CN2674396Y - Combined gunpowder delay mechanism - Google Patents
Combined gunpowder delay mechanism Download PDFInfo
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- CN2674396Y CN2674396Y CN 200420041488 CN200420041488U CN2674396Y CN 2674396 Y CN2674396 Y CN 2674396Y CN 200420041488 CN200420041488 CN 200420041488 CN 200420041488 U CN200420041488 U CN 200420041488U CN 2674396 Y CN2674396 Y CN 2674396Y
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Abstract
The utility model discloses a combined gunpowder delay mechanism suitable for detonation products in gun perforation operation of oil and gas well, comprising an ignition cap, a plurality of delay explosive columns and output caps orderly sheathed in a delay pipe casing, and the ignition cap is connected with the delay pipe casing at one end of the ignition cap through an ignition cap base. Each delay pipe casing is provided with uniformly distributed venting holes and a plurality of delay explosive columns of identical pressing process, powder ingredient, shape and specification. The utility model is characterized in that the pressing process and the charging process of the delay pipe is separated, adopting level pressing process, lightening the labor intensity of manufacturing people, and improving the security of pressing; furthermore, the number of the delay explosive columns can be assembled freely according to different delay requirements of detonation products to form delay line products with different delay time. The utility model has remarkable advantages that it is especially adapted for volume-producing with low cost, wide range of delay time, high delaying precision, stable performance, and good reliability.
Description
Technical field
The utility model relates to a kind of delay initiator material, relates in particular to a kind of oil well, gas well perforating job gunpowder time-delay mechanism of delay initiator material that is applicable to.
Technical background
Continuous progress along with modern science and technology, the priming system that no matter military, civilian (space flight, aviation, especially field of petroleum exploitation) need possess delay function gets more and more, thus the time-delay mechanism that is applied to priming system is also had higher requirement, especially more and more higher to the requirement of length, time precision, function reliability and the safety in utilization of defer time.Time-delay mechanism can be divided into electronic type and gunpowder formula two big classes by its time-delay method; Can be divided into long type when several such as microsecond level, minute level and even several hours again by its defer time.
The extension pipe is an a kind of gunpowder formula time-delay mechanism, and it adopts the tubular type pressing powder technology to make usually, that is to say, this extension pipe successively is pressed onto delay powder layer by layer in the cylindrical shell and forms.The extension pipe of one or several serial connections is placed between ignition charge (cap) and the output medicine (cap) just constituted the time-delay mechanism that is used for delay initiator, the main blasting charge of delay initiator is lighted and is finally ignited by time-delay mechanism by the driving mechanism in the delay initiator.Theoretically, the accurate words of pipe assembling if each is delayed, the length and the defer time of extension pipe are proportional.Yet, successively load pressing powder technology and be difficult to guarantee this proportional relation, in addition, also there are the following problems for pipe to adopt this pressing type to delay:
(1) defer time length limited.The influence that pipe pressurized pharmaceutical worker adorns mould and press stroke of delaying can not be done oversizely, is generally 30～80mm, for reducing medicament in the frictional force of tube wall and the damage of punching pin, toward contact will reduce the to delay length of pipe; In addition, along with the increase of extension length of tube, pressing density is successively decreased, so the extension length of tube can not be long, thereby be restricted defer time, general defer time is 30～60s.
(2) degree of packing is inhomogeneous.Because delay powder is to be pressed onto layer by layer in the shell, along with extension pencil lengthening, the increased frequency of dress pressing, the interior medicament density of pipe of delaying is more and more inhomogeneous, particularly delay pipe when adopting two-way dress pressing, its density is more inhomogeneous, and this will cause the speed of delay powder when burning to change, even circuit fire phenomenon can take place.
(3) labour intensity is big.Pressing punching pin draw ratio (length/diameter) too big (generally more than or equal to 10) easily occurs bending and deformation in pressing powder technology or ruptures; In addition.Delay the again distance of moving in the pencil of punching pin is long more, and is just big more with the frictional force of extension inside pipe wall, thereby punching pin extracts difficultly more, increased working time and labour intensity.
(4) dangerous big.Extension Guan Yuechang, folder medicine between pressing punching pin and the extension inside pipe wall is many more, medicament and extension inside pipe wall contact area are big more in the process of powder charge and pressing, and the punching pin frictional force that produces of moving in the extension pipe is big more, and the probability that pressing process is like this caused danger is just big more.
(5) burning inhomogeneous, easily scurry fire.The energy (gas) that delay powder is discharged when burning in the extension pencil is owing to can't discharge, pressure raises in the pipe, cause the burning velocity of delay powder constantly to be accelerated, when particularly a plurality of extension pipe serial connections are used, the middle ignition charge and density, sensitivity and the degree of combustion of transitional medicine are different with density, sensitivity and the burning velocity of main dress delay powder, thereby " scurrying fire " phenomenon often takes place, reduced delay precision, function reliability and the safety in utilization of the product that detonates.
The utility model content
The technical problems to be solved in the utility model is the deficiency that overcomes prior art, for providing a kind of, priming system the pressing powder technology and the charge process of delay powder separately can be carried out, and the gunpowder time-delay mechanism that can make up arbitrarily by the delay requirement of priming system, this time-delay mechanism not only delays time accurately, good reliability, and charge process is simple, and the scope of application is wide.
For solving the problems of the technologies described above, the utility model comprises igniter cap, ignition cap, several delay grains, output cap, extension tube shell, and described several delay grains are the powder columns that dose is identical, dimensions is identical that are pressed under the pressure condition that equates by with a kind of delay powder; Described ignition cap, several delay grains, output cap are packed in the extension tube shell successively and are guaranteed contact between the adjacent powder column, the length sum of above-mentioned all powder columns should be suitable with the length of extension tube shell, and described igniter cap is connected with the extension tube shell by the igniter cap seat and is adjacent with ignition cap.
According to the utility model, described extension tube shell is a body that has the standard endoporus, be evenly equipped with a few identical pregroove marks on its outer cylinder, the axial centre of each pregroove marks all has a passage that leads to the body endoporus, and the radial position of described passage in pregroove marks then arranged along the rule that the every half-twist of any direction is provided with a passage by described body.
According to the utility model, between ignition cap and delay grain, be placed with the transition powder column that is pressed into after mixing by ignition charge and delay powder.
According to the utility model, described igniter cap is formed by the compacting of heatproof primer mixture.
According to the utility model, described ignition cap is formed by the compacting of silicon ignition charge.
According to the utility model, described delay grain is that the delay powder compacting forms by tungsten.
The beneficial effects of the utility model show the following aspects:
(1) the utility model changes the formula of directly the filling out charge process of extension pipe in the prior art into the compacting delay grain, and its technological specification has not only reduced operator's labour intensity, has improved the security of pressing, can also produce in batches simultaneously.
(2) assembly technology of the present utility model is that each powder column is pushed in the extension tube shell with hand or by simple tool, its operation is very simple, this assembly technology is unqualified to the length of extension tube shell, in the utility model, the length of extension tube shell depends primarily on the quantity of the delay grain that needs placement, the quantity of delay grain is again to determine according to the delay requirement in using, and therefore the utlity model has the time-delay adjustable range of broad, its scope at tens seconds to a few minutes.
(3) uniform a plurality of pregroove marks and the passage of being provided with on the extension tube shell of the present utility model, this had both guaranteed can at any time the high-temperature gas of its generation be discharged in the delay powder combustion process, causing in succession, the ignition temperature of the delay grain of burning reaches unanimity, simultaneously, the annular end face of pregroove marks both sides can effectively stop the propagation of flame of being discharged by passage again, prevent to scurry fiery phenomenon and take place, thereby guaranteed stability of the present utility model.
Several delay grains of (four) packing in the utility model are consistent at the suffered pressure of its pressing process, so circuit fire phenomenon can not take place when delay grain burns, have guaranteed that the utility model can reliably working; In addition, the explosive component of each delay grain, dose, the profile specification is all identical and burning velocity is also roughly the same, and therefore the linear proportional relation of defer time of a plurality of delay grains and single delay grain has guaranteed the utlity model has higher delay precision.
Description of drawings
Fig. 1 is that the utility model is formed schematic diagram.
Fig. 2 is the structural representation of igniter cap seat.
Fig. 3 is an extension tube shell structure chart.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is described in further detail.
As shown in Figure 1, first preferred embodiment of the present utility model comprises igniter cap 1, ignition cap 2, transition powder column 3, delay grain 4, output cap 5, extension tube shell 7.Igniter cap 1 is formed by heatproof percussion compacting, in order to guarantee that igniter cap does not produce displacement and enough holding powers are provided when being impacted, igniter cap 1 is placed in the igniter cap seat 6, igniter cap seat 6 is the cylindrical structure (see figure 2)s of being made by steel, igniter cap seat 6 one end centers have endoporus 8, other end center has internal thread hole 10, is communicated with by passing fiery passage 9 between the two, and igniter cap 1 is adhesive in the endoporus 8 by curing.The ignition cap 2 of this preferred embodiment is formed by the compacting of silicon ignition charge, its function is should be lighted by igniter cap to light delay powder again, it can directly contact with delay grain 3, also can between ignition cap 2 and delay grain 4, place a transition powder column 3, in case stop igniter cap 2 the insensitiveness phenomenon may occur under the high-temp combustion state and cause the utility model work unreliable.The transition powder column 3 of this preferred embodiment is suppressed after being mixed by ignition charge and delay powder.Core point of the present utility model is that the pressing powder technology with delay powder separates with charge process and carries out, therefore in whole time-delay mechanism, delay grain 4 is parts of most critical, the delay grain 4 of this preferred embodiment is 14, it is medicine that its delay powder is selected tungsten for use, delay grain is to form with the compacting of hydraulic press equipment, and the appearance and size of each delay grain 4 is φ 6 * 4mm.Output cap 5 is formed by the compacting of output medicine.
Referring to Fig. 3, the extension tube shell 7 of this preferred embodiment is one and has the standard endoporus 14 of φ 6 * 60mm and the body that two ends are provided with external screw thread 11,16, it adopts the shaping steel tube material of standard to make, uniform 2 identical pregroove marks 13 on its outer cylinder, the diameter of the passage 15 on each pregroove marks 13 is φ 2.5mm, respectively there is a step reaming 11,17 at endoporus 14 two ends, and the size of these two the step reamings shell size with ignition cap 2, output cap 5 respectively is suitable.The defer time of this preferred embodiment is 45 seconds.
The assembly technology of this preferred embodiment is, the output 17 that dashes the extension tube shell with the top withstands earlier, 14 delay grains 4 are pushed in the endoporus 14 of extension tube shell 7 with instrument one by one, guarantee end face contact between each adjacent powder column, put into a transition powder column 3 when installing to apart from the input certain distance, one end of transition powder column 3 should put in hole 11, and ignition cap 2 usefulness curing glue are fixed in the hole 11, will export cap 5 simultaneously and also be fixed in the hole 17 with curing glue; Then igniter cap 1 is screwed on the external screw thread 11 of extension tube shell 7, this preferred embodiment assembling so far finishes.This preferred embodiment installs in the delay initiator by the external screw thread 16 and the corresponding sealing ring of extension tube shell 7, and its input is that igniter cap 1 links to each other with the driving mechanism of delay initiator, and its output is promptly exported cap 5 and linked to each other with the ignition mechanism of delay initiator.The course of work of this preferred embodiment is, the driving mechanism of delay initiator is opened, percussion primer 1, igniter cap 1 firing point igniter cap 2, the ignition cap transition powder column 3 that ignites, the delay grain 4 that transition powder column 3 ignites and is adjacent, the delay grain of the postorder that ignites in turn then, up to igniting output cap 5, at last by exporting the explosive mechanisms that cap 5 is ignited delay initiators.
The difference of second preferred embodiment of the present utility model and first preferred embodiment is, delay grain 4 is 110, and the appearance and size of each delay grain 4 is φ 6 * 3.6mm, and the length of extension tube shell 7 is 400mm, pregroove marks is 21, and defer time is 3 minutes.
The difference of the 3rd preferred embodiment of the present utility model and first preferred embodiment is, delay grain 4 is 320, and the appearance and size of each delay grain 4 is φ 6 * 3.2mm, and the length of extension tube shell 7 is 1028mm, pregroove marks is 52, and defer time is 9.6 minutes.
Claims (5)
1. one kind is used for the product combination formula gunpowder time-delay mechanism of detonating that delays time, comprise igniter cap [1], ignition cap [2], output cap [5], extension tube shell [7], it is characterized in that: also comprise several delay grains [4], described several delay grains [4] are the powder columns that dose is identical, dimensions is identical that is pressed under the pressure condition that equates by with a kind of delay powder; Described ignition cap [2], several delay grains [4], output cap [5] pack into successively extension tube shell [7] endoporus [14] and guarantee contact between the adjacent powder column, the length sum of above-mentioned all powder columns [2,4,5] should be suitable with the length of extension tube shell [7], and described igniter cap [1] is connected with extension tube shell [7] by igniter cap seat [6] and is adjacent with ignition cap [2].
2. combined type gunpowder according to claim 1 time-delay mechanism, it is characterized in that: described extension tube shell [7] is a body that has the standard endoporus, be evenly equipped with a few identical pregroove marks [13] on its outer cylinder, the axial centre of each pregroove marks [13] all has a passage [15] that leads to the body endoporus, and the radial position of described passage [15] in pregroove marks [13] then arranged along the rule that the every half-twist of any direction is provided with a passage [15] by described body [7].
3. according to claim 1,2 described combined type gunpowder time-delay mechanisms, it is characterized in that: described ignition cap [2] is formed by the compacting of silicon ignition charge, and described delay grain [4] is that the delay powder compacting forms by tungsten.
4. combined type gunpowder according to claim 3 time-delay mechanism is characterized in that: be placed with by ignition charge and delay powder between described ignition cap [2] and delay grain [4] and mix the transition powder column [3] that is pressed into.
5. combined type gunpowder according to claim 4 time-delay mechanism is characterized in that: described igniter cap [1] is formed by the compacting of heatproof primer mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041488 CN2674396Y (en) | 2004-02-03 | 2004-02-03 | Combined gunpowder delay mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041488 CN2674396Y (en) | 2004-02-03 | 2004-02-03 | Combined gunpowder delay mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN2674396Y true CN2674396Y (en) | 2005-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041488 Expired - Fee Related CN2674396Y (en) | 2004-02-03 | 2004-02-03 | Combined gunpowder delay mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116923697A (en) * | 2023-09-12 | 2023-10-24 | 江苏福港信息科技有限公司 | Fire extinguishing bomb throwing mechanism for unmanned aerial vehicle |
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2004
- 2004-02-03 CN CN 200420041488 patent/CN2674396Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116923697A (en) * | 2023-09-12 | 2023-10-24 | 江苏福港信息科技有限公司 | Fire extinguishing bomb throwing mechanism for unmanned aerial vehicle |
| CN116923697B (en) * | 2023-09-12 | 2023-11-28 | 江苏福港信息科技有限公司 | Fire extinguishing bomb throwing mechanism for unmanned aerial vehicle |
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| 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 |