0019] 2、The liquid refrigerant taken from the condenser is supplied to the compressor through the cooling circuit after the first throttling device, and the motor is cooled by the latent heat of liquid phase change. The cooling mode can effectively control the temperature of the compressor to be not too high when the compressor operates in a large heat generating condition. The gaseous refrigerant taken from the compressor exhaust position is supplied to the compressor through the cooling circuit after the second throttling device, and the motor is cooled by the sensible heat of the gas. The condensation is effectively avoided due to the excessively low cooling temperature, and the short circuit and explosion of components are prevented.

[0020] 3、In the compressor cooling system in the embodiment, the first cooling pipeline and the second cooling pipeline are arranged, the cooling solution circulates in the cooling pipeline to prevent the inner wall from being scaled, the water is prevented from directly contacting the motor of the compressor to improve the electrical safety, the refrigerants in different states are used for cooling to reduce the temperature difference between the compressor and the environment, the condensation on the surface of the compressor is prevented, the internal components are prevented from being damaged, the reliability of the operation is improved, the advantages of water cooling and refrigerant cooling are combined, and the disadvantages of water cooling or refrigerant cooling alone are solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of a compressor cooling system adopted by the embodiment of the utility model;

[0022] Figure 2 is a structure schematic view of the first cooling pipeline of the compressor cooling system adopted by the embodiment of the utility model being opened;

[0023] Figure 3It is the second cooling pipeline opening structure schematic diagram of the compressor cooling system which is adopted by the embodiment of the utility model.

[0024] Among them, the above-mentioned drawing includes the following figure marks:

[0025] 1, first cooling pipeline; 11, first throttling device; 2, second cooling pipeline; 21, second throttling device; 3, condenser; 4, compressor; 41, compressor cooling flow path; 5, detection device; 51, first temperature sensing bag; 52, second temperature sensing bag; 53, third temperature sensing bag; 6, connecting pipeline; 7, evaporator; 8, third throttling device. Specific implementation

[0026] In order to make the person in this technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the protection scope of the present application.

[0027] Embodiment 1

[0028] According to the embodiment of the utility model, a kind of compressor cooling system is provided, please refer to Figures 1 to 3 Including: first cooling pipeline 1, the inlet of first cooling pipeline 1 is communicated with condenser 3, and first cooling pipeline 1 is used to cool the cooling part of compressor 4;Second cooling pipeline 2, the inlet of second cooling pipeline 2 is communicated with the refrigerant outlet of compressor 4, and second cooling pipeline 2 is used to cool the cooling part of compressor 4;Detection device 5, detection device 5 is used to detect the current temperature of compressor 4;Controller, controller is signal connected with detection device 5, to adjust the refrigerant flow in first cooling pipeline 1 and second cooling pipeline 2 according to the current temperature of compressor 4.

[0029] Specifically, in first cooling pipeline 1, liquid refrigerant is taken from condenser 3 liquid collection bag, and after cooling compressor 4, it finally returns to evaporator 7, and the flow of refrigerant relies on the pressure difference between condenser 3 and evaporator 7.

[0030] Specifically, in second cooling pipeline 2, gaseous refrigerant flows in second cooling pipeline 2 under the driving of the exhaust pressure of compressor 4, and the refrigerant in second cooling pipeline 2 is cooled by gas sensible heat, while cooling compressor 4, it can reduce the temperature difference between compressor 4 and environment, effectively avoid condensation due to too low cooling temperature, prevent short circuit and explosion of components, avoid damage to internal components, improve the reliability of operation.

[0031] It can be understood that the refrigerants used in the first cooling pipeline 1 and the second cooling pipeline 2 are refrigerants in different states, respectively, wherein the first cooling pipeline 1 leads out the liquid refrigerant from the condenser 3 after condensation heat release, and the refrigerant is a relatively high-temperature liquid refrigerant; the second cooling pipeline 2 leads out the gaseous refrigerant from the refrigerant outlet of the compressor 4, and the temperature is higher than that of the liquid refrigerant in the first cooling pipeline 1 and lower than the working temperature of the compressor, so that refrigerants in different states can be used according to the current temperature, thereby maintaining the stability of the operation of the compressor 4.

[0032] Through the above setting, the inlet of the first cooling pipeline 1 communicates with the condenser 3 to lead out the liquid refrigerant in the condenser 3, and the liquid refrigerant is used for heat exchange and cooling in the internal flow passage of the compressor 4 to cool the to-be-cooled part of the compressor 4. The inlet of the second cooling pipeline 2 communicates with the refrigerant outlet of the compressor 4 to lead out the gaseous refrigerant at the refrigerant outlet of the compressor 4, and the gaseous refrigerant is used to cool the to-be-cooled part of the compressor 4, thereby cooling the compressor using the gaseous refrigerant, maintaining the current temperature of the compressor, and effectively preventing the compressor 4 from being cooled too much to cause low-temperature operation of the compressor 4 and condensation due to too low surface temperature. According to the current temperature of the compressor 4, the first cooling pipeline 1 or the second cooling pipeline 2 is controlled to be opened or closed, or the flow rate in the first cooling pipeline 1 or the second cooling pipeline 2 is controlled according to the current temperature, the compressor is cooled by using refrigerants in different states, the compressor is prevented from being protected from being too high in temperature, and condensation is prevented from being generated on the surface due to too low temperature, the stability of the operation of the compressor is improved, the shortcomings of water cooling are solved, and the problems of condensation and over-temperature caused by refrigerant cooling are solved, thereby solving the technical problem of poor cooling efficiency of the compressor cooling system in the related art.

[0033] In the compressor cooling system of the embodiment, by providing the first cooling pipeline 1 and the second cooling pipeline 2, the cooling solution circulates in the cooling pipeline to prevent the inner wall from being scaled; the water is prevented from directly contacting the motor of the compressor 4 to improve electrical safety; different state refrigerants are used for cooling to reduce the temperature difference between the compressor and the environment, prevent the surface of the compressor 4 from condensing, avoid damage to internal components, and improve the reliability of operation.

[0034] In the compressor cooling system of the embodiment, referring to Figure 1 , the to-be-cooled part of the compressor 4 is provided with a compressor cooling flow path 41, the compressor cooling flow path 41 is used to cool the to-be-cooled part of the compressor 4, and the compressor cooling flow path 41 respectively communicates with the first cooling pipeline 1 and the second cooling pipeline 2.

[0035] Through the above setting, the to-be-cooled part of the compressor 4 is cooled by the compressor cooling flow path 41, the first cooling pipeline 1 and the second cooling pipeline 2 are controlled to be communicated with the compressor cooling flow path 41, respectively, and the refrigerant in the first cooling pipeline 1 and the second cooling pipeline 2 can enter the compressor cooling flow path 41, respectively.

[0036] Specifically, the parts to be cooled of the compressor 4 include, but are not limited to, the compressor motor and the like.

[0037] In the compressor cooling system of the present embodiment, referring to Figure 2 , the first cooling pipeline 1 comprises a first throttling device 11, which is located between the condenser 3 and the compressor cooling flow path 41, and is used to adjust the refrigerant flow in the first cooling pipeline 1.

[0038] In some embodiments, the first throttling device 11 is an electronic expansion valve, which plays a role of throttling and adjusting the flow. On the one hand, the high-temperature liquid refrigerant taken from the condenser 3 becomes low-temperature liquid refrigerant after being throttled by the first throttling device 11, and enters the internal flow passage of the compressor for heat exchange and cooling, thereby achieving better cooling effect. On the other hand, when the operating power of the compressor changes, the heat generated also changes. By adjusting the opening of the first throttling device 11, the refrigerant flow can be controlled to change, and the refrigerant flow is adjusted according to the control temperature to maintain the stability of the temperature. In addition, the first throttling device 11 can be used to control the on-off of the first cooling pipeline 1. When the first throttling device 11 is opened, the first cooling pipeline 1 is connected to the compressor cooling flow path 41.

[0039] In the compressor cooling system of the present embodiment, referring to Figure 3 , the second cooling pipeline 2 comprises a second throttling device 21, which is located between the refrigerant outlet of the compressor 4 and the compressor cooling flow path 41, and is used to adjust the refrigerant flow in the second cooling pipeline 2.

[0040] In some embodiments, the second throttling device 21 is an electronic expansion valve. On the one hand, the gaseous refrigerant discharged from the refrigerant outlet of the compressor 4 is depressurized and cooled by the electronic expansion valve, thereby increasing the temperature difference between the gaseous refrigerant and the compressor, and ensuring the cooling effect of the second cooling pipeline 2. On the other hand, when the operating power of the compressor changes, the heat generated also changes. By adjusting the opening of the second throttling device 21, the refrigerant flow can be controlled to change, and the refrigerant flow is adjusted according to the control temperature to maintain the stability of the temperature. In addition, the second throttling device 21 can be used to control the on-off of the second cooling pipeline 2. When the second throttling device 21 is opened, the second cooling pipeline 2 is connected to the compressor cooling flow path 41.

[0041] Specifically, the compressor 4 is supplied with liquid refrigerant from the condenser 3 after the first throttling device 11, and the motor is cooled by the latent heat of liquid phase change. This cooling method can effectively control the temperature of the compressor when operating in a high heat condition. The compressor is supplied with gas refrigerant from the compressor 4 after the second throttling device 21, and the motor is cooled by the sensible heat of the gas, effectively avoiding condensation due to low cooling temperature, preventing short circuit and explosion of components.

[0042] In the compressor cooling system of the present embodiment, referring to Figure 1 The detection device 5 includes a temperature detector for detecting the current temperature of the compressor 4, wherein the temperature detector includes a plurality of

[0043] Specifically, the temperature detector is connected to the controller mainboard through an information transmission mechanism and feeds back signals to the mainboard. Further, the mainboard calculates the adjustment opening of the first throttling device 11 or the second throttling device 21 according to the feedback temperature and the set value of the temperature according to the original control logic, and sends the adjustment signal to the first throttling device 11 or the second throttling device 21. The first throttling device 11 or the second throttling device 21 performs adjustment action to realize adjustment of the refrigerant flow.

[0044] In the compressor cooling system of the present embodiment, referring to Figure 1 The plurality of temperature detectors include: a first temperature sensing bag 51 located at the inlet of the compressor cooling flow path 41 to detect the current temperature at the inlet of the compressor cooling flow path 41; a second temperature sensing bag 52 located in the compressor cooling flow path 41 to detect the current temperature inside the compressor cooling flow path 41; and a third temperature sensing bag 53 located at the outlet of the compressor cooling flow path 41 to detect the current temperature at the outlet of the compressor cooling flow path 41.

[0045] Specifically, by setting multiple temperature sensing bags to detect the inlet temperature, intermediate temperature and outlet temperature of the compressor respectively, the multiple temperature sensing bags are connected to the controller mainboard through an information transmission mechanism, and the highest temperature value is selected as the current temperature, thereby ensuring the accuracy of temperature detection.

[0046] In the compressor cooling system of the present embodiment, referring to Figure 1 The outlet of the first cooling pipe 1 is in communication with the evaporator 7; and the outlet of the second cooling pipe 2 is in communication with the evaporator 7. Specifically, after the refrigerant in the first cooling pipe 1 or the second cooling pipe 2 completes the cooling of the compressor, it enters the evaporator 7 and returns to the refrigeration cycle.

[0047] In the compressor cooling system of the present embodiment, referring to Figure 1A third throttling device 8 is arranged between the condenser 3 and the evaporator 7 to throttle the refrigerant entering the evaporator 7.

[0048] The third throttling device 8 is arranged to throttle the refrigerant entering the evaporator 7.

[0049] Embodiment 2

[0050] A compressor, comprising the compressor cooling system as described above.

[0051] In the compressor of the embodiment, according to the current temperature of the compressor 4, the first cooling pipeline 1 or the second cooling pipeline 2 is controlled to be opened or closed, or the flow rate in the first cooling pipeline 1 or the second cooling pipeline 2 is regulated according to the current temperature, so that the compressor is cooled by using refrigerants in different states, the temperature of the compressor is prevented from being too high to protect the compressor, and the temperature of the compressor is prevented from being too low to cause condensation on the surface, the stability of the operation of the compressor is improved, the problems of condensation and over-temperature caused by refrigerant cooling are solved, and the technical problem of poor cooling efficiency of the compressor cooling system in the related art is solved.

[0052] Specifically, the compressor 4 is supplied with liquid refrigerant after the first throttling device 11 in the cooling circuit from the condenser 3, and the motor is cooled by the latent heat of liquid phase change. This cooling method can effectively control the temperature of the compressor when the compressor operates in a high heat generating condition, and the temperature of the compressor will not be too high. The compressor is supplied with gas refrigerant after the second throttling device 21 in the cooling circuit from the discharge position of the compressor 4, and the motor is cooled by the sensible heat of the gas, which effectively avoids condensation caused by too low cooling temperature, and prevents short circuit and explosion of components.

[0053] Further, the highest working temperature of the components of the compressor is 65℃, and in a high temperature and high humidity environment, the dew point temperature is about 25-30℃, so the control range of the temperature of the compressor is generally 35-45℃, which can avoid high working temperature of the compressor and prevent condensation, and improve the reliability of operation. By using the compressor cooling system as described above, the working temperature of the compressor can be maintained at 35-45℃.

[0054] Embodiment 3

[0055] A water chiller, comprising the compressor cooling system as described above.

[0056] In the water chiller in the embodiment, according to the current temperature of the compressor 4, the first cooling pipeline 1 or the second cooling pipeline 2 is controlled to be opened or closed, or the flow rate in the first cooling pipeline 1 or the second cooling pipeline 2 is regulated according to the current temperature, so that the compressor cooling is performed by using different state refrigerants, the temperature of the compressor is prevented from being too high to protect the compressor, and the temperature is prevented from being too low to cause condensation on the surface, the stability of the operation of the compressor is improved, the problems of condensation and over-temperature caused by the refrigerant cooling are solved, and the technical problem of poor cooling efficiency of the compressor cooling system in the related art is solved.

[0057] Embodiment 4

[0058] In the control method in the embodiment, the control method is applicable to the compressor cooling system described above, and the control method comprises the following steps.

[0059] The current temperature To of the compressor 4 is obtained, and the flow rate of the refrigerant entering the first cooling pipeline 1 and the second cooling pipeline 2 is adjusted according to the current temperature To of the compressor 4 to cool the part to be cooled of the compressor 4.

[0060] In the water chiller in the embodiment, according to the current temperature To of the compressor 4, the first cooling pipeline 1 or the second cooling pipeline 2 is controlled to be opened or closed, or the flow rate in the first cooling pipeline 1 or the second cooling pipeline 2 is regulated according to the current temperature, so that the compressor cooling is performed by using different state refrigerants, the temperature of the compressor is prevented from being too high to protect the compressor, and the temperature is prevented from being too low to cause condensation on the surface, the stability of the operation of the compressor is improved, the problems of condensation and over-temperature caused by the refrigerant cooling are solved, and the technical problem of poor cooling efficiency of the compressor cooling system in the related art is solved.

[0061] Specifically, the liquid refrigerant after the first throttling device 11 is taken from the condenser 3 to supply the cooling circuit to the compressor 4, and the motor cooling is performed by the latent heat of liquid phase change. This cooling mode can effectively control the temperature of the compressor to be not too high when the compressor operates in a large heat generating condition. The gaseous refrigerant after the second throttling device 21 is taken from the compressor discharge position to supply the cooling circuit to the compressor, and the motor cooling is performed by the sensible heat of the gas, which effectively avoids the condensation caused by the too low cooling temperature and prevents the short circuit and explosion of the components.

[0062] In the control method in the embodiment, referring to Figure 1 , the flow rate of the refrigerant entering the first cooling pipeline 1 and the second cooling pipeline 2 is adjusted according to the current temperature of the compressor 4, which comprises the following steps.

[0063] The current temperature To of the compressor 4 is compared with the preset temperature Ts; if To>Ts, the first cooling pipeline 1 is controlled to be opened and the second cooling pipeline 2 is controlled to be closed; if ToTs, the second cooling pipeline 2 is controlled to be opened and the first cooling pipeline 1 is controlled to be closed.

[0064] When the current temperature To is higher than the preset temperature Ts, the first cooling pipeline 1 is controlled to be opened, and the opening degree is calculated by the capacity adjustment coefficient to make the current cooling efficiency optimal. When the current temperature To is lower than the preset temperature Ts, the second cooling pipeline 2 is controlled to be opened, so that the current temperature of the compressor can be maintained, which can effectively prevent the compressor 4 from running at low temperature due to excessive cooling, and the surface temperature is too low to cause condensation. The opening degree is calculated by the capacity adjustment coefficient to make the current cooling efficiency optimal.

[0065] In the control method of the embodiment, referring to Figure 1 , the control method comprises:

[0066] The current temperature To of the compressor 4 is compared with the preset temperature Ts; if To>Ts, the first cooling pipeline 1 is controlled to be opened and the second cooling pipeline 2 is controlled to be closed; if ToTs, the second cooling pipeline 2 is controlled to be opened and the first cooling pipeline 1 is controlled to be closed.

[0067] Specifically, the highest temperature among the multiple temperatures measured by the multiple temperature sensing bags is selected as the current temperature To of the compressor 4.

[0068] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0069] Alternatively, the specific examples in the embodiment can refer to the examples described in the above-described embodiments, and the embodiment will not be described here.

[0070] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0071] In the above-described embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0072] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A compressor cooling system characterized by, The application relates to a compressor cooling system for a water chiller, comprising: a first cooling pipeline (1), an inlet of which is communicated with a condenser (3), and which is used for cooling a part to be cooled of a compressor (4); a second cooling pipeline (2), an inlet of which is communicated with a refrigerant outlet of the compressor (4), and which is used for cooling the part to be cooled of the compressor (4); a detection device (5) for detecting a current temperature of the compressor (4); a controller, which is signal-connected with the detection device (5), and which is used for adjusting a refrigerant flow in the first cooling pipeline (1) and the second cooling pipeline (2) according to the current temperature of the compressor (4).

2. The compressor cooling system of claim 1, wherein, The part to be cooled of the compressor (4) is provided with a compressor cooling flow path (41), which is used for cooling the part to be cooled of the compressor (4), and which is communicated with the first cooling pipeline (1) and the second cooling pipeline (2) respectively.

3. The compressor cooling system of claim 2, wherein, The first cooling pipeline (1) comprises a first throttling device (11), which is located between the condenser (3) and the compressor cooling flow path (41), and which is used for adjusting the refrigerant flow in the first cooling pipeline (1).

4. The compressor cooling system of claim 2, wherein, The second cooling pipeline (2) comprises a second throttling device (21), which is located between the refrigerant outlet of the compressor (4) and the compressor cooling flow path (41), and which is used for adjusting the refrigerant flow in the second cooling pipeline (2).

5. The compressor cooling system of claim 2, wherein, The detection device (5) comprises a temperature detector, which is used for detecting the current temperature of the compressor (4), wherein the temperature detector comprises a plurality of.

6. The compressor cooling system of claim 5, wherein, The plurality of temperature detectors comprises: a first temperature sensing bag (51), which is located at an inlet of the compressor cooling flow path (41), and which is used for detecting a current temperature at the inlet of the compressor cooling flow path (41); a second temperature sensing bag (52), which is located in the compressor cooling flow path (41), and which is used for detecting a current temperature inside the compressor cooling flow path (41); a third temperature sensing bag (53), which is located at an outlet of the compressor cooling flow path (41), and which is used for detecting a current temperature at the outlet of the compressor cooling flow path (41).

7. The compressor cooling system of claim 2, wherein, An outlet of the first cooling pipeline (1) is communicated with an evaporator (7); and / or, An outlet of the second cooling pipeline (2) is communicated with the evaporator (7).

8. The compressor cooling system of claim 7, wherein, A third throttling device (8) is arranged between the condenser (3) and the evaporator (7), and is used for throttling refrigerant about to enter the evaporator (7).

9. A compressor characterized by, The compressor comprises the compressor cooling system according to any one of claims 1 to 8.

10. A water chiller, characterized by, The water chiller comprises the compressor cooling system according to any one of claims 1 to 8.

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