CN216077623U

CN216077623U - Centrifugal compressor

Info

Publication number: CN216077623U
Application number: CN202023272758.0U
Authority: CN
Inventors: 张正雄
Original assignee: Shanghai Yingfei Energy Technology Co ltd
Current assignee: Shanghai Lianfeng Gas Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-03-18
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a centrifugal compressor, comprising: the driving assembly comprises a shell, a stator arranged in the cavity of the shell and a rotor arranged in the center of the cavity of the shell and connected with the shell in a rotating way; the compressor assembly comprises a machine body arranged at the transmission end of the driving assembly, an air cylinder arranged in the inner cavity of the machine body, and an impeller arranged in the center of the air cylinder and connected with a rotor of the driving assembly; the cooling assembly comprises a cooling disc arranged at the bottom of the machine body and a cooling column arranged on the cooling disc and inserted into the machine body; wherein, a water circulation pipeline is arranged in the cooling assembly, and heat of the device is taken away by injecting heat-conducting medium into the water circulation pipeline; according to the utility model, the compressor assembly also comprises the water-cooling jacket arranged on the outer side of the cylinder, so that the cylinder is favorably cooled, and the normal operation of the cylinder is maintained; the annular main circulating pipe is arranged in the cooling disc and is communicated with the cooling column, so that the cooling disc is cooled.

Description

Centrifugal compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to a centrifugal compressor.

Background

The centrifugal compressor is also called as a "vortex-type compressor". The structure and the operation principle are similar to those of a centrifugal blower, but the centrifugal blower is always multi-stage, so that the gas can obtain higher pressure, the treatment capacity is higher, and the efficiency is higher. A turbo compressor with exhaust pressure higher than 0.015 mpa and gas flow mainly in the radial direction, also called radial compressor. Discharge pressure below 0.2 MPa, commonly known as centrifugal blowers. Centrifugal compressors are widely used in various process flows for conveying air, various process gases or mixtures of gases and for increasing the pressure thereof. The industry often names the applications or types of gases, such as blast furnace blowers and ammonia centrifugal compressors. The heat can be released when the gas is compressed, the normal operation of the compressor can be influenced, the cooling of the multiple compressors in the prior art is mainly concentrated on a compression cylinder, the temperature rise at the exhaust pipe of the compressor is neglected, and the generated temperature difference can influence the air tightness and the service performance of the device, so that the centrifugal compressor is provided.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a centrifugal compressor which solves the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a centrifugal compressor comprising:

the driving assembly comprises a shell, a stator arranged in the cavity of the shell and a rotor arranged in the center of the cavity of the shell and connected with the shell in a rotating way;

the compressor assembly comprises a machine body arranged at the transmission end of the driving assembly, an air cylinder arranged in the inner cavity of the machine body, and an impeller arranged in the center of the air cylinder and connected with a rotor of the driving assembly;

the cooling assembly comprises a cooling disc arranged at the bottom of the machine body and a cooling column arranged on the cooling disc and inserted into the machine body;

wherein, be provided with the water circulating pipe in the cooling module, take away the heat of device through inciting somebody to action heat-conducting medium injection water circulating pipe.

Preferably, the compressor assembly further comprises a water-cooling jacket mounted outside the cylinder.

Preferably, the top of the machine body is provided with an air inlet, the bottom of the machine body is provided with an air outlet, and the rotation directions of the air outlet and the air inlet impeller are arranged tangentially.

Preferably, an annular main circulating pipe is arranged in the cooling disc and is communicated with the cooling column.

Preferably, a spiral capillary circulation pipe is arranged in the cooling column, and a water inlet and a water outlet of the capillary circulation pipe are communicated with the main circulation pipe.

Preferably, the upper portion of the cooling column is symmetrically provided with clamping devices, each clamping device comprises an accommodating frame embedded in the upper portion of the cooling column, a steel ball installed in the accommodating frame and a spring arranged in an inner cavity of the accommodating frame, and the diameter of the opening of the accommodating frame is smaller than that of the steel ball.

Compared with the prior art, the utility model has the following beneficial effects: the compressor assembly further comprises a water cooling jacket arranged on the outer side of the air cylinder, so that the air cylinder is cooled, and the normal operation of the air cylinder is maintained; the top of the machine body is provided with the air inlet, the bottom of the machine body is provided with the air outlet, and the rotation directions of the air outlet and the air inlet impeller are tangentially arranged, so that smooth air inlet and air exhaust is facilitated, and energy loss is reduced; an annular main circulating pipe is arranged in the cooling disc and is communicated with the cooling column, so that the cooling disc is favorably cooled; the spiral capillary circulation pipe is arranged in the cooling column, and the water inlet and the water outlet of the capillary circulation pipe are communicated with the main circulation pipe, so that the integral cooling of the cooling column is facilitated; the clamping devices are symmetrically arranged on the upper portion of the cooling column, so that the pre-fixing is facilitated when the cooling assembly is installed, and the installation of the device is facilitated.

Drawings

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

FIG. 1 is an installation view of the present invention;

FIG. 2 is a block diagram of the cooling assembly of the present invention;

FIG. 3 is a structural view of a main circulation pipe of the present invention;

FIG. 4 is a view of the cooling column of the present invention.

In the figure: 100. the device comprises a driving assembly, 110, a shell, 120, a stator, 130, a rotor, 200, a compressor assembly, 210, a machine body, 220, a cylinder, 230, an impeller, 240, a water-cooling jacket, 300, a cooling assembly, 310, a cooling disc, 310a, a main circulating pipe, 320, a cooling column, 320a, a capillary circulating pipe, 321, a clamping device, 321a, an accommodating frame, 321b, a steel ball, 321c and a spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

The utility model provides a centrifugal compressor, which can effectively improve the heat dissipation effect of an air outlet end of a device, so that the service life of the device is prolonged, and the influence of temperature difference on the device is reduced.

Fig. 1 to 4 are schematic structural views showing an embodiment of a centrifugal compressor according to the present invention, and referring to fig. 1 to 4, a centrifugal compressor according to the embodiment includes a main body portion including a driving assembly 100, a compressing assembly and a cooling assembly 300.

The driving assembly 100 is used for providing power for the compressor assembly 200, specifically, the driving assembly 100 includes a housing 110, a stator 120 installed in an inner cavity of the housing 110, and a rotor 130 installed in the center of the inner cavity of the housing 110 and rotationally connected to the housing 110, when in use, an output end of the driving assembly 100 is installed with a transmission shaft of the compressor assembly 200, the device is powered on, and the rotor 130 rotates in the inner cavity of the stator 120 under the action of electromagnetic force to drive the transmission shaft of the compressor assembly 200 to rotate, so as to drive the impeller 230 to rotate;

the compressor assembly 200 is used for compressing air, and specifically, the compressor assembly includes a machine body 210 installed at a transmission end of the driving assembly 100, an air cylinder 220 installed in an inner cavity of the machine body 210, and an impeller 230 installed at the center of the air cylinder 220 and connected to a rotor 130 of the driving assembly 100, when in use, the driving assembly 100 provides power to drive the impeller 230 to rotate, so that air is sucked from an air inlet of the compressor assembly, and centrifugal force is generated by the impeller 230 to throw the air into the impeller 230 at the rear side for further compression and acceleration until the air is discharged from an air outlet end of the compressor assembly;

the cooling assembly 300 is used for cooling the exhaust end of the device, and specifically, the cooling assembly 300 includes a cooling plate 310 installed at the bottom of the machine body 210 and a cooling column 320 installed on the cooling plate 310 and inserted into the machine body 210; be provided with the water circulating pipe among the cooling module 300, bring away the heat of device through inciting somebody to action heat-conducting medium injection water circulating pipe, during the use, with cooling module 300 grafting compressor unit 200 exhaust end, and external cooling cycle equipment, cool down cooling module 300 in cooling disc 310 and the cooling column 320 of leading-in cooling module 300 of cooling medium through cooling cycle equipment, will give vent to anger the end temperature reduction, need dismantle cooling module 300 down when needing to be changed, then with new cooling module 300 install can.

The compressor assembly 200 further includes a water cooling jacket 240 installed at the outer side of the cylinder 220, which is beneficial to cooling the cylinder 220 and maintaining the normal operation of the cylinder 220; an air inlet is formed in the top of the machine body 210, an air outlet is formed in the bottom of the machine body 210, and the air outlet and the air inlet impeller 230 are tangentially arranged in the rotating direction, so that smooth air inlet and air outlet is facilitated, and energy loss is reduced; an annular main circulation pipe 310a is arranged in the cooling tray 310, and the main circulation pipe 310a is communicated with the cooling column 320, so that the cooling of the cooling tray 310 is facilitated; the cooling column 320 is internally provided with a spiral capillary circulation tube 320a, and the water inlet and the water outlet of the capillary circulation tube 320a are communicated with the main circulation tube 310a, so that the integral cooling of the cooling column 320 is facilitated; the upper portion of the cooling column 320 is symmetrically provided with clamping devices 321, each clamping device 321 comprises an accommodating frame 321a embedded in the upper portion of the cooling column 320, a steel ball 321b installed in the accommodating frame 321a and a spring 321c arranged in an inner cavity of the accommodating frame 321a, the diameter of an opening of the accommodating frame 321a is smaller than that of the steel ball 321b, when the cooling column 320 is used, the cooling column is pushed into an installation clamping groove of the machine body 210, the steel ball 321b extrudes the spring 321c to shrink, the spring 321c provides a support to support the steel ball 321b so as to facilitate the primary clamping of the clamping groove of the machine body 210, the pre-fixing is facilitated when the cooling assembly 300 is installed, and the installation of the device is facilitated.

The working principle is as follows: when the centrifugal compressor is used, the device is firstly powered on, the centrifugal compressor is externally connected with cooling circulation equipment, the driving assembly 100 provides power for the compressor assembly 200 to compress air, a large amount of heat can be generated during air compression, particularly at the position of an air outlet, and at the moment, the circulation cooling equipment injects a heat-conducting medium into a cooling group price at the air outlet end to perform heat exchange with the cooling assembly 300 so as to play a role in cooling the air outlet end of the centrifugal machine.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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, comprising:

the driving assembly (100) comprises a shell (110), a stator (120) arranged in the inner cavity of the shell (110) and a rotor (130) which is arranged in the center of the inner cavity of the shell (110) and is connected with the shell (110) in a rotating way;

the compressor assembly (200) comprises a machine body (210) arranged at the transmission end of the driving assembly (100), a cylinder (220) arranged in the inner cavity of the machine body (210), and an impeller (230) arranged in the center of the cylinder (220) and connected with a rotor (130) of the driving assembly (100);

the cooling assembly (300) comprises a cooling disc (310) arranged at the bottom of the machine body (210) and a cooling column (320) arranged on the cooling disc (310) and inserted into the machine body (210);

wherein, a water circulation pipeline is arranged in the cooling assembly (300), and heat of the device is taken away by injecting heat-conducting medium into the water circulation pipeline.

2. A centrifugal compressor according to claim 1, wherein the compressor assembly (200) further comprises a water-cooled jacket (240) mounted outside the cylinder (220).

3. A centrifugal compressor according to claim 1, wherein the top of the body (210) is provided with an air inlet, the bottom of the body (210) is provided with an air outlet, and the rotation directions of the air outlet and air inlet impellers (230) are arranged tangentially.

4. A centrifugal compressor according to claim 1, characterized in that an annular main circulation pipe (310a) is provided in the cooling plate (310), and the main circulation pipe (310a) communicates with the cooling column (320).

5. A centrifugal compressor according to claim 1, wherein a spiral capillary circulation tube (320a) is provided in the cooling column (320), and a water inlet and a water outlet of the capillary circulation tube (320a) are communicated with the main circulation tube (310 a).

6. The centrifugal compressor is characterized in that the upper part of the cooling column (320) is symmetrically provided with clamping devices (321), each clamping device (321) comprises a containing frame (321a) embedded in the upper part of the cooling column (320), a steel ball (321b) installed in the containing frame (321a) and a spring (321c) arranged in an inner cavity of the containing frame (321a), and the diameter of the opening of the containing frame (321a) is smaller than that of the steel ball (321 b).