CN109000011A - For being cold-started the pin type isolating valve of high-pressure mini gas - Google Patents
For being cold-started the pin type isolating valve of high-pressure mini gas Download PDFInfo
- Publication number
- CN109000011A CN109000011A CN201810918980.1A CN201810918980A CN109000011A CN 109000011 A CN109000011 A CN 109000011A CN 201810918980 A CN201810918980 A CN 201810918980A CN 109000011 A CN109000011 A CN 109000011A
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- China
- Prior art keywords
- started
- cold
- isolating device
- valve
- pin type
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
Abstract
It is a kind of for being cold-started the pin type isolating valve of high-pressure mini gas, it include: valve casing and isolating device, hollow starting needle and the pedestal with insurance institution for being set to its inside, wherein: hollow starting needle face isolating device setting, the upper surface of insurance institution is in contact with isolating device and shortens the spacing of hollow starting needle and isolating device after heated, until hollow starting needle wears out isolating device.Insurance institution and pedestal integrally casting of the invention, not only increases the endurance of insurance institution, has widened isolating valve and has been applicable in pressure limit, has alleviated the weight of valve body, and reduce the generation of thermal contact resistance and the starting of isolating valve can be completed with lesser power；It is relatively low that unit temp is isolated in start-up course, effectively prevents the case where metallic spacer layer blows bankruptcy life clast by gas because heating fusing.
Description
Technical field
It is specifically a kind of for being cold-started high-pressure mini the present invention relates to a kind of technology in high pressure gas isolation field
The pin type isolating valve of gas.
Background technique
Due to the needs of space propultion task, gaseous propellant is up to the several years sometimes for closed in high pressure tank, because
This isolating valve needs to control outside the amount of leakage of propellant under high pressure, also to guarantee still can normally start after the several years.It passes
System isolating valve mostly uses normally closed disposable design, and firepower Starting mode can generate significant shock on startup；It is molten using heating
Change sealing metal, the metal fragment blocking gas passage of generation and the gas flowing for influencing filter；It is limited using filter
Isolating valve further reduces；Sealing metal and cushion block METAL HEATING PROCESS are melted respectively using multiple heating devices, consumption power compared with
Greatly.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, proposes a kind of for being cold-started the pin type of high-pressure mini gas
Isolating valve is able to ascend the endurance of device, increases heat transfer contact area, and insurance institution and base body integrally casting,
Greatly reduce the generation of thermal contact resistance.
The present invention is achieved by the following technical solutions:
The present invention successively includes: valve casing and is set to its internal isolating device, hollow starting needle and has safety
The pedestal of structure, in which: the setting of hollow starting needle face isolating device, the upper surface of insurance institution be in contact with isolating device and
The spacing for shortening hollow starting needle and isolating device after heated, until hollow starting needle wears out isolating device.
The isolating device includes: the metallic spacer layer of the disc structure containing axial hole and casting surface thereon,
Wherein: the internal diameter of axial hole matches with hollow starting needle.
The upper surface of the disc structure is in circular arc convex shape.
The hollow starting needle includes: from top to bottom sequentially connected syringe needle, cushion block and threaded ends, in which: needle
Head and threaded ends are respectively positioned on cushion block center and are integrated connection.
The syringe needle is further provided with and axial micropore company with the axial micropore being connected to, the top of syringe needle is equipped in cushion block
Logical radial side opening.
The base interior is equipped with two cavitys being connected to up and down, in which: the end of hollow starting needle is fixedly installed on
Between two cavitys, the insurance institution be located in the upper plenum of pedestal and with pedestal integrally casting.
Technical effect
Compared with prior art, insurance institution of the invention and pedestal integrally casting, not only increase holding for insurance institution
Stress, widened isolating valve be applicable in pressure limit, alleviate the weight of valve body, and reduce the generation of thermal contact resistance, with compared with
The starting of isolating valve can be completed in small power；The isolating device for being cast with metallic spacer layer increases heat transfer contact area, improves
Heating speed is to start isolating valve；It is relatively low that unit temp is isolated in start-up course, effectively prevents metallic spacer layer because of heating
The case where melting and bankruptcy life clast blown by gas, meanwhile, the side opening of hollow starting needle is located at the upstream of isolating device, effectively keeps away
The clast for exempting from isolating device generation flows to downstream by side opening, therefore the present invention does not need filter, reduces costs.
Detailed description of the invention
Fig. 1 is explosive view of the invention；
Fig. 2 is the structural schematic diagram before present invention starting；
Fig. 3 is the structural schematic diagram after present invention starting；
Fig. 4 is the structural schematic diagram of pedestal；
Fig. 5 is the structural schematic diagram of hollow starting needle；
Fig. 6 is the structural schematic diagram of isolating device；
In figure: valve deck 1, isolating device 2, hollow starting needle 3, pedestal 4, ceramic sleeve 5, radial side opening 6, insurance institution 7,
Threaded hole 8, axial micropore 9, metallic spacer layer 10, disc structure 11, axial hole 12, syringe needle 13, cushion block 14, threaded ends 15,
Upper plenum 16, lower cavity 17.
Specific embodiment
As shown in Figure 1, the present embodiment includes: valve deck 1, isolating device 2, hollow starting needle 3 and pedestal 4, in which: hollow to open
Dynamic needle 3 is in the axial hole 12 of isolating device 2.
The valve deck 1 is hollow structure to connect high side gas pipeline or storage propellant.
As shown in fig. 6, the isolating device 2 includes: containing axial hole 12 and upper surface is in the disk knot of circular arc protrusion
Structure 11 and the metallic spacer layer 10 for casting surface thereon, are isolated high side gas jointly.
As shown in Fig. 2, the aperture of the axial hole 12 is greater than the outer diameter of hollow starting needle 3.
The material of the metallic spacer layer 10 is the metal or alloy of soft, low melting point.
As shown in figure 5, the hollow starting needle 3 successively includes: syringe needle 13, cushion block 14 and threaded ends 15, in which:
Syringe needle 13 and threaded ends 15 are respectively positioned on 14 center of cushion block and are integrated connection.
The syringe needle 13 and cushion block 14 are equipped with the axial micropore 9 be connected to, the top of the syringe needle 13 be further provided with and
The radial side opening 6 that axial micropore 9 is connected to, for forming gas passage after starting.
As shown in figure 3, the threaded ends 15 be in lead to structure and with axial micropore 9 penetrate through.
The material that the hollow starting needle 3 uses is Stainless steel 316 L.
As shown in figure 4, inside the pedestal 4 be three-stage cavity structure, in which: second segment cavity be threaded hole 8 with
Match the threaded ends 15 of hollow starting needle 3.
The first segment cavity of the pedestal 4 is equipped with insurance institution 7, the insurance institution 7 be hollow cylinder and with pedestal 4
Integrally casting.
The insurance institution 7 is made of metallic tin.
The outside of the pedestal 4 is equipped with ceramic sleeve 5 to insulate.
Sealing ring is equipped between the valve deck 1 and isolating device 2.
The outside of the isolating valve is fully sealed using solder metal.
Above-mentioned apparatus works in the following manner: in the outer uniform winding heating element of ceramic sleeve 5 of the invention, and passing through
External circuit controls the heating element.As shown in figure 3, the insurance institution 7 in the heat transfer to pedestal 4 that heating element generates, protects
Dangerous mechanism 7 softens.As insurance institution 7 is constantly by thermal softening, upstream high gas slowly pushes isolating device 2, thus constantly
Compress insurance institution 7.After moving down the distance greater than 2mm with isolating device 2, hollow starting needle 3 will pass through isolating device 2
Axial hole 12 and wear out the sheet metal 10 of soft.While due to heating pedestal 4, heat can also reach isolating device 2
Sheet metal 10, the sheet metal 10 make hardness decrease because heated, and gold can normally be worn out by further ensuring hollow starting needle 3
Belong to interlayer 10.At this point, the radial side opening 6 of hollow starting needle 3 is exposed to high pressure gas side, open lead to low-pressure side gas it is logical
Road, isolating valve starting.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (8)
1. a kind of for being cold-started the pin type isolating valve of high-pressure mini gas characterized by comprising valve casing and be set to it
Internal isolating device, hollow starting needle and the pedestal with insurance institution, in which: hollow starting needle face isolating device is set
It sets, the upper surface of insurance institution is in contact with isolating device and shortens the spacing of hollow starting needle and isolating device after heated,
Until hollow starting needle wears out isolating device；
The isolating device includes: the disc structure containing axial hole and the metallic spacer layer for casting surface thereon, in which:
The internal diameter of axial hole matches with hollow starting needle；
The hollow starting needle includes: from top to bottom sequentially connected syringe needle, cushion block and threaded ends, in which: syringe needle and
The axial micropore of connection is equipped in cushion block, the top of syringe needle is further provided with the radial side opening with axial microporous connectivity.
2. according to claim 1 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that the spiral shell
Line connecting pin be in lead to structure and with axial micropore penetrate through.
3. according to claim 1 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that the circle
The upper surface of dish structure is in circular arc convex shape.
4. according to claim 1 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that the base
Seat is internal to be equipped with two cavitys being connected to up and down, in which: the end of hollow starting needle is fixedly installed between two cavitys, described
Insurance institution be located in the upper plenum of pedestal and with pedestal integrally casting.
5. according to claim 1 or 4 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that described
Insurance institution be hollow cylindrical structure.
6. according to claim 1 or 4 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that described
Pedestal outside be equipped with ceramic sleeve to insulate.
7. according to claim 1 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that the valve
Sealing ring is equipped between shell and isolating device.
8. according to claim 1 or 4 for being cold-started the pin type isolating valve of high-pressure mini gas, characterized in that described
Insurance institution use metal or alloy more lower than the fusing point and hardness of pedestal and sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918980.1A CN109000011B (en) | 2018-08-14 | 2018-08-14 | For being cold-started the pin type isolating valve of high-pressure mini gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918980.1A CN109000011B (en) | 2018-08-14 | 2018-08-14 | For being cold-started the pin type isolating valve of high-pressure mini gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000011A true CN109000011A (en) | 2018-12-14 |
| CN109000011B CN109000011B (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810918980.1A Active CN109000011B (en) | 2018-08-14 | 2018-08-14 | For being cold-started the pin type isolating valve of high-pressure mini gas |
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| Country | Link |
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| CN (1) | CN109000011B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030080210A1 (en) * | 1995-10-04 | 2003-05-01 | Joachim Jaeger | Device for producing high pressure in a fluid in miniature |
| CN201339751Y (en) * | 2008-12-02 | 2009-11-04 | 北京北机机电工业有限责任公司 | Anti-malfunction pilot pneumatic valve |
| CN105209340A (en) * | 2013-03-15 | 2015-12-30 | 帕尔默实验室有限责任公司 | Launch vehicle and system and method for economically efficient launch thereof |
| CN205824308U (en) * | 2016-07-15 | 2016-12-21 | 浙江熵道传热技术有限公司 | A kind of relief valve and pressure apparatus |
| CN108301997A (en) * | 2018-01-24 | 2018-07-20 | 上海交通大学 | Pulsed plasma thruster based on Z-PINCH no-spark plugs |
-
2018
- 2018-08-14 CN CN201810918980.1A patent/CN109000011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030080210A1 (en) * | 1995-10-04 | 2003-05-01 | Joachim Jaeger | Device for producing high pressure in a fluid in miniature |
| CN201339751Y (en) * | 2008-12-02 | 2009-11-04 | 北京北机机电工业有限责任公司 | Anti-malfunction pilot pneumatic valve |
| CN105209340A (en) * | 2013-03-15 | 2015-12-30 | 帕尔默实验室有限责任公司 | Launch vehicle and system and method for economically efficient launch thereof |
| CN205824308U (en) * | 2016-07-15 | 2016-12-21 | 浙江熵道传热技术有限公司 | A kind of relief valve and pressure apparatus |
| CN108301997A (en) * | 2018-01-24 | 2018-07-20 | 上海交通大学 | Pulsed plasma thruster based on Z-PINCH no-spark plugs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109000011B (en) | 2019-08-02 |
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