CN113757162A

CN113757162A - Gas suspension compressor and refrigeration equipment

Info

Publication number: CN113757162A
Application number: CN202010500046.5A
Authority: CN
Inventors: 俞国新; 刘增岳; 朱万朋; 韩聪; 李思茹; 殷纪强
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-12-07

Abstract

The application relates to the technical field of refrigeration, discloses a gas suspension compressor, includes: the first bearing seat is provided with a first pressure stabilizing cavity, a first outer air inlet channel, a first communication channel and a first air outlet channel; the second bearing seat is provided with a second pressure stabilizing cavity, a second communicating channel and a second air outlet channel; the shell is arranged between the first bearing seat and the second bearing seat, a flow passage is arranged on the shell, one end of the flow passage is communicated with the first pressure stabilizing cavity through the first communicating channel, and the other end of the flow passage is communicated with the second pressure stabilizing cavity through the second communicating channel. A pressure stabilizing cavity is arranged in a bearing seat adopted in the air suspension compressor, supplied air is output after being buffered and equalized by the pressure stabilizing cavity, and equipment such as an air supply tank and the like is not required to be added on an air supply pipeline, so that the complexity of an air supply system is reduced, and the reliability of the air supply system is improved. The application also discloses a refrigeration plant.

Description

Gas suspension compressor and refrigeration equipment

Technical Field

The application relates to the technical field of refrigeration, for example to a gas suspension compressor and refrigeration equipment.

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. Therefore, in the air supply system of the existing air suspension compressor, in order to ensure stable air supply pressure, an air supply tank needs to be additionally arranged on the periphery of the compressor for pressure stabilization.

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 existing air supply system of the air suspension compressor, an air supply tank is needed to ensure stable air supply pressure, so that the air supply system is complex.

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 gas suspension compressor and refrigeration equipment, which are used for solving the problem that in an existing gas suspension compressor gas supply system, a gas supply tank is needed to ensure stable gas supply pressure, so that the gas supply system is complex.

In some embodiments, the air-suspension compressor comprises:

the first bearing seat is provided with a first pressure stabilizing cavity, a first outer air inlet channel, a first communication channel and a first air outlet channel, one end of the first outer air inlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first outer air inlet channel is communicated with the outside; one end of the first air outlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first air outlet channel is used for outputting air into a gap of the air bearing of the air suspension compressor from the first pressure stabilizing cavity;

the second bearing seat is provided with a second pressure stabilizing cavity, a second communicating channel and a second gas outlet channel, one end of the second gas outlet channel is communicated with the second pressure stabilizing cavity, and the other end of the second gas outlet channel is arranged to output gas into a gap of the gas bearing of the gas suspension compressor from the second pressure stabilizing cavity;

the shell is arranged between the first bearing seat and the second bearing seat, a flow passage is arranged on the shell, one end of the flow passage is communicated with the first pressure stabilizing cavity through a first communicating channel, and the other end of the flow passage is communicated with the second pressure stabilizing cavity through a second communicating channel.

In some embodiments, the refrigeration equipment comprises the gas suspension compressor.

The gas suspension compressor and the refrigeration equipment provided by the embodiment of the disclosure can realize the following technical effects:

in the bearing seat adopted in the air suspension compressor of the embodiment of the disclosure, the pressure stabilizing cavity is arranged on the bearing seat, and the supplied air (for example, gaseous refrigerant) is buffered and equalized by the pressure stabilizing cavity and then output, so that the gaseous refrigerant in the air supply system of the air suspension compressor can be directly conveyed into the air suspension compressor after being pressurized by the pumping device, and equipment such as an air supply tank and the like does not need to be added on the air supply pipeline, thereby reducing the complexity of the air supply system and improving the reliability of the air supply system. Meanwhile, the pressure stabilizing cavity is arranged on the bearing seat, and the idle solid structure position on the existing bearing seat is utilized, so that the size of the bearing seat is not increased, and the structure of the existing air suspension compressor is not changed.

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 cross-sectional view of a bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural view of an inner end surface of a bearing seat for an air-suspension compressor provided by an embodiment of the disclosure;

FIG. 8 is a schematic structural view of an inner end surface of a bearing seat for an air-bearing compressor according to another embodiment of the present disclosure;

FIG. 9 is a schematic cross-sectional view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 10 is a schematic cross-sectional view of another bearing seat for an air suspension compressor provided in an embodiment of the present disclosure;

FIG. 11 is a schematic cross-sectional exploded view of another bearing seat for an air suspension compressor according to an embodiment of the present disclosure;

FIG. 12 is a schematic cross-sectional view of an air suspension compressor according to an embodiment of the present disclosure;

FIG. 13 is a schematic cross-sectional view of another gas suspension compressor provided in accordance with an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another bearing seat for an air suspension compressor provided in the embodiments of the present disclosure;

FIG. 15 is a schematic diagram of an air supply system of an air suspension compressor according to an embodiment of the present disclosure;

FIG. 16 is a schematic diagram of an air supply system of another air suspension compressor according to an embodiment of the present disclosure;

reference numerals:

100. a body; 101. a bearing bore; 102. an inner end surface; 1021. a low step surface; 1022. a high step surface; 1023. a transition wall surface; 103. a notch; 104. a flange; 105. an outer end face; 106. a convex ring; 110. a voltage stabilizing cavity; 120. an air intake passage; 121. an outer air intake passage; 122. an inner air intake passage; 130. an air outlet channel; 140. a communication channel; 151. an inner valve; 152. an inner two-valve; 160. a voltage stabilizing box; 161. an accommodating cavity; 162. an air inlet convex column; 1621. an external air inlet convex column; 1622. an inner air inlet convex column; 163. an air outlet convex column; 164. the convex column is communicated; 165. positioning the convex column; 200 gas suspension compressor; 210. a first bearing housing; 211. a first gas bearing gas supply port; 212. a second gas bearing gas supply port; 220. a second bearing housing; 230. a housing; 231. a groove; 232. a flow channel; 240. a first-stage volute; 250. a second-stage volute; 310. a pumping device; 320. a condenser; 330. a throttling device; 340. an evaporator; 310. a pumping device; 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.

In the embodiment of the present disclosure, the gas suspension compressor generally includes a housing, a stator, a rotor, a first gas bearing and a second gas bearing (each gas bearing includes a bearing seat and a bearing), a first-stage volute and a second-stage volute, and the first gas bearing and the second gas bearing are disposed at two end portions of the housing, the rotor is disposed along a central axis of the housing, and two ends of the rotor are respectively connected to bearings in the gas bearings. The stator is fixedly arranged between the inner wall of the shell and the rotor. The first-stage volute is arranged on the first gas bearing side, and the second-stage volute is arranged on the second gas bearing side; the first-stage volute is provided with a first-stage gas inlet, and the second-stage volute is provided with a second-stage high-pressure gas outlet. The bearing seat of the gas bearing is provided with a gas channel for introducing gas into a gap between the bearing seat and the bearing. The structure of the bearing seat in the gas bearing is determined according to the structural form of the adopted bearing. The bearing comprises a radial bearing, a thrust bearing and the like, and the structure of the bearing seat can be a corresponding structure.

As shown in fig. 1 to 11, an embodiment of the present disclosure provides a bearing housing for an air suspension compressor 200, which includes a body 100, an air inlet channel 120, and an air outlet channel 130. A pressure stabilizing cavity 110 is arranged on the body 100; the air inlet channel 120 is arranged in the body 100, is communicated with the pressure stabilizing cavity 110, and is used for inputting air into the pressure stabilizing cavity 110; the air outlet channel 130 is disposed in the body 100, is communicated with the pressure maintaining cavity 110, and is configured to output air from the pressure maintaining cavity 110.

In the bearing seat of the embodiment of the disclosure, the pressure stabilizing cavity 110 is arranged on the bearing seat, and the supplied gas (for example, gaseous refrigerant) is buffered and equalized by the pressure stabilizing cavity 110 and then output, so that the gaseous refrigerant in the air supply system of the air suspension compressor 200 can be directly conveyed into the air suspension compressor 200 after being pressurized by the pumping device 310, and equipment such as an air supply tank and the like does not need to be added on the air supply pipeline, thereby reducing the complexity of the air supply system and improving the reliability of the air supply system. Meanwhile, the pressure stabilizing cavity 110 is arranged on the bearing seat, and the idle solid structure position on the existing bearing seat is utilized, so that the volume of the bearing seat is not increased, and the structure of the existing air suspension compressor 200 is not changed.

In the embodiment of the present disclosure, the pressure stabilizing cavity 110, the air inlet channel 120, and the air outlet channel 130 may be integrally formed with the body 100 of the bearing seat, or may be machined on the body 100 of the existing bearing seat.

In the embodiment of the present disclosure, the air outlet channel 130 of the bearing seat is an air supply channel for supplying air into the gap of the air bearing of the air suspension compressor 200, and therefore the arrangement of the air outlet channel 130 may be according to the arrangement of the air outlet holes on the existing air bearing. The pressure stabilizing cavity 110 is only required to be communicated with all the air outlet channels 130.

In some embodiments, the bearing seat includes bearing holes, and the air outlet channels 130 are uniformly distributed on the peripheral wall of the bearing holes; the plenum 110 is then in the shape of an annulus surrounding the bearing bore.

Alternatively, plenum 110 may be square, circular, or elliptical in cross-section, etc. Reducing the turbulence of the gas within the plenum chamber 110.

Optionally, the inner wall surface of the pressure stabilizing cavity 110 close to the bearing hole side is a curved surface; the inlet port of the outlet channel 130 is located at the lowest position of the curved surface. Gas buffering is increased, and turbulence is reduced.

In the embodiment of the present disclosure, the size of the voltage stabilizing cavity 110 is not limited, and the strength of the bearing seat is ensured while the buffering and voltage stabilizing effects are ensured.

In some embodiments, the axial width of the plenum 110 is one-quarter to three-quarters of the axial width (thickness) of the bearing housing body 100 where the plenum 110 is located.

Optionally, the axial width of the plenum 110 is one-third to two-thirds of the axial width (thickness) of the bearing housing body 100 at the location of the plenum 110.

Optionally, the axial width of the plenum 110 is one half of the axial width (thickness) of the bearing housing body 100 at the location of the plenum 110.

In some embodiments, the plenum 110 has a radial width that is one-quarter to three-quarters of the radial width of the bearing housing body 100.

Optionally, the plenum 110 has a radial width that is one-third to two-thirds of the radial width of the bearing housing body 100.

Optionally, the plenum 110 has a radial width that is one-half of the radial width of the bearing housing body 100.

In some embodiments, intake passage 120 includes an outer intake passage 121 and/or an inner intake passage 122. The outer air inlet channel 121 is set to input air into the pressure stabilizing cavity 110 by an air supply system of the air suspension compressor 200; the inner inlet passage 122 is configured to input gas from the inner cavity of the volute of the gas suspension compressor 200 into the plenum 110. In this embodiment, the air intake passage 120 may be determined according to the actual condition of the refrigeration system in which the air-suspending compressor 200 is located. The number of the outer intake passages 121 and the inner intake passages 122 is not limited, and may be determined according to the actual conditions such as the volume of the surge chamber 110. For example, the number of the outer intake passages 121 is 1. The number of the inner intake passages 122 is 1, 2, or more.

Alternatively, the outer inlet passage 121 is arranged to extend generally radially of the bearing housing. The pipeline layout of an external air supply system is facilitated.

Alternatively, the inner air inlet passage 122 is disposed generally along the axial extension of the bearing housing. Conveniently communicating with the inner chamber of the volute of the gas suspension compressor 200.

Optionally, the inner intake passage 122 extends towards the outer end face 105 of the bearing housing towards the volute side of the aero-levitation compressor 200. Conveniently communicating with the inner chamber of the volute of the gas suspension compressor 200.

Optionally, a collar 106 is provided on the outer face 105 of the bearing seat. The positioning of the installation is convenient, and the reliability of connection is enhanced. The number of the convex rings 106 is not limited, and can be determined according to actual needs. In the bearing seat shown in FIG. 2, there are two collars 106 on the outer face 105 of the bearing seat

Alternatively, the inner intake passage 122 may be provided at one end portion thereof on the male ring 106. The sealing performance of the communication part is enhanced, and air leakage is prevented.

Alternatively, as shown in fig. 1, the intake passage 120 is an outer intake passage 121. Only the gas supply system of the gas suspension compressor 200 feeds gas into the plenum 110.

Namely, the first bearing housing, includes a body 100, an outer inlet passage 121, and an outlet passage 130. A pressure stabilizing cavity 110 is arranged on the body 100; the outer air inlet channel 121 is arranged on the body 100, is communicated with the pressure stabilizing cavity 110, and is set to input air into the pressure stabilizing cavity 110 by an air supply system of the air suspension compressor 200; the air outlet channel 130 is disposed in the body 100, is communicated with the pressure maintaining cavity 110, and is configured to output air from the pressure maintaining cavity 110.

Alternatively, as shown in FIG. 2, intake passage 120 is an inner intake passage 122. Gas is only input into the plenum chamber 110 from the inner cavity of the volute of the gas suspension compressor 200.

I.e., the second bearing housing, includes a body 100, an inner inlet passage 122, and an outlet passage 130. A pressure stabilizing cavity 110 is arranged on the body 100; the inner air inlet passage 122 is arranged in the body 100, is communicated with the pressure stabilizing cavity 110, and is arranged to input air into the pressure stabilizing cavity 110 from the inner cavity of the volute of the air suspension compressor 200; the air outlet channel 130 is disposed in the body 100, is communicated with the pressure maintaining cavity 110, and is configured to output air from the pressure maintaining cavity 110.

Optionally, as shown in fig. 3, the air inlet passage 120 includes an outer air inlet passage 121 and an inner air inlet passage 122, i.e., air may be input into the pressure stabilizing cavity 110 by an air supply system of the air suspension compressor 200, or input into the pressure stabilizing cavity 110 by an inner cavity of a volute of the air suspension compressor 200.

That is, the third bearing housing includes a body 100, an outer inlet passage 121, an inner inlet passage 122, and an outlet passage 130. A pressure stabilizing cavity 110 is arranged on the body 100; the outer air inlet channel 121 is arranged on the body 100, is communicated with the pressure stabilizing cavity 110, and is set to input air into the pressure stabilizing cavity 110 by an air supply system of the air suspension compressor 200; the inner air inlet passage 122 is arranged in the body 100, is communicated with the pressure stabilizing cavity 110, and is arranged to input air into the pressure stabilizing cavity 110 from the inner cavity of the volute of the air suspension compressor 200; the air outlet channel 130 is disposed in the body 100, is communicated with the pressure maintaining cavity 110, and is configured to output air from the pressure maintaining cavity 110.

In some embodiments, the bearing housing further comprises a communication channel 140. The communication channel 140 is provided in the body 100, and is communicated with the surge chambers 110, and is provided to realize communication between the surge chambers 110 of the bearing housings at both sides of the air suspension compressor 200. The pressure stabilizing cavities 110 of the bearing seats on the two sides of the air suspension compressor 200 are consistent, the air supply pressure is consistent, and the performance of the air suspension compressor 200 is improved. In certain cases, the air may be supplied from the compression cavity on the second volute side of the air-suspending compressor 200 to the compression cavity on the first volute side.

That is, on the basis of the first bearing seat to the third bearing seat shown in fig. 1 to 3, the communication channel 140 is added to the body 100, and a fourth bearing seat (shown in fig. 4), a fifth bearing seat (shown in fig. 5) and a sixth bearing seat (shown in fig. 6) are correspondingly obtained.

In some embodiments, the bearing housing further comprises an inner valve 151 disposed within the inner inlet passage 122 and configured to regulate the flow of gas within the inner inlet passage 122; when the bearing housing includes the communication passage 140, an internal valve 152 is further included, disposed in the communication passage 140, configured to regulate the flow of gas in the communication passage 140. The gas pressure in the pressure stabilizing cavity 110 is ensured to be uniform and stable by adjusting the gas flow in the channel.

In this embodiment, the specific types of the valves used for the first internal valve 151 and the second internal valve 152 are not limited, as long as the flow rate can be adjusted. Alternatively, the internal one-valve 151 and the internal two-valve 152 are electrically controlled valves, so that the flow control of the internal intake passage 122 and the communication passage 140 is automatically controlled.

In some embodiments, a notch 103 communicating with the plenum chamber 110 is provided on the inner end surface 102 of the body 100 connectable with the shell 230 of the air suspension compressor 200, and a flange 104 protruding in the axial direction of the body 100 is provided on the edge of the notch 103. In this embodiment, correspondingly, a matching recess 231 is provided on the end face of the housing 230. The molding of the plenum 110 is facilitated and the sealing of the plenum 110 is ensured.

Alternatively, when plenum 110 is in the shape of a torus, gap 103 is in the shape of a ring. In this embodiment, the flanges 104 on the edges of the notch 103 include an inboard flange and an outboard flange to improve sealing.

In some embodiments, as shown in fig. 1 and 7, the inner end surface 102 of the body 100 of the bearing seat is stepped, the outer side of the inner end surface 102 of the body 100 is a low step surface 1021, and the central part is a high step surface 1022; the notch 103 is located on the low step surface 1021 of the inner end surface 102 of the body 100 and is adjacent to the high step surface 1022. The inner end surface 102 of the body 100 is an inner flange of the notch 103 from the low step surface 1021 to the transition wall surface 1023 of the high step surface 1022.

In some embodiments, as shown in connection with fig. 4 and 8, one end of the communication channel 140 of the bearing housing is disposed on the flange 104. The protruding structure of the flange 104 enhances the sealing property of the communication portion.

Alternatively, when the gap 103 is annular, one end of the communication channel 140 of the bearing housing is disposed on the outer flange.

In some embodiments, the bearing housing further comprises a pressure sensor (not shown) disposed within plenum 110 for detecting a gas pressure within plenum 110. The pressure and flow of gas delivered into plenum 110 is regulated by gas pressure data fed back from the pressure sensor. In this embodiment, the number of the pressure sensors may be 1 or more, and when the number of the pressure sensors is more than one, whether the gas pressure in the pressure stabilizing cavity 110 is uniform and stable may be determined by comparing the pressure values of the pressure sensors.

In some embodiments, as shown in fig. 9-11 in combination, the bearing housing further includes a plenum 160 disposed within plenum 110; the surge tank 160 has a housing chamber 161; the accommodation chamber 161 communicates with the inlet passage 120 and the outlet passage 130, respectively. When the bearing housing includes the communication passage 140, the accommodation chamber 161 communicates with the communication passage 140. The intake passage 120 includes an outer intake passage 121 and/or an inner intake passage 122. In this embodiment, the arrangement of the surge tank 160 can simplify the structure of the surge chamber 110 of the bearing housing. The pressure stabilizing cavity 110 may be an open channel on the inner end surface 102 of the body 100. The pressure stabilizing box 160 is arranged in the pressure stabilizing cavity 110 of the open groove body, and the accommodating cavity 161 of the pressure stabilizing box 160 is ensured to be connected with the air inlet channel 120, the air outlet channel 130 and the communication channel 140 in a sealing manner. In this embodiment, the receiving chamber 161 in the surge tank 160 functions as the surge chamber 110. In the embodiment of the present disclosure, only the sixth bearing seat shown in fig. 6 is taken as an example for illustration, and of course, the structure of the surge tank 160 is also applicable to any one of the bearing seats shown in fig. 1 to 5, and the specific structure thereof may be determined according to actual conditions.

In the embodiment of the present disclosure, the shape of the surge tank 160 is the same as that of the surge chamber 110, and the accommodating chamber 161 of the surge tank 160 has the same shape as that of the surge chamber 110.

Optionally, a casing of the pressure stabilizing box 160 is provided with an air inlet convex column 162 and an air outlet convex column 163; a channel is arranged in the air inlet convex column 162 and is communicated with the accommodating cavity 161; a channel is formed in the air outlet convex column 163 and is communicated with the accommodating cavity 161. Correspondingly, an air inlet groove matched with the air inlet convex column 162 is formed at the connecting end of the air inlet channel 120 on the body 100 and the pressure stabilizing box 160; the connection end of the air outlet channel 130 on the body 100 and the pressure stabilizing box 160 is provided with an air outlet groove matched with the air outlet convex column 163. And, when the air inlet convex column 162 is fitted with the air inlet groove, the air inlet passage 120 is communicated with the passage on the air inlet convex column 162. When the air outlet convex column 163 is matched with the air outlet groove, the air outlet channel 130 is communicated with the channel on the air outlet convex column 163. The sealing effect of the communication part is increased, and meanwhile, the positioning effect can be achieved for assembling the pressure stabilizing box 160.

Optionally, intake cylinder 162 includes an outer intake cylinder 1621 and/or an inner intake cylinder 1622. An outer air inlet groove and/or an inner air inlet groove are/is formed on the inner wall of the pressure stabilizing cavity 110 of the body 100 at the corresponding position.

Optionally, when the bearing seat includes the communication channel 140, a communication convex column 164 is disposed on the housing of the surge tank 160, and a channel is disposed in the communication convex column 164 and is communicated with the accommodating cavity 161.

Alternatively, as shown in fig. 10, a positioning boss 165 is provided on a side wall of the surge tank 160 on the inner end surface 102 side of the body 100 for positioning connection of the housing 230 connected thereto. The number of the positioning bosses 165 is not limited, and may be one or more.

Alternatively, as shown in fig. 10, a communication boss 164 is provided on a side wall of the surge tank 160 on the inner end surface 102 side of the body 100, and a passage opened in the communication boss 164 serves as the communication passage 140. The communicating convex column 164 plays a role in positioning while playing a role in communicating. The structure of the communication channel 140 and the flange 104 arranged on the body 100 of the bearing seat is changed to the pressure stabilizing box 160, the positioning convex column 165, the communication convex column 164 and the communication channel 140 are integrated into a whole, and the structure is simple and compact.

Referring to fig. 1 to 12, an embodiment of the present disclosure provides an air suspension compressor 200. The air suspension compressor 200 includes a first bearing housing 210 and a second bearing housing 220; and, the first bearing seat 210 and/or the second bearing seat 220 adopt the bearing seat of any of the previous embodiments.

In the embodiment of the present disclosure, the first bearing seat 210 and the second bearing seat 220 in the air suspension compressor 200 are bearing seats disposed at two end sides, and are defined as a "first bearing seat" and a "second bearing seat" for convenience of distinction, and when understanding the structure of the bearing seat used by the first bearing seat 210 and the second bearing seat 220 of the air suspension compressor 200 in the embodiment of the present disclosure, refer to the foregoing bearing seat embodiment, and it is sufficient to omit the "first" and the "second" steps.

In some embodiments, the first bearing housing 210 and the second bearing housing 220 are both first bearing housings as shown in fig. 1.

In some embodiments, as shown in FIG. 12, a third bearing seat, as shown in FIG. 3, is used for each of the first bearing seat 210 and the second bearing seat 220. That is, when the air inlet through hole of the bearing seat used for each of the first bearing seat 210 and the second bearing seat 220 includes the inner air inlet passage 122, the inner air inlet passage 122 communicates with the inner cavity of the volute of the air suspension compressor 200. Specifically, the inner intake passage 122 of the first bearing housing 210 communicates with an inner cavity of the one-stage volute 240 of the aero-levitation compressor 200. The inner air inlet passage 122 of the second bearing housing 220 communicates with the inner cavity of the two-stage volute 250 of the air-suspending compressor 200.

In some embodiments, the air suspension compressor 200 further includes a housing 230 disposed between the first bearing housing 210 and the second bearing housing 220; when the inner end surface 102 of the bearing seat employed by the first bearing seat 210 and/or the second bearing seat 220 is provided with a flange 104, the end surface of the respective side of the housing 230 is provided with a matching groove 231. Increasing the sealing of plenum 110 (or the receiving chamber 161 of plenum 160).

Alternatively, the housing 230 is a cylindrical housing.

Referring to fig. 1 to 11 and 13, an embodiment of the present disclosure provides an air suspension compressor 200. The air suspension compressor 200 includes a first bearing housing 210, a second bearing housing 220, and a housing 230 (cylindrical housing).

A first pressure stabilizing cavity, a first outer air inlet channel, a first communication channel and a first air outlet channel are arranged on the first bearing seat 210, one end of the first outer air inlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first outer air inlet channel is communicated with the outside; one end of the first air outlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first air outlet channel is arranged to output air from the first pressure stabilizing cavity to the gap of the air bearing of the air suspension compressor 200 (namely, the gap between the first bearing seat 210 and the first bearing); that is, the first bearing housing 210 may employ a fourth bearing housing as shown in fig. 4.

A second pressure stabilizing cavity, a second communicating channel and a second air outlet channel are arranged on the second bearing seat 220, one end of the second air outlet channel is communicated with the second pressure stabilizing cavity, and the other end of the second air outlet channel is arranged to output air from the second pressure stabilizing cavity to the gap of the air bearing of the air suspension compressor 200 (namely, the gap between the second bearing seat 220 and the second bearing). Among them, the second bearing housing 220 may be a bearing housing as shown in fig. 14. This bearing housing differs from the fifth bearing housing shown in fig. 5 in that the inner air inlet passage 122 is not provided.

The housing 230 is disposed between the first bearing seat 210 and the second bearing seat 220, and is provided thereon with a flow passage 232, one end of the flow passage 232 is communicated with the first pressure maintaining cavity through a first communicating passage, and the other end is communicated with the second pressure maintaining cavity through a second communicating passage.

The number of the gas bearing gas supply ports of the aero-levitation compressor 200 according to the embodiment of the present disclosure is only 1, that is, one end of the first outer gas inlet passage on the first bearing housing 210, which communicates with the outside. The supplied gas flows from the first bearing housing 210 to the second bearing housing 220 through a flow passage 232 provided in the housing 230.

In the embodiment of the present disclosure, "first" and "second" are only used to distinguish the bearing seats on two sides of the air suspension compressor 200, and each structural component on the bearing seat is the structural component of the aforementioned bearing seat, and in understanding, the "first" and the "second" are omitted.

In some embodiments, the first bearing seat 210 further includes a first inner air inlet channel configured to input air from an inner cavity of the one-stage volute of the aero-levitation compressor 200 into the first pressure stabilization cavity; and/or, the second bearing housing, further comprises a second inner gas inlet passage 122 configured to input gas from the inner cavity of the two-stage volute of the aero-levitation compressor 200 into the second surge chamber. In the present embodiment, the first bearing seat 210 may be a sixth bearing seat as shown in fig. 6. The second bearing housing 220 may employ a fifth bearing housing as shown in fig. 5. In the embodiment of the present disclosure, while the gas is supplied by the external gas supply system of the gas suspension compressor 200, the gas in the volute of the gas suspension compressor 200 may also be supplied into the pressure stabilizing cavity 110. The gas pressure in the pressure stabilizing cavity 110 is stable, and energy is saved. Here, the "first inner intake passage" and the "second inner intake passage" refer to the aforementioned "inner intake passage 122". In the embodiment of the present disclosure, after the gas suspension compressor 200 operates stably, the gas refrigerant in the two-stage volute 250 may supply gas into the second pressure stabilizing cavity, and at this time, the flow channel 232 may also circulate the gas refrigerant in the second pressure stabilizing cavity to the first pressure stabilizing cavity, so as to keep the balance of the gas pressures in the first pressure stabilizing cavity and the second pressure stabilizing cavity consistent.

In some embodiments, the air suspension compressor 200 further comprises a first internal valve and/or a second internal valve. The first inner valve is arranged on the first inner air inlet channel; the second inner valve is disposed on the second inner intake passage 122. The flow of gas from the inner cavity of the volute of the gas suspension compressor 200 into the plenum chamber 110 is regulated. Wherein, the "first inner valve" and the "second inner valve" refer to the aforementioned "inner valve 151".

In some embodiments, the air suspension compressor 200 further comprises a first inner two valve and/or a second inner two valve. The first inner valve is arranged on the first communication channel; the second internal valve is disposed on the second communication passage. And adjusting the gas flow between the first pressure stabilizing cavity and the second pressure stabilizing cavity. The term "first internal valve" and "second internal valve" refers to the aforementioned "internal valve 152".

In some embodiments, a first notch 103 communicating with the first pressure stabilizing cavity is provided on the inner end surface 102 of the first bearing seat 210 connected to the housing 230, and a first flange protruding in the axial direction of the first bearing seat 210 is provided on the edge of the first notch 103; the first end surface of the housing 230 is provided with a first groove, and the first groove is matched with the first flange. A second notch 103 communicated with the second pressure stabilizing cavity is arranged on an inner end surface 102 of the second bearing seat 220 connected with the shell 230, and a second flange protruding along the axial direction of the second bearing seat 220 is arranged on the edge of the second notch 103; a second groove is provided on the second end face of the housing 230, and the second groove is adapted to the second flange. The "first notch 103" and the "second notch 103" refer to the aforementioned "notch 103", the "first flange" and the "second flange" refer to the aforementioned "flange 104", and the "first groove" and the "second groove" refer to the aforementioned "groove 231".

In some embodiments, one end of the first communication passage is provided to the first flange; one end of the second communicating channel is arranged on the second flange. The sealing performance is increased. See the bearing housing shown in fig. 4-6.

In some embodiments, the air suspension compressor 200 further includes a first pressure stabilizing box disposed in the first pressure stabilizing cavity, the first pressure stabilizing box having a first accommodating cavity, the first accommodating cavity being respectively communicated with the first external air inlet channel, the first air outlet channel and the first communication channel; and the second pressure stabilizing box is arranged in the second pressure stabilizing cavity, and is provided with a second accommodating cavity which is communicated with the second air outlet channel and the second communication channel respectively. The "first surge tank" and the "second surge tank" refer to the aforementioned "surge tank 160", and the structure thereof may refer to the structure of the "surge tank 160" in the bearing housing embodiment.

In some embodiments, when the first bearing housing 210 includes a first inner intake passage, the first plenum chamber communicates with the first inner intake passage; when the second bearing housing 220 includes the second inner intake passage 122, the second surge tank communicates with the second inner intake passage 122.

In some embodiments, the gas suspension compressor 200 further includes a plurality of pressure detection devices (not shown) respectively disposed in the first pressure maintaining cavity (or the first receiving cavity) and the second pressure maintaining cavity (or the second receiving cavity) and configured to detect gas pressures in the first pressure maintaining cavity (or the first receiving cavity) and the second pressure maintaining cavity (or the second receiving cavity). The number of the pressure detection devices is two or more, so that the pressure detection devices can be arranged in each pressure stabilizing cavity 110. When the number of the pressure sensors in the first pressure stabilizing cavity or the second pressure stabilizing cavity is multiple, whether the gas pressure in the pressure stabilizing cavity 110 is uniform and stable can be judged by comparing the pressure values of the pressure sensors.

The embodiment of the present disclosure provides a refrigeration device, including the gas suspension compressor 200 of any one of the embodiments described above.

In the embodiment of the present disclosure, optionally, the refrigeration device includes an air conditioner and a refrigerator.

In the refrigeration equipment of the embodiment of the disclosure, the pressure stabilizing cavity 110 is additionally arranged in the air suspension compressor 200, and the pressure stabilizing function is built in, so that the complexity of an air supply system can be reduced.

Referring to fig. 1 to 15, an embodiment of the present disclosure provides an air supply system of an air suspension compressor 200, which includes a pumping device 310, an input end of which is connected to a gaseous refrigerant in a refrigeration system of the air suspension compressor 200, and an output end of which is communicated with an air bearing air supply port of the air suspension compressor 200. The air suspension compressor 200 includes a first bearing housing 210 and a second bearing housing 220, and each of the first bearing housing 210 and the second bearing housing 220 includes a body 100, an outer air inlet channel 121, and an air outlet channel 130. A pressure stabilizing cavity 110 is arranged on the body 100; the outer air inlet channel 121 is arranged on the body 100, one end of the outer air inlet channel 121 is communicated with the pressure stabilizing cavity 110, and the other end is communicated with an air bearing air supply port of the air suspension compressor 200; the air outlet channel 130 is disposed in the body 100, is communicated with the pressure maintaining cavity 110, and is configured to output air from the pressure maintaining cavity 110 to a gap of the air bearing of the air suspension compressor 200.

In the air supply system of the air suspension compressor 200 according to the embodiment of the present disclosure, the first bearing seat 210 and the second bearing seat 220 in the air suspension compressor 200 may be bearing seats including the outer air inlet channel 121 in the aforementioned bearing seat embodiments. That is, the number of the gas bearing gas supply ports of the aero-levitation compressor 200 is two, and the two gas bearing gas supply ports are located at both ends of the aero-levitation compressor 200. The output ends of the pumping devices 310 are respectively communicated with two gas bearing gas supply ports of the air suspension compressor 200. A first gas bearing gas supply port 211 and a second gas bearing gas supply port 212 as shown in fig. 15.

In some embodiments, the gas bearing gas supply port of the aero-levitation compressor 200 may be a port of the outer gas inlet channel 121, or the gas bearing gas supply port may be disposed on the housing 230 opposite the port of the outer gas inlet channel 121. Both of these cases are understood to mean that the outer inlet channel 121 communicates with the gas bearing gas supply port of the aero-levitation compressor 200. It is determined according to the structure and assembly manner of the housing 230 of the air suspension compressor 200.

Alternatively, the first bearing seat 210 may employ the bearing seat described above with reference to fig. 1 or 3.

Alternatively, the second bearing housing 220 may employ the bearing housing described above with reference to fig. 1 or 3.

In the air supply system of the air suspension compressor 200 according to the embodiment of the present disclosure, the pressure stabilizing cavity 110 is disposed in the air suspension compressor 200, and the gaseous refrigerant in the refrigeration system in which the air suspension compressor 200 is located is pressurized by the pumping device 310, and then directly conveyed into the first pressure stabilizing tank in the first bearing block 210 and the second pressure stabilizing tank in the second bearing block 220 of the air suspension compressor 200, and then conveyed into the gap of the air bearing. The air supply system can omit external pressure stabilizing equipment such as an air supply tank and the like, thereby simplifying an air supply pipeline and reducing the complexity.

In some embodiments, the pumping device 310 comprises a compressor. The compressor can be a conventional compressor, and the gaseous refrigerant is effectively pressurized.

In some embodiments, the air supply system further comprises a filtering device (not shown) disposed on the pipeline at the input end of the pumping device 310. In this embodiment, the filtering device may be a filter that filters impurities in the gas refrigerant.

Optionally, the filtration device employs a cyclonic centrifuge device. The solid and liquid impurities in the gas refrigerant are effectively removed. The liquid impurities refer to refrigerant liquid drops mixed in the gas refrigerant, so that the mixing of liquid is reduced, the supercharging effect of the pumping device 310 (compressor) can be improved, the damage of the liquid refrigerant to the pumping device 310 and the gas bearing is reduced, and the service life is prolonged.

In the embodiment of the present disclosure, for more detailed descriptions of the air suspension compressor 200 and the structures of the first bearing seat 210, the second bearing seat 220, the housing 230, and the like included in the air suspension compressor, reference may be made to the descriptions of the corresponding bearing seat embodiments and the embodiments of the air suspension compressor 200, and no further description is given here.

Referring to fig. 1 to 16, an embodiment of the present disclosure provides an air supply system of an air suspension compressor 200, which includes a pumping device 310, an input end of which is connected to a gaseous refrigerant in a refrigeration system of the air suspension compressor 200, and an output end of which is communicated with an air bearing air supply port of the air suspension compressor 200. The air suspension compressor 200 includes a first bearing housing 210, a second bearing housing 220, and a housing 230. A first pressure stabilizing cavity, a first outer air inlet channel, a first communication channel and a first air outlet channel are arranged on the first bearing seat 210, one end of the first outer air inlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first outer air inlet channel is communicated with an air bearing air supply port of the air suspension compressor 200; one end of the first air outlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first air outlet channel is arranged to output air from the first pressure stabilizing cavity to the gap of the air bearing of the air suspension compressor 200. A second pressure stabilizing cavity, a second communicating channel and a second gas outlet channel are arranged on the second bearing seat 220, one end of the second gas outlet channel is communicated with the second pressure stabilizing cavity, and the other end of the second gas outlet channel is arranged to output gas into the gap of the gas bearing of the gas suspension compressor 200 from the second pressure stabilizing cavity. The housing 230 is disposed between the first bearing housing 210 and the second bearing housing 220, and is provided thereon with a flow passage 232, two ends of the flow passage 232 are respectively communicated with the first communication passage of the first bearing housing 210 and the second communication passage of the second bearing housing 220.

In the air supply system of the air suspension compressor 200 according to the embodiment of the present disclosure, the first bearing seat 210 in the air suspension compressor 200 adopts the bearing seat including the outer air inlet passage 121 and the communication passage 140 in the foregoing bearing seat embodiment. The bearing seat used for the second bearing seat 220 only needs to include the structures of the surge tank 110 and the communication passage 140, and does not include the outer intake passage 121, but does not exclude the structure including the inner intake passage 122. That is, in the embodiment of the present disclosure, the number of the gas bearing gas supply ports of the aero-levitation compressor 200 is one, and the gas bearing gas supply ports are located on the first bearing seat 210 side of the aero-levitation compressor 200, for example, on the first-stage volute 240 side of the aero-levitation compressor 200. The output of the pumping device 310 is in communication with a gas bearing gas supply port of the aero-levitation compressor 200. Such as the first gas bearing supply port 211 shown in figure 16.

Alternatively, the first bearing housing 210 may employ the bearing housing described above with reference to fig. 4 or 6.

Alternatively, the second bearing housing 220 may employ the bearing housing described above with reference to fig. 5 or 14.

In the air supply system of the air suspension compressor 200 according to the embodiment of the present disclosure, the pressure stabilizing cavity 110 is built in the air suspension compressor 200, and the gaseous refrigerant in the refrigeration system in which the air suspension compressor 200 is located is pressurized by the pumping device 310, and then is directly conveyed to the first pressure stabilizing cavity (or the first accommodating cavity of the first pressure stabilizing box) in the first bearing seat 210 of the air suspension compressor 200, and is then conveyed to the second pressure stabilizing cavity (or the second accommodating cavity of the second pressure stabilizing box) of the second bearing seat 220 through the flow channel on the casing 230, so that the gaseous refrigerant is conveyed to the gaps between the air bearings on both sides of the air suspension compressor 200. The air supply system can omit external pressure stabilizing equipment such as an air supply tank and the like, thereby simplifying an air supply pipeline and reducing the complexity.

As shown in fig. 1 to 16, an embodiment of the present disclosure provides a refrigeration system including an air supply system of the air suspension compressor 200 of any one of the foregoing embodiments.

The refrigeration system of the embodiment of the present disclosure includes a gas suspension compressor 200, 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 cycle loop is also provided with a one-way valve, a flow control device (electric ball valve), a filter, a fluid monitoring device and other structural components, and the arrangement positions can be referred to fig. 15 and 16, which are not described again.

In the refrigeration system of the embodiment of the present disclosure, a pressure stabilizing cavity 110 is built in the air suspension compressor 200, and the gaseous refrigerant in the refrigeration system in which the air suspension compressor 200 is located is pressurized by the pumping device 310, then directly conveyed into the pressure stabilizing cavity 110 of the air suspension compressor 200, and then conveyed into the gaps of the gas bearings on the two sides of the air suspension compressor 200 after being stabilized in pressure. The air supply system can omit external pressure stabilizing equipment such as an air supply tank and the like, so that the air supply pipeline is simplified, and the complexity of the refrigeration system is further reduced.

In some embodiments, the refrigeration system further comprises a condenser 320; the input of the pumping device 310 in the air supply system is in communication with the condenser 320 to pump the gaseous refrigerant in the condenser 320 to the air bearing supply port of the aero-levitation compressor 200.

Alternatively, the number of gas bearing gas supply ports of the aero-levitation compressor 200 is two (as shown in the aero-levitation compressor 200 of fig. 12). The input end of the pumping device 310 in the air supply system is communicated with the condenser 320, and the gaseous refrigerant in the condenser 320 is pumped to the outer air inlet channel 121 of the first bearing seat 210 and the second bearing seat 220 of the air suspension compressor 200. While supplying gas to the gas bearings at both ends of the gas suspension compressor 200.

Alternatively, the gas bearing gas supply port of the aero-levitation compressor 200 is one (as shown in the aero-levitation compressor 200 of fig. 13). The input end of the pumping device 310 in the air supply system is communicated with the condenser 320, and the gaseous refrigerant in the condenser 320 is pumped into the first outer air inlet channel of the first bearing seat 210 of the air suspension compressor 200.

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

1. A gas suspension compressor, comprising:

the bearing comprises a first bearing seat, a second bearing seat and a third bearing seat, wherein a first pressure stabilizing cavity, a first outer air inlet channel, a first communication channel and a first air outlet channel are arranged on the first bearing seat; one end of the first air outlet channel is communicated with the first pressure stabilizing cavity, and the other end of the first air outlet channel is arranged to output air from the first pressure stabilizing cavity to the gap of the air bearing of the air suspension compressor;

the second bearing seat is provided with a second pressure stabilizing cavity, a second communicating channel and a second gas outlet channel, one end of the second gas outlet channel is communicated with the second pressure stabilizing cavity, and the other end of the second gas outlet channel is used for outputting gas into a gap of the gas bearing of the gas suspension compressor from the second pressure stabilizing cavity;

the shell is arranged between the first bearing seat and the second bearing seat, a flow passage is arranged on the shell, one end of the flow passage is communicated with the first pressure stabilizing cavity through the first communicating channel, and the other end of the flow passage is communicated with the second pressure stabilizing cavity through the second communicating channel.

2. The gas suspension compressor according to claim 1,

the first bearing seat further comprises: the first inner air inlet channel is arranged for inputting air into the first pressure stabilizing cavity from an inner cavity of a first-stage volute of the air suspension compressor; and/or the presence of a gas in the gas,

the second bearing seat further comprises: and the second inner air inlet channel is set to input air into the second pressure stabilizing cavity from an inner cavity of a two-stage volute of the air suspension compressor.

3. The air-suspension compressor of claim 2, further comprising:

the first inner valve is arranged on the first inner air inlet channel; and/or the presence of a gas in the gas,

and the second inner valve is arranged on the second inner air inlet channel.

4. The air-suspension compressor of claim 1, further comprising:

the first inner two valves are arranged on the first communication channel; and/or the presence of a gas in the gas,

and the second inner two valves are arranged on the second communication channel.

5. The gas suspension compressor according to claim 1,

a first gap communicated with the first pressure stabilizing cavity is formed in the inner end face, connected with the shell, of the first bearing seat, and a first flange protruding in the axial direction of the first bearing seat is arranged on the edge of the first gap; a first groove is formed in the first end face of the shell and is matched with the first flange;

a second gap communicated with the second pressure stabilizing cavity is formed in the inner end face, connected with the shell, of the second bearing seat, and a second flange protruding in the axial direction of the second bearing seat is arranged on the edge of the second gap; and a second groove is arranged on the second end face of the shell and is matched with the second flange.

6. The gas suspension compressor according to claim 5,

one end part of the first communication channel is arranged on the first flange;

one end part of the second communication channel is arranged on the two flanges.

7. The air-suspension compressor of claim 1, further comprising:

the first pressure stabilizing box is arranged in the first pressure stabilizing cavity, and is provided with a first accommodating cavity which is respectively communicated with the first outer air inlet channel, the first air outlet channel and the first communication channel;

and the second pressure stabilizing box is arranged in the second pressure stabilizing cavity, and is provided with a second accommodating cavity which is respectively communicated with the second air outlet channel and the second communication channel.

8. The gas suspension compressor as recited in claim 7,

when the first bearing seat comprises a first inner air inlet channel, the first pressure stabilizing box is communicated with the first inner air inlet channel;

when the second bearing seat comprises a second inner air inlet passage, the second surge tank is communicated with the second inner air inlet passage.

9. The air-suspension compressor of claim 1, further comprising: and the pressure detection devices are respectively arranged in the first pressure stabilizing cavity and the second pressure stabilizing cavity and are configured to detect the gas pressure in the first pressure stabilizing cavity and the second pressure stabilizing cavity.

10. Refrigeration plant, characterized in that it comprises a gas suspension compressor according to any one of claims 1 to 9.