CN212155204U

CN212155204U - Centrifugal compressor based on air bearing

Info

Publication number: CN212155204U
Application number: CN202020852290.3U
Authority: CN
Inventors: 黄锴; 马惠秋; 杨立青; 李娜娜
Original assignee: Harbin Musen Machinery Manufacturing Co ltd
Current assignee: Harbin Musen Machinery Manufacturing Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-12-15
Anticipated expiration: 2030-05-20

Abstract

The utility model relates to a compressor technical field discloses a centrifugal compressor based on air supporting bearing, including compressor housing, the equal fixedly connected with stator in two parts about the compressor housing inner chamber is located two the compressor housing internal level in the middle of the stator is provided with the rotor, and the equal fixedly connected with axostylus axostyle of both ends face intermediate position is located about the rotor the equal fixedly connected with side end cover in two parts is controlled to compressor housing. The utility model discloses a rotor during operation drives the turbine high-speed rotation of two shaft ends to produce high-pressure air current and discharge from the high-pressure gas outlet on side end cover upper portion, here simultaneously, the impeller of blowing on the axostylus axostyle of the side end cover inner chamber that is located the rotor left side rotates at a high speed, produces the wind regime and blows heat dissipation to the heat dissipation opening in the compressor housing through the through-hole of blowing, and is energy-concerving and environment-protective, and is more high-efficient to the heat dissipation; and the filter screen plate can avoid damage to the turbine caused by external particles and operators.

Description

Centrifugal compressor based on air bearing

Technical Field

The utility model relates to a compressor technical field specifically is a centrifugal compressor based on air supporting bearing.

Background

At present, the centrifugal compressor uses blades rotating at high speed to do work for air so as to improve air pressure, and the main performance parameters of the centrifugal compressor are as follows: the rotating speed, the air flow, the pressure increasing ratio, the efficiency and the like, and the method is widely applied to the fields of industrial production, air circulation refrigeration systems, mine ventilation and the like.

The high-speed centrifugal compressor supported by the air bearing is composed of a shell, a compression turbine, the air bearing and a high-speed motor, wherein the high-speed motor is positioned in the center of the shell, the air bearing is positioned between the two air bearings, the air bearing is positioned in the shell, the highest rotating speed of the air bearing is more than 100000rpm, the working pressure of the air bearing is 4bar, the high-speed motor outputs from the left end and the right end, the compression turbine is arranged on rotors at the two ends of the high-speed motor, and the shell is used for supporting a stator of the high-speed motor and the two air bearings. In the working process, the high-speed motor is supported by the left air bearing and the right air bearing, the rotation resistance is small, the rotation speed is high, the two air bearings are in interference fit with the shell, the sealing performance is good, the two ends of the high-speed motor are output, the rotors at the left end and the right end are provided with the compression turbines, and the flow of compressed gas in unit volume is large.

However, the technical scheme still has at least the following defects:

the middle and later stages of the technical scheme are not only inconvenient to dismantle, but also cannot quickly dissipate heat generated by the compressor, so that the service life is influenced; and the turbine is open, the safety is low, and the turbine is easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centrifugal compressor based on air supporting bearing has solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a centrifugal compressor based on an air bearing comprises a compressor shell, wherein stators are fixedly connected to the upper portion and the lower portion of an inner cavity of the compressor shell, a rotor is horizontally arranged in the compressor shell between the two stators, shaft rods are fixedly connected to the middle positions of the left end face and the right end face of the rotor, side end covers are fixedly connected to the left end face and the right end face of the compressor shell, the air bearing is horizontally and fixedly embedded in the middle of each side end cover, and a filter screen plate is fixedly covered on one end opening portion, far away from the compressor shell, of each side end cover;

the side wall of the compressor shell is provided with a plurality of heat dissipation through holes which are distributed at equal intervals from left to right along the length direction of the side wall of the compressor shell, and the right side surface of a side end cover positioned on the left side of the compressor shell is provided with a plurality of air blowing through holes which are distributed annularly; the shaft levers penetrate through the air bearing in a movable mode, the end faces, far away from the rotor, of the two shaft levers are fixedly connected with turbines through fixing bolts, and blowing impellers are fixedly connected to the shaft levers located at the left end portions of the compressor shells.

As a preferred embodiment of the present invention, the filter screen plate is a stainless steel screen plate with 100 meshes.

As an optimal implementation of the utility model, it is a plurality of the through-hole of blowing communicates with the one-to-one alignment of heat dissipation opening.

As a preferred embodiment of the present invention, the compressor housing is an aluminum alloy member, and the compressor housing and the side end cap are detachably connected by a bolt.

As a preferred embodiment of the utility model, be located the equal vertical high pressure gas outlet of having seted up in side end cap upper portion intermediate position.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a rotor during operation drives the turbine high-speed rotation of two shaft ends to produce high-pressure air current and discharge from the high-pressure gas outlet on side end cover upper portion, here simultaneously, the impeller of blowing on the axostylus axostyle of the side end cover inner chamber that is located the rotor left side rotates at a high speed, produces the wind regime and blows heat dissipation to the heat dissipation opening in the compressor housing through the through-hole of blowing, and is energy-concerving and environment-protective, and is more high-efficient to the heat dissipation; the filter screen plate is arranged, so that damage to the turbine caused by external particles and operators can be avoided; and the bolts of the shell of the compressor and the side end cover are removed when the turbine is overhauled at the later stage.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of a centrifugal compressor based on an air bearing according to the present invention;

fig. 2 is a schematic structural diagram of a left end face of a compressor housing of a centrifugal compressor based on an air bearing according to the present invention;

fig. 3 is a schematic side view of the air bearing of the centrifugal compressor based on the air bearing according to the present invention disposed on the side end cover;

fig. 4 is a schematic side view of a turbine of a centrifugal compressor based on an air bearing according to the present invention.

In the figure: 1. a compressor housing; 2. a rotor; 3. a heat dissipation port; 4. a high pressure gas outlet; 5. a side end cap; 6. a filter screen plate; 7. a blowing impeller; 8. a turbine; 9. a blowing through hole; 10. a stator; 11. an air bearing; 12. a shaft lever; 13. and (5) fixing the bolt.

The utility model provides an instrument all can be through market purchase and private customization acquisition.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a centrifugal compressor based on an air bearing comprises a compressor shell 1, wherein stators 10 are fixedly connected to the upper portion and the lower portion of an inner cavity of the compressor shell 1, a rotor 2 is horizontally arranged in the compressor shell 1 between the two stators 10, shaft rods 12 are fixedly connected to the middle positions of the left end face and the right end face of the rotor 2, side end covers 5 are fixedly connected to the left portion and the right portion of the compressor shell 1, the air bearing 11 is horizontally and fixedly embedded in the middle of each side end cover 5, and a filter screen plate 6 is fixedly covered on one end opening portion, away from the compressor shell 1, of each side end cover 5;

the side wall of the compressor shell 1 is provided with a plurality of heat dissipation through holes 3 which are distributed at equal intervals from left to right along the length direction of the side wall, and the right side surface of a side end cover 5 positioned on the left side of the compressor shell 1 is provided with a plurality of air blowing through holes 9 which are distributed annularly; the shaft levers 12 movably penetrate through the air bearing 11, the end faces, far away from the rotor 2, of the two shaft levers 12 are fixedly connected with turbines 8 through fixing bolts 13, the shaft lever 12, located at the left end of the compressor shell 1, is fixedly connected with an air blowing impeller 7, when the rotor 2 works, the turbines 8 at the end portions of the two shaft levers 12 are driven to rotate at a high speed, so that high-pressure air flow is generated and discharged from a high-pressure air outlet 4 at the upper portion of the side end cover 5, meanwhile, the air blowing impeller 7 on the shaft lever 12, located in the inner cavity of the side end cover 5 at the left side of the rotor 2, generates an air source, and blows air to a heat dissipation through hole 3 in the compressor shell 1; and the filter screen plate 6 can avoid damage to the turbine caused by external particles and operators.

In this embodiment (see fig. 1), the filter screen 6 is a 100-mesh stainless steel screen, so as to ensure the filtering efficiency.

In this embodiment (see fig. 1), the plurality of blowing through holes 9 are communicated with the heat dissipation ports 3 in a one-to-one alignment manner, and the blowing impeller 7 on the shaft rod 12 located in the inner cavity of the side end cover 5 on the left side of the rotor 2 rotates at a high speed to generate an air source to blow and dissipate heat of the heat dissipation ports 3 in the compressor housing 1 through the blowing through holes 9, so that energy conservation and environmental protection are achieved, and the heat dissipation of the compressor is more efficient.

In the embodiment, the compressor shell 1 is an aluminum alloy part, the compressor shell and the side end cover are detachably connected through bolts, the heat conducting performance is good, and the cost is low.

In this embodiment (see fig. 1), the high-pressure air outlets 4 are vertically disposed at the middle positions of the upper portions of the side end caps 5.

When a centrifugal compressor based on air supporting bearing uses, it is required to explain, the utility model relates to a centrifugal compressor based on air supporting bearing, each part is the parts that general standard spare or technical staff in the field know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

When the air-cooling type compressor is used, the rotor 2 drives the turbines 8 at the end parts of the two shaft levers 12 to rotate at a high speed when working, so that high-pressure air flow is generated and discharged from the high-pressure air outlet 4 at the upper part of the side end cover 5, meanwhile, the air blowing impeller 7 on the shaft lever 12 positioned in the inner cavity of the side end cover 5 at the left side of the rotor 2 rotates at a high speed, and a generated air source blows air to dissipate heat of the heat dissipation through hole 3 in the compressor shell 1 through the air blowing through hole 9, so that the air; and the filter screen plate 6 can avoid damage to the turbine caused by external particles and operators.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A centrifugal compressor based on air bearings, comprising a compressor housing (1), characterized in that: stators (10) are fixedly connected to the upper portion and the lower portion of an inner cavity of the compressor shell (1), a rotor (2) is horizontally arranged in the compressor shell (1) between the two stators (10), shaft rods (12) are fixedly connected to the middle positions of the left end face and the right end face of the rotor (2), side end covers (5) are fixedly connected to the left portion and the right portion of the compressor shell (1), an air-floating bearing (11) is horizontally and fixedly embedded in the middle of each side end cover (5), and a filter screen plate (6) is fixedly covered on one end opening portion, far away from the compressor shell (1), of each side end cover (5);

the side wall of the compressor shell (1) is provided with a plurality of heat dissipation through holes (3) which are distributed at equal intervals from left to right along the length direction of the side wall, and the right side surface of a side end cover (5) on the left side of the compressor shell (1) is provided with a plurality of air blowing through holes (9) which are distributed annularly; the shaft rods (12) movably penetrate through the air-floating bearing (11), the end faces, far away from the rotor (2), of the two shaft rods (12) are fixedly connected with turbines (8) through fixing bolts (13), and the shaft rod (12) at the left end of the compressor shell (1) is fixedly connected with a blowing impeller (7).

2. An air bearing based centrifugal compressor as claimed in claim 1, wherein: the filter screen plate (6) is a stainless steel screen plate with 100 meshes.

3. An air bearing based centrifugal compressor as claimed in claim 1, wherein: the plurality of air blowing through holes (9) are communicated with the heat dissipation through holes (3) in a one-to-one alignment mode.

4. An air bearing based centrifugal compressor as claimed in claim 1, wherein: the compressor shell (1) is an aluminum alloy part.

5. An air bearing based centrifugal compressor as claimed in claim 1, wherein: and high-pressure air outlets (4) are vertically formed in the middle of the upper part of the side end cover (5).