CN202176500U - Pollutant accelerated life test rack of aircraft engine driven pump - Google Patents
Pollutant accelerated life test rack of aircraft engine driven pump Download PDFInfo
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- CN202176500U CN202176500U CN 201120294831 CN201120294831U CN202176500U CN 202176500 U CN202176500 U CN 202176500U CN 201120294831 CN201120294831 CN 201120294831 CN 201120294831 U CN201120294831 U CN 201120294831U CN 202176500 U CN202176500 U CN 202176500U
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Abstract
The utility model relates to a pollutant accelerated life test rack of an aircraft engine driven pump. A high pressure outlet of a tested pump is connected with a pressure sensor and then connected with a first hand control valve, an outlet of the first hand control valve is connected with a variable throttle valve, and an outlet of the variable throttle valve is connected with a fourth hand control valve. The outlet of the hand control valve is connected with a radiator, an outlet of the radiator is connected with an oil return opening of an oil tank, and an outlet of the oil tank is connected with a temperature sensor and then connected with a pressure-boosting pump. An outlet of the pressure-boosting pump is connected with a second pressure sensor and then connected with an oil sucking opening of the tested pump, and an oil return opening of the tested pump body is connected with the oil tank after being connected with a second sampling valve. A key hydraulic accessory, the sensor and the like of the test rack are protected, service life of the elements is prolonged, and failure rate in the testing process is reduced. By arranging a pressure warning device, a test system can be automatically switched off, thereby avoiding danger. By means of a special pollutant injecting device and a pollutant purifying device, the pollutant injecting process is more stable, and the pollutant purifying process is quicker.
Description
Technical field
The utility model relates to a kind of pollution accelerated life test stand of Engine Driven Pump, is the pollution accelerated life test stand of aeroengine driven pump by it.
Background technique
Aeroengine drives the important composition element of oil hydraulic pump as the aircraft hydraulic energy system; The length of its operating life is directly connected to the quality of systematic function; For this reason, the home and abroad seeking always a kind of can within a short period of time just can clear and definite its operating life accelerated test method.
Because the contamination particle in the hydraulic oil is the direct factor that influence aeroengine driving hydraulic pump works life-span and reliability; Therefore; Method that adopt to pollute accelerated life test is real simulated oil hydraulic pump environmental stress in the course of the work comparatively, and obtains the prediction work life value of oil hydraulic pump.Require stand itself to have very high contamination resistance owing to pollute the accelerated life test stand, the various elements of on stand, installing also should have very high pollution tolerance, at pipeline laying; In the element installation process; Also need carry out a lot of special considerations, could can have high durability against pollution by proof test stand itself, therefore; The design of this stand is compared with routine test gantry designs process, has very large difficulty.
Abroad early for the pollution accelerated life test technical research of oil hydraulic pump; But the test-bed of external development is because the pollution tolerance level is lower, and after a small amount of test of experience, stand will break down; Particularly in process of the test; A lot of elements all are prone in process of the test, destroyed and produce fault in the stand, have a strong impact on normally carrying out of test, and are very big for carrying out of testing and result's analyzing influence; In addition on the one hand, because the weakness of computer technology at that time, hand, the eye that the manipulation of whole stand and monitoring can only be through operator and feel to carry out, the process of the test complex operation, and can not accomplish quantification.At home; China Mining University also once developed oil hydraulic pump and polluted the accelerated life test stand; But owing to have significant deficiency in the design; Make stand in short service time, pipeline blockage just occur, the problem that the inside deposition thing can't be removed, the problem that has caused test-bed to continue to use.Therefore, the pollution accelerated life test gantry designs technology of existing home and abroad aeroengine driven pump all exists unsolved design challenges, the pollution accelerated life test technology of serious limit.
Summary of the invention
Low for solving existing aeroengine driven pump test stand pollution tolerance level; Deficiencies such as stand breaks down easily; The utility model provides a kind of pollution tolerance strong, is not easy to occur the pollution accelerated life test stand of the novel aeroengine driven pump of problems such as stopping up.
The technological scheme that the utility model is taked is: a kind of pollution accelerated life test stand of aeroengine driven pump; Comprise that being connected pressure transducer [2] back by pump testing [1] high-pressure outlet links to each other with first hand control valve [4] inlet, first hand control valve [4] outlet is connected with variable throttle valve [5] inlet, and variable throttle valve [5] outlet is connected with the 4th hand control valve [9] inlet; Hand control valve [9] outlet links to each other with radiator [13] inlet; Radiator [13] outlet links to each other with fuel tank [17] return opening, after fuel tank [17] outlet connects temperature transducer [14], links to each other with suction booster [15] inlet; After suction booster [15] outlet connects second pressure transducer [16]; With linked to each other by pump testing [1] inlet port,, after connecting second sampling valve [19], be connected by pump testing [1] housing return opening with fuel tank [17];
Be parallel with the 6th hand control valve [18] and flow transducer [3] at first hand control valve [4], promptly connect the 6th hand control valve [18] at first hand control valve [4] high-pressure mouth end, the 6th hand control valve [18] outlet is connected with flow transducer [3];
Variable throttle valve [5] outlet also is connected with sampling valve [6];
Also be connected with second hand control valve [7] in variable throttle valve [5] outlet port, second hand control valve [7] outlet port is connected with to install according to this pollutes injection device [11] and the 5th hand control valve [12], and the 5th hand control valve [12] outlet is connected with radiator [13] outlet port;
The 4th hand control valve [9] is located to be parallel with the 3rd hand control valve [8] and is polluted the scavenger circuit that control oil filter [10] is connected, and pollutes control oil filter [10] outlet and is connected with radiator [13] inlet.
Further, above-mentioned fuel tank [17] bottom is taper.
Further, above-mentioned fuel tank [17] bottom cone angle is less than 90 °.
The good effect that the utility model produces: design through again aeroengine being driven oil hydraulic pump pollution accelerated life test stand; To key sensor and key element; As: elements such as flow transducer, radiator are taked special protective measure and design, and various components and parts pollute the sensitivity of dust on the reduction stand for code test.Use process control machine that everywhere the information of control valve and sensor acquisition on the whole stand is carried out full-automatic brain control and gather, the various state values of stand inside in the process of the test are monitored and reported to the police, improved degree of protection stand.Use high-precision serial oil filter design, improved the auto purification ability of stand, reduced the intensity of safeguarding of stand simultaneously.Be reserved with various interface on the stand, conveniently stand transformed, other forms of oil hydraulic pump is polluted accelerated life test, expanded the using scope of stand with convenient.
In design process, crucial hydraulic services in the stand and sensor etc. are protected,, improved the operating life of said elements from system, be reduced in the rate of fault in the process of the test through crucial annex and sensor being inserted and isolating; Use a computer each controlling component in the stand is controlled, utilization is gathered automatically, recording equipment is gathered the various signal values on the stand, improves the automation range of driving degree of test-bed; Be provided with necessary pressure alarm equipment, when in process of the test, system overpressure occurring, can cut off pilot system automatically, avoid dangerous and take place; In the gantry designs process, considered working principle and the working forms of other aviations, improved the versatility of stand with oil hydraulic pump; Adopt special-purpose pollution injection device and removing pollutant equipment, make that the pollution injection process is more steady, and the removing pollutant process is quicker.
Description of drawings
Fig. 1 the utility model hydraulic circuit diagram, wherein, 1: by pump testing, 2: the first pressure transducers, 3: flow transducer; 4: the first hand control valves, 5: variable throttle valve, 6: the first sampling valves, 7: the second hand control valves; 8: the three hand control valves, 9: the four hand control valves, 10: pollute the filter of control oil, 11: pollute injection device; 12: the five hand control valves, 13: radiator, 14: temperature transducer, 15: suction booster; 16: the second pressure transducers, 17: fuel tank, 18: the six hand control valves, 19: the second sampling valves.
Embodiment
Below in conjunction with Figure of description the utility model is described in further detail.
A kind of pollution accelerated life test stand of aeroengine driven pump comprises that being connected pressure transducer 2 backs by pump testing 1 high-pressure outlet links to each other with first hand control valve, 4 inlets, and 4 outlets of first hand control valve are connected with variable throttle valve 5 inlets; Variable throttle valve 5 outlets are connected with the 4th hand control valve 9 inlets, and 9 outlets of the 4th hand control valve link to each other with radiator 13 inlets, and radiator 13 outlets link to each other with fuel tank 17 return openings; After fuel tank 17 outlets connect temperature transducer 14; Link to each other with suction booster 15 inlet, behind suction booster 15 outlet connections second pressure transducer 16, and linked to each other by pump testing 1 inlet port;, after connecting second sampling valve 19, be connected by pump testing 1 housing return opening with fuel tank 17;
Be parallel with the 6th hand control valve 18 and flow transducer 3 at first hand control valve 4, promptly connect 18 outlets of the 6th hand control valve 18, the six hand control valves at first hand control valve, 4 high-pressure mouth ends and be connected with flow transducer 3, flow transducer 3 outlets are connected with the outlet of the 4th hand control valve;
Also be connected with second hand control valve, 7, the second hand control valves, 7 outlet ports is connected with in turn and install pollutes injection device 11 and export with the 5th hand control valve 12, the five hand control valves 12 and be connected with radiator 13 outlet ports in variable throttle valve 5 outlet ports;
The 4th hand control valve 9 places are parallel with the 3rd hand control valve 8 and pollute the scavenger circuit that control oil filter 10 is connected, and pollute control oil filter 10 outlets and are connected with radiator 13 inlets.
Further, above-mentioned fuel tank 17 bottoms are taper.
Further, above-mentioned fuel tank 17 bottom cone angles are less than 90 °.
The selection of components and parts requires as follows in the installation process of test-bed:
A) pipeline: according to by the flow at pump testing 1 high-pressure outlet flow, housing return opening place, select suitable pipeline size, to guarantee that in process of the test the fluid in each bar pipeline remains turbulent condition in flow process.When making up test-bed, should as far as possible the pipeline laying direction be remained vertical direction, reduce the length of lateral duct as far as possible;
B) fuel tank 17: system's fuel tank 17 bottoms should be taper; And cone angle should be less than 90 °; Simultaneously; System oil return pipeline outlet in fuel tank 17 should remain at below the pasta, should special-purpose disperser be installed in system oil return pipeline outlet port, can fully mix with the fluid in the fuel tank to guarantee the contamination particle in the oil return;
C) pollute injection device 11: pollute the volume that injects fuel tank and approximately maintain 500mL, and pollute the inner length/internal diameter that injects fuel tank and be approximately 10, the bottom angle is less than 90 °.Use diaphragm pump to drive high pollution fluid as polluting driven pump;
D) suction booster 15: suction booster 15 itself should be able to guarantee to offer by pump testing sufficient oil suction flow and oil suction pressure, produces the least possible pollution simultaneously, recommends to use centrifugal pump;
E) pollute control oil filter 10: pollute the oily filter of control and should be able to be in 15min the pollution concentration of system's fluid be controlled at below the 10mg/L;
F) radiator 13: use the single process gilled tube radiator, radiator adopts vertical mounting type when mounted, and hydraulic oil gets into from the bottom, flow out on top; Radiator heat-dissipation power should guarantee not to be higher than 100 ℃ by pump testing oil suction temperature;
G) variable throttle valve 5: can be adjusted to complete shut-down from standard-sized sheet continuously;
H) hand control valve 4,7,8,9,12: manually control, realize closing fully and opening of valve.
Concrete working procedure is following:
To be installed in the test-bed by pump testing 1; Regulate the aperture of variable throttle valve 5; Make by pump testing 1 and be operated in the nominal operation state; Close second hand control valve 7, the 3rd hand control valve 8, the 5th hand control valve 12, the 5th hand control valve 18, open first hand control valve 4, the 4th hand control valve 9, measure by the output stream value and the force value of pump testing 1 under initial conditions;
To inject according to the high density pollution particle contamination fluid that it is good that finite concentration requires allotment and pollute injection device 11, subsequently, close first hand control valve 4; The 3rd hand control valve 8, the 5th hand control valve 12 use and pollute injection device 11 with in the contaminated oil liquid injection system, treat that system works is stable after; Or behind the continuous operation 30min of system, close the 4th hand control valve 9, the five hand control valves 18; Use to pollute 10 pairs of system's fluid of control oil filter and filter, treat that systemic contamination degree grade meets the demands after, close second hand control valve 7; Open first hand control valve 4, the use traffic sensor 3 and first pressure transducer 2 are measured by the output flow of pump testing 1 and force value.
In polluting injection device 11, re-inject next stage and else pollute fluid, repeat above-mentioned experimentation, finish using, perhaps be reduced to below the specified value off-test by the performance of pump testing until other pollution fluid of afterbody.
The employing computer is to the various electric-controlled parts in the test-bed and sensor is controlled and signals collecting, programmes in computer-internal, realizes automatic record and derivation to test data, and the aspect is in the arrangement and the analysis of the laggard line data of test.
The pollution accelerated life test stand of a kind of aeroengine driven pump of the utility model not only can be used for the pollution accelerated life test of aeroengine driven pump, also is applicable to the pollution accelerated aging of constant-pressure variable oil hydraulic pump.
Claims (3)
1. the pollution accelerated life test stand of an aeroengine driven pump; It is characterized in that: comprise that being connected pressure transducer [2] back by pump testing [1] high-pressure outlet links to each other with first hand control valve [4] inlet, first hand control valve [4] outlet is connected with variable throttle valve [5] inlet, and variable throttle valve [5] outlet is connected with the 4th hand control valve [9] inlet; Hand control valve [9] outlet links to each other with radiator [13] inlet; Radiator [13] outlet links to each other with fuel tank [17] return opening, after fuel tank [17] outlet connects temperature transducer [14], links to each other with suction booster [15] inlet; After suction booster [15] outlet connects second pressure transducer [16]; With linked to each other by pump testing [1] inlet port,, after connecting second sampling valve [19], be connected by pump testing [1] housing return opening with fuel tank [17]; Be parallel with the 6th hand control valve [18] and flow transducer [3] at first hand control valve [4], promptly connect the 6th hand control valve [18] at first hand control valve [4] high-pressure mouth end, the 6th hand control valve [18] outlet is connected with flow transducer [3]; Variable throttle valve [5] outlet also is connected with sampling valve [6]; Also be connected with second hand control valve [7] in variable throttle valve [5] outlet port, second hand control valve [7] outlet port is connected with to install according to this pollutes injection device [11] and the 5th hand control valve [12], and the 5th hand control valve [12] outlet is connected with radiator [13] outlet port; The 4th hand control valve [9] is located to be parallel with the 3rd hand control valve [8] and is polluted the scavenger circuit that control oil filter [10] is connected, and pollutes control oil filter [10] outlet and is connected with radiator [13] inlet.
2. the pollution accelerated life test stand of aeroengine driven pump according to claim 1 is characterized in that: fuel tank [17] bottom is taper.
3. the pollution accelerated life test stand of aeroengine driven pump according to claim 1 is characterized in that: fuel tank [17] bottom cone angle is less than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120294831 CN202176500U (en) | 2011-08-15 | 2011-08-15 | Pollutant accelerated life test rack of aircraft engine driven pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120294831 CN202176500U (en) | 2011-08-15 | 2011-08-15 | Pollutant accelerated life test rack of aircraft engine driven pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176500U true CN202176500U (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120294831 Expired - Lifetime CN202176500U (en) | 2011-08-15 | 2011-08-15 | Pollutant accelerated life test rack of aircraft engine driven pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949853A (en) * | 2015-06-29 | 2015-09-30 | 新乡天翼过滤技术检测有限公司 | Pollutant injection system in filtering performance test on filter |
| CN105675275A (en) * | 2016-01-13 | 2016-06-15 | 中国航空动力机械研究所 | Equivalent accelerated life testing method of fuel pump regulator |
| CN108126549A (en) * | 2017-12-25 | 2018-06-08 | 沈阳创新航空科技有限公司 | The compounding system and technique of No. 65 coolant pollution grades |
| CN110529374A (en) * | 2019-07-11 | 2019-12-03 | 广东科鉴检测工程技术有限公司 | A kind of water pump reliability test method |
-
2011
- 2011-08-15 CN CN 201120294831 patent/CN202176500U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949853A (en) * | 2015-06-29 | 2015-09-30 | 新乡天翼过滤技术检测有限公司 | Pollutant injection system in filtering performance test on filter |
| CN105675275A (en) * | 2016-01-13 | 2016-06-15 | 中国航空动力机械研究所 | Equivalent accelerated life testing method of fuel pump regulator |
| CN105675275B (en) * | 2016-01-13 | 2018-05-15 | 中国航空动力机械研究所 | The acceleration equivalent lifetime test method of fuel-oil pump governor |
| CN108126549A (en) * | 2017-12-25 | 2018-06-08 | 沈阳创新航空科技有限公司 | The compounding system and technique of No. 65 coolant pollution grades |
| CN110529374A (en) * | 2019-07-11 | 2019-12-03 | 广东科鉴检测工程技术有限公司 | A kind of water pump reliability test method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
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| CX01 | Expiry of patent term |