CN101520360A - Turbocharger lubricating oil leakage detection device - Google Patents

Turbocharger lubricating oil leakage detection device Download PDF

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Publication number
CN101520360A
CN101520360A CN200910081519A CN200910081519A CN101520360A CN 101520360 A CN101520360 A CN 101520360A CN 200910081519 A CN200910081519 A CN 200910081519A CN 200910081519 A CN200910081519 A CN 200910081519A CN 101520360 A CN101520360 A CN 101520360A
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CN
China
Prior art keywords
lubricating oil
supercharger
oil
turbocharger
fuel tank
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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
Application number
CN200910081519A
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Chinese (zh)
Inventor
张志强
施新
鲍捷
马朝臣
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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Filing date
Publication date
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Priority to CN200910081519A priority Critical patent/CN101520360A/en
Publication of CN101520360A publication Critical patent/CN101520360A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a turbocharger lubricating oil leakage detection device which relates to the electromechanical field, in particular to a test station capable of quantitatively measuring the lubricating oil leakage rate of a turbocharger in different running states. The turbocharger lubricating oil leakage detection device comprises a supercharger to be tested, a lubricating oil feeding and discharging pipe, an adjusting valve, a supercharger lubricating oil pump and a sensor for testing; a lubricating oil tank of a supercharger lubricating oil system comprises a lubricating oil measuring oil tank and a lubricating oil standby oil tank which are communicated with each other through a lubricating oil filling control valve; and a compressor air intake adjusting valve is installed on an inlet of a compressor of a turbocharger to be tested. The turbocharger lubricating oil leakage detection device detects the lubricating oil leakage according to the theory that the decrement of the lubricating oil of the turbocharger lubricating oil system under the working condition of normal running is just the leakage rate of the lubricating oil of the turbocharger, thereby the leakage rate of the lubricating oil system is obtained through testing the decrement of the lubricating oil quality of the lubricating oil system after the turbocharger lubricating oil stably runs for a certain time.

Description

Turbocharger lubricating oil leakage detection device
Technical field
The present invention is a turbocharger lubricating oil leakage detection device, relates to dynamo-electric field, is a kind of device that can test the turbocharger lubricating oil leakage rate at supercharger manufacturer or the exploitation of supercharger research unit.
Background technology
Turbosupercharger is the critical component of modern engine with supercharger, generally adopt floating type bearing, between supercharger bearing and armature spindle, supercharger bearing and housing, all there is the gap, in order to prevent to leak, packoff is housed in turbosupercharger, on the one hand, prevents that oil leak is to end or the turbine end of calming the anger, on the other hand, prevent that the pressurized air of pneumatic plant end or the high-temp waste gas of turbine end from leaking in the middle case.During oil leak, the lighter causes the engine chamber carbon distribution, increase the engine particulate matter discharge capacity, weight person can cause grease gum deposit in the cylinder, cause sticking of piston rings, valve stem to be killed, simultaneously, the supercharger leakage of oil will speed up its bearing wear, causes faults such as engine performance deterioration even supercharger damage.
The leakage of oil problem of turbosupercharger is not only relevant with structure, the tolerance clearance of itself packoff, also exists confidential relation with installation and user mode.Along with turbosupercharger further develops to miniaturization, high speed direction, also improved requirement to the supercharger sealing device structure designs and material is selected direction for use.Therefore, measure the turbocharger lubricating oil leakage characteristics, not only can be used to evaluate the effect of turbosupercharger packoff, the technical parameter when determining the processing of supercharger packoff and installing also has important directive significance to supercharger installation and operation state in use.
Up to the present, the domestic device that is not specifically designed to the detection of turbocharger lubricating oil leakage rate, the improvement of lubricating system hermetically-sealed construction can't be estimated, the sealing property of lubricating oil system can't obtain check when supercharger dispatched from the factory, make in the use of supercharger, the supercharger oil leak become a kind of comparatively general phenomenon, the fault that engine with supercharger brings out owing to the supercharger oil leak also frequently takes place.
Retrieve through domestic and foreign literature, do not find to be used for the device that the turbocharger lubricating oil leakage rate detects, at this situation, the present invention has designed a kind of device that the turbocharger lubricating oil leakage rate detects that is specifically designed to, this pick-up unit can be installed to turbocharger performance test bed on, measure the leakage rate of turbosupercharger lubricating oil under various applying working conditions.
Summary of the invention
Turbosupercharger in use, the loss of lubricating oil mainly comprises two parts: a part is because the lubrication oil consumption that causes of oil leak, and another part then is because high temperature causes lubricating oil to evaporate the lubrication oil consumption that causes.Because the boiling point higher (more than 300 ℃) of lubricating oil, supercharger is under situation about running well, and lubricating oil temperature is difficult to reach boiling temperature, only works as the supercharger rotor system and breaks down, sound partly comes in contact friction and causes under the situation of localized hyperthermia, and Evaporation Phenomenon just can take place.Therefore, when supercharger ran well, the leakage rate of supercharger lubricating oil system lubricating oil equaled the reduction of supercharger lubricating oil system lubricating oil.
At said circumstances, the invention provides a kind of testing table of measuring the supercharger oil leak, it detects principle: test bed by regulating turbocharger performance, supercharger is operated under a certain user mode and after stable operation a period of time, the record lubricating oil system is measured the quality m of lubricating oil in the fuel tank 1, behind operation a period of time Δ t, the quality m of lubricating oil in the fuel tank measured this moment in record once more 2Because supercharger steady running, the quality of lubrication oil of being stored in lubricating pipe and the intermediate is constant, like this, the average leaked rate Δ m of turbocharger lubricating oil is that this section measured the reduction Δ m of the quality of lubrication oil in the fuel tank and the ratios delta t of working time in the period under this operating mode, as shown in Equation (1).
Δ m . = Δm Δt = ( m 1 - m 2 ) Δt - - - ( 1 )
By regulating each variable valve on the testing table, turbocharger lubricating oil leakage measuring instrumentation testing table can be simulated the various running statuses of turbosupercharger on engine, and measures the average leaked rate of lubricating oil under this running status; Thereby obtain supercharger oil leak characteristic.
Beneficial effect
The present invention adopts the weight method principle to measure the oil leak amount, has filled up the blank that does not have directly to measure supercharger oil leak measuring device at present both at home and abroad.The supercharger lubricating oil measurement mechanism of invention is simple in structure, easy to operate, is an independent measurement mechanism that gets, and can be applied in easily on the various booster performance measuring test-bed, and can use the grease-box of former testing table, can the function of former testing table not exerted an influence.The measurement result of this measurement mechanism can be used for the assessment of supercharger seal oil structural behaviour, instructs determining of hermetically-sealed construction parameter, has important practical significance to improving China's supercharger reliability of operation.
Description of drawings
Fig. 1 is a turbocharger lubricating oil leakage rate measurement mechanism structural representation
Fig. 2 is the mobile snubber assembly enlarged drawing of lubricating oil
Among the figure: supercharger 1 to be measured, lube oil inlet pipe 2, lubricating oil draw-off pipe 3, cooling water inflow variable valve 4, lubricating oil inlet temperature sensor 5, lubricating oil inlet pressure transducer 6, lube oil cooler 7, lubricating oil repairing operation valve 8, reserve fuel tank 9, the lubricating oil operation valve 10 of draining the oil, lubricating oil return operation valve 11, lubricating oil is measured fuel tank 12, precise electronic measurement scale 13, adjustable height mounting table 14, lubricating oil flow snubber assembly 15-1,15-2, supercharger lube oil pump 16, filter cleaner 17, compressor air inlet machine variable valve 18.The flow purpose of snubber assembly of lubricating oil is to reduce and is immersed in the lubricated influence of flowing of lubricating oil in lube oil inlet pipe 2 in the fuel tank 12, the lubricating oil draw-off pipe 3 when lubricating oil measured quality of lubrication oil in the fuel tank 12 and measure of measuring.
Embodiment
As shown in Figure 1, lube oil inlet pipe 2 one ends are connected with lubricating oil inlet on supercharger 1 intermediate to be measured, the other end is connected with lube oil cooler 7, from supercharger 1 one ends to be measured, lubricating oil temperature sensor 2, lubricant pressure sensor 6 are installed successively on the lube oil inlet pipe 2; The other end of lube oil cooler 7 links to each other with filter cleaner 17, and cooling water inflow variable valve 4 is housed on the lube oil cooler rising pipe, the flow that is used for regulating chilled water with the temperature of control supercharger lubricating oil inlet in the scope that needs; The other end of filter cleaner 17 is connected with the outlet of the supercharger lube oil pump 16 that is driven by variable-frequency motor; The induction pipe of supercharger lube oil pump 16 is equipped with the mobile snubber assembly 15-2 of lubricating oil and is immersed in lubricating oil to be measured in the fuel tank 12,, flow to the influence of quality of lubrication oil measurement in the lubricating oil test fuel tank 12 to reduce lubricating oil; Lubricating oil draw-off pipe 3 one ends link to each other with oil-out on supercharger 1 intermediate to be measured, and the other end links to each other with lubricating oil return operation valve 11; Between supercharger 1 to be measured and lubricating oil return operation valve 11, lubricating oil draw-off pipe 3 links to each other with reserve fuel tank 9 by lubricating oil repairing operation valve 8, reserve fuel tank 9 is placed and highly is higher than lubricating oil measurement fuel tank 12, measures at lubricating oil and can utilize gravity the lubricating oil in the reserve fuel tank 9 to be added to by lubricating oil draw-off pipe 3 in the lubricating oil measurement fuel tank 12 by opening lubricating oil repairing operation valve 8 when lubricants capacity is not enough in the fuel tank 12; Between lubricating oil draw-off pipe 3 and lubricating oil repairing operation valve 8 junctions and lubricating oil return operation valve 11, the lubricating oil operation valve 10 of draining the oil links to each other with lubricating oil draw-off pipe 3 by pipeline, be used with lubricating oil return operation valve 11, can reduce the lubricants capacity that lubricating oil is measured fuel tank 12; Control in the suitable scope by regulating lubricating oil repairing operation valve 8, the lubricating oil lubricants capacity that operation valve 10, lubricating oil return operation valve 11 can test lubricating oil in the fuel tank 12 of draining the oil like this, so that accurately measure the variation of quality of lubrication oil in the lubricating oil test fuel tank 10; Lubricating oil return operation valve 11 other ends are equipped with the mobile snubber assembly 15-1 of a lubricating oil and are immersed in lubricating oil to be measured in the fuel tank 12, flows to the influence of quality of lubrication oil measurement in the lubricating oil test fuel tank 12 to reduce lubricating oil; Precise electronic measurement scale 13 is placed on the adjustable height mounting table 14, can change flow snubber assembly 15-1,15-2 of lubricating oil by the height of regulating adjustable height mounting table 14 and immerse the degree of depth in the oil, immerse the influence that the degree of depth in the oil is measured quality of lubrication oil in the lubricating oil test fuel tank 12 to reduce flow snubber assembly 15-1,15-2 of lubricating oil; Lubricating oil is measured fuel tank 12 and is adopted the lightweight transparent material, alleviates the fuel tank quality on the one hand, can observe the height of liquid level in the fuel tank on the other hand from the outside; Compressor air inlet machine variable valve 18 is used for regulating the pressure of turbosupercharger 1 compressor inlet to be measured, the needs that are used for simulating turbosupercharger running status on engine, and simultaneously, the compressor inlet negative pressure can be quickened the leakage of supercharger lubricating oil, shortens Measuring Time.
The specific implementation method of supercharger oil leak measurement amount is as follows:
Before on-test, lubricating oil return operation valve 11 is in opening, and drain the oil operation valve 10 and cooling water inflow variable valve 4 of lubricating oil repairing operation valve 8, lubricating oil all is in closed condition.
The startup of first step testing table and adjusting
For the required lubricants capacity of supercharger lubricating oil system, the leakage rate of supercharger lubricating oil only accounts for a very little part, for the accuracy of measuring, the volume of lubricating oil measurement fuel tank 12 is less, in the process of supercharger startup and entry into service, in order to prevent to cause measuring lubricating oil shortage in the fuel tank owing to having stored lubricating oil in lubricating pipe and the supercharger, should be according to the lubricated situation of change of measuring liquid level in the fuel tank 12, in time from lubricating oil reserve fuel tank 9, measure make-up oil in the fuel tank 12, to satisfy the needs that supercharger 1 to be measured runs well to lubricating oil by lubricating oil repairing operation valve 8.
The adjusting that the second step lubricating oil system is measured state
Regulating drain the oil operation valve 10, lubricating oil return operation valve 11 of lubricating oil repairing operation valve 8, lubricating oil can measure lubricating oil lubricants capacity in the fuel tank 12 and control to and satisfy the required minimum lubrication oil mass of supercharger 1 normal operation to be measured; Simultaneously, the rotating speed of adjusting cooling water inflow variable valve 4 and supercharger lube oil pump 16 is adjusted to the required pressure and temperature scope of test with lubricating oil; Regulate adjustable height mounting table 14 and observe the relative height that lubricating oil is measured flow in the fuel tank 12 snubber assembly and lubricating oil liquid level, be adjusted to the oil of dip lubrication just until snubber assembly 15-1 that lubricating oil is flowed and measure under fuel tank 12 liquid levels, it is minimum that the influence that its buoyancy is measured quality of lubrication oil reaches.
The 3rd pacing amount oil leak rate
After supercharger stable operation a period of time, write down the quality m of lubricating oil in the lubricating oil measurement fuel tank 12 under this running status of a certain moment 1, behind Δ t after a while, record lubricating oil is measured the quality of lubrication oil m in the fuel tank 12 2, utilize formula (1) can obtain the oil leak rate of supercharger 1 to be measured under this operating condition.
If precise electronic measurement scale output signal is imported robot calculator, can write down automatically and output test result.
Change the running status of supercharger 1 to be measured by regulating testing table, repeat second and third step can obtain the oil leak characteristic of turbosupercharger 1 to be measured under various different operating conditions.

Claims (5)

1. turbocharger lubricating oil leakage detection device, comprise supercharger to be measured, lubricating oil oil-feed draw-off pipe, variable valve, supercharger lube oil pump and test required sensor, it is characterized in that supercharger lubricating oil system grease-box comprises lubricating oil measurement fuel tank 12 and lubricating oil reserve fuel tank 9, lubricating oil is measured fuel tank 12 and is connected by lubricating oil repairing operation valve 8 with lubricating oil reserve fuel tank 9, and turbosupercharger 1 compressor inlet to be measured is equipped with compressor air inlet machine variable valve 18.
2. turbocharger lubricating oil leakage detection device according to claim 1, it is characterized in that adopting weight method to measure the leakage rate of supercharger lubricating oil, measure fuel tank 12 underneath at lubricating oil and be equipped with weighing-appliance electronic surveying scale 13, lubricating oil is measured fuel tank 12 and electronic surveying scale 13 is placed on the adjustable height mounting table 14.
3. turbocharger lubricating oil leakage detection device according to claim 1 is characterized in that being immersed in lubricating oil and measures the end of lube oil inlet pipe 2 in the fuel tank 12, lubricating oil draw-off pipe 3 lubricating oil flow snubber assembly 15-1,15-2 are housed respectively.
4. turbocharger lubricating oil leakage detection device according to claim 3 is characterized in that lube oil cooler 7 is housed on lube oil inlet pipe 2, and cooling water inflow variable valve 4 is housed on lube oil cooler 7.
5. turbocharger lubricating oil leakage detection device according to claim 1 is characterized in that supercharger lube oil pump 16 is driven by variable-frequency motor.
CN200910081519A 2009-04-10 2009-04-10 Turbocharger lubricating oil leakage detection device Pending CN101520360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910081519A CN101520360A (en) 2009-04-10 2009-04-10 Turbocharger lubricating oil leakage detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910081519A CN101520360A (en) 2009-04-10 2009-04-10 Turbocharger lubricating oil leakage detection device

Publications (1)

Publication Number Publication Date
CN101520360A true CN101520360A (en) 2009-09-02

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575473A (en) * 2012-07-30 2014-02-12 广西玉柴机器股份有限公司 Engine water circulation oil leakage detection system and method for utilizing system to perform oil leakage detection
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
CN103954410A (en) * 2014-04-25 2014-07-30 哈尔滨飞机工业集团有限责任公司 Airplane floater valve sealing performance test detection equipment
CN104677637A (en) * 2015-03-11 2015-06-03 句容五星机械制造有限公司 Method for detecting large engine oil consumption amount of diesel engine
CN104849001A (en) * 2015-06-09 2015-08-19 国网山东济南市历城区供电公司 Monitoring alarm device and method for oil leakage of transformer
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
CN109506940A (en) * 2018-12-04 2019-03-22 中国航发贵阳发动机设计研究所 Civil engine oil system vane type radially receives oil ring test method
CN111157182A (en) * 2020-01-15 2020-05-15 东风汽车集团有限公司 Engine oil sealing test method of supercharger

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575473A (en) * 2012-07-30 2014-02-12 广西玉柴机器股份有限公司 Engine water circulation oil leakage detection system and method for utilizing system to perform oil leakage detection
CN103575473B (en) * 2012-07-30 2015-11-25 广西玉柴机器股份有限公司 Engine water circulation Oil Leakage Detecting system and apply the method that this system carries out Oil Leakage Detecting
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
CN103759897B (en) * 2013-12-30 2016-05-11 常州环能涡轮动力股份有限公司 Turbocharger movement leaks and balance master system
CN103954410A (en) * 2014-04-25 2014-07-30 哈尔滨飞机工业集团有限责任公司 Airplane floater valve sealing performance test detection equipment
CN103954410B (en) * 2014-04-25 2016-06-29 哈尔滨飞机工业集团有限责任公司 A kind of aircraft float valve seal tightness test detection equipment
CN104677637A (en) * 2015-03-11 2015-06-03 句容五星机械制造有限公司 Method for detecting large engine oil consumption amount of diesel engine
CN104849001A (en) * 2015-06-09 2015-08-19 国网山东济南市历城区供电公司 Monitoring alarm device and method for oil leakage of transformer
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
CN109506940A (en) * 2018-12-04 2019-03-22 中国航发贵阳发动机设计研究所 Civil engine oil system vane type radially receives oil ring test method
CN109506940B (en) * 2018-12-04 2020-06-02 中国航发贵阳发动机设计研究所 Impeller type radial oil collecting ring test method for civil aviation engine lubricating oil system
CN111157182A (en) * 2020-01-15 2020-05-15 东风汽车集团有限公司 Engine oil sealing test method of supercharger

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Open date: 20090902