CN103174678B - Multichannel centrifugal compressor bleed recirculation structure - Google Patents
Multichannel centrifugal compressor bleed recirculation structure Download PDFInfo
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- CN103174678B CN103174678B CN201310099707.8A CN201310099707A CN103174678B CN 103174678 B CN103174678 B CN 103174678B CN 201310099707 A CN201310099707 A CN 201310099707A CN 103174678 B CN103174678 B CN 103174678B
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Abstract
The object of the present invention is to provide multichannel centrifugal compressor bleed recirculation structure, comprise spiral case, casing, impeller, casing arranges the first passage being used for bleed recirculation and second channel, first passage comprises first passage return flow line, first passage return port and first passage are bled groove, first passage groove of bleeding is arranged between primary blades leading edge and splitterr vanes, first passage return port is arranged between primary blades leading edge and casing end, second channel comprises second channel return flow line, second channel return port and second channel are bled groove, second channel groove of bleeding is arranged between impeller blade outlet with Diffuser or is arranged on impeller blade and exports following position, second channel return port is arranged between first passage return port and casing end.The present invention effectively can widen operating range in centrifugal compressor low-pressure ratio and high pressure ratio situation and surge margin simultaneously.
Description
Technical field
What the present invention relates to is a kind of turbosupercharger, the specifically gas compressor of turbosupercharger.
Background technique
On the high pressure ratio centrifugal compressor that centrifugal compressor uses bleed recycling device to be widely used in advanced turbosupercharger both at home and abroad, its Main Function is operating range and its surge margin of expansion of widening centrifugal compressor.Along with the raising of centrifugal compressor rotating speed and pressure ratio, its effective operating range sharply narrows, after adopting its bleed recycling device, bled by groove of bleeding close to portion gas during stall margin at centrifugal compressor flow, flow into from return port again, to make the operating range of centrifugal compressor broaden, surge margin increases.
Bleed recycling device bleed the position of groove and size on its operating range widen and the increase of surge margin has conclusive impact, the expansion that different slots of bleeding is put for the centrifugal compressor operating range under different rotating speeds has different impacts, the operating range of centrifugal compressor when traditional bleed recycling device often significantly can not widen low-pressure ratio and high pressure ratio simultaneously.
Summary of the invention
The object of the present invention is to provide the multichannel centrifugal compressor bleed recirculation structure simultaneously effectively can widening operating range in centrifugal compressor low-pressure ratio and high pressure ratio situation and surge margin.
The object of the present invention is achieved like this:
The present invention's multichannel centrifugal compressor bleed recirculation structure, comprise spiral case, casing, impeller, spiral case respectively with casing, impeller is connected, in the space that spiral case and casing and impeller form, Diffuser is installed, primary blades, splitterr vanes, it is characterized in that: casing arranges the first passage being used for bleed recirculation and second channel, first passage comprises two outlets of first passage return flow line and first passage return flow line and first passage return port and first passage and to bleed groove, first passage groove of bleeding is arranged between primary blades leading edge and splitterr vanes, first passage return port is arranged between primary blades leading edge and casing end, second channel comprises two outlets of second channel return flow line and second channel return flow line and second channel return port and second channel and to bleed groove, second channel bleed groove be arranged on impeller blade outlet with Diffuser between, second channel return port is arranged between first passage return port and casing end.
The present invention can also comprise:
1, also third channel is comprised, third channel comprises two outlets of third channel return flow line and third channel return flow line and third channel return port and third channel and to bleed groove, third channel return port is between first passage return port and second channel return port, bleeds between groove in bleed groove and second channel of first passage in third channel slot of bleeding.
Advantage of the present invention is: the present invention by the bleed recirculation structure of the multichannel diverse location size of use 2 passages or more than 2, can while effectively widen operating range in centrifugal compressor low-pressure ratio and high pressure ratio situation and surge margin.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Mode of execution 1:
Composition graphs 1, the present invention is a kind of novel centrifugal bleed air recirculation structure, comprises centrifugal compressor spiral case 1, centrifugal compressor casing 2, centrifugal compressor primary blades leading edge 3, centrifugal compressor splitterr vanes leading edge 4, centrifugal compressor impeller 5, centrifugal compressor vane diffuser 6, the groove 7 of bleeding of first passage, the return port 8 of second channel, the return flow line 9 of second channel, the groove 10 of bleeding of second channel, the return port 11 of first passage, the return flow line 12 etc. of first passage.Its main feature to be between primary blades leading edge 3 and splitterr vanes 4 grooves of bleeding having a first passage, the flowing current separation of bleeding of first passage is selected the operating range that pupil portion rotating speed effectively can be improved in suitable size and position, first passage is often all different to the raising degree of whole centrifugal compressor operating range to the lifting of whole operating range, often promote obviously in the slow-speed of revolution and intermediate speed region, general in the lifting effect of high speed area.The groove 10 of bleeding of second channel exports between diffuser vane 6 at impeller blade, slightly different according to concrete centrifugal compressor position, groove of bleeding can be arranged on impeller blade and export following position.As long as the groove of bleeding of second channel selects suitable size and position according to concrete centrifugal compressor, also the operating range under each rotating speed of whole centrifugal compressor can be promoted, but the bleed circulation means of second channel is better for the lifting effect of operating range during centrifugal compressor height rotating speed, lifting effect for operating range during the slow-speed of revolution is general, widen operating range under each rotating speed of centrifugal compressor and surge margin to reach, present embodiment have selected a kind of centrifugal compressor bleed recirculation structure of 2 passages simultaneously.
Mode of execution 2:
On the basis of mode of execution 1, increase a passage again, i.e. third channel, third channel comprises third channel return flow line, third channel return port and third channel and to bleed groove, third channel return port is between first passage return port and second channel return port, bleeds between groove in bleed groove and second channel of first passage in third channel slot of bleeding.
Claims (2)
1. multichannel centrifugal compressor bleed recirculation structure, comprise spiral case, casing, impeller, spiral case respectively with casing, impeller is connected, in the space that spiral case and casing and impeller form, Diffuser is installed, primary blades, splitterr vanes, it is characterized in that: casing arranges the first passage being used for bleed recirculation and second channel, first passage comprises two outlets of first passage return flow line and first passage return flow line and first passage return port and first passage and to bleed groove, first passage groove of bleeding is arranged between primary blades leading edge and splitterr vanes, first passage return port is arranged between primary blades leading edge and casing end, second channel comprises two outlets of second channel return flow line and second channel return flow line and second channel return port and second channel and to bleed groove, second channel groove of bleeding is arranged between impeller blade outlet with Diffuser or is arranged on impeller blade and exports following position, second channel return port is arranged between first passage return port and casing end.
2. multichannel centrifugal compressor bleed recirculation structure according to claim 1, it is characterized in that: also comprise third channel, third channel comprises two outlets of third channel return flow line and third channel return flow line and third channel return port and third channel and to bleed groove, third channel return port is between first passage return port and second channel return port, bleeds between groove in bleed groove and second channel of first passage in third channel slot of bleeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099707.8A CN103174678B (en) | 2013-03-26 | 2013-03-26 | Multichannel centrifugal compressor bleed recirculation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099707.8A CN103174678B (en) | 2013-03-26 | 2013-03-26 | Multichannel centrifugal compressor bleed recirculation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174678A CN103174678A (en) | 2013-06-26 |
| CN103174678B true CN103174678B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310099707.8A Expired - Fee Related CN103174678B (en) | 2013-03-26 | 2013-03-26 | Multichannel centrifugal compressor bleed recirculation structure |
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| CN (1) | CN103174678B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11867196B2 (en) | 2019-12-02 | 2024-01-09 | Carrier Corporation | Centrifugal compressor and method of operating the same |
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| WO2014120335A1 (en) | 2013-01-31 | 2014-08-07 | Danfoss Turbocor Compressors B.V. | Centrifugal compressor with extended operating range |
| CN104265687B (en) * | 2014-09-25 | 2017-01-18 | 福州大学 | Power-brake structure of gas compressor of turbocharger |
| DE112015004675T5 (en) * | 2015-02-18 | 2017-07-06 | Ihi Corporation | Centrifugal compressor and turbocharger |
| WO2017135949A1 (en) | 2016-02-04 | 2017-08-10 | Danfoss A/S | Active surge control in centrifugal compressors using microjet injection |
| CN106368984B (en) * | 2016-10-21 | 2019-02-01 | 哈尔滨工程大学 | A kind of controllable deflation structure of centrifugal compressor diffuser upper wall and implementation method |
| KR101921410B1 (en) * | 2017-01-23 | 2018-11-22 | 두산중공업 주식회사 | Method for controlling surge margin of gas turbine and extraction device for gas turbine |
| WO2018146753A1 (en) * | 2017-02-08 | 2018-08-16 | 三菱重工エンジン＆ターボチャージャ株式会社 | Centrifugal compressor and turbocharger |
| DE112018005188T5 (en) * | 2017-11-01 | 2020-06-25 | Ihi Corporation | Centrifugal compressor |
| DE112018005240T5 (en) | 2017-11-01 | 2020-07-02 | Ihi Corporation | Centrifugal compressor |
| JP6888688B2 (en) | 2017-11-01 | 2021-06-16 | 株式会社Ihi | Centrifugal compressor |
| CN112012957B (en) * | 2020-09-24 | 2022-07-19 | 北京普瑞浩特能源科技有限公司 | A compressor for industrial production |
| CN113175438A (en) * | 2021-03-16 | 2021-07-27 | 中国航发哈尔滨东安发动机有限公司 | Multi-channel compressor air-entraining circulating device of turboshaft engine and control method |
| CN112901342B (en) * | 2021-03-17 | 2022-06-24 | 北京航空航天大学 | Air entraining structure of air compressor |
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|---|---|---|---|---|
| CN101012837A (en) * | 2007-02-02 | 2007-08-08 | 清华大学 | Centrifugal compressor having air removal jet box structure |
| CN201090531Y (en) * | 2007-09-20 | 2008-07-23 | 露笑集团有限公司 | Anti-surging impeller cover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615879B2 (en) * | 1987-09-28 | 1994-03-02 | 株式会社日立製作所 | Diff user of centrifugal fluid machine |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012837A (en) * | 2007-02-02 | 2007-08-08 | 清华大学 | Centrifugal compressor having air removal jet box structure |
| CN201090531Y (en) * | 2007-09-20 | 2008-07-23 | 露笑集团有限公司 | Anti-surging impeller cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11867196B2 (en) | 2019-12-02 | 2024-01-09 | Carrier Corporation | Centrifugal compressor and method of operating the same |
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| CN103174678A (en) | 2013-06-26 |
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