CN108628352B - A kind of automatic control device for gasification flow of solid working medium - Google Patents
A kind of automatic control device for gasification flow of solid working medium Download PDFInfo
- Publication number
- CN108628352B CN108628352B CN201810353834.9A CN201810353834A CN108628352B CN 108628352 B CN108628352 B CN 108628352B CN 201810353834 A CN201810353834 A CN 201810353834A CN 108628352 B CN108628352 B CN 108628352B
- Authority
- CN
- China
- Prior art keywords
- working medium
- solid working
- automatic control
- gasification
- volume
- 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
- 239000007787 solid Substances 0.000 title claims abstract description 43
- 238000002309 gasification Methods 0.000 title claims abstract description 21
- 239000013589 supplement Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
- G05D7/012—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element being deformable and acting as a valve
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Actuator (AREA)
Abstract
本发明提供了一种固态工质气化流量机械式自动控制装置，包括：恒力弹簧，波纹管，加热器，气路，支架组成。其特点在于：恒力弹簧外沿与波纹管相切，通过改变波纹管容积来保持内部气体压力恒定；固态工质随着内部压力动态平衡调节过程自动调节气化的速度；固态工质的补充通过一种步进式补给方式实现。本发明结构简单、成本低廉、可靠性高，可用于空间电推进系统中固态工质的气化和供应。
The invention provides a mechanical automatic control device for the gasification flow of solid working medium, which comprises a constant force spring, a bellows, a heater, a gas circuit and a bracket. Its characteristics are: the outer edge of the constant force spring is tangent to the bellows, and the internal gas pressure is kept constant by changing the volume of the bellows; the solid working medium automatically adjusts the gasification speed with the dynamic balance adjustment process of the internal pressure; the supplement of the solid working medium It is realized by a step-by-step replenishment method. The invention has the advantages of simple structure, low cost and high reliability, and can be used for gasification and supply of solid working medium in the space electric propulsion system.
Description
Technical Field
The invention relates to an aerospace electric propulsion technology, belongs to the technical field of vacuum containers, and particularly relates to an automatic control device for gasification flow of a solid working medium.
Background
At present, in a space electric propulsion working medium supply system, solid working medium gasification is carried out in a mode of matching a heater with a throttle valve: the method comprises the steps of directly heating a solid working medium through a heater, gasifying the working medium in a solid state under the heating condition, and controlling generated gas through a throttle valve so as to supply the gas outwards according to the required flow.
The disadvantage of such a supply system is mainly the difficulty in controlling the heating process of the solid working substance. If the heating time is insufficient, the gas pressure in the container is insufficient, and the required flow cannot be provided; if the heating time is too long, the pressure inside the container will be too high, and the requirements for the container and the throttle valve are increased. The problem can be solved by adding an active control system, but the complexity of the system is increased, the reliability of the system is reduced, the cost is increased, a certain lag time exists in the control of the heater, and the instantaneity of the system is reduced.
Disclosure of Invention
The invention provides an automatic control device for solid working medium gasification flow, which can realize automatic control of solid working medium gasification flow through a simple mechanical control system, and has low cost and strong instantaneity.
In order to achieve the purpose, the automatic control device for the gasification flow of the solid working medium comprises a constant pressure device, a volume variable device, a heater and a gas circuit;
two ends of the volume variable device are sealed, a solid working medium and a heater are respectively fixed on two opposite end surfaces in the volume variable device, and the outer surface of the end where the solid working medium is located is in contact with the constant pressure device; the constant pressure device is used for providing constant pressure for the volume variable device; the heater is used for heating and gasifying the solid working medium; the gas circuit is connected with the corrugated pipe through a valve.
Wherein the constant pressure device is a constant force spring.
Wherein the constant force spring is in tangential contact with the variable volume device.
Wherein the volume-variable device is a bellows.
Wherein, the supplement of the solid working medium is realized by a stepping supplement mode.
Has the advantages that:
the automatic control device for the gasification flow of the solid working medium has the advantages of simple structure and low cost. The device can realize the high-reliability automatic control of the gasification flow of the solid working medium through a simple mechanical control system consisting of a corrugated pipe and a constant force spring under the preset parameters.
Drawings
FIG. 1 is a schematic view of an automatic control device for gasification flow of solid working medium according to the present invention.
Wherein: 1-constant force spring, 2-corrugated pipe, 3-heater, 4-gas circuit and 5-support.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
As shown in fig. 1, the automatic control device for solid working medium gasification flow of the present embodiment includes a constant force spring 1, a bellows 2, a heater 3, an air passage 4 and a support 5,
two ends of the corrugated pipe 2 are sealed and used for providing a closed space with variable volume, one end of the corrugated pipe is fixed on the bracket 5, the heater 3 is fixed on the inner surface of the end, the other end of the corrugated pipe is tangent to the outer edge of the constant force spring 1, and the solid working medium is fixed on the inner surface of the end surface; the constant force spring 1 is used for providing constant pressure for the corrugated pipe 2; the heater 3 is used for heating and gasifying solid working media; the gas path 4 is connected with the corrugated pipe 2 through a valve and outputs gaseous working media outwards through the gas path 4; the bracket 5 is used for installing and fixing the constant force spring 1, the corrugated pipe 2, the heater 3 and the air circuit 4.
Before the automatic control device for the gasification flow of the solid working medium operates, the corrugated pipe 2 is in a compressed state, and the solid working medium is tightly attached to the heater 3. After the device operates, the heater 3 starts to heat the solid working medium, the solid working medium is heated and gasified, and working medium gas is generated to increase the internal pressure of the corrugated pipe 2; when the internal pressure is higher than the pressure of the constant force spring 1, the constant force spring 1 is compressed, the corrugated pipe 2 begins to extend to increase the volume and reduce the internal pressure, and the solid working medium is gradually separated from the heater 3 in the process until the gasification of the solid working medium is stopped. Working medium gas is conveyed outwards through the gas circuit 4, the internal pressure is reduced, when the pressure is lower than the pressure of the constant force spring 1, the constant force spring 1 compresses the corrugated pipe 2, the volume of the corrugated pipe 2 is reduced, the internal pressure is increased, the solid working medium is gradually close to the heater 3 in the process until the solid working medium is gasified, the internal gas is replenished again, and the working medium gas is generated to increase the internal pressure of the corrugated pipe 2; when the internal pressure is greater than the constant force spring 1 pressure, the constant force spring 1 is compressed again. The whole process is repeated until the solid working medium is completely consumed.
The constant force spring 1 can be replaced by other devices capable of providing constant pressure; bellows 2 may be replaced by other variable volume devices. The gasification speed of the solid working medium is automatically adjusted along with the volume change of the corrugated pipe 2. The supplement of the solid working medium can be realized in a stepping supplement mode.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An automatic control device for the gasification flow of a solid working medium is characterized by comprising a constant pressure device, a volume variable device, a heater (3) and a gas circuit (4);
two ends of the volume-variable device are sealed, a solid working medium and a heater (3) are respectively fixed on two opposite end surfaces in the volume-variable device, and the outer surface of the end where the solid working medium is located is in contact with the constant-pressure device; the constant pressure device is used for providing constant pressure for the volume variable device; the heater (3) is used for heating and gasifying the solid working medium; the gas circuit (4) is connected with the volume variable device through a valve; the constant pressure device is a constant force spring (1).
2. The automatic control device for the gasification flow of the solid working medium according to claim 1, wherein the constant force spring is in tangential contact with the volume variable device.
3. An automatic control device for the gasification flow of a solid working medium according to any of claims 1-2, characterized in that the volume-variable device is a bellows (2).
4. The device for automatically controlling the gasification flow of the solid working medium as claimed in any one of claims 1 to 2, wherein the supplement of the solid working medium is realized by a step-by-step supplement mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353834.9A CN108628352B (en) | 2018-04-19 | 2018-04-19 | A kind of automatic control device for gasification flow of solid working medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353834.9A CN108628352B (en) | 2018-04-19 | 2018-04-19 | A kind of automatic control device for gasification flow of solid working medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108628352A CN108628352A (en) | 2018-10-09 |
| CN108628352B true CN108628352B (en) | 2021-07-06 |
Family
ID=63705561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810353834.9A Active CN108628352B (en) | 2018-04-19 | 2018-04-19 | A kind of automatic control device for gasification flow of solid working medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108628352B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1156697A (en) * | 1979-09-22 | 1983-11-08 | Karl Peter | Method of pneumatically conveying fine-grain fuel to a gasifier |
| CN2171070Y (en) * | 1992-10-21 | 1994-07-06 | 邰晓峰 | Vaporization combustion device for more than five carbon components in liquefied gas |
| US5828582A (en) * | 1997-03-25 | 1998-10-27 | Caterpillar Inc. | Automatic control of endothermic gas generators using low cost oxygen sensing probes |
| CN2325538Y (en) * | 1997-02-04 | 1999-06-23 | 吴大经 | vaporizer |
| CN101038037A (en) * | 2007-05-15 | 2007-09-19 | 重庆川仪十一厂有限公司 | Micro-flow regulating valve |
| CN201129590Y (en) * | 2007-12-21 | 2008-10-08 | 秦皇岛市泰德管业科技有限公司 | Special external pressure type straight pipe pressure equilibrium type corrugated pipe expansion node for coal gasification apparatus |
| CN101479402A (en) * | 2006-06-27 | 2009-07-08 | 株式会社富士金 | Vaporizer/supplier of material and automatic pressure regulator for use therein |
| EP2746368A1 (en) * | 2012-12-20 | 2014-06-25 | Air Products And Chemicals, Inc. | Method and apparatus for feeding municipal solid waste to a plasma gasifier reactor |
| CN204164656U (en) * | 2014-09-19 | 2015-02-18 | 廊坊新奥燃气有限公司 | A kind of LNG vaporizer locking system |
| CN105508869A (en) * | 2014-10-08 | 2016-04-20 | 开立德股份有限公司 | Gas supply system |
| CN106369207A (en) * | 2016-08-30 | 2017-02-01 | 兰州空间技术物理研究所 | Micro flow proportional control valve |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303597B2 (en) * | 2002-10-15 | 2007-12-04 | Pratt & Whitney Rocketdyne, Inc. | Method and apparatus for continuously feeding and pressurizing a solid material into a high pressure system |
| KR20100058899A (en) * | 2008-11-25 | 2010-06-04 | 삼성전자주식회사 | Fuel reformer |
| CN101458250B (en) * | 2008-12-26 | 2012-12-26 | 尚沃医疗电子无锡有限公司 | Self-powered gas flow control pipe fitting |
| CN101818828B (en) * | 2010-04-15 | 2012-07-25 | 上海应用技术学院 | Thermodynamic regulating valve with remote control function |
| US20100323435A1 (en) * | 2010-06-25 | 2010-12-23 | Boateng Akwasi A | Injection System for Bio-fuel Reactor |
| CN201715169U (en) * | 2010-07-21 | 2011-01-19 | 秦皇岛北方管业有限公司 | External-compression composite balanced-type expansion joint |
| CN102434782A (en) * | 2011-12-14 | 2012-05-02 | 湖北和远气体有限公司 | Liquefied gas supply system based on automated control |
| US9550630B2 (en) * | 2013-03-15 | 2017-01-24 | Mark E. Koenig | System for processing material for a gasifier |
| JP6346551B2 (en) * | 2013-12-05 | 2018-06-20 | Ckd株式会社 | Flow path block and fluid supply control device |
| CN105716224A (en) * | 2014-12-22 | 2016-06-29 | 株式会社堀场Stec | VAPORIZING container, vaporizer, and VAPORIZING DEVICE |
| CN105861064B (en) * | 2015-01-23 | 2018-11-16 | 通用电气公司 | Coal slurry preheating device and the gasification system and method for using the device |
| CN106765296A (en) * | 2017-01-11 | 2017-05-31 | 东莞金兆顺五金工业有限公司 | Liquid fuel flow control method and device for gasification combustion of liquid fuel |
| CN206754797U (en) * | 2017-03-22 | 2017-12-15 | 混合研究有限公司 | Portable carbon dioxide adapter system |
-
2018
- 2018-04-19 CN CN201810353834.9A patent/CN108628352B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1156697A (en) * | 1979-09-22 | 1983-11-08 | Karl Peter | Method of pneumatically conveying fine-grain fuel to a gasifier |
| CN2171070Y (en) * | 1992-10-21 | 1994-07-06 | 邰晓峰 | Vaporization combustion device for more than five carbon components in liquefied gas |
| CN2325538Y (en) * | 1997-02-04 | 1999-06-23 | 吴大经 | vaporizer |
| US5828582A (en) * | 1997-03-25 | 1998-10-27 | Caterpillar Inc. | Automatic control of endothermic gas generators using low cost oxygen sensing probes |
| CN101479402A (en) * | 2006-06-27 | 2009-07-08 | 株式会社富士金 | Vaporizer/supplier of material and automatic pressure regulator for use therein |
| CN101038037A (en) * | 2007-05-15 | 2007-09-19 | 重庆川仪十一厂有限公司 | Micro-flow regulating valve |
| CN201129590Y (en) * | 2007-12-21 | 2008-10-08 | 秦皇岛市泰德管业科技有限公司 | Special external pressure type straight pipe pressure equilibrium type corrugated pipe expansion node for coal gasification apparatus |
| EP2746368A1 (en) * | 2012-12-20 | 2014-06-25 | Air Products And Chemicals, Inc. | Method and apparatus for feeding municipal solid waste to a plasma gasifier reactor |
| CN204164656U (en) * | 2014-09-19 | 2015-02-18 | 廊坊新奥燃气有限公司 | A kind of LNG vaporizer locking system |
| CN105508869A (en) * | 2014-10-08 | 2016-04-20 | 开立德股份有限公司 | Gas supply system |
| CN106369207A (en) * | 2016-08-30 | 2017-02-01 | 兰州空间技术物理研究所 | Micro flow proportional control valve |
Non-Patent Citations (2)
| Title |
|---|
| 改进型复合固体推进剂燃烧性能调节及放大技术研究;席海军;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20161115;第C031-81页 * |
| 自热式固体热载体煤气化特性实验研究;闫中元;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20150515;第B017-41页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108628352A (en) | 2018-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108628352B (en) | A kind of automatic control device for gasification flow of solid working medium | |
| CN204213426U (en) | Interior pressure Self-operated pressure reducing valve | |
| CN105156691B (en) | A kind of gas engine gas flow control valve | |
| CN205781318U (en) | Labyrinth type noise reduction regulation valve | |
| CN206617598U (en) | Pressure-reducing valve with piston balance ring | |
| CN101915651B (en) | Push-type displacement feedback air pressure correction mechanism for vibration table in centrifugal environment | |
| CN201152385Y (en) | Self-operated type flow control valve | |
| CN108155163B (en) | Radiator with temperature-controlled water supply unit | |
| CN109780282A (en) | A kind of axial flow type gas pressure regulator | |
| US11885322B2 (en) | Heat-driven pumping system | |
| CN209497329U (en) | A kind of adjustable disc type electric machine in gap and stroke-increasing electric automobile | |
| CN110578817A (en) | A dynamic balance regulating valve | |
| CN106486686B (en) | A kind of fuel cell pressure balance self-checking device and fuel cell system | |
| JPH02502889A (en) | Air-driven low-frequency sound generator with positive feedback system | |
| CN109944780A (en) | A valveless piezoelectric pump | |
| CN116465084A (en) | Clean room flow control system | |
| CN104500800A (en) | Axial flow pressure regulator | |
| CN208919453U (en) | A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve | |
| CN216382245U (en) | Gas bearing assembly and gas turbine | |
| CN201136703Y (en) | Auto-adjusting laval nozzle | |
| CN108167500A (en) | Automatic flow control regulating valve applied to high-temperature gas | |
| CN211117835U (en) | Device for realizing constant-pressure low-pressure gas flow increase | |
| CN211203015U (en) | Dynamic balance regulating valve | |
| CN211875241U (en) | A self-operated regulating valve for boiler gas pipeline | |
| US20160313746A1 (en) | Proactive Pressure Stabilizing System and Method |
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 |