CN209654040U - A kind of perforating gun for metro shield boulder and prominent rock blasting - Google Patents
A kind of perforating gun for metro shield boulder and prominent rock blasting Download PDFInfo
- Publication number
- CN209654040U CN209654040U CN201920302108.4U CN201920302108U CN209654040U CN 209654040 U CN209654040 U CN 209654040U CN 201920302108 U CN201920302108 U CN 201920302108U CN 209654040 U CN209654040 U CN 209654040U
- Authority
- CN
- China
- Prior art keywords
- hole
- perforating
- bullet
- metro shield
- rock blasting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of perforating guns for metro shield boulder and prominent rock blasting, including cylindrical gun body, spiral is equipped with several groups through-hole in gun body, every group of through-hole includes large through-hole and the small through hole being correspondingly arranged with large through-hole, and the large through-hole two sides are equipped with groove, through-hole interpolation entrance aperture bullet, withstand small through hole in the top of perforating bullet, the tail portion of perforating bullet is mounted on pressed seat by spring, and the two sides of pressed seat are extended with buckle, and pressed seat is by being caught in gun body.Perforating bullet, is fixed in gun body using the buckle of elasticity, is firmly installed by a kind of perforating gun for metro shield boulder and prominent rock blasting of the utility model, and, due to being improved cavity liner, charge interference is reduced, the punching quality of perforating bullet is improved.
Description
Technical field
The present invention relates to a kind of perforating guns for metro shield boulder and prominent rock blasting, belong to explosion field.
Background technique
The perforator hole that state inland basin oil gas field uses at present is close mostly between the hole 10-16/m, can using high hole dense perforation
Up to the hole 30-40/m.But with the close increase in hole, perforation is worn but to be declined deeply, and by taking 102 32 holes of type/m perforator as an example, concrete target is worn
It is deep to be generally 380mm or so, it is low than 102 16 holes of type/m perforator 550mm wears deep.Its reason mainly has following two sides
Face:
(1) it with the increase of Kong Mi, needs to arrange more perforating bullets in an equal amount of rifle, for space in rifle
The considerations of limitation and the design of perforating bullet spatial configuration optimal, the outer dimension and explosive payload of perforating bullet usually require to reduce, thus
The punching quality of perforating bullet itself is caused to decline.
(2) with the increase of Kong Mi, charge interference is more serious, even if the punching quality of single-shot perforating bullet is good, but is assembled in
Its punching quality will appear decline after in rifle, perforate when serious irregular, wear deep 70% or more reduction.
(3) perforating bullet of existing perforating gun such as subsurface rock beehive-shaped charge demolition set and side in a kind of non-excavating construction
Shown in method-CN201510949972.X, perforating bullet is compressed by the edge of transmitting terminal, compresses insecure, processing technology height.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of for metro shield boulder
With the perforating gun of prominent rock blasting, perforating bullet is fixed in gun body using the buckle of elasticity, is firmly installed, moreover, because
Cavity liner is improved, charge interference is reduced, improves the punching quality of perforating bullet.
Technical solution: in order to solve the above technical problems, one kind of the invention is quick-fried for metro shield boulder and prominent rock
Broken perforating gun, including cylindrical gun body, spiral is equipped with several groups through-hole in gun body, every group of through-hole include large through-hole with
And the small through hole being correspondingly arranged with large through-hole, the large through-hole two sides are equipped with groove, through-hole interpolation entrance aperture bullet, the top of perforating bullet
Small through hole is withstood at end, and the tail portion of perforating bullet is mounted on pressed seat by spring, and the two sides of pressed seat are extended with buckle, pressed seat
By being caught in gun body.
Preferably, the material of the pressed seat be plastics, distance of the inner wall of buckle apart from perforating bullet outer wall be 5~
8mm。
Preferably, the perforating bullet, by main blasting charge, shell case, cavity liner, the cavity liner is located at the top of shell case, it is main
Powder charge is located in shell case, and the cover apex angle of cavity liner is α, α=40 °~50.5 °.
Preferably, the wall thickness of the cavity liner is δ, δ=(2%~3%) D, D are cavity liner oral area internal diameter.
Preferably, the advantageous height of burst of the perforating bullet is 1~3 times of cavity liner bottom width.
Preferably, the height of burst of the perforating bullet is no more than 3cm.
Preferably, if rock be gentle breeze and middle differentiation granite, the degree of packing of perforating gun be no less than 7/
Rice, degree of packing is too small, cannot generate penetrating crack destruction.
The utility model has the advantages that the perforating gun for metro shield boulder and prominent rock blasting of the invention, perforating bullet is placed
It on elastic base, is stuck in gun body using buckle, simultaneously as spring acts on, perforating bullet is fixed in through-holes, will not generate
It shakes, fixation；The advantageous height of burst of perforating bullet is 1~3 times of cavity liner bottom width, is conducive to jet stream and is stretched to a fixed length
Degree, it is ensured that jet stream does not splash when touching target, while the remaining cavity liner for also not destroying not formed jet stream continuously forms jet stream.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gun body in the present invention.
Fig. 2 is the structural schematic diagram of mounting base in the present invention.
Fig. 3 is the structural schematic diagram of perforating bullet.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, a kind of perforating gun for metro shield boulder and prominent rock blasting of the invention, packet
Cylindrical gun body 1 is included, spiral is equipped with several groups through-hole in gun body 1, and every group of through-hole include large through-hole and and large through-hole
The small through hole being correspondingly arranged, the large through-hole two sides are equipped with groove, and through-hole interpolation entrance aperture bullet 2, the top of perforating bullet 2 is withstood small
The tail portion of through-hole, perforating bullet 2 is mounted on pressed seat 4 by spring 5, and the two sides of pressed seat 4 are extended with buckle 3, and pressed seat 4 is logical
It crosses buckle 3 to be caught in gun body 1, the bottom of pressed seat 4 is equipped with through-hole, and for connecting detonator, the material of the pressed seat 4 is modeling
Material, buckling the distance of 3 inner wall apart from 2 outer wall of perforating bullet is 5~8mm.
In the present invention, the perforating bullet 2 is located at the top of shell case by main blasting charge, shell case, cavity liner, the cavity liner
End, main charge are located in shell case, and the cover apex angle of cavity liner is α, and α=40 °~50.5 ° are penetrated when cover apex angle is at 40 °~50.5 °
Hole bullet 2 has maximum Penetration Depth.The wall thickness of the cavity liner is δ, and δ=(2%~3%) D, D are cavity liner oral area internal diameter, cover
Wall easily forms fragmentation if blocked up and can not form jet stream；Jet quality of the cover wall if excessively thin due to formation is very little, meeting
The Penetration Depth to target is reduced to a certain extent, and when wall thickness is (2%~3%) D, jet stream effect is best.The perforating bullet 2
The advantageous height of burst be 1~3 times of cavity liner bottom width, the height of burst of the perforating bullet 2 is no more than 3cm.Height of burst h refers to target plate
The distance between cavity liner lowermost end, its selection directly influence the Penetration Depth after perforating bullet 2 detonates to target.Favorably
The height of burst refers to corresponding under maximum Penetration Depth or best crack distribution mode condition in the case where 2 model of perforating bullet selectes situation
The height of burst, under the operating condition for guaranteeing to injure target effective, the advantageous height of burst can efficiently reduce explosive payload, weaken explosion to week
The influence and save the cost in collarette border.
A kind of above-mentioned application method for metro shield boulder and the perforating gun of prominent rock blasting, including following step
It is rapid:
(1) spring is put into pressed seat, perforating bullet is pressed into pressed seat, and entire pressed seat is pressed into large through-hole
In；
(2) buckle of pressed seat is caught in gun body, and entire perforating bullet is fixed in gun body；
(3) a series of perforating bullet of Spiral distributions is connected by primacord, perforating gun installs.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of perforating gun for metro shield boulder and prominent rock blasting, it is characterised in that: the gun body including cylinder,
Spiral is equipped with several groups through-hole in gun body, and every group of through-hole includes large through-hole and the small through hole that is correspondingly arranged with large through-hole,
The large through-hole two sides are equipped with groove, through-hole interpolation entrance aperture bullet, and small through hole is withstood on the top of perforating bullet, and the tail portion of perforating bullet is logical
It crosses spring to be mounted on pressed seat, the two sides of pressed seat are extended with buckle, and pressed seat is by being caught in gun body.
2. the perforating gun according to claim 1 for metro shield boulder and prominent rock blasting, it is characterised in that: institute
The material for stating pressed seat is plastics, and distance of the inner wall of buckle apart from perforating bullet outer wall is 5 ~ 8mm.
3. the perforating gun according to claim 1 for metro shield boulder and prominent rock blasting, it is characterised in that: institute
Perforating bullet is stated by main blasting charge, shell case, cavity liner, the cavity liner is located at the top of shell case, and main charge is located in shell case, Types of Medicine
The cover apex angle of cover is α,α=40°~50.5°。
4. the perforating gun according to claim 3 for metro shield boulder and prominent rock blasting, it is characterised in that: institute
The wall thickness for stating cavity liner isδ, δ=(2%~3%)D,DFor cavity liner oral area internal diameter.
5. the perforating gun according to claim 3 for metro shield boulder and prominent rock blasting, it is characterised in that: institute
The advantageous height of burst for stating perforating bullet is 1 ~ 3 times of cavity liner bottom width.
6. the perforating gun according to claim 3 for metro shield boulder and prominent rock blasting, it is characterised in that: institute
The height of burst for stating perforating bullet is no more than 3cm.
7. the perforating gun according to claim 3 for metro shield boulder and prominent rock blasting, it is characterised in that: if
Rock is gentle breeze and middle differentiation granite, then the degree of packing of perforating gun is no less than 7/meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920302108.4U CN209654040U (en) | 2019-03-11 | 2019-03-11 | A kind of perforating gun for metro shield boulder and prominent rock blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920302108.4U CN209654040U (en) | 2019-03-11 | 2019-03-11 | A kind of perforating gun for metro shield boulder and prominent rock blasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654040U true CN209654040U (en) | 2019-11-19 |
Family
ID=68526505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920302108.4U Expired - Fee Related CN209654040U (en) | 2019-03-11 | 2019-03-11 | A kind of perforating gun for metro shield boulder and prominent rock blasting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958444A (en) * | 2019-03-11 | 2019-07-02 | 厦门爆破工程公司 | A kind of perforating gun and application method for metro shield boulder and prominent rock blasting |
-
2019
- 2019-03-11 CN CN201920302108.4U patent/CN209654040U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958444A (en) * | 2019-03-11 | 2019-07-02 | 厦门爆破工程公司 | A kind of perforating gun and application method for metro shield boulder and prominent rock blasting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |