CN2450541Y - Impact wave type igniting implement - Google Patents
Impact wave type igniting implement Download PDFInfo
- Publication number
- CN2450541Y CN2450541Y CN 00261694 CN00261694U CN2450541Y CN 2450541 Y CN2450541 Y CN 2450541Y CN 00261694 CN00261694 CN 00261694 CN 00261694 U CN00261694 U CN 00261694U CN 2450541 Y CN2450541 Y CN 2450541Y
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- igniting
- powder
- ignition charge
- implement
- primacord
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Abstract
The utility model relates to an impact wave type igniting implement which solves the problems of high accuracy requirement and high price existing in the prior igniting implement of a partition board and designs the igniting implement of using the partition board to replace the air isolation. The utility model needs to overcome the problems of impact wave attenuation and liquid leakage. The utility model adopts a low detonation velocity detonating fuse and the impact wave controlling the gaps attenuation, adopts a high pressure chamber formed by the explosion of a high detonation velocity detonating fuse and selects the quick ignition charge to overcome the problem of liquid leakage. The utility model has the advantages of low price for being only 10 percents of the igniting implement of the partition board, high safety and reliability, and is suitable for oilfield source bombs and composite perforation and fracturing devices.
Description
The utility model relates to and detonates and light a fire and use priming system, is mainly used in the shock wave formula igniter of hypocentrum cartridge and composite gun perforation, fracturing device, and this igniter is made up of housing and igniting powder charge etc.
Black powder, propellant powder or firework medicament be can light after igniter excites, electric igniter, dividing plate igniter and inertia igniter etc. are divided into by mode of excitation.The utility model is identical with dividing plate igniter mode of excitation, and the effect of dividing plate igniter is that burning is changeed in detonation, by the unstable pilot process that changes of a kind of unstable variation the, especially shock velocity between explosive substance steady detonation and the burning.Being embodied in of this variation: the shock wave by thousands of meters of per seconds begins, final shock wave point of ignition gunpowder with hundreds of meters of per seconds.Second phase nineteen ninety-five " priming system ", people such as Chen Zhiwei have delivered " design of time-delay through-bulkhead initiator " paper, setting forth through-bulkhead initiator is to transmit shock wave energy by metal partion (metp), dividing plate is the part of housing, dividing plate can bear higher detonation pressure and not destroyed, therefore can make the assembly sealing, prevents the gas reverse leakage, thereby improve the security of armament systems greatly, it is widely used as the igniter of solid propellant rocket.But time-delay through-bulkhead initiator weak point, the control of block board thickness dimensional tolerance is strict, requirement on machining accuracy is high, cost is high, and involving the combustion pressure lower clapboard in impact must not have damage, and the thickness of dividing plate and material directly have influence on the reliability of igniting.
The purpose of this utility model is in order to overcome disadvantages of background technology, and it is low to design a kind of handling ease cost, the safe and reliable more shock wave formula igniter that can satisfy the oil field instructions for use again.
The utility model to achieve these goals, design and a kind ofly adopt air insulated attenuating shock wave point of ignition gunpowder without the metal partion (metp) attenuating shock wave, so just bring technical difficult point: the effective decay of shock wave that first air insulated can not make alms giver's powder charge produce causes detonation easily, do not reach combustion purpose; It two is not have metal partion (metp), and system can not the seal fluid reverse leakage.In order to solve first difficult point, at first high speed detonation shock wave is converted to the low velocity detonation shock wave, again the low velocity detonation shock wave is converted to detonation, detonation is converted to burning the most at last.Being converted to the low velocity detonation shock wave by high speed detonation shock wave adopts the primacord of different-diameter, different explosive to realize; Be converted to detonation by the low velocity detonation shock wave, the distance and the space of low explosion velocity primacord end of control and ignition charge end face, just the gap of air insulated guarantees that shock wave can only cause the detonation on ignition charge part or top layer; Be converted to burning by detonation, adopt multi-level ignition charge powder charge.The utility model uses in the igniting of composite gun perforation, fracturing device in oil well, because oil water mixture is with the high voltage style reverse leakage, this is second difficult point that needs solution, adopt high explosion velocity primacord, except igniting low explosion velocity primacord, high explosion velocity primacord produces high temperature, high pressure detonation wave, forms local high temperature, high pressure chest, stop profit to flow into, obtain the time of instantaneous ignition.Select suitable ignition charge in addition, its detonation is changeed be controlled at the microsecond level burning time, in case after powder charge was lighted, moment produced high temperature and high pressure gas, forward presses to it and perforating gun sports association connects the road.Under the high temperature and high pressure gas effect that burning produces, the oil water mixture reverse leakage, is blocked on outside shock wave formula igniter and the fracturing device in the time at certain intervals, can not exert an influence to burning.
The utility model is made up of housing and igniting powder charge, is characterized in that housing is by ladder stopple 3, body 4 with contain centre bore bottom 10 and constitute; The igniting powder charge is by ignition charge (6,9,11), delay powder 7, black powder 8 constitutes,, there is centre bore at 5 ends of Can, in the Can 5 respectively successively multilayer black powder 8 is housed, delay powder 7 and ignition charge 6, Can 5 is contained in the body 4, ladder stopple 3 centre bores are equipped with high explosion velocity primacord 1 and low explosion velocity primacord 2, both end faces are connected, ladder stopple 3 is connected with body 4 top tight fits, low explosion velocity primacord 2 stretches in the Can 5, keep the gap with the ignition charge end face, body 4 bottoms are equipped with the ignition charge 9 of annular and are threaded with containing centre bore bottom 10, contain the ignition charge 11 of centre bore bottom 10 bonding annulars.
Case material of the present utility model selects for use shock wave to have the phenolic resins or the metallic aluminium of good absorption and fade performance.
The utility model description of drawings is as follows:
Accompanying drawing 1 is a shock wave formula igniter profile
The utility model advantage is as follows:
1. processing technology is simple, and cost is low, and price only has about 10% of military dividing plate igniter.
2. multi-level ignition charge guarantees to ignite, detonation can both normal ignition, lights a fire than dividing plate
The tool safety and reliability.
3. satisfy the oil field instructions for use, the misfire phenomenon never takes place.
Embodiment: 1 the utility model is implemented the manufacturing of 1.1 housings with reference to accompanying drawing 1
The igniting powder charge is made of ignition charge (6,9,11), delay powder 7, black powder 8.Ignition charge (6,9,11) is by 15%Al powder, 64%KclO
4, 15%Mg powder, 6% phenol-formaldehyde resin powder form.Delay powder 7 is by 60%PbCrO
4, 4%Fe powder, 30%Si powder, 6%Cr powder form.Ignition charge (6,9,11) and delay powder 7 are pressed the proportioning weighing in making after pulverizing, screening, drying.Mix with the granulation of guncotton acetone, screening after drying, it is bonding agglomerating to add acetone, forcing the back oven dry of sieving ignition charge 6 and delay powder 7 finished products.Ignition charge (9,11) is pressed into annular.Black powder 8 is selected conventional No. 3 small-grain black powders of finished product for use, and black powder 8 is by KNO
3, wood powder and S form.1.3 the manufacturing of Can
Can 5 generally selects for use ambrose alloy, stainless steel or metallic aluminum material to make.It is Can 5 materials that shock wave formula igniter is selected stainless steel for use, and stainless steel has good extending performance, tensile strength and yield point height, is easy to press-fit advantages such as firer's medicament.During Can 5 is made, must be through rolling material, stretching, punching, technology such as calendering and otch repeatedly, at last at Can 5 bottom drill centers.1.4 primacord is selected
High explosion velocity primacord 1 selects that initiating ability is strong for use, detonation sensitivity and explosion velocity height, explosion transfer performance is good, diameter is bigger primacord.Low explosion velocity primacord 2 is selected the primacord that detonation sensitivity is moderate, explosion transfer performance good, explosion velocity is low and diameter is little for use.High explosion velocity primacord 1 and low explosion velocity primacord 2 should be selected geology, oil field rubber primacord, plastic detonating cord or metal tube mild detonating fuze commonly used for use.What shock wave formula igniter was selected for use is the metal tube mild detonating fuze.1.5 assembling
At first will hang down explosion velocity primacord 2 and insert in 3 times stomidiums of ladder stopple, its termination must be concordant with ladder stopple 3 shoulder hole faying faces.Secondly high explosion velocity primacord 1 is inserted in ladder stopple 3 upper end holes, its termination palpus and plane, low explosion velocity primacord 2 termination are connected.Then respectively successively multilayer black powder 8, delay powder 7 and ignition charge 6 are pressed into Can 5 bottoms, Can 5 is packed in the body 4, the ignition charge 9 of annular is packed in the body 4, ignition charge 9 must be close to the bottom of Can 5, the ladder stopple 3 that will be equipped with high explosion velocity primacord 1 and low explosion velocity primacord 2 again is connected with body 4 top tight fits, low explosion velocity primacord 2 is stretched in the Can 5 keep the gap, will contain centre bore bottom 10 to be threaded in body 4 bottoms with ignition charge 6 end faces.Ignition charge 11 usefulness epoxy glues with annular stick at the lower end that contains centre bore bottom 10 at last, and the centre bore of ignition charge 11 is aligned with the center that contains centre bore bottom 10.
The utility model 1998 is cooperated with 843 factories, it is the focus body of main charge that 843 factories provide with TNT, and 213 provide shock wave formula igniter 50 covers, after ground experiment is successful fully, offer Dagang Oilfield again and test, safe and reliablely satisfy the oil field instructions for use fully through more than 10 oil wells.2 the utility model are substantially the same manner as Example 1, and different is to select metallic aluminum material for use, and the detonation wave shock wave is had good absorption and fade performance, and the utility model is applied to composite gun perforation, fracturing device better effects if.
Claims (2)
1. a shock wave formula igniter is made up of housing and igniting powder charge, it is characterized in that housing is by ladder stopple (3), body (4) with contain centre bore bottom (10) formation; The igniting powder charge is by ignition charge (6,9,11), delay powder (7), black powder (8) constitutes,, there is centre bore at Can (5) end, in the Can (5) respectively successively multilayer black powder (8) is housed, delay powder (7) and ignition charge (6), Can (5) is contained in the body (4), ladder stopple (3) centre bore is equipped with high explosion velocity primacord (1) and low explosion velocity primacord (2), both end faces are connected, ladder stopple (3) is connected with body (4) top tight fit, low explosion velocity primacord (2) stretches in the Can (5) and keeps the gap with ignition charge (6) end face, body 4 bottoms are equipped with the ignition charge (9) of annular and are threaded with containing centre bore bottom (10), contain the ignition charge (11) of centre bore bottom (10) bonding annular.
2. igniter according to claim 1 is characterized in that the material selection phenolic resins or the metallic aluminium of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261694 CN2450541Y (en) | 2000-11-15 | 2000-11-15 | Impact wave type igniting implement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261694 CN2450541Y (en) | 2000-11-15 | 2000-11-15 | Impact wave type igniting implement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450541Y true CN2450541Y (en) | 2001-09-26 |
Family
ID=33617132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00261694 Expired - Fee Related CN2450541Y (en) | 2000-11-15 | 2000-11-15 | Impact wave type igniting implement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450541Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100501304C (en) * | 2005-06-03 | 2009-06-17 | 中国科学院力学研究所 | Flame igniter for igniting condensed fire detonator under condition of high pressure |
| CN111734526A (en) * | 2020-07-09 | 2020-10-02 | 南京理工大学 | Firer actuator adopting low-detonation-velocity explosive charging to reduce subsidiary impact and pollution |
| CN112361378A (en) * | 2020-11-15 | 2021-02-12 | 西安长峰机电研究所 | Miniaturized safety mechanism |
-
2000
- 2000-11-15 CN CN 00261694 patent/CN2450541Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100501304C (en) * | 2005-06-03 | 2009-06-17 | 中国科学院力学研究所 | Flame igniter for igniting condensed fire detonator under condition of high pressure |
| CN111734526A (en) * | 2020-07-09 | 2020-10-02 | 南京理工大学 | Firer actuator adopting low-detonation-velocity explosive charging to reduce subsidiary impact and pollution |
| CN111734526B (en) * | 2020-07-09 | 2022-01-28 | 南京理工大学 | Firer actuator adopting low-detonation-velocity explosive charging to reduce subsidiary impact and pollution |
| CN112361378A (en) * | 2020-11-15 | 2021-02-12 | 西安长峰机电研究所 | Miniaturized safety mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |