CN104389802B - A kind of turbocharger use for laboratory is calmed the anger generator terminal leakage detection device - Google Patents
A kind of turbocharger use for laboratory is calmed the anger generator terminal leakage detection device Download PDFInfo
- Publication number
- CN104389802B CN104389802B CN201410635376.XA CN201410635376A CN104389802B CN 104389802 B CN104389802 B CN 104389802B CN 201410635376 A CN201410635376 A CN 201410635376A CN 104389802 B CN104389802 B CN 104389802B
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- anger
- control valve
- generator terminal
- electric control
- turbocharger
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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
Calmed the anger generator terminal leakage detection device the invention discloses a kind of turbocharger use for laboratory, it includes the first electric control valve, flowmeter, the first B/P EGR Back Pressure Transducer EGR, vavuum pump, the second electric control valve, the second B/P EGR Back Pressure Transducer EGR and speed probe；The inlet end of first electric control valve is vacantly passed through air, the outlet side of first electric control valve is connected by flowmeter with the air inlet for generator terminal of calming the anger, first B/P EGR Back Pressure Transducer EGR is arranged on the pipeline that flowmeter is connected with the air inlet for generator terminal of calming the anger, vavuum pump is connected with the outlet side of the second electric control valve, the inlet end of second electric control valve is connected with the exhaust outlet for generator terminal of calming the anger, second B/P EGR Back Pressure Transducer EGR is arranged on the pipeline that the inlet end of the second electric control valve is connected with the exhaust outlet for generator terminal of calming the anger, and speed probe is installed on the compressor volute of turbocharger；Advantage be not only simple in structure, it is easy to adjust, and accuracy of detection is high.
Description
Technical field
The present invention relates to a kind of turbocharger use for laboratory servicing unit, tested more particularly, to a kind of turbocharger
Room generator terminal leakage detection device of calming the anger.
Background technology
Seal oil is generally adopted by maze-type structure in turbocharger, the pressure of lubricating oil it is general 0.25~
Between 0.4Mpa, lubricating oil after maze-type structure reach calm the anger generator terminal when its pressure can close to atmospheric pressure, and due to
The high speed of turbocharger be rotated at the air inlet for generator terminal of calming the anger produce be negative pressure, so if the negative pressure for generator terminal of calming the anger is too
Negative pressure pressure and the imbalance of the pressure of lubricating oil low, then produced at the air inlet for the generator terminal that easily causes to calm the anger, can so lead
Turbocharger is caused in generator terminal oil leak of calming the anger.Therefore, it need to detected before turbocharger is dispatched from the factory in turbocharger laboratory
Its calm the anger generator terminal whether oil leak, and it is existing calm the anger generator terminal leakage detection device measurement negative pressure use measurement mercury mercury
Post height change come at the air inlet for the generator terminal that indicates to calm the anger and exhaust ports negative pressure value, measurement need to borrow measurement range be
1m or so T-square, measurement accuracy of detection is unsatisfactory, while regulation, operation are nor easily；If negative pressure value in addition
When larger, then mercury may be made to overflow leakage, this can affect to experimenter, experimental situation.Therefore having must
Study a kind of high measurement accuracy, and regulation, easy to operate, the safe device for being used to detect generator terminal oil leak of calming the anger.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of turbocharger use for laboratory compressor simple in construction
Leakage detection device is held, its accuracy of detection is high, and easy to operate, work safety.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of turbocharger use for laboratory compressor
Hold leakage detection device, it is characterised in that flowmeter including the first electric control valve, for indicating air mass flow, for measuring
It is first B/P EGR Back Pressure Transducer EGR of negative pressure pressure at the air inlet for generator terminal of calming the anger, vavuum pump, the second electric control valve, described for measuring
Vacuum pump work when caused negative pressure pressure the second B/P EGR Back Pressure Transducer EGR and for measure turbo charger speed rotating speed pass
Sensor；The inlet end of the first described electric control valve is vacantly passed through air, and the outlet side of the first described electric control valve leads to
The air inlet that described flowmeter is crossed with generator terminal of calming the anger is connected, the first described B/P EGR Back Pressure Transducer EGR be arranged at described flowmeter with
On the pipeline of the air inlet connection for generator terminal of calming the anger, described vavuum 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 exhaust outlet for generator terminal of calming the anger, and the second described B/P EGR Back Pressure Transducer EGR is arranged at
On the pipeline that the inlet end of the second described electric control valve is connected with the exhaust outlet for generator terminal of calming the anger, described speed probe is adopted
It is installed on the contactless velocity measuring technique of bar magnet on the compressor volute of turbocharger.
The first described electric control valve is remotely connected with the first potentiometer, and the aperture of the first described electric control valve is led to
The first described potentiometer remote control is overregulated to realize；The second described electric control valve is remotely connected with the second potentiometer,
The aperture of the second described electric control valve is realized by the second potentiometer remote control described in regulation.
The output end of the first described B/P EGR Back Pressure Transducer EGR is connected with first pressure digital display meter；The second described B/P EGR Back Pressure Transducer EGR
Output end be connected with second pressure digital display meter.
The output end of described speed probe is connected with Digital revolution indicator by amplifier；Here, being passed in rotating speed
The output end of sensor connects an amplifier, and the tach signal after amplification is input in Digital revolution indicator, is easy to reality
When show the rotating speed of turbocharger.
Described speed probe is installed at the air inlet on the compressor volute at the rotating shaft of turbocharger.
Compared with prior art, the advantage of the invention is that：By controlling the aperture of the first electric control valve, make flowmeter
Negative pressure at the air inlet of the air mass flow of instruction and generator terminal of calming the anger changes, by controlling opening for the second electric control valve
Degree, the gas of the exhaust outlet discharge at vavuum pump suction compressor end the to calm the anger exhaust outlet negative pressure of generator terminal changes, so
The oil leak situation of the generator terminal of calming the anger of turbocharger under different air inlets, exhaust outlet negative pressure standard can be just measured, is calmed the anger
The aperture of the first electric control valve at the air inlet of generator terminal gets over hour, and the negative pressure at the air inlet for generator terminal of calming the anger is lower；Pressure
The extracting force of the vavuum pump of the exhaust ports at mechanism of qi end is bigger, and the negative pressure of exhaust ports is also lower；So often adjust once,
With regard to that can cause at air inlet, the change of exhaust ports negative pressure, when the parameter stabilities such as the rotating speed of turbocharger operate at least 10 points
It can just detect whether generator terminal of calming the anger has oil leakage phenomenon after clock, the leakage detection device is not only easy to adjust but also selection is high-precision
Sensing equipment cause its accuracy of detection to be also at a relatively high.
Brief description of the drawings
Fig. 1 is the composition structural representation of the generator terminal leakage detection device of calming the anger of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
A kind of turbocharger use for laboratory proposed by the present invention is calmed the anger generator terminal leakage detection device, as illustrated, it is wrapped
Include the first electric control valve 1, the flowmeter 2 for indicating air mass flow, for measure calm the anger generator terminal air inlet at negative pressure pressure
First B/P EGR Back Pressure Transducer EGR 3 of power, vavuum pump 4, the second electric control valve 5, caused negative pressure pressure when being worked for Measuring Vacuum 4
Second B/P EGR Back Pressure Transducer EGR 6 of power and the speed probe 7 for measuring turbo charger speed；First electric control valve 1 enters
Gas end is vacantly passed through air, and the outlet side of the first electric control valve 1 is connected by DN50 pipelines with one end of flowmeter 2, flow
The other end of meter 2 is connected by DN50 pipelines with the air inlet for generator terminal of calming the anger, and the first electric control valve 1 is remotely connected with the first electricity
Position device (not shown), the aperture of the first electric control valve 1 is by adjusting the realization of the first potentiometer remote control, the first negative pressure
Sensor 3 is arranged on the pipeline that flowmeter 2 is connected with the air inlet for generator terminal of calming the anger, you can in flowmeter 2 and generator terminal of calming the anger
Opened on the pipeline of air inlet connection an aperture be used for install the first B/P EGR Back Pressure Transducer EGR 3, the output end of the first B/P EGR Back Pressure Transducer EGR 3 connects
There is first pressure digital display meter 9, vavuum pump 4 is connected with the outlet side of the second electric control valve 5, the air inlet of the second electric control valve 5
Hold and calm the anger the exhaust outlet connection of generator terminal, the second electric control valve 5 is remotely connected with the second potentiometer (not shown), second
The aperture of electric control valve 5 realizes that it is electronic that the second B/P EGR Back Pressure Transducer EGR 6 is arranged at second by adjusting the second potentiometer remote control
On the pipeline that the inlet end of regulating valve 5 is connected with the exhaust outlet for generator terminal of calming the anger, you can the second electric control valve 5 inlet end with
Generator terminal of calming the anger exhaust outlet connection pipeline on open an aperture be used for install the second B/P EGR Back Pressure Transducer EGR 6, the second B/P EGR Back Pressure Transducer EGR 6
Output end is connected with second pressure digital display meter 11, and speed probe 7 is installed on the compressor at the rotating shaft of turbocharger
At the enterprising gas port of spiral case, the output end 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 use existing electric control valve；
Flowmeter 2 and vavuum pump 4 use prior art；First B/P EGR Back Pressure Transducer EGR 3 and the second B/P EGR Back Pressure Transducer EGR 6 are using existing negative
Pressure sensor；Speed probe 7 uses prior art, and the compressor for generator terminal of calming the anger actually is fixed on using non-contacting bar magnet
The shaft end in the turbine shaft of reply turbocharger before the rotating speed of turbocharger, but experiment is measured at the air inlet of spiral case
Nut opposite side is magnetized, so when the axis of rotation of turbocharger, with magnetic shaft end nut synchronous axial system therewith,
The speed probe being made up of mistor as sensing element exports the pulse signal related to speed, reaches inspection of testing the speed
The purpose of survey；Speed probe is arranged close on the compressor volute at the rotating shaft of turbocharger, it is desirable to shaft end nut
Material can carry out opposite side with magnetic material and magnetize, and the selection of the material of other parts in the rotating shaft of turbocharger is all
It can not be magnetized with magnetic material；In addition, generator terminal temperature of calming the anger is more much lower than the temperature of turbine end, speed probe is pacified
It is installed adjacent on the compressor volute at the rotating shaft of turbocharger that the influence to its measurement accuracy can be avoided；First potentiometer
Existing potentiometer is used with the second potentiometer；First pressure digital display meter 9 and second pressure digital display meter 11 are using existing
Pressure digital display meter；Amplifier 12 and Digital revolution indicator 13 use prior art.
When the generator terminal leakage detection device of calming the anger of the present invention works, first pass through high-temperature fuel gas to adjust turning for turbocharger
Speed come change reach setting needed for rotating speed, then by adjust the first potentiometer control the first electric control valve aperture, make
The negative pressure at air mass flow and the air inlet for generator terminal of calming the anger that flowmeter is indicated changes, and is controlled by adjusting the second potentiometer
The aperture of second electric control valve, negative pressure caused by the gas that the exhaust outlet for making vavuum pump aspirate compressor end is discharged becomes
Change, so often adjust once, with regard to can cause air inlet, exhaust outlet negative pressure change, when the parameters such as the rotating speed of turbocharger are steady
Fixed operating closes generator terminal leakage detection device of calming the anger after at least 10 minutes, then takes the spiral case for generator terminal of calming the anger apart, checks generator terminal of calming the anger
Exhaust outlet runner, whether have obvious oil stain at the bearing body large end face of turbocharger detect calm the anger generator terminal whether oil leak.
For the validity for the generator terminal leakage detection device of calming the anger for further illustrating the present invention, oil leak is carried out to turbocharger
Detection.
Two turbocharger of same model are chosen respectively as turbocharger to be detected, are carried out on experimental bench
Oil Leakage Detecting is tested, to test the oil leak situation of its generator terminal of being calmed the anger under the conditions of egulation rotating speed, vacuum, run time etc..
The parameter of experimental facilities is：Lubricating oil inlet temperature：≥65℃；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；The duration of runs：After parameter stability, the duration of runs >=10min.
First turbocharger is that 30000r/min, lubricating oil inlet temperature are 65 DEG C, lubricating oil inlet oil in rotating speed
Pressure is that 0.4Mpa, compressor volute inlet pressure are testing result under -8.1Kpa, compressor volute outlet pressure are -4.2Kpa
To be oil-proof；Second turbocharger is that 30000r/min, lubricating oil inlet temperature are 65 DEG C, lubricating oil inlet oil in rotating speed
Pressure is that 0.4Mpa, compressor volute inlet pressure are testing result under -8.5Kpa, compressor volute outlet pressure are -4.5Kpa
To be oil-proof.
From experiment parameter and experimental result, check that compressor volute inner plane, bearing body end face etc. can be seen that turbine and increase
Depressor is under defined operating mode, and Oil Leakage Detecting result is accurate.
Claims (5)
- The generator terminal leakage detection device 1. a kind of turbocharger use for laboratory is calmed the anger, it is characterised in that including the first motorized adjustment The first negative pressure sensing of negative pressure pressure at valve, the flowmeter for indicating air mass flow, the air inlet for measuring generator terminal of calming the anger Device, vavuum pump, the second electric control valve, for measuring described vacuum pump work when caused negative pressure pressure the second negative pressure pass Sensor and the speed probe for measuring turbo charger speed；The inlet end of the first described electric control valve is vacantly passed through Air, the outlet side of the first described electric control valve is connected by described flowmeter with the air inlet for generator terminal of calming the anger, described The first B/P EGR Back Pressure Transducer EGR be arranged on the pipeline that described flowmeter is connected with the air inlet for generator terminal of calming the anger, described vavuum pump It is connected with the outlet side of the second described electric control valve, the row of the inlet end of described the second electric control valve and generator terminal of calming the anger Gas port is connected, and the second described B/P EGR Back Pressure Transducer EGR is arranged at the row of the inlet end of the second described electric control valve and generator terminal of calming the anger On the pipeline of gas port connection, described speed probe is installed on the compressor volute of turbocharger.
- The generator terminal leakage detection device 2. a kind of turbocharger use for laboratory according to claim 1 is calmed the anger, its feature exists The first potentiometer is remotely connected with the first described electric control valve, the aperture of the first described electric control valve passes through regulation The first described potentiometer remote control is realized；The second described electric control valve is remotely connected with the second potentiometer, described The aperture of second electric control valve is realized by the second potentiometer remote control described in regulation.
- Generator terminal leakage detection device, its feature 3. a kind of turbocharger use for laboratory according to claim 1 or 2 is calmed the anger It is that the output end of the first described B/P EGR Back Pressure Transducer EGR is connected with first pressure digital display meter；The second described B/P EGR Back Pressure Transducer EGR it is defeated Go out end and be connected with second pressure digital display meter.
- The generator terminal leakage detection device 4. a kind of turbocharger use for laboratory according to claim 3 is calmed the anger, its feature exists Digital revolution indicator is connected with by amplifier in the output end of described speed probe.
- The generator terminal leakage detection device 5. a kind of turbocharger use for laboratory according to claim 4 is calmed the anger, its feature exists It is installed in described speed probe at the air inlet on the compressor volute at the rotating shaft of turbocharger.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN104389802A CN104389802A (en) | 2015-03-04 |
| CN104389802B true CN104389802B (en) | 2017-09-26 |
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| 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 |
| CN111379727B (en) * | 2020-04-29 | 2022-02-15 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test method |
| CN111379728B (en) * | 2020-04-29 | 2022-02-11 | 北京动力机械研究所 | Closed circulation centrifugal compressor characteristic test device |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04350327A (en) * | 1991-05-27 | 1992-12-04 | Hitachi Ltd | Supercharger for internal combustion engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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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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