CN109459255B - Multipurpose pipeline supply system with replaceable cathode gas source and replaceable flowmeter - Google Patents
Multipurpose pipeline supply system with replaceable cathode gas source and replaceable flowmeter Download PDFInfo
- Publication number
- CN109459255B CN109459255B CN201811304971.XA CN201811304971A CN109459255B CN 109459255 B CN109459255 B CN 109459255B CN 201811304971 A CN201811304971 A CN 201811304971A CN 109459255 B CN109459255 B CN 109459255B
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- low
- mass flow
- flow meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
The patent is based on the requirements of an electric propulsion ground experiment task, and a set of propellant pipeline supply system which is used for an electric propulsion Hall and an ion thruster and can replace a cathode gas source and a mass flow meter is designed. The supply system mainly comprises a gas source, a pressure regulator, a mass flow regulator and a pipeline insulator. In order to avoid experiment termination in the process of replacing the air source, a scheme of backing up a mass flow regulating system is adopted. The mass flow regulating part of the multi-path backup is mainly used for carrying out calibration and calibration on the mass flow meter again and replacing the mass flow meter under the condition of not influencing the experimental process in the test process. The low-pressure hand valves are respectively added at the front and the rear of the flowmeter, so that the gas state in the pipeline and the vacuum chamber is ensured during replacement. This patent can satisfy among the electric propulsion experimentation to the requirement of propellant pipeline feed system in aspects such as flow, pressure and reliability, simultaneously, can enough provide the propellant for the experiment of hall thruster, the experiment that again can the ion thruster carries out relevant gas line and supplies with.
Description
Technical Field
The invention belongs to the technical field of electric propulsion, and relates to a multipurpose pipeline supply system with a replaceable cathode gas source and a replaceable flowmeter.
Background
The electric propulsion mainly converts electric energy into kinetic energy of propellant, and obtains thrust by using the reaction force of working medium injection. Compared with the traditional chemical propulsion, the advanced propulsion method has the advantages of high specific impulse, high control precision, long service life and the like. After development for up to sixty years, the international electric propulsion technology is improved.
Meanwhile, with the diversified development of domestic space mission requirements, the ground test of electric propulsion becomes gradually complicated. Besides the design of the thruster, a propellant supply pipeline system also becomes a vital part in an electric propulsion ground test, and the system needs to control various physical parameters such as flow, pressure, state and the like of the propellant, and each parameter can generate influence which is difficult to estimate on a performance test experiment of the thruster.
At present, the related technology in the field of electric propulsion in China is gradually developed, various electric propulsion ground test facilities and related supply pipeline systems are provided, but with the requirement of a thruster on the accuracy of related physical property parameters of the propellant, the existing supply system cannot meet the requirement of performance tests of various thrusters, and therefore, a set of corresponding propellant supply system is designed based on the requirement.
Disclosure of Invention
The multipurpose pipeline supply system with the replaceable cathode gas source and the replaceable flow meter is mainly used for pipeline supply of Hall thrusters and ion thrusters for ground tests, and mainly meets the following functions:
(1) the reliable and stable gas propellant with adjustable pressure and flow can be provided for the thruster in an electric propulsion experiment.
(2) In order to ensure that the flowmeter can reach the required precision all the time, a standby flowmeter is arranged on each branch provided with the flowmeter, so that the calibrated flowmeter can be replaced on the premise of not influencing the experiment.
(3) The gas sources with different gas propellant purities can be replaced at any time under the condition of not suspending the experiment along with the change of the experiment requirement in the test process, so that the test on the performance of the thruster in the experiment is met.
(4) Meanwhile, in order to avoid the damage to corresponding components in the pipeline supply system due to the electrification of the cabin body in the experimental process. Therefore, the insulating joint is designed at the connecting part of the whole set of pipelines and the cabin body so as to protect pipeline devices.
(5) Compared with other pipelines, in order to ensure that the propellant supply of the whole system is more stable and is basically not influenced by the pressure fluctuation of the propellant, a buffer tank is added at the front section of the pipeline.
The relevant components and parts of this patent are as follows: the casing pipeline supply system mainly comprises a high-pressure xenon gas cylinder, a pressure gauge, a pressure reducing valve, a buffer tank, a low-pressure hand valve, a mass flow meter, a filter, an insulating joint, a stainless steel cleaning pipe for connecting all components, a VCR joint and the like. The vacuum chamber, the thruster, the thrust frame and the like do not belong to the invention content of the patent, and finished product pipelines purchased by related components according to corresponding design requirements belong to self design and processing.
The specific technical scheme of the invention is as follows:
a multi-purpose inline supply system with replaceable cathode gas source and flow meter, comprising:
the device comprises a high-pressure xenon gas cylinder A-1, a high-pressure xenon gas cylinder B-2, a first pre-valve pressure gauge 3, a second pre-valve pressure gauge 4, a first pressure reducing valve 5, a second pressure reducing valve 6, a first post-valve pressure gauge 7, a second post-valve pressure gauge 8, a first buffer tank 9, a second buffer tank 10, a gas circuit control hand valve 11, a low-pressure hand valve, mass flow meters 17, 19 and 21, standby mass flow meters 18 and 20, filters 27, 28 and 29 and insulating joints 30, 31 and 32;
the gas outlet of the high-pressure xenon gas cylinder A-1 is sequentially connected with a first pressure reducing valve 5 and a first buffer tank 9 in series, a first pressure gauge 3 before the first pressure reducing valve 5 is arranged, a first pressure gauge 7 after the first pressure reducing valve 5 is arranged, 3 branches are divided from the other end of the first buffer tank 9, and each branch is sequentially connected with a first low- pressure hand valve 12, 14 and 16, a mass flow meter 17, 19 and 21, a second low- pressure hand valve 22, 24 and 26, a filter 27, 28 and 29, an insulating joint 30, 31 and 32 in series, and the other end of each of the 3 insulating joints 30, 31 and 32 is connected with a cabin flange of a vacuum cabin; one of the 3 branches is an anode gas circuit, and the other branch is a cathode gas circuit;
the anode gas path is provided with a standby mass flowmeter 18, the front and the back of the standby mass flowmeter 18 are both connected in series with low- pressure hand valves 15 and 25, the low-pressure hand valve 15 in front of the standby mass flowmeter 18 is connected between the first buffer tank 9 and the first low-pressure hand valve 16 of the anode gas path, and the low-pressure hand valve 25 behind the standby mass flowmeter 18 is connected between the second low-pressure hand valve 26 of the anode gas path and the filter 27;
the first cathode gas path is provided with a standby mass flowmeter 20, the front and the back of the standby mass flowmeter 20 are both connected in series with low- pressure hand valves 13 and 23, the low-pressure hand valve 13 in front of the standby mass flowmeter 20 of the first cathode gas path is connected between the first buffer tank 9 and the first low-pressure hand valve 14 of the first cathode gas path, and the low-pressure hand valve 23 behind the standby mass flowmeter 20 is connected between the second low-pressure hand valve 24 of the first cathode gas path and the filter 28;
the gas outlet of the high-pressure xenon gas cylinder B-2 is sequentially connected in series with a second pressure reducing valve 4, a second buffer tank 10 and a gas circuit control hand valve 11, a second pre-valve pressure gauge 4 is arranged in front of the second pressure reducing valve 4, a second post-valve pressure gauge 8 is arranged behind the second pressure reducing valve 4, and 3 branches are divided from the other end of the gas circuit control hand valve 11 and are respectively connected in front of a mass flowmeter 19 of a first cathode gas circuit, a mass flowmeter 21 of a second cathode gas circuit and a standby mass flowmeter 20 of the cathode gas circuit;
the high-pressure xenon gas cylinder A-1 is connected with a stainless steel pipeline through an 1/4VCR connector, the first pressure reducing valve 5, the second pressure reducing valve 6 and the stainless steel pipeline are connected through a 1/4VCR connector, and adjacent components are connected with each other through a pipeline and a 1/4VCR connector.
Preferably, the ranges of the first and second pre-valve pressure gauges 3 and 4 are 0-3000 psi; the inlet ranges of the first reducing valve 5 and the second reducing valve 6 are 0-10 MPa, and the outlet ranges are 0-0.6 MPa; the range of the pressure gauge 7 and 8 behind the first valve and the second valve is-0.1-1.1 MPa.
The main advantages of this patent have:
1. the gas circuit of the system is designed to be a replaceable cathode gas source ground gas circuit, and the experimental design of different gas propellants can be met, such as the experiment of different kinds of gas with different purities or the experiment of different kinds of gas with different purities. On the other hand, the engine does not need to be shut down in the process of replacing the cathode gas source, and the normal work of the thruster is not influenced.
2. The mass flow control parts of the propellant of the anode pipeline and the propellant of the cathode pipeline are backed up in the pipeline supply system, so that the normal work of the thruster is not influenced when the flowmeter is replaced and calibrated in the experimental process.
3. In order to ensure that the pressure fluctuation of the air source does not influence the supply of the whole set of pipelines basically in the pipeline supply process, a buffer tank is added at the upstream part of the pipelines, so that the whole air flow is more stable.
4. In order to protect each component of the pipeline system, especially a relatively precise mass flowmeter, from being damaged by voltage and current in the experimental process, an insulating joint is added at the position connected with the cabin body at the downstream of the system. In addition, a filter is added at the upstream of the insulated joint, so that the purity of the gas propellant entering the thruster is further improved.
Drawings
FIG. 1 is a schematic diagram of a line feed system.
The xenon cylinders 1, 2 serve as propellants for the entire feed system.
The pressure gauges 3/4, 7/8 are respectively used for monitoring the pressure change in the pipeline before and after the pressure reducing valve in real time.
The pressure reducing valves 5, 6 primarily regulate the high pressure propellant gas provided by the gas source to within the pressure regime required for proper operation of the mass flow meter while maintaining a relatively constant pressure throughout the circuit.
The buffer tanks 9 and 10 are mainly used for further buffering pressure fluctuation in the system, so that the whole system is in a more stable working state.
The low-pressure hand valves 11-16 and 22-26 are mainly used for controlling the on-off of the branch of the flow meter, and meanwhile, the hand valves in front of and behind the mass flow meter can seal the pipeline when the hand valves are calibrated and disassembled, so that the cleanliness of the gas environment in the vacuum chamber and the pipeline and the cleanliness of the pipeline are guaranteed.
The mass flow meters 17-21 are used for controlling the flow rate of gas flow in each branch pipeline and providing accurate, stable and adjustable propellant for the thruster according to designed experimental requirements.
The filters 27-29 are used for filtering impurities in the pipeline so as to ensure the purity of the propellant in the pipeline, and on the other hand, the filters are used for preventing the thruster from being damaged by the impurities.
The insulated joints 30-32 are used for isolating the vacuum chamber from the whole pipeline supply system and preventing the mass flow meter on the pipeline system from being damaged due to electric conduction.
The pipeline joints are made of English 1/4VCR joints, so that the pipeline joint is convenient to disassemble and assemble and reliable in sealing. Meanwhile, the pipeline enters the vacuum chamber through the chamber flange, and the vacuum chamber can provide a high-vacuum simulation environment for the stable work of the thruster.
Detailed Description
The experimental operation process comprises the following steps:
1. and a gas source part:
the gas source part of the pipeline consists of a gas source-A and a gas source-B: the device mainly comprises a high-pressure xenon gas cylinder A, B, a pressure gauge 3 before a first valve, a pressure gauge 4 before a second valve, a first pressure reducing valve 5, a second pressure reducing valve 6, a pressure gauge 7 after the first valve, a pressure gauge 8 after the second valve, a first buffer tank 9, a second buffer tank 10 and a gas circuit control hand valve 11. For example, a gas source-A, a high-pressure xenon gas cylinder-A is connected with a designed stainless steel pipeline through an 1/4VCR connector, and a first pre-valve pressure gauge 3 and a second pre-valve pressure gauge 4 are connected with the stainless steel pipeline through a 1/4VCR connector.
Under normal conditions, gas supplies of a gas source-A and a gas source-B are mutually independent, the gas source-A supplies propellant to the anode gas path, the first cathode gas path and the second cathode gas path, and the gas source-B only supplies propellant to the first cathode gas path and the second cathode gas path independently and does not supply propellant gas to the anode gas path. The process of switching cathode gas source-A and gas source-B is as follows:
(1) confirming that the cathode gas source needs to be replaced: in the experimental process, according to the experiment demand, the cathode needs to be changed into xenon with higher purity, or, in order to measure the performance of different propellants, the cathode propellant type needs to be changed, and the air supply is changed at this moment.
(2) And (3) replacing the gas cylinder:
a. first, the first low-pressure hand valve 12, the low-pressure hand valve 13 and the first low-pressure hand valve 14 before the cathode pipeline flow meter are closed.
b. And slowly opening a bottle body valve of the air source-B, and slowly opening a valve of a second pressure reducing valve 6 after the reading of a pressure gauge 4 in front of the second valve is stable, and stabilizing the reading of a pressure gauge 8 behind the second valve at about 0.3 Mpa.
At this time, the gas source of the cathode is changed from A to B.
2. Pressure regulation:
in the pipeline system, the pressure regulation of the whole set of pipelines mainly comprises a first pre-valve pressure gauge 3, a second pre-valve pressure gauge 4, a first pressure reducing valve 5, a second pressure reducing valve 6, a first post-valve pressure gauge 7, a second post-valve pressure gauge 8, a first buffer tank 9 and a second buffer tank 10 which are arranged at the upstream. All the parts are formed by connecting stainless steel welding pipelines and VCR joints. In the experimental engineering, the first pressure reducing valve 5 and the second pressure reducing valve 6 can be slowly adjusted according to the experimental requirements and the measuring ranges of the mass flowmeters, the pressure of the supplied propellant is controlled within the required range by observing the pressure gauge 7 behind the first valve and the pressure gauge 8 behind the second valve, and meanwhile, the buffer tank can also keep the pressure of the whole system stable.
3. Mass flow meter adjustment:
the backup mass flowmeters 18, 20 are backup flowmeters of the mass flowmeters 17, 19, respectively. Meanwhile, the low-pressure valves are added in front of and behind each mass flowmeter, so that each pipeline can be closed when the flowmeter needs to be replaced, the pipeline and the vacuum chamber can be kept in a low-pressure and sufficient cleanliness state all the time, and a corresponding experiment (taking the replacement of the flowmeter-1 as an example) is conveniently carried out later:
a. replacing the flowmeter-1: closing the first low-pressure hand valve 16 and the second low-pressure hand valve 26 before and after the flowmeter-1, and unscrewing the VCR connector; and replacing a new mass flowmeter, and screwing the connecting part of the pipeline. The second low pressure hand valve 26 is then first opened, the line downstream of the flow meter is evacuated, and then the first low pressure hand valve 16 is opened.
b. Switching the standby flow meter: the valve control switch of the mass flow meter-1 is closed, and then the first low-pressure hand valve 16 and the second low-pressure hand valve 26 are closed. Next, the low pressure hand valves 15, 25 are opened and the mass flow meter-1' is slowly adjusted to be within the designed range.
Claims (2)
1. A multi-purpose tubular supply system with replaceable cathode gas source and replaceable flow meter, comprising:
the device comprises a high-pressure xenon gas cylinder A (1), a high-pressure xenon gas cylinder B (2), a pressure gauge (3) before a first valve, a pressure gauge (4) before a second valve, a first pressure reducing valve (5), a second pressure reducing valve (6), a pressure gauge (7) after the first valve, a pressure gauge (8) after the second valve, a first buffer tank (9), a second buffer tank (10), a gas circuit control hand valve (11), a low-pressure hand valve, mass flowmeters (17, 19 and 21), standby mass flowmeters (18 and 20), filters (27, 28 and 29) and insulating joints (30, 31 and 32);
the gas outlet of the high-pressure xenon gas cylinder A (1) is sequentially connected with a first pressure reducing valve (5) and a first buffer tank (9) in series, a first pre-valve pressure gauge (3) is arranged in front of the first pressure reducing valve (5), a first post-valve pressure gauge (7) is arranged behind the first pressure reducing valve (5), 3 branches are divided from the other end of the first buffer tank (9), each branch is sequentially connected with a first low-pressure hand valve (12, 14, 16), a mass flow meter (17, 19, 21), a second low-pressure hand valve (22, 24, 26), a filter (27, 28, 29) and an insulating joint (30, 31, 32) in series, and the other end of each of the 3 insulating joints (30, 31, 32) is connected with a cabin flange of a vacuum cabin; one of the 3 branches is an anode gas circuit, and the other branch is a cathode gas circuit;
the anode gas path is provided with a standby mass flow meter (18), the front and the back of the standby mass flow meter (18) are respectively connected with low-pressure hand valves (15, 25) in series, the low-pressure hand valve (15) in front of the standby mass flow meter (18) is connected between the first buffer tank (9) and the first low-pressure hand valve (16) of the anode gas path, and the low-pressure hand valve (25) behind the standby mass flow meter (18) is connected between the second low-pressure hand valve (26) of the anode gas path and the filter (27);
the first cathode gas path is provided with a standby mass flow meter (20), the front and the back of the standby mass flow meter (20) are connected with low-pressure hand valves (13, 23) in series, the low-pressure hand valve (13) in front of the standby mass flow meter (20) of the first cathode gas path is connected between a first buffer tank (9) and a first low-pressure hand valve (14) of the first cathode gas path, and the low-pressure hand valve (23) behind the standby mass flow meter (20) is connected between a second low-pressure hand valve (24) of the first cathode gas path and a filter (28);
the gas outlet of the high-pressure xenon gas cylinder B (2) is sequentially connected in series with a second pressure reducing valve (4), a second buffer tank (10) and a gas circuit control hand valve (11), a second valve front pressure gauge (4) is arranged in front of the second pressure reducing valve (4), a second valve rear pressure gauge (8) is arranged behind the second pressure reducing valve (4), and 3 branch circuits are divided from the other end of the gas circuit control hand valve (11) and are respectively connected in front of a mass flowmeter (19) of a first cathode gas circuit, a mass flowmeter (21) of a second cathode gas circuit and a standby mass flowmeter (20) of the cathode gas circuit;
the high-pressure xenon gas cylinder A (1) is connected with a stainless steel pipeline through an 1/4VCR connector, the first pressure reducing valve and the second pressure reducing valve (5 and 6) are connected with the stainless steel pipeline through a 1/4VCR connector, and adjacent components are connected with each other through a 1/4VCR connector.
2. The multi-purpose tubular feed system with replaceable cathode gas source and flow meter of claim 1, wherein the first and second pre-valve pressure gauges (3, 4) range from 0 to 3000 psi; the inlet ranges of the first reducing valve and the second reducing valve (5, 6) are 0-10 MPa, and the outlet ranges are 0-0.6 MPa; the range of the pressure gauges (7, 8) behind the first valve and the second valve is-0.1-1.1 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304971.XA CN109459255B (en) | 2018-11-02 | 2018-11-02 | Multipurpose pipeline supply system with replaceable cathode gas source and replaceable flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304971.XA CN109459255B (en) | 2018-11-02 | 2018-11-02 | Multipurpose pipeline supply system with replaceable cathode gas source and replaceable flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109459255A CN109459255A (en) | 2019-03-12 |
| CN109459255B true CN109459255B (en) | 2021-10-26 |
Family
ID=65609362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811304971.XA Active CN109459255B (en) | 2018-11-02 | 2018-11-02 | Multipurpose pipeline supply system with replaceable cathode gas source and replaceable flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109459255B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231173B (en) * | 2019-05-31 | 2021-02-26 | 西安航天动力试验技术研究所 | Micro flow supply measuring device |
| CN113483939B (en) * | 2021-07-06 | 2022-06-14 | 中国人民解放军国防科技大学 | Fixed position variable pressure fuel injection system |
| CN115614185B (en) * | 2022-11-22 | 2023-05-16 | 东方空间(西安)宇航技术有限公司 | Gas-liquid supply system of rocket engine hot test bed |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014153570A9 (en) * | 2013-03-15 | 2015-08-06 | Transtar Group, Ltd | New and improved system for processing various chemicals and materials |
| CN105649907A (en) * | 2016-01-29 | 2016-06-08 | 兰州空间技术物理研究所 | Micro flow air feeding purity control method for propellers |
| CN105736270A (en) * | 2016-01-29 | 2016-07-06 | 兰州空间技术物理研究所 | Micro-flow gas supply purity control system for thruster |
| CN106574607A (en) * | 2014-07-30 | 2017-04-19 | 赛峰航空器发动机 | Spacecraft propulsion system and method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330792C (en) * | 2002-01-29 | 2007-08-08 | 三菱商事株式会社 | High pressure hydrogen producing apparatus and producing method |
| CN101539482B (en) * | 2009-04-21 | 2010-08-18 | 北京航空航天大学 | Electric propulsion testing platform gaseous-propellant supply device |
| CN101539443B (en) * | 2009-04-27 | 2010-09-22 | 北京航空航天大学 | System for measuring air injection volume of plasma jet |
| CN101655416B (en) * | 2009-09-11 | 2011-07-27 | 北京航空航天大学 | Cooling experiment system of supersonic speed air film |
| CN101718636B (en) * | 2009-12-11 | 2012-11-21 | 北京航空航天大学 | Full-height fan flow rate-pressure rise test device and test method |
| FR2979956B1 (en) * | 2011-09-09 | 2013-09-27 | Snecma | PLASMA STATIONARY POWER PROPULSION PROPULSION SYSTEM |
| CN102678500B (en) * | 2012-05-10 | 2014-03-12 | 北京航空航天大学 | Magnetic plasma propeller |
| FR2997462B1 (en) * | 2012-10-30 | 2018-09-14 | Safran Aircraft Engines | SUPPLYING AN ION PROPELLANT IN PROPULSIVE GAS |
| CN105067293B (en) * | 2015-07-16 | 2016-08-17 | 兰州空间技术物理研究所 | A kind of ion thruster life-span ground-testing plant |
| CN105292521B (en) * | 2015-10-16 | 2017-05-10 | 中国航天科技集团公司第九研究院第七七一研究所 | Power supply control system and method for Hall electric thruster of spacecraft |
| CN107271189B (en) * | 2017-06-12 | 2019-10-01 | 北京航空航天大学 | A kind of propellant sustainable supply system for electric propulsion engine test for a long time |
-
2018
- 2018-11-02 CN CN201811304971.XA patent/CN109459255B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014153570A9 (en) * | 2013-03-15 | 2015-08-06 | Transtar Group, Ltd | New and improved system for processing various chemicals and materials |
| CN106574607A (en) * | 2014-07-30 | 2017-04-19 | 赛峰航空器发动机 | Spacecraft propulsion system and method |
| CN105649907A (en) * | 2016-01-29 | 2016-06-08 | 兰州空间技术物理研究所 | Micro flow air feeding purity control method for propellers |
| CN105736270A (en) * | 2016-01-29 | 2016-07-06 | 兰州空间技术物理研究所 | Micro-flow gas supply purity control system for thruster |
Non-Patent Citations (3)
| Title |
|---|
| Development of Xenon Feed System for a Hall-Effect Thruster to Space-propulsion Applications;Kim Y、Kang S、Jung Y et al;《Journal of The Korean Society for Aeronautical and Space Sciences》;20111231;84-89页 * |
| Simplified Ion Thruster Xenon Feed System For NASA Science Missions;John Steven Snyder、Thomas M Randolph、Richard R.Hofer;《The 31st International Electric Propulsion Conference,Ann Arbor,Michigan》;20090924;1-16页 * |
| 电推进氙气流量控制机构;蒋光林、郭秉毅、潘海林;《全国第十二届空间及运动体控制技术学术年会论文》;20061231;第444-451页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109459255A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109459255B (en) | Multipurpose pipeline supply system with replaceable cathode gas source and replaceable flowmeter | |
| CN107271189B (en) | A kind of propellant sustainable supply system for electric propulsion engine test for a long time | |
| CN109469558B (en) | Low-temperature propellant supply system, method and device | |
| CN103697956A (en) | System for measuring evaporation rate of cryogenic vessel with stable back pressure | |
| CN101276732A (en) | System for sweeping microelectron air supply cabinet | |
| CN111059462B (en) | Air supplementing method and device for environment-friendly gas insulation equipment | |
| CN105402454B (en) | Gas supply adjusting device based on pressure reducer | |
| CN110595783B (en) | Pump pressure type liquid flow test system | |
| CN102445355A (en) | System and method for testing micro-flow thermal throttling device for ionic electric propulsion | |
| CN208495250U (en) | Blowing pipeline device and process gas convey cleaning systems | |
| CN207198045U (en) | A kind of gas-detecting device for GIS device fault gas chamber fast positioning | |
| US20150053290A1 (en) | Medical Gas Manifold | |
| CN113239644B (en) | Working point determining method suitable for double-component propulsion system | |
| CN112780779A (en) | Online adjusting system and method for hydrogen differential pressure of sealing oil in power plant | |
| CN113029630A (en) | Hydrothermal PTC intelligent detection system of new energy automobile | |
| CN208595953U (en) | Gas flow measurement calibration facility | |
| CN113833584A (en) | System and method for detecting performance of liquid rocket engine | |
| CN112345219A (en) | Blade air flow test system | |
| CN113062891B (en) | Oil way control device and control method of bidirectional conversion valve | |
| CN212132047U (en) | Process pipeline system for low-temperature bearing and dynamic seal test | |
| CN216591088U (en) | Pressure adjusting device for natural gas entering network | |
| CN111232253B (en) | Storage and supply device for solid working medium | |
| CN109932165B (en) | Throttling element debugging and verifying system and method for long-service-life gas circuit | |
| CN204420279U (en) | Under-voltage auto-closing pressure regulator after valve | |
| CN113110650B (en) | Single-source multi-branch outlet medium supply system and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |