CN114370430A - Guide vane actuating mechanism of cylindrical centrifugal compressor - Google Patents
Guide vane actuating mechanism of cylindrical centrifugal compressor Download PDFInfo
- Publication number
- CN114370430A CN114370430A CN202111632501.8A CN202111632501A CN114370430A CN 114370430 A CN114370430 A CN 114370430A CN 202111632501 A CN202111632501 A CN 202111632501A CN 114370430 A CN114370430 A CN 114370430A
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- gear
- guide vane
- driving
- vane
- centrifugal compressor
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- 230000007246 mechanism Effects 0.000 title claims abstract description 75
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a guide vane actuating mechanism of a barrel-type centrifugal compressor, which is connected with an inlet side end cover through a driving mechanism, wherein a driving gear of a transmission mechanism is connected with the driving mechanism, a gear ring is meshed with the driving gear, a guide vane is connected with a guide vane gear, the guide vane gear is meshed with the gear ring, and the driving mechanism sequentially transmits power to the driving gear and the gear ring of the transmission mechanism and the guide vane gear on the guide vane mechanism so as to drive the guide vane to rotate; the guide vane actuating mechanism provided by the invention is only arranged on the inlet side end cover, and does not influence the structure and the installation of other parts of the compressor, so that the guide vane actuating mechanism has stronger applicability and can be widely applied to various cylindrical centrifugal compressors.
Description
Technical Field
The invention relates to the technical field of barrel type centrifugal compressors, in particular to a guide vane actuating mechanism of a barrel type centrifugal compressor.
Background
The flow rate adjusting method of the centrifugal compressor comprises the following steps: variable speed regulation, bypass regulation, throttle regulation, guide vane regulation, and the like. The variable rotating speed regulation has high efficiency and good economic benefit, but the one-time investment is huge and the equipment is complex; although the bypass adjustment and the throttling adjustment have simple structures and low one-time investment, the efficiency is low and the economical efficiency is poor; the guide vane adjustment has the advantages of low one-time investment, high efficiency and good economic benefit, but due to the limitation of the problems of dynamic and static sealing under high pressure, the guide vane adjustment is only used on centrifugal compressor units with lower relative pressure, non-toxic and harmless medium and micro-leakage permission, such as air compressors, nitrogen compressors and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a guide vane actuating mechanism of a barrel type centrifugal compressor.
A vane actuator for a barrel centrifugal compressor comprising:
the driving mechanism is connected with the inlet side end cover;
the transmission mechanism comprises a driving gear and a gear ring, the driving gear is connected with the driving mechanism, and the gear ring is meshed with the driving gear;
the guide vane mechanism comprises a guide vane and a guide vane gear, the guide vane is connected with the guide vane gear, and the guide vane gear is meshed with the gear ring.
Further, the driving mechanism includes:
a sleeve connected with the inlet side end cover;
and the driving shaft is connected with the driving gear, the driving shaft is connected with the inlet side end cover through the sleeve, and the driving shaft rotates in the sleeve.
Further, the driving mechanism further includes:
the axial bearing is arranged on the inner side of one end, far away from the transmission mechanism, of the sleeve and is movably connected with the driving shaft.
Furthermore, one end of the driving shaft, which is far away from the driving gear, is sleeved with a radial bearing.
Further, a spring energy-gathering ring is arranged in the sleeve, and the opening direction of the spring energy-gathering ring is opposite.
Furthermore, a protective cover is sleeved on the outer side of the radial bearing and connected with the sleeve through a bolt.
Further, one end of the driving shaft, which is far away from the driving gear, is connected with the conversion joint.
Furthermore, a dial is arranged on the outer side of the adapter, a pointer is arranged on the shield, and the free end of the pointer points to the dial.
Further, still include the support, the support pass through the bolt with the inlet side end cover is connected, drive mechanism, stator gear set up the support with between the inlet side end cover, the stator sets up the support outside.
Furthermore, a gear ring connecting seat is arranged on the support and is movably connected with the gear ring, and the gear ring rotates on the gear ring connecting seat.
The invention provides a guide vane actuating mechanism of a barrel-type centrifugal compressor, which is connected with an inlet side end cover through a driving mechanism, wherein a driving gear of a transmission mechanism is connected with the driving mechanism, a gear ring is meshed with the driving gear, a guide vane is connected with a guide vane gear, the guide vane gear is meshed with the gear ring, and the driving mechanism sequentially transmits power to the driving gear and the gear ring of the transmission mechanism and the guide vane gear on the guide vane mechanism so as to drive the guide vane to rotate; the guide vane actuating mechanism provided by the invention is only arranged on the inlet side end cover, and does not influence the structure and the installation of other parts of the compressor, so that the guide vane actuating mechanism has stronger applicability and can be widely applied to various cylindrical centrifugal compressors.
Drawings
FIG. 1 is a schematic structural view of a vane actuator of a barrel type centrifugal compressor in accordance with an exemplary embodiment of the present invention;
FIG. 2 is an enlarged partial view of a vane actuator of a barrel centrifugal compressor in accordance with an exemplary embodiment of the present invention;
fig. 3 is an enlarged schematic view at II of fig. 2.
In the figure: 1-driving shaft, 2-sleeve, 3-driving gear, 4-toothed ring, 5-guide vane gear, 6-guide vane, 7-inlet side end cover, 8-bracket, 9-shield, 10-conversion joint, 11-pointer, 12-dial, 13-radial bearing, 14-axial bearing, 15-spring energy-gathering ring and 16-toothed ring connecting seat.
Detailed Description
In order to overcome the defects in the prior art, the invention provides a guide vane actuating mechanism of a cylindrical centrifugal compressor. In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the preferred embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below by reference are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The following describes embodiments of the present invention in detail.
Referring to fig. 1 and 2, a guide vane actuator of a barrel-type centrifugal compressor comprises a driving mechanism, a transmission mechanism and a guide vane mechanism, wherein the driving mechanism is connected with an inlet side end cover 7; the transmission mechanism comprises a driving gear 3 and a gear ring 4, the driving gear 3 is connected with the driving mechanism, and the gear ring 4 is meshed with the driving gear 3; the guide vane mechanism 3 comprises a guide vane 6 and a guide vane gear 5, the guide vane 6 is connected with the guide vane gear 5, and the guide vane gear 5 is meshed with the gear ring 6.
The power transmission structure provided by the invention can effectively overcome the friction resistance generated by high pressure difference, prevent high-pressure gas from leaking outside and improve the safety and reliability of the compressor; the guide vane actuating mechanism is only arranged on the inlet side end cover 7, and the structure and the installation of other parts of the compressor are not influenced, so that the guide vane actuating mechanism has stronger applicability and can be widely used for various cylindrical centrifugal compressors; meanwhile, the guide vane actuating mechanism is divided into a driving mechanism, a transmission mechanism and a guide vane mechanism, so that the guide vane actuating mechanism is convenient to standardize and serialize.
As a preferred embodiment, the driving mechanism comprises a sleeve 2 and a driving shaft 1, wherein the sleeve 2 is connected with an inlet side end cover 7; the drive shaft 1 is connected with the drive gear 3, the drive shaft 1 is connected with the inlet side end cover 7 through the sleeve 2, and the drive shaft 1 rotates in the sleeve 2. Specifically, in the present embodiment, the sleeve 2 is fixedly connected to the inlet side end cover 7 by bolts, and in other embodiments, the sleeve 2 may be fixedly connected to the inlet side end cover 7 by other means, such as a shaft pin or the like.
As a preferred embodiment, the driving mechanism further comprises an axial bearing 14 disposed inside an end of the sleeve 2 remote from the transmission mechanism, the axial bearing 14 being movably connected to the driving shaft 1. Specifically, in the present embodiment, the axial bearing 14 is an axial self-lubricating bearing, and the frictional resistance is reduced. The axial bearing 14 is an interference fit with the sleeve 2.
As a preferred embodiment, the end of the drive shaft 1 remote from the drive gear 3 is fitted with a radial bearing 13. Specifically, in the present embodiment, the radial bearing 13 is a radial self-lubricating bearing, and the frictional resistance is reduced.
As a preferred embodiment, see fig. 3, a spring energy ring 15 is arranged in the sleeve 2, the openings of the spring energy ring 15 facing in the opposite direction. Specifically, in the present embodiment, the spring energy storage ring 15 is used for sealing, so that good dynamic and static sealing performance can be realized, and the leakage of high-pressure gas can be effectively prevented.
In a preferred embodiment, a shield 9 is sleeved on the outer side of the radial bearing 13, and the shield 9 is connected with the sleeve 2 through bolts. Specifically, in the present embodiment, the radial bearing 13 is interference-fitted with the shroud 9. The protective cover 9 not only has the dustproof function, but also can effectively seal high-pressure gas.
In a preferred embodiment, the end of the drive shaft 1 remote from the drive gear 3 is connected to an adapter 10, and the adapter 10 is used for connecting to an actuator.
In a preferred embodiment, a dial 12 is arranged on the outside of the adapter 10, a pointer 11 is arranged on the cover 9, and the free end of the pointer 11 points to the dial 12. Specifically, in the present embodiment, the dial 12 is fixed to the outside of the adapter 10 by bolts, and the pointer 11 is fixed to the outside of the shield 9 by bolts. Through the arrangement of the dial 12 and the pointer 11, the guide vane executing mechanism has the safety guarantee functions of angle indication, angle limitation, angle positioning and the like, and is convenient for operation, disassembly and assembly maintenance of the guide vane executing mechanism.
As a preferred embodiment, the guide vane actuator further comprises a bracket 8, the bracket 8 is connected with the inlet end cover 7 through a bolt, the transmission mechanism and the guide vane gear 5 are arranged between the bracket 8 and the inlet end cover 7, and the guide vane 6 is arranged outside the bracket 8. Specifically, in the present embodiment, the guide vane 6 is axially connected to the guide vane gear 5 through a guide vane rotating shaft. The support 8 not only has a dustproof function, but also can protect the driving gear 3, the gear ring 4 and the guide vane gear 5, and the safety and reliability of the compressor are improved.
Specifically, a toothed ring connecting seat 16 is arranged on the support 8, the toothed ring connecting seat 16 is movably connected with the toothed ring 4, and the toothed ring 4 rotates on the toothed ring connecting seat 16; a toothed ring connecting seat 16 for movably connecting the toothed ring 4 is arranged on the inner side of the bracket 8, so that the stability of the toothed ring 4 in the rotating process is improved.
According to the invention, the sleeve 2 is arranged on the inlet side end cover 7, the driving shaft 1 is arranged in the sleeve 2, the driving shaft 1 is axially connected with the driving gear 3, the gear ring 4 is meshed with the driving gear 3, the guide vane 6 is axially connected with the guide vane gear 5, and the guide vane gear 5 is meshed with the gear ring 4, so that the driving shaft 1 sequentially transmits power to the gear ring 4 and the guide vane gear 5 through the driving gear 3, and further drives the guide vane 6 to rotate; the guide vane actuating mechanism is only arranged on the inlet side end cover 7, and the structure and the installation of other parts of the compressor are not influenced, so that the guide vane actuating mechanism has stronger applicability and can be widely used for various cylindrical centrifugal compressors; meanwhile, the guide vane actuating mechanism is divided into a driving mechanism, a transmission mechanism and a guide vane mechanism, so that the guide vane actuating mechanism is convenient to standardize and serialize. The bracket 8 has a dustproof function, and can protect the driving gear 3, the gear ring 4 and the guide vane gear 5, so that the safety and reliability of the compressor are improved; a dial 12 is arranged on the outer side of the adapter 10, and a pointer 11 is arranged on the shield 9, so that the guide vane executing mechanism has safety guarantee functions of angle indication, angle limitation, angle positioning and the like, and the guide vane executing mechanism is convenient to operate, disassemble, assemble and maintain.
Therefore, the guide vane actuating mechanism of the barrel type centrifugal compressor provided by the invention has the following advantages:
1. the high-pressure dynamic and static sealing performance is good, and the centrifugal compressor can be widely used for various cylindrical centrifugal compressors;
2. the guide vane actuating mechanism is divided into a driving mechanism, a transmission mechanism and a guide vane mechanism, so that the guide vane actuating mechanism is convenient to standardize and serialize, and the manufacturing cost is low;
3. the guide vane actuating mechanism is installed by only changing the structure of the end cover at the inlet side, has little influence on the structure of the original cylinder type compressor, has stronger applicability and can be widely used for various cylinder type centrifugal compressors;
4. the operation is simple and the maintenance is good.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A vane actuator for a barrel-type centrifugal compressor, comprising:
the driving mechanism is connected with the inlet side end cover;
the transmission mechanism comprises a driving gear and a gear ring, the driving gear is connected with the driving mechanism, and the gear ring is meshed with the driving gear;
the guide vane mechanism comprises a guide vane and a guide vane gear, the guide vane is connected with the guide vane gear, and the guide vane gear is meshed with the gear ring.
2. The vane actuator of a barrel-type centrifugal compressor according to claim 1, wherein the driving mechanism comprises:
a sleeve connected with the inlet side end cover;
and the driving shaft is connected with the driving gear, the driving shaft is connected with the inlet side end cover through the sleeve, and the driving shaft rotates in the sleeve.
3. The vane actuator of a barrel-type centrifugal compressor according to claim 2, wherein the driving mechanism further comprises:
the axial bearing is arranged on the inner side of one end, far away from the transmission mechanism, of the sleeve and is movably connected with the driving shaft.
4. The vane actuator of claim 3, wherein the end of the driving shaft away from the driving gear is sleeved with a radial bearing.
5. The barrel centrifugal compressor vane actuator of claim 4, wherein said sleeve has spring energized rings disposed therein, said spring energized rings having openings facing in opposite directions.
6. The vane actuator of claim 4, wherein a shield is sleeved on the outer side of the radial bearing, and the shield is connected to the sleeve by a bolt.
7. The vane actuator of claim 6 wherein the end of the drive shaft remote from the drive gear is connected to a crossover joint.
8. The vane actuator of a barrel-type centrifugal compressor according to claim 7, wherein a dial is provided outside the adapter, and a pointer is provided on the shield, and a free end of the pointer points to the dial.
9. The vane actuator of a cylinder type centrifugal compressor according to any one of claims 1 to 8, further comprising a bracket, wherein the bracket is connected to the inlet side end cover by a bolt, the transmission mechanism and the vane gear are disposed between the bracket and the inlet side end cover, and the vane is disposed outside the bracket.
10. The vane actuator of claim 9, wherein the bracket is provided with a ring gear connecting seat, the ring gear connecting seat is movably connected with the ring gear, and the ring gear rotates on the ring gear connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632501.8A CN114370430B (en) | 2021-12-28 | 2021-12-28 | Guide vane actuating mechanism of cylindrical centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632501.8A CN114370430B (en) | 2021-12-28 | 2021-12-28 | Guide vane actuating mechanism of cylindrical centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114370430A true CN114370430A (en) | 2022-04-19 |
| CN114370430B CN114370430B (en) | 2024-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111632501.8A Active CN114370430B (en) | 2021-12-28 | 2021-12-28 | Guide vane actuating mechanism of cylindrical centrifugal compressor |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799953A (en) * | 1995-05-25 | 1998-09-01 | American Variseal | Capped spring-energized seal |
| JP2009174458A (en) * | 2008-01-25 | 2009-08-06 | Hitachi Plant Technologies Ltd | Centrifugal compressor |
| JP2011099389A (en) * | 2009-11-06 | 2011-05-19 | Hitachi Plant Technologies Ltd | Centrifugal compressor |
| CN201925076U (en) * | 2011-01-24 | 2011-08-10 | 福建南电股份有限公司 | Pure friction guide vane protective device |
| CN202690536U (en) * | 2012-07-20 | 2013-01-23 | 沈阳鼓风机集团齿轮压缩机有限公司 | Guide vane regulator at entrance of polyolefin circulation air compressor |
| US20140341718A1 (en) * | 2013-05-16 | 2014-11-20 | Toyota Jidosha Kabushiki Kaisha | Variable nozzle turbochargers |
| CN107939739A (en) * | 2017-12-15 | 2018-04-20 | 南通大通宝富风机有限公司 | A kind of monopole centrifugal blower rear guide vane gear torque amplifying device |
| CN209586790U (en) * | 2019-01-16 | 2019-11-05 | 重庆通用工业(集团)有限责任公司 | Flow control device and air blower |
| CN210715220U (en) * | 2019-08-08 | 2020-06-09 | 西安陕鼓动力股份有限公司 | Centrifugal compressor inlet guide vane adjusting device and centrifugal compressor |
| CN111664110A (en) * | 2020-05-25 | 2020-09-15 | 中科澳能(北京)节能技术有限公司 | Compressor inlet guide vane adjusting mechanism and control method thereof |
-
2021
- 2021-12-28 CN CN202111632501.8A patent/CN114370430B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799953A (en) * | 1995-05-25 | 1998-09-01 | American Variseal | Capped spring-energized seal |
| JP2009174458A (en) * | 2008-01-25 | 2009-08-06 | Hitachi Plant Technologies Ltd | Centrifugal compressor |
| JP2011099389A (en) * | 2009-11-06 | 2011-05-19 | Hitachi Plant Technologies Ltd | Centrifugal compressor |
| CN201925076U (en) * | 2011-01-24 | 2011-08-10 | 福建南电股份有限公司 | Pure friction guide vane protective device |
| CN202690536U (en) * | 2012-07-20 | 2013-01-23 | 沈阳鼓风机集团齿轮压缩机有限公司 | Guide vane regulator at entrance of polyolefin circulation air compressor |
| US20140341718A1 (en) * | 2013-05-16 | 2014-11-20 | Toyota Jidosha Kabushiki Kaisha | Variable nozzle turbochargers |
| CN107939739A (en) * | 2017-12-15 | 2018-04-20 | 南通大通宝富风机有限公司 | A kind of monopole centrifugal blower rear guide vane gear torque amplifying device |
| CN209586790U (en) * | 2019-01-16 | 2019-11-05 | 重庆通用工业(集团)有限责任公司 | Flow control device and air blower |
| CN210715220U (en) * | 2019-08-08 | 2020-06-09 | 西安陕鼓动力股份有限公司 | Centrifugal compressor inlet guide vane adjusting device and centrifugal compressor |
| CN111664110A (en) * | 2020-05-25 | 2020-09-15 | 中科澳能(北京)节能技术有限公司 | Compressor inlet guide vane adjusting mechanism and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN114370430B (en) | 2024-03-05 |
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