CN104389802A - Air compressor end oil leakage detection device for turbocharger laboratory - Google Patents
Air compressor end oil leakage detection device for turbocharger laboratory Download PDFInfo
- Publication number
- CN104389802A CN104389802A CN201410635376.XA CN201410635376A CN104389802A CN 104389802 A CN104389802 A CN 104389802A CN 201410635376 A CN201410635376 A CN 201410635376A CN 104389802 A CN104389802 A CN 104389802A
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- China
- Prior art keywords
- control valve
- electric control
- gas compressor
- compressor end
- turbosupercharger
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Classifications
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- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses an air compressor end oil leakage detection device for a turbocharger laboratory. The device comprises a first electric adjusting valve, a flow meter, a first negative pressure sensor, a vacuum pump, a second electric adjusting valve, a second negative pressure sensor and a rotation speed sensor, wherein air is led into an air inlet end of the first electric adjusting valve in a suspending manner, and an air outlet end of the first electric adjusting valve is connected with an air inlet of an air compressor end through the flow meter; the first negative pressure sensor is arranged on a pipeline between the flow meter and the air inlet of the air compressor end; the vacuum pump is connected with an air outlet end of the second electric adjusting valve; an air inlet of the second electric adjusting valve is connected with an exhaust hole of the air compressor end; the second negative pressure sensor is arranged on a pipeline between the air inlet end of the second electric adjusting valve and the exhaust hole of the air compressor end; the rotation speed sensor is arranged on an air compressor volute of the turbocharger. The device has the advantages of simple structure, convenience in adjustment and high detection accuracy.
Description
Technical field
The present invention relates to a kind of turbosupercharger use for laboratory auxiliary device, especially relate to a kind of turbosupercharger use for laboratory gas compressor end leakage detection device.
Background technique
What in turbosupercharger, seal oil generally adopted is maze-type structure, the pressure of lubricant oil is generally between 0.25 ~ 0.4Mpa, lubricant oil after maze-type structure, arrive its pressure of gas compressor end can close to atmospheric pressure, and what produce at the suction port place of gas compressor end due to the High Rotation Speed of turbosupercharger is negative pressure, if therefore the negative pressure of gas compressor end is too low, the imbalance of the negative pressure pressure then very easily causing the suction port place of gas compressor end to produce and the pressure of lubricant oil, can cause turbosupercharger in the leakage of oil of gas compressor end like this.Therefore, the whether leakage of oil of its gas compressor end need be detected in turbosupercharger laboratory before turbosupercharger is dispatched from the factory, and existing gas compressor end leakage detection device measures that negative pressure adopts is that the mercury pressure change of measuring mercury indicates the suction port place of gas compressor end and the negative pressure value of exhaust ports, measure and need to use the drafting square that measuring range is about 1m, measurement testing precision is unsatisfactory, regulates simultaneously, operating neither be very convenient; If when negative pressure value is larger in addition, then mercury may be made to overflow and leak, this can affect to experimenter, experimental situation.Therefore be necessary to study a kind of high measurement accuracy, and regulate, easy to operate, the safe device for detecting the leakage of oil of gas compressor end.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of structure simple turbosupercharger use for laboratory gas compressor end leakage detection device, and its testing precision is high, and easy to operate, work safety.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of turbosupercharger use for laboratory gas compressor end leakage detection device, it is characterized in that comprising the first electric control valve, be used to indicate the flowmeter of air mass flow, for measure the first B/P EGR Back Pressure Transducer EGR of the suction port place negative pressure pressure of gas compressor end, vacuum pump, the second electric control valve, for measuring described vacuum pump work time the second B/P EGR Back Pressure Transducer EGR of negative pressure pressure of causing and the speed probe for measuring turbo charger speed, the inlet end of the first described electric control valve is unsettled passes into air, the outlet side of the first described electric control valve is connected with the suction port of gas compressor end by described flowmeter, the first described B/P EGR Back Pressure Transducer EGR is arranged on the pipeline that described flowmeter is connected with the suction port of gas compressor end, described vacuum pump is connected with the outlet side of the second described electric control valve, the inlet end of the second described electric control valve is connected with the relief opening of gas compressor end, on the pipeline that the inlet end that the second described B/P EGR Back Pressure Transducer EGR is arranged at the second described electric control valve is connected with the relief opening of gas compressor end, described speed probe adopts the contactless velocity measuring technique of bar magnet to be installed on the compressor volute of turbosupercharger.
The first described electric control valve is long-range is connected with the first potentiometer, and the aperture of the first described electric control valve is realized by the first potentiometer telecontrol described in regulating; The second described electric control valve is long-range is connected with the second potentiometer, and the aperture of the second described electric control valve is realized by the second potentiometer telecontrol described in regulating.
The output terminal of the first described B/P EGR Back Pressure Transducer EGR is connected with the first pressure digital display meter; The output terminal of the second described B/P EGR Back Pressure Transducer EGR is connected with the second pressure digital display meter.
The output terminal of described speed probe is connected with Digital revolution indicator by amplifier; At this, connect an amplifier at the output terminal of speed probe, and the tach signal after amplifying is input in Digital revolution indicator, be convenient to the rotating speed showing turbosupercharger in real time.
Described speed probe is installed on the suction port place on the compressor volute of rotating shaft place of turbosupercharger.
Compared with prior art, the invention has the advantages that: by controlling the aperture of the first electric control valve, the negative pressure at the suction port place of the air mass flow that flowmeter is indicated and gas compressor end changes, by controlling the aperture of the second electric control valve, the gas that the relief opening of vacuum pump suction pressure mechanism of qi end is discharged makes the relief opening negative pressure of gas compressor end change, this makes it possible to measure at different suction ports, the leakage of oil situation of the gas compressor end of turbosupercharger under relief opening negative pressure standard, the aperture of first electric control valve at the suction port place of gas compressor end more hour, the negative pressure at the suction port place of gas compressor end is lower, the extracting force of the vacuum pump of the exhaust ports of gas compressor end is larger, and the negative pressure of exhaust ports is also lower, so often regulate once, just can cause the change of suction port place, exhaust ports negative pressure, whether have oil leakage phenomenon when the parameter stability such as the rotating speed running of turbosupercharger just can detect gas compressor end after at least 10 minutes, this leakage detection device is not only easy to adjust but also select high-precision sensing equipment to make its testing precision also be quite high.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of gas compressor end leakage detection device of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
A kind of turbosupercharger use for laboratory gas compressor end leakage detection device that the present invention proposes, as shown in the figure, it comprise the first electric control valve 1, be used to indicate the flowmeter 2 of air mass flow, the second B/P EGR Back Pressure Transducer EGR 6 of negative pressure pressure of causing and the speed probe 7 for measuring turbo charger speed for measuring the first B/P EGR Back Pressure Transducer EGR 3 of the suction port place negative pressure pressure of gas compressor end, vacuum pump 4, second electric control valve 5, when working for Measuring Vacuum 4, the inlet end of the first electric control valve 1 is unsettled passes into air, the outlet side of the first electric control valve 1 is connected with one end of flowmeter 2 by DN50 pipeline, the other end of flowmeter 2 is connected with the suction port of gas compressor end by DN50 pipeline, first electric control valve 1 is long-range is connected with the first potentiometer (not shown), the aperture of the first electric control valve 1 is realized by adjustment first potentiometer telecontrol, first B/P EGR Back Pressure Transducer EGR 3 is arranged on the pipeline that flowmeter 2 is connected with the suction port of gas compressor end, the pipeline that can be connected with the suction port of gas compressor end at flowmeter 2 is opened an aperture for installing the first B/P EGR Back Pressure Transducer EGR 3, the output terminal of the first B/P EGR Back Pressure Transducer EGR 3 is connected with the first pressure digital display meter 9, vacuum pump 4 is connected with the outlet side of the second electric control valve 5, the inlet end of the second electric control valve 5 is connected with the relief opening of gas compressor end, second electric control valve 5 is long-range is connected with the second potentiometer (not shown), the aperture of the second electric control valve 5 is realized by adjustment second potentiometer telecontrol, on the pipeline that the inlet end that second B/P EGR Back Pressure Transducer EGR 6 is arranged at the second electric control valve 5 is connected with the relief opening of gas compressor end, the pipeline that can be connected with the relief opening of gas compressor end at the inlet end of the second electric control valve 5 is opened an aperture for installing the second B/P EGR Back Pressure Transducer EGR 6, the output terminal of the second B/P EGR Back Pressure Transducer EGR 6 is connected with the second pressure digital display meter 11, speed probe 7 is installed on the enterprising gas port place of compressor volute of rotating shaft place near turbosupercharger, the output terminal of speed probe 7 is connected with Digital revolution indicator 13 by amplifier 12.
In the present embodiment, the first electric control valve 1 and the second electric control valve 5 all adopt existing electric control valve; Flowmeter 2 and vacuum pump 4 all adopt prior art; First B/P EGR Back Pressure Transducer EGR 3 and the second B/P EGR Back Pressure Transducer EGR 6 all adopt existing B/P EGR Back Pressure Transducer EGR; Speed probe 7 adopts prior art, in fact non-contacting bar magnet is adopted to be fixed on the suction port place of the compressor volute of gas compressor end to measure the rotating speed of turbosupercharger, but the shaft end nut opposite side of tackling before experiment in the turbine shaft of turbosupercharger magnetizes, like this when the axis of rotation of turbosupercharger, be with magnetic shaft end nut synchronous axial system thereupon, the speed probe be made up of as sense cell mistor exports the pulse signal relevant to speed, reaches the object testing the speed and detect; Speed probe is arranged on the compressor volute of rotating shaft place of turbosupercharger, require that the material of shaft end nut can carry out opposite side with magnetic material and magnetize, and the Material selec-tion of other part in the rotating shaft of turbosupercharger all can not magnetize with magnetic material; In addition, gas compressor end temperature is more much lower than the temperature of turbine end, speed probe is arranged on the impact can avoiding its measuring accuracy on the compressor volute of rotating shaft place of turbosupercharger; First potentiometer and the second potentiometer all adopt existing potentiometer; First pressure digital display meter 9 and the second pressure digital display meter 11 all adopt existing pressure digital display meter; Amplifier 12 and Digital revolution indicator 13 all adopt prior art.
During gas compressor end leakage detection device work of the present invention, first the rotating speed of turbosupercharger is regulated to change the rotating speed reached needed for setting by high-temperature fuel gas, then the aperture of the first electric control valve is controlled by adjustment first potentiometer, the negative pressure at the suction port place of the air mass flow that flowmeter is indicated and gas compressor end changes, by the aperture regulating the second potentiometer to control the second electric control valve, the negative pressure that the gas that the relief opening of vacuum pump suction pressure mechanism of qi end is discharged causes changes, so often regulate once, just suction port can be caused, the change of relief opening negative pressure, when the parameter stability such as the rotating speed running of turbosupercharger closed gas compressor end leakage detection device after at least 10 minutes, take the spiral case of gas compressor end again apart, check the relief opening runner of gas compressor end, whether the bearing support large end face place of turbosupercharger has obvious oil stain to detect the whether leakage of oil of gas compressor end.
For further illustrating the validity of gas compressor end leakage detection device of the present invention, Oil Leakage Detecting is carried out to turbosupercharger.
Two turbosupercharger choosing same model, respectively as turbosupercharger to be detected, Laboratory Furniture carry out Oil Leakage Detecting test, to test the leakage of oil situation of its gas compressor end under the conditions such as regulation rotating speed, degree of vacuum, working time.
The parameter of experimental facilities is: lubricating oil inlet temperature: >=65 DEG C; Lubricating oil inlet oil pressure: 0.35 ± 0.05Mpa; Compressor volute inlet pressure :≤-6.0Kpa; Compressor volute outlet pressure :≤-2.0Kpa; Turbo charger speed: 23000 ~ 32000r/min; Running time: after parameter stability, running time >=10min.
First turbosupercharger rotating speed be 30000r/min, lubricating oil inlet temperature is 65 DEG C, lubricating oil inlet oil pressure is 0.4Mpa, compressor volute inlet pressure is-8.1Kpa, compressor volute outlet pressure under-4.2Kpa, testing result is oil-proof; Second turbosupercharger rotating speed be 30000r/min, lubricating oil inlet temperature is 65 DEG C, lubricating oil inlet oil pressure is 0.4Mpa, compressor volute inlet pressure be-8.5Kpa, compressor volute outlet pressure under-4.5Kpa, testing result is oil-proof.
As can be seen from experiment parameter and experimental result, inspection compressor volute inner plane, bearing support end face etc., turbosupercharger is under the operating mode of regulation, and Oil Leakage Detecting result is accurate.
Claims (5)
1. a turbosupercharger use for laboratory gas compressor end leakage detection device, it is characterized in that comprising the first electric control valve, be used to indicate the flowmeter of air mass flow, for measure the first B/P EGR Back Pressure Transducer EGR of the suction port place negative pressure pressure of gas compressor end, vacuum pump, the second electric control valve, for measuring described vacuum pump work time the second B/P EGR Back Pressure Transducer EGR of negative pressure pressure of causing and the speed probe for measuring turbo charger speed, the inlet end of the first described electric control valve is unsettled passes into air, the outlet side of the first described electric control valve is connected with the suction port of gas compressor end by described flowmeter, the first described B/P EGR Back Pressure Transducer EGR is arranged on the pipeline that described flowmeter is connected with the suction port of gas compressor end, described vacuum pump is connected with the outlet side of the second described electric control valve, the inlet end of the second described electric control valve is connected with the relief opening of gas compressor end, on the pipeline that the inlet end that the second described B/P EGR Back Pressure Transducer EGR is arranged at the second described electric control valve is connected with the relief opening of gas compressor end, described speed probe is installed on the compressor volute of turbosupercharger.
2. a kind of turbosupercharger use for laboratory gas compressor end leakage detection device according to claim 1, it is characterized in that the first described electric control valve is long-range and be connected with the first potentiometer, the aperture of the first described electric control valve is realized by the first potentiometer telecontrol described in regulating; The second described electric control valve is long-range is connected with the second potentiometer, and the aperture of the second described electric control valve is realized by the second potentiometer telecontrol described in regulating.
3. a kind of turbosupercharger use for laboratory gas compressor end leakage detection device according to claim 1 and 2, is characterized in that the output terminal of the first described B/P EGR Back Pressure Transducer EGR is connected with the first pressure digital display meter; The output terminal of the second described B/P EGR Back Pressure Transducer EGR is connected with the second pressure digital display meter.
4. a kind of turbosupercharger use for laboratory gas compressor end leakage detection device according to claim 3, is characterized in that the output terminal of described speed probe is connected with Digital revolution indicator by amplifier.
5. a kind of turbosupercharger use for laboratory gas compressor end leakage detection device according to claim 4, is characterized in that described speed probe is installed on the suction port place on the compressor volute of rotating shaft place of turbosupercharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635376.XA CN104389802B (en) | 2014-11-13 | 2014-11-13 | A kind of turbocharger use for laboratory is calmed the anger generator terminal leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635376.XA CN104389802B (en) | 2014-11-13 | 2014-11-13 | A kind of turbocharger use for laboratory is calmed the anger generator terminal leakage detection device |
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| Publication Number | Publication Date |
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| CN104389802A true CN104389802A (en) | 2015-03-04 |
| CN104389802B CN104389802B (en) | 2017-09-26 |
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| CN201410635376.XA Active CN104389802B (en) | 2014-11-13 | 2014-11-13 | A kind of turbocharger use for laboratory is calmed the anger generator terminal leakage detection device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881569A (en) * | 2015-04-30 | 2015-09-02 | 东风汽车股份有限公司 | Method for checking pressure resistance of automobile supercharger |
| CN105223008A (en) * | 2015-09-29 | 2016-01-06 | 安徽江淮汽车股份有限公司 | A kind of turbocharger test device |
| CN107795504A (en) * | 2016-08-31 | 2018-03-13 | 山东豪迈机械科技股份有限公司 | Adjustable blower fan system and its adjusting method |
| CN108252961A (en) * | 2017-12-28 | 2018-07-06 | 中国航发四川燃气涡轮研究院 | A kind of axial thrust balancing devices for axial flow compressor performance test |
| CN111379727A (en) * | 2020-04-29 | 2020-07-07 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test method |
| CN111379728A (en) * | 2020-04-29 | 2020-07-07 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test device |
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| CN103063369A (en) * | 2012-12-26 | 2013-04-24 | 中国兵器工业集团第七〇研究所 | Dynamic measurement device of oil leakage of turbocharger and measurement method thereof |
| CN103437884A (en) * | 2013-09-11 | 2013-12-11 | 宁波威孚天力增压技术有限公司 | Lubricating oil control system and method for turbocharger |
| CN103759897A (en) * | 2013-12-30 | 2014-04-30 | 常州环能涡轮动力股份有限公司 | Turbocharger machine core leakage and balance detection system |
| CN204371730U (en) * | 2014-11-13 | 2015-06-03 | 宁波威孚天力增压技术有限公司 | A kind of turbosupercharger use for laboratory gas compressor end leakage detection device |
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2014
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Patent Citations (6)
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| JPH04350327A (en) * | 1991-05-27 | 1992-12-04 | Hitachi Ltd | Supercharger for internal combustion engine |
| JP3979091B2 (en) * | 1999-07-23 | 2007-09-19 | 株式会社日立プラントテクノロジー | Turbo fluid machine and dry gas seal used therefor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881569A (en) * | 2015-04-30 | 2015-09-02 | 东风汽车股份有限公司 | Method for checking pressure resistance of automobile supercharger |
| CN104881569B (en) * | 2015-04-30 | 2018-01-02 | 东风汽车股份有限公司 | Method for checking pressure resistance of automobile supercharger |
| CN105223008A (en) * | 2015-09-29 | 2016-01-06 | 安徽江淮汽车股份有限公司 | A kind of turbocharger test device |
| CN107795504A (en) * | 2016-08-31 | 2018-03-13 | 山东豪迈机械科技股份有限公司 | Adjustable blower fan system and its adjusting method |
| CN108252961A (en) * | 2017-12-28 | 2018-07-06 | 中国航发四川燃气涡轮研究院 | A kind of axial thrust balancing devices for axial flow compressor performance test |
| CN111379727A (en) * | 2020-04-29 | 2020-07-07 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test method |
| CN111379728A (en) * | 2020-04-29 | 2020-07-07 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test device |
| CN111379728B (en) * | 2020-04-29 | 2022-02-11 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test device |
| CN111379727B (en) * | 2020-04-29 | 2022-02-15 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test method |
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Address after: 315034 Zhejiang Province, Ningbo Jiangbei District Cicheng Town Chang Yang Road, No. 268 Applicant after: Ningbo Weifu Tianli turbocharging technology Limited by Share Ltd Address before: 315000 Zhejiang Province, Ningbo Jiangbei District Haichuan Road 168 Lane No. 1 Applicant before: Ningbo Weifu Tianli Turbocharging Technology Co., Ltd. |
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