CN103411785A - Method for measuring performance of centrifugal ventilator - Google Patents
Method for measuring performance of centrifugal ventilator Download PDFInfo
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- CN103411785A CN103411785A CN2013103535649A CN201310353564A CN103411785A CN 103411785 A CN103411785 A CN 103411785A CN 2013103535649 A CN2013103535649 A CN 2013103535649A CN 201310353564 A CN201310353564 A CN 201310353564A CN 103411785 A CN103411785 A CN 103411785A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims abstract description 39
- 239000010687 lubricating oil Substances 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Abstract
A testing system adopted in a method for measuring performance of a centrifugal ventilator comprises a power driving system, a fuel oil system, a lubricating oil system, an air system and a testing operation system. The testing system comprises an air inlet, a tail gas outlet with a collecting device, and three channels, namely a gas circuit, an oil circuit and an oil-gas mixing circuit; when separation efficiency testing is carried out, oil and gas in a mixing box are separated through the ventilator in high-speed rotation, every time when test items are completed, a valve on the bottom of a test shell body is opened to collect, and the quality of separated lubricating oil is measured; in testing, through changing of the output rotating speed of a gearbox and flow and the temperature of mixed gas in an inlet of the ventilator, separation efficiency and resistance of the ventilator under different states can be measured. The method has the advantages that development testing can be carried out on novel centrifugal ventilators of engines of various models, whether performance of the centrifugal ventilators is qualified or not can be judged, and reliable utilization of a novel centrifugal ventilator of an engine is guaranteed.
Description
Technical field
The present invention relates to the ventilating system of aero gas turbine engine, particularly a kind of method of measuring centrifugal ventilator performance.
Background technology
In all types of engines and the application of combustion machine, centrifugal ventilator in lubricating system is the requisite critical component of lubricating system, principle is all to utilize centrifugal force and lubricating oil to separate being mixed in airborne lubricating oil with the density difference of air, thereby reduces the lubricating oil in breathing of engine and then reduce lube use rate.The quality of ventilator performance, determine that in the engine unit interval, the lubricating oil outside the discharge machine is how many, and the lubricating oil amount on engine is limited, and the lube use rate senior general of unit interval affects the time of engine continuous firing, then affects the ultimate run of fighter plane.The novel centrifugal ventilator is mainly to adopt novel ventilation body to carry out gas-oil separation, and therefore centrifugal ventilator, before application on engine, need to first be carried out its performance of experimental measurement.How to measure in test the centrifugal ventilator performance of engine and just become the key that test is carried out.
Summary of the invention
The objective of the invention is for the centrifugal ventilator performance of Measurement accuracy engine, the spy provides a kind of method of measuring centrifugal ventilator performance.
The invention provides a kind of method of measuring centrifugal ventilator performance, it is characterized in that: the method for the centrifugal ventilator performance of described measurement, the pilot system adopted, comprise that power-driven system, fuel system, oil system, air system and test control system form; Test method is: comprise an air in and the outlet of the tail gas with collector, and gas circuit, oil circuit and three, air-fuel mixture road path;
After the lubricating oil heating, exported through for the oil circuit nozzle, spraying into the blending case by oil pump, with the pressurized air of certain flow after heating, enter the blending case and carry out blending, oil gas after blending enters in the casing that centrifugal ventilator is housed, through casing, enter centrifugal ventilator again, centrifugal ventilator High Rotation Speed, by gas-oil separation; Isolated lubricating oil directly flows into swab case from the casing housing bottom, gas after separation is discharged from centrifugal ventilator outlet, not separated gas-oil mixture is discharged in the tail gas collector by the hollow pipeline, and this device utilizes degreasing cotton to collect residual a small amount of lubricating oil in tail gas; In addition, distribution situation for the residual droplets in gas-oil mixture not separated in the demonstration test process, Ma Erwen instrument measuring equipment is set in ventilator and collector, in order to measure the mean grain size of residual oil globule in tail gas, different-diameter oil droplet number percent, and particle size parameters rate over time;
While carrying out the separation efficiency test, in the blending case, oil gas is carried out gas-oil separation by the ventilator of High Rotation Speed, and isolated lubricating oil finally collects in the trial shell bottom, and each pilot project is complete, open the trial shell bottom valve and collect, measure isolated lubricating oil quality m1; Not separated lubricating oil is present in tail gas with little olesome form, the quality of test pre-test tail gas collector, during off-test, again measure, the difference of the two is in tail gas the quality m2 that does not separate lubricating oil, the separation efficiency η of ventilator=m1/ (m1+m2);
While carrying out resistance test, in process of the test, measure respectively the pressure P 2 of the mixed gas in the cavity of testpieces place and the gaseous tension P4 of ventilator outlet, by the front and back pressure differential, can draw the pressure drag of testpieces;
Ventilation, rotating speed and temperature are the analog parameter of test; During test, can, by the output speed that changes gear case, flow and the temperature of ventilator entrance mixed gas, measure separation efficiency and the resistance of ventilator under different conditions.
Described Ma Erwen instrument measuring equipment is Winner318A industry spraying laser particle size analyzer.
Advantage of the present invention:
The method of the centrifugal ventilator performance of measurement of the present invention, can carry out development test and judge whether the performance of novel centrifugal ventilator is qualified the novel centrifugal ventilator of all kinds of model engines, the reliable use that guarantees the centrifugal ventilator of engine new is all played to irreplaceable effect.
The accompanying drawing explanation
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is for measuring the schematic flow sheet of centrifugal ventilator performance;
Fig. 2 is the tail gas collecting device schematic diagram.
Embodiment
Embodiment 1
The present embodiment provides a kind of method of measuring centrifugal ventilator performance, it is characterized in that: the method for the centrifugal ventilator performance of described measurement, the pilot system adopted, comprise that power-driven system, fuel system, oil system, air system and test control system form; Test method is: comprise an air in and the outlet of the tail gas with collector, and gas circuit, oil circuit and three, air-fuel mixture road path;
After the lubricating oil heating, exported through for the oil circuit nozzle, spraying into the blending case by oil pump, with the pressurized air of certain flow after heating, enter the blending case and carry out blending, oil gas after blending enters in the casing that centrifugal ventilator is housed, through casing, enter centrifugal ventilator again, centrifugal ventilator High Rotation Speed, by gas-oil separation; Isolated lubricating oil directly flows into swab case from the casing housing bottom, gas after separation is discharged from centrifugal ventilator outlet, not separated gas-oil mixture is discharged in the tail gas collector by the hollow pipeline, and this device utilizes degreasing cotton to collect residual a small amount of lubricating oil in tail gas; In addition, distribution situation for the residual droplets in gas-oil mixture not separated in the demonstration test process, Ma Erwen instrument measuring equipment is set in ventilator and collector, in order to measure the mean grain size of residual oil globule in tail gas, different-diameter oil droplet number percent, and particle size parameters rate over time;
While carrying out the separation efficiency test, in the blending case, oil gas is carried out gas-oil separation by the ventilator of High Rotation Speed, and isolated lubricating oil finally collects in the trial shell bottom, and each pilot project is complete, open the trial shell bottom valve and collect, measure isolated lubricating oil quality m1; Not separated lubricating oil is present in tail gas with little olesome form, the quality of test pre-test tail gas collector, during off-test, again measure, the difference of the two is in tail gas the quality m2 that does not separate lubricating oil, the separation efficiency η of ventilator=m1/ (m1+m2);
While carrying out resistance test, in process of the test, measure respectively the pressure P 2 of the mixed gas in the cavity of testpieces place and the gaseous tension P4 of ventilator outlet, by the front and back pressure differential, can draw the pressure drag of testpieces;
Ventilation, rotating speed and temperature are the analog parameter of test; During test, can, by the output speed that changes gear case, flow and the temperature of ventilator entrance mixed gas, measure separation efficiency and the resistance of ventilator under different conditions.
Described Ma Erwen instrument measuring equipment is Winner318A industry spraying laser particle size analyzer.
Claims (2)
1. method of measuring centrifugal ventilator performance is characterized in that: the method for the centrifugal ventilator performance of described measurement, and the pilot system of employing, comprise that power-driven system, fuel system, oil system, air system and test control system form; Test method is: comprise an air in and the outlet of the tail gas with collector, and gas circuit, oil circuit and three, air-fuel mixture road path;
After the lubricating oil heating, exported through for the oil circuit nozzle, spraying into the blending case by oil pump, with the pressurized air of certain flow after heating, enter the blending case and carry out blending, oil gas after blending enters in the casing that centrifugal ventilator is housed, through casing, enter centrifugal ventilator again, centrifugal ventilator High Rotation Speed, by gas-oil separation; Isolated lubricating oil directly flows into swab case from the casing housing bottom, gas after separation is discharged from centrifugal ventilator outlet, not separated gas-oil mixture is discharged in the tail gas collector by the hollow pipeline, and this device utilizes degreasing cotton to collect residual a small amount of lubricating oil in tail gas; In addition, distribution situation for the residual droplets in gas-oil mixture not separated in the demonstration test process, Ma Erwen instrument measuring equipment is set in ventilator and collector, in order to measure the mean grain size of residual oil globule in tail gas, different-diameter oil droplet number percent, and particle size parameters rate over time;
While carrying out the separation efficiency test, in the blending case, oil gas is carried out gas-oil separation by the ventilator of High Rotation Speed, and isolated lubricating oil finally collects in the trial shell bottom, and each pilot project is complete, open the trial shell bottom valve and collect, measure isolated lubricating oil quality m1; Not separated lubricating oil is present in tail gas with little olesome form, the quality of test pre-test tail gas collector, during off-test, again measure, the difference of the two is in tail gas the quality m2 that does not separate lubricating oil, the separation efficiency η of ventilator=m1/ (m1+m2);
While carrying out resistance test, in process of the test, measure respectively the pressure P 2 of the mixed gas in the cavity of testpieces place and the gaseous tension P4 of ventilator outlet, by the front and back pressure differential, can draw the pressure drag of testpieces;
Ventilation, rotating speed and temperature are the analog parameter of test; During test, can, by the output speed that changes gear case, flow and the temperature of ventilator entrance mixed gas, measure separation efficiency and the resistance of ventilator under different conditions.
2. according to the method for the centrifugal ventilator performance of measurement claimed in claim 1, it is characterized in that: described Ma Erwen instrument measuring equipment is Winner318A industry spraying laser particle size analyzer.
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| CN2013103535649A CN103411785A (en) | 2013-08-14 | 2013-08-14 | Method for measuring performance of centrifugal ventilator |
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| CN2013103535649A CN103411785A (en) | 2013-08-14 | 2013-08-14 | Method for measuring performance of centrifugal ventilator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897404A (en) * | 2015-06-18 | 2015-09-09 | 哈尔滨工程大学 | Experimental device and method for measuring performance of centrifugal ventilator |
| CN106446316A (en) * | 2016-05-13 | 2017-02-22 | 中国航空工业集团公司沈阳发动机设计研究所 | Design method for centrifugal ventilator adopting honeycomb structure |
| CN107014620A (en) * | 2017-06-01 | 2017-08-04 | 中国航发湖南动力机械研究所 | Measure the test method and experimental rig of eccentric contract lube use rate |
| CN108709728A (en) * | 2018-05-24 | 2018-10-26 | 中国航发湖南动力机械研究所 | Eccentric contract performance test apparatus |
| CN112326226A (en) * | 2020-11-05 | 2021-02-05 | 中国航发沈阳发动机研究所 | Resistance calculation method for impeller type centrifugal ventilator |
| CN112780415A (en) * | 2021-02-22 | 2021-05-11 | 中国航发沈阳发动机研究所 | Double-margin lubricating oil difference detection method and device for aircraft engine lubricating oil system |
| CN112985872A (en) * | 2021-05-20 | 2021-06-18 | 成都康拓兴业科技有限责任公司 | Oil mist separation and transportation test bed and test method of aviation oil mist separator |
-
2013
- 2013-08-14 CN CN2013103535649A patent/CN103411785A/en active Pending
Non-Patent Citations (4)
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| K.WILLENBORG ET AL.: "Experimental Analysis Of Air/Oil Separator Performance", 《PROCEEDINGS OF GT2006》 * |
| 李勇 等: "航空发动机离心通风器性能的试验研究", 《中国航空学会第十三届机械动力传输学术会议论文集》 * |
| 石帅奇 等: "航空发动机离心通风器计算", 《航空计算技术》 * |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897404B (en) * | 2015-06-18 | 2017-07-11 | 哈尔滨工程大学 | A kind of experimental provision and method for measuring centrifugal breather performance |
| CN104897404A (en) * | 2015-06-18 | 2015-09-09 | 哈尔滨工程大学 | Experimental device and method for measuring performance of centrifugal ventilator |
| CN106446316B (en) * | 2016-05-13 | 2020-01-17 | 中国航空工业集团公司沈阳发动机设计研究所 | A design method of a honeycomb structure centrifugal ventilator |
| CN106446316A (en) * | 2016-05-13 | 2017-02-22 | 中国航空工业集团公司沈阳发动机设计研究所 | Design method for centrifugal ventilator adopting honeycomb structure |
| CN107014620B (en) * | 2017-06-01 | 2020-08-21 | 中国航发湖南动力机械研究所 | Test method and test device for measuring lubricating oil consumption of centrifugal ventilator |
| CN107014620A (en) * | 2017-06-01 | 2017-08-04 | 中国航发湖南动力机械研究所 | Measure the test method and experimental rig of eccentric contract lube use rate |
| CN108709728A (en) * | 2018-05-24 | 2018-10-26 | 中国航发湖南动力机械研究所 | Eccentric contract performance test apparatus |
| CN112326226A (en) * | 2020-11-05 | 2021-02-05 | 中国航发沈阳发动机研究所 | Resistance calculation method for impeller type centrifugal ventilator |
| CN112326226B (en) * | 2020-11-05 | 2022-05-06 | 中国航发沈阳发动机研究所 | Resistance calculation method for impeller type centrifugal ventilator |
| CN112780415A (en) * | 2021-02-22 | 2021-05-11 | 中国航发沈阳发动机研究所 | Double-margin lubricating oil difference detection method and device for aircraft engine lubricating oil system |
| CN112780415B (en) * | 2021-02-22 | 2022-03-04 | 中国航发沈阳发动机研究所 | Dual-redundancy lubricating oil difference detection method and device for aircraft engine lubricating oil system |
| CN112985872A (en) * | 2021-05-20 | 2021-06-18 | 成都康拓兴业科技有限责任公司 | Oil mist separation and transportation test bed and test method of aviation oil mist separator |
| CN112985872B (en) * | 2021-05-20 | 2021-08-17 | 成都康拓兴业科技有限责任公司 | Oil mist separation and transportation test bed and test method of aviation oil mist separator |
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Application publication date: 20131127 |
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