CN102121811A - Pressure excitation type twin-spark firing explosion device - Google Patents
Pressure excitation type twin-spark firing explosion device Download PDFInfo
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- CN102121811A CN102121811A CN2010105803130A CN201010580313A CN102121811A CN 102121811 A CN102121811 A CN 102121811A CN 2010105803130 A CN2010105803130 A CN 2010105803130A CN 201010580313 A CN201010580313 A CN 201010580313A CN 102121811 A CN102121811 A CN 102121811A
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Abstract
The invention relates to a pressure excitation type twin-spark firing explosion device, which comprise an outer sleeve, an upper pressure cover 1 and a lower end cover 10, wherein the upper pressure cover 1 and the lower end cover 10 are arranged on the upper end lower end faces of the outer sleeve respectively; a piston component is arranged in the outer sleeve; two firing pin components 9 are arranged on the lower end cover of the outer sleeve; a firing cover 8 is arranged between the piston component and the firing pin components; the lower tip of a piston and the upper tips of firing pins are all semispherical so as to form rolling contact with the firing cover; and when the piston impacts the firing cover, the firing cover can horizontally swing to impact the two firing pins to make the two firing pins function at the same time, so simultaneous firing is ensured. Due to the adoption of a redundancy design, the functional reliability of the pressure excitation type twin-spark firing explosion device is improved, and the success rate of firing explosion is remarkably increased.
Description
Technical field
The present invention relates to a kind of pressure excitation type ignition and detonation device, relate in particular to the two igniting priming devices of getting angry of a kind of pressure excitation type.Be mainly used in the ignition and detonation system of oil gas well mining process.
Background technology
Along with the continuous development of priming system technology, more and more higher to the reliability and the safety in utilization requirement of its ignition and detonation device.Priming system is the activating system of weapons and ammunitions and civil explosive material, so require its function reliability height.In prior art, common pressure excitation type ignition and detonation device generally has only a firing pin ignition assembly.When upper press cover was exerted pressure, upper press cover was passed to piston with pressure, and the pressure-bearing pin is cut off simultaneously, and piston moves downward, and clashes into firing pin then, made the ignition assembly get angry.This needle force formula ignition and detonation device of clicking has only one to get angry assembly, if should get angry ignition charge or detonator generation problem in assembly, and ignition and detonation reliably just.Therefore, its ignition reliability is difficult to adapt to higher requirement.For improving its ignition reliability, advocate at present and adopt Redundancy Design, promptly adopt two covers or overlap ignition system more to act on simultaneously.If but Redundancy Design is used for this pressure excitation type ignition and detonation device, and will run into the technical problem of a maximum, promptly how piston head can accurately strike two covers or many cover ignition assemblies reliably and it is acted on simultaneously.At present, yet there are no the pertinent literature report that Redundancy Design is applied to this pressure excitation type ignition and detonation device.
Summary of the invention
The objective of the invention is at the problem in the prior art, provide a kind of pressure excitation type two igniting priming devices of getting angry, Redundancy Design is applied in the pressure excitation type ignition and detonation device well, improve the igniting reliability of this kind device.
For achieving the above object, technical scheme of the present invention is as follows:
It comprises an outer tube, is provided with a upper press cover at this outer sleeve upper face, and is provided with a piston component that comprises that piston bush and piston constitute in this outer tube, and described piston is fixed on the piston bush internal upper part by the pressure-bearing pin; Described piston component is fixed on outer tube top by a undergauge step of upper press cover and outer sleeve inner wall, be fixedly connected with a bottom end cover in the lower surface of outer tube, and firing pin ignition assembly is housed on this bottom end cover, its special character is: described piston lower end has hemispherical and impacts head, two firing pins ignition assemblies are housed on the described bottom end cover, the firing pin upper end that described firing pin is got angry in the assembly is a hemispherical, is provided with one and hits lid between piston component lower end and two firing pin ignition assemblies.
Further improved technical scheme of the present invention is as follows:
The described circumferential side wall that hits lid is an arc surface shape.
The periphery wall middle part of described piston is provided with an inner groovy that is used to the power of reducing friction.
The present invention's characteristics compared with the prior art are as follows:
One, the present invention adopts two cover ignition assemblies, and can guarantee that two cover ignition assemblies act on simultaneously, reaches dual ignition, has improved the function reliability of this device, makes the ignition and detonation success rate obviously improve.
Two, piston lower end of the present invention and firing pin upper end all adopt hemispherical design, and have increased and hit lid.When piston slap hits when covering, hitting lid can free horizontal hunting and strike two firing pins, and two firing pins are acted on simultaneously, has guaranteed to get angry simultaneously.
Three, to hit the circumference side of lid be that circular arc is planar in the present invention.When piston slap hits when covering, hitting lid can descend along outer sleeve inner wall smoothly, further improve function reliability.
Four, the inner groovy that is provided with on the circumferential wall of piston of the present invention can reduce frictional force between piston and the piston bush, and piston is glided under the effect of pressure smoothly, has improved the sensitivity of action.
Description of drawings
Accompanying drawing, overall structure schematic diagram of the present invention
The specific embodiment
Referring to accompanying drawing, it comprises an outer tube 5, is provided with a upper press cover 1 in the upper surface of this outer tube, is provided with a piston component in this outer tube, and this piston component comprises piston (2) and piston bush (3); Described piston 2 is installed in the piston bush 3 by sealing ring 7 sealing, and is fixed on top in the piston bush 3 by pressure-bearing pin 4; The lower end of described piston 2 has hemispherical and impacts a 2-2; The undergauge step of described piston bush 3 by upper press cover 1 and outer sleeve inner wall is fixed on the top in the outer tube, and be installed in the outer tube 5 by sealing ring 7 ' sealing, be provided with a packing ring 6 in the lower end of piston bush 3, this packing ring can play position-limiting action to the stroke of piston 2.Lower end at outer tube 5 is fixedly connected with a bottom end cover 10 by screw, and two firing pins ignition assemblies 9 that structure is identical are housed on this bottom end cover 10.This firing pin ignition assembly comprises firing pin cover 9-3, is contained in firing pin 9-1 in the firing pin cover and the igniter cap 9-4 that is contained in the firing pin lower end.Described firing pin 9-1 is fixed on the firing pin cover 9-3 by safety pin 9-2, and the upper end of firing pin 9-1 is a hemispherical.The lower end of described igniter cap 9-4 can load point gunpowder 11, also detonator can be installed, the load point gunpowder, this device is as igniter, and is capsulated, and this device is used as priming device.For guaranteeing that two firing pins get angry assemblies and get angry simultaneously, between piston bush lower surface and firing pin upper end, be provided with one and hit and cover 8.Hit lid and can descend more smoothly and strike two firing pins simultaneously for making, describedly hit that to cover 8 circumferential side wall be arc surface shape, like this, can prevent to be subjected to when hitting the lid swing descends the jam of outer sleeve inner wall.For reducing the frictional force that piston 2 moves down, be provided with an inner groovy 2-1 at the periphery wall middle part of described piston 2, like this, can reduce the contact area of piston outer tube wall and piston bush inner tube wall, the frictional force of piston is reduced greatly.
The operation principle of this device is: when loam cake 1 is applied certain pressure, piston 2 upper ends receive the excitation energy that comes from the borehole pressure transfer mode, pressure-bearing pin 4 is cut off under pressure simultaneously, and then piston 2 moves downward rapidly along piston bush 3 inwalls, hits and covers 8, hit and cover 8 and freely swing, and striking two firing pin 9-1, firing pin 9-1 is stressed and press down, and safety pin 9-2 is cut off, then firing pin 9-1 moves down and percussion cap 9-4 rapidly, and two igniter caps are got angry simultaneously.Point of ignition gunpowder or detonating primer after getting angry carry out subordinate then and pass fire or propagation of explosion sequence.Wherein hit to cover between 8 upper surface and the piston head 2-2 and hit to cover to be to roll between 8 lower surface and the firing pin and contact, can guarantee like this to hit and cover 8 after being subjected to piston slap, freely swing and strike two firing pin 9-1 simultaneously, to guarantee pair ignition.
Claims (3)
1. two igniting priming devices of getting angry of a pressure excitation type, it comprises an outer tube (5), be provided with a upper press cover (1) at this outer sleeve upper face, and be provided with a piston component that comprises that piston bush (3) and piston (2) constitute in this outer tube, described piston (2) is fixed on the piston bush internal upper part by pressure-bearing pin (4); Described piston component is fixed on outer tube top by a undergauge step of upper press cover (1) and outer sleeve inner wall, be fixedly connected with a bottom end cover (10) in the lower surface of outer tube, and firing pin ignition assembly (9) is housed on this bottom end cover, it is characterized in that: described piston (2) lower end has hemispherical and impacts head (2-2), two firing pins ignition assemblies are housed on the described bottom end cover (10), firing pin (9-1) upper end that described firing pin is got angry in the assembly is a hemispherical, is provided with one and hits lid (8) between piston component lower end and two firing pin ignition assemblies.
2. the two igniting priming devices of getting angry of pressure excitation type according to claim 1, it is characterized in that: the described circumferential side wall that hits lid (8) is an arc surface shape.
3. the two igniting priming devices of getting angry of pressure excitation type according to claim 1 and 2, it is characterized in that: the periphery wall middle part of described piston (2) is provided with an inner groovy (2-1) that is used to the power of reducing friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105803130A CN102121811A (en) | 2010-12-07 | 2010-12-07 | Pressure excitation type twin-spark firing explosion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105803130A CN102121811A (en) | 2010-12-07 | 2010-12-07 | Pressure excitation type twin-spark firing explosion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102121811A true CN102121811A (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105803130A Pending CN102121811A (en) | 2010-12-07 | 2010-12-07 | Pressure excitation type twin-spark firing explosion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102121811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091700A (en) * | 2014-07-18 | 2014-10-08 | 国家电网公司 | Detonation type operating mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116775U (en) * | 1991-11-16 | 1992-09-23 | 西安石油学院 | Break switch impingement first fire |
| US5603384A (en) * | 1995-10-11 | 1997-02-18 | Western Atlas International, Inc. | Universal perforating gun firing head |
| RU2274734C1 (en) * | 2004-10-19 | 2006-04-20 | Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" (ФГУП "РФЯЦ - ВНИИЭФ") | Borehole equipment fuse |
| CN101270645A (en) * | 2008-05-16 | 2008-09-24 | 中国兵器工业第二一三研究所 | Pressure excitation type detonating device capable of displaying starting signal |
| CN201531257U (en) * | 2009-11-24 | 2010-07-21 | 中国航天科技集团公司川南机械厂 | Mechanical tapping explosion initiating device |
| CN201909589U (en) * | 2010-12-07 | 2011-07-27 | 中国兵器工业第二一三研究所 | Pressure excitation type twin-spark ignition priming device |
-
2010
- 2010-12-07 CN CN2010105803130A patent/CN102121811A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2116775U (en) * | 1991-11-16 | 1992-09-23 | 西安石油学院 | Break switch impingement first fire |
| US5603384A (en) * | 1995-10-11 | 1997-02-18 | Western Atlas International, Inc. | Universal perforating gun firing head |
| RU2274734C1 (en) * | 2004-10-19 | 2006-04-20 | Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" (ФГУП "РФЯЦ - ВНИИЭФ") | Borehole equipment fuse |
| CN101270645A (en) * | 2008-05-16 | 2008-09-24 | 中国兵器工业第二一三研究所 | Pressure excitation type detonating device capable of displaying starting signal |
| CN201531257U (en) * | 2009-11-24 | 2010-07-21 | 中国航天科技集团公司川南机械厂 | Mechanical tapping explosion initiating device |
| CN201909589U (en) * | 2010-12-07 | 2011-07-27 | 中国兵器工业第二一三研究所 | Pressure excitation type twin-spark ignition priming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091700A (en) * | 2014-07-18 | 2014-10-08 | 国家电网公司 | Detonation type operating mechanism |
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Application publication date: 20110713 |