CN102401615B - Double-cable delay mechanism - Google Patents
Double-cable delay mechanism Download PDFInfo
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- CN102401615B CN102401615B CN 201110369793 CN201110369793A CN102401615B CN 102401615 B CN102401615 B CN 102401615B CN 201110369793 CN201110369793 CN 201110369793 CN 201110369793 A CN201110369793 A CN 201110369793A CN 102401615 B CN102401615 B CN 102401615B
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Abstract
The invention relates to a double-cable delay mechanism which is technically characterized in that two delay cables are spirally twined along with a double-head thread spiral preformed groove at the same direction and embedded into a deep groove which is fixed in the middle of a joint, penetrate through an ignition tube, and are tightly clamped in the ignition tube with igniting powder which is pressed into the ignition tube. When the two delay cables are twined on a screw rod at the same direction and are delayed at the same time, the reliability of explosion propagation is improved; and the screw rod is a hollow tubular column body, so that a release room of a medicament burning gas is increased, and the delay cables are preferably and stably burnt. Furthermore, the delay time of the mechanism can set the delay cables with different lengths by adjusting the screw pitch and the helical pitch of the spiral preformed groove on the screw rod, so that products with different delay time can be formed. The double-cable delay mechanism has the outstanding advantages of being convenient to assemble, good in reliability, flexible to use, and suitable for mass production.
Description
Technical field
The present invention relates to a kind of pair of rope delay device, relate in particular to and a kind ofly be applicable to the perforating oil gas well operation with the cable-styled delay device of long delay boosting explosive material.
Background technology
The delay powder abundant raw material, easily manufactured, cost is low, temperature resistance, shatter-proof, the extension scope is wide, and production safety, function reliability advantages of higher are adopted it in a large number in the national economy such as weapons, space flight, rocket.Delay powder is controlled igniting and the detonating technique application in Military and civil fields has in recent years obtained to develop rapidly, and particularly the application in the quick-fried perforation exploitation of oil people field, detonate at times to whole perforation pipe string and play very important effect.Due to the environment that in well is high temperature, high pressure, sealing, gunpowder time-delay boosting explosive material is connected to crucial position, if do not work, unreliable work in other words will cause and do over again, and waste of manpower, material resources are so require the propagation of explosion product to have very high reliability.
The extension rope is a kind ofly to load delay powder in braid or metal tube, the rope class firer who adopts braiding or drawing process the to make part of delaying.The defer time of extension rope is directly proportional to the length of extension rope, can realize that by the length that increases the extension rope the long minute level of delaying is to hour level.Becoming known at present the device Combined gunpowder delay mechanism ZL200420041488.4 of perforation time-delay, is that delay powder is pressed into a plurality of powder columns, and realizes in the extension shell of packing into successively delaying.Realize the time-delay of different time by the powder column of combination varying number.This apparatus structure is very strict for powder column pressing process and matching requirements, requires fully contact of assembling between each powder column, otherwise the hidden danger of cutoff is arranged.Be subjected to simultaneously the impact of powder column height, after assembling, length is longer, can't satisfy the longer time demand.So need to overcome the deficiency of present prior art, for providing a kind of, priming system need not to press, charge pole, and compact conformation, assembling are complete, reliable effect and can realize that long delay minute is to the two rope delay device of hour level.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of pair of rope delay device, need not to press for priming system provides a kind of, charge pole, and compact conformation, assembling are complete, reliable effect and the two rope delay device that can realize long delay (minute to hour level).
Technical scheme
A kind of pair of rope delay device is characterized in that comprising two ignition caps 1, two ignitrons 3, two extension ropes 4, two connectors 5, screw rod 6 and ignition charges 2; Screw rod 6 is hollow cylinder, and its surface is provided with double thread spiral pregroove marks, and endoporus two ends are provided with screwed hole, radially has a plurality of passages 7 in the pregroove marks at the position of pregroove marks; Two connectors 5 are threaded in respectively the two ends of screw rod 6, and its outside is fixedly connected with ignitron 3, and ignition cap 1 is fitted in ignition charge 2 outsides; Two extension ropes 4 along double thread spiral pregroove marks in the same way spiral winding and embedding be fixed in the deep trouth at connector 5 middle parts, and by passing in ignitron 3, and be clamped in ignitron 3 together with ignitron 3 is pressed into ignition charge 2; The center of described ignition cap 1 is provided with flash hole.
The length of described extension rope 4 depends on the time of needs time-delay, and two extension ropes 4 is equal in length.
The length requirement of extension rope 4 is satisfied in the cooperation of the pitch of the size of described screw rod 6 and double thread spiral pregroove marks.
The every half-twist of pregroove marks that is set to of the passage 7 on described screw rod 6 radially has a passage.
Described ignitron 3 adopts and solidifies the outside that glue is fixed on connector 5.
The middle part of described connector 5 is provided with the external screw thread 8 that is connected with the propagation of explosion device of delaying time.
Beneficial effect
A kind of pair of rope delay device that the present invention proposes, two extension Suo Tongxiang are wrapped on screw rod and delay time simultaneously, have improved detonation propagation reliability of nonel tube; Screw rod is a hollow pipe cylinder, increased the Free up Memory of medicament burning gases, the smooth combustion of rope is conducive to delay, in addition, the present invention can be by pitch and the helical pitch customization different length extension rope of adjusting spiral pregroove marks on screw rod, to form the product of different defer times when delaying in ten minutes.
Beneficial effect is embodied in the following aspects:
1, adopted redundancy in the present invention, namely selected the rear time-delay of lighting a fire simultaneously of two extension ropes, guaranteed that the utility model can reliably working.
2, in the present invention by the pitch of adjusting spiral pregroove marks on screw rod and the extension rope that helical pitch is selected different length, thereby realize the purpose of different defer times.In the present invention, spiro rod length limits, the two rope delay device compact conformation that assembles, and overall structure is less, a few minutes to ten minute of usually can delaying time, has wide in range time-delay adjusting range.
3, the screw rod in the present invention is provided with endoporus and passage, and the interior blind hole of connector bottom increased the Free up Memory of high-temperature gas in extension rope combustion process, has guaranteed combustion stability of the present utility model.
4, in the present invention, ignition charge and ignitron and two extension ropes are assembled into as a whole, in use, more reliable, safety.
Description of drawings
Fig. 1: of the present invention pair of rope delay device structural representation;
Fig. 2: the cutaway view that is Fig. 1;
Fig. 3: the A-A position profile that is Fig. 1;
Fig. 4: be the second embodiment of the invention schematic diagram;
In figure: 1-ignition cap, 2-ignition charge, 3-ignitron, 4-extension rope, 5-connector, 6-screw rod, 7-passage, 8-external screw thread.
The specific embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
The embodiment of the present invention as shown in Figure 1, embodiment 1 comprises ignition cap 1, ignition charge 2, ignitron 3, extension rope 4, connector 5, screw rod 6.Ignition cap 1 is made by the aluminium strip punching press, and the center is with Φ 5mm flash hole.Ignitron 3 is the hollow shell of aluminum of high 20mm.Connector 5 be bottom center with the stairstepping cylinder of the dark 20mm blind hole of Φ 16mm, upper end and intermediate step both sides external are milled with deep trouth, be used for to embed extension rope 4, middle part and the outside, lower end are provided with external screw thread.Screw rod 6 is the tube column that a surface is provided with double thread spiral pregroove marks, and two extension ropes 4 minutes both sides are wrapped in the spiral pregroove marks of screw rod 6 in the same way, and the end of extension rope 4 embeds and is fixed in the deep trouth of connector 5 both sides.The endoporus two ends of screw rod 6 are provided with screwed hole, are connected and fixed connector 5.Ignitron 3 is arranged on the outside of connector 5, fixes and tighten two extension ropes with curing glue, is pressed into ignition charge 2.In the ignitron 3 of this preferred embodiment, compacting is zirconium mooring points gunpowder, and its function is to make input be lighted simultaneously two extension ropes of reliable ignition again by higher level's device in down-hole high temperature (200 ℃) situation; To be lighted by the extension rope reliably to light again low-level device moderate heat workpiece simultaneously at output.Ignition cap 1 in this preferred embodiment is fitted in ignition charge 2 outsides and is used for preventing that ignition charge 2 from making moist, and guarantees that simultaneously pharmacy security does not leak outside.
Two extension ropes 4 of the present embodiment are wrapped in the prefabricated spiral groove of screw rod 6 in the same way, delay simultaneously.Defer time length is determined by extension rope 4 length, so in whole time-delay mechanism, on its screw rod 6, prefabricated double thread helicla flute is the most critical part.Can make by adjusting spiral fluted pitch and helical pitch the extension rope 4 that is wound around different length on screw rod, to reach the purpose of different defer times.Every half-twist radially has a passage 7 in screw rod 6 middle part pregroove marks.
Referring to Fig. 2, it is screwed hole with Φ 25x70mm endoporus and two ends that the screw rod 6 of the present embodiment is one, and the outside is the spiral pregroove marks, and the middle part rotates the tube column of 4 the Φ 3mm passages 7 that distributing.The prefabricated groove width of spiral is 5mm, and it is medicine extension rope that extension rope 4 is selected Φ 3.5mm tungsten.The defer time of this preferred embodiment is ten minutes.
The assembly technology of the present embodiment is: the two ends that first two connectors 5 are threaded in respectively screw rod 6, two extension ropes 4 that will cut again embed respectively in a connector 5 both sides deep trouths, and be wound around and compress along helicla flute on screw rod 6, the end of two extension ropes 4 snaps in another connector 5 both sides deep trouths; Two ignitrons 3 are set in two connector 5 outer ends, fix and tighten with curing glue, at last ignition charge 2 and ignition cap 1 are pressed in ignitron 3, consist of two rope delay device.This preferred embodiment is assembled in time-delay propagation of explosion device by external screw thread 8 and the corresponding sealing ring at connector 5 middle parts, and the ignition mechanism of an end and higher level's priming device is connected, and the other end is connected with the blast output mechanism of propagation of explosion device.
The course of work of the present embodiment is, the ignition charge 2 in higher level's priming device fire point burning-point fire tube 3, and ignition charge 2 is lighted two extension ropes 4, until light the ignition charge 2 of the other end after extension rope 4 all burnts, lights the blast output mechanism by ignition charge 2 at last.
Embodiments of the invention 2 are that different according to boosting explosive material heatproof index, ignition charge 2 is selected silicon mooring points gunpowder, is used for 160 ℃ of hole conditions of heatproof with the difference of embodiment 1.
The adjustment of the embodiment of the present invention 3 after the pitch and helical pitch of spiral pregroove marks of screw rod 6 of embodiment 2, select the extension rope that is different from length in embodiment 1, making defer time is six minutes.(referring to Fig. 4).
Claims (5)
1. a two rope delay device, is characterized in that comprising two ignition caps (1), two ignitrons (3), two extension ropes (4), two connectors (5), screw rod (6) and ignition charge (2); Screw rod (6) is hollow cylinder, and its surface is provided with double thread spiral pregroove marks, and endoporus two ends are provided with screwed hole, radially has a plurality of passages (7) in the pregroove marks at the position of pregroove marks; Two connectors (5) are threaded in respectively the two ends of screw rod (6), and its outside is fixedly connected with ignitron (3), and ignition cap (1) is fitted in outside ignition charge (2); Two extension ropes (4) are along double thread spiral pregroove marks spiral winding and embedding in the deep trouth be fixed on connector (5) middle part in the same way, and by passing in ignitron (3), are clamped in ignitron (3) together with the ignition charge that is pressed into (2); The center of described ignition cap (1) is provided with flash hole.
2. two rope delay device according to claim 1, it is characterized in that: the length of described extension rope (4) depends on the time that needs are delayed time, and two extension ropes (4) is equal in length.
3. two rope delay device according to claim 1, it is characterized in that: the length requirement of extension rope (4) is satisfied in the cooperation of the pitch of the size of described screw rod (6) and double thread spiral pregroove marks.
4. according to claim 1 or 3 described pairs of rope delay devices, it is characterized in that: the every half-twist of pregroove marks that is set to of the passage (7) on described screw rod (6) radially has a passage.
5. two rope delay device according to claim 1, it is characterized in that: described ignitron (3) adopts and solidifies the outside that glue is fixed on connector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110369793 CN102401615B (en) | 2011-11-18 | 2011-11-18 | Double-cable delay mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110369793 CN102401615B (en) | 2011-11-18 | 2011-11-18 | Double-cable delay mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102401615A CN102401615A (en) | 2012-04-04 |
| CN102401615B true CN102401615B (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110369793 Active CN102401615B (en) | 2011-11-18 | 2011-11-18 | Double-cable delay mechanism |
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| CN (1) | CN102401615B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114754633B (en) * | 2022-05-25 | 2024-07-19 | 西安北方庆华机电有限公司 | Pulling type non-electric delay pusher |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4427295A1 (en) * | 1994-08-02 | 1996-02-08 | Dynamit Nobel Ag | Electric detonator |
| CN101182980B (en) * | 2007-10-19 | 2011-04-27 | 西安庆华民用爆破器材有限责任公司 | Double-item auxiliary detonator of detonator |
| CN101303218B (en) * | 2008-04-07 | 2011-06-01 | 中国科学技术大学 | Combustion type deferred blasting cap and deferred elements thereof |
| CN202494388U (en) * | 2011-11-18 | 2012-10-17 | 西安物华巨能爆破器材有限责任公司 | Double cord delay mechanism |
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| CN102401615A (en) | 2012-04-04 |
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