CN105605280A - Cartridge case structure for explosion valves - Google Patents
Cartridge case structure for explosion valves Download PDFInfo
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- CN105605280A CN105605280A CN201610077575.2A CN201610077575A CN105605280A CN 105605280 A CN105605280 A CN 105605280A CN 201610077575 A CN201610077575 A CN 201610077575A CN 105605280 A CN105605280 A CN 105605280A
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- Prior art keywords
- inner panel
- cylindrical shell
- tube structure
- explosive valve
- structure according
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention relates to the technical field of explosion valves, and provides a cartridge case structure for explosion valves and aims to solve the problem of operational safety in the cartridge case laser soldering sealing process. The structure comprises a cylinder, an igniter port, a seal ring, a seal sheet, an internal plate and an external plate, wherein the seal ring is arranged on the cylinder; the seal sheet is arranged between the igniter port and the cylinder; the internal plate is arranged inside the cylinder; the external plate is arranged on one end surface of the cylinder; the internal plate and cylinder form a first charging region; the internal plate, external plate and cylinder form a second charging region; and a star-shaped groove is arranged in the internal plate. The technical scheme provided by the invention ensures the strength and sealability of the cartridge case, and can effectively reduce the gunpowder output energy loss.
Description
Technical field
The present invention relates to explosive valve technical field, particularly a kind of explosive valve medication tube structure.
Background technology
Explosive valve is the exclusive safety valve of current state-of-the-art three generations's nuclear power station, and its effect is in major accident workUnder condition, trigger explosion unit by Open valve signal, the high pressure gas that the powder burning of explosive valve unit producesBody promotes the piston movement in valve, the blind pipe of cutting-off valve latus rectum, and cooling water can enter reactor core and carry out coldBut. Explosive valve can effectively be alleviated and prevent major accident, has reduced nuclear power generating sets safety means quantity, changesKind unit safety and economy are one of technological highlights of generation Ⅲ nuclear power unit.
Explosion unit is the core component of explosive valve, to be also explosive valve different from the maximum of common nuclear safety valve itPlace, cartridge case is one of Primary Component of explosive valve, the gunpowder of its inner filling is the energy source of piston acting.
Due to explosive valve must be after nuclear power station generation major accident still can reliably working in two to three days, and coreAfter power station has an accident, explosive valve, by being subject to the boric acid steam pressure effect of the highest 470kPa, therefore, reallyProtect explosive valve and can, in normal reliable effect under accident conditions, complete set function, prevent nuclear power plant accident literLevel, needs cartridge case to have high air-tightness, and the steam after Accident prevention in environment infiltrates in cartridge case and makes gunpowderPerformance degradation.
While adopting sheet metal as cartridge case diaphragm seal, because powder grain in cartridge case is very little, at filling gunpowderIn process, very easily produce floating medicine at welding region, be difficult to remove completely, in welding process, laser direct effectSplash in the possibility of floating on medicine at the high-temperature gas that gunpowder floats on medicine or welding process produces very large. Due to fireMedicine is very sensitive to laser, heat, and when weld metal thin slice, floating medicine burn and the risk of the interior gunpowder of cartridge that ignitesHigh.
Summary of the invention
[technical problem that will solve]
The object of this invention is to provide a kind of explosive valve medication tube structure, the behaviour when solving cartridge case laser soldering sealMake safety problem.
[technical scheme]
The present invention is achieved by the following technical solutions.
The present invention relates to a kind of explosive valve medication tube structure, comprise cylindrical shell, igniter interface, sealing ring, closeEnvelope thin slice, inner panel and outside plate, described sealing ring is arranged on cylindrical shell, and described sealing sheet is arranged on igniterBetween interface and cylindrical shell, described inner panel is arranged on inner barrel, and described outside plate is arranged on an end face of cylindrical shell,Described inner panel and cylindrical shell form the first powder charge district, and described inner panel, outside plate, cylindrical shell form the second powder charge district, instituteState on inner panel and be provided with " rice " font groove.
As one preferred embodiment, the gash depth of described " rice " font groove is H/3～2*H/3,The thickness that wherein H is inner panel, the groove width of described " rice " font groove is more than or equal to 8mm.
As another preferred embodiment, described sealing ring, sealing sheet are all welded on cylindrical shell.
As another preferred embodiment, described inner panel and outside plate by laser weld on cylindrical shell, instituteWhile stating welding, the power of laser is 0.75kW～1.5kW.
As another preferred embodiment, the thickness of described inner panel is less than 0.5mm.
As another preferred embodiment, the material of described sealing ring is graphite material.
As another preferred embodiment, the tensile strength of described graphite material is not less than 4.5MPa, pressureShrinkage is not less than 41%, carbon content is greater than 99.5%, chlorinity is less than 30ppm, sulfur content is less than 200ppm.
As another preferred embodiment, the material of described cylindrical shell, sealing sheet, inner panel and outside plate is equalFor stainless steel.
As another preferred embodiment, the thickness of described sealing sheet is 0.1mm～0.35mm.
As another preferred embodiment, in described the first powder charge district, the density of gunpowder of filling is greater than theThe density of the gunpowder of filling in two powder charge districts, in described the first powder charge district, the density of the gunpowder of filling is not less than0.9g/cm3。
[beneficial effect]
The technical scheme that the present invention proposes has following beneficial effect:
Explosive valve medication tube structure provided by the invention can be by adjusting filling in the first powder charge district gunpowder withIn the first powder charge district, the gunpowder of filling can reach the object that cartridge case output pressure is regulated, in addition, and thisInvention is by design inner panel and outer panel structure and adopt laser welding process welding inner panel and outside plate, has ensuredThe intensity of cartridge case, sealing, can effectively reduce gunpowder output energy loss simultaneously, and therefore, the present invention protectsThe function of having demonstrate,proved explosive valve medication tube realizes, and can make the positive normally open valve of explosive valve.
Brief description of the drawings
The schematic diagram of the explosive valve medication tube structure that Fig. 1 provides for embodiments of the invention one.
The inner plate structure schematic diagram that Fig. 2 provides for embodiments of the invention one.
In figure, 1-sealing ring; 2-sealing sheet; 3-cylindrical shell; 4-powder charge district; 5-inner panel; 6-powder charge district; 7-Outside plate; 8-igniter interface.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below will be to concrete reality of the present inventionThe mode of executing is carried out clear, complete description.
Embodiment mono-
The schematic diagram of the explosive valve medication tube structure that Fig. 1 provides for the embodiment of the present invention one. As shown in Figure 1,Comprise cylindrical shell 3, igniter interface 8, sealing ring 1, sealing sheet 2, inner panel 5 and outside plate 7.
In the present embodiment, sealing ring 1 is welded on cylindrical shell 3, and the material of sealing ring 1 is pure graphite material,The tensile strength of graphite material is not less than 4.5MPa, and compression ratio is not less than 41%, and carbon content is greater than 99.5%,Chlorinity is less than 30ppm, and sulfur content is less than 200ppm. Only have meet these index requests particularly irradiation,The sealing of guarantee sealing ring 1 under the environment such as high temperature.
In the present embodiment, sealing sheet 2 is arranged between igniter interface 8 and cylindrical shell 3, for to ignitingDevice interface 8 seals with the junction of cylindrical shell 3, and particularly, sealing sheet is welded on cylindrical shell, sealingThe thickness of thin slice 2 between 0.1mm～0.35mm, the thickness of sealing sheet 2 too conference cause igniter withoutMethod removes to light the gunpowder in powder charge district 4 through sealing sheet 2, thereby to such an extent as to cartridge case cannot complete function makesExplosive valve lost efficacy. Need explanation, between each igniter interface and cylindrical shell 3, be provided with sealing sheet, because ofThis, igniter quantity difference, the quantity of corresponding sealing sheet is also different.
In the present embodiment, inner panel 5 is arranged on cylindrical shell 3 inside, and outside plate 7 is arranged on an end face of cylindrical shell 3,Inner panel 5 forms powder charge district 4 with cylindrical shell 3, and inner panel, outside plate, cylindrical shell form powder charge district 6, by inner panel 5Powder charge district 4 and powder charge district 6 are separated. Particularly, inner panel by laser weld on cylindrical shell, outside outside plate 7Edge is by laser weld on cylindrical shell, and when outside plate 7 and inner panel 5 are welded, the power of laser is0.75kW～1.5kW, the scope of the excessive welding of the power of laser is wide, the high probability that causes powder burning of temperatureIncrease, bring security risk, the intensity of the too small welding of power of laser is little, easily causes the sealing of cartridge caseReveal. In addition, the distance of outside plate 7 outward flanges and powder charge district 6 interior gunpowder is not less than 3mm, pad and dressThe distance of medicine district 6 interior gunpowder is larger, and the heat while having ensured welding can not lighted gunpowder 6, can ensure again simultaneouslyThereby welding energy ensures weld strength. Outside plate 7 inner side thickness are less than 1mm, can ensure like this cartridge caseIntegrality simultaneously energy loss is less. In addition, in the time that inner panel 5 is welded, pad is inner panel 5Outward flange and the contact position of cylindrical shell 3, the distance maximum of the pad in this position and gunpowder, has ensuredHeat when welding can not lighted the gunpowder in powder charge district 4, and in addition, the thickness of inner panel 5 is less than 0.5mm,If the thickness of inner panel 5 too conference is not easy to penetrate inner panel 5 after causing the powder burning in powder charge district 4, causeThe larger energy loss of gunpowder in powder charge district 4, may cause the gunpowder in powder charge district 6 to be misfired.
In the present embodiment, the density of the gunpowder in powder charge district 4 is greater than the density of the gunpowder in powder charge district 6, dressThe density of the gunpowder in medicine district 4 is not less than 0.9g/cm3, the too low medicine that easily causes of the density of the gunpowder in powder charge district 4When cylinder is subject to vibrating there is space in the place of igniter igniting, and then cause loss of ignition to cause explosive valve to lose efficacy.In addition, according to the requirement of power output, can adjust gunpowder in gunpowder and the powder charge district 6 in powder charge district 4Classification and density.
In the present embodiment, for reducing energy loss, on inner panel 5, be provided with " rice " font groove, as Fig. 2Shown in. Wherein the gash depth of " rice " font groove is H/3～2*H/3, the thickness that wherein H is inner panel, " rice "The groove width of font groove is more than or equal to 8mm. " rice " font groove can effectively ensure the interior fire in powder charge district 4The interior gunpowder of medicine and powder charge district 6 separates, and can ensure again that energy loss impact is less simultaneously.
In the present embodiment, the material of cylindrical shell 3, sealing sheet 2, inner panel 5 and outside plate 7 is stainless steel, withMeet the requirement of nuclear power environment for use.
As can be seen from the above embodiments, the explosive valve medication tube structure that the embodiment of the present invention provides can be passed throughAdjusting in the first powder charge district the gunpowder loading in the gunpowder of filling and the first powder charge district can reach cartridge case is exportedThe object that pressure regulates, in addition, the present invention is by design inner panel and outer panel structure and adopt Laser WeldingConnect technique welding inner panel and outside plate, ensured intensity, the sealing of cartridge case, can effectively reduce gunpowder simultaneouslyOutput energy loss, therefore, the present invention has ensured that the function of explosive valve medication tube realizes, and can make explosive valvePositive normally open valve.
Need explanation, the embodiment of foregoing description is a part of embodiment of the present invention, instead of all implementsExample, neither limitation of the present invention. Based on embodiments of the invention, those of ordinary skill in the art are notPay the every other embodiment obtaining under creative work prerequisite, all belong to protection scope of the present invention.
Claims (10)
1. an explosive valve medication tube structure, it is characterized in that comprising cylindrical shell, igniter interface, sealing ring,Sealing sheet, inner panel and outside plate, described sealing ring is arranged on cylindrical shell, and described sealing sheet is arranged on ignitingBetween device interface and cylindrical shell, described inner panel is arranged on inner barrel, and described outside plate is arranged on an end of cylindrical shellFace, described inner panel and cylindrical shell form the first powder charge district, and described inner panel, outside plate, cylindrical shell form the second powder charge district,On described inner panel, be provided with " rice " font groove.
2. explosive valve medication tube structure according to claim 1, is characterized in that described " rice " fontThe gash depth of groove is H/3～2*H/3, the thickness that wherein H is inner panel, described " rice " font grooveGroove width is more than or equal to 8mm.
3. explosive valve medication tube structure according to claim 1, is characterized in that described sealing ring, closeEnvelope thin slice is all welded on cylindrical shell.
4. explosive valve medication tube structure according to claim 1, is characterized in that described inner panel and outside plateBy laser weld, on cylindrical shell, when described welding, the power of laser is 0.75kW～1.5kW.
5. explosive valve medication tube structure according to claim 1, is characterized in that the thickness of described inner panelBe less than 0.5mm.
6. explosive valve medication tube structure according to claim 1, is characterized in that the material of described sealing ringMatter is graphite material.
7. explosive valve medication tube structure according to claim 6, is characterized in that described graphite materialTensile strength is not less than that 4.5MPa, compression ratio are not less than 41%, carbon content is greater than 99.5%, chlorinity is less than30ppm, sulfur content are less than 200ppm.
8. explosive valve medication tube structure according to claim 1, is characterized in that described cylindrical shell, sealingThe material of thin slice, inner panel and outside plate is stainless steel.
9. explosive valve medication tube structure according to claim 1, is characterized in that described sealing sheetThickness is 0.1mm～0.35mm.
10. explosive valve medication tube structure according to claim 1, is characterized in that described the first powder charge districtThe density of the gunpowder of interior filling is greater than the density of the gunpowder of filling in the second powder charge district, in described the first powder charge districtThe density of the gunpowder of filling is not less than 0.9g/cm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077575.2A CN105605280A (en) | 2016-02-04 | 2016-02-04 | Cartridge case structure for explosion valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077575.2A CN105605280A (en) | 2016-02-04 | 2016-02-04 | Cartridge case structure for explosion valves |
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| Publication Number | Publication Date |
|---|---|
| CN105605280A true CN105605280A (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610077575.2A Pending CN105605280A (en) | 2016-02-04 | 2016-02-04 | Cartridge case structure for explosion valves |
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| CN (1) | CN105605280A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695548A (en) * | 2017-11-25 | 2018-02-16 | 山西江淮重工有限责任公司 | Sunk type band medicine medicine cavity closure compresses spot-welding equipment and its method in cartridge case |
Citations (8)
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|---|---|---|---|---|
| KR100425623B1 (en) * | 2001-09-13 | 2005-11-08 | 주식회사 풍산 | Device for explosive the fuze and method of its manufacture |
| CN203322415U (en) * | 2013-06-24 | 2013-12-04 | 成都凯天电子股份有限公司 | Anti-arch rupture disk device for low-pressure vacuum vessel |
| CN103486306A (en) * | 2013-07-24 | 2014-01-01 | 中国兵器工业第二一三研究所 | Smoke-fire actuating cylinder for nuclear power safety valve and laser welding method thereof |
| CN103968722A (en) * | 2014-05-21 | 2014-08-06 | 中国工程物理研究院化工材料研究所 | Blasting valve igniter |
| CN203823175U (en) * | 2014-05-07 | 2014-09-10 | 徐州八方安全设备有限公司 | Metal high-temperature-shielding device special for rupture disc |
| CN104180731A (en) * | 2014-07-24 | 2014-12-03 | 中国工程物理研究院化工材料研究所 | Simulated cartridge case and methods for detecting fire transferring reliability of explosion valve drive device by simulated cartridge case |
| CN204403498U (en) * | 2014-12-26 | 2015-06-17 | 赵钱 | A kind of explosion pressure relief device |
| CN105065754A (en) * | 2015-07-21 | 2015-11-18 | 中船重工特种设备有限责任公司 | Driving device of explosion valve |
-
2016
- 2016-02-04 CN CN201610077575.2A patent/CN105605280A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100425623B1 (en) * | 2001-09-13 | 2005-11-08 | 주식회사 풍산 | Device for explosive the fuze and method of its manufacture |
| CN203322415U (en) * | 2013-06-24 | 2013-12-04 | 成都凯天电子股份有限公司 | Anti-arch rupture disk device for low-pressure vacuum vessel |
| CN103486306A (en) * | 2013-07-24 | 2014-01-01 | 中国兵器工业第二一三研究所 | Smoke-fire actuating cylinder for nuclear power safety valve and laser welding method thereof |
| CN203823175U (en) * | 2014-05-07 | 2014-09-10 | 徐州八方安全设备有限公司 | Metal high-temperature-shielding device special for rupture disc |
| CN103968722A (en) * | 2014-05-21 | 2014-08-06 | 中国工程物理研究院化工材料研究所 | Blasting valve igniter |
| CN104180731A (en) * | 2014-07-24 | 2014-12-03 | 中国工程物理研究院化工材料研究所 | Simulated cartridge case and methods for detecting fire transferring reliability of explosion valve drive device by simulated cartridge case |
| CN204403498U (en) * | 2014-12-26 | 2015-06-17 | 赵钱 | A kind of explosion pressure relief device |
| CN105065754A (en) * | 2015-07-21 | 2015-11-18 | 中船重工特种设备有限责任公司 | Driving device of explosion valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695548A (en) * | 2017-11-25 | 2018-02-16 | 山西江淮重工有限责任公司 | Sunk type band medicine medicine cavity closure compresses spot-welding equipment and its method in cartridge case |
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Application publication date: 20160525 |