CN110067778A - A kind of adjustable diffuser and its refrigeration compressor - Google Patents
A kind of adjustable diffuser and its refrigeration compressor Download PDFInfo
- Publication number
- CN110067778A CN110067778A CN201910489078.7A CN201910489078A CN110067778A CN 110067778 A CN110067778 A CN 110067778A CN 201910489078 A CN201910489078 A CN 201910489078A CN 110067778 A CN110067778 A CN 110067778A
- Authority
- CN
- China
- Prior art keywords
- diffuser
- active
- driven
- shaft
- adjustable
- 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.)
- Granted
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 5
- 241000237858 Gastropoda Species 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- 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
-
- 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
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/60—Control system actuates means
- F05D2270/62—Electrical actuators
Abstract
The invention discloses a kind of adjustable diffuser and its refrigeration compressors, adjustable diffuser includes: the impeller being connected in shaft, the terminal pad for being sleeved on the periphery of impeller and being connected on spiral case inner peripheral surface, the adjustable diffuser also includes active regulating mechanism and driven regulating mechanism, and refrigeration compressor includes above-mentioned adjustable diffuser structure.Stable adjusting can be synchronized to meet the needs of different operating conditions to the angle of blade as the adjustable diffuser of the present invention, improve the working efficiency of diffuser and the stability of diffuser work.The refrigeration compressor for being taken as above-mentioned adjustable diffuser production can also effectively prevent leaking for refrigerant in addition to the stability for improving work efficiency and working.
Description
Technical field
The invention belongs to Compressor Technology field more particularly to a kind of adjustable diffusers and its refrigeration compressor.
Background technique
In centrifugal compressor and air blower, the gas velocity come out from impeller is quite big, and the air-flow of high speed has very big
Kinetic energy increase gas pressure further to make full use of this part kinetic energy, therefore diffusion need to be set at impeller outlet
Device.The structure of diffuser has vaneless diffuser and vane diffuser in the prior art, and vane diffuser is divided into fixed blade
Diffuser, adjustable vane diffuser, vaneless diffuser adaptation condition range is wider, and application is wide, but the effect of vaneless diffuser
Rate is lower, in order to improve extension pressur efficiency, is all made of adjustable blade diffuser in many occasions, full by adjusting blade angle
The demand of foot difference operating condition, but existing adjustable diffuser type often will appear the non-uniform phenomenon of diffuser vane angular adjustment,
It affects to the stability of work, it is often more important that its sealing performance of existing diffuser is usually not ideal enough, is answering
After using refrigeration compressor, the phenomenon that will appear coolant leakage often.
Summary of the invention
To solve the above problems, the present invention proposes a kind of adjustable diffuser and its refrigeration compressor, as
Adjustable diffuser can synchronize stable adjusting to the angle of blade to meet the needs of different operating conditions, improve diffuser
Working efficiency and diffuser work stability.It is taken as the refrigeration compressor of above-mentioned adjustable diffuser production, except mentioning
Except the high stability of working efficiency and work, it can also effectively prevent leaking for refrigerant.
To achieve the goals above, the adjustable diffuser of the present invention uses following scheme, comprising:
The impeller being connected in shaft, the terminal pad for being sleeved on the periphery of impeller and being connected on spiral case inner peripheral surface are described
Adjustable diffuser also includes active regulating mechanism and driven regulating mechanism,
The active regulating mechanism includes the mounting box being sealedly connected on spiral case outer peripheral surface, and the top of mounting box is equipped with
It is connected to its internal through-hole, attachment base is closely embedded in the through-hole above mounting box, and the top seal connection of attachment base is electronic
Actuator, the output end of Electric Actuator connect shaft coupling, the shaft coupling connection gear, the both ends of gear respectively with gear bushing
Clearance fit, the gear bushing of upper end and the through-hole of attachment base lower end are fitted close, bottom in the gear bushing and mounting box of lower end
Blind hole on face is fitted close, and the end-tooth of the gear engagement swing arm right end, the item on spiral case is stretched out in the left end of swing arm
Active diffuser is connected after shape window, which is rotatably coupled to the bottom surface of terminal pad, and swing arm driving is actively
Diffuser clockwise, counter clockwise direction alternate rotation；
The driven regulating mechanism includes connecting the drive ring of active diffuser, which rotates with active diffuser
And rotate, the upper surface of drive ring is uniformly arranged in the circumferential direction several axial through-holes, and it is several that the inner peripheral surface of drive ring rolls connection
Directive wheel, the wheel shaft of directive wheel are circumferentially uniformly connected to the bottom surface of terminal pad, the bottom surface of terminal pad be also rotatablely connected it is several from
Dynamic diffuser, the driven diffuser are distributed on the circular arc in the same center of circle with the active diffuser and circumferentially uniformly set
It sets, driven diffuser connects drive ring and rotates with the rotation of drive ring.
The active diffuser includes active rotating shaft, and the lower end of active rotating shaft is equipped with active guide vane, the upper end of active rotating shaft
Initiatively rocking arm is connected, the end of the initiatively rocking arm and one end of drive connecting rod are rotatablely connected, and the other end of drive connecting rod connects master
The upper surface of dynamic pin shaft, active rotating shaft connects square shaft.
The left end of the swing arm connects active diffuser, is actively to turn the square hole of swing arm left end and active diffuser
The square shaft of axis upper surface is fitted close, and it is at terminal pad bottom that the active diffuser, which is rotatably coupled to the bottom surface of terminal pad,
The through-hole in face is embedded in bushing, and the active rotating shaft and sleeve clearances of active diffuser cooperate, the active diffuser and drive ring
Connection, be to cooperate the via clearance on the active pin shaft of active diffuser and drive ring.
The driven diffuser includes driven spindle, and the lower end of driven spindle is equipped with driven guide vane, the upper end of driven spindle
Connect driven rocker arm, one end of the end of the driven rocker arm and follower link is rotatablely connected, the other end connection of follower link from
Dynamic pin shaft.
The driven diffuser connects drive ring, is by the via clearance on the driven pin shaft of driven diffuser and drive ring
The bottom surface of cooperation, the terminal pad is rotatablely connected driven diffuser, is that the through-hole in terminal pad bottom surface is embedded in bushing, driven expansion
The driven spindle and sleeve clearances of depressor cooperate.
The directive wheel includes wheel shaft, and the deep groove ball bearing being socketed on wheel shaft is threaded in the fastening of wheel shaft upper end
Nut.
The active guide vane, driven guide vane are aerofoil profile.
The active rotating shaft of the active diffuser is equipped with limited block, and the swing angle of limited block limitation active guide vane is less than
20 degree.
The spiral case outer peripheral surface is tightly connected mounting box, is to add gasket between mounting box and the outer peripheral surface of spiral case,
The shaft coupling is socketed O-ring seal.
The invention further relates to a kind of refrigeration compressor, which includes above-mentioned adjustable diffuser structure.
As the adjustable diffuser of the present invention stable adjusting can be synchronized to the angle of blade to meet different operating conditions
Demand, improve diffuser working efficiency and diffuser work stability.It is taken as above-mentioned adjustable diffuser system
The refrigeration compressor of work can also effectively prevent leaking for refrigerant in addition to the stability for improving work efficiency and working.
Detailed description of the invention
Fig. 1 is the adjustable diffuser section view partial structural diagram of the present invention.
Fig. 2 is the adjustable diffuser sectional perspective structural schematic diagram of the present invention.
Fig. 3 is the adjustable diffuser active diffuser schematic perspective view of the present invention.
Fig. 4 is the adjustable driven diffuser schematic perspective view of diffuser of the present invention.
Fig. 5 is the adjustable diffuser directive wheel schematic perspective view of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing, so that those skilled in the art can be more clear
The understanding of Chu.
Include: as the adjustable diffuser of the present invention
As shown in Figure 1 and Figure 2, the impeller 1 being connected in shaft is sleeved on the periphery of impeller and is connected to 2 inner peripheral surface of spiral case
On terminal pad 3, the adjustable diffuser also includes active regulating mechanism and driven regulating mechanism,
The active regulating mechanism includes the mounting box 4 being sealedly connected on spiral case outer peripheral surface, and the top of mounting box is equipped with
It is connected to its internal through-hole, attachment base 5 is closely embedded in the through-hole above mounting box, and the top seal connection of attachment base is electronic
Actuator 6, the output end of Electric Actuator connect shaft coupling 7, the shaft coupling connection gear 8, the both ends of gear respectively with gear
9 clearance fit of bushing, the gear bushing of upper end and the through-hole of attachment base lower end are fitted close, the gear bushing and mounting box of lower end
Blind hole on inner bottom surface is fitted close, and the end-tooth of gear engagement 10 right end of swing arm, spiral case is stretched out in the left end of swing arm
On marking shape window after connect active diffuser, which is rotatably coupled to the bottom surface of terminal pad, and swing arm drives
Dynamic active diffuser clockwise, counter clockwise direction alternate rotation；
The driven regulating mechanism includes connecting the drive ring 11 of active diffuser, which turns with active diffuser
It moves and rotates, the upper surface of drive ring is uniformly arranged in the circumferential direction several axial through-holes, if the inner peripheral surface of drive ring rolls connection
Dry directive wheel 12, the wheel shaft of directive wheel is circumferentially uniformly connected to the bottom surface of terminal pad, if the bottom surface of terminal pad is also rotatablely connected
Do driven diffuser, the driven diffuser and the active diffuser are distributed on the circular arc in the same center of circle and circumferentially uniformly
Setting, driven diffuser connect drive ring and rotate with the rotation of drive ring.
Preferably, as shown in figure 3, the active diffuser includes active rotating shaft 13, the lower end of active rotating shaft is equipped with actively
Guide vane 14, the upper end of active rotating shaft connect initiatively rocking arm 15, and the end of the initiatively rocking arm and one end of drive connecting rod 16 rotate and connect
It connects, the other end of drive connecting rod connects active pin shaft 17, and the upper surface of active rotating shaft connects square shaft 18.
The left end of the swing arm connects active diffuser, is actively to turn the square hole of swing arm left end and active diffuser
The square shaft of axis upper surface is fitted close, and it is at terminal pad bottom that the active diffuser, which is rotatably coupled to the bottom surface of terminal pad,
The through-hole in face is embedded in bushing, and the active rotating shaft and sleeve clearances of active diffuser cooperate, the active diffuser and drive ring
Connection, be to cooperate the via clearance on the active pin shaft of active diffuser and drive ring.
Preferably, as shown in figure 4, the driven diffuser includes driven spindle 13-1, the lower end of driven spindle be equipped with from
Dynamic guide vane 14-1, the upper end of driven spindle connect driven rocker arm 15-1, the end of the driven rocker arm and the one of follower link 16-1
The other end of end rotation connection, follower link connects driven pin shaft 17-1.
The driven diffuser connects drive ring, is by the via clearance on the driven pin shaft of driven diffuser and drive ring
The bottom surface of cooperation, the terminal pad is rotatablely connected driven diffuser, is that the through-hole in terminal pad bottom surface is embedded in bushing, driven expansion
The driven spindle and sleeve clearances of depressor cooperate.
Preferably, as shown in figure 5, the directive wheel includes wheel shaft, the deep groove ball bearing 12-1 being socketed on wheel shaft, screw thread
It is connected to the fastening nut 12-2 of wheel shaft upper end.
Preferably, as shown in Figure 3, Figure 4, the active guide vane, driven guide vane are aerofoil profile.
Further, the active rotating shaft of the active diffuser is equipped with limited block, which limits the swing of active guide vane
Angle is less than 20 degree.
Further, the spiral case outer peripheral surface is tightly connected mounting box, is added between mounting box and the outer peripheral surface of spiral case
Gasket 19, the shaft coupling are socketed O-ring seal.
When work, start Electric Actuator, gear clockwise, counter clockwise direction alternate rotation, drive swing arm with actively
Diffuser active rotating shaft be centre swinging, active diffuser clockwise, counter clockwise direction alternate rotation, drive drive disk up time
Needle, counter clockwise direction alternate rotation, to drive the driven guide vane of driven diffuser synchronous with the active guide vane of active diffuser
It swings, achievees the purpose that diffusion.
The invention further relates to a kind of refrigeration compressor, which includes above-mentioned adjustable diffuser structure.
As the adjustable diffuser of the present invention stable adjusting can be synchronized to the angle of blade to meet different operating conditions
Demand, improve diffuser working efficiency and diffuser work stability.It is taken as above-mentioned adjustable diffuser system
The refrigeration compressor of work can also effectively prevent leaking for refrigerant in addition to the stability for improving work efficiency and working.
Claims (10)
1. a kind of adjustable diffuser comprising the impeller (1) being connected in shaft is sleeved on the periphery of impeller and is connected to snail
Terminal pad (3) on shell (2) inner peripheral surface, it is characterised in that:
The adjustable diffuser also includes active regulating mechanism and driven regulating mechanism,
The active regulating mechanism includes the mounting box (4) being sealedly connected on spiral case outer peripheral surface, and the top of mounting box, which is equipped with, to be connected
Lead to its internal through-hole, attachment base (5) is closely embedded in the through-hole above mounting box, and the top seal connection of attachment base is electronic
The output end of actuator (6), Electric Actuator connects shaft coupling (7), the shaft coupling connection gear (8), the both ends difference of gear
With gear bushing (9) clearance fit, the gear bushing of upper end and the through-hole of attachment base lower end are fitted close, the gear bushing of lower end
It is fitted close with the blind hole on mounting box inner bottom surface, the end-tooth of described gear engagement swing arm (10) right end, a left side for swing arm
End connects active diffuser after stretching out the marking shape window on spiral case, which is rotatably coupled to the bottom of terminal pad
Face, swing arm drive active diffuser clockwise, counter clockwise direction alternate rotation；
The driven regulating mechanism includes connecting the drive ring (11) of active diffuser, which rotates with active diffuser
And rotate, the upper surface of drive ring is uniformly arranged in the circumferential direction several axial through-holes, and it is several that the inner peripheral surface of drive ring rolls connection
Directive wheel (12), the wheel shaft of directive wheel is circumferentially uniformly connected to the bottom surface of terminal pad, if the bottom surface of terminal pad is also rotatablely connected
Do driven diffuser, the driven diffuser and the active diffuser are distributed on the circular arc in the same center of circle and circumferentially uniformly
Setting, driven diffuser connect drive ring and rotate with the rotation of drive ring.
2. adjustable diffuser according to claim 1, it is characterised in that: the active diffuser includes active rotating shaft
(13), the lower end of active rotating shaft is equipped with active guide vane (14), and the upper end of active rotating shaft connects initiatively rocking arm (15), the initiatively rocking arm
End and the one end of drive connecting rod (16) be rotatablely connected, the other end of drive connecting rod connects active pin shaft (17), active rotating shaft
Upper surface connect square shaft (18).
3. adjustable diffuser according to claim 2, it is characterised in that: the left end of the swing arm connects active diffusion
Device is to be fitted close the square hole of swing arm left end and the square shaft of active diffuser active rotating shaft upper surface, the active diffusion
Device is rotatably coupled to the bottom surface of terminal pad, is that the through-hole in terminal pad bottom surface is embedded in bushing, the active of active diffuser
Shaft and sleeve clearances cooperate, the connection of the active diffuser and drive ring, are by the active pin shaft of active diffuser and to drive
Via clearance cooperation on rotating ring.
4. adjustable diffuser according to claim 2, it is characterised in that: the driven diffuser includes driven spindle (13-
1), the lower end of driven spindle is equipped with driven guide vane (14-1), and the upper end of driven spindle connects driven rocker arm (15-1), should be from shaking
The end of arm and the one end of follower link (16-1) are rotatablely connected, and the other end of follower link connects driven pin shaft (17-1).
5. adjustable diffuser according to claim 4, it is characterised in that: the driven diffuser connects drive ring, be by
The driven pin shaft of driven diffuser and the via clearance on drive ring cooperate, and the bottom surface of the terminal pad is rotatablely connected driven diffusion
Device is that the through-hole in terminal pad bottom surface is embedded in bushing, and the driven spindle and sleeve clearances of driven diffuser cooperate.
6. adjustable diffuser according to claim 1, it is characterised in that: the directive wheel includes wheel shaft, is socketed in wheel shaft
On deep groove ball bearing (12-1), be threaded in the fastening nut (12-2) of wheel shaft upper end.
7. adjustable diffuser according to claim 4, it is characterised in that: the active guide vane, driven guide vane are aerofoil profile.
8. adjustable diffuser according to claim 3, it is characterised in that: the active rotating shaft of the active diffuser is equipped with limit
Position block, the limited block limit the swing angle of active guide vane less than 20 degree.
9. adjustable diffuser according to claim 1, it is characterised in that: the spiral case outer peripheral surface is tightly connected mounting box,
It is to be added between mounting box and the outer peripheral surface of spiral case gasket (19), the shaft coupling is socketed O-ring seal.
10. a kind of refrigeration compressor, it is characterised in that: include adjustable diffuser described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489078.7A CN110067778B (en) | 2019-06-06 | 2019-06-06 | Adjustable diffuser and refrigeration compressor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489078.7A CN110067778B (en) | 2019-06-06 | 2019-06-06 | Adjustable diffuser and refrigeration compressor thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110067778A true CN110067778A (en) | 2019-07-30 |
| CN110067778B CN110067778B (en) | 2023-12-15 |
Family
ID=67372591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910489078.7A Active CN110067778B (en) | 2019-06-06 | 2019-06-06 | Adjustable diffuser and refrigeration compressor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110067778B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096374A (en) * | 1989-02-02 | 1992-03-17 | Hitachi, Ltd. | Vane controller |
| CN101818749A (en) * | 2010-03-30 | 2010-09-01 | 河南众力空分设备有限公司 | Rotatable vane diffuser of centrifugal compressor |
| CN201953718U (en) * | 2010-12-17 | 2011-08-31 | 乐金空调(山东)有限公司 | Vane adjustable diffuser of centrifugal compressor |
| CN202040124U (en) * | 2011-05-25 | 2011-11-16 | 北京虎渡能源科技有限公司 | Adjustable blade diffuser device for centrifugal air blower |
| JP2012026354A (en) * | 2010-07-23 | 2012-02-09 | Toyota Motor Corp | Abnormality determination device for internal combustion engine |
| CN102562674A (en) * | 2012-02-14 | 2012-07-11 | 大同北方天力增压技术有限公司 | Adjustable blade diffuser structure of turbo supercharger |
| CN102996522A (en) * | 2012-11-26 | 2013-03-27 | 浙江盾安人工环境股份有限公司 | linkage structure of adjustable guide vanes and adjustable diffuser as well as centrifugal refrigerating compressor |
| CN103511351A (en) * | 2013-10-08 | 2014-01-15 | 无锡杰尔压缩机有限公司 | Direct driving type pressure expanding guide vane adjusting device |
| US20150322965A1 (en) * | 2012-11-15 | 2015-11-12 | Mitsubishi Heavy Industries, Ltd. | Centrifugal compressor |
| CN106704265A (en) * | 2016-11-11 | 2017-05-24 | 珠海格力电器股份有限公司 | Diffusing device, diffuser mounting structure, mechanical device and refrigerating equipment |
| CN107165867A (en) * | 2017-06-06 | 2017-09-15 | 珠海格力电器股份有限公司 | A kind of diffuser structure |
| CN107387459A (en) * | 2017-08-30 | 2017-11-24 | 北京航空航天大学 | A kind of centrifugal blower inlet guide vane and diffuser vane simultaneously match governor motion |
| CN109058160A (en) * | 2018-10-18 | 2018-12-21 | 上海毕森流体设备有限公司 | A kind of air blower |
| CN109441639A (en) * | 2018-12-28 | 2019-03-08 | 中国科学院上海高等研究院 | Gas turbine vane apparatus and gas turbine |
| CN210003565U (en) * | 2019-06-06 | 2020-01-31 | 北京虎渡能源科技有限公司 | adjustable diffuser and refrigeration compressor thereof |
-
2019
- 2019-06-06 CN CN201910489078.7A patent/CN110067778B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096374A (en) * | 1989-02-02 | 1992-03-17 | Hitachi, Ltd. | Vane controller |
| CN101818749A (en) * | 2010-03-30 | 2010-09-01 | 河南众力空分设备有限公司 | Rotatable vane diffuser of centrifugal compressor |
| JP2012026354A (en) * | 2010-07-23 | 2012-02-09 | Toyota Motor Corp | Abnormality determination device for internal combustion engine |
| CN201953718U (en) * | 2010-12-17 | 2011-08-31 | 乐金空调(山东)有限公司 | Vane adjustable diffuser of centrifugal compressor |
| CN202040124U (en) * | 2011-05-25 | 2011-11-16 | 北京虎渡能源科技有限公司 | Adjustable blade diffuser device for centrifugal air blower |
| CN102562674A (en) * | 2012-02-14 | 2012-07-11 | 大同北方天力增压技术有限公司 | Adjustable blade diffuser structure of turbo supercharger |
| US20150322965A1 (en) * | 2012-11-15 | 2015-11-12 | Mitsubishi Heavy Industries, Ltd. | Centrifugal compressor |
| CN102996522A (en) * | 2012-11-26 | 2013-03-27 | 浙江盾安人工环境股份有限公司 | linkage structure of adjustable guide vanes and adjustable diffuser as well as centrifugal refrigerating compressor |
| CN103511351A (en) * | 2013-10-08 | 2014-01-15 | 无锡杰尔压缩机有限公司 | Direct driving type pressure expanding guide vane adjusting device |
| CN106704265A (en) * | 2016-11-11 | 2017-05-24 | 珠海格力电器股份有限公司 | Diffusing device, diffuser mounting structure, mechanical device and refrigerating equipment |
| CN107165867A (en) * | 2017-06-06 | 2017-09-15 | 珠海格力电器股份有限公司 | A kind of diffuser structure |
| CN107387459A (en) * | 2017-08-30 | 2017-11-24 | 北京航空航天大学 | A kind of centrifugal blower inlet guide vane and diffuser vane simultaneously match governor motion |
| CN109058160A (en) * | 2018-10-18 | 2018-12-21 | 上海毕森流体设备有限公司 | A kind of air blower |
| CN109441639A (en) * | 2018-12-28 | 2019-03-08 | 中国科学院上海高等研究院 | Gas turbine vane apparatus and gas turbine |
| CN210003565U (en) * | 2019-06-06 | 2020-01-31 | 北京虎渡能源科技有限公司 | adjustable diffuser and refrigeration compressor thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110067778B (en) | 2023-12-15 |
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