CN211231008U - Radial magnetic bearing and stator independent air cooling structure of centrifugal compressor - Google Patents
Radial magnetic bearing and stator independent air cooling structure of centrifugal compressor Download PDFInfo
- Publication number
- CN211231008U CN211231008U CN201922202493.8U CN201922202493U CN211231008U CN 211231008 U CN211231008 U CN 211231008U CN 201922202493 U CN201922202493 U CN 201922202493U CN 211231008 U CN211231008 U CN 211231008U
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- Prior art keywords
- magnetic bearing
- casing
- radial magnetic
- stator
- centrifugal compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to forced air cooling structure field, especially a radial magnetic bearing of centrifugal compressor and the independent air-cooled structure of stator to current in the in-service use, centrifugal compressor time one very easily leads to the inside machine high temperature of centrifugal compressor, has influenced the life of spare part, so can not satisfy the problem of people's demand, the scheme that now proposes, and it includes the casing, the inside of casing is provided with the stator, and the casing both ends are provided with air compressor machine magnetic bearing seat, are provided with radial magnetic bearing on the casing, have seted up waist shape hole (motor fresh air inlet, exhaust vent) on the casing, have seted up round hole (radial magnetic bearing fresh air inlet, exhaust vent) on the casing. The utility model discloses simple structure, convenient operation, the inside temperature of machine that can greatly reduced improves spare part life, effectively raises the efficiency, so satisfied people's demand.
Description
Technical Field
The utility model relates to an air-cooled structure technical field especially relates to a radial magnetic bearing of centrifugal compressor and independent air-cooled structure of stator.
Background
The centrifugal compressor is a compressor in which an impeller applies work to gas to raise the pressure and speed of the gas to complete the transportation of the gas, and the gas flows through the impeller in the radial direction. Centrifugal compressors are also known as turbine compressors: the rotor comprises an impeller and a shaft, wherein the impeller is provided with blades, a balance disc and a part of shaft seal; the main body of the stator is a cylinder, and the stator also comprises a diffuser, a bend, a reflux device, a jet pipe, an exhaust pipe and other devices. The working principle of the centrifugal compressor is as follows: when the impeller rotates at a high speed, the gas is thrown into a diffuser behind the impeller under the action of centrifugal force along with the rotation of the impeller, a vacuum zone is formed at the impeller, and at the moment, external fresh gas enters the impeller. The impeller is continuously rotated and gas is continuously sucked and thrown out, thereby maintaining continuous flow of gas. Compared with a reciprocating compressor, a centrifugal compressor has the following advantages: compact structure, small size and light weight; the exhaust is continuous and uniform, and devices such as a middle tank and the like are not needed; the vibration is small, the easily damaged parts are few, huge and heavy basic parts are not needed, except for the bearing, the interior of the machine does not need to be lubricated, the oil is saved, the compressed gas is not polluted, and the rotating speed is high; the maintenance volume is little, and it is convenient to adjust.
However, in practical use, the temperature of the internal machine of the centrifugal compressor is too high easily due to long time of the centrifugal compressor, which affects the service life of parts and can not meet the requirements of people.
Disclosure of Invention
The utility model aims at solving and having in the prior art in-service use, centrifugal compressor time leads to the inside machine high temperature of centrifugal compressor very easily, has influenced the life of spare part, so can not satisfy the shortcoming of people's demand, and the radial magnetic bearing of centrifugal compressor and the independent air-cooled structure of stator that provide.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the radial magnetic bearing of centrifugal compressor and the independent air-cooled structure of stator, which comprises a housing, the inside of casing is provided with the stator, is provided with air compressor machine magnetic bearing seat on the casing, is provided with radial magnetic bearing on the casing, has seted up waist shape hole on the casing, has seted up the round hole on the casing, has seted up the motor fresh air inlet on the casing, has seted up the motor exhaust vent on the casing, has seted up the magnetic bearing fresh air inlet on the casing, has seted up the magnetic bearing exhaust vent on the casing, can greatly reduced machine inside temperature, improve spare part life, effectively raise the efficiency.
Preferably, the utility model discloses a four ascending round holes in direction in casing both ends correspond the installation with the pore pair of air compressor machine magnetic bearing seat and radial magnetic bearing, and the round hole is convenient for dispel the heat.
Preferably, the stator of the present invention is cooled by a kidney-shaped hole formed on the circumference of the casing.
Preferably, the utility model discloses a radial magnetic bearing cooling method is opened through four directions on the casing has the round hole, and two round holes carry out the forced air cooling for motor fresh air inlet and motor exhaust vent, and the round hole dispels the heat to radial magnetic bearing.
Preferably, the utility model discloses a motor fresh air inlet and motor exhaust vent are waist shape structure hole.
Preferably, the air inlet hole and the air outlet hole of the magnetic bearing of the utility model are circular structural holes.
In the utility model, the radial magnetic bearing of the centrifugal compressor and the stator are of an independent air cooling structure, when in use, the shell is provided with the waist-shaped hole, the stator is arranged in the shell, and the stator is cooled through the waist-shaped hole arranged on the circumference of the shell and is in interference fit with the shell; the round holes in four directions at the two ends of the shell of the utility model are correspondingly arranged with the holes of the air compressor magnetic bearing seat and the radial magnetic bearing; the stator cooling is carried out through a waist-shaped hole formed in the circumference of the shell; the radial magnetic bearing cooling mode is that the circular holes are formed in the shell in four directions, the two circular holes are used for carrying out air cooling on the motor air inlet and the motor air outlet, the two circular holes are mutually independent and do not influence each other, the temperature in the machine is greatly reduced, the service life of parts is prolonged, and the efficiency is effectively improved.
The utility model discloses simple structure, convenient operation, the inside temperature of machine that can greatly reduced improves spare part life, effectively raises the efficiency, can satisfy people's demand.
Drawings
Fig. 1 is a schematic structural view of a radial magnetic bearing and a stator independent air cooling structure of a centrifugal compressor according to the present invention;
fig. 2 is a schematic view of a partial structure of the radial magnetic bearing and the stator independent air cooling structure of the centrifugal compressor of the present invention.
In the figure: the air compressor comprises a shell 1, a stator 2, an air compressor magnetic bearing seat 3, a radial magnetic bearing 4, a kidney-shaped hole 5, a round hole 6, a motor air inlet 7, a motor air outlet 8, a magnetic bearing air inlet 9 and a magnetic bearing air outlet 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, the centrifugal compressor radial magnetic bearing and stator independent air cooling structure comprises a casing 1, a stator 2 is arranged inside the casing 1, an air compressor magnetic bearing seat 3 is arranged on the casing 1, a radial magnetic bearing 4 is arranged on the casing 1, a waist-shaped hole 5 is formed in the casing 1, a round hole 6 is formed in the casing 1, a motor air inlet 7 is formed in the casing 1, a motor air outlet 8 is formed in the casing 1, a magnetic bearing air inlet 9 is formed in the casing 1, a magnetic bearing air outlet 10 is formed in the casing 1, the internal temperature of a machine can be greatly reduced, the service life of parts is prolonged, and the efficiency is effectively improved.
The utility model discloses in, the ascending round hole 6 in four directions in casing 1 both ends corresponds the installation with the pore pair of air compressor machine magnetic bearing seat 3 and radial magnetic bearing 4, and round hole 6 conveniently dispels the heat.
The utility model discloses in, stator 2 cools off through the waist shape hole 5 of opening on the 1 circumference of casing, and waist shape hole 5 just dispels the heat cooling to stator 2.
The utility model discloses in, radial magnetic bearing 4 cooling method is opened through four directions on the casing 1 has round hole 6, and two round holes 6 carry out the forced air cooling for motor fresh air inlet 7 and motor exhaust vent 8, and round hole 6 dispels the heat to radial magnetic bearing 4.
The utility model discloses in, motor fresh air inlet 7 and motor exhaust vent 8 are waist shape structure hole.
In the utility model, the magnetic bearing air inlet 9 and the magnetic bearing air outlet 10 are circular structure holes.
When the utility model is used, the waist-shaped hole 5 is arranged on the casing 1, the stator 2 is arranged in the casing 1, and the stator 2 is cooled through the waist-shaped hole 5 arranged on the circumference of the casing 1 and is in interference fit with the casing, as shown in the figure I, round holes 6 in four directions at two ends of the casing 1 are correspondingly arranged with the holes of the air compressor magnetic bearing seat 3 and the radial magnetic bearing 4, as shown in the figure II, the stator 2 is cooled through the waist-shaped hole 5 arranged on the circumference of the casing 1; the radial magnetic bearing 4 cooling mode is that four directions are opened through casing 1 and are had round hole 6, and two round holes 6 are forced air cooling for motor fresh air inlet 7 and two motor exhaust vents 8 of electricity, and they mutual independence do not influence each other, and greatly reduced machine inside temperature like this improves spare part life, effectively raises the efficiency to can greatly reduced machine inside temperature, improve spare part life, effectively raise the efficiency, so satisfied people's demand.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The centrifugal compressor radial magnetic bearing and stator independent air cooling structure comprises a shell (1) and is characterized in that a stator (2) is arranged inside the shell (1), an air compressor magnetic bearing seat (3) is arranged on the shell (1), a radial magnetic bearing (4) is arranged on the shell (1), a kidney-shaped hole (5) is formed in the shell (1), a round hole (6) is formed in the shell (1), a motor air inlet hole (7) is formed in the shell (1), a motor air outlet hole (8) is formed in the shell (1), a magnetic bearing air inlet hole (9) is formed in the shell (1), and an air outlet hole (10) of the magnetic bearing is formed in the shell (1).
2. The radial magnetic bearing and stator independent air cooling structure of the centrifugal compressor according to claim 1, characterized in that the circular holes (6) in four directions at the two ends of the casing (1) are correspondingly installed with the holes of the air compressor magnetic bearing seat (3) and the radial magnetic bearing (4).
3. The radial magnetic bearing and stator independent air-cooling structure of the centrifugal compressor according to claim 1, characterized in that the stator (2) cooling is performed by eight-directional kidney-shaped holes (5) opened on the circumference of the casing (1).
4. The radial magnetic bearing and stator independent air cooling structure of the centrifugal compressor according to claim 1, wherein the radial magnetic bearing (4) is cooled by forming round holes (6) in four directions on the casing (1), and the two round holes (6) are used for air cooling of a motor air inlet hole (7) and a motor air outlet hole (8).
5. The radial magnetic bearing and stator independent air cooling structure of the centrifugal compressor according to claim 1, wherein the motor air inlet hole (7) and the motor air outlet hole (8) are both kidney-shaped structural holes.
6. The radial magnetic bearing and stator independent air-cooling structure of a centrifugal compressor according to claim 1, characterized in that the magnetic bearing air inlet holes (9) and the magnetic bearing air outlet holes (10) are circular structural holes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922202493.8U CN211231008U (en) | 2019-12-11 | 2019-12-11 | Radial magnetic bearing and stator independent air cooling structure of centrifugal compressor |
| PCT/CN2020/077348 WO2021114489A1 (en) | 2019-12-11 | 2020-02-29 | Radial magnetic bearing and stator independent air cooling structure for centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922202493.8U CN211231008U (en) | 2019-12-11 | 2019-12-11 | Radial magnetic bearing and stator independent air cooling structure of centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231008U true CN211231008U (en) | 2020-08-11 |
Family
ID=71933192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922202493.8U Active CN211231008U (en) | 2019-12-11 | 2019-12-11 | Radial magnetic bearing and stator independent air cooling structure of centrifugal compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN211231008U (en) |
| WO (1) | WO2021114489A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1308315A (en) * | 1969-03-25 | 1973-02-21 | Lucas Industries Ltd | Electrically driven pump |
| CN102322448B (en) * | 2011-09-02 | 2013-02-27 | 西安交通大学 | Cooling structure of motor-driven high-speed centrifugal air compressor |
| KR20180018180A (en) * | 2016-08-12 | 2018-02-21 | 한온시스템 주식회사 | Air blower for vehicle |
| KR101847165B1 (en) * | 2017-04-05 | 2018-04-09 | 주식회사 뉴로스 | Cooling channel structure of turbo blower with airfoil bearing |
| CN107634611A (en) * | 2017-10-18 | 2018-01-26 | 李记东 | Motor with novel cooling structure and include its fluid machinery |
| CN108050085A (en) * | 2017-11-28 | 2018-05-18 | 湖南大学 | A kind of cooling system of air foil bearing supporting air compressor machine |
| CN209340163U (en) * | 2018-12-25 | 2019-09-03 | 珠海格力电器股份有限公司 | Compressor for optimizing internal space |
-
2019
- 2019-12-11 CN CN201922202493.8U patent/CN211231008U/en active Active
-
2020
- 2020-02-29 WO PCT/CN2020/077348 patent/WO2021114489A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2021114489A1 (en) | 2021-06-17 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.99, Jinxin Middle Road, Jiangning District, Nanjing, Jiangsu 210000 Patentee after: Nanjing Cigu Technology Co.,Ltd. Address before: 100 Jiuzhu Road (moling Street), Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu 210000 Patentee before: NANJING CIGU Ltd.,Corp. |
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| CP03 | Change of name, title or address |