CN105136460A - Gas source system test device for simulating engine bleed gas transient effect - Google Patents
Gas source system test device for simulating engine bleed gas transient effect Download PDFInfo
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- CN105136460A CN105136460A CN201510496117.8A CN201510496117A CN105136460A CN 105136460 A CN105136460 A CN 105136460A CN 201510496117 A CN201510496117 A CN 201510496117A CN 105136460 A CN105136460 A CN 105136460A
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Abstract
A gas source system test device for simulating an engine bleeder gas transient effect relate to a structure design technique of ground simulating test equipment of a gas source system in fields of aviation, spaceflight, ship, nuclear industry, etc. The gas source system test device is used for ground simulation test of an engine starting system. A power test platform supplies bleed gas which is required in test. The indexes such as pressure, temperature and flow of the bleed gas can be adjusted according to a test requirement. The air outlet of a thermal power test platform is hermetically connected with one end of a tee pipe. The other end, which opposes the air outlet of the thermal power test platform, of the tee pipe is connected with a downstream pipe. One end of the downstream pipe is hermetically connected with the tee pipe, and the other end is connected with a downstream gas consumption system. The gas source system test device for simulating the engine bleeder gas transient effect can simulate the effect of an engine bleed air flow impact in a real condition, and furthermore can simulate a pressure fluctuation in a pneumatic adjustment process in the real condition. The gas source system test device has advantages of simple structure, convenient manufacture, high device stability, high safety and high reliability.
Description
Technical field
The present invention relates to the structure-design technique of the ground simulation test equipment of air supply system in the fields such as Aeronautics and Astronautics, boats and ships, nuclear industry, in particular to a kind of air supply system test unit of simulated engine bleed transient influence.
Background technology
In the fields such as Aeronautics and Astronautics, boats and ships, nuclear industry, air supply system is controlled the break-make of engine bleed usually by bleed valve, the engine bleed that bleed valve opens rear High Temperature High Pressure feeds down-stream system instantaneously, brings certain flow to impact to down-stream system; Secondly air supply system utilizes pneumatic type valve to regulate air supply system inlet pressure and flow indicator, makes the air pressure of air supply system supply down-stream system and flow be in pulse state always; And engine bleed state also can change instantaneously during engine operating condition change.
After low-temp low-pressure air is fed down-stream system by engine bleed air system ground simulation test equipment usually conventional at present, slowly regulate the parameters such as temperature, pressure, flow to setting again, this testing equipment cannot the vertiginous situation of air supply system parameters in Reality simulation situation, simulated engine bleed cannot feed the flow attack of down-stream system bleed instantaneously equally.The technical matters needing now solution badly how to design a kind of ground simulation test equipment being applicable to air supply system to overcome the defect of air supply system ground simulation test equipment in prior art.
Summary of the invention
The object of the invention is to solve above-mentioned deficiency of the prior art, provide a kind of simple and reasonable, simulated engine bleed can feed the air supply system test unit of the simulated engine bleed transient influence of the flow attack of down-stream system bleed instantaneously.
Object of the present invention is achieved through the following technical solutions: comprise thermodynamic test bed, triplate line, wherein, thermodynamic test bed providing tests required bleed, the index such as pressure, temperature, flow of the thermodynamic test bed bleed provided can regulate according to test demand, one end of thermodynamic test bed gas outlet and triplate line is tightly connected, on triplate line, the other end that is relative with thermodynamic test bed gas outlet, triplate line is connected with downstream pipe, downstream pipe one end is tightly connected triplate line, and the other end is connected with downstream gas system.
, another path of triplate line is provided with bypass valve, for controlling the air capacity of triplate line in such scheme preferably
In above-mentioned either a program preferably, the downstream pipe be connected with triplate line is provided with shutoff valve.
In above-mentioned either a program preferably, bypass valve is electrically operated valve.
In above-mentioned either a program preferably, the joint quantity be tightly connected with triplate line downstream pipe arranged is at least one.
The beneficial effect of the air supply system test unit of simulated engine bleed transient influence provided by the present invention is, structure is simple, and easily manufactured, device stability is high, safe and reliable.Open in the process of exhaust at bypass valve, thermodynamic test bed air feed is adjusted to desirable value, identically with truth rapidly the air regulated is fed down-stream system, thus the impact of engine bleed flow attack in Reality simulation situation, also by regulating the aperture of bypass valve to change down-stream system supply gas pressure, thus the pressure surge produced in pneumatic valve adjustment process in Reality simulation situation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of air supply system test unit according to simulated engine bleed transient influence of the present invention;
Fig. 2 is the structural representation of the embodiment 2 of air supply system test unit according to simulated engine bleed transient influence of the present invention.
Reference numeral:
1-first is thermodynamic test bed, 2-first bypass valve, 3-first turn off valve, 4-second is thermodynamic test bed, 5-second bypass valve, 6-second turn off valve, 7-triplate line, 8-downstream pipe.
Embodiment
In order to understand the air supply system test unit of the simulated engine bleed transient influence according to the present invention program better, be further elaborated explanation below in conjunction with the preferred embodiment of accompanying drawing to the air supply system test unit of simulated engine bleed transient influence of the present invention.
As Figure 1-Figure 2, the air supply system test unit of simulated engine bleed transient influence provided by the invention, comprise first thermodynamic test bed 1, triplate line 7, wherein, first thermodynamic test bed 1 provides test required bleed, the pressure of the first thermodynamic test bed 1 bleed provided, temperature, the indexs such as flow can regulate according to test demand, one end of first thermodynamic test bed 1 gas outlet and triplate line 7 is tightly connected, relative with the gas outlet of first thermodynamic test bed 1, the other end of triplate line 7 is connected with downstream pipe 8, one end of downstream pipe 8 is tightly connected triplate line 7, the other end is connected with downstream gas system.Another path of triplate line 7 is provided with the first bypass valve 2, for controlling the air capacity of triplate line 7.
The downstream pipe 8 be connected with described triplate line 7 is provided with the first shutoff valve 3.First bypass valve 2 is electrically operated valve.The joint quantity be tightly connected with triplate line 7 that downstream pipe 8 is arranged is at least one.The angle that first bypass valve 2 is opened is a, wherein, and 0 ° of <a≤90 °.
The air supply system test unit of simulated engine bleed transient influence provided by the invention, more close to the simulated conditions of time of day, simulated engine bleed can feed the flow attack that down-stream system causes instantaneously, simulated engine bleed air pressure fluctuation status, also switches by organizing testing equipment combined air supply simulated engine state more.
First thermodynamic test bed 1 provides bleed, and the index such as pressure, temperature, flow of air feed is adjustable to desirable value;
The break-make of the first shutoff valve 3 Control experiment platform and down-stream system;
First bypass valve 2 is installed on testing table and first and turns off on the three-way pipe between valve 3, is responsible for controlling By-pass vent amount, and the first bypass valve 2 adopts Electronic control.First bypass valve 2 adopts the mode fast response time of Electronic control, meets the demand of testing equipment analog parameter instantaneous variation;
The air supply system testing equipment of a kind of simulated engine bleed transient influence provided by the invention regulates By-pass vent flow by the first bypass valve 2 thus controls down-stream system air demand, be used for simulated engine bleed air pressure fluctuation and flow attack state, detailed step is as follows:
First turn off valve 3 and the first bypass valve 2 standard-sized sheet by first, testing table air feed is all discharged from bypass, simultaneously the parameter such as adjustment test bed feed air temperature, pressure and flow;
When bleed parameters reaches desirable value, quick closedown first bypass valve 2, makes air feed all feed down-stream system rapidly, thus simulated engine bleed flow attack state;
Subsequently, by the aperture of the first bypass valve 2 in low-angle and closedown two state periodical conversion, thus simulation down-stream system air supply pressure fluctuation state.
Impact on down-stream system when the air supply system testing equipment of a kind of simulated engine bleed transient influence provided by the invention also by organizing combined air supply mode simulated engine working conditions change more, for two groups of testing equipment combined air supplies, first the first bypass valve 2, the second bypass valve 5 all standard-sized sheets in two groups of testing equipments, first thermodynamic test bed 1, second thermodynamic test bed 4 regulates air feed parameter to engine two different operating modes respectively
Then the first bypass valve 2 of testing equipment is closed, first turns off valve 3 opens, the air feed of engine operating condition one state feeds down-stream system rapidly, finally the first bypass valve 2 of testing equipment is opened, first turns off valve 3 closes, and is closed by the second bypass valve 5 of testing equipment, and second turns off valve 6 opens, make the air feed of engine operating condition two-state feed down-stream system, get final product the impact on down-stream system when simulated engine state switches.
The air supply system test unit of simulated engine bleed transient influence provided by the invention is opened in the process of exhaust at bypass valve, thermodynamic test bed air feed is adjusted to desirable value, identically with truth rapidly the air regulated is fed down-stream system, thus in Reality simulation situation engine bleed flow attack on the impact of downstream use gas system, also by regulating the aperture of bypass valve to change down-stream system supply gas pressure, thus the pressure surge produced in pneumatic valve adjustment process in Reality simulation situation; Also air feed capable of being combined is used for the impact of simulated engine operating mode change on down-stream system; The multinomial blank of current air supply system testing equipment filled up by this testing equipment, makes air supply system uphole equipment better Reality simulation state can draw more real conclusion (of pressure testing).
Embodiment 1:
As shown in Figure 1, adopt the air supply system testing equipment single-path testing engine that the invention provides a kind of simulated engine bleed transient influence on the impact of downstream gas system.A kind of air supply system testing equipment of simulated engine bleed transient influence comprises: first thermodynamic test bed 1 provides test required bleed, the index such as pressure, temperature, flow of the first thermodynamic test bed 1 bleed provided can regulate according to test demand, one end of first thermodynamic test bed 1 gas outlet and triplate line 7 is tightly connected, the other end that is relative with the gas outlet of first thermodynamic test bed 1, triplate line 7 is connected with downstream pipe 8, downstream pipe 8 one end is tightly connected triplate line 7, and the other end is connected with downstream gas system.Another path of triplate line 7 is provided with the first bypass valve 2, for controlling the air capacity of triplate line 7.The downstream pipe 8 be connected with triplate line 7 is provided with the first shutoff valve 3.
First thermodynamic test bed 1 provides bleed, the index such as pressure, temperature, flow of air feed is adjustable to desirable value, first turns off the break-make that valve 3 controls thermodynamic test bed 1 and down-stream system, first bypass valve 2 is installed on the first thermodynamic test bed 1 and first three-way pipe 7 turned off between valve 3, be responsible for controlling By-pass vent amount, first bypass valve 2 adopts Electronic control, and this control mode fast response time, meets the demand of testing equipment analog parameter instantaneous variation.First bypass valve 2 regulates extraction flow thus controls down-stream system air demand, is used for the fluctuation of simulated engine bleed air pressure and flow attack state.First valve 3 and the first bypass valve 2 standard-sized sheet is turned off by first, first thermodynamic test bed 1 air feed is all discharged from the first bypass valve 2, first regulate the parameters such as thermodynamic test bed 1 feed air temperature, pressure and flow simultaneously, when bleed parameters reaches desirable value, quick closedown first bypass valve 2, air feed is made all to feed down-stream system rapidly, thus simulated engine bleed flow attack state, subsequently, by the first bypass valve 2 aperture in low-angle and closedown two state periodical conversion, thus simulation down-stream system air supply pressure fluctuation state.
Embodiment 2:
As shown in Figure 2, adopt the air supply system testing equipment double-channel testing engine that the invention provides a kind of simulated engine bleed transient influence on the impact of downstream gas system.A kind of air supply system testing equipment of simulated engine bleed transient influence comprises: first thermodynamic test bed 1, second thermodynamic test bed 4 provides test required bleed, first thermodynamic test bed 1, the pressure of the second thermodynamic test bed 4 bleed provided, temperature, the indexs such as flow can regulate according to test demand, first thermodynamic test bed 1, one end of second thermodynamic test bed 4 gas outlets and triplate line 7 is tightly connected, with first thermodynamic test bed 1, the gas outlet of second thermodynamic test bed 4 is relative, the other end of triplate line 7 is connected with downstream pipe 8, downstream pipe 8 one end is tightly connected triplate line 7, the other end is connected with downstream gas system.Another path of triplate line 7 is provided with the first bypass valve 2 and the second bypass valve 5, for controlling the air capacity of triplate line 7.The downstream pipe 8 be connected with triplate line 7 is provided with the first shutoff valve 3, second and turns off valve 6.
When test is carried out, first by the first bypass valve 2 and the second bypass valve 5 all standard-sized sheets, first thermodynamic test bed 1 and second thermodynamic test bed 4 regulates air feed parameter to engine two different operating modes respectively; Then closed by the first bypass valve 2, first turns off valve 3 opens, and the air feed of engine operating condition one state feeds down-stream system rapidly; Finally opened by the first bypass valve 2, first turns off valve 3 closes, and is closed by the second bypass valve 5, and second turns off valve 6 opens, and makes the air feed of engine operating condition two-state feed down-stream system, gets final product the impact on down-stream system when simulated engine state switches.
Air supply system test unit specific embodiment more than in conjunction with simulated engine bleed transient influence of the present invention is described in detail, but be not limitation of the present invention, everyly according to technical spirit of the present invention, technical scope of the present invention is all belonged to any simple modification made for any of the above embodiments, also it should be noted that, comprise the combination in any between each part mentioned above according to the category of the air supply system test unit technical scheme of simulated engine bleed transient influence of the present invention.
Claims (6)
1. the air supply system test unit of a simulated engine bleed transient influence, it is characterized in that, comprise first thermodynamic test bed (1), triplate line (7), wherein, first thermodynamic test bed (1) provides test required bleed, the pressure of the bleed that first thermodynamic test bed (1) provides, temperature, the indexs such as flow can regulate according to test demand, one end of first thermodynamic test bed (1) gas outlet and triplate line (7) is tightly connected, the gas outlet of thermodynamic test bed with first (1) is relative, the other end of triplate line (7) is connected with downstream pipe (8), downstream pipe (8) one end is tightly connected triplate line (7), the other end is connected with downstream gas system.
2. the air supply system test unit of simulated engine bleed transient influence as claimed in claim 1, it is characterized in that: another path of described triplate line (7) is provided with the first bypass valve (2), for controlling the air capacity of triplate line (7).
3. the air supply system test unit of simulated engine bleed transient influence as claimed in claim 1 or 2, is characterized in that: the described downstream pipe (8) be connected with described triplate line (7) is provided with the first shutoff valve (3).
4. the air supply system test unit of simulated engine bleed transient influence as claimed in claim 2, is characterized in that: described first bypass valve (2) is electrically operated valve.
5. the air supply system test unit of simulated engine bleed transient influence as claimed in claim 3, is characterized in that: the upper joint quantity be tightly connected with described triplate line (7) that is that arrange of described downstream pipe (8) is at least one.
6. the air supply system test unit of simulated engine bleed transient influence as claimed in claim 4, is characterized in that: the angle that described first bypass valve (2) is opened is a, wherein, and 0 ° of <a≤90 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510496117.8A CN105136460A (en) | 2015-08-13 | 2015-08-13 | Gas source system test device for simulating engine bleed gas transient effect |
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| CN201510496117.8A CN105136460A (en) | 2015-08-13 | 2015-08-13 | Gas source system test device for simulating engine bleed gas transient effect |
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Cited By (5)
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| CN105865797A (en) * | 2016-05-31 | 2016-08-17 | 中国航空工业集团公司西安飞机设计研究所 | Fire extinguishing test assembly of aircraft engine |
| CN106124237A (en) * | 2016-08-17 | 2016-11-16 | 中国商用飞机有限责任公司 | transient fluid thermal power test device |
| CN107290166A (en) * | 2017-07-31 | 2017-10-24 | 中国商用飞机有限责任公司 | Test system and test method for simulating rapid change of fluid temperature and/or pressure |
| CN111964910A (en) * | 2020-06-30 | 2020-11-20 | 中国航发南方工业有限公司 | Engine air-entraining test device, design method and test method |
| CN114152446A (en) * | 2020-09-08 | 2022-03-08 | 中国航发商用航空发动机有限责任公司 | Bleed air control system and method |
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| CN111964910A (en) * | 2020-06-30 | 2020-11-20 | 中国航发南方工业有限公司 | Engine air-entraining test device, design method and test method |
| CN111964910B (en) * | 2020-06-30 | 2022-04-19 | 中国航发南方工业有限公司 | Engine air-entraining test device, design method and test method |
| CN114152446A (en) * | 2020-09-08 | 2022-03-08 | 中国航发商用航空发动机有限责任公司 | Bleed air control system and method |
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Application publication date: 20151209 |