CN103499020B - Vacuum Plume effect experiment system hydrogen gas system - Google Patents
Vacuum Plume effect experiment system hydrogen gas system Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of Vacuum Plume effect experiment system hydrogen gas system, comprise High Pressure Hydrogen gas circuit, commander/displacement gas circuit, Zhu Qing road, Fen Qing road, pneumatic valve Dominating paths and Large Copacity low pressure hydrogen storage tank road; The present invention uses air-regulation type decompressor to regulate low pressure hydrogen pressure, and degree of regulation is high, it is little to fluctuate, and is particularly suitable for the Vacuum Plume effect test of low-pressure low flow.Air-regulation type decompressor directly uses high pressure nitrogen as source of the gas, is controlled by needle regulator, reduces pressure to high pressure nitrogen without the need to re-using decompressor, improves security while reducing system complexity.Mesohigh nitrogen road of the present invention is except providing source of the gas for air-regulation type decompressor, also for system provides metathesis, the air displacement before system access hydrogen in pipeline is nitrogen, avoids the air reaction in hydrogen and pipeline to cause security incident, further simplification system, improves security.
Description
Technical field
The present invention relates to a kind of Vacuum Plume effect experiment system hydrogen gas system, belong to gaseous tension control technology field.
Background technology
The penniform high-speed and high-temperature jet flow produced when engine works under vacuum conditions is called plume.Plume can produce aerodynamic effect, Aerodynamic Heating effect, polluting effect, galvanomagnetic effect etc. to spacecraft, and be referred to as plume effect, plume effect can bring impact to the aerial mission of spacecraft.Space carrying test and ground simulation test are comprised to the experimental study of plume effect.Space carrying test figure is true and reliable, but experimentation cost is high, the cycle is long, number of times is few, obtains data volume limited.It is large that injection ground simulation test system builds one-time investment, and single test cost is low, can repeat the test of different operating mode and different conditions, obtains great number tested data.Therefore, ground simulation test becomes the first-selection of plume effect test research.
The Vacuum Plume effect experiment system that work office of national defence section in 2007 project verification, BJ University of Aeronautics & Astronautics invest to build is the ground simulation system that the domestic seat of honour is specifically designed to the research of plume effect test.By using actual engine or compression ratio engine to carry out fire trial in vacuum chamber, measuring Vacuum Plume parameters, carrying out plume effect study.Working medium storage and supply system is as one of important subsystem forming Vacuum Plume pilot system, and effect is for the normal work of engine provides incendiary agent and the hydrogenant agent of required pressure and flow, or realizes the functions such as supercharging, blowing, displacement.Wherein, hydrogen gas system is one of critical system of working medium storage and supply system, mainly for Vacuum Plume effect test provides, pressure is accurate, stability of flow, safe and reliable hydrogen working medium, pressure regulation spectrum is large, and can remote monitoring line pressure, by-pass valve control opening and closing, simultaneously compromise between security and applicability.
Domesticly at present there is no the hydrogen gas system being specifically designed to Vacuum Plume effect test, existing engine test hydrogen gas system is mainly for the engine test of carrying out in atmospheric environment provides hydrogen, general is all certain model or task particular design, the pressure that system provides is higher, flow is comparatively large, is not suitable for the low-pressure low flow engine of plume effect test rail control used or contracting ratio; And the feature of Vacuum Plume effect study be multitask, multi-state research object comprise various rail control or compression ratio engine, pressure and flow adjustment range larger, therefore, the hydrogen gas system designing highly versatile, disparity items demand can be met, be applicable to Vacuum Plume effect test is needed.
Summary of the invention
The object of the invention is to solve the problem, proposing a kind of Vacuum Plume effect experiment system hydrogen gas system, for Vacuum Plume effect experiment system provides, pressure is accurate, stability of flow, safe and reliable hydrogen working medium.
A kind of Vacuum Plume effect experiment system hydrogen gas system, comprises High Pressure Hydrogen gas circuit, commander/displacement gas circuit, Zhu Qing road, Fen Qing road, pneumatic valve Dominating paths and Large Copacity low pressure hydrogen storage tank road;
High Pressure Hydrogen gas circuit comprises high pressure hydrogen air inlet hand valve, hydrogen blowout-back pressure gauge and pressure transducer, high pressure hydrogen pipe filter and high pressure hydrogen venting hand valve thereof;
High pressure hydrogen air inlet hand valve inlet connects high pressure hydrogen source of the gas, exports the entrance being connected high pressure hydrogen pipe filter and high pressure venting hand valve by threeway; High pressure hydrogen venting hand valve outlet port connects hydrogen and to release outlet; Hydrogen blowout-back pressure gauge and pressure transducer thereof are connected on the pipeline between high pressure hydrogen air inlet hand valve and high pressure hydrogen pipe filter; The outlet of high pressure hydrogen pipe filter connects the entrance of main hydrogen decompressor and point hydrogen decompressor;
Commander/displacement gas circuit comprises high pressure nitrogen air inlet hand valve, high pressure nitrogen tensimeter, high pressure nitrogen filtrator, high pressure nitrogen venting hand valve, commander's air inlet hand valve, displacement air inlet hand valve, commander's venting hand valve, main hydrogen commander throttling valve, main hydrogen commander surge tank, main hydrogen commanded pressure table, point hydrogen commander throttling valve, point hydrogen commander surge tank, point hydrogen commanded pressure table;
High pressure nitrogen air inlet hand valve air inlet connects high pressure nitrogen source of the gas, and outlet connects high pressure nitrogen filter inlet, and high pressure nitrogen tensimeter is connected on the pipeline between high pressure nitrogen air inlet hand valve and high pressure nitrogen filtrator; High pressure nitrogen filter outlet connects the entrance of high pressure nitrogen venting hand valve, commander's air inlet hand valve, displacement air inlet hand valve respectively by four-way; Commander's air inlet hand valve outlet port connects the entrance of commander's venting hand valve, main hydrogen commander's throttling valve and point hydrogen commander throttling valve respectively by four-way; Displacement air inlet hand valve outlet port is connected on the pipeline between high pressure hydrogen air inlet hand valve and high pressure hydrogen pipe filter; The exit outlet of hand valve of high pressure nitrogen venting hand valve and commander is connected hydrogen and releases outlet; The outlet of main hydrogen commander throttling valve connects commander's gas air intake opening of main hydrogen commander surge tank, main hydrogen commanded pressure table and main hydrogen decompressor by four-way; The outlet of hydrogen commander throttling valve is divided to connect by four-way commander's gas air intake opening that point hydrogen commands a surge tank, point hydrogen commanded pressure table and point hydrogen decompressor;
Zhu Qing road comprises main hydrogen decompressor, main hydrogen low pressure gauge and pressure transducer thereof, main hydrogen pneumatic valve, main hydrogen venting hand valve and safety valve;
Main hydrogen decompressor entrance connects high pressure hydrogen pipe filter, outlet connects main hydrogen and moves valve inlet, by 3 threeways are connected main hydrogen low pressure gauge and pressure transducer thereof respectively, safety valve, main hydrogen exit hand valve entrance between main hydrogen decompressor with main hydrogen pneumatic valve; Main hydrogen moves valve outlet port and is connected to test bay Zhu Qing road; The outlet of safety valve and main hydrogen venting hand valve is connected hydrogen and releases outlet;
Fen Qing road comprises a point hydrogen decompressor, point hydrogen low pressure gauge and pressure transducer thereof, point hydrogen pneumatic valve, point hydrogen venting hand valve and safety valve;
Hydrogen decompressor entrance is divided to connect high pressure hydrogen pipe filter, outlet connects point hydrogen and moves valve inlet, is connected point hydrogen low pressure gauge and pressure transducer thereof, safety valve, the entrance that divides hydrogen to exit hand valve respectively between point hydrogen decompressor with point hydrogen pneumatic valve by 3 threeways; Divide hydrogen to move valve outlet port and be connected to test bay Fen Qing road; The outlet of safety valve and point hydrogen venting hand valve is connected hydrogen and releases outlet;
Pneumatic valve Dominating paths comprises operation nitrogen air inlet hand valve, operation nitrogen gas filters, main hydrogen operation solenoid valve, point hydrogen operation solenoid valve, explosion-proof tank and bleeder holes thereof;
Operation nitrogen air inlet hand valve inlet attended operation Nitrogen source gases, outlet attended operation nitrogen gas filters entrance; The outlet of operation nitrogen gas filters connects the entrance of main hydrogen operation solenoid valve and point hydrogen operation solenoid valve; Main hydrogen operation solenoid valve and point outlet of hydrogen operation solenoid valve are connected the operation gas entrance of main hydrogen pneumatic stopping valve and point hydrogen pneumatic stopping valve respectively by two pipes, in order to control the opening and closing of pneumatic stopping valve; Main hydrogen operation solenoid valve and a point hydrogen operation solenoid valve are placed in and have in the explosion-proof tank of relief port;
Large Copacity low pressure hydrogen storage tank road comprises low pressure hydrogen storage tank, low pressure hydrogen storage tank air inlet hand valve, low pressure hydrogen pressure of storage tank table and pressure transducer thereof, low pressure hydrogen storage tank venting hand valve and low pressure hydrogen tank safety valve;
Low pressure hydrogen storage tank air inlet hand valve inlet is connected to the pipeline between point hydrogen decompressor and point hydrogen pneumatic valve by dismantled and assembled joint A, and outlet connects the entrance of low pressure hydrogen pressure of storage tank table and pressure transducer, low pressure hydrogen storage tank and low pressure hydrogen tank safety valve respectively; Low pressure hydrogen outlet connects low pressure hydrogen storage tank venting hand valve inlet; Low pressure hydrogen storage tank venting hand valve outlet port is connected to hydrogen by dismantled and assembled joint B and releases outlet; The outlet of low pressure hydrogen tank safety valve is connected to hydrogen by dismantled and assembled joint C and releases outlet;
Test bay hydrogen entrance of releasing connects hydrogen and to release outlet.
The invention has the advantages that:
(1) use air-regulation type decompressor to regulate low pressure hydrogen pressure, degree of regulation is high, fluctuate little, be particularly suitable for the Vacuum Plume effect test of low-pressure low flow.Air-regulation type decompressor directly uses high pressure nitrogen as source of the gas, is controlled by needle regulator, reduces pressure to high pressure nitrogen without the need to re-using decompressor, improves security while reducing system complexity.
(2) elevated pressure nitrogen gas circuit is except providing source of the gas for air-regulation type decompressor, also for system provides metathesis, the air displacement before system access hydrogen in pipeline is nitrogen, avoids the air reaction in hydrogen and pipeline to cause security incident, further simplification system, improves security.
(3) system Zhu Qing road, Fen Qing road provide the hydrogen of two-way below pressure 6MPa respectively, can backup each other, also can carry out the test needing two-way hydrogen simultaneously, as the test of engine two-shipper.Therefore the versatility of system is comparatively strong, and can meet the demand of multitask.
(4) hydrogen on use pneumatic valve replacement solenoid control Zhu Qing road, Fen Qing road enters test bay pipeline, avoids producing spark ignition during solenoid valve power on/off or igniting hydrogen causing security incident.Use nitrogen to control source of the gas as pneumatic valve, by solenoid control nitrogen break-make, and then control pneumatic valve, solenoid valve is placed in special explosion-proof tank, completely isolated with hydrogen, and explosion-proof tank has relief port guard box internal gas pressure normally, and system is more safe and reliable.
(5) low pressure hydrogen storage tank is connected to hydrogen gas system by dismantled and assembled joint, can by Fen Qing road or other gas source feed, stores and provides the low pressure hydrogen of below 1.2MPa, being particularly suitable for the hydrogen supply of the put-put that flow is lower, pressure requirements is more stable.
(6) Operation system setting is used for the pressure transducer of remote monitoring and the solenoid valve of Long-distance Control, realizes the remote monitoring to system, realizes the convenience in use procedure and security.
(7) system is without the need to nitrogen blow-off's device, reduces system complexity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, pipeline straight line represents, the oblique line on pipeline represents venting road, to show the difference with air inlet path; Tubing internal diameter capital D N represents, the concrete diameter of the numeral after DN (unit: millimeter).
Letter representation in figure is (numeral after letter is numbering, for distinguishing):
F-hand stop valve G-filtrator D-solenoid valve QD-pneumatic stopping valve A-safety valve
P-tensimeter JY-air-regulation type decompressor JL-needle regulator HC-surge tank
In figure:
F1-high pressure hydrogen air inlet hand valve F2-high pressure nitrogen air inlet hand valve F3-commands air inlet hand valve
F4-replaces air inlet hand valve F5-main hydrogen venting hand valve F6-and divides hydrogen venting hand valve
F7-low pressure hydrogen storage tank air inlet hand valve F8-high pressure nitrogen venting hand valve F9-commander venting hand valve
F10-high pressure hydrogen venting hand valve F11-operates air inlet hand valve F12-low pressure hydrogen storage tank venting hand valve
D1-main hydrogen operation solenoid valve D2-divides hydrogen to operate solenoid valve
QD1-main hydrogen pneumatic valve QD2-divide hydrogen pneumatic valve
A1-main hydrogen safety valve A2-divides hydrogen safety valve A3-low pressure hydrogen tank safety valve
The main hydrogen low pressure gauge of P1-hydrogen blowout-back pressure gauge P2-main hydrogen commanded pressure table P3-
P4-divides hydrogen commanded pressure table P5-to divide hydrogen low pressure gauge P6-nitrogen blowout-back pressure gauge
P7-low pressure hydrogen pressure of storage tank table
JY1-main hydrogen decompressor JY2-divide hydrogen decompressor
JL1-main hydrogen commander throttling valve JL2-divides hydrogen to command throttling valve
HC1-main hydrogen commander surge tank HC2-divides hydrogen to command surge tank
G1-high pressure hydrogen pipe filter G2-high pressure nitrogen filtrator G3-operates nitrogen gas filters
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Annexation:
The present invention is a kind of Vacuum Plume effect experiment system hydrogen gas system, as shown in Figure 1, comprises High Pressure Hydrogen gas circuit, commander/displacement gas circuit, Zhu Qing road, Fen Qing road, pneumatic valve Dominating paths and Large Copacity low pressure hydrogen storage tank road.
High Pressure Hydrogen gas circuit comprises high pressure hydrogen air inlet hand valve F1, hydrogen blowout-back pressure gauge P1 and pressure transducer, high pressure hydrogen pipe filter G1 and high pressure hydrogen venting hand valve F10 thereof.
High pressure hydrogen air inlet hand valve F1 entrance connects high pressure hydrogen source of the gas, exports the entrance being connected high pressure hydrogen pipe filter G1 and high pressure venting hand valve F10 by threeway; High pressure hydrogen venting hand valve F10 outlet connects hydrogen and to release outlet; Hydrogen blowout-back pressure gauge P1 and pressure transducer thereof are connected on the pipeline between high pressure hydrogen air inlet hand valve F1 and high pressure hydrogen pipe filter G1; High pressure hydrogen pipe filter G1 exports the entrance connecting main hydrogen decompressor JY1 and point hydrogen decompressor JY2.
Commander/displacement gas circuit comprises high pressure nitrogen air inlet hand valve F2, high pressure nitrogen tensimeter P6, high pressure nitrogen filtrator G2, high pressure nitrogen venting hand valve F8, commander's air inlet hand valve F3, displacement air inlet hand valve F4, commander's venting hand valve F9, main hydrogen commander throttling valve JL1, main hydrogen commander surge tank HC1, main hydrogen commanded pressure table P2, point hydrogen commander throttling valve JL2, point hydrogen commander surge tank HC2, point hydrogen commanded pressure table P4.
High pressure nitrogen air inlet hand valve F2 air inlet connects high pressure nitrogen source of the gas, and outlet connects high pressure nitrogen filtrator G2 entrance, and high pressure nitrogen tensimeter P6 is connected on the pipeline between high pressure nitrogen air inlet hand valve F2 and high pressure nitrogen filtrator G2; High pressure nitrogen filtrator G2 exports the entrance being connected high pressure nitrogen venting hand valve F8, commander's air inlet hand valve F3, displacement air inlet hand valve F4 by four-way respectively; Commander's air inlet hand valve F3 outlet connects the entrance of commander's venting hand valve F9, main hydrogen commander throttling valve JL1 and point hydrogen commander throttling valve JL2 respectively by four-way; Displacement air inlet hand valve F4 outlet is connected on the pipeline between high pressure hydrogen air inlet hand valve F1 and high pressure hydrogen pipe filter G1; The exit outlet of hand valve F9 of high pressure nitrogen venting hand valve F8 and commander is connected hydrogen and releases outlet; Main hydrogen commander throttling valve JL1 outlet connects commander's gas air intake opening of main hydrogen commander surge tank HC1, main hydrogen commanded pressure table P2 and main hydrogen decompressor JY1 by four-way; Hydrogen commander throttling valve JL2 outlet is divided to connect by four-way commander's gas air intake opening that point hydrogen commands a surge tank HC2, point hydrogen commanded pressure table P4 and point hydrogen decompressor JY2.
Zhu Qing road comprises main hydrogen decompressor JY1, main hydrogen low pressure gauge P3 and pressure transducer thereof, main hydrogen pneumatic valve QD1, main hydrogen venting hand valve F5 and safety valve A1.
Main hydrogen decompressor JY1 entrance connects high pressure hydrogen pipe filter G1, outlet connects main hydrogen pneumatic valve QD1 entrance, by 3 threeways are connected main hydrogen low pressure gauge P3 and pressure transducer thereof respectively, safety valve A1, main hydrogen exit hand valve F5 entrance between main hydrogen decompressor JY1 with main hydrogen pneumatic valve QD1; Main hydrogen pneumatic valve QD1 outlet is connected to test bay Zhu Qing road; The outlet of safety valve A1 and main hydrogen venting hand valve F5 is connected hydrogen and releases outlet.
Fen Qing road comprises a point hydrogen decompressor JY2, point hydrogen low pressure gauge P5 and pressure transducer thereof, point hydrogen pneumatic valve QD2, point hydrogen venting hand valve F6 and safety valve A2.
Hydrogen decompressor JY2 entrance is divided to connect high pressure hydrogen pipe filter G1, outlet connects a point hydrogen pneumatic valve QD2 entrance, is connected point hydrogen low pressure gauge P5 and pressure transducer thereof, safety valve A2, the entrance that divides hydrogen to exit hand valve F6 respectively between point hydrogen decompressor JY2 with point hydrogen pneumatic valve QD2 by 3 threeways; Hydrogen pneumatic valve QD2 outlet is divided to be connected to test bay Fen Qing road; An outlet of safety valve A2 and point hydrogen venting hand valve F6 is connected hydrogen and releases outlet.
Pneumatic valve Dominating paths comprises operation nitrogen air inlet hand valve F11, operation nitrogen gas filters G3, main hydrogen operation solenoid valve D1, point hydrogen operation solenoid valve D2, explosion-proof tank and bleeder holes thereof.
Operation nitrogen air inlet hand valve F11 entrance attended operation Nitrogen source gases, outlet attended operation nitrogen gas filters G3 entrance; Operation nitrogen gas filters G3 outlet connects the entrance of main hydrogen operation solenoid valve D1 and point hydrogen operation solenoid valve D2; Main hydrogen operation solenoid valve D1 and point outlet of hydrogen operation solenoid valve D2 are connected the operation gas entrance of main hydrogen pneumatic stopping valve QD1 and point hydrogen pneumatic stopping valve QD2 respectively by two pipes, in order to control the opening and closing of pneumatic stopping valve; A main hydrogen operation solenoid valve D1 and point hydrogen operation solenoid valve D2 is placed in and has in the explosion-proof tank of relief port.
Large Copacity low pressure hydrogen storage tank road comprises 1m
3low pressure hydrogen storage tank, low pressure hydrogen storage tank air inlet hand valve F7, low pressure hydrogen pressure of storage tank table P7 and pressure transducer, low pressure hydrogen storage tank venting hand valve F12 and low pressure hydrogen tank safety valve A3.
Low pressure hydrogen storage tank air inlet hand valve F7 entrance is connected to the pipeline between point hydrogen decompressor JY2 and point hydrogen pneumatic valve QD2 by dismantled and assembled joint A, and outlet connects low pressure hydrogen pressure of storage tank table P7 and pressure transducer, 1m respectively
3the entrance of low pressure hydrogen storage tank and low pressure hydrogen tank safety valve A3; 1m
3low pressure hydrogen outlet connects low pressure hydrogen storage tank venting hand valve F12 entrance; Low pressure hydrogen storage tank venting hand valve F12 outlet is connected to hydrogen by dismantled and assembled joint B and releases outlet; Low pressure hydrogen tank safety valve A3 exports and is connected to hydrogen by dismantled and assembled joint C and releases outlet.
Test bay hydrogen entrance of releasing connects hydrogen and to release outlet.
Practical function:
Zhu Qing road, Fen Qing road by air-regulation type decompressor for test bay gas circuit provides the hydrogen of two-way below pressure 6MPa respectively, can backup each other, also can carry out the test needing two-way hydrogen simultaneously, as the test of engine two-shipper, with the use of different sonic nozzles, the hydrogen of different flow can be obtained, be mainly used in the hydrogen supply of intermediate pressure, intermediate flow.Air-regulation type decompressor, by needle-like throttle valve control gas turnover surge tank regulate the pressure in surge tank, reaches the effect regulating pressure after decompressor.Large volume low-pressure hydrogen-holder is connected to hydrogen gas system by joint, can by Fen Qing road or other gas source feed, can store and the low pressure hydrogen of below 1.2MPa is provided, being mainly used in the hydrogen supply of micro-satellite cluster of low-pressure, low discharge, ensureing more accurate pressure supply.Therefore, comprise Zhu Qing road, Fen Qing road, the system pressure modification stability on Large Copacity low pressure hydrogen storage tank road, scope are wide, versatility is comparatively strong, can meet the work requirements of multitask.
Hydrogen gas system arranges remote pressure monitoring at hydrogen high pressure, main hydrogen low pressure, point hydrogen low pressure, large volume low-pressure hydrogen-holder, in main hydrogen low pressure, divide hydrogen low pressure that the solenoid valve of Long-distance Control is set, realize the remote monitoring to system, ensure the convenience in use procedure and security.
Due to the character that hydrogen is inflammable and explosive, hydrogen gas system takes stricter safe precaution measure, the security of safeguards system.Specifically comprise: use high pressure nitrogen and non-hydrogen as the adjustment source of the gas of air-regulation type decompressor, high pressure nitrogen has the effect of displacement pipeline hydrogen simultaneously; Use and control hydrogen break-make by the pneumatic valve of solenoid control, and isolation processing is carried out to solenoid valve, prevent from igniting during electromagnetic valve work or igniting hydrogen; The special hydrogen of system is released hand valve, pipeline and outlet, Zhu Qing road, Fen Qing road and large volume low-pressure hydrogen-holder are designed with safety valve, safety valve outlet is connected to hydrogen and releases pipeline, threshold value setting is carried out according to the maximum pressure value that position allows, when pipeline inner pressure is higher than safety valve secure threshold, safety valve is automatically opened and is carried out pipeline pressure release, and safeguards system is safe and reliable; The low pressure hydrogen having neither part nor lot in reaction in test bay pipeline is disposed to special outlet of releasing by hydrogen pipeline of releasing, and avoids hydrogen to be directly disposed to vacuum chamber and destroys vacuum tightness, or is disposed to test bay and causes security incident.
Operating process:
Pressure is accurate, the hydrogen gas system of stability of flow, safe and reliable hydrogen working medium for Vacuum Plume effect experiment system provides for the present invention's proposition.
(1) status checking:
Hydrogen gas system need ensure that all hand stop valves, needle regulator and solenoid valve are in closed condition before using.Connecting high pressure hydrogen to high pressure hydrogen gas entrance, connect high pressure nitrogen to high pressure nitrogen inlet, connecting low-pressure nitrogen to operating nitrogen inlet.
(2) pipeline displacement:
Before system first time uses or before placement re-uses for a long time, maybe may there is air because existing in pipeline and large volume low-pressure hydrogen-holder, needing first with nitrogen displacement air wherein, then using hydrogen exchange nitrogen.
What Zhu Qing road, Fen Qing road were replaced is operating as: open high pressure nitrogen air inlet hand valve F2, commander's air inlet hand valve F3, displacement air inlet hand valve F4 successively, slow circumvolve opens main hydrogen commander throttling valve JL1 and point hydrogen commander throttling valve JL2, observe main hydrogen low pressure gauge P3 and point hydrogen low pressure gauge P5, when pressure reaches a low voltage value (general below 0.5MPa), close throttling valve; Opening operation nitrogen air inlet hand valve F11, remote opening main hydrogen operation solenoid valve D1, point hydrogen operation solenoid valve D2 between observing and controlling, to control to open main hydrogen pneumatic valve QD1 and point hydrogen pneumatic valve QD2, more than maintaining nitrogen purge half a minute, air in pipeline is made all to be replaced into nitrogen; Close main hydrogen operation solenoid valve D1 and point hydrogen operation solenoid valve D2, to control to close main hydrogen pneumatic valve QD1 and point hydrogen pneumatic valve QD2, close displacement air inlet hand valve F4; Open high pressure hydrogen air inlet hand valve F1, open main hydrogen operation solenoid valve D1, point hydrogen operation solenoid valve D2, to control to open main hydrogen pneumatic valve QD1 and point hydrogen pneumatic valve QD2, continue more than logical hydrogen half a minute, make nitrogen in pipeline all be replaced into hydrogen; Be replaced, close main hydrogen operation solenoid valve D1 and point hydrogen operation solenoid valve D2, to control to close main hydrogen pneumatic valve QD1 and point hydrogen pneumatic valve QD2, close commander's air inlet hand valve F3, high pressure nitrogen air inlet hand valve F2, high pressure hydrogen air inlet hand valve F1.
Being operating as of large volume low-pressure hydrogen-holder displacement: open high pressure nitrogen air inlet hand valve F2, commander's air inlet hand valve F3, displacement air inlet hand valve F4 successively, slow circumvolve opens a point hydrogen commander throttling valve JL2, observe a point hydrogen low pressure gauge P5, when pressure reaches a low voltage value (general below 0.5MPa), close a point hydrogen commander throttling valve; Open low pressure hydrogen storage tank air inlet hand valve F7 and low pressure hydrogen storage tank venting hand valve F12, continue with nitrogen more than 1 minute, make the air in large volume low-pressure hydrogen-holder all be replaced into nitrogen; Close low pressure hydrogen storage tank air inlet hand valve F7, low pressure hydrogen storage tank venting hand valve F12 and displacement air inlet hand valve F4, open high pressure hydrogen air inlet hand valve F1, open low pressure hydrogen storage tank air inlet hand valve F7 and low pressure hydrogen storage tank venting hand valve F12, continue logical hydrogen more than 1 minute, make the nitrogen in large volume low-pressure hydrogen-holder all be replaced into hydrogen; After being replaced, the hand valve of all unlatchings cuts out.
(3) pressure regulation air feed:
When using Zhu Qing road air feed, open high pressure hydrogen air inlet hand valve F1, high pressure nitrogen air inlet hand valve F2, commander's air inlet hand valve F3, slow circumvolve opens main hydrogen commander throttling valve JL1, observe main hydrogen commanded pressure table P2 and main hydrogen low pressure gauge P3, when main hydrogen low pressure gauge P3 reaches the pressure of demand, close main hydrogen commander throttling valve JL1.If the registration of main hydrogen low pressure gauge P3 is higher than demand pressure, close commander's air inlet hand valve F3, open commander's venting hand valve F9, crack main hydrogen venting hand valve F5, slow circumvolve opens main hydrogen commander throttling valve JL1, observes main hydrogen commanded pressure table P2 and main hydrogen low pressure gauge P3, when the registration of main hydrogen low pressure gauge P3 reaches the pressure of demand, close main hydrogen commander throttling valve JL1, main hydrogen venting hand valve F5, commander's venting hand valve F9, open commander's air inlet hand valve F3.After regulating pressure, between observing and controlling, solenoid valve D1 can be operated to open or to close main hydrogen pneumatic valve QD1 by the main hydrogen of Long-distance Control, and monitoring hydrogen blowout-back pressure gauge P1 and main hydrogen low pressure gauge P3, realize the monitoring to Zhu Qing road air feed.
Use Fen Qing road air feed or main hydrogen, point hydrogen simultaneously air feed time, operation is similar with Zhu Qing road.
When carry out low-pressure, low discharge micro-satellite cluster Vacuum Plume effect test time, use large volume low-pressure hydrogen-holder to carry out hydrogen supply to engine, pressure, flow control are more accurate relative to decompressor, stable, and it is more convenient to operate.Large volume low-pressure hydrogen-holder is connected to the Fen Qing road of hydrogen gas system by dismantled and assembled joint A, can by Fen Qing road air feed during connection, can by other gas source feed when not connecting, open low pressure hydrogen storage tank air inlet hand valve F7, observe low pressure hydrogen pressure of storage tank table P7, when registration reaches the pressure of demand, close low pressure hydrogen storage tank air inlet hand valve F7; If the registration of low pressure hydrogen pressure of storage tank table P7 is higher than demand pressure, close low pressure hydrogen storage tank air inlet hand valve F7, open low pressure hydrogen storage tank venting hand valve F12, observe the pressure that registration reaches demand, close low pressure hydrogen storage tank venting hand valve F12.After regulating pressure, connect other gas circuit by dismantled and assembled joint B and carry out air feed.
(4) pressure release venting
After test, need to carry out pressure release venting to the hydrogen in pipeline.
Zhu Qing road, the concrete operations of Fen Qing road pressure release venting are: close high pressure hydrogen air inlet hand valve F1, high pressure nitrogen air inlet hand valve F2, commander's air inlet hand valve F3, open main hydrogen venting hand valve F5, divide hydrogen venting hand valve F6, high pressure hydrogen venting hand valve F10, commander's venting hand valve F9, main hydrogen commander throttling valve JL1, divide hydrogen commander throttling valve JL2, observe hydrogen high pressure P 1, main hydrogen commanded pressure P2, main hydrogen low pressure P3, divide a hydrogen commanded pressure P4 and point hydrogen low pressure P5, when all Pressure Drops are to 1MPa, time following, close all hand valves and throttling valve, so not only can ensure the security of system under low pressure hydrogen, and reuse hydrogen gas system in the short time without the need to carrying out replacement operator, improve convenience.
Large volume low-pressure hydrogen-holder is lower due to Hydrogen Vapor Pressure, generally exits without the need to pressure release.
Claims (2)
1. a Vacuum Plume effect experiment system hydrogen gas system, comprises High Pressure Hydrogen gas circuit, commander/displacement gas circuit, Zhu Qing road, Fen Qing road, pneumatic valve Dominating paths and Large Copacity low pressure hydrogen storage tank road;
High Pressure Hydrogen gas circuit comprises high pressure hydrogen air inlet hand valve (F1), hydrogen blowout-back pressure gauge (P1) and pressure transducer thereof, high pressure hydrogen pipe filter (G1) and high pressure hydrogen venting hand valve (F10);
High pressure hydrogen air inlet hand valve (F1) entrance connects high pressure hydrogen source of the gas, exports the entrance being connected high pressure hydrogen pipe filter (G1) and high pressure venting hand valve (F10) by threeway; High pressure hydrogen venting hand valve (F10) outlet connects hydrogen and to release outlet; Hydrogen blowout-back pressure gauge (P1) and pressure transducer thereof are connected on the pipeline between high pressure hydrogen air inlet hand valve (F1) and high pressure hydrogen pipe filter (G1); High pressure hydrogen pipe filter (G1) outlet connects the entrance of main hydrogen decompressor (JY1) and point hydrogen decompressor (JY2);
Commander/displacement gas circuit comprises high pressure nitrogen air inlet hand valve (F2), high pressure nitrogen tensimeter (P6), high pressure nitrogen filtrator (G2), high pressure nitrogen venting hand valve (F8), commander's air inlet hand valve (F3), displacement air inlet hand valve (F4), commander's venting hand valve (F9), main hydrogen commander's throttling valve (JL1), main hydrogen commander's surge tank (HC1), main hydrogen commanded pressure table (P2), divide hydrogen commander's throttling valve (JL2), divide hydrogen commander's surge tank (HC2), divide hydrogen commanded pressure table (P4),
High pressure nitrogen air inlet hand valve (F2) air inlet connects high pressure nitrogen source of the gas, outlet connects high pressure nitrogen filtrator (G2) entrance, and high pressure nitrogen tensimeter (P6) is connected on the pipeline between high pressure nitrogen air inlet hand valve (F2) and high pressure nitrogen filtrator (G2); High pressure nitrogen filtrator (G2) outlet connects the entrance of high pressure nitrogen venting hand valve (F8), commander's air inlet hand valve (F3), displacement air inlet hand valve (F4) respectively by four-way; Commander's air inlet hand valve (F3) outlet connects commander's venting hand valve (F9) respectively by four-way, main hydrogen commands throttling valve (JL1) and the entrance of point hydrogen commander's throttling valve (JL2); Displacement air inlet hand valve (F4) outlet is connected on the pipeline between high pressure hydrogen air inlet hand valve (F1) and high pressure hydrogen pipe filter (G1); The exit outlet of hand valve (F9) of high pressure nitrogen venting hand valve (F8) and commander is connected hydrogen and releases outlet; Main hydrogen commander's throttling valve (JL1) outlet connects commander's gas air intake opening of main hydrogen commander's surge tank (HC1), main hydrogen commanded pressure table (P2) and main hydrogen decompressor (JY1) by four-way; Hydrogen commander's throttling valve (JL2) outlet is divided to connect by four-way commander's gas air intake opening that a point hydrogen commands surge tank (HC2), point hydrogen commanded pressure table (P4) and point hydrogen decompressor (JY2);
Zhu Qing road comprises main hydrogen decompressor (JY1), main hydrogen low pressure gauge (P3) and pressure transducer, main hydrogen pneumatic valve (QD1), main hydrogen venting hand valve (F5) and safety valve (A1);
Main hydrogen decompressor (JY1) entrance connects high pressure hydrogen pipe filter (G1), outlet connects main hydrogen pneumatic valve (QD1) entrance, by 3 threeways are connected main hydrogen low pressure gauge (P3) and pressure transducer thereof respectively, safety valve (A1), main hydrogen exit hand valve (F5) entrance between main hydrogen decompressor (JY1) with main hydrogen pneumatic valve (QD1); Main hydrogen pneumatic valve (QD1) outlet is connected to test bay Zhu Qing road; The outlet of safety valve (A1) and main hydrogen venting hand valve (F5) is connected hydrogen and releases outlet;
Fen Qing road comprises a point hydrogen decompressor (JY2), point hydrogen low pressure gauge (P5) and pressure transducer thereof, point hydrogen pneumatic valve (QD2), point hydrogen venting hand valve (F6) and safety valve (A2);
Hydrogen decompressor (JY2) entrance is divided to connect high pressure hydrogen pipe filter (G1), outlet connects point hydrogen pneumatic valve (QD2) entrance, is connected point hydrogen low pressure gauge (P5) and pressure transducer thereof, safety valve (A2), the entrance that divides hydrogen to exit hand valve (F6) respectively between point hydrogen decompressor (JY2) with point hydrogen pneumatic valve (QD2) by 3 threeways; Hydrogen pneumatic valve (QD2) outlet is divided to be connected to test bay Fen Qing road; The outlet of safety valve (A2) and point hydrogen venting hand valve (F6) is connected hydrogen and releases outlet;
Pneumatic valve Dominating paths comprises operation nitrogen air inlet hand valve (F11), operation nitrogen gas filters (G3), main hydrogen operation solenoid valve (D1), point hydrogen operation solenoid valve (D2), explosion-proof tank and bleeder holes thereof;
Operation nitrogen air inlet hand valve (F11) entrance attended operation Nitrogen source gases, outlet attended operation nitrogen gas filters (G3) entrance; Operation nitrogen gas filters (G3) outlet connects the entrance of main hydrogen operation solenoid valve (D1) and point hydrogen operation solenoid valve (D2); Main hydrogen operation solenoid valve (D1) and point outlet of hydrogen operation solenoid valve (D2) are connected the operation gas entrance of main hydrogen pneumatic stopping valve (QD1) and point hydrogen pneumatic stopping valve (QD2) respectively by two pipes, in order to control the opening and closing of pneumatic stopping valve; Main hydrogen operation solenoid valve (D1) and point hydrogen operation solenoid valve (D2) are placed in and have in the explosion-proof tank of relief port;
Large Copacity low pressure hydrogen storage tank road comprises low pressure hydrogen storage tank, low pressure hydrogen storage tank air inlet hand valve (F7), low pressure hydrogen pressure of storage tank table (P7) and pressure transducer, low pressure hydrogen storage tank venting hand valve (F12) and low pressure hydrogen tank safety valve (A3);
Low pressure hydrogen storage tank air inlet hand valve (F7) entrance is connected to the pipeline between point hydrogen decompressor (JY2) and point hydrogen pneumatic valve (QD2) by dismantled and assembled joint A, and outlet connects the entrance of low pressure hydrogen pressure of storage tank table (P7) and pressure transducer, low pressure hydrogen storage tank and low pressure hydrogen tank safety valve (A3) respectively; Low pressure hydrogen outlet connects low pressure hydrogen storage tank venting hand valve (F12) entrance; Low pressure hydrogen storage tank venting hand valve (F12) outlet is connected to hydrogen by dismantled and assembled joint B and releases outlet; Low pressure hydrogen tank safety valve (A3) outlet is connected to hydrogen by dismantled and assembled joint C and releases outlet;
Test bay hydrogen entrance of releasing connects hydrogen and to release outlet.
2. a method of operating for Vacuum Plume effect experiment system hydrogen gas system, comprises following step:
(1) status checking:
Hydrogen gas system ensures that all hand stop valves, needle regulator and solenoid valve are in closed condition before using; Connecting high pressure hydrogen to high pressure hydrogen gas entrance, connect high pressure nitrogen to high pressure nitrogen inlet, connecting low-pressure nitrogen to operating nitrogen inlet;
(2) pipeline displacement:
Before system first time uses or before placement re-uses for a long time, need first with nitrogen displacement air wherein, then use hydrogen exchange nitrogen;
What Zhu Qing road, Fen Qing road were replaced is operating as: open high pressure nitrogen air inlet hand valve (F2), commander's air inlet hand valve (F3), displacement air inlet hand valve (F4) successively, slow circumvolve opens main hydrogen commander's throttling valve (JL1) and point hydrogen commander's throttling valve (JL2), observe main hydrogen low pressure gauge (P3) and point hydrogen low pressure gauge (P5), pressure reaches below 0.5MPa, closes throttling valve; Opening operation nitrogen air inlet hand valve (F11), main hydrogen operation solenoid valve (D1) of remote opening, point hydrogen operation solenoid valve (D2) between observing and controlling, to control to open main hydrogen pneumatic valve (QD1) and point hydrogen pneumatic valve (QD2), more than maintaining nitrogen purge half a minute, air in pipeline is made all to be replaced into nitrogen; Close main hydrogen operation solenoid valve (D1) and point hydrogen operation solenoid valve (D2), to control to close main hydrogen pneumatic valve (QD1) and point hydrogen pneumatic valve (QD2), close displacement air inlet hand valve (F4); Open high pressure hydrogen air inlet hand valve (F1), open main hydrogen operation solenoid valve (D1), point hydrogen operation solenoid valve (D2), to control to open main hydrogen pneumatic valve (QD1) and point hydrogen pneumatic valve (QD2), continue more than logical hydrogen half a minute, make nitrogen in pipeline all be replaced into hydrogen; Be replaced, close main hydrogen operation solenoid valve (D1) and point hydrogen operation solenoid valve (D2), to control to close main hydrogen pneumatic valve (QD1) and point hydrogen pneumatic valve (QD2), close commander's air inlet hand valve (F3), high pressure nitrogen air inlet hand valve (F2), high pressure hydrogen air inlet hand valve (F1);
Being operating as of large volume low-pressure hydrogen-holder displacement: open high pressure nitrogen air inlet hand valve (F2), commander's air inlet hand valve (F3), displacement air inlet hand valve (F4) successively, slow circumvolve opens point hydrogen commander's throttling valve (JL2), observe a point hydrogen low pressure gauge (P5), pressure reaches below 0.5MPa, closes a point hydrogen commander throttling valve; Open low pressure hydrogen storage tank air inlet hand valve (F7) and low pressure hydrogen storage tank venting hand valve (F12), maintaining nitrogen purge more than 1 minute, makes the air in large volume low-pressure hydrogen-holder all be replaced into nitrogen; Close low pressure hydrogen storage tank air inlet hand valve (F7), low pressure hydrogen storage tank venting hand valve (F12) and displacement air inlet hand valve (F4), open high pressure hydrogen air inlet hand valve (F1), open low pressure hydrogen storage tank air inlet hand valve (F7) and low pressure hydrogen storage tank venting hand valve (F12), continue logical hydrogen more than 1 minute, make the nitrogen in large volume low-pressure hydrogen-holder all be replaced into hydrogen; After being replaced, the hand valve of all unlatchings cuts out;
(3) pressure regulation air feed:
When using Zhu Qing road air feed, open high pressure hydrogen air inlet hand valve (F1), high pressure nitrogen air inlet hand valve (F2), commander's air inlet hand valve (F3), slow circumvolve opens main hydrogen commander's throttling valve (JL1), observe main hydrogen commanded pressure table (P2) and main hydrogen low pressure gauge (P3), when main hydrogen low pressure gauge (P3) reaches the pressure of demand, close main hydrogen commander's throttling valve (JL1), if the registration of main hydrogen low pressure gauge (P3) is higher than demand pressure, close commander's air inlet hand valve (F3), open commander's venting hand valve (F9), crack main hydrogen venting hand valve (F5), slow circumvolve opens main hydrogen commander's throttling valve (JL1), observe main hydrogen commanded pressure table (P2) and main hydrogen low pressure gauge (P3), when the registration of main hydrogen low pressure gauge (P3) reaches the pressure of demand, close main hydrogen commander's throttling valve (JL1), main hydrogen venting hand valve (F5), commander's venting hand valve (F9), open commander's air inlet hand valve (F3), after regulating pressure, solenoid valve (D1) can be operated to open or to close main hydrogen pneumatic valve (QD1) by the main hydrogen of Long-distance Control between observing and controlling, and monitoring hydrogen blowout-back pressure gauge (P1) and main hydrogen low pressure gauge (P3), realize the monitoring to Zhu Qing road air feed,
Use Fen Qing road air feed or main hydrogen, point hydrogen simultaneously air feed time, operation and Zhu Qing road are in like manner;
When carry out low-pressure, low discharge micro-satellite cluster Vacuum Plume effect test time, large volume low-pressure hydrogen-holder is used to carry out hydrogen supply to engine, large volume low-pressure hydrogen-holder is connected to the Fen Qing road of hydrogen gas system by dismantled and assembled joint A, connect Shi Youfenqing road air feed, by other gas source feed when not connecting, open low pressure hydrogen storage tank air inlet hand valve (F7), observe low pressure hydrogen pressure of storage tank table (P7), when registration reaches the pressure of demand, close low pressure hydrogen storage tank air inlet hand valve (F7); If the registration of low pressure hydrogen pressure of storage tank table (P7) is higher than demand pressure, close low pressure hydrogen storage tank air inlet hand valve (F7), open low pressure hydrogen storage tank venting hand valve (F12), observe the pressure that registration reaches demand, close low pressure hydrogen storage tank venting hand valve (F12); After regulating pressure, connect other gas circuit by dismantled and assembled joint B and carry out air feed;
(4) pressure release venting
After test, need to carry out pressure release venting to the hydrogen in pipeline;
Zhu Qing road, the concrete operations of Fen Qing road pressure release venting are: close high pressure hydrogen air inlet hand valve (F1), high pressure nitrogen air inlet hand valve (F2), commander's air inlet hand valve (F3), open main hydrogen venting hand valve (F5), divide hydrogen venting hand valve (F6), high pressure hydrogen venting hand valve (F10), commander's venting hand valve (F9), main hydrogen commander's throttling valve (JL1), divide hydrogen commander's throttling valve (JL2), observe hydrogen blowout-back pressure gauge (P1), main hydrogen commanded pressure table (P2), main hydrogen low pressure gauge (P3), divide hydrogen commanded pressure table (P4) and point hydrogen low pressure gauge (P5), when all Pressure Drops are to 1MPa, time following, close all hand valves and throttling valve.
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| CN109458550A (en) * | 2018-12-27 | 2019-03-12 | 上海舜华新能源系统有限公司 | A kind of hydrogen filling apparatus |
| CN111122069A (en) * | 2019-12-12 | 2020-05-08 | 西安航天发动机有限公司 | Dynamic test system for turbine oxygen pump of engine |
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| CN102561748A (en) * | 2012-02-27 | 2012-07-11 | 北京航空航天大学 | Multifunctional large plant structure for plume satellite test |
| CN102607796A (en) * | 2012-03-07 | 2012-07-25 | 北京航空航天大学 | Large-size dual-heat sink nitrogen blowing system with adjustable temperature and operation method thereof |
| CN102606881A (en) * | 2012-02-17 | 2012-07-25 | 北京航空航天大学 | Clean air distributing device and clean air distribution method for plume testing platform |
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| CN102606881A (en) * | 2012-02-17 | 2012-07-25 | 北京航空航天大学 | Clean air distributing device and clean air distribution method for plume testing platform |
| CN102561748A (en) * | 2012-02-27 | 2012-07-11 | 北京航空航天大学 | Multifunctional large plant structure for plume satellite test |
| CN102607796A (en) * | 2012-03-07 | 2012-07-25 | 北京航空航天大学 | Large-size dual-heat sink nitrogen blowing system with adjustable temperature and operation method thereof |
| CN102680239A (en) * | 2012-05-09 | 2012-09-19 | 北京航空航天大学 | Semi-underground large-size horizontal vacuum container for plume test |
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