CN202992217U - Bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve for satellite - Google Patents
Bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve for satellite Download PDFInfo
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- CN202992217U CN202992217U CN 201220702682 CN201220702682U CN202992217U CN 202992217 U CN202992217 U CN 202992217U CN 201220702682 CN201220702682 CN 201220702682 CN 201220702682 U CN201220702682 U CN 201220702682U CN 202992217 U CN202992217 U CN 202992217U
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- titanium alloy
- normally closed
- matrix
- closed titanium
- start valve
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Abstract
The utility model relates to a bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve for a satellite. The bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve mainly comprises a base, a blinded tube assembly, a cutter, anti-burning rings, sealing rings, a screwed plug, a sealing piece, a plug and a welding piece, wherein the cutter is arranged in an inner cavity of the base and fittingly sealed with the base via a sealing assembly, a high-pressure high-temperature gas cavity, a cutter passageway and a cutting chip cavity are sequentially formed in the inner cavity of the base, and the blinded tube assembly is fixed on the base and penetrates through the base and the cutter passageway. The cutter, after operation, forms conical surface tight-wedging sealing with the base, reliability and durability in sealing of a valve after operation are improved, and long-term storage of mediums is facilitated.
Description
Technical field
The satellite that the utility model relates to for the different parts of satellite booster subsystem, is controlled opening of helium and propellant agent with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve.
Background technique
Powder gas start valve is one of automation assembly important on space flight model sorts of systems, plays the effect that convection cell is controlled in system.Powder gas start valve is that the high-pressure gas that utilizes powder burning to produce moves, have good airproof performance, size is little, quality is light, fast response time and self be with as long as very the small-pulse effect power supply just can be made the characteristics such as the dynamic high-pressure energy, so be widely used on liquid propellant rocket engine.At present, in all kinds of space flight model system of China, powder gas start valve is multiplex in the workplace of isolation, closing function to working medium.But existing powder gas start valve exists, and quality is large, sealing and the not high technical problem of stability.
Summary of the invention
Have in order to solve existing powder gas start valve that quality is large, sealing and the not high technical problem of stability, the utility model provides a kind of satellite with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, and the utility model is a kind ofly to have highly reliable, low flow resistance, adapt to the long-term satellite of storing with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve.
The technical solution that the utility model is taked is:
Satellite is with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, comprise matrix, blind pipe assembly, cutting knife, black box, described cutting knife be arranged in the inner chamber of matrix and with matrix by the black box fitted seal, described matrix inner chamber forms high pressure-temperature combustion gas chamber, cutting knife passage and smear metal chamber successively, described blind pipe assembly is fixed on matrix and vertically runs through matrix and the cutting knife passage
Described blind pipe assembly comprises connecting head, first passage and second channel, one end of described connecting head is connected with first passage, the other end of described connecting head is connected with second channel, the center of described connecting head is provided with annular through groove, the bottom of described annular through groove is thin walled tube, the diameter of described thin walled tube is greater than the internal diameter of first passage, and described first passage and second channel cut off by thin walled tube
Described cutting knife comprises large footpath driving section, the path cut length that is fixedly connected sequentially and the via that is arranged on the path cut length, the other end that described large footpath drives section is high pressure-temperature combustion gas chamber, the other end of described path cut length is over against annular through groove, described large footpath drives section and upward is provided with sealing cone in the joint with the path cut length
Be provided with the spacing conical surface on the inwall of described matrix, the distance between the spacing conical surface and sealing cone is equal to or less than the distance of via and thin walled tube, and the described spacing conical surface and sealing cone form conical surface seal.
The tapering of the spacing conical surface is less than the tapering of sealing cone.
Above-mentioned black box is seal ring, and described ring set drives on section in large footpath.
Above-mentioned black box is two seal rings, and two all are sleeved on large footpath and drive on section.
Also comprise the anti-ring that burns, described anti-burning ring set is contained in large footpath, and to drive section upper and near high pressure-temperature combustion gas chamber.
Also comprise the anti-ring that burns of twice, twice are anti-burns ring and is sleeved on successively large footpath to drive section upper and near high pressure-temperature combustion gas chamber.
Above-mentioned matrix and blind pipe inter-module adopt electron beam welding to fix.
Leak hunting aperture on above-mentioned matrix adopts welded seal.
The utility model beneficial effect compared with prior art is:
1, cutting knife of the present utility model forms conical surface wedging sealing with matrix 1 after action, improves sealing reliability and the resistance to pressure of valve after action, is conducive to the long-term storage with medium.
2, the whole metals of the utility model powder gas start valve adopt the titanium alloy of different performances, have not only alleviated quality of product, and are conducive to the welding of cutting knife and matrix wedging, matrix and blind pipe, weld tabs.
3, the whole interfaces of the utility model adopt welded structure, have improved the reliability of sealing.
4, the satellite that relates to of the utility model with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, is that latus rectum is little for a kind of quality of satellite booster subsystem development is light
The change of pressure scope large (2.2 ~ 30MPa), the leak-down rate before and after start is less than 1 * 10
-4The high reliability of Pa.L/s, high leak tightness powder gas start valve have been filled up the blank of this class formation and the normally closed powder gas start of latus rectum valve.
Description of drawings
Fig. 1 is the utility model satellite with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve start pre-structure schematic diagram;
Fig. 2 be the utility model satellite with the start of the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve after structural representation;
Wherein reference character is: 1-matrix, 10-high pressure-temperature combustion gas chamber, 11-cutting knife passage, the spacing conical surface of 12-, 13-smear metal chamber, 2-blind pipe assembly, 21-connecting head, 22-first passage, the 23-second channel, 24-annular through groove, 25-thin walled tube, 3-cutting knife, the large footpath of 31-drives section, 32-path cut length, 33-via, 34-sealing cone, anti-ring, 5-seal ring, the 6-screw plug of burning of 4-, the 7-diaphragm seal, 8-plug, 9-weld tabs.
Embodiment
As shown in Figure 1, satellite of the present utility model is with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, mainly comprise matrix 1, blind pipe assembly 2, cutting knife 3, anti-ring 4, seal ring 5, screw plug 6, diaphragm seal 7, plug 8, the weld tabs 9 of burning, cutting knife is arranged in the inner chamber of matrix with matrix by the black box fitted seal, the matrix inner chamber forms high pressure-temperature combustion gas chamber 10, cutting knife passage 11 and smear metal chamber 13 successively, blind pipe assembly 2 is fixed on matrix and runs through matrix and the cutting knife passage
Wherein blind pipe assembly 2 comprises connecting head 21, first passage 22 and second channel 23, one end of connecting head 21 is connected with first passage 22, the other end of connecting head 21 is connected with second channel 23, the center of connecting head 21 is provided with annular through groove 24, the bottom of annular through groove 24 is thin walled tube 25, and the diameter of thin walled tube 25 is greater than the internal diameter of first passage; First passage 22 and second channel 23 cut off by thin walled tube 25, and the height of thin walled tube is the width of annular through groove namely, less than or equal to the maximum diameter of path cut length 32.The thickness of thin walled tube can be broken off with the fingers and thumb disconnected by cutting knife 3.
Working procedure of the present utility model: blind pipe assembly 2 first is screwed in matrix 1, then carries out electron beam welding on the exterior edge face of blind pipe assembly and matrix, guarantees that matrix 1 and blind pipe 2 connect and the reliability of sealing.Blind pipe assembly 2 adopts the bilateral isolation structure of integrated type, guarantees that powder gas start valve can bidirectional bearing.Blind pipe assembly 2 is cut tear and is provided with annular through groove and realizes thin walled structures, guarantees that the blind pipe assembly cuts brokenly from this.Before work, 2 pairs of media of blind pipe assembly play buffer action, seal ring 5 is fixed cutting knife 3 by decrement, prevent that it from moving, after work, combustion gas acts on cutting knife 3 front ends, cutting knife 3 is the mobile thin walled tube of cutting unblinding pipe assembly 2 rapidly, and medium runner is opened, after the sealing cone of cutting knife 3 touches the matrix 1 spacing conical surface of inner chamber, the spacing conical surface of wedging matrix 1 under the effect of inertia and gaseous-pressure, sealing is reliably locked and form to cutting knife 3.For preventing the medium external leakage, matrix 1 and blind pipe 2 adopt welded seal.
Be the flame ablation seal ring of avoiding gunpowder explosion to produce, cause that sealability descends, therefore, adopted the sealing configuration of anti-burning ring+seal ring when design, can play good anti-burning sealing effect.
For preventing seal failure between cutting knife and matrix, matrix 1 leak hunting aperture place adopts the seal form of rubber gasket 7 and weld tabs 9 and matrix 1 laser bonding to guarantee that this place plays the redundancy seal action.
For cutting brokenly of cutting knife wedging and blind pipe assembly, cutting knife 3 and matrix 1 adopt the titanium alloy material of different hardness, and cutting knife 3 and matrix 1 conical surface should have the reliability that certain fit angle guarantees cutting knife 3 and matrix 1 wedging sealing, and the tapering of the general spacing conical surface is less than the tapering of sealing cone.Guarantee to form the conical surface wedging type sealing of " metal-metal " reliably, reach powder gas start valve and open the reliable purpose of rear cone sealing.
Claims (8)
1. satellite is with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, it is characterized in that: comprise matrix (1), blind pipe assembly (2), cutting knife (3), black box, described cutting knife be arranged in the inner chamber of matrix and with matrix by the black box fitted seal, described matrix inner chamber forms high pressure-temperature combustion gas chamber (10), cutting knife passage (11) and smear metal chamber (13) successively, described blind pipe assembly (2) is fixed on matrix and vertically runs through matrix and the cutting knife passage
Described blind pipe assembly (2) comprises connector (21), first passage (22) and second channel (23), one end of described connector (21) is connected with first passage (22), the other end of described connector (21) is connected with second channel (23), the center of described connector (21) is provided with annular through groove (24), the bottom of described annular through groove (24) is light-wall pipe (25), the diameter of described light-wall pipe (25) is greater than the internal diameter of first passage, described first passage (22) and second channel (23) cut off by light-wall pipe (25)
Described cutting knife (3) comprises large footpath driving section (31), the path cut length (32) that is fixedly connected sequentially and the via (33) that is arranged on the path cut length, the other end that described large footpath drives section (31) is high pressure-temperature combustion gas chamber (10), the other end of described path cut length (32) is over against annular through groove (24), described large footpath drives section (31) and upward is provided with sealing cone (34) in the joint with path cut length (32)
Be provided with the spacing conical surface (12) on the inwall of described matrix (1), the distance between the spacing conical surface (12) and sealing cone (34) is equal to or less than the distance of via and thin walled tube, and the described spacing conical surface and sealing cone form conical surface seal.
2. satellite according to claim 1 is with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, and it is characterized in that: the tapering of the spacing conical surface is less than the tapering of sealing cone.
3. satellite according to claim 1 and 2 is with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, and it is characterized in that: described black box is seal ring, and described ring set drives on section in large footpath.
4. satellite according to claim 1 and 2 is with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, and it is characterized in that: described black box is two seal rings, and two all are sleeved on large footpath and drive on section.
5. satellite according to claim 4 with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, is characterized in that: also comprise the anti-ring that burns, described anti-burning ring set is contained in large footpath, and to drive section upper and near high pressure-temperature combustion gas chamber.
6. satellite according to claim 4 with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, is characterized in that: also comprise the anti-ring that burns of twice, twice are anti-burns ring and is sleeved on successively large footpath to drive section upper and near high pressure-temperature combustion gas chamber.
7. satellite according to claim 6 with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, is characterized in that: adopt electron beam welding to fix between described matrix (1) and blind pipe assembly (2).
8. satellite according to claim 7 with the normally closed titanium alloy powder gas of the bilateral formula of cutting brokenly start valve, is characterized in that: the leak hunting aperture employing welded seal on described matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702682 CN202992217U (en) | 2012-12-18 | 2012-12-18 | Bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve for satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702682 CN202992217U (en) | 2012-12-18 | 2012-12-18 | Bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve for satellite |
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| Publication Number | Publication Date |
|---|---|
| CN202992217U true CN202992217U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220702682 Expired - Lifetime CN202992217U (en) | 2012-12-18 | 2012-12-18 | Bilateral lancing-type normally closed titanium alloy gunpowder gas actuated valve for satellite |
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| Country | Link |
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| CN (1) | CN202992217U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032592A (en) * | 2012-12-18 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Satellite-used bilateral shearing-type normally-closed titanium alloy gunpowder fuel gas actuated valve |
| CN104565800A (en) * | 2014-12-31 | 2015-04-29 | 上海空间推进研究所 | High-pressure gas bottle as well as gas discharge structure and gas discharge method thereof |
| CN110762239A (en) * | 2019-11-21 | 2020-02-07 | 西安航天动力研究所 | High-pressure unloading type gunpowder gas actuated valve |
-
2012
- 2012-12-18 CN CN 201220702682 patent/CN202992217U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032592A (en) * | 2012-12-18 | 2013-04-10 | 中国航天科技集团公司第六研究院第十一研究所 | Satellite-used bilateral shearing-type normally-closed titanium alloy gunpowder fuel gas actuated valve |
| CN104565800A (en) * | 2014-12-31 | 2015-04-29 | 上海空间推进研究所 | High-pressure gas bottle as well as gas discharge structure and gas discharge method thereof |
| CN104565800B (en) * | 2014-12-31 | 2016-08-17 | 上海空间推进研究所 | Gas cylinder and deflation structure thereof and bleed method |
| CN110762239A (en) * | 2019-11-21 | 2020-02-07 | 西安航天动力研究所 | High-pressure unloading type gunpowder gas actuated valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |