CN103174678A - Centrifugal compressor air guiding recycling structure with multiple channels - Google Patents
Centrifugal compressor air guiding recycling structure with multiple channels Download PDFInfo
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- CN103174678A CN103174678A CN2013100997078A CN201310099707A CN103174678A CN 103174678 A CN103174678 A CN 103174678A CN 2013100997078 A CN2013100997078 A CN 2013100997078A CN 201310099707 A CN201310099707 A CN 201310099707A CN 103174678 A CN103174678 A CN 103174678A
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Abstract
The inventions aims to provide a centrifugal compressor air guiding recycling structure with multiple channels. The centrifugal compressor air guiding recycling structure with the multiple channels comprises a volute shell, a machine box and an impeller. A first channel and a second channel which are used for guiding air for recycling are arranged on the machine box. The first channel comprises a first channel backflow channel, a first channel backflow hole and a first channel air pumping groove, wherein the first channel air pumping groove is arranged between the front edge of a main blade and a splitter blade, and the first channel backflow hole is formed between the front edge of the main blade and an end portion of the machine box. The second channel comprises a second channel backflow channel, a second channel backflow hole and a second channel air pumping groove, wherein the second channel air pumping groove is formed between an outlet of an impeller blade and a diffuser or is formed in a position which is below the outlet of the impeller blade, and the second channel backflow hole is formed between the first channel backflow hole and the end portion of the machine box. By means of the centrifugal compressor air guiding recycling structure with the multiple channels, a working range and a surge margin of the centrifugal compressor under the conditions of the low-pressure ratio and the high-pressure ratio can be effectively enlarged at the same time.
Description
Technical field
What the present invention relates to is a kind of turbosupercharger, specifically the gas compressor of turbosupercharger.
Background technique
Centrifugal compressor uses the bleed recycling device to be widely used on high pressure ratio centrifugal compressor in advanced turbosupercharger both at home and abroad, and its Main Function is to widen the operating range of centrifugal compressor and enlarges its surge margin.Raising along with centrifugal compressor rotating speed and pressure ratio, its effective operating range sharply narrows down, after adopting its bleed recycling device, the centrifugal compressor flow during near the stall margin portion gas bleed by the groove of bleeding, flow into from return port again, so that the operating range of centrifugal compressor broadens, surge margin increases.
The bleed position of groove and size of bleed recycling device has conclusive impact to the increase of widening with surge margin of its operating range, there is different impacts the different groove positions of bleeding, the operating range of centrifugal compressor when traditional bleed recycling device often can not significantly be widened low-pressure ratio and high pressure ratio simultaneously for the expansion of the centrifugal compressor operating range under different rotating speeds.
Summary of the invention
The object of the present invention is to provide the operating range that effectively to widen simultaneously in centrifugal compressor low-pressure ratio and high pressure ratio situation and the multichannel centrifugal compressor bleed recirculation structure of surge margin.
The object of the present invention is achieved like this:
the multichannel centrifugal compressor bleed of the present invention 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: the first passage and the second channel that are provided for bleed recirculation on casing, first passage comprises that two outlets of first passage return flow line and first passage return flow line are first passage return port and the first passage groove of bleeding, the first passage groove of bleeding is arranged between primary blades leading edge and splitterr vanes, the first passage return port is arranged between primary blades leading edge and casing end, second channel comprises that two outlets of second channel return flow line and second channel return flow line are second channel return port and the second channel groove of bleeding, the second channel groove of bleeding is arranged between impeller blade outlet and Diffuser, the second channel return port is arranged between first passage return port and casing end.
The present invention can also comprise:
1, also comprise third channel, third channel comprises that two outlets of third channel return flow line and third channel return flow line are third channel return port and the third channel groove of bleeding, the third channel return port is between first passage return port and second channel return port, and the third channel groove of bleeding is bled between groove at bleed groove and second channel of first passage.
Advantage of the present invention is: the present invention can effectively widen operating range and surge margin in centrifugal compressor low-pressure ratio and high pressure ratio situation simultaneously by using the bleed recirculation structure of 2 passages or the multichannel diverse location size more than 2.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
Mode of execution 1:
In conjunction with Fig. 1, the present invention is a kind of novel centrifugal gas compressor bleed recirculation structure, comprises the return port 11, the return flow line 12 of first passage etc. of bleed groove 10, first passage of return flow line 9, the second channel of return port 8, the second channel of bleed groove 7, the second channel of 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, first passage.It is main is characterised in that between primary blades leading edge 3 and splitterr vanes 4 have the groove of bleeding of first passage, suitable size is selected in the flowing current separation of bleeding of first passage and the operating range of widening the part rotating speed can effectively be improved in the 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 obvious in the slow-speed of revolution and intermediate speed zone lifting, general in the lifting effect of high speed area.Second channel bleed groove 10 between impeller blade outlet and diffuser vane 6, slightly different according to concrete centrifugal compressor position, the groove of bleeding can be arranged on impeller blade outlet following position.The groove of bleeding of second channel is as long as select suitable size and position according to concrete centrifugal compressor, also can promote the operating range under each rotating speed of whole centrifugal compressor, but the bleed circulation means of second channel during for the high rotating speed of centrifugal compressor the lifting effect of operating range better, during for the slow-speed of revolution, the lifting effect of operating range is general, in order to reach operating range and the surge margin of widening simultaneously under each rotating speed of centrifugal compressor, present embodiment has been selected a kind of centrifugal compressor bleed recirculation structure of 2 passages.
Mode of execution 2:
On the basis of mode of execution 1, increase again a passage, it is third channel, third channel comprises third channel return flow line, third channel return port and the third channel groove of bleeding, the third channel return port is between first passage return port and second channel return port, and the third channel groove of bleeding is bled between groove at bleed groove and second channel of first passage.
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: the first passage and the second channel that are provided for bleed recirculation on casing, first passage comprises that two outlets of first passage return flow line and first passage return flow line are first passage return port and the first passage groove of bleeding, the first passage groove of bleeding is arranged between primary blades leading edge and splitterr vanes, the first passage return port is arranged between primary blades leading edge and casing end, second channel comprises that two outlets of second channel return flow line and second channel return flow line are second channel return port and the second channel groove of bleeding, the second channel groove of bleeding is arranged between impeller blade outlet and Diffuser or is arranged on impeller blade outlet following position, the 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 that two outlets of third channel return flow line and third channel return flow line are third channel return port and the third channel groove of bleeding, the third channel return port is between first passage return port and second channel return port, and the third channel groove of bleeding is bled between groove at bleed groove and second channel of first passage.
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 |
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| Publication Number | Publication Date |
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| CN103174678A true CN103174678A (en) | 2013-06-26 |
| CN103174678B 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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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265687A (en) * | 2014-09-25 | 2015-01-07 | 福州大学 | Novel power-brake structure of gas compressor of turbocharger |
| US9157446B2 (en) | 2013-01-31 | 2015-10-13 | Danfoss A/S | Centrifugal compressor with extended operating range |
| CN106368984A (en) * | 2016-10-21 | 2017-02-01 | 哈尔滨工程大学 | Controllable deflation structure for upper wall of centrifugal compressor diffuser and implementation method |
| CN107208658A (en) * | 2015-02-18 | 2017-09-26 | 株式会社Ihi | Centrifugal compressor and booster |
| CN108343513A (en) * | 2017-01-23 | 2018-07-31 | 斗山重工业建设有限公司 | The surge margin control method of gas turbine and the air extractor of gas turbine |
| CN110121599A (en) * | 2017-02-08 | 2019-08-13 | 三菱重工发动机和增压器株式会社 | Centrifugal compressor, turbocharger |
| CN111279086A (en) * | 2017-11-01 | 2020-06-12 | 株式会社Ihi | Centrifugal compressor |
| CN111279084A (en) * | 2017-11-01 | 2020-06-12 | 株式会社Ihi | Centrifugal compressor |
| CN112012957A (en) * | 2020-09-24 | 2020-12-01 | 江西省子轩科技有限公司 | A compressor for industrial production |
| US10962016B2 (en) | 2016-02-04 | 2021-03-30 | Danfoss A/S | Active surge control in centrifugal compressors using microjet injection |
| CN112901342A (en) * | 2021-03-17 | 2021-06-04 | 北京航空航天大学 | Air entraining structure of air compressor |
| 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 |
| US11248612B2 (en) | 2017-11-01 | 2022-02-15 | Ihi Corporation | Centrifugal compressor with gas and liquid cooling lines |
| US11493057B2 (en) | 2019-12-02 | 2022-11-08 | Carrier Corporation | Centrifugal compressor and method of operating the same |
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| JPS6483895A (en) * | 1987-09-28 | 1989-03-29 | Hitachi Ltd | Diffuser for centrifugal type hydraulic machine |
| 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 |
-
2013
- 2013-03-26 CN CN201310099707.8A patent/CN103174678B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483895A (en) * | 1987-09-28 | 1989-03-29 | Hitachi Ltd | Diffuser for centrifugal type hydraulic machine |
| 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 (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9157446B2 (en) | 2013-01-31 | 2015-10-13 | Danfoss A/S | Centrifugal compressor with extended operating range |
| US10184481B2 (en) | 2013-01-31 | 2019-01-22 | Danfoss A/S | Centrifugal compressor with extended operating range |
| CN104265687A (en) * | 2014-09-25 | 2015-01-07 | 福州大学 | Novel power-brake structure of gas compressor of turbocharger |
| CN107208658A (en) * | 2015-02-18 | 2017-09-26 | 株式会社Ihi | Centrifugal compressor and booster |
| CN107208658B (en) * | 2015-02-18 | 2019-07-05 | 株式会社Ihi | Centrifugal compressor and booster |
| US10364825B2 (en) | 2015-02-18 | 2019-07-30 | Ihi Corporation | Centrifugal compressor and turbocharger |
| US10962016B2 (en) | 2016-02-04 | 2021-03-30 | Danfoss A/S | Active surge control in centrifugal compressors using microjet injection |
| CN106368984A (en) * | 2016-10-21 | 2017-02-01 | 哈尔滨工程大学 | Controllable deflation structure for upper wall of centrifugal compressor diffuser and implementation method |
| 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 |
| CN108343513A (en) * | 2017-01-23 | 2018-07-31 | 斗山重工业建设有限公司 | The surge margin control method of gas turbine and the air extractor of gas turbine |
| CN108343513B (en) * | 2017-01-23 | 2020-06-09 | 斗山重工业建设有限公司 | Method for controlling surge margin of gas turbine and gas turbine air extractor |
| CN110121599A (en) * | 2017-02-08 | 2019-08-13 | 三菱重工发动机和增压器株式会社 | Centrifugal compressor, turbocharger |
| CN111279084A (en) * | 2017-11-01 | 2020-06-12 | 株式会社Ihi | Centrifugal compressor |
| CN111279086A (en) * | 2017-11-01 | 2020-06-12 | 株式会社Ihi | Centrifugal compressor |
| CN111279086B (en) * | 2017-11-01 | 2021-04-02 | 株式会社Ihi | Centrifugal compressor |
| CN111279084B (en) * | 2017-11-01 | 2021-04-30 | 株式会社Ihi | Centrifugal compressor |
| US11177489B2 (en) | 2017-11-01 | 2021-11-16 | Ihi Corporation | Centrifugal compressor with diffuser |
| US11248612B2 (en) | 2017-11-01 | 2022-02-15 | Ihi Corporation | Centrifugal compressor with gas and liquid cooling lines |
| US11339800B2 (en) | 2017-11-01 | 2022-05-24 | Ihi Corporation | Centrifugal compressor with heat exchanger |
| US11493057B2 (en) | 2019-12-02 | 2022-11-08 | Carrier Corporation | Centrifugal compressor and method of operating the same |
| CN112012957A (en) * | 2020-09-24 | 2020-12-01 | 江西省子轩科技有限公司 | A compressor for industrial production |
| 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 |
| CN112901342A (en) * | 2021-03-17 | 2021-06-04 | 北京航空航天大学 | Air entraining structure of air compressor |
| 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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| CN103174678B (en) | 2015-09-30 |
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