CN203614761U - Ultralow-temperature large-caliber pneumatic exhaust valve - Google Patents
Ultralow-temperature large-caliber pneumatic exhaust valve Download PDFInfo
- Publication number
- CN203614761U CN203614761U CN201320778371.3U CN201320778371U CN203614761U CN 203614761 U CN203614761 U CN 203614761U CN 201320778371 U CN201320778371 U CN 201320778371U CN 203614761 U CN203614761 U CN 203614761U
- Authority
- CN
- China
- Prior art keywords
- valve
- actuator
- valve body
- air cylinder
- cylinder shell
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- 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.)
- Expired - Lifetime
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- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 5
- 229910052738 indium Inorganic materials 0.000 claims description 8
- 230000011664 signaling Effects 0.000 claims description 5
- 229920002313 fluoropolymer Polymers 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000002365 multiple layer Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
An ultralow-temperature large-caliber pneumatic exhaust valve comprises a valve body, a valve flap, a valve seat, an indium wire, a valve rod, a main spring, a flange, an air cylinder casing, an actuator, a position annunciator, an air cylinder casing connection pipe nozzle, an auxiliary spring and an ejection rod piston, wherein static sealing between the valve seat and the valve body is achieved through the indium wire, the valve rod is vertically connected with the middle of the valve flap, a retaining ring is arranged at the end portion of the valve rod, the main spring is arranged between the valve body and the retaining ring, the valve rod corresponds to the ejection rod piston in the axial direction, the air cylinder casing is connected with the valve body through a flange, the actuator is arranged in the air cylinder casing to correspond to the air cylinder casing connection pipe nozzle and adopts a multiple-layer welding film box, and the auxiliary spring sleeves the ejection rod piston. The ultralow-temperature large-caliber pneumatic exhaust valve is easy to seal and is not clamped, and exhaust flows are sufficient.
Description
Technical field
The utility model relates to the pneumatic outlet valve of a kind of ultralow temperature heavy caliber, applies in the pneumatic exhaust of space flight model.
Background technique
Flying model ultralow temperature outlet valve, bore is less, does not meet the usage requirement of carrier rocket heavy caliber of new generation, ultralow temperature.Have no at present the cryopumping valve that is applicable to the large flow of carrier rocket of new generation, ultra-low temperature surroundings.The design of heavy caliber Subzero valve mainly contains three difficult points:
(1) heavy caliber outlet valve is difficult for realizing the requirement of Large Launch Vehicle low temperature seal.A new generation's carrier rocket propellant agent is liquid hydrogen, liquid oxygen, and danger is larger, higher to seal request.And heavy caliber valve seat, spool processing plane degree, perpendicularity are difficult for guaranteeing, be difficult at low temperatures realizing sealing.
(2) cryopumping valve guide structure hardening at low temperatures, deformation-compensated ability reduces greatly, works clamping stagnation easily occurs under low temperature environment, can not realize the normal exhaust of tank, and its pressure is raise, and exceedes allowed band, has great danger.
(3) heavy caliber outlet valve spool area is larger, needs larger gas load to open, and is U-shaped bellows at present in the actuator of use, and U-shaped bellows is easy unstability under high pressure, and reliability is lower, is occurring such fault at present with model cryopumping valve.
Model utility content
Technical problem to be solved in the utility model is: for meeting the requirement of carrier rocket ultralow temperature of new generation, high-flow air-exhaust, provide a kind of heavy caliber outlet valve that can adapt to ultra-low temperature surroundings.
Technical solution of the present utility model is:
The pneumatic outlet valve of a kind of ultralow temperature heavy caliber, comprise valve body, flap, valve seat, indium silk, valve rod, main spring, flange, cylinder shell, actuator, position signalling apparatus, cylinder shell connecting-tube nozzle, auxiliary spring, ram piston, wherein between valve seat and valve body, pass through indium silk static seal, the vertical flap of valve rod middle part connects, valve rod end is provided with back-up ring, main spring is arranged between valve body and back-up ring, valve rod with ram piston axially corresponding, cylinder shell is connected with valve body by flange, actuator is arranged in cylinder shell corresponding with cylinder shell connecting-tube nozzle, actuator adopts multilayer welding bellows, auxiliary spring is placed on ram piston.
Ram piston is overcoat fluoroplastic structures.
Actuator adopts high-temperature alloy material.
The utility model advantage is compared with prior art:
(1) between the utility model valve seat and valve body, static seal adopts indium silk sealing configuration, makes low temperature heavy caliber exhaust valve sealing effect better;
(2) actuator adopts multilayer welding bellows, efficiently solves the lead problem of easy clamping stagnation of heavy caliber cryopumping valve;
(3) piston guide bar is overcoat fluoroplastic structures, and flow is more abundant at low temperatures to make outlet valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the pneumatic outlet valve of a kind of ultralow temperature heavy caliber, comprise valve body 1, flap 2, valve seat 3, indium silk 4, valve rod 5, main spring 6, flange 7, cylinder shell 8, actuator 9, position signalling apparatus 10, cylinder shell connecting-tube nozzle 11, auxiliary spring 12, ram piston 13, wherein between valve seat 3 and valve body 1, pass through indium silk 4 static seals, indium silk fifth wheel control aspect is all respond well, the mounting torque needing is less, not only can reduce valve seat 3 flange thicknesses, and it is good to avoid valve seat 3 to be out of shape valve seat 3 poor sealings that cause, easily guarantee that valve seat 3 end face corresponding to valve body 1 fits tightly location simultaneously, guarantee the sealing at valve seat 3 places.Actuator 9 adopts multilayer welding bellows, multilayer welding bellows is high-temperature alloy material, can adapt to the rugged environment such as high pressure, low temperature, and there is larger deformability, can adapt to the requirement of the larger stroke of heavy caliber outlet valve, this structure has good self lubricity, and has at low temperatures larger displacement compensation capability.
The vertical flap of valve rod 52 middle parts connect, valve rod 5 ends are provided with back-up ring, main spring 6 is arranged between valve body 1 and back-up ring, valve rod 5 and ram piston 12 are axially to corresponding, cylinder shell 8 is connected with valve body 1 by flange 7, actuator 9 is arranged in cylinder shell 8 corresponding with cylinder shell connecting-tube nozzle 11, and auxiliary spring 12 is placed on ram piston 13, and ram piston 13 is overcoat fluoroplastic structures.
Working procedure is: (one) exhaust process, under position signalling apparatus 10 effects, pass into 5MPa and control gas, control gas and promote actuator 9, ram piston 13, overcome auxiliary spring 12 precompressions, to left movement, ram piston 13 promotes flap 2 and overcomes main spring 6 precompressions, and to left movement, outlet valve is opened, tank gas, by entrance, outlet valve internal diameter, is discharged through outlet; (2) closing process, under position signalling apparatus 10 effects, makes gas be reduced to gauge pressure, actuator 9 moves right under auxiliary spring 12 pressure, gets back to closed position, and flap 2 is under main spring 6 pressure-actings simultaneously, move right, spool is closed, and entrance and outlet passage are closed.
The unexposed technology of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (3)
1. the pneumatic outlet valve of ultralow temperature heavy caliber, it is characterized in that, comprise valve body (1), flap (2), valve seat (3), indium silk (4), valve rod (5), main spring (6), flange (7), cylinder shell (8), actuator (9), position signalling apparatus (10), cylinder shell connecting-tube nozzle (11), auxiliary spring (12), ram piston (13), wherein between valve seat (3) and valve body (1), pass through indium silk (4) static seal, the vertical flap (2) of valve rod (5) middle part connects, valve rod (5) end is provided with back-up ring, main spring (6) is arranged between valve body (1) and back-up ring, valve rod (5) with ram piston (12) axially corresponding, cylinder shell (8) is connected with valve body (1) by flange (7), actuator (9) is arranged in cylinder shell (8) corresponding with cylinder shell connecting-tube nozzle (11), actuator (9) adopts multilayer welding bellows, auxiliary spring (12) is placed on ram piston (13).
2. the pneumatic outlet valve of a kind of ultralow temperature heavy caliber as claimed in claim 1, is characterized in that, ram piston (13) is overcoat fluoroplastic structures.
3. the pneumatic outlet valve of a kind of ultralow temperature heavy caliber as claimed in claim 1, is characterized in that, actuator (9) adopts high-temperature alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778371.3U CN203614761U (en) | 2013-11-29 | 2013-11-29 | Ultralow-temperature large-caliber pneumatic exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778371.3U CN203614761U (en) | 2013-11-29 | 2013-11-29 | Ultralow-temperature large-caliber pneumatic exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614761U true CN203614761U (en) | 2014-05-28 |
Family
ID=50767410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320778371.3U Expired - Lifetime CN203614761U (en) | 2013-11-29 | 2013-11-29 | Ultralow-temperature large-caliber pneumatic exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614761U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591551A (en) * | 2018-07-17 | 2018-09-28 | 阜宁县中洲阀门有限公司 | A kind of forged steel fuel feeding valve |
| CN109027398A (en) * | 2018-09-19 | 2018-12-18 | 北京航天动力研究所 | Ultralow temperature high pressure double spool linkage valve |
| CN110985197A (en) * | 2018-10-02 | 2020-04-10 | 高级知识产权有限公司 | Air release valve with corrugated pipe |
-
2013
- 2013-11-29 CN CN201320778371.3U patent/CN203614761U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591551A (en) * | 2018-07-17 | 2018-09-28 | 阜宁县中洲阀门有限公司 | A kind of forged steel fuel feeding valve |
| CN108591551B (en) * | 2018-07-17 | 2023-09-19 | 江苏应流机械制造有限责任公司 | Forged steel oiling valve |
| CN109027398A (en) * | 2018-09-19 | 2018-12-18 | 北京航天动力研究所 | Ultralow temperature high pressure double spool linkage valve |
| CN109027398B (en) * | 2018-09-19 | 2024-05-03 | 北京航天动力研究所 | Ultralow temperature high pressure double-valve core linkage valve |
| CN110985197A (en) * | 2018-10-02 | 2020-04-10 | 高级知识产权有限公司 | Air release valve with corrugated pipe |
| CN110985197B (en) * | 2018-10-02 | 2022-02-25 | 高级知识产权有限公司 | Air release valve with corrugated pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |