CN104963875B - A kind of vertical small flow high pressure compares centrifugal compressor - Google Patents
A kind of vertical small flow high pressure compares centrifugal compressor Download PDFInfo
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- CN104963875B CN104963875B CN201510381267.4A CN201510381267A CN104963875B CN 104963875 B CN104963875 B CN 104963875B CN 201510381267 A CN201510381267 A CN 201510381267A CN 104963875 B CN104963875 B CN 104963875B
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- compressor
- impeller
- diffuser
- high pressure
- combined type
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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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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of vertical small flow high pressure and compares centrifugal compressor.Compressor drum be arranged vertically within compressor housing and the compressor cap-shaped above compressor housing into cavity center；Drive shaft is fixed on the driving shaft perpendicular to compressor center, shaft end deflection cone and impeller by connecting bolt, and locked by impeller lock pad；Combined type diffuser is made up of vane diffuser and the gradual diffuser two parts of Archimedian screw, combined type diffuser bottom and the flow-guiding channel at shaft end deflection cone composition impeller eye；Diffuser cover plate is located at upper impeller, is assemblied on combined type diffuser, forms the working space of impeller；Stationary seal ring is arranged on compression cover center both sides by sealing fastening bolt；Moving sealing ring is fixed on the driving shaft by Upper shaft sleeve and Lower shaft sleeve.The vertical installation of the present invention, it is compact-sized, save space；Unit entirety is completely closed, required installing space is small, can save installing space, mitigates foundation construction amount.
Description
Technical field
The present invention relates to a kind of compressor, and in particular to a kind of vertical small flow high pressure is applied to than centrifugal compressor
The explosion-proof place of petrochemical industry uses.
Background technology
Small flow high pressure is than compressor generally use positive displacement, Rotary Compressor, but positive displacement, Rotary Compressor
It is complicated, consumable accessory is more, floor space is big, and maintenance load is big；Especially there are pulse, the lubricating oil that running element needs in outlet
Compressed gas easily is mixed into, and cannot be used for high-temperature gas, there is significant limitation.Centrifugal compressor rotating speed is high, structure
Simply, compressed gas without oil, supply continuous-stable, without Circuluting puls, operating is reliable, cycle of oparation is long, maintenance cost
It is low.But existing centrifugal compressor is generally used for the big workplace of capacity.With the rapid development of petrochemical industry, to technique
Parameter request more and more higher, higher requirement is proposed to compressor, it is desirable to be capable of the high pressure ratio of continuous-stable conveying low discharge
The compressor of gas.Existing compressor, it is difficult to meet use demand.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of vertical small flow high pressure ratio that can be applied to petrochemical equipment
Centrifugal compressor.
Realize the technical scheme of the object of the invention：A kind of vertical small flow high pressure is more total than centrifugal compressor, the compressor
Body uses the vertical installation of radial direction subdivision center line, and compressor housing is arranged symmetrically using cylinder, the inlet and outlet flange of compressor
On same horizontal line, outer cloth reinforcement high-strength structure；Compressor drum is arranged vertically within compressor housing and compressor
Compressor cap-shaped above housing into cavity center, compressor drum includes drive shaft, Upper shaft sleeve, Lower shaft sleeve, shaft end water conservancy diversion
Cone, impeller；Wherein, drive shaft is fixed on drive shaft perpendicular to compressor center, shaft end deflection cone and impeller by connecting bolt
On, and it is locked by impeller lock pad；Combined type diffuser is by vane diffuser and the gradual diffuser two of Archimedian screw
Part forms, and combined type diffuser bottom and the flow-guiding channel at shaft end deflection cone composition impeller eye, realizes low flow rate condition
Rectification current stabilization effect；Diffuser cover plate is located at upper impeller, is assemblied on combined type diffuser, and the work for forming impeller is empty
Between；Stationary seal ring is arranged on compression cover center both sides by sealing fastening bolt；Moving sealing ring passes through Upper shaft sleeve and Lower shaft sleeve
Fix on the driving shaft；Stationary seal ring, moving sealing ring, compression cover three cooperatively form a double seals separate cavities.
A kind of vertical small flow high pressure as described above than centrifugal compressor, strengthen by the external cloth of compression case described in it
Muscle structure.
For a kind of vertical small flow high pressure as described above than centrifugal compressor, the seal isolation chamber described in it can be passed through band
Pressure isolation nitrogen, realizes being fully sealed for compressed gas.
A kind of vertical small flow high pressure as described above is than centrifugal compressor, and each part is matched somebody with somebody inside the compressor described in it
Sealed at conjunction using seal washer.
A kind of vertical small flow high pressure as described above is than centrifugal compressor, compressor housing and compressor described in it
Lid is connected by stud.
Effect of the invention is that：For a kind of vertical small flow high pressure of the present invention than centrifugal compressor, its is vertical
Installation, it is compact-sized, save space；Unit entirety is completely closed, required installing space is small, can save installing space, mitigates
Foundation construction amount.The inlet and outlet flange of compressor is arranged symmetrically on same horizontal line, and structural rigidity is strong, thermal shock resistance
Good, external pipe arrangement bearing capacity is high.Installed using radial direction subdivision center line, drive shaft is cleverly arranged vertically within compressor
The heart so that driving bearing has cleverly been dissolved huge centrifugation caused by the high rotating speed rotation of impeller by than more uniform radial load
Power and vibration；Higher working speed can be used, realizes high pressure ratio.It is gradual with Archimedian screw using vane diffuser
The combined type diffuser that diffuser combines, fully can be converted to pressure in less space by the high speed kinetic energy of air-flow
Can, so as to realize higher pressure ratio.Compression cover both sides use double seals, and isolation nitrogen with pressure can be passed through in annular seal space
Gas, being fully sealed for compressed gas is realized, it is preferably to be used for combustible and explosive area conveying hazardous gas.
Brief description of the drawings
Fig. 1 is a kind of structure sectional view of the vertical small flow high pressure of the present invention than centrifugal compressor；
In Fig. 1：1. drive shaft；2. Upper shaft sleeve；3. seal fastening bolt；4. compress cover；5. diffuser cover plate；It is 6. compound
Formula diffuser；7. impeller lock pad；8. shaft end deflection cone；9. connecting bolt；10. impeller；11. compressor housing；12. sealing gasket
Circle；13. stud；14. Lower shaft sleeve；15. stationary seal ring；16. moving sealing ring.
Embodiment
A kind of vertical small flow high pressure of the present invention is made than centrifugal compressor with reference to the accompanying drawings and examples
Further describe.
As shown in figure 1, vertical small flow high pressure, than centrifugal compressor, it includes drive shaft 1, Upper shaft sleeve 2, sealing fastening
Bolt 3, compression cover 4, diffuser cover plate 5, combined type diffuser 6, impeller lock pad 7, shaft end deflection cone 8, connecting bolt 9,
Impeller 10, compressor housing 11, seal washer 12, stud 13, Lower shaft sleeve 14, stationary seal ring 15, moving sealing ring 16 etc..
The compressor totally uses the vertical installation of radial direction subdivision center line, and compressor housing 11 is using cylinder, compressor
Inlet and outlet flange be arranged symmetrically on same horizontal line, outer cloth reinforcement high-strength structure.
Compressor drum is arranged vertically within the sky of the compression formation of cover 4 of compressor housing 11 and the top of compressor housing 11
Chamber center, compressor drum include drive shaft 1, Upper shaft sleeve 2, Lower shaft sleeve 14, shaft end deflection cone 8, impeller 10；Wherein, drive shaft 1
Perpendicular to compressor center, shaft end deflection cone 8 and impeller 10 are fixed in drive shaft 1 by connecting bolt 9, and pass through impeller lock
Tight pad 7 is locked；Prevent from loosening under high rotating speed.
Combined type diffuser 6 is made up of vane diffuser and the gradual diffuser two parts of Archimedian screw, combined type
The bottom of diffuser 6 forms the flow-guiding channel at impeller eye with shaft end deflection cone 8, realizes that the rectification current stabilization of low flow rate condition is made
With；
Diffuser cover plate 5 is located at the top of impeller 10, is assemblied on combined type diffuser 6, forms the working space of impeller；
Compression cover 4 is arranged in the top of compressor, and stationary seal ring 15 is arranged on compression cover by sealing fastening bolt 3
4 centers both sides；Moving sealing ring 16 is fixed in drive shaft 1 by Upper shaft sleeve 2 and Lower shaft sleeve 14.Stationary seal ring 15, moving sealing ring
16th, the compression three of cover 4 cooperatively forms a double seals separate cavities.Seal isolation chamber can be passed through isolation nitrogen with pressure, real
Existing compressed gas is fully sealed.
Sealed inside described compressor at each part cooperation using seal washer 12.
Described compressor housing 11 and compression cover 4 is connected by stud 13.
By implementing above-mentioned technical proposal measure, the vertical small flow high pressure of the present invention realizes rill than centrifugal compressor
Amount, high pressure ratio, explosion-proof, zero leakage；Flow may diminish to 20Nm3/h, be driven and combined type diffuser when passing through gear-box speedup
It is combined, using 36000rpm working speed, when delivery of molecules amount is more than 28 gas, single-stage pressure ratio can reach 6：1 with
On.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification for being made within the spirit and principles of the invention, etc.
With replacement, improvement etc., should be included in the scope of the protection.
Claims (3)
1. a kind of vertical small flow high pressure compares centrifugal compressor, it is characterised in that：The compressor is totally used in radial direction subdivision
The vertical installation of heart line, compressor housing (11) are arranged symmetrically in same level using cylinder, the inlet and outlet flange of compressor
On line, outer cloth reinforcement high-strength structure；
What the compression cover (4) that compressor drum is arranged vertically within above compressor housing (11) and compressor housing (11) was formed
Cavity center, compressor drum include drive shaft (1), Upper shaft sleeve (2), Lower shaft sleeve (14), shaft end deflection cone (8), impeller (10)；
Wherein, drive shaft (1) is fixed on drive perpendicular to compressor center, shaft end deflection cone (8) and impeller (10) by connecting bolt (9)
On moving axis (1), and it is locked by impeller lock pad (7)；
Combined type diffuser (6) is made up of vane diffuser and the gradual diffuser two parts of Archimedian screw, and combined type expands
Depressor (6) bottom and the flow-guiding channel at shaft end deflection cone (8) composition impeller eye, realize that the rectification current stabilization of low flow rate condition is made
With；
Diffuser cover plate (5) is located at impeller (10) top, is assemblied on combined type diffuser (6), forms the working space of impeller；
Stationary seal ring (15) is arranged on compression cover (4) center both sides by sealing fastening bolt (3)；Moving sealing ring (16) passes through
Upper shaft sleeve (2) and Lower shaft sleeve (14) are fixed in drive shaft (1)；
Stationary seal ring (15), moving sealing ring (16), compression cover (4) three cooperatively form a double seals separate cavities；
The described outer cloth reinforcing rib structure of compressor housing (11)；
Described compressor housing (11) and compression cover (4) is connected by stud (13).
2. a kind of vertical small flow high pressure according to claim 1 compares centrifugal compressor, it is characterised in that：Described is close
Envelope separate cavities can be passed through isolation nitrogen with pressure, realize being fully sealed for compressed gas.
3. a kind of vertical small flow high pressure according to claim 1 compares centrifugal compressor, it is characterised in that：Described pressure
Sealed inside contracting machine at each part cooperation using seal washer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381267.4A CN104963875B (en) | 2015-07-02 | 2015-07-02 | A kind of vertical small flow high pressure compares centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381267.4A CN104963875B (en) | 2015-07-02 | 2015-07-02 | A kind of vertical small flow high pressure compares centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104963875A CN104963875A (en) | 2015-10-07 |
| CN104963875B true CN104963875B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510381267.4A Active CN104963875B (en) | 2015-07-02 | 2015-07-02 | A kind of vertical small flow high pressure compares centrifugal compressor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113074124A (en) * | 2021-03-18 | 2021-07-06 | 北京航天石化技术装备工程有限公司 | Vertical centrifugal fan and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2194990Y (en) * | 1994-03-12 | 1995-04-19 | 吴若琨 | Small high-speed centrifugal chlorine gas compressor |
| JPH1089291A (en) * | 1996-09-11 | 1998-04-07 | Tochigi Fuji Ind Co Ltd | Centrifugal compressor |
| CN201025264Y (en) * | 2006-12-18 | 2008-02-20 | 周国强 | A high-pressure and small-flow chlorine compressor |
| CN202597133U (en) * | 2012-06-11 | 2012-12-12 | 重庆江增船舶重工有限公司 | High-speed low-flow centrifugal compressor unit |
| CN204152807U (en) * | 2014-08-30 | 2015-02-11 | 常州福磊石材有限公司 | Natural gas transport centrifugal compressor |
-
2015
- 2015-07-02 CN CN201510381267.4A patent/CN104963875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2194990Y (en) * | 1994-03-12 | 1995-04-19 | 吴若琨 | Small high-speed centrifugal chlorine gas compressor |
| JPH1089291A (en) * | 1996-09-11 | 1998-04-07 | Tochigi Fuji Ind Co Ltd | Centrifugal compressor |
| CN201025264Y (en) * | 2006-12-18 | 2008-02-20 | 周国强 | A high-pressure and small-flow chlorine compressor |
| CN202597133U (en) * | 2012-06-11 | 2012-12-12 | 重庆江增船舶重工有限公司 | High-speed low-flow centrifugal compressor unit |
| CN204152807U (en) * | 2014-08-30 | 2015-02-11 | 常州福磊石材有限公司 | Natural gas transport centrifugal compressor |
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| Publication number | Publication date |
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| CN104963875A (en) | 2015-10-07 |
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| CB02 | Change of applicant information |
Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant after: Beijing Inst. of Aerospace Dynamics Applicant after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant before: Beijing Inst. of Aerospace Dynamics Applicant before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corp. |
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Effective date of registration: 20161202 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant before: Beijing Inst. of Aerospace Dynamics Applicant before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
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