CN102606881B - Clean air distributing device and clean air distribution method for plume testing platform - Google Patents
Clean air distributing device and clean air distribution method for plume testing platform Download PDFInfo
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- CN102606881B CN102606881B CN 201210037989 CN201210037989A CN102606881B CN 102606881 B CN102606881 B CN 102606881B CN 201210037989 CN201210037989 CN 201210037989 CN 201210037989 A CN201210037989 A CN 201210037989A CN 102606881 B CN102606881 B CN 102606881B
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Abstract
The invention provides a clean air distributing device and a clean air distributing method for a plume testing platform, which are used for distributing clean air for a vacuum plume effect testing system in testing. The clean air distributing device comprises a clean air generating system and a clean air delivery system, wherein the clean air generating system is used for generating clean air and storing the same and comprises an air compressor, an oil-water separator for purifying air and an air storage tank; the clean air delivery system is used for filtering, pressure reduction and delivery of the air and comprises a main control pipeline and two auxiliary control pipelines. The clean air distributing method includes: air compressed by the air compressor is purified by the oil water separator and stored in the air storage tank, then is delivered to the main control pipeline, is delivered to the two auxiliary control pipelines under control of the main control pipeline, and is finally delivered to the vacuum plume effect testing system in testing. The clean air distributing device and the clean air distributing method for the plume testing platform are capable of meeting various testing requirements of satellite thermal vacuum testing and plume tests of electric propulsion motors and chemical propulsion motors, and can stably and flexibly supply clean air for testing.
Description
Technical field
The invention belongs to the vacuum science technical field, be specifically related to required pure air air distributing device and air distributing method thereof in satellite thermal vacuum test and electric propulsion, the chemical propulsion engine plume test.
Background technology
Beijing Institute of Aeronautics " Vacuum Plume effect test system " (multi-functional plume testing platform) is the multifunctional test experiment device, is mainly used in space flight appearance, control thruster plume experimental study, takes into account simultaneously the thermal vacuum tests such as satellite.Because the test that the plume testing platform can carry out is of a great variety, need be furnished with air-source in the test, and the air pressure difference that different purposes tests are required, this causes its supporting pure air air distributing device pipeline complicated, needs a large amount of components and parts that the air pressure in the pipeline is controlled.In addition, more convenient, faster for operating personnel, more safely operate the pure air air distributing device, need system pipeline centralized layout.
Summary of the invention
The present invention is directed to the distribution problem of the required pure air of satellite thermal vacuum test and electric propulsion, chemical propulsion transmitter plume testing, proposed a kind of plume testing platform pure air air distributing device and air distributing method.
A kind of plume testing platform pure air air distributing device of the present invention comprises pure air generation system and pure air induction system.
The pure air generation system comprises for the manufacture of pure air and with its storage: air compressor, oil-water separator, air storage tank entrance hand valve, air storage tank, remote pressure gauge, on-the-spot tensimeter and air storage tank blowdown hand valve; Air compressor connects oil-water separator, air storage tank entrance hand valve and air storage tank successively by pipeline, the top of air storage tank is connected with remote pressure gauge and on-the-spot tensimeter by pipeline, and the bottom of air storage tank is connected with air storage tank blowdown hand valve by pipeline; Described air compressor is used for pressurized air, and discharge pressure is 1.2Mpa; Described air storage tank is used for storing the 1.2MPa air after the compressed purification.
The pure air induction system is used for air filtration, decompression and dispensing, comprising: the multiple pressure-controlled pipeline of master control pipeline, first via pipe valve pilot piping and the second road vacuum chamber.The master control pipeline is composed in series by pipeline successively by master control pipeline hand valve, master control pipeline gas filtrator, master control pipeline discharge and master control pipeline safety valve; The left end of described master control pipeline hand valve connects the right-hand member outlet of air storage tank by pipeline; It is the pure air of 1.2MPa that described master control pipeline discharge provides pressure, and its right-hand member outlet connects first via pipe valve pilot piping and the multiple pressure-controlled pipeline of the second road vacuum chamber.
The multiple pressure-controlled pipeline of first via pipe valve pilot piping and the second road vacuum chamber all comprises: a keyholed back plate road air inlet hand valve, a keyholed back plate road gas filter, a keyholed back plate road reduction valve, a keyholed back plate road venting hand valve, a keyholed back plate great distance stroke pressure table, the on-the-spot tensimeter in a keyholed back plate road, a keyholed back plate road safety valve and the keyholed back plate road hand valve of giving vent to anger; The left end that props up keyholed back plate road air inlet hand valve connects the right-hand member outlet of master control pipeline discharge by pipeline, the right-hand member of keyholed back plate road air inlet hand valve connects a keyholed back plate road gas filter, a keyholed back plate road reduction valve and the keyholed back plate road hand valve of giving vent to anger successively by pipeline, and the pipeline that the hand valve of giving vent to anger on a keyholed back plate road reduction valve and a keyholed back plate road is connected is provided with a keyholed back plate road venting hand valve, a keyholed back plate great distance stroke pressure table, a keyholed back plate road scene tensimeter and props up keyholed back plate road safety valve; Described keyholed back plate road venting hand valve is used for being communicated with to avoid line pressure too high pure air induction system pipeline and atmosphere after off-test; Described the on-the-spot tensimeter of keyholed back plate great distance stroke pressure table and a keyholed back plate road is used for measuring through post-decompression air pressure, guarantees that pressure is in tolerance zone; First via pipe valve pilot piping comprises two keyholed back plate roads hand valve of giving vent to anger, and two keyholed back plate roads hand valve of giving vent to anger is connected to black vacuum system and high vacuum system by pipeline respectively, is used to the operated pneumatic valve air feed in black vacuum and the high vacuum system; A keyholed back plate road of the multiple pressure-controlled pipeline of the second road vacuum chamber hand valve of giving vent to anger is connected to vacuum chamber by pipeline, is used for the air mass flow that control enters vacuum chamber.
A kind of air distributing method of using the plume testing platform pure air of above-mentioned pure air air distributing device comprises the steps:
Step 1 is opened air storage tank entrance hand valve;
Step 2 starts air compressor, behind air compressing, through the oil-water separator oil removing, except water treatment, delivers to air storage tank;
Step 3 is observed remote pressure gauge and on-the-spot tensimeter, when treating that the air storage tank internal pressure reaches 1.2MPa, stops air compressor;
Step 4 is opened master control pipeline hand valve, carries pure air by air storage tank to master control pipeline discharge;
Step 5, open a keyholed back plate road air inlet hand valve and a keyholed back plate road venting hand valve, regulate a keyholed back plate road reduction valve, make through the air pressure behind the keyholed back plate road reduction valve to needed pressure, the top hole pressure of described keyholed back plate road reduction valve can be regulated in 0.4～0.8MPa scope;
Step 6 after mixing up, is closed a keyholed back plate road venting hand valve;
Step 7 is opened the keyholed back plate road hand valve of giving vent to anger and is realized the air feed on a keyholed back plate road.
The present invention's beneficial effect compared with prior art is:
(1) can satisfy simultaneously satellite thermal vacuum test and electric propulsion, the multiple test demand of chemical propulsion engine plume test;
(2) test required air source of the gas is provided by air compressor, and is convenient and swift;
(3) be furnished with oil-water separator, can effectively remove dirt, water, mist of oil in the pressurized air;
The air that (4) can provide invariablenes pressure of liquid for, supply gas pressure 0.4～0.8MPa is adjustable;
(5) each porch, keyholed back plate road is provided with filtrator, can filtration of particulate matters impurity, and prevent from being mixed with in the air granule foreign blocking pipeline and damage terminal device;
(6) each keyholed back plate road pressure regulate and air feed flexible, but can work independently, also multi-pipeline is worked simultaneously, be independent of each other;
(7) two keyholed back plate road centralized layouts are indoor, and the indoor centralized operation control of convenient operation personnel is not subjected to seasonal effect.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of pure air air distributing device provided by the invention;
Fig. 2 is the schematic flow sheet of pure air air distributing method of the present invention;
Wherein:
100-pure air generation system; 200-pure air induction system; The 101-air compressor; The 102-oil-water separator;
103-air storage tank entrance hand valve; The 104-air storage tank; The 105-remote pressure gauge; The on-the-spot tensimeter of 106-;
107-air storage tank blowdown hand valve; 201-master control pipeline hand valve; 202-master control pipeline gas filtrator;
203-master control pipeline discharge; 204-master control pipeline safety valve; First keyholed back plate road air inlet of 301-hand valve;
First keyholed back plate road of 302-gas filter; First keyholed back plate road of 303-reduction valve; First keyholed back plate road venting of 304-hand valve;
First keyholed back plate great distance of 305-stroke pressure table; The on-the-spot tensimeter in first keyholed back plate road of 306-; First keyholed back plate road of 307-safety valve;
The 308-hand valve of giving vent to anger on first keyholed back plate road; The 309-hand valve of giving vent to anger on second keyholed back plate road; Second keyholed back plate road air inlet of 401-hand valve;
Second keyholed back plate road of 402-gas filter; Second keyholed back plate road of 403-reduction valve; Second keyholed back plate road venting of 404-hand valve;
Second keyholed back plate great distance of 405-stroke pressure table; The on-the-spot tensimeter in second keyholed back plate road of 406-; Second keyholed back plate road of 407-safety valve;
The 408-hand valve of giving vent to anger on the 3rd keyholed back plate road.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
A kind of plume testing platform pure air air distributing device of the present invention mainly is divided into two parts, as shown in Figure 1, is respectively pure air generation system 100 and pure air induction system 200.Pure air generation system 100 is mainly for the manufacture of pure air and with its storage, and required pure air is formed by the air compressor compression; Pure air induction system 200 is mainly used in air filtration, decompression and dispensing.
As shown in Figure 1, pure air generation system 100 is comprised of air compressor 101, oil-water separator 102, air storage tank entrance hand valve 103, air storage tank 104, remote pressure gauge 105, on-the-spot tensimeter 106 and air storage tank blowdown hand valve 107.Air compressor 101 connects oil-water separator 102, air storage tank entrance hand valve 103 in turn by pipeline, and finally is connected to the import of the left end of air storage tank 104.Air compressor 101 is used for pressurized air, air capacity 0.36m
3/ min, discharge pressure is 1.2Mpa.Oil-water separator 102 is used for removing dirt, water, the mist of oil of pressurized air, purifies air.Air storage tank entrance hand valve 103 is used for the gas flow that control enters air storage tank 104.Air storage tank 104 is used for storing the 1.2MPa air after the compressed purification, and for pure air induction system 200 provides source of the gas, 2 cubic metres of volumes can continue air feed for a long time.Remote pressure gauge 105, on-the-spot tensimeter 106 are installed in the top of air storage tank 104, are used for measuring the air pressure in the air storage tank 104.Air storage tank blowdown hand valve 107 is installed in the bottom of air storage tank 104, is used for deaeration gas-holder 104 interior residual steam.
In order to satisfy satellite thermal vacuum test and electric propulsion, chemical propulsion engine plume test demand, must select air capacity 0.36m
3The air compressor 101 of/min, discharge pressure 1.2Mpa, and must supporting volume 2 cubic metres air storage tank 104, sufficient to guarantee air feed, avoid simultaneously air compressor 101 to damage because of frequent starting.
Pure air induction system 200 mainly is comprised of three parts, be respectively a master control pipeline and two keyholed back plate roads, the master control pipeline is used for to two keyholed back plate road air feed, and two keyholed back plate roads comprise: first via pipe valve pilot piping, the multiple pressure-controlled pipeline of the second road vacuum chamber.Two keyholed back plate road centralized layouts are indoor, and the indoor centralized operation control of convenient operation personnel is not subjected to seasonal effect.
The master control pipeline is comprised of master control pipeline hand valve 201, master control pipeline gas filtrator 202, master control pipeline discharge 203, master control pipeline safety valve 204, utilizes pipeline to connect in turn from left to right.The outlet of air storage tank 104 right-hand members connects master control pipeline hand valve 201, master control pipeline gas filtrator 202 successively by pipeline, and finally is communicated with the left end import of master control pipeline discharge 203, realizes to master control pipeline discharge 203 air feed.Master control pipeline hand valve 201 is used for the gas flow that control enters master control pipeline discharge 203.Master control pipeline gas filtrator 202 is used for filtered air, guarantees that air is pure, avoids dregs to enter pipeline, results in blockage.Master control pipeline discharge 203 profiles are cylindrical shape, closed at both ends up and down, and internal diameter is got 60mm, wall thickness 3mm; The outlet of the right-hand member of master control pipeline discharge 203 is connected with respectively two keyholed back plate roads, and can be two keyholed back plate roads, pressure is provided is the pure air of 1.2MPa.Master control pipeline safety valve 204 is installed in master control pipeline discharge 203 right-hand members, is used for preventing the too high venting usefulness of this section master control line pressure.
The first via is propped up the keyholed back plate road, and namely first via pipe valve pilot piping utilizes pipeline to connect to form in turn from left to right by first keyholed back plate road air inlet hand valve 301, first keyholed back plate road gas filter 302, first keyholed back plate road reduction valve 303, first keyholed back plate road venting hand valve 304, first keyholed back plate great distance stroke pressure table 305, first on-the-spot tensimeter 306 in keyholed back plate road, first keyholed back plate road safety valve 307, first keyholed back plate road hand valve 308 and second the keyholed back plate road hand valve 309 of giving vent to anger of giving vent to anger.First keyholed back plate road air inlet hand valve 301 is used for the air inflow that control enters first via pipe valve pilot piping.First keyholed back plate road gas filter 302 is used for filtered air, guarantees that air is pure, avoids dregs to enter pipeline, results in blockage.First keyholed back plate road reduction valve 303 is used for the air step-down, decompressor intake pressure 1.2MPa, and top hole pressure 0.4～0.8MPa is adjustable.Be used for system pipeline and atmosphere are communicated with after 304 off-tests of first keyholed back plate road venting hand valve, avoid the system pipeline hypertonia.First keyholed back plate great distance stroke pressure table 305 and first on-the-spot tensimeter 306 in keyholed back plate road are used for measuring through post-decompression air pressure, guarantee that pressure is in tolerance zone.First keyholed back plate road safety valve 307 is used for preventing the too high venting usefulness of this section line pressure.The give vent to anger right side of hand valve 309 of hand valve 308 and second keyholed back plate road of giving vent to anger, first keyholed back plate road is connected to corresponding operated pneumatic valve by pipeline respectively, be used for the air mass flow that control enters operated pneumatic valve, described first keyholed back plate road hand valve 308 of giving vent to anger is connected to the black vacuum system by pipeline, be used to all operated pneumatic valves in the black vacuum system that pure air is provided, give vent to anger hand valve 309 of second keyholed back plate road is connected to high vacuum system by pipeline, is used to all operated pneumatic valves in the high vacuum system that pure air is provided.
The second the tunnel props up the keyholed back plate road, and namely the multiple pressure-controlled pipeline of the second road vacuum chamber utilizes pipeline to connect to form in turn from left to right by second keyholed back plate road air inlet hand valve 401, second keyholed back plate road gas filter 402, second keyholed back plate road reduction valve 403, second keyholed back plate road venting hand valve 404, second keyholed back plate great distance stroke pressure table 405, second on-the-spot tensimeter 406 in keyholed back plate road, second keyholed back plate road safety valve 407 and the 3rd the keyholed back plate road hand valve 408 of giving vent to anger.Second keyholed back plate road air inlet hand valve 401 is used for the air inflow that control enters the multiple pressure-controlled pipeline of the second road vacuum chamber.Second keyholed back plate road gas filter 402 is used for filtered air, guarantees that air is pure, avoids dregs to enter pipeline, results in blockage.Second keyholed back plate road reduction valve 403 is used for the air step-down, decompressor intake pressure 1.2MPa, and top hole pressure 0.4～0.8MPa is adjustable.Be used for system pipeline and atmosphere are communicated with after 404 off-tests of second keyholed back plate road venting hand valve, avoid the system pipeline hypertonia.Second keyholed back plate great distance stroke pressure table 405 and second on-the-spot tensimeter 406 in keyholed back plate road are used for measuring through post-decompression air pressure, guarantee that pressure is in tolerance zone.Second keyholed back plate road safety valve 407 is used for preventing that the second the tunnel props up the hypertonia venting usefulness on keyholed back plate road.The give vent to anger right side of hand valve 408, the 3rd keyholed back plate road is connected to vacuum chamber by pipeline, is used for the air mass flow that control enters vacuum chamber.
Smooth and easy for guarantee that air flows in pipeline, avoid line clogging, guarantee simultaneously the pipeline safe handling, the bore of the connecting line of master control pipeline is got 15mm, and thickness of pipe is got 3mm; Prop up the bore of the connecting line on keyholed back plate road and get 6mm, thickness of pipe is got 1mm.The connecting line of whole air cleaning device and all parts all adopt 304 stainless steel manufacturings, avoid each parts can't use because getting rusty.
As shown in Figure 2, adopting pure air air distributing device of the present invention is the method that the plume experiment porch carries out the pure air dispensing, specifically comprises following step:
Step 1 is opened air storage tank entrance hand valve 103.
Step 2 starts air compressor 101, and air compressing is carried out oil removing, delivers to air storage tank 104 except after the water treatment by oil-water separator 102.
Step 3 is observed remote pressure gauge 105, on-the-spot tensimeter 106, when treating that air storage tank 104 internal pressures reach 1.2MPa, stops air compressor 101.
Step 4 is opened master control pipeline hand valve 201, is carried pure air to master control pipeline discharge 203.
Step 5, two keyholed back plate roads are all in work in the embodiment of the invention.Open first keyholed back plate road air inlet hand valve 301, second keyholed back plate road air inlet hand valve 401, first keyholed back plate road venting hand valve 304 and second keyholed back plate road venting hand valve 404, and regulate first keyholed back plate road reduction valve 303 on each keyholed back plate road, second keyholed back plate road reduction valve 403, make the air pressure through a keyholed back plate road reduction valve reach the required pressure in each keyholed back plate road, the top hole pressure of first keyholed back plate road reduction valve 303 and second keyholed back plate road reduction valve 403 is adjustable at 0.4～0.8MPa.
By controlling the switch of first keyholed back plate road air inlet hand valve 301 and second keyholed back plate road air inlet hand valve 401, control the working condition on two keyholed back plate roads, namely, when do not work in certain keyholed back plate road, closing a keyholed back plate road air inlet hand valve corresponding to this keyholed back plate road just can, in following step 6 and the step 7, close on this keyholed back plate road a corresponding keyholed back plate road venting hand valve, open the corresponding keyholed back plate road hand valve of giving vent to anger and get final product.
Step 6 after mixing up, is closed first keyholed back plate road venting hand valve 304 and second keyholed back plate road venting hand valve 404.
Step 7 is opened first keyholed back plate road hand valve 308, second keyholed back plate road hand valve 309 and the 3rd keyholed back plate road hand valve 408 of giving vent to anger of giving vent to anger of giving vent to anger, and realizes the air feed on first, second keyholed back plate road.
By above-mentioned steps, realized supplying for Vacuum Plume effect test system stability, neatly pure air.
Claims (7)
1. a plume testing platform pure air air distributing device is characterized in that this device comprises pure air generation system and pure air induction system;
The pure air generation system comprises for the manufacture of pure air and with its storage: air compressor, oil-water separator, air storage tank entrance hand valve, air storage tank, remote pressure gauge, on-the-spot tensimeter and air storage tank blowdown hand valve; Air compressor connects oil-water separator, air storage tank entrance hand valve and air storage tank successively by pipeline, the top of air storage tank is connected with remote pressure gauge and on-the-spot tensimeter by pipeline, and the bottom of air storage tank is connected with air storage tank blowdown hand valve by pipeline; Described air compressor is used for pressurized air, and air capacity is 0.36m
3/ min, discharge pressure is 1.2Mpa; Described air storage tank volume is 2 cubic metres, is used for storing the 1.2MPa air after the compressed purification;
The pure air induction system is used for air filtration, decompression and dispensing, comprising: the multiple pressure-controlled pipeline of master control pipeline, first via pipe valve pilot piping and the second road vacuum chamber;
The master control pipeline is composed in series by pipeline successively by master control pipeline hand valve, master control pipeline gas filtrator, master control pipeline discharge and master control pipeline safety valve; The left end of described master control pipeline hand valve connects the right-hand member outlet of air storage tank by pipeline; It is the pure air of 1.2MPa that described master control pipeline discharge provides pressure, and its right-hand member outlet connects first via pipe valve pilot piping and the multiple pressure-controlled pipeline of the second road vacuum chamber;
The multiple pressure-controlled pipeline of first via pipe valve pilot piping and the second road vacuum chamber all comprises: a keyholed back plate road air inlet hand valve, a keyholed back plate road gas filter, a keyholed back plate road reduction valve, a keyholed back plate road venting hand valve, a keyholed back plate great distance stroke pressure table, the on-the-spot tensimeter in a keyholed back plate road, a keyholed back plate road safety valve and the keyholed back plate road hand valve of giving vent to anger; The left end that props up keyholed back plate road air inlet hand valve connects the right-hand member outlet of master control pipeline discharge by pipeline, the right-hand member of keyholed back plate road air inlet hand valve connects a keyholed back plate road gas filter, a keyholed back plate road reduction valve and the keyholed back plate road hand valve of giving vent to anger successively by pipeline, and the pipeline that the hand valve of giving vent to anger on a keyholed back plate road reduction valve and a keyholed back plate road is connected is provided with a keyholed back plate road venting hand valve, a keyholed back plate great distance stroke pressure table, a keyholed back plate road scene tensimeter and props up keyholed back plate road safety valve; Described keyholed back plate road venting hand valve is used for being communicated with to avoid line pressure too high pure air induction system pipeline and atmosphere after off-test; Described the on-the-spot tensimeter of keyholed back plate great distance stroke pressure table and a keyholed back plate road is used for measuring through post-decompression air pressure, guarantees that pressure is in tolerance zone; First via pipe valve pilot piping comprises two keyholed back plate roads hand valve of giving vent to anger, and two keyholed back plate roads hand valve of giving vent to anger is connected to black vacuum system and high vacuum system by pipeline respectively, is used to the operated pneumatic valve air feed in black vacuum and the high vacuum system; A keyholed back plate road of the multiple pressure-controlled pipeline of the second road vacuum chamber hand valve of giving vent to anger is connected to vacuum chamber by pipeline, is used for the air mass flow that control enters vacuum chamber.
2. a kind of plume testing platform pure air air distributing device according to claim 1 is characterized in that, described master control pipeline discharge profile is cylindrical shape, closed at both ends up and down, and a cylinder internal diameter is 60mm, wall thickness 3mm.
3. a kind of plume testing platform pure air air distributing device according to claim 1 is characterized in that, described keyholed back plate road reduction valve is used for the air step-down, and intake pressure is 1.2MPa, and top hole pressure is in 0.4 ~ 0.8MPa scope.
4. a kind of plume testing platform pure air air distributing device according to claim 1 is characterized in that, described master control pipeline, and the bore of the connecting line in it is 15mm, thickness of pipe 3mm; The multiple pressure-controlled pipeline of described first via pipe valve pilot piping and the second road vacuum chamber, the bore of the connecting line in it is 6mm, thickness of pipe 1mm.
5. a kind of plume testing platform pure air air distributing device according to claim 1 is characterized in that, the multiple pressure-controlled pipeline centralized layout of described first via pipe valve pilot piping and the second road vacuum chamber is indoor.
6. a kind of plume testing platform pure air air distributing device according to claim 1 is characterized in that, described oil-water separator is configured on the air compressor pipeline afterwards, is used for removing dirt, water and the mist of oil of pressurized air, purifies air.
7. based on a kind of plume testing platform pure air air distributing method of pure air air distributing device claimed in claim 1, it is characterized in that, comprise the steps:
Step 1 is opened air storage tank entrance hand valve;
Step 2 starts air compressor, behind air compressing, through the oil-water separator oil removing, except water treatment, delivers to air storage tank;
Step 3 is observed remote pressure gauge and on-the-spot tensimeter, when treating that the air storage tank internal pressure reaches 1.2MPa, stops air compressor;
Step 4 is opened master control pipeline hand valve, carries pure air by air storage tank to master control pipeline discharge;
Step 5, open a keyholed back plate road air inlet hand valve and a keyholed back plate road venting hand valve, regulate a keyholed back plate road reduction valve, make through the air pressure behind the keyholed back plate road reduction valve to needed pressure, the top hole pressure of described keyholed back plate road reduction valve can be regulated in 0.4 ~ 0.8MPa scope;
Step 6 after mixing up, is closed a keyholed back plate road venting hand valve;
Step 7 is opened the keyholed back plate road hand valve of giving vent to anger and is realized the air feed on a keyholed back plate road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210037989 CN102606881B (en) | 2012-02-17 | 2012-02-17 | Clean air distributing device and clean air distribution method for plume testing platform |
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| CN 201210037989 CN102606881B (en) | 2012-02-17 | 2012-02-17 | Clean air distributing device and clean air distribution method for plume testing platform |
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| CN102606881B true CN102606881B (en) | 2013-04-24 |
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| CN103499020B (en) * | 2013-09-27 | 2015-10-07 | 北京航空航天大学 | Vacuum Plume effect experiment system hydrogen gas system |
| CN105985004A (en) * | 2015-12-21 | 2016-10-05 | 安徽德力日用玻璃股份有限公司 | Kiln ridge cooling mechanism of kiln melting tank and connecting structure of kiln ridge cooling mechanism |
| CN108870078A (en) * | 2018-08-22 | 2018-11-23 | 江苏核电有限公司 | A kind of generator hydrogen dryer pneumatic operated valve control compressed air source unit and its control method |
| CN111426484A (en) * | 2020-05-06 | 2020-07-17 | 湖南汉能科技有限公司 | Air source system of test bed of aero-engine combustion chamber |
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| CN2440150Y (en) * | 2000-09-07 | 2001-07-25 | 攀枝花新钢钒股份有限公司氧气厂 | Oxygen supply device capable of realizing multistage partial pressure operation |
| RU2223533C1 (en) * | 2002-10-10 | 2004-02-10 | Тульский государственный университет | Gas main pressure control device |
| CN101004241A (en) * | 2007-01-15 | 2007-07-25 | 同济大学 | Air distributing device |
| CN101482223A (en) * | 2008-05-28 | 2009-07-15 | 上海启元空分技术发展有限公司 | Air distributing device and method |
| CN101539484A (en) * | 2009-04-24 | 2009-09-23 | 北京航空航天大学 | Electric propulsion test platform air distributing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2005018034A1 (en) * | 2003-08-19 | 2005-02-24 | Hydrogenics Corporation | Method and system for distributing hydrogen |
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2012
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2440150Y (en) * | 2000-09-07 | 2001-07-25 | 攀枝花新钢钒股份有限公司氧气厂 | Oxygen supply device capable of realizing multistage partial pressure operation |
| RU2223533C1 (en) * | 2002-10-10 | 2004-02-10 | Тульский государственный университет | Gas main pressure control device |
| CN101004241A (en) * | 2007-01-15 | 2007-07-25 | 同济大学 | Air distributing device |
| CN101482223A (en) * | 2008-05-28 | 2009-07-15 | 上海启元空分技术发展有限公司 | Air distributing device and method |
| CN101539484A (en) * | 2009-04-24 | 2009-09-23 | 北京航空航天大学 | Electric propulsion test platform air distributing device |
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