CN110081025A - MVR centrifugal vapor compressor air inlet anti-asthma vibration tube - Google Patents
MVR centrifugal vapor compressor air inlet anti-asthma vibration tube Download PDFInfo
- Publication number
- CN110081025A CN110081025A CN201910502144.XA CN201910502144A CN110081025A CN 110081025 A CN110081025 A CN 110081025A CN 201910502144 A CN201910502144 A CN 201910502144A CN 110081025 A CN110081025 A CN 110081025A
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- China
- Prior art keywords
- cylinder
- bleed
- deflector
- compressor
- entraining pipe
- 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.)
- Pending
Links
- 230000001088 anti-asthma Effects 0.000 title claims abstract description 14
- 239000000924 antiasthmatic agent Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims description 6
- 241000233855 Orchidaceae Species 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
- F04D27/0238—Details or means for fluid reinjection
-
- 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
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Abstract
This patent is related to MVR centrifugal vapor compressor technical field, disclose a kind of MVR centrifugal vapor compressor air inlet anti-asthma vibration tube, including bleed cylinder, first air entraining pipe, first flange and second flange, first air entraining pipe is connected to bleed cylinder, first air entraining pipe connects exhaust outlet of compressor steam, it further include inner cylinder, deflector and spiral board, inner cylinder is located inside bleed cylinder, the chamber formed between inner cylinder and bleed cylinder is closed by first flange, the other end is connect with spiral board, deflector is fixed between inner cylinder and bleed cylinder, and deflector is between the first air entraining pipe and spiral board, deflector is equipped with several deflector holes, spiral board is equipped with several whirl holes for capableing of swirling eddy.This programme is in the case where introducing exhaust outlet of compressor steam, utilize the inner cylinder, deflector and spiral board of special designing, the vapor stream of introducing is rotated, to change the deflection into compressor airflow, to achieve the purpose that prevent, eliminate compressor surge.
Description
Technical field
The present invention relates to MVR centrifugal vapor compressor technical field, specifically a kind of MVR centrifugal vapor compressor into
Gas anti-asthma vibration tube.
Background technique
The surge of MVR centrifugal vapor compressor is its intrinsic phenomenon.Its consequence is extremely serious when compressor generation surge,
It can be such that compressor performance deteriorates, and pressure, efficiency are substantially reduced, and compressor generates noise, sudden and violent sound, and vibration acutely, turns when serious
Son is possible to collide with fixation member, damages machine.The mechanism of surge be compressor in operation, actual flow is less than
Surging flow.
Therefore, in order to avoid or reduce compressor start or running surge, in compressor arrangement design, usually
Compressor outlet gas is directly introduced into air inlet, so that compressor inlet flow increases to greater than Surging flow；Or use can
The guide vane of rotation makes air-flow generation prewhirl, and changes attacking for the direction reduction inlet edge of impeller blade air-flow for entering impeller air-flow
Angle, to prevent or eliminate the surge of compressor.
Compressor outlet gas is directly introduced into air inlet, increases flow for compressor inlet, structure is simple but will increase
The disorder degree of compressor inlet air-flow, reduces the efficiency of compressor, increases the power consumption of compressor, not energy-efficient.This anti-Zhichuan
The structure of vibration is because of uses a large amount of in industry at low cost.Using this mode structure of rotatable guide vane (adjustable guide vane)
Complexity, manufacturing cost are high.
Summary of the invention
The invention is intended to provide a kind of MVR centrifugal vapor compressor air inlet anti-asthma vibration tube, to solve above-mentioned background technique
The problem of middle proposition.
In order to achieve the above object, base case of the invention is as follows:
MVR centrifugal vapor compressor air inlet anti-asthma vibration tube, including bleed cylinder, the first air entraining pipe, first flange and second
Flange, the first flange and second flange are located at the both ends of bleed cylinder, and first air entraining pipe is connected to bleed cylinder, institute
It states the first air entraining pipe and connects exhaust outlet of compressor steam, further include inner cylinder, deflector and spiral board, the inner cylinder is located in bleed cylinder
Portion is simultaneously coaxial with bleed cylinder, and the chamber formed between the inner cylinder and bleed cylinder is closed by first flange, the other end and rotation
Flowing plate connection, the deflector is fixed between inner cylinder and bleed cylinder, and the deflector is located at the first air entraining pipe and spiral board
Between, the deflector is equipped with several deflector holes, and the spiral board is equipped with several whirl holes for capableing of swirling eddy, passes through
The flow rotation direction of the whirl hole and the wheel rotation direction of MVR centrifugal vapor compressor are identical.
Base case the utility model has the advantages that (1) this programme is set in the case where introducing exhaust outlet of compressor steam using special
Inner cylinder, deflector and the spiral board of meter, rotate the vapor stream of introducing, to change the direction into compressor airflow
Angle, to achieve the purpose that prevent, eliminate compressor surge.
(2) for this patent compared with the existing mode that compressor outlet gas is directly introduced to air inlet, this programme can
Reach better anti-surge effect, the increasing to disorder degree caused by compressor inlet air-flow in the case where identical inlet air flow
Add, the reduction of compressor efficiency, the increase of compressor power consumption the problems such as all improve significantly.
(3) this patent with it is existing using rotatable guide vane make air-flow generation prewhirl by the way of compared with, this programme
The guide vane using rotation is not needed, reduces manufacturing cost, and can be by changing eddy flow hole number, shape on spiral board
Shape etc. meets the anti-surge demand of the compressor of different model, simplifies the structure of compressor surge-proof mechanism, reduces compression
The seal request of machine system.
Further, be also communicated with the second air entraining pipe on the bleed cylinder, second air entraining pipe connect it is outer for steam, described
Two air entraining pipes are located at the right opposite of the first air entraining pipe.The flow of steam can be improved, to improve the speed of air-flow outside for steam
Degree, in compressor start or shutdown, the flow by adjusting the second air entraining pipe adjusts flow rotation speed, thus change into
The deflection for entering impeller air-flow prevents compressor from surge occurs.
Further, further include swirl cylinder, the swirl cylinder is divergent-cone wall, one end that the swirl cylinder is relatively large in diameter with
Bleed cylinder is fixedly connected, and the swirl cylinder other end is fixedly connected with second flange.Make the rotation for entering swirl cylinder by spiral board
Air-flow drives the flow rotation entered by inner cylinder, swirling eddy is provided for compression impellor, to reach better anti-surge effect.
Further, the whirl hole on the spiral board is inclined through-hole.By the air-flow of deflector into crossing on spiral board
Inclined through-hole prewhirls to air-flow to realize for the tilt angle rotational flow of through-hole.
Further, the whirl hole on the spiral board is nozzle vane type channel.Using nozzle vane type channel to air-flow
It prewhirls, compared with inclined through-hole, nozzle vane type channel is more preferable to the pre- swirl effect of air-flow.
Further, the whirl hole is evenly distributed on spiral board.Being uniformly distributed for whirl hole can be realized better gas
Flow pre- swirl effect.
Further, the end of the second flange is equipped with several axial annular recess.In operation, second flange and compressor
Connection, axial annular recess are capable of forming sealed passage, increase the sealing effect after this programme is connect with compressor.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention one；
Fig. 2 is the cross-sectional view of the embodiment of the present invention one；
Fig. 3 is the front view of deflector in the embodiment of the present invention one；
Fig. 4 is the cross-sectional view of deflector in the embodiment of the present invention one；
Fig. 5 is the front view of spiral board in the embodiment of the present invention one；
Fig. 6 is the side view partial cutaway view of spiral board in the embodiment of the present invention one；
Fig. 7 is the front view of spiral board in the embodiment of the present invention two；
Fig. 8 is the side view partial cutaway view of spiral board in the embodiment of the present invention two.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: bleed cylinder 1, the first air entraining pipe 2, the second air entraining pipe 3, first flange 4,
Second flange 5, swirl cylinder 6, inner cylinder 7, deflector 8, spiral board 9, deflector hole 10, whirl hole 11, axial annular recess 12.
Embodiment one
Substantially as shown in attached drawing 1, Fig. 2: MVR centrifugal vapor compressor air inlet anti-asthma vibration tube, including bleed cylinder 1, first
Air entraining pipe 2, the second air entraining pipe 3, first flange 4, second flange 5, swirl cylinder 6, inner cylinder 7, deflector 8 and spiral board 9, first draws
Tracheae 2, the second air entraining pipe 3 are connected to bleed cylinder 1, and the first air entraining pipe 2 connects exhaust outlet of compressor steam, and the second air entraining pipe 3 connects
It is outer for steam, the second air entraining pipe 3 is located at the right opposite of the first air entraining pipe 2.Inner cylinder 7 is located at the inside of bleed cylinder 1 and same with bleed cylinder 1
Axis, the chamber formed between inner cylinder 7 and bleed cylinder 1 are closed by first flange 4, and the other end is connect with spiral board 9, inner cylinder 7
For main inlet channel.Deflector 8 is fixed between inner cylinder 7 and bleed cylinder 1, and deflector 8 is located at the first air entraining pipe 2 and spiral board
Between 9 and parallel with spiral board 9, in conjunction with shown in Fig. 3, Fig. 4, deflector 8 is equipped with several equally distributed deflector holes 10, in conjunction with
Shown in Fig. 5, Fig. 6, spiral board 9 is equipped with several equally distributed whirl holes 11 for capableing of swirling eddy, and whirl hole 11 is inclination
Through-hole, the flow rotation direction by the whirl hole 11 is identical as the centrifugal vapor compressor wheel rotation direction MVR.Rotation
Flow cartridge 6 is divergent-cone wall, and one end that swirl cylinder 6 is relatively large in diameter is fixedly connected with bleed cylinder 1,6 other end of swirl cylinder and second
Flange 5 is fixedly connected, and the end of second flange 5 is equipped with several axial annular recess 12.
Specific implementation process is as follows: when compressor start, first appropriateness opens the first air entraining pipe 2 and the second air entraining pipe 3 simultaneously
Steam, by some vapor of exhaust outlet of compressor and it is outer for steam introduce air inlet anti-surge pipe, steam pass through air inlet anti-surge
After equally distributed deflector hole 10 depressurizes on deflector 8 in pipe, the spiral board 9 for being evenly distributed with inclined through-hole is flowed through, is changed
Flow direction forms swirling eddy.Then at the uniform velocity start compressor, when surge occurs for compressor, individually adjust the first bleed
The steam flow of pipe 2 or the second air entraining pipe 3 or the steam flow for adjusting two air entraining pipes simultaneously, to change prewhirling into impeller
The deflection of air-flow eliminates the surge of compressor in start-up course.
After machine start completion to be compressed, first close outer for steam, in the case where surge does not occur for guarantee, adjusting or closing
Quoted from the steam of exhaust outlet of compressor.When there is surge in compressor operational process, the steam quoted from exhaust outlet of compressor is adjusted
Flow changes the airflow direction angle of prewhirling for entering impeller, eliminates surge.When shutdown, first unlatching is outer for steam, and compressor gradually subtracts
Speed operating is until shut down.It individually adjusts the steam flow of the first air entraining pipe 2 or the second air entraining pipe 3 or adjusts two air entraining pipes simultaneously
Steam flow, eliminate stopping process in compressor surge.
Embodiment two
The present embodiment is distinguished compared with embodiment one and is only that: the whirl hole 11 on the spiral board 9 in conjunction with shown in Fig. 7, Fig. 8 is
Nozzle vane type channel.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and/or characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, also
Several modifications and improvements can be made, these also should be considered as protection scope of the present invention, these all will not influence of the invention real
The effect and patent practicability applied.The scope of protection required by this application should be based on the content of the claims, specification
In the records such as specific embodiment can be used for explaining the content of claim.
Claims (7)
1.MVR centrifugal vapor compressor air inlet anti-asthma vibration tube, including bleed cylinder, the first air entraining pipe, first flange and the second method
Orchid, the first flange and second flange are located at the both ends of bleed cylinder, and first air entraining pipe is connected to bleed cylinder, described
First air entraining pipe connects exhaust outlet of compressor steam, it is characterised in that: further includes inner cylinder, deflector and spiral board, the inner cylinder position
Inside bleed cylinder and coaxial with bleed cylinder, the chamber formed between the inner cylinder and bleed cylinder is closed by first flange,
The other end is connect with spiral board, and the deflector is fixed between inner cylinder and bleed cylinder, and the deflector is located at the first bleed
Between pipe and spiral board, the deflector is equipped with several deflector holes, and the spiral board is equipped with several swirling eddies of capableing of
Whirl hole, the flow rotation direction by the whirl hole are identical as the wheel rotation direction of MVR centrifugal vapor compressor.
2. MVR centrifugal vapor compressor air inlet anti-asthma vibration tube according to claim 1, it is characterised in that: the bleed
Also it is communicated with the second air entraining pipe on cylinder, second air entraining pipe connects outer for steam, and second air entraining pipe is located at the first air entraining pipe
Right opposite.
3. MVR centrifugal vapor compressor air inlet anti-asthma vibration tube according to claim 2, it is characterised in that: further include rotation
Flow cartridge, the swirl cylinder are divergent-cone wall, and one end that the swirl cylinder is relatively large in diameter is fixedly connected with bleed cylinder, the eddy flow
The cylinder other end is fixedly connected with second flange.
4. MVR centrifugal vapor compressor air inlet anti-asthma vibration tube according to claim 3, it is characterised in that: the eddy flow
Whirl hole on plate is inclined through-hole.
5. MVR centrifugal vapor compressor air inlet anti-asthma vibration tube according to claim 3, it is characterised in that: the eddy flow
Whirl hole on plate is nozzle vane type channel.
6. MVR centrifugal vapor compressor air inlet anti-asthma vibration tube according to claim 4 or 5, it is characterised in that: the rotation
Discharge orifice is evenly distributed on spiral board.
7. MVR centrifugal vapor compressor air inlet anti-asthma vibration tube according to claim 6, it is characterised in that: described second
The end of flange is equipped with several axial annular recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910502144.XA CN110081025A (en) | 2019-06-11 | 2019-06-11 | MVR centrifugal vapor compressor air inlet anti-asthma vibration tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910502144.XA CN110081025A (en) | 2019-06-11 | 2019-06-11 | MVR centrifugal vapor compressor air inlet anti-asthma vibration tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110081025A true CN110081025A (en) | 2019-08-02 |
Family
ID=67424056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910502144.XA Pending CN110081025A (en) | 2019-06-11 | 2019-06-11 | MVR centrifugal vapor compressor air inlet anti-asthma vibration tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110081025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104793A (en) * | 2023-04-14 | 2023-05-12 | 鸿陆智能科技(山东)有限公司 | MVR centrifugal vapor compressor intake anti-surge pipe |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413861A (en) * | 1973-05-14 | 1975-11-12 | Barodyne Inc | Surge control for centrifugal compressors |
| JPS58202399A (en) * | 1982-05-21 | 1983-11-25 | Hitachi Ltd | Surging preventing apparatus for multistage axial-flow compressor |
| JPH09310699A (en) * | 1996-05-21 | 1997-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Centrifugal compressor |
| US6394751B1 (en) * | 1999-05-05 | 2002-05-28 | Daimlerchrysler Ag | Radial compressor with wall slits |
| CN104428539A (en) * | 2012-08-24 | 2015-03-18 | 三菱重工业株式会社 | Centrifugal compressor |
| CN105339673A (en) * | 2013-05-09 | 2016-02-17 | 帝国创新有限公司 | Centrifugal compressor with inlet duct having swirl generators |
| US20160195109A1 (en) * | 2013-08-09 | 2016-07-07 | Aeristech Limited | Attachment arrangement for turbo compressor |
| CN105782117A (en) * | 2016-03-07 | 2016-07-20 | 合肥通用机械研究院 | Stability extending device of centrifugal compressor |
| CN209959571U (en) * | 2019-06-11 | 2020-01-17 | 重庆德蚨乐机械制造有限公司 | Air inlet anti-surge pipe of MVR centrifugal type vapor compressor |
-
2019
- 2019-06-11 CN CN201910502144.XA patent/CN110081025A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413861A (en) * | 1973-05-14 | 1975-11-12 | Barodyne Inc | Surge control for centrifugal compressors |
| JPS58202399A (en) * | 1982-05-21 | 1983-11-25 | Hitachi Ltd | Surging preventing apparatus for multistage axial-flow compressor |
| JPH09310699A (en) * | 1996-05-21 | 1997-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Centrifugal compressor |
| US6394751B1 (en) * | 1999-05-05 | 2002-05-28 | Daimlerchrysler Ag | Radial compressor with wall slits |
| CN104428539A (en) * | 2012-08-24 | 2015-03-18 | 三菱重工业株式会社 | Centrifugal compressor |
| CN105339673A (en) * | 2013-05-09 | 2016-02-17 | 帝国创新有限公司 | Centrifugal compressor with inlet duct having swirl generators |
| US20160195109A1 (en) * | 2013-08-09 | 2016-07-07 | Aeristech Limited | Attachment arrangement for turbo compressor |
| CN105782117A (en) * | 2016-03-07 | 2016-07-20 | 合肥通用机械研究院 | Stability extending device of centrifugal compressor |
| CN209959571U (en) * | 2019-06-11 | 2020-01-17 | 重庆德蚨乐机械制造有限公司 | Air inlet anti-surge pipe of MVR centrifugal type vapor compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104793A (en) * | 2023-04-14 | 2023-05-12 | 鸿陆智能科技(山东)有限公司 | MVR centrifugal vapor compressor intake anti-surge pipe |
| CN116104793B (en) * | 2023-04-14 | 2023-08-04 | 鸿陆智能科技(山东)有限公司 | MVR centrifugal vapor compressor intake anti-surge pipe |
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