CN106338401A - Airspace-engine test-bed long-range exhaust system - Google Patents

Airspace-engine test-bed long-range exhaust system Download PDF

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Publication number
CN106338401A
CN106338401A CN201610814419.XA CN201610814419A CN106338401A CN 106338401 A CN106338401 A CN 106338401A CN 201610814419 A CN201610814419 A CN 201610814419A CN 106338401 A CN106338401 A CN 106338401A
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CN
China
Prior art keywords
liquid oxygen
pipeline
ethanol
supply line
pressure
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CN201610814419.XA
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Chinese (zh)
Inventor
史超
李陆昊
陈聪
贺宏
鱼凡超
杜彬
赵建军
赵政社
邹伟龙
罗军
刘永伟
王广飚
黄立还
朱小江
翟文化
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西安航天动力试验技术研究所
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Application filed by 西安航天动力试验技术研究所 filed Critical 西安航天动力试验技术研究所
Priority to CN201610814419.XA priority Critical patent/CN106338401A/en
Publication of CN106338401A publication Critical patent/CN106338401A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00Testing of engines
    • G01M15/02Details or accessories of testing apparatus

Abstract

The invention belongs to the aviation and airspace engine test technology field and especially relates to an airspace-engine test-bed long-range exhaust system. The system comprises a water vapor generator, an alcohol supply system, a liquid oxygen supply system, a softened water supply system, a plasma igniter, a gas distribution system and a steam ejector system. The water vapor generator comprises a straight tube and four medium pipelines installed on the straight tube. The four medium pipelines comprise an alcohol pipeline, a liquid oxygen pipeline and two softened water pipelines. A top center of the straight tube is provided with the plasma igniter. The alcohol pipeline of the four medium pipelines is connected to the alcohol supply system. The liquid oxygen pipeline is connected to the liquid oxygen supply system. The two softened water pipelines are connected to the softened water supply system. A lower end of the straight tube is connected to the steam ejector system. The gas distribution system is used for providing a nitrogen gas source for the alcohol supply system, the liquid oxygen supply system, the plasma igniter and the steam ejector system. By using the system, a test requirement can be satisfied and the test is safe and reliable.

Description

A kind of airspace engine test bay long-range gas extraction system
Technical field
The invention belongs to Aeronautics and Astronautics engine test technical field is and in particular to a kind of airspace engine test run director Journey gas extraction system.
Background technology
In the airspace engine test carrying out at home at present, it is that guarantee test cabin has during engine test all the time Standby certain vacuum, the method that experimental cabin aerofluxuss adopt is predominantly following several:
A. purchase large-size spherical tank, build air compressor machine Factory Building, using air-compressor set etc., spherical tank is extracted into certain vacuum degree, test In Shi Liyong spherical tank, air, combustion gas etc. in experimental cabin are discharged in spherical tank vacuum, to obtain vacuum in experimental cabin.
B. build air bottle field, be equipped with a large amount of high pressure air bottles, use air as medium and pass through injector injection.
C. utilize the hot combustion gas injection that electromotor itself produces.
Although above-mentioned three kinds of method for exhausting can reach certain test effect in airspace engine test, still possess Significantly shortcoming:
1st, the engine test time is short, and the little direct-connected engine test maximum duration of current flux can only arrive 1200s, is used for Free jet test basic in 20s, be difficult to meet electromotor big flow long-range test requirements document.2nd, scale of investment is big, if Apply, area of mill site big;3rd, dangerous high;4th, efficiency is low.
Content of the invention
In order to solve the problems, such as in background technology, the invention provides one kind can meet airspace engine big flow long-range row Gas test requirements document, and test efficiency height, experimental safe reliable airspace engine test bay long-range gas extraction system.
The concrete technical scheme of the present invention is:
A kind of airspace engine test bay long-range gas extraction system, supplies including steam generator, ethanol supply system, liquid oxygen Answer system, soften water supply system, plasma igniter, air distribution system and steam ejection system;
Described steam generator includes straight tube and four medium pipelines being arranged in straight tube;Four medium pipelines include Ethanol pipeline, liquid oxygen line and two softening waterpipes;
The top center of straight tube installs plasma igniter;The ethanol pipeline of four medium pipelines is with ethanol supply system even Logical;Liquid oxygen line is connected with liquid oxygen supply system;Two are softened waterpipe and are all connected with softening water supply system;The lower end of straight tube With steam ejection system connectivity;Air distribution system is used for ethanol supply system, liquid oxygen supply system, ionic points firearm and steam Ejection system provides Nitrogen source gases.
Specifically, above-mentioned ethanol supply system includes alcohol container, alcohol recycle container, the main supply line of ethanol, many Individual ethanol branch supply line, ethanol filling pipeline, ethanol let out return pipe road, ethanol pressure pipeline;
The entrance of the main supply line of ethanol respectively with alcohol container outlet, the main supply line of ethanol is parallel with multiple Ethanol branch supply line;Multiple ethanol branches supply line is connected with multiple steam generators respectively;Return pipe road let out by ethanol One end supply line main with ethanol connects, the other end and alcohol recycle reservoir;Ethanol filling pipeline one end is with ethanol source even Connect, the other end is connected with alcohol container;Pressure pipeline one end is connected with pressurization air source, and the other end is connected with alcohol container;Pressure release Pipeline one end and atmosphere, the other end is connected with alcohol container;
On the main supply line of ethanol, the flow direction along ethanol is sequentially arranged with corrugated tube, ball valve, filter, pressure measuring element And temperature-measuring element;
On each ethanol branch supply line, the flow direction along ethanol is sequentially installed with ball valve, effusion meter, restricting orifice, pressure Power measuring cell and temperature-measuring element;Each ethanol branch supply line and the ethanol pipeline of each steam generator connect It is connected with nitrogen blow-off's pipeline, nitrogen blow-off's pipeline is provided with stop valve, pressure measuring element and temperature survey unit between mouthful Part;
Ethanol fills the flow direction along ethanol on pipeline and installs centrifugal pump, filter and ball valve successively;Ethanol fills pipeline On be also associated with the pipeline that is connected with alcohol recycle container, hold for the ethanol of alcohol recycle container is filled into ethanol again Device;
On pressure pipeline along pressurization gas flow direction be provided with filter, ball valve, matrix orifice plate, pressure measuring element with And temperature-measuring element;Matrix orifice plate is made up of side by side the pipeline of 5 different-diameters, each pipeline is both provided with 1 not Orifice plate with aperture;
Vessel safety valve is connected on relief pipeline, spark arrester is installed in relief pipeline outlet additional.
Specifically, above-mentioned liquid oxygen supply system includes liquid oxygen container, liquid oxygen returnable, the main supply line of liquid oxygen, many Individual liquid oxygen branch supply line, liquid oxygen let out return pipe road, liquid oxygen filling pipeline, pressure pipeline and relief pipeline;
The entrance of the main supply line of liquid oxygen respectively with liquid oxygen container outlet, the main supply line of liquid oxygen is parallel with multiple Liquid oxygen branch supply line;Multiple liquid oxygen branches supply line is connected with multiple steam generators respectively;Liquid oxygen lets out return pipe road One end supply line main with liquid oxygen connects, and the other end is connected with liquid oxygen returnable;Liquid oxygen filling pipeline one end and liquid oxygen source of the gas Connect, the other end is connected with liquid oxygen container;Pressure pipeline one end is connected with pressurization air source, and the other end is connected with liquid oxygen container;Let out Pressure pipeline one end and atmosphere, the other end is connected with liquid oxygen container;
On the main supply line of liquid oxygen, the flow direction along liquid oxygen is sequentially arranged with corrugated tube, ball valve and filter;
On each liquid oxygen branch supply line, the flow direction along liquid oxygen is provided with effusion meter, restricting orifice, ball valve, pressure survey Amount element and temperature-measuring element;Between each liquid oxygen branch supply line and each steam generator liquid oxygen line interface It is connected with nitrogen blow-off's pipeline, nitrogen blow-off's pipeline is provided with stop valve, pressure measuring element and temperature-measuring element;
On liquid oxygen filling pipeline, filter and stop valve are installed;It is also associated with nitrogen blow-off's pipeline on liquid oxygen filling pipeline;
On pressure pipeline along pressurization gas flow direction be provided with filter, ball valve, matrix orifice plate, pressure measuring element with And temperature-measuring element;Matrix orifice plate is made up of side by side the pipeline of 5 different-diameters, each pipeline is both provided with 1 not Orifice plate with aperture;
Vessel safety valve is connected on relief pipeline, spark arrester is installed in relief pipeline outlet additional.
Specifically, above-mentioned softening water supply system includes softening pond, the first water supply line, centrifugal pump, the second water supply Pipeline, collector tube and let out return pipe road;
Soften and be connected by the first water supply line, along the stream of softened water on the first water supply line between pond and centrifugal pump To being sequentially installed with gate valve, ball valve, filter and pressure measuring element;
Second water supply line one end is connected with centrifugal pump, and the other end is vertically connected with collector tube;One end closing of collector tube, The other end passes sequentially through reducer union and return pipe road is let out in ball valve connection;Collector tube is connected with two softened waters near the position of closing Branch's supply line;Two softening water branch supply line softened water pipeline communications with steam generator respectively;
Between second feed pipe and collector tube along softened water flow direction install successively check-valves, gate valve, filter and Pressure measuring element;Each softens water branch supply line and softens waterpipe along the stream of softened water with each steam generator To installing effusion meter, filter, relief valve, stop valve, pressure measuring element and restricting orifice successively.
Specifically, above-mentioned steam ejection system includes steam distributor, one-level induction apparatus, two grades of induction apparatus, disappears Sound tower and switch valve;
One-level induction apparatus and two grades of induction apparatus are connected in series, and switch valve is passed through in the steam inlet of one-level induction apparatus Connect with steam distributor;The steam inlet of two grades of induction apparatus is connected with steam distributor;The steam of two grades of induction apparatus goes out Mouth is connected with external environment condition by sound damping tower;The evacuation entrance of one-level induction apparatus is connected with engine test cabin;Steam divides Orchestration connects the outlet of straight tube;
Described one-level induction apparatus includes receiving chamber, vacuum pipe, vacuum butterfly valve, nozzles with injector and choke manifold;
Described nozzles with injector is Rafael nozzle structure, and nozzles with injector is inserted in receiving chamber, outside the entrance of nozzles with injector It is exposed at receiving chamber outside and the entrance of nozzles with injector receives the high-temperature steam that steam generator produces, the outlet of nozzles with injector It is located at and accept indoor and connect with choke manifold entrance;
The side mounting vacuum tube road of receiving chamber;Vacuum pipe is connected with engine vacuum cabin by vacuum butterfly valve;Described One-level induction apparatus and two grades of induction apparatus structures are identical;
Described nozzles with injector is inserted in receiving chamber for three and spaced 120 °;The quantity of described choke manifold with Nozzles with injector is consistent;
Described choke manifold includes mixing chamber, connecting pipe and the diffuser casing being sequentially communicated;The entrance of described mixing chamber Outlet coaxial communication with nozzles with injector.
Described mixing chamber is gradually reduced from entrance to outlet diameter;The constant diameter of described connecting pipe is constant;Described expansion Scattered room is gradually increased from entrance to outlet diameter.
Specifically, above-mentioned air distribution system include high pressure nitrogen gas cylinders group, medium pressure nitrogen gas bottle, high pressure gas pipeline road, in Pressure gas pipeline, regulator and multiple air duct;
High pressure gas pipeline road one end connects high pressure nitrogen gas cylinders group, and the other end connects regulator entrance;Debugging apparatus Export after multiple air duct in parallel respectively with nitrogen blow-off pipeline, plasma igniter, the main supply line of liquid oxygen, the main confession of ethanol Answer pipeline and pressure pipeline connection;
Middle pressure gas pipeline one end connects medium pressure nitrogen gas bottle, and the other end connects regulator entrance;Regulator exports With steam ejection system connectivity.
In addition, above-mentioned ethanol supply system also includes ethanol atmospheric pipe, described ethanol atmospheric pipe is opened in ethanol master Supply line top, ethanol atmospheric pipe is provided with ball valve and the observing tube for observing mobility status.
In addition, stating liquid oxygen supply system also include liquid oxygen atmospheric pipe;Liquid oxygen atmospheric pipe is opened in the main supply pipe of liquid oxygen Road top, liquid oxygen atmospheric pipe is provided with ball valve and temperature-measuring element.
It is an advantage of the current invention that:
1st, the present invention adopt ethanol supply system, liquid oxygen supply system, soften water supply system, steam generator and The gas extraction system of steam ejection system composition is per second smoothly to arrange several kilograms to hundreds of kilogram in experimental cabin of fuel gas mixture Go out, so that experimental cabin vacuum is maintained all the time in claimed range, realize electromotor direct-connected test more than 3000s, free jet tries Test the ability of more than 350s, fundamentally solve the requirement of certain electromotor long-range test, in test, this long-range gas extraction system is steady Fixed work about 1800s.
2nd, the system investments small scale that the present invention adopts, facility area of mill site is little, and total floor space is less than 1850m2, Greatly save test site.
3rd, the system of the present invention avoids using substantial amounts of gas cylinder, thus reducing the danger that gas cylinder brings;
4th, the system Job readiness time of the present invention is short, substantially increases test efficiency.
5th, the present invention adopts ethanol, liquid oxygen, softens water producing water vapor, nontoxic, pollution-free, beneficial to environmental conservation.
Brief description
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is the structure diagram of steam generator;
Fig. 3 is the structure diagram of ethanol supply system;
Fig. 4 is the structure diagram of liquid oxygen supply system;
Fig. 5 is the structure diagram softening water supply system;
Fig. 6 is the structure diagram of steam ejection system;
Fig. 7 is the structure diagram of one-level induction apparatus;
Fig. 8 is a direction view of Fig. 7;
Fig. 9 is the structure diagram of air distribution system.
1- steam generator, 2- ethanol supply system, 21- alcohol container, 22- alcohol recycle container, the main confession of 23- ethanol Pipeline, 24- ethanol branch supply line, 25- ethanol is answered to fill pipeline, return pipe road let out by 26- ethanol, 27- pressure pipeline, 28- let out Pressure pipeline, 29- ethanol atmospheric pipe, 3- liquid oxygen supply system, 31- liquid oxygen container, 32- liquid oxygen returnable, the main confession of 33- liquid oxygen Pipeline, 34- liquid oxygen branch supply line, 35- liquid oxygen is answered to let out return pipe road, 36- liquid oxygen filling pipeline, 37- liquid oxygen atmospheric pipe, 4- Soften water supply system, 41- softens pond, 42- first water supply line, 43- centrifugal pump, 44- second water supply line, 45- liquid collecting Pipe, 46- let out return pipe road, 47- softens water branch supply line, 5- plasma igniter, 6- air distribution system, 61- high pressure nitrogen gas Bottle group, 62- medium pressure nitrogen gas bottle, 63- high pressure gas pipeline road, pressure gas pipeline in 64-, 65- regulator, 66- air duct, 7- steam ejection system, 71- steam distributor, 72- one-level induction apparatus, 721- receiving chamber, 722- vacuum pipe, 723- vacuum Butterfly valve, 724- nozzles with injector, 725- choke manifold, 7251- mixing chamber, 7252- connecting pipe, 7253- diffuser casing, bis- grades of 73- Induction apparatus, 74- sound damping tower, 75- switch valve, 8- straight tube, 9- medium pipeline, 10- experimental cabin, 81- corrugated tube, 82- ball valve, 83- filter, 84- pressure measuring element, 85- temperature-measuring element, 86- effusion meter, 87- restricting orifice, 88- nitrogen blow-off pipe Road, 89- stop valve, 90- centrifugal pump, 91- reflow of alcohol pipeline, 92- matrix orifice plate, 93- vessel safety valve, 94- spark arrester, 96- gate valve, 97- check-valves, 98- reducer union, 99- relief valve.
Specific embodiment
During meeting electromotor long-range exhaust system test, per second can be by several kilograms to hundreds of kilogram in experimental cabin of combustion Gas gaseous mixture is smoothly discharged, and so that experimental cabin vacuum is maintained in claimed range all the time, the invention provides a kind of space flight is started Machine test bay long-range gas extraction system gas extraction system possesses realizes electromotor direct-connected test more than 3000s, free jet test 350s Above ability.
As depicted in figs. 1 and 2, this system includes steam generator 1, ethanol supply system 2, liquid oxygen supply system 3, soft Change water supply system 4, plasma igniter 5, air distribution system 6 and steam ejection system 7;
Steam generator 4 includes straight tube 8 and four medium pipelines 9 being arranged in straight tube 8;Four medium pipelines 9 wrap Include ethanol pipeline, liquid oxygen line and two softening waterpipes;
The top center of straight tube 8 installs plasma igniter 5;The ethanol pipeline of four medium pipelines 9 and ethanol supply system System 2 connection;Liquid oxygen line is connected with liquid oxygen supply system 3;Two are softened waterpipe and are all connected with softening water supply system 3;Directly The lower end of cylinder 8 is connected with steam ejection system 7;Air distribution system 6 is used for ethanol supply system 2, liquid oxygen supply system 3, ion Lighter 5 and steam ejection system 6 provide Nitrogen source gases.
The basic functional principle of this system is:
During test, ethanol, liquid oxygen, softened water are sent to steam generator after being pressurizeed by respective system, in steam generator Interior ignition by plasma igniter lights liquid oxygen and ethanol, forms high-temperature fuel gas and softened water is heated generation water vapour.Water steams Vapour enters steam ejection system, the air mixture injection in engine test cabin is gone out, and maintains vacuum chamber lengthy pressure Within the specific limits.Flow through air mixture etc. in the water vapour of steam ejection system and engine test cabin and be discharged into air.
It will usually be made using multiple stage steam generator and multiple steam ejection system simultaneously during actual tests Industry, thus meet long-time, stable block testing stand exhaust system test.
This comes as a example sentencing 8 steam generators and 8 steam ejection systems each portion in this system is tested in part Platform deployment scenario is introduced:
8 steam generators are positioned over that 4 steam generators are interior, and each steam generator is interior to be placed in parallel 2 steam generators.Steam generator utilizes ethanol and liquid oxygen burning, and softened water is heated into water vapour, and every water steams The vapour generator water vapour that can produce hundred kilograms per second.
8 steam ejection systems are positioned in steam pump house, totally 5 layers of pump house, and the bottom is steam conveying pipe, from the 2nd Layer starts to the 5th layer, and every layer is placed in parallel 2 steam ejection pumps.
In ethanol supply system, ethanol is by 2 35m3Alcohol container is supplied, and the main supply line of ethanol, in steam generator Between outer be divided into 8 tunnel branches, respectively 8 steam generators supply ethanol.
By 2 40m of liquid oxygen in liquid oxygen supply system3Liquid oxygen container is supplied, and the main supply line of liquid oxygen, in steam generator Interior be divided into 8 tunnel branches, respectively 8 steam generators supply liquid oxygen.
Softened water is a set of single softening water supply by softening the diesel pump supply of 4, pond, every diesel oil pump discharge Pipeline, is responsible for two interior steam generator supply softened waters of steam generator.
Air distribution system is by 9 4m3/ pn35mpa nitrogen gas cylinder is linked to be one group as high pressure nitrogen gas cylinders group, 1 4m3/ Pn35mpa nitrogen gas cylinder as medium pressure nitrogen gas bottle be liquid oxygen supply system, ethanol supply system, soften water supply system, etc. The nitrogen of its required certain pressure and flow supplied by ionic points firearm etc..
Concrete connection is: 1 steam generator and 1 steam ejection Cascade System, constitutes 1 group of gas extraction system, and its 7 groups of heat-extraction systems of remaininging are parallel relationship.8 groups of gas extraction system converge on a vacuum pipe with parallel way, vacuum pipe with send out Motivation experimental cabin connects.
Below in conjunction with the accompanying drawings, to the ethanol supply system in this system, liquid oxygen supply system, soften water supply system, The concrete structure of steam ejection system and air distribution system is described:
As shown in figure 3, ethanol supply system 2 includes alcohol container 21, alcohol recycle container 22, the main supply line of ethanol 23rd, multiple ethanol branches supply line 24, ethanol filling pipeline 25, ethanol let out return pipe road 26, pressure pipeline 27 and relief tube Road 28;
The entrance of the main supply line of ethanol 23 respectively with alcohol container 21 outlet, in parallel on the main supply line of ethanol 23 There is multiple ethanol branches supply line 24;Multiple ethanol branches supply line 24 is connected with multiple steam generators 1 respectively;Wine Essence is let out return pipe road 26 one end supply line 23 main with ethanol and is connected, and the other end is connected with alcohol recycle container 21;Ethanol filler pipe Road 25 one end is connected with ethanol source, and the other end is connected with alcohol container 21;Pressure pipeline 27 one end is connected with pressurization air source, another End is connected with alcohol container 21;Relief pipeline 28 one end and atmosphere, the other end is connected with alcohol container;
On the main supply line of ethanol 23, the flow direction along ethanol is sequentially arranged with corrugated tube 81, ball valve 82, filter 83, pressure Measuring cell 84 and temperature-measuring element 85;
On each ethanol branch supply line 24, the flow direction along ethanol is sequentially installed with ball valve 82, effusion meter 86, throttling Orifice plate 87, pressure measuring element 84 and temperature-measuring element 85;Each ethanol branch supply line 24 is sent out with each water vapour It is connected with nitrogen blow-off's pipeline 88, nitrogen blow-off's pipeline 88 is provided with stop valve 89, pressure between the ethanol pipe joint of raw device 1 Measuring cell 84 and temperature-measuring element 85;
Ethanol fills the flow direction along ethanol on pipeline 25 and installs centrifugal pump 90, filter 83 and ball valve 82 successively;Ethanol It is also associated with, on filling pipeline 25, the alcohol recycle pipeline 91 that is connected with alcohol recycle container, for by the wine of alcohol recycle container Essence is filled into alcohol container 21 again;
On pressure pipeline 27, the flow direction along pressurization gas is provided with filter 83, ball valve 82, matrix orifice plate 92, pressure survey Amount element 84 and temperature-measuring element 85;Matrix orifice plate 92 is made up of side by side the pipeline of 5 different-diameters, on each pipeline It is both provided with the orifice plate of 1 different pore size;
Vessel safety valve 93 is connected on relief pipeline 28, spark arrester 94 is installed in relief pipeline outlet additional.
In addition, ethanol supply system also includes ethanol atmospheric pipe 29, described ethanol atmospheric pipe 29 is opened in ethanol master Supply line 23 top, ethanol atmospheric pipe 29 is provided with ball valve 82 and the observing tube for observing mobility status.
As shown in figure 4, liquid oxygen supply system 3 includes liquid oxygen container 31, liquid oxygen returnable 32, the main supply line of liquid oxygen 33rd, multiple liquid oxygen branches supply line 34, liquid oxygen let out return pipe road 35, liquid oxygen filling pipeline 36, pressure pipeline 27 and relief tube Road 28;
The entrance of the main supply line of liquid oxygen 33 respectively with liquid oxygen container 31 outlet, in parallel on the main supply line of liquid oxygen 33 There is multiple liquid oxygen branches supply line 34;Multiple liquid oxygen branches supply line 34 is connected with multiple steam generators 1 respectively;Liquid Oxygen is let out return pipe road 35 one end supply line 33 main with liquid oxygen and is connected, and the other end is connected with liquid oxygen returnable 32;Liquid oxygen filler pipe Road 36 one end is connected with liquid oxygen source of the gas, and the other end is connected with liquid oxygen container 31;Pressure pipeline 27 one end is connected with pressurization air source, separately One end is connected with liquid oxygen container;Relief pipeline 28 one end and atmosphere, the other end is connected with liquid oxygen container;
On the main supply line of liquid oxygen 33, the flow direction along liquid oxygen is sequentially arranged with corrugated tube 81, ball valve 82 and 83 filters;
On each liquid oxygen branch supply line 34, the flow direction along liquid oxygen is provided with effusion meter 86, restricting orifice 87, ball valve 82nd, pressure measuring element 84 and temperature-measuring element 85;Each liquid oxygen branch supply line 34 and each steam generator It is connected with nitrogen blow-off's pipeline 88, nitrogen blow-off's pipeline 88 is provided with stop valve 89, pressure measxurement unit between liquid oxygen line interface Part 84 and temperature-measuring element 85;
On liquid oxygen filling pipeline 36, filter 83 and stop valve 89 are installed;It is also associated with nitrogen on liquid oxygen filling pipeline 36 to blow Except pipeline 88;
On pressure pipeline 27, the flow direction along pressurization gas is provided with filter 83, ball valve 82, matrix orifice plate 92, pressure survey Amount element 84 and temperature-measuring element 85;Matrix orifice plate 82 is made up of side by side the pipeline of 5 different-diameters, on each pipeline It is both provided with the orifice plate of 1 different pore size;
Vessel safety valve 93 is connected on relief pipeline 28, spark arrester 94 is installed in relief pipeline outlet additional.
Liquid oxygen supply system 3 also includes liquid oxygen atmospheric pipe 37;Liquid oxygen atmospheric pipe 37 is opened in the main supply line of liquid oxygen 33 tops, liquid oxygen atmospheric pipe 37 is provided with ball valve 82 and temperature-measuring element 85.
As shown in figure 5, soften water supply system to include softening pond 41, the first water supply line 42, centrifugal pump 43, second confession Waterpipe 44, collector tube 45 and let out return pipe road 46;
Soften and be connected by the first water supply line 42 between pond 41 and centrifugal pump 43, along soft on the first water supply line 42 The flow direction changing water is sequentially installed with gate valve 96, ball valve 82, filter 83 and pressure measuring element 84;
Second water supply line 44 one end is connected with centrifugal pump 43, and the other end is vertically connected with collector tube 45;Collector tube 45 One end is closed, and the other end passes sequentially through reducer union 98 and return pipe road 46 is let out in ball valve 82 connection;Collector tube 45 is near the position of closing Put and be connected with two softening water branch supply lines 47;Two soften water branch supply line 47 respectively with steam generator Softened water pipeline communication;
Between second feed pipe 44 and collector tube, the flow direction along softened water is installed check-valves 97, gate valve 96 successively, is filtered Device 83 and pressure measuring element 84;Each softens water branch supply line 47 and softens waterpipe edge with each steam generator The flow direction softened water is installed successively and is respectively mounted effusion meter 86, filter 83, relief valve 99, stop valve 89, pressure measuring element 84 and restricting orifice 87.
As shown in fig. 6, steam ejection system 7 includes steam distributor 71,72, two grades of induction apparatus of one-level induction apparatus 73rd, sound damping tower 74 and switch valve 75;
One-level induction apparatus 72 and two grades of induction apparatus 73 are connected in series, and the steam inlet of one-level induction apparatus 72 is passed through to cut Change valve 75 to connect with steam distributor 71;The steam inlet of two grades of induction apparatus 73 is connected with steam distributor 71;Two grades are drawn The steam (vapor) outlet of injection device 73 is connected with external environment condition by sound damping tower 74;The evacuation entrance of one-level induction apparatus 72 and test Cabin 10 connects;Steam distributor connects the outlet of straight tube.
As shown in FIG. 7 and 8, one-level induction apparatus 72 includes receiving chamber 721, vacuum pipe 722, vacuum butterfly valve 723, injection Jet pipe 724 and choke manifold 725;
Nozzles with injector 724 is Rafael nozzle structure, and nozzles with injector 724 is inserted in receiving chamber 721, nozzles with injector 724 Entrance be exposed at that receiving chamber 721 is outside and entrance of nozzles with injector 724 receives outside steam generator 1 generation Steam, the outlet of nozzles with injector 724 is located in receiving chamber 721 and is connected with choke manifold 725 entrance;
The side mounting vacuum tube road 722 of receiving chamber 721;Vacuum pipe 722 passes through vacuum butterfly valve 723 and engine test Cabin connects;One-level induction apparatus 72 is identical with two grades of induction apparatus 73 structures;.
Nozzles with injector 724 is inserted in receiving chamber 721 for three and spaced 120 °;The quantity of choke manifold 725 Consistent with nozzles with injector 724.
Choke manifold 725 includes mixing chamber 7251, connecting pipe 7252 and the diffuser casing 7253 being sequentially communicated;Mixing chamber 7251 entrance and the outlet coaxial communication of nozzles with injector 724.
Mixing chamber 7251 is gradually reduced from entrance to outlet diameter;The constant diameter of connecting pipe 7252 is constant;Diffuser casing 7253 are gradually increased from entrance to outlet diameter.
As shown in figure 9, air distribution system 6 includes high pressure nitrogen gas cylinders group 61, medium pressure nitrogen gas bottle 62, high pressure gas pipeline road 63rd, middle pressure gas pipeline 64, regulator 65 and multiple air duct 66;
High pressure gas pipeline road 63 one end connects high pressure nitrogen gas cylinders group 61, and the other end connects regulator 65 entrance;Debugging After the outlet of device 65 multiple air ducts 66 in parallel respectively with nitrogen blow-off pipeline, plasma igniter, the main supply pipe of liquid oxygen The main supply line of road, ethanol and pressure pipeline connection;
Middle pressure gas pipeline 64 one end connects medium pressure nitrogen gas bottle 62, and the other end connects regulator 65 entrance;Pressure regulation fills Put 65 outlets to connect with steam ejection system 2.
The test technical process of the present invention is as follows:
Outside arcing → liquid oxygen filling → the ring of system mode inspection → unit testing → integration test → plasma igniter Environment parameter measurement and parameter show → pressure record zero-bit → ethanol pipeline filling → softening water lines filling → liquid oxygen pipeline blows Except displacement, pre-cooling → first time early warning → ethanol tank supercharging → second warning → LOX tank supercharging → test run → end work Make.

Claims (8)

1. a kind of airspace engine test bay long-range gas extraction system it is characterised in that: include steam generator, ethanol supply system System, liquid oxygen supply system, softening water supply system, plasma igniter, air distribution system and steam ejection system;
Described steam generator includes straight tube and four medium pipelines being arranged in straight tube;Four medium pipelines include ethanol Pipeline, liquid oxygen line and two softening waterpipes;
The top center of straight tube installs plasma igniter;The ethanol pipeline of four medium pipelines is connected with ethanol supply system; Liquid oxygen line is connected with liquid oxygen supply system;Two are softened waterpipe and are all connected with softening water supply system;The lower end of straight tube with Steam ejection system connectivity;Air distribution system is used for drawing to ethanol supply system, liquid oxygen supply system, ionic points firearm and steam System of penetrating provides Nitrogen source gases.
2. airspace engine test bay long-range gas extraction system according to claim 1 it is characterised in that: described ethanol supply System includes alcohol container, alcohol recycle container, the main supply line of ethanol, multiple ethanol branches supply line, ethanol filler pipe Road, ethanol let out return pipe road, ethanol pressure pipeline;
The entrance of the main supply line of ethanol respectively with alcohol container outlet, the main supply line of ethanol is parallel with multiple ethanol Branch's supply line;Multiple ethanol branches supply line is connected with multiple steam generators respectively;Return pipe road one end let out by ethanol Supply line main with ethanol connects, the other end and alcohol recycle reservoir;Ethanol filling pipeline one end is connected with ethanol source, separately One end is connected with alcohol container;Pressure pipeline one end is connected with pressurization air source, and the other end is connected with alcohol container;Relief pipeline one End and atmosphere, the other end is connected with alcohol container;
On the main supply line of ethanol along ethanol flow direction be sequentially arranged with corrugated tube, ball valve, filter, pressure measuring element and Temperature-measuring element;
On each ethanol branch supply line, the flow direction along ethanol is sequentially installed with ball valve, effusion meter, restricting orifice, pressure survey Amount element and temperature-measuring element;The ethanol pipe joint of each ethanol branch supply line and each steam generator it Between be connected with nitrogen blow-off's pipeline, nitrogen blow-off's pipeline is provided with stop valve, pressure measuring element and temperature-measuring element;
Ethanol fills the flow direction along ethanol on pipeline and installs centrifugal pump, filter and ball valve successively;On ethanol filling pipeline also It is connected with the pipeline being connected with alcohol recycle container, for the ethanol of alcohol recycle container is filled into alcohol container again;
On pressure pipeline, the flow direction along pressurization gas is provided with filter, ball valve, matrix orifice plate, pressure measuring element and temperature Degree measuring cell;Matrix orifice plate is made up of side by side the pipeline of 5 different-diameters, and each pipeline is both provided with 1 different hole The orifice plate in footpath;
Vessel safety valve is connected on relief pipeline, spark arrester is installed in relief pipeline outlet additional.
3. airspace engine test bay long-range gas extraction system according to claim 2 it is characterised in that: described ethanol supply System also includes ethanol atmospheric pipe, and described ethanol atmospheric pipe is opened in ethanol main supply line top, ethanol atmospheric pipe On ball valve is installed and for observing the observing tube of mobility status.
4. airspace engine test bay long-range gas extraction system according to claim 1 it is characterised in that:
Described liquid oxygen supply system includes liquid oxygen container, liquid oxygen returnable, the main supply line of liquid oxygen, the supply of multiple liquid oxygen branch Pipeline, liquid oxygen let out return pipe road, liquid oxygen filling pipeline, pressure pipeline and relief pipeline;
The entrance of the main supply line of liquid oxygen respectively with liquid oxygen container outlet, the main supply line of liquid oxygen is parallel with multiple liquid oxygen Branch's supply line;Multiple liquid oxygen branches supply line is connected with multiple steam generators respectively;Liquid oxygen lets out return pipe road one end Supply line main with liquid oxygen connects, and the other end is connected with liquid oxygen returnable;Liquid oxygen filling pipeline one end is connected with liquid oxygen source of the gas, The other end is connected with liquid oxygen container;Pressure pipeline one end is connected with pressurization air source, and the other end is connected with liquid oxygen container;Relief pipeline One end and atmosphere, the other end is connected with liquid oxygen container;
On the main supply line of liquid oxygen, the flow direction along liquid oxygen is sequentially arranged with corrugated tube, ball valve and filter;
On each liquid oxygen branch supply line, the flow direction along liquid oxygen is provided with effusion meter, restricting orifice, ball valve, pressure measxurement unit Part and temperature-measuring element;It is connected between each liquid oxygen branch supply line and each steam generator liquid oxygen line interface There is nitrogen blow-off's pipeline, nitrogen blow-off's pipeline is provided with stop valve, pressure measuring element and temperature-measuring element;
On liquid oxygen filling pipeline, filter and stop valve are installed;It is also associated with nitrogen blow-off's pipeline on liquid oxygen filling pipeline;
On pressure pipeline, the flow direction along pressurization gas is provided with filter, ball valve, matrix orifice plate, pressure measuring element and temperature Degree measuring cell;Matrix orifice plate is made up of side by side the pipeline of 5 different-diameters, and each pipeline is both provided with 1 different hole The orifice plate in footpath;
Vessel safety valve is connected on relief pipeline, spark arrester is installed in relief pipeline outlet additional.
5. airspace engine test bay long-range gas extraction system according to claim 4 it is characterised in that: described liquid oxygen supply System also includes liquid oxygen atmospheric pipe;Liquid oxygen atmospheric pipe is opened in liquid oxygen main supply line top, and liquid oxygen atmospheric pipe is pacified Equipped with ball valve and temperature-measuring element.
6. airspace engine test bay long-range gas extraction system according to claim 1 it is characterised in that: described softened water supplies System is answered to include softening pond, the first water supply line, centrifugal pump, the second water supply line, collector tube and let out return pipe road;
Soften and be connected by the first water supply line between pond and centrifugal pump, on the first water supply line along softened water flow direction according to Secondary gate valve, ball valve, filter and pressure measuring element are installed;
Second water supply line one end is connected with centrifugal pump, and the other end is vertically connected with collector tube;One end closing of collector tube, another End passes sequentially through reducer union and return pipe road is let out in ball valve connection;Collector tube is connected with two softening water branch near the position of closing Supply line;Two softening water branch supply line softened water pipeline communications with steam generator respectively;
Between second feed pipe and collector tube, the flow direction along softened water installs check-valves, gate valve, filter and pressure successively Measuring cell;Each soften water branch supply line and each steam generator soften waterpipe along softened water flow direction according to Secondary installation effusion meter, filter, relief valve, stop valve, pressure measuring element and restricting orifice.
7. airspace engine test bay long-range gas extraction system according to claim 1 it is characterised in that: described steam ejection System includes steam distributor, one-level induction apparatus, two grades of induction apparatus, sound damping tower and switch valve;
One-level induction apparatus and two grades of induction apparatus are connected in series, and switch valve and steaming are passed through in the steam inlet of one-level induction apparatus Vapour allotter connects;The steam inlet of two grades of induction apparatus is connected with steam distributor;The steam (vapor) outlet of two grades of induction apparatus leads to Cross sound damping tower to connect with external environment condition;The evacuation entrance of one-level induction apparatus is connected with engine test cabin;Steam distributor Connect the outlet of straight tube;
Described one-level induction apparatus includes receiving chamber, vacuum pipe, vacuum butterfly valve, nozzles with injector and choke manifold;
Described nozzles with injector is Rafael nozzle structure, and nozzles with injector is inserted in receiving chamber, and the entrance of nozzles with injector is exposed at The entrance of receiving chamber outside and nozzles with injector receives the high-temperature steam that steam generator produces, and the outlet of nozzles with injector is located at Accept indoor and connect with choke manifold entrance;
The side mounting vacuum tube road of receiving chamber;Vacuum pipe is connected with engine test cabin by vacuum butterfly valve;Described one-level Induction apparatus and two grades of induction apparatus structures are identical;
Described nozzles with injector is inserted in receiving chamber for three and spaced 120 °;The quantity of described choke manifold and injection Jet pipe is consistent;
Described choke manifold includes mixing chamber, connecting pipe and the diffuser casing being sequentially communicated;The entrance of described mixing chamber with draw Penetrate the outlet coaxial communication of jet pipe;
Described mixing chamber is gradually reduced from entrance to outlet diameter;The constant diameter of described connecting pipe is constant;Described diffuser casing It is gradually increased from entrance to outlet diameter.
8. airspace engine test bay long-range gas extraction system according to claim 1 it is characterised in that: described air distribution system Including high pressure nitrogen gas cylinders group, medium pressure nitrogen gas bottle, high pressure gas pipeline road, middle pressure gas pipeline, regulator and multiple send Feed channel;
High pressure gas pipeline road one end connects high pressure nitrogen gas cylinders group, and the other end connects regulator entrance;The outlet of debugging apparatus After multiple air ducts in parallel respectively with nitrogen blow-off pipeline, plasma igniter, the main supply line of liquid oxygen, the main supply pipe of ethanol Road and pressure pipeline connection;
Middle pressure gas pipeline one end connects medium pressure nitrogen gas bottle, and the other end connects regulator entrance;Regulator outlet and steaming Vapour ejection system connects.
CN201610814419.XA 2016-09-09 2016-09-09 Airspace-engine test-bed long-range exhaust system CN106338401A (en)

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