CN113803910A - Motor cooling system and refrigerating system of air suspension compressor - Google Patents
Motor cooling system and refrigerating system of air suspension compressor Download PDFInfo
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- CN113803910A CN113803910A CN202010474372.3A CN202010474372A CN113803910A CN 113803910 A CN113803910 A CN 113803910A CN 202010474372 A CN202010474372 A CN 202010474372A CN 113803910 A CN113803910 A CN 113803910A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
Abstract
The application relates to the technical field of refrigeration, discloses a motor cooling system of gas suspension compressor, includes: a gas bearing gas supply unit including a gas supply tank including a refrigerant inlet, a gas outlet, and a liquid refrigerant outlet; the refrigerant inlet is connected to the refrigerant in the refrigeration system where the compressor is located; the gas outlet is communicated with a gas supply port of a gas bearing of the compressor; and the two ports of the first pipeline are respectively communicated with the liquid refrigerant outlet of the air supply tank and the motor cooling liquid supply port of the compressor. The embodiment of the disclosure realizes that the motor cooling liquid of the air suspension compressor is provided by the air supply tank in the air bearing air supply unit, and the consumption of the refrigerant required in the air supply tank is increased, thereby increasing the flow of the liquid supply pump, reducing the start-stop frequency and prolonging the service life. Meanwhile, a cooling liquid supply pipeline is simplified, the loss of the refrigerant is reduced, and the cost is reduced. The present application further discloses a refrigeration system.
Description
Technical Field
The application relates to the technical field of refrigeration, for example, relates to a motor cooling system and a refrigeration system of a gas suspension compressor.
Background
In a refrigeration system using a gas suspension compressor (for example, a gas suspension centrifugal compressor), a gas bearing is often used for the compressor to supply gas: a liquid supply pump is utilized to pump the refrigerant in a refrigeration cycle pipeline of the refrigeration system into the gas supply tank through the pipeline, the refrigerant is heated and evaporated into high-pressure gaseous refrigerant in the gas supply tank through high temperature, and the high-pressure gaseous refrigerant is directly sent into a gas bearing gap of the compressor through the pipeline after being discharged from the gas supply tank to play a role in supporting the rotor. Wherein, the pressurization principle of air feed jar does: the electric energy controls the heating pipe in the air supply tank to heat up, liquid refrigerant in the air supply tank is heated, the refrigerant is evaporated to be high-pressure gas, and the high-pressure gas is discharged from the top of the air supply tank and is sent to a gas bearing gap of the compressor through a pipeline.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: because the gas required by the gas bearing of the gas suspension compressor is limited, the refrigerant is not required to be pumped into the gas supply tank continuously, the liquid supply pump is started and stopped frequently, and the service life is shortened.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a motor cooling system and a refrigerating system of a gas suspension compressor, and aims to solve the problems that the gas required by a gas bearing of the existing gas suspension compressor is limited, a refrigerant is not required to be continuously pumped into a gas supply tank, a liquid supply pump is started and stopped frequently, and the service life is shortened.
In some embodiments, the motor cooling system of the air suspension compressor comprises:
a gas bearing gas supply unit including a gas supply tank including a refrigerant inlet, a gas outlet, and a liquid refrigerant outlet; the refrigerant inlet is connected to the refrigerant in the refrigeration system where the compressor is located; the gas outlet is communicated with a gas supply port of a gas bearing of the compressor;
and the two ports of the first pipeline are respectively communicated with the liquid refrigerant outlet of the air supply tank and the motor cooling liquid supply port of the compressor.
In some embodiments, the refrigeration system comprises the motor cooling system of the air suspension compressor.
The motor cooling system and the refrigerating system of the air suspension compressor provided by the embodiment of the disclosure can realize the following technical effects:
in the motor cooling system of the air suspension compressor according to the embodiment of the present disclosure, a liquid refrigerant outlet is newly added to the air supply tank, and the liquid refrigerant in the air supply tank is supplied to the motor of the air suspension compressor as the motor cooling liquid through the first pipeline. The motor cooling liquid of the gas suspension compressor is supplied by the gas supply tank in the gas bearing gas supply unit, and the consumption of the refrigerant required in the gas supply tank is increased, so that the flow of the liquid supply pump is increased, the starting and stopping frequency is reduced, and the service life is prolonged. Meanwhile, a cooling liquid supply pipeline is simplified, the loss of the refrigerant is reduced, and the cost is reduced.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a refrigeration system including a motor cooling system of an air-suspending compressor according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another refrigeration system including a motor cooling system of an air-suspending compressor according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another refrigeration system including a motor cooling system of an air-suspending compressor according to an embodiment of the present disclosure;
reference numerals:
110. an air supply tank; 111. a gas outlet; 112. a liquid refrigerant outlet; 113. a liquid refrigerant inlet; 114. a gaseous refrigerant inlet; 120. a second pipeline; 121. a pumping device; 122. a first filtering device; 123. a first check valve; 130. a third pipeline; 131. a second flow control device; 132. a second filtering device; 133. a second one-way valve; 141. a second pressure monitoring device; 142. a second temperature monitoring device; 143. a second flow monitoring device; 144. a third pressure monitoring device; 145. a third temperature monitoring device; 146. a third flow monitoring device; 200. a first pipeline; 210. a first flow control device; 220. a liquid supply pump; 230. a first pressure monitoring device; 240. a first temperature monitoring device; 250. a first flow monitoring device; 300. a refrigeration system; 310. a compressor; 311. an exhaust port; 320. a condenser; 330. a throttling device; 340. an evaporator.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
Referring to fig. 1 to 3, an embodiment of the present disclosure provides a motor cooling system for an air suspension compressor, which includes a gas bearing gas supply unit and a first pipeline 200. The gas bearing gas supply unit includes a gas supply tank 110, the gas supply tank 110 including a refrigerant inlet, a gas outlet 111, and a liquid refrigerant outlet 112; the refrigerant inlet is coupled to refrigerant in the refrigeration system in which the compressor 310 is located. Both ends of the first pipe 200 communicate with the liquid refrigerant outlet 112 of the gas supply tank 110 and the motor coolant supply port of the compressor 310, respectively.
In the motor cooling system of the aero-levitation compressor according to the embodiment of the present disclosure, a liquid refrigerant outlet 112 is additionally provided to the air supply tank 110, and the liquid refrigerant in the air supply tank 110 is supplied to the motor of the aero-levitation compressor as the motor coolant through the first pipe 200. The motor cooling liquid of the air suspension compressor is supplied by the air supply tank 110 in the air bearing air supply unit, the consumption of the refrigerant required in the air supply tank 110 is increased, the flow rate (namely, supply load) of the liquid supply pump 120 is increased, the starting and stopping frequency is reduced, and the service life is prolonged. And further, the stability of the gas bearing gas supply unit and the stability of the refrigerating system are improved. Meanwhile, a cooling liquid supply pipeline is simplified, the loss of the refrigerant is reduced, and the cost is reduced.
In the embodiment of the present disclosure, the compressor 310 is a gas suspension compressor using a gas bearing, and specifically, a gas suspension centrifugal compressor is used. The type of the gas bearing is not limited.
In some embodiments, as shown in fig. 1, the motor cooling system further includes a first flow control device 210 and a liquid supply pump 220, the first flow control device 210 is disposed on the first pipeline 200; and/or, the fluid supply pump 220 is connected to the first pipeline 200 to provide power for the first pipeline 200.
In this embodiment, the first flow control device 210 may throttle and cool the liquid refrigerant in the first pipeline 200 to achieve a better cooling effect. A liquid feed pump 220 is provided on the first pipe 200 to ensure that the liquid refrigerant in the gas supply tank 110 is supplied to the motor of the air suspension compressor. The specific pump type used for the liquid supply pump 220 is not limited as long as the pump can supply a fluid.
Optionally, the first flow control device 210 is an electronic expansion valve. The liquid refrigerant in the first pipeline 200 is throttled and cooled.
In the embodiment of the present disclosure, in the gas bearing gas supply unit, the gas supply tank 110 is added with a liquid refrigerant outlet 112 on the basis of the existing refrigerant inlet and gas outlet 111 to achieve the purpose of supplying the cooling liquid to the motor of the compressor 310. In some embodiments, a liquid refrigerant outlet 112 is provided at the bottom of the gas supply tank 11. The cooling liquid supply of the motor can be ensured without adding elements such as a liquid level sensor and the like, and the energy consumption is reduced.
In some embodiments, the motor cooling system further comprises a first fluid monitoring device disposed on the pipe at the motor coolant supply of the compressor 310. That is, in the embodiment of the present disclosure, the first fluid monitoring device is used to monitor the parameter of the refrigerant entering the motor of the compressor 310, so as to control the opening degree of the first flow control device 210 and/or the pumping power of the liquid feed pump 220, and so as to supply the motor of the compressor 310 with the cooling liquid with a suitable temperature, pressure, flow rate, and so on.
Alternatively, as shown in fig. 2, the first fluid monitoring device includes a first pressure monitoring device 230, a first temperature monitoring device 240 and a first flow monitoring device 250, which are all disposed on the pipeline at the motor coolant supply port of the compressor 310. The pressure, temperature and flow of refrigerant into the motor of the compressor 310 are monitored.
In the embodiment of the present disclosure, the refrigerant inlet of the gas supply tank 110 is connected to the refrigerant in the refrigeration system where the compressor 310 is located. In the initial stage of starting the refrigeration system, the pressure of the gaseous refrigerant in the pipeline of the exhaust port of the compressor is unstable, so that the operation of the gas suspension compressor is unstable. In view of this, in the initial stage of the refrigeration system start-up (start-up includes initial start-up or restart), if the gaseous refrigerant is directly introduced into the line of the discharge port of the compressor, the pressure of the supplied gaseous refrigerant may be unstable, which may affect the operation of the compressor.
In some embodiments, as shown in fig. 1, the refrigerant inlet of the gas supply tank 110 comprises a liquid refrigerant inlet 113; then, the gas bearing gas supply unit further includes a second pipe 120 and a pumping device 121, and two ports of the second pipe 120 are respectively communicated with the liquid refrigerant inlet 113 of the gas supply tank 110 and a condenser 320 in the refrigeration system where the compressor 310 is located. The pumping device 121 is connected to the second pipeline 120 to provide power to the second pipeline 120. During the operation of the refrigeration system, the high-temperature and high-pressure liquid refrigerant discharged from the condenser 320 is fed into the gas supply tank 110, the liquid refrigerant is heated and evaporated into a gaseous refrigerant in the gas supply tank 110, and then the gaseous refrigerant is discharged from the gas outlet 111 of the gas supply tank 110, so that the gas refrigerant with stable pressure can be provided for the gas bearing of the compressor 310, and the stability of the compressor in the initial operation stage can be ensured. Particularly, in the initial stage of the starting of the refrigeration system, the gas refrigerant with stable pressure can be supplied to the gas bearing of the compressor 310, and the stability of the compressor in the initial stage of the operation can be ensured. Meanwhile, the cooling agent can be provided for the motor of the compressor, and the cooling of the motor is guaranteed.
In this embodiment, the pumping device 121 may adopt a liquid supply pump or an air supply pump, but is not limited to this, and may meet the requirement of pumping liquid refrigerant. Alternatively, the pumping device 121 employs a compressor.
Optionally, as shown in fig. 2, the gas bearing gas supply unit further includes a first filtering device 122, and the first filtering device 122 is disposed on the second pipeline 120 between the condenser 320 and the pump 131 to filter the refrigerant in the second pipeline 120. The first filtering device 122 may be a conventional filter, and may filter out impurities in the liquid refrigerant.
Optionally, as shown in fig. 2, the gas bearing gas supply unit further includes a first check valve 123 disposed on the second pipeline 120. Ensuring no counter flow. Optionally, a first one-way valve 123 is provided on the second line 120 between the pumping device 121 and the gas supply tank 110.
Optionally, the position of the liquid refrigerant outlet 112 is lower than the position of the liquid refrigerant inlet 113. The supply of liquid refrigerant is ensured.
When the refrigeration system is in a steady operation state, the pressure of the gaseous refrigerant in the line of the discharge port 311 of the compressor 310 is in a steady state, and at this time, the gaseous refrigerant in the line of the discharge port 311 of the compressor 310 can be directly introduced into the gas supply tank 110, reducing the energy consumption of the gas supply tank 110. As shown in fig. 3, in some embodiments, the refrigerant inlet of the gas supply tank 110 further comprises a gaseous refrigerant inlet 114; then, the gas bearing gas supply unit further includes a third pipeline 130 and a second flow control device 131, two ports of the third pipeline 130 are respectively communicated with the gaseous refrigerant inlet 114 of the gas supply tank 110 and the pipeline at the gas outlet 311 of the compressor 310, and the second flow control device 131 is disposed on the third pipeline 130. Whether or not to introduce the gaseous refrigerant discharged from the discharge port 311 of the compressor 310 into the gas supply tank 110 is controlled by controlling the opening or closing of the second flow rate control device 131.
Optionally, the second flow control device 131 employs a control valve, such as an electric ball valve.
Optionally, as shown in fig. 3, the gas bearing gas supply unit further includes a second filtering device 132 disposed on the third pipeline 130 for filtering the refrigerant in the third pipeline 130. The second filtering device 132 may employ a cyclone centrifugal device.
Optionally, as shown in fig. 3, the gas bearing gas supply unit further includes a second check valve 133 disposed on the third pipeline 130. The gaseous refrigerant in the third pipeline 130 is prevented from flowing backward, so that the gaseous refrigerant discharged from the discharge port 311 of the compressor 310 is ensured to flow toward the gas supply tank 110, and the backflow of the gaseous refrigerant in the gas supply tank 110 is avoided.
That is, in the gas bearing gas supply unit according to the embodiment of the present disclosure, the refrigerant in the gas supply tank 110 may be supplied in the following two ways: first, the supply tank 110 is supplied with liquid refrigerant by the condenser 320 throughout the operation of the refrigeration system. Second, in the initial stage of the start-up of the refrigeration system, the condenser 320 supplies the liquid refrigerant to the air supply tank 110; during a stable operation of the refrigeration system, a gaseous refrigerant is supplied from the discharge port of the compressor 310 to the gas supply tank 110 while a liquid refrigerant is supplied from the condenser 320 to the gas supply tank 110. In the embodiment of the present disclosure, the refrigerant supply manner of the gas supply tank 110 in the gas bearing gas supply unit may be determined according to actual conditions. In the second supply method, the pumping flow rate of the pumping device 121 and the opening or closing of the second flow rate control device 131 may be controlled by the controller.
Alternatively, for the second supply mode, when the controller determines that the refrigeration system is started, the controller controls the starting of the pumping device 121 and counts the time at the same time; when the timing reaches a first set time, controlling a gas suspension compressor of the refrigerating system to be started; and when the timing reaches a second set time, controlling the second flow control device 131 to be started. The second supply mode is realized. The pumping rate of the pumping device 121 and the opening degree of the second flow control device 131 may be adjusted and determined according to actual conditions.
In this embodiment, the controller determines the start-up determining time point of the refrigeration system according to the start-up time point of the air suspension compressor in the actual control process, which is slightly advanced, so as to ensure that the air supply tank 110 can provide stable high-pressure air for the air bearing of the air suspension compressor, thereby ensuring the stable operation of the air suspension compressor. That is, the first set time is determined by a time required for the gas supply tank 110 to be able to supply the gaseous refrigerant of a stable pressure in actual use. Optionally, the first set time is 5s to 15 s. Optionally, the first set time is 5s to 8 s.
In this embodiment, the second setting time is set according to the actual time required for the refrigeration system to enter the stable operation from the start. Optionally, the second set time is 60s to 180 s. Optionally, the second set time is 100s to 120 s.
In some embodiments, as shown in fig. 2, the gas bearing gas supply unit further includes a fluid monitoring device disposed on the gas supply tank 110 and on a pipeline at the gas supply port of the gas bearing of the compressor 310, respectively. That is, in the disclosed embodiment, the fluid monitoring device is used to monitor the parameters of the refrigerant on each line segment in the gas bearing gas supply unit in order to control the heating power of the gas supply tank 110.
In some embodiments, the fluid monitoring devices may be further disposed on a pipeline at a refrigerant inlet of the gas supply tank 110 and a pipeline at a gas outlet of the gas supply tank 110, respectively. Parameters such as heating power of the gas supply tank 110 are determined by monitoring parameters of the refrigerant entering the gas supply tank 110 and parameters of the gaseous refrigerant exiting the gas supply tank 110.
Optionally, the fluid monitoring device comprises a pressure monitoring deviceThe device comprises a temperature monitoring device, a flow monitoring device and the like, and one or more of the devices can be selected according to actual needs. After the type of the refrigerant is determined, the pressure-enthalpy diagram of the refrigerant is inquired according to the current pressure value P, and the saturated steam temperature T of the saturated steam under the current pressure can be obtained0When the current temperature T obtained by monitoring is more than the saturated steam temperature T0While the gaseous refrigerant is in a (superheated) saturated state; when the current temperature T obtained by monitoring is less than the saturated steam temperature T0When the temperature is not saturated, the gaseous refrigerant is in an unsaturated state according to the current temperature T and the saturated steam temperature T0The difference may be used to determine parameters such as heating power of the gas supply tank 110.
Alternatively, as shown in fig. 1, the fluid monitoring device, including the second pressure monitoring device 141, the second temperature monitoring device 142 and the second flow monitoring device 143, is disposed on the gas supply tank 110. Various parameters such as pressure, temperature and flow rate in the supply tank 110 are monitored.
Optionally, as shown in fig. 2, the fluid monitoring device further includes a third pressure monitoring device 144, a third temperature monitoring device 145 and a third flow monitoring device 146, which are disposed on the pipeline at the gas supply port of the gas bearing of the compressor 310. Various parameters of the gaseous refrigerant entering the gas bearings of the compressor 310 are monitored. The process parameters of the equipment such as the gas supply tank 110 can be controlled by the monitoring data of the fluid monitoring device.
Optionally, the fluid monitoring device further includes a fourth pressure monitoring device (not shown), a third temperature monitoring device (not shown), and a third flow monitoring device (not shown), which are disposed on the pipeline at the refrigerant inlet of the gas supply tank 110. Various parameters of the refrigerant entering the supply tank 110 are monitored. When the refrigerant inlet of the gas supply tank 110 includes a liquid refrigerant inlet 113 and a gaseous refrigerant inlet 114, a fourth pressure monitoring device (not shown), a third temperature monitoring device (not shown) and a third flow rate monitoring device are respectively arranged on the pipelines at the liquid refrigerant inlet and the gaseous refrigerant inlet 114.
Optionally, the fluid monitoring device further comprises a fifth pressure monitoring device (not shown), a fifth temperature monitoring device (not shown) and a fifth flow monitoring device (not shown) disposed on the pipeline at the gas outlet 111 of the gas supply tank 110. Various parameters of the gas refrigerant discharged after the heating and pressurizing treatment by the gas supply tank 110 are monitored.
As shown in fig. 1 to 3, an embodiment of the present disclosure provides a refrigeration system 20 including the aforementioned motor cooling system of the air suspension compressor.
The refrigeration system of the embodiment of the present disclosure includes a compressor 310, a condenser 320, a throttling device 330, and an evaporator 340, which are connected in sequence, and are connected by a pipeline to form a refrigeration cycle loop. The pipeline of the refrigeration circulation loop is also provided with structural components such as a one-way valve, a flow control device (electric ball valve), a filter, a fluid monitoring device and the like, and the arrangement positions can be referred to as those shown in fig. 3, and are not described again.
In the refrigeration system of the embodiment of the disclosure, the refrigerant in the gas supply tank 110 in the gas bearing gas supply unit is used as a cooling liquid source, and the required amount of the liquid refrigerant in the gas supply tank 110 is increased, so that the flow rate (i.e., the supply load) of the pumping device 121 is increased, the start-stop frequency is reduced, the service life is prolonged, and the stability of the gas bearing gas supply unit and the stability of the refrigeration system are further improved. Meanwhile, a cooling liquid supply pipeline is simplified, the loss of the refrigerant is reduced, and the cost is reduced.
In the embodiment of the present disclosure, the refrigeration system may be a chiller system using an air suspension compressor, or other air conditioning systems using an air suspension compressor.
In the embodiment of the disclosure, as shown in fig. 1 to fig. 3, for convenience and intuition, the vapor-make-up and enthalpy-increasing pipeline of the compressor is omitted.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A motor cooling system for a gas suspension compressor, comprising:
a gas bearing gas supply unit comprising a gas supply tank comprising a refrigerant inlet, a gas outlet, and a liquid refrigerant outlet; the refrigerant inlet is connected to a refrigerant in a refrigeration system where the compressor is located; the gas outlet is communicated with a gas supply port of a gas bearing of the compressor;
and two ports of the first pipeline are respectively communicated with the liquid refrigerant outlet of the air supply tank and the motor cooling liquid supply port of the compressor.
2. The electric machine cooling system of claim 1, further comprising:
the first flow control device is arranged on the first pipeline; and/or the presence of a gas in the gas,
and the liquid supply pump is connected into the first pipeline and provides power for the first pipeline.
3. The motor cooling system of claim 2, wherein the first flow control device is an electronic expansion valve.
4. The motor cooling system of claim 1, wherein the liquid refrigerant outlet is disposed at a bottom of the gas supply tank.
5. The motor cooling system of claim 1, further comprising,
and the first fluid monitoring device is arranged on a pipeline at a motor cooling liquid supply port of the compressor.
6. The electric machine cooling system according to any one of claims 1 to 5, wherein the refrigerant inlet comprises a liquid refrigerant inlet; the gas bearing gas supply unit further comprises:
and two ports of the second pipeline are respectively communicated with a liquid refrigerant inlet of the air supply tank and a condenser in the refrigeration system where the compressor is located.
7. The motor cooling system of claim 6, wherein the gas bearing gas supply unit further comprises:
and the pumping device is connected into the second pipeline and provides power for the second pipeline.
8. The motor cooling system of claim 7, wherein the pumping device comprises a compressor.
9. The motor cooling system of claim 6, wherein the refrigerant inlet further comprises a gaseous refrigerant inlet; the gas bearing gas supply unit further comprises:
a third pipeline, two ports of which are respectively communicated with the gaseous refrigerant inlet of the gas supply tank and the pipeline at the exhaust port of the compressor;
and the second flow control device is arranged on the third pipeline.
10. Refrigeration system, characterized in that it comprises a motor cooling system of a gas suspension compressor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010474372.3A CN113803910A (en) | 2020-05-29 | 2020-05-29 | Motor cooling system and refrigerating system of air suspension compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010474372.3A CN113803910A (en) | 2020-05-29 | 2020-05-29 | Motor cooling system and refrigerating system of air suspension compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11781790B2 (en) | 2020-06-11 | 2023-10-10 | Beijing Baidu Netcom Science And Technology Co., Ltd. | Refrigerating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11781790B2 (en) | 2020-06-11 | 2023-10-10 | Beijing Baidu Netcom Science And Technology Co., Ltd. | Refrigerating system |
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