CN110374892A - A kind of centrifugal two-stage air compressor of high-speed direct-drive - Google Patents
A kind of centrifugal two-stage air compressor of high-speed direct-drive Download PDFInfo
- Publication number
- CN110374892A CN110374892A CN201910622483.1A CN201910622483A CN110374892A CN 110374892 A CN110374892 A CN 110374892A CN 201910622483 A CN201910622483 A CN 201910622483A CN 110374892 A CN110374892 A CN 110374892A
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- CN
- China
- Prior art keywords
- compressor
- stage
- centrifugal
- rotor
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F04D17/12—Multi-stage 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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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
- F04D29/053—Shafts
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
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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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
The present invention relates to air compressor field, in particular to a kind of centrifugal two-stage air compressor of high-speed direct-drive.Including driving device, two-stage compressor ontology and splined shaft (2), relative to acceleration type centrifugal compressor, the present invention is directly driven using high-speed permanent magnet motor, by splined shaft torsion pass, is not necessarily to speedup, speed increaser is omitted, the power transmission structure for simplifying centrifugal compressor, enables transmission stability enhance, and incipient fault point is reduced, and the power consumption of speed increaser can be saved, improve the operational efficiency of compressor；Two-stage compressor structure is back-to-back form, can balance rotor axial power；Oil system, cooling system etc. are tightly distributed in around motor and compressor, compact-sized, and occupied area is small, effectively save workshop space occupied.
Description
Technical field
The present invention relates to air compressor field, in particular to a kind of centrifugal two-stage air compressor of high-speed direct-drive.
Background technique
Air compressor is widely used, and the every field such as refrigerator, air-conditioning, refrigeration, industry, ship, medicine are all answered
With compressor currently on the market mainly has reciprocating-piston, rotating vane and Rotary screw, in contrast centrifugal compressed
There are many advantages of machine, and the air quantity including covering is in extensive range, high reliablity, structure are simply easy maintenance etc., currently on the market compared with
More centrifugal air compressors is to be driven by conventional motor by gearbox, and efficiency is lower, and fault point is more, and directly expels the heart
The occupied space that air compressor machine can effectively improve efficiency, reduce failure rate, reduce equipment, saves operation cost and maintenance cost
Deng.
Summary of the invention
The present invention is for existing by the way that gear speedup case centrifugal compressor operational efficiency is low, fault point is more, takes up a large area
The shortcomings that, propose a kind of high-speed direct-drive centrifugal air compressor structure.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of centrifugal two-stage air compressor of high-speed direct-drive, which is characterized in that including high-speed permanent magnet motor 1, two-stage pressure
Contracting machine ontology and splined shaft 2；The two-stage compressor ontology includes stage compressor 3, split-compressor 4, compressor drum system
System 6, air intake structure 7 and pipeline and cooler；The stationary part of high-speed permanent magnet motor 1 passes through air intake structure 7 and high-speed permanent magnetic electricity
Machine 1 connects, and the air inlet of stage compressor 3 is entered by air intake structure 7, and the compressed air that stage compressor 3 exports passes through pipeline
It is cooling into cooler, 4 import of split-compressor, the high-speed permanent magnet motor 1 and the two-stage pressure are then entered by pipeline
Contracting machine ontology is connected by splined shaft 2.
The high-speed permanent magnet motor 1 include: rotor 1-1, stator and shell supporting system 1-2, sealing structure 1-3,
Integrated lubrication oil system 1-4, electromotor cooling system 1-5, torsion pass spline housing 1-6；Rotor 1-1 is mounted on stator by bearing
On shell supporting system 1-2, sealing structure 1-3 is mounted on the two sides of bearing block, the disc one with compressor rotor system 6
It rises and forms labyrinth seal；The oil circuit connection of integrated lubrication oil system 1-4 and stator and shell supporting system 1-2, motor cooling system
System 1-5 is connect with 1 shell of high-speed permanent magnet motor, and torsion pass spline housing 1-6 is mounted in the side of rotor by interference fit.
The compressor rotor system 6 is in Middle casing 5.
The both ends of the splined shaft 2 have external splines, respectively with the rotor 1-1 of high-speed permanent magnet motor 1, two stages of compression
The compressor rotor system 6 of machine ontology cooperates torsion pass.
The compressor rotor system 6 includes stage compressor impeller 6-1, split-compressor impeller 6-2 and a pressure
By spline torsion pass, split-compressor impeller 6-2 is passed by end face static friction by contracting machine rotor axis 6-3, stage compressor impeller 6-1
It turns round, compressor rotor shaft 6-3 inner hole has internal spline and splined shaft 2 at one to cooperate torsion pass.
The front end the compressor rotor shaft 6-3 is equipped with retainer ring at one.
Diameter of the both ends of the splined shaft 2 with splined section is greater than middle section diameter.
Comb tooth at two is housed on the air intake structure 7.
Beneficial effects of the present invention: relative to acceleration type centrifugal compressor, the present invention is directly driven using high-speed permanent magnet motor, is led to
Splined shaft torsion pass is crossed, speedup is not necessarily to, speed increaser is omitted, simplifies the power transmission structure of centrifugal compressor, enables stable transmission
Property enhancing, incipient fault point reduces, and can save the power consumption of speed increaser, improve the operational efficiency of compressor；Two-stage pressure
Contracting machine structure is back-to-back form, can balance rotor axial power；Oil system, cooling system etc. be tightly distributed in motor with
Compact-sized around compressor, occupied area is small, effectively saves workshop space occupied.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention
Wherein: 1- high-speed permanent magnet motor, 2- splined shaft, 3- stage compressor, 4- split-compressor, 5- Middle casing, 6-
Compressor rotor system, 7- air intake structure
Fig. 2 is the structural schematic diagram of splined shaft 2
Fig. 3 is the structural schematic diagram of high-speed permanent magnet motor
Wherein: 1-1- rotor, 1-2- stator and shell supporting system, 1-3- sealing structure, 1-4- integrated lubrication oil
System, 1-5- electromotor cooling system, 1-6- torsion pass spline housing
Fig. 4 is the rotor structure schematic diagram of two-stage compressor ontology
Wherein；6-1- stage compressor impeller, 6-2- split-compressor impeller, 6-3- compressor rotor shaft
Specific embodiment
Below with reference to figure, the present invention will be described in detail with example.
As shown in Figure 1, a kind of centrifugal two-stage air compressor of high-speed direct-drive, including high-speed permanent magnet motor 1, two stages of compression
Machine ontology and splined shaft 2；The high-speed permanent magnet motor 1 is connect with the two-stage compressor ontology by splined shaft 2, the two-stage
Compressor body includes stage compressor 3, split-compressor 4, compressor rotor system 6, air intake structure 7 and pipeline and cooling
Device；The stationary part of high-speed permanent magnet motor 1 is connect by air intake structure 7 with high-speed permanent magnet motor 1, the air inlet of stage compressor 3
Entered by air intake structure 7, the compressed air that stage compressor 3 exports enters cooler cooling by pipeline, then passes through pipe
Road enters 4 import of split-compressor, is necessary to determine whether to need to increase cooling procedure before gas supply according to user later, complete whole
The workflow of a compressor.
The high-speed permanent magnet motor 1 include: rotor 1-1, stator and shell supporting system 1-2, sealing structure 1-3,
Integrated lubrication oil system 1-4, electromotor cooling system 1-5, torsion pass spline housing 1-6；Rotor 1-1 is mounted on stator by bearing
On shell supporting system 1-2, sealing structure 1-3 is mounted on the two sides of bearing block, the disc one with compressor rotor system 6
It rises and forms labyrinth seal；The oil circuit connection of integrated lubrication oil system 1-4 and stator and shell supporting system 1-2, motor cooling system
System 1-5 is connect with 1 shell of high-speed permanent magnet motor, and torsion pass spline housing 1-6 is mounted in the side of rotor by interference fit.
The diameter at the both ends with spline of the as shown in Figure 2 splined shaft 2 greater than middle section diameter, so as to the later period plus
Gear shaping or hobbing processes can be used in work.
Comb tooth at two is housed on the air intake structure 7, twice labyrinth seal structure is formed, together for sealing level-one pressure
Air at contracting machine air inlet；Another road is used to seal the excess oil of 2 lubrication of splined shaft.
As shown in figure 3,1 primary structure of high-speed permanent magnet motor includes: that rotor 1-1, stator and shell bearing are
Unite 1-2, sealing structure 1-3, integrated lubrication oil system 1-4, electromotor cooling system 1-5 and torsion pass spline housing 1-6；Its high speed
Permanent magnet machine rotor 1-1 is coupled with compressor rotor shaft 6-3 by splined shaft 2, and such connecting mode loss is small, high-efficient.
1 stationary part of high-speed permanent magnet motor is connect by air intake structure 7 with stator with shell supporting system 1-2.
As shown in figure 4, the compressor rotor system 6 includes stage compressor impeller 6-1, split-compressor impeller 6-2
An and compressor rotor shaft 6-3；Stage compressor impeller 6-1 passes through end by spline torsion pass, split-compressor impeller 6-2
Face static friction torsion pass, armature spindle 6-3 inner hole have internal spline and splined shaft 2 at one to cooperate torsion pass.
The front end the compressor rotor shaft 6-3 is equipped with retainer ring at one, for guaranteeing splined shaft 2 and compressor rotor shaft 6-3
In conjunction with the lubrication of spline.
Relative to acceleration type centrifugal compressor, the present invention is directly driven using high-speed permanent magnet motor, by splined shaft torsion pass, is not necessarily to
Speed increaser is omitted in speedup, simplifies the power transmission structure of centrifugal compressor, transmission stability is enabled to enhance, incipient fault point
It reduces, and the power consumption of speed increaser can be saved, improve the operational efficiency of compressor；Two-stage compressor structure is back-to-back
Form can balance rotor axial power, improve bearing life；Oil system, cooling system etc. are tightly distributed in motor and compression
Compact-sized around machine, occupied area is small, effectively saves workshop space occupied.
Claims (8)
1. a kind of centrifugal two-stage air compressor of high-speed direct-drive, which is characterized in that including high-speed permanent magnet motor (1), two-stage pressure
Contracting machine ontology and splined shaft (2)；The two-stage compressor ontology includes stage compressor (3), split-compressor (4), compressor
Rotor-support-foundation system (6), air intake structure (7) and pipeline and cooler；The stationary part of high-speed permanent magnet motor (1) passes through air intake structure
(7) it is connect with high-speed permanent magnet motor (1), the air inlet of stage compressor (3) is entered by air intake structure (7), stage compressor (3)
The compressed air of outlet enters cooler cooling by pipeline, then enters split-compressor (4) import, the height by pipeline
Fast magneto (1) is connect with the two-stage compressor ontology by splined shaft (2).
2. a kind of centrifugal two-stage air compressor of high-speed direct-drive as described in claim 1, which is characterized in that the high speed is forever
Magneto (1) includes: rotor (1-1), stator and shell supporting system (1-2), sealing structure (1-3), integrated lubrication oil
System (1-4), electromotor cooling system (1-5), torsion pass spline housing (1-6)；Rotor (1-1) by bearing be mounted on stator with
On shell supporting system (1-2), sealing structure (1-3) is mounted on the two sides of bearing block, gets rid of oil with compressor rotor system (6)
Disk is formed together labyrinth seal；The oil circuit connection of integrated lubrication oil system (1-4) and stator and shell supporting system (1-2), electricity
Machine cooling system (1-5) is connect with high-speed permanent magnet motor (1) shell, and torsion pass spline housing (1-6) is mounted in rotor by interference fit
Side.
3. a kind of centrifugal two-stage air compressor of high-speed direct-drive as described in claim 1, it is characterised in that compressor drum
System (6) is in Middle casing (5).
4. a kind of centrifugal two-stage air compressor of high-speed direct-drive as described in claim 1, it is characterised in that the splined shaft
(2) both ends have external splines, respectively with the compression of rotor (1-1), two-stage compressor ontology of high-speed permanent magnet motor (1)
Machine rotor system (6) cooperates torsion pass.
5. a kind of centrifugal two-stage air compressor of high-speed direct-drive as described in claim 1, which is characterized in that the compressor
Rotor-support-foundation system (6) includes stage compressor impeller (6-1), split-compressor impeller (6-2) and a compressor rotor shaft (6-
3), stage compressor impeller (6-1) passes through the torsion pass of end face static friction, compression by spline torsion pass, split-compressor impeller (6-2)
Machine rotor axis (6-3) inner hole has internal spline and splined shaft (2) at one to cooperate torsion pass.
6. a kind of centrifugal two-stage air compressor of high-speed direct-drive as claimed in claim 5, which is characterized in that the compressor
The armature spindle front end (6-3) is equipped with retainer ring at one.
7. a kind of centrifugal two-stage air compressor of high-speed direct-drive as described in claim 1, which is characterized in that the splined shaft
(2) diameter of the both ends with splined section is greater than middle section diameter.
8. a kind of centrifugal two-stage air compressor of high-speed direct-drive as described in claim 1, which is characterized in that the air inlet
Comb tooth at two is housed in structure (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622483.1A CN110374892A (en) | 2019-07-09 | 2019-07-09 | A kind of centrifugal two-stage air compressor of high-speed direct-drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622483.1A CN110374892A (en) | 2019-07-09 | 2019-07-09 | A kind of centrifugal two-stage air compressor of high-speed direct-drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110374892A true CN110374892A (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622483.1A Pending CN110374892A (en) | 2019-07-09 | 2019-07-09 | A kind of centrifugal two-stage air compressor of high-speed direct-drive |
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| CN (1) | CN110374892A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431781A (en) * | 2020-11-24 | 2021-03-02 | 稳力(广东)科技有限公司 | Axial resultant force adjusting method of coaxial two-stage centrifugal or mixed-flow air compressor |
| CN114017385A (en) * | 2021-11-05 | 2022-02-08 | 中国航发沈阳发动机研究所 | Multistage rotor torque transmission structure in gas compressor |
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|---|---|---|---|---|
| CN101504002A (en) * | 2008-02-06 | 2009-08-12 | 株式会社Ihi | Turbo compressor and refrigerator |
| CN102808785A (en) * | 2012-07-19 | 2012-12-05 | 无锡杰尔压缩机有限公司 | Secondary high-speed centrifugal compressor |
| CN102983679A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | In-slot self-cooling high-speed permanent magnetic motor system for compressor |
| CN103306995A (en) * | 2013-05-30 | 2013-09-18 | 西安交通大学 | High-speed direct-driving compressor structure with spline tooth pull rod combined rotor |
| CN103867446A (en) * | 2012-12-07 | 2014-06-18 | 三星泰科威株式会社 | Method for anti-surge controlling of multi-stage compressing system |
| WO2015061767A1 (en) * | 2013-10-25 | 2015-04-30 | Ecomotors Inc. | Retention of a rotor of an electronically-controlled turbomachine |
-
2019
- 2019-07-09 CN CN201910622483.1A patent/CN110374892A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504002A (en) * | 2008-02-06 | 2009-08-12 | 株式会社Ihi | Turbo compressor and refrigerator |
| CN102808785A (en) * | 2012-07-19 | 2012-12-05 | 无锡杰尔压缩机有限公司 | Secondary high-speed centrifugal compressor |
| CN102983679A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | In-slot self-cooling high-speed permanent magnetic motor system for compressor |
| CN103867446A (en) * | 2012-12-07 | 2014-06-18 | 三星泰科威株式会社 | Method for anti-surge controlling of multi-stage compressing system |
| CN103306995A (en) * | 2013-05-30 | 2013-09-18 | 西安交通大学 | High-speed direct-driving compressor structure with spline tooth pull rod combined rotor |
| WO2015061767A1 (en) * | 2013-10-25 | 2015-04-30 | Ecomotors Inc. | Retention of a rotor of an electronically-controlled turbomachine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431781A (en) * | 2020-11-24 | 2021-03-02 | 稳力(广东)科技有限公司 | Axial resultant force adjusting method of coaxial two-stage centrifugal or mixed-flow air compressor |
| CN114017385A (en) * | 2021-11-05 | 2022-02-08 | 中国航发沈阳发动机研究所 | Multistage rotor torque transmission structure in gas compressor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20191025 |