CN213066639U - Gas bearing gas supply system for compressor and refrigeration system - Google Patents
Gas bearing gas supply system for compressor and refrigeration system Download PDFInfo
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- CN213066639U CN213066639U CN202020822097.5U CN202020822097U CN213066639U CN 213066639 U CN213066639 U CN 213066639U CN 202020822097 U CN202020822097 U CN 202020822097U CN 213066639 U CN213066639 U CN 213066639U
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 44
- 239000003507 refrigerant Substances 0.000 claims abstract description 113
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 238000012806 monitoring device Methods 0.000 claims description 32
- 238000001914 filtration Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 13
- 239000000725 suspension Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The application relates to the technical field of refrigeration, discloses a gas supply system of gas bearing for compressor, includes: a gas supply tank including a refrigerant inlet and a gas outlet; the refrigerant inlet is connected with a refrigerant in a refrigeration system where the compressor is located; the two ports of the first pipeline are respectively communicated with a gas outlet of the gas supply tank and a gas supply port of a gas bearing of the compressor; the liquid removing device is connected in series or in parallel to the first pipeline. In the embodiment of the disclosure, before the gaseous refrigerant discharged from the gas supply tank enters the gas bearing, the gaseous refrigerant can enter the liquid removal device, and droplets in the gaseous refrigerant are removed by the liquid removal device, so that the gaseous refrigerant sent to the gas bearing of the compressor is saturated gas and does not contain droplets, and the stability of the operation of the compressor is ensured. The present application further discloses a refrigeration system.
Description
Technical Field
The present invention relates to the field of refrigeration technology, and for example, to an air supply system for a gas bearing for a compressor and a refrigeration system.
Background
In a refrigeration system using a compressor having a gas bearing (for example, a gas suspension centrifugal compressor), a gas bearing is often used for the compressor to supply gas: the refrigerant in a refrigeration cycle pipeline in the refrigeration system is extracted and sent to the air supply tank through the pipeline, the refrigerant is heated and evaporated into high-pressure gaseous refrigerant in the air supply tank through high temperature, and the high-pressure gaseous refrigerant is directly sent to a gas bearing gap of the compressor through the pipeline after being discharged from the air supply tank, so that the rotor is supported. 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 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: in the air supply tank, the gaseous refrigerant rises after being evaporated and is discharged from the top of the air supply tank, so that the gaseous refrigerant collides with the liquid refrigerant which just flows into the air supply tank during the rising process, and droplets are easily entrained. When the bearing supplies gas and is internally doped with liquid drops, the normal operation of a bearing gas film is disturbed, the operation of a rotor and the bearing is influenced, the bearing is damaged, and even a shaft seizing accident is caused if the bearing is serious.
SUMMERY OF THE UTILITY MODEL
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 an air supply system and a refrigeration system of a gas bearing for a compressor, which aim to solve the problem that small liquid drops are easily mixed in a gaseous refrigerant sent into the gas bearing of the compressor.
In some embodiments, the gas bearing supply system for a compressor comprises:
a gas supply tank including a refrigerant inlet and a gas outlet; the refrigerant inlet is connected with a refrigerant in a refrigeration system where the compressor is located;
the two ports of the first pipeline are respectively communicated with a gas outlet of the gas supply tank and a gas supply port of a gas bearing of the compressor;
the liquid removing device is connected in series or in parallel to the first pipeline.
In some embodiments, the refrigeration system comprises the gas bearing gas supply system for the gas suspension compressor.
The air supply system and the refrigeration system of the gas bearing for the compressor provided by the embodiment of the disclosure can realize the following technical effects:
in the gas supply system of the gas bearing for the compressor in the embodiment of the disclosure, the gaseous refrigerant discharged from the gas supply tank can enter the liquid removing device before entering the gas bearing, and small liquid drops in the gaseous refrigerant are removed by the liquid removing device, so that the gaseous refrigerant sent to the gas bearing of the compressor is saturated gas and does not contain small liquid drops, and the stability of the operation of the compressor is ensured.
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 structural diagram of an air supply system for a gas bearing for a compressor according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an alternative air supply system for a gas bearing for a compressor according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an alternative air supply system for a gas bearing for a compressor according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of an alternative air supply system for a gas bearing for a compressor according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a refrigeration system provided by an embodiment of the present disclosure.
Reference numerals:
10. an air supply system; 11. an air supply tank; 111. a liquid refrigerant inlet; 112. a gaseous refrigerant inlet; 12. a liquid removal device; 13. a first pipeline; 131. a first flow control device; 132. a fourth flow control device; 14. a second pipeline; 141. a second flow control device; 15. a third pipeline; 151. a pump; 152. a first filtering device; 153. a first check valve; 16. a fourth pipeline; 161. a third flow rate control device; 162. a second filtering device; 163. a second one-way valve; 17. a fifth pipeline; 171. a fifth flow control device; 18. a mixing tank; 101. a first pressure monitoring device; 102. a first temperature monitoring device; 103. a first flow monitoring device; 104. a second pressure monitoring device; 105. a second temperature monitoring device; 106. a second flow monitoring device; 107. a third pressure monitoring device; 108. a third temperature monitoring device; 109. a third flow monitoring device; 20. a refrigeration system; 21. a compressor; 210. an exhaust port; 22. a condenser; 23. a throttling device; 24. 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 5, an embodiment of the present disclosure provides an air supply system 10 for a gas bearing of a compressor, which includes an air supply tank 11, a liquid removal device 12, and a first pipeline 13.
The gas supply tank 11 includes a refrigerant inlet and a gas outlet; the refrigerant inlet is connected to the refrigerant in the refrigeration system where the compressor 21 is located; a first pipeline 13, two ports of which are respectively communicated with a gas outlet of the gas supply tank 11 and a gas supply port of a gas bearing of the compressor 21; the liquid removing device 12 is connected in series or in parallel to the first pipeline 13.
In the gas supply system for the gas bearing for the compressor of the embodiment of the present disclosure, the gaseous refrigerant discharged from the gas supply tank 11 may enter the liquid removing device 12 before entering the gas bearing, and the liquid removing device 12 is used to remove the small liquid droplets in the gaseous refrigerant, so as to ensure that the gaseous refrigerant sent to the gas bearing of the compressor 21 is saturated gas and does not contain small liquid droplets, thereby ensuring the stability of the operation of the compressor.
In the disclosed embodiment, the liquid removing device 12 is a device capable of removing small liquid droplets entrained in the gaseous refrigerant. The principle of removal is not limited.
Alternatively, the liquid removing device 12 employs a heating device, and the introduced gaseous refrigerant is further heated by a heating device in the heating device, for example, a heating tank containing an electric heating pipe, to convert the small liquid droplets into gas. The heating power may be determined based on parameters such as the pressure and temperature of the gaseous refrigerant discharged from the gas supply tank 11, which may be monitored by a fluid monitoring device described below.
Alternatively, the liquid removal device 12 may be a cyclonic separation device that separates small liquid droplets by centrifugal force. The centrifugal rate may be determined by parameters such as the pressure and temperature of the gaseous refrigerant exiting the supply tank 11, which may be monitored by a fluid monitoring device as described below.
Optionally, the liquid removing device 12 is a composite liquid removing device of a cyclone separation device and a heating device, and the heating device is arranged at a gas outlet of the cyclone separation device, and is used for heating the gaseous refrigerant after centrifugal treatment.
In the embodiment of the present disclosure, the compressor 21 is a gas suspension centrifugal compressor using a gas bearing, and the kind of the gas bearing is not limited.
In the embodiment of the present disclosure, the liquid removing devices 12 may be arranged in series, as shown in fig. 1, and the liquid removing devices 12 are connected to the first pipeline 13 in series. When the liquid removing devices 12 are arranged in series, the gaseous refrigerant discharged from the gas supply tank 11 is always introduced into the liquid removing devices 12 and is subjected to the liquid removing treatment.
Optionally, a first flow control device 131 is disposed on the first line 13 to control the flow of the gaseous refrigerant entering the liquid removing device 12, so as to ensure that the compressor 21 is supplied with the gaseous refrigerant with stable pressure.
In the disclosed embodiment, the liquid removing devices 12 may be arranged in parallel (as shown in fig. 2). When the liquid removing devices 12 are arranged in parallel, it is possible to determine whether or not the liquid removing devices 12 need to be entered, or to determine how much proportion of the gaseous refrigerant enters the liquid removing devices 12 for liquid removing treatment, depending on parameters such as the pressure and temperature of the gaseous refrigerant discharged from the gas supply tank 11.
In some embodiments, as shown in fig. 2, the gas supply system 10 further includes a second pipeline 14, two ports of which are respectively communicated with the first pipeline 13; the liquid removal device 12 is connected in series to the second pipeline 14. The liquid removal device 12 is arranged in parallel with the first pipe 13.
In some embodiments, the gas supply system further includes a first flow control device 131 and a second flow control device 141, wherein the first flow control device 131 is disposed on the first pipeline 13 between two ports of the second pipeline 14; the second flow control device 141 is disposed on the second pipe 14. In this embodiment, the first flow control device 131 and the second flow control device 141 are valves, such as electric ball valves, but are not limited as long as the flow of the fluid in the pipeline can be adjusted.
In the embodiment of the present disclosure, by controlling the open states of the first flow control device 131 and the second flow control device 141, the following three flow schemes are implemented: first, the first flow control device 131 is controlled to be closed, and the second flow control device 141 is controlled to be opened, so that the liquid removing device 12 is connected in series. Secondly, the first flow control device 131 and the second flow control device 141 are controlled to be opened, and the opening ratio of the first flow control device and the second flow control device is controlled to control the flow dividing ratio, so that the gaseous refrigerant finally sent to the gas bearing of the compressor reaches a saturated state and does not contain small liquid drops. Thirdly, the first flow control device 131 is controlled to be opened, the second flow control device 141 is controlled to be closed, and the gaseous refrigerant is controlled to be directly fed into the gas bearing of the compressor when the gaseous refrigerant discharged from the gas supply tank is saturated and does not contain small liquid droplets. Depending on the circumstances, it is sufficient to determine the flow path scheme, and to reduce the energy consumption while ensuring that the gaseous refrigerant fed to the gas bearing of the compressor 21 is saturated.
In the embodiments of the present disclosure, the flow path scheme may be determined according to the kind of the gas bearing employed in the compressor. Alternatively, when the gas bearing is a hydrostatic bearing and the gas bearing is a porous throttle bearing, the liquid removing device 12 may be connected in series, or connected in parallel and controlled to adopt the first flow path scheme. Alternatively, when the gas bearing is a hydrostatic bearing and a small-hole restrictor or other type of restrictor is used instead of a porous restrictor bearing, the liquid removing device adopts a parallel connection mode and controls to adopt the second flow path scheme or the third flow path scheme. This is achieved by controlling the on states of the first flow control device 131 and the second flow control device 141.
In the embodiment of the present disclosure, the refrigerant inlet of the air supply tank 11 is connected to the refrigerant in the refrigeration system in which the compressor 21 is located. In the initial stage of the start-up of the refrigeration system, the pressure of the gaseous refrigerant in the line of the discharge port of the compressor is unstable, and therefore, in the initial stage of the start-up (including the initial start-up or the restart) of the refrigeration system, if the gaseous refrigerant in the line of the discharge port of the compressor is directly introduced, the pressure of the supplied gaseous refrigerant may be unstable, and the operation of the compressor may be affected.
Optionally, the first flow control device 131 employs a control valve, such as an electric ball valve.
Optionally, the second flow control device 141 employs a control valve, such as an electric ball valve.
In some embodiments, the refrigerant inlet of the gas supply tank 11 comprises a liquid refrigerant inlet 111; the air supply system further includes a third pipeline 15, and both ends of the third pipeline 15 are respectively communicated with the liquid refrigerant inlet 111 of the air supply tank 11 and the condenser 22 in the refrigeration system 20 where the compressor 21 is located. During the operation of the refrigeration system, the high-temperature and high-pressure liquid refrigerant discharged from the condenser 22 is sent into the gas supply tank 11, the liquid refrigerant is heated and evaporated into gaseous refrigerant in the gas supply tank 11, and then the gaseous refrigerant is discharged from a gas outlet of the gas supply tank 11, so that stable-pressure gas refrigerant can be provided for a gas bearing of the compressor 12, and the stability of the compressor in the initial operation stage can be ensured. Particularly, in the initial stage of the start-up of the refrigeration system, it is ensured that the gas refrigerant with stable pressure is supplied to the gas bearing of the compressor 12, and the stability of the compressor in the initial stage of the operation is ensured.
Optionally, the gas supply system 10 further includes a pump 151 and a first filtering device 152, and the pump 151 is connected to the third pipeline 15 to provide power for the third pipeline 15. The first filtering device 152 is provided in the third pipe line 15 between the condenser 22 and the pump 151, and filters the refrigerant in the third pipe line 15. In this embodiment, the pump 151 may be a liquid feed pump or an air feed pump, but is not limited to this, and may meet the requirement of pumping liquid refrigerant. The first filtering device 152 may be a conventional filter, and may be a filter for filtering impurities in the liquid refrigerant.
Optionally, the gas supply system 10 further comprises a first check valve 153 disposed on the third pipeline 15. Ensuring no counter flow. Optionally, a first one-way valve 153 is provided on the third line 15 between the pump 151 and the supply tank 11.
When the refrigeration system is in a steady operation state, the pressure of the gaseous refrigerant in the line of the discharge port 210 of the compressor 21 is in a steady state, and at this time, the gaseous refrigerant in the line of the discharge port 210 of the compressor 21 can be directly introduced into the gas supply tank 11, reducing the energy consumption of the gas supply tank 11. As shown in fig. 3, in some embodiments, the refrigerant inlet of the gas supply tank 11 further comprises a gaseous refrigerant inlet 112; the air supply system 10 further includes a fourth pipeline 16 and a third flow control device 161, wherein two ports of the fourth pipeline 16 are respectively communicated with the gas refrigerant inlet 112 of the air supply tank 11 and the pipeline at the air outlet 210 of the compressor 21, and the third flow control device 161 is arranged on the fourth pipeline 16. Whether or not the gaseous refrigerant discharged from the discharge port 210 of the compressor 21 is introduced into the gas supply tank 11 is controlled by controlling the opening or closing of the third flow control device 161.
Optionally, third flow control apparatus 161 employs a control valve, such as an electric ball valve.
Optionally, the air supply system 10 further includes a second filtering device 162 disposed on the fourth pipeline 16 for filtering the refrigerant in the fourth pipeline. The second filtering device 162 may employ a cyclone centrifugal device.
Optionally, the gas supply system 10 further includes a second check valve 163 disposed on the fourth pipeline 16. The gaseous refrigerant in the fourth line 16 is prevented from flowing backward, and the gaseous refrigerant discharged from the discharge port of the compressor 21 is ensured to flow toward the gas supply tank 11, thereby preventing the gaseous refrigerant in the gas supply tank 11 from flowing backward.
That is, in the air supply system 10 according to the embodiment of the present disclosure, the refrigerant in the air supply tank 11 may be supplied in the following three ways: first, the supply tank 11 is supplied with liquid refrigerant by the condenser 22 throughout the operation of the refrigeration system. Second, in the initial stage of the start-up of the refrigeration system, the condenser 22 supplies the liquid refrigerant to the air supply tank 11; during a stable operation of the refrigeration system, a gaseous refrigerant is supplied from the discharge port of the compressor 21 to the gas supply tank 11 while a liquid refrigerant is supplied from the condenser 22 to the gas supply tank 11. Thirdly, in the initial stage of the start-up of the refrigeration system, the condenser 22 supplies the liquid refrigerant to the air supply tank 11; during a stable operation of the refrigeration system, gaseous refrigerant is supplied from the discharge port of the compressor 21 to the gas supply tank 11. In the embodiment of the present disclosure, the refrigerant supply method of the air supply tank 11 in the air supply system 10 may be determined according to actual conditions. The second supply method and the third supply method may be implemented by the controller controlling the pump 151 to be started or stopped and the third flow rate control device 161 to be turned on or off, respectively.
Alternatively, when the controller determines that the refrigeration system is started, the start of the pump 151 is controlled and timed; and when the time reaches the set time, controlling the third flow control device 161 to be started. The second supply mode is realized. The pumping rate of the pump 151 and the opening degree of the third flow rate control device 161 may be determined in accordance with actual conditions.
Alternatively, when the controller determines that the refrigeration system is started, the start of the pump 151 is controlled and timed; when the time reaches the set time, the third flow control device 161 is controlled to be turned on, and the pump 151 is controlled to stop at the same time or with a delay. A third supply mode is implemented.
In the embodiment of the present disclosure, the setting time may be set according to the actual time required for the refrigeration system to enter the stable operation from the start, for example, the setting time is 60s to 180 s.
In the embodiment of the present disclosure, when the delay control pump 151 stops, the specific delay time is not limited, and may be determined according to actual conditions. For example, the delay time is 30s to 120 s.
In some embodiments, as shown in fig. 4, the gas supply system 10 further comprises a fifth pipe 17, a mixing tank 18, a fourth flow control device 132 and a fifth flow control device 171, the fifth pipe 17 being connected in parallel to the first pipe 13 on the gas supply side of the gas bearing of the compressor 21; the mixing tank 18 is arranged in series in the fifth pipeline 17; the fourth flow control device 132 is disposed in the first conduit 13 between the two ports of the fifth conduit 17; a fifth flow control device 171 is provided in the fifth conduit 17.
In the embodiment of the present disclosure, when the gas supply system 10 adopts the second flow path scheme, the fourth flow control device 132 is controlled to be closed and the fifth flow control device 171 is controlled to be opened, so that the gaseous refrigerants respectively flowing through the first pipeline 13 and the second pipeline 14 where the liquid removal device 12 is located enter the mixing tank 18 together, and after being uniformly mixed, the gaseous refrigerants are sent into the gas bearing of the compressor 21. The energy consumption is saved while the gaseous refrigerant is ensured to reach a saturated state.
When the gas supply system 10 adopts the first flow path scheme or the third flow path scheme, the fourth flow control device 132 is controlled to be opened and the fifth flow control device 171 is controlled to be closed, and the gaseous refrigerant treated by the liquid removal device 12 is directly fed into the gas bearing of the compressor 21 or the gaseous refrigerant discharged from the gas supply tank 11 is directly fed into the gas bearing of the compressor 21.
Optionally, the fourth flow control device 132 employs a control valve, such as a motorized ball valve.
Optionally, the fifth flow control device 171 employs a control valve, for example, an electric ball valve.
In some embodiments, the gas supply system 10 further comprises a fluid monitoring device respectively disposed on the pipeline at the refrigerant inlet of the gas supply tank 11, the pipeline at the gas outlet of the gas supply tank 11, and the pipeline at the gas supply port of the gas bearing of the compressor 21. That is, in the embodiment of the present disclosure, the fluid monitoring device is used to monitor the parameters of the refrigerant on each pipeline section, so as to control the heating power of the gas supply tank 11, the heating power of the liquid removing device 12 or the cyclone centrifugal rate.
Optionally, the fluid monitoring device includes a pressure monitoring device, a temperature monitoring device, a flow rate monitoring device, and the like, and one or more of the fluid monitoring devices may be selected according to actual needs. After the type of the refrigerant is determined, inquiring a pressure-enthalpy diagram of the refrigerant according to the current pressure value P, so that the saturated steam temperature T of saturated steam under the current pressure can be obtained, and when the current temperature T obtained by monitoring is greater than the saturated steam temperature T, the gaseous refrigerant is in a (superheated) saturated state; when the current temperature T obtained by monitoring is less than the saturated steam temperature T °, the gaseous refrigerant is in an unsaturated state, and parameters such as the heating power of the gas supply tank 11 and the like are determined according to the difference between the current temperature T and the saturated steam temperature T °.
Alternatively, fluid monitoring means, including a first pressure monitoring means 101, a first temperature monitoring means 102 and a first flow rate monitoring means 103, are provided on the piping at the refrigerant inlet of the gas supply tank 11. Various parameters of the refrigerant entering the gas supply tank 11 are monitored. Wherein, when the refrigerant inlet of the gas supply tank 11 comprises a liquid refrigerant inlet 111 and a gaseous refrigerant inlet 112, a first pressure monitoring device 101, a first temperature monitoring device 102 and a first flow monitoring device 103 are respectively arranged on the pipeline at the liquid refrigerant inlet 111 and at the gaseous refrigerant inlet 112.
Optionally, the fluid monitoring device further comprises a second pressure monitoring device 104, a second temperature monitoring device 105 and a second flow monitoring device 106, which are disposed on the pipeline at the gas outlet of the gas supply tank 11. Various parameters of the gas refrigerant discharged after the heating and pressurizing treatment by the gas supply tank 11 are monitored.
Optionally, the fluid monitoring device further includes a third pressure monitoring device 107, a third temperature monitoring device 108 and a third flow monitoring device 109, which are disposed on the pipeline at the gas supply port of the gas bearing of the compressor 21. Various parameters of the gaseous refrigerant entering the gas bearings of the compressor 21 are monitored. The process parameters of the above-mentioned equipment such as the gas supply tank 11 can be controlled by the monitoring data of the fluid monitoring device.
Referring to fig. 1 to 5, a refrigeration system 20 is provided in an embodiment of the present disclosure, which includes the gas supply system 10 for a gas bearing for a compressor.
The refrigeration system of the embodiment of the present disclosure includes a compressor 21, a condenser 22, a throttle device 23, and an evaporator 24, which are connected in sequence, and are connected by a pipeline to form a refrigeration cycle circuit. 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 fig. 5, which is not described again.
In the refrigeration system according to the embodiment of the present disclosure, the gas supply system 10 may be a saturated gas, which does not contain small liquid droplets, and the gas refrigerant of the gas bearing of the compressor is a saturated gas, so as to ensure the stability of the operation of the compressor.
In the embodiments of the present disclosure, the refrigeration system may be any chiller system that employs a gas suspension compressor.
In the embodiment of the present disclosure, a refrigeration system as shown in fig. 5 is a schematic structural diagram of an air supply system shown in fig. 1, wherein, for convenience and intuition, a cooling and air-make-up enthalpy increasing pipeline of a compressor motor is omitted in fig. 5. According to actual requirements, the air supply system 10 shown in fig. 2, fig. 3 and fig. 4 is respectively connected to the refrigeration system to obtain a corresponding refrigeration system. And will not be described in detail herein.
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. An air supply system for a gas bearing for a compressor, comprising:
a gas supply tank including a refrigerant inlet and a gas outlet; the refrigerant inlet is connected to a refrigerant in a refrigeration system where the compressor is located;
the two ports of the first pipeline are respectively communicated with a gas outlet of the gas supply tank and a gas supply port of a gas bearing of the compressor;
and the liquid removing device is connected in series or in parallel to the first pipeline.
2. The gas supply system of claim 1, further comprising:
the two ports of the second pipeline are respectively communicated with the first pipeline;
the liquid removing device is connected in series to the second pipeline.
3. The gas supply system of claim 2, further comprising:
the first flow control device is arranged on the first pipeline between two ports of the second pipeline;
and the second flow control device is arranged on the second pipeline.
4. The air supply system of claim 1, wherein the refrigerant inlet comprises a liquid refrigerant inlet; the gas supply system further comprises:
and two ports of the third 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.
5. The gas supply system of claim 4, further comprising:
the pump is connected to the third pipeline and provides power for the third pipeline;
and a first filtering device disposed on the third pipeline between the condenser and the pump, for filtering the refrigerant in the third pipeline.
6. The air supply system of claim 4, wherein the refrigerant inlet further comprises a gaseous refrigerant inlet; the gas supply system further comprises:
a fourth 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 third flow control device is arranged on the fourth pipeline.
7. The gas supply system of claim 6, further comprising:
and a second filtering device disposed on the fourth pipeline for filtering the refrigerant in the fourth pipeline.
8. The gas supply system according to any one of claims 2 to 7, further comprising:
a fifth pipeline connected in parallel to the first pipeline on the gas supply port side of the gas bearing of the compressor;
the mixing tank is arranged in the fifth pipeline in series;
a fourth flow control device disposed on the first pipeline between two ports of the fifth pipeline;
and the fifth flow control device is arranged on the fifth pipeline.
9. The gas supply system according to any one of claims 1 to 7, further comprising:
and the fluid monitoring devices are respectively arranged on a pipeline at a refrigerant inlet of the gas supply tank, a pipeline at a gas outlet of the gas supply tank and a pipeline at a gas supply opening of a gas bearing of the compressor.
10. A refrigeration system comprising the gas bearing gas supply system for a gas suspension compressor as claimed in any one of claims 1 to 9.
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| CN202020822097.5U CN213066639U (en) | 2020-05-15 | 2020-05-15 | Gas bearing gas supply system for compressor and refrigeration system |
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| CN202020822097.5U CN213066639U (en) | 2020-05-15 | 2020-05-15 | Gas bearing gas supply system for compressor and refrigeration system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959116A (en) * | 2021-09-27 | 2022-01-21 | 青岛海尔空调电子有限公司 | Compressor bearing air supply system and air suspension compressor system |
| CN114198949A (en) * | 2021-11-22 | 2022-03-18 | 青岛海尔空调电子有限公司 | Liquid supply system of compressor |
| CN114234490A (en) * | 2021-11-19 | 2022-03-25 | 青岛海尔空调电子有限公司 | Condenser and air supply system for suspension bearing |
| CN114508874A (en) * | 2022-01-26 | 2022-05-17 | 青岛海尔空调电子有限公司 | Compressor cooling system, cooling method and air conditioner |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113959116A (en) * | 2021-09-27 | 2022-01-21 | 青岛海尔空调电子有限公司 | Compressor bearing air supply system and air suspension compressor system |
| CN114234490A (en) * | 2021-11-19 | 2022-03-25 | 青岛海尔空调电子有限公司 | Condenser and air supply system for suspension bearing |
| WO2023087687A1 (en) * | 2021-11-19 | 2023-05-25 | 青岛海尔空调电子有限公司 | Condenser, and gas supply system for suspension bearing |
| CN114198949A (en) * | 2021-11-22 | 2022-03-18 | 青岛海尔空调电子有限公司 | Liquid supply system of compressor |
| CN114198949B (en) * | 2021-11-22 | 2023-10-20 | 青岛海尔空调电子有限公司 | Liquid supply system of compressor |
| CN114508874A (en) * | 2022-01-26 | 2022-05-17 | 青岛海尔空调电子有限公司 | Compressor cooling system, cooling method and air conditioner |
| CN114508874B (en) * | 2022-01-26 | 2024-06-07 | 青岛海尔空调电子有限公司 | Compressor cooling system, cooling method and air conditioner |
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