CN212249936U

CN212249936U - Double-sealing type orifice-preventing device

Info

Publication number: CN212249936U
Application number: CN202020827467.4U
Authority: CN
Inventors: 李金亮; 杨玉龙; 韩锦泰; 田加加; 赵鑫; 刘俊娟; 何俊峰; 肖绪宁
Original assignee: HEBI ZHONGTAI MINING CO Ltd
Current assignee: HEBI ZHONGTAI MINING CO Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-29
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a double-sealing blowout preventer, which comprises a collecting box, a drainage pipeline, a slag discharge pipeline, a baffle, an inner sealing device and an outer sealing device, wherein the drainage pipeline is installed on the back of the collecting box in a penetrating way, the slag discharge pipeline is installed on the front of the collecting box in a penetrating way, the baffle is installed on the top of the collecting box, the outer sealing device is arranged at the bottom of the collecting box, the inner sealing device is arranged at the bottom of the outer sealing device, in the using process of the double-sealing blowout preventer, the use of the other blowout preventer is not influenced after one blowout preventer is damaged, the drilling construction progress can be effectively ensured, the drilling process can be improved, the construction safety is facilitated, each component can be disassembled and carried, the use is more convenient and more convenient, the transportation safety is facilitated, the damage can be replaced, the belt in contact with a drill rod can effectively prevent the leakage of gas from a, the device greatly enhances the function of the blowout-preventing hole.

Description

Double-sealing type orifice-preventing device

Technical Field

The utility model relates to a mining equipment technical field specifically is a orifice device is prevented to double containment formula.

Background

Along with the extension of the mining depth of the mine, the gas pressure and the gas content of the coal bed produced by the mine are increased, and the safe production of the mine is seriously restricted. Construction cross-layer drilling is taken out and is taken out coal seam gas and take out one of the effective means as gas control, the emergence of gas emission and orifice condition when in the work progress, the construction drilling has seriously been influenced and has advanced constructor's safety, effectively solve the emergence of drilling gas abnormal conditions, coal mine construction cross-layer drilling has generally taken and has prevented spouting the hole technique, made and has prevented spouting the hole device, played effectual gas control effect in the use, the main device of preventing at present drilling blowout gas has two: one is an outer sealing type, the other is an inner sealing type, the outer sealing type is easy to deposit slag at the rubber cylinder, so that the rubber cylinder is not easy to block after long use time or cannot be attached to the rock wall of the orifice when the rubber cylinder drops, and gaps are formed; the inner sealing type is easily influenced by water supply, the pressure cannot play a role in expansion sealing when not enough, or the sleeve is damaged due to the fact that the drill rod is abraded by the sleeve, and the sealing effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a orifice device is prevented to double containment formula to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hole device is prevented spouting by double containment formula, includes collecting box, drainage pipeline, row's sediment pipeline, baffle, interior closing device and outer device of packing, drainage pipeline run-through type is installed at the collecting box back, arrange the sediment pipeline run-through type and install in the front of collecting box, the baffle is installed at the top of collecting box, outer device sets up in the bottom of collecting box, interior closing device sets up in the bottom of outer device.

Preferably, four corners of the top and the bottom of the collecting box are fixedly welded with bolt columns, and the middle of the top of the baffle is provided with a drill rod hole.

Preferably, interior sealing device includes shrouding, through hole and iron pipe nipple joint in the second, the middle part at interior shrouding top is seted up to the through hole, the top fixed connection of the bottom of iron pipe nipple joint and interior shrouding.

Preferably, the outer packaging device comprises an outer sealing plate, a communication hole, a short pipe joint and a butt joint pipeline, wherein the communication hole is formed in the middle of the top of the outer sealing plate, the bottom of the short pipe joint is fixedly welded with the top of the outer sealing plate, and the butt joint pipeline is fixedly installed on two sides of the short pipe joint.

Preferably, sealing baffle skins are arranged between the baffle and the top of the collecting box and between the inner sealing plate and the outer sealing plate.

Preferably, the butt joint pipeline comprises a drainage butt joint pipe and a slag discharge butt joint pipe, the drainage butt joint pipe is installed on the back face of the short pipe joint, and the slag discharge butt joint pipe is installed on the front face of the short pipe joint.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this orifice device is prevented to double containment formula, in the double containment blowout preventer use, does not influence another blowout preventer's use after a blowout preventer damages, can effectively ensure drilling construction progress, can improve the drilling process.

2. This orifice device is prevented to double containment formula, each part can be dismantled and carry, uses more convenient, can change after impaired, has effectively prevented gas from the leakage of kneck with the belt of drilling rod contact, and the device has strengthened the effect of preventing spouting the hole greatly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the present invention;

FIG. 3 is an enlarged view of the point B in FIG. 2 according to the present invention;

fig. 4 is an enlarged view of the point C in fig. 2 according to the present invention.

In the figure: the device comprises a collecting box 1, a bolt column 101, a drainage pipeline 2, a slag discharge pipeline 3, a baffle 4, a drill hole 401, an inner sealing device 5, an inner sealing plate 501, a through hole 502, an iron pipe short section 503, an outer sealing device 6, an outer sealing plate 601, a communication hole 602, a short pipe joint 603, a butt joint pipeline 604, a drainage butt joint pipe 6041, a slag discharge butt joint pipe 6042 and a sealing baffle 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a double-sealing type orifice-spraying-preventing device comprises a collecting box 1, a drawing and releasing pipeline 2, a slag discharging pipeline 3, a baffle 4, an inner sealing device 5 and an outer sealing device 6, wherein the drawing and releasing pipeline 2 is installed on the back of the collecting box 1 in a penetrating manner, the slag discharging pipeline 3 is installed on the front of the collecting box 1 in a penetrating manner, the baffle 4 is installed on the top of the collecting box 1, the outer sealing device 6 is arranged at the bottom of the collecting box 1, the inner sealing device 5 is arranged at the bottom of the outer sealing device 6, four corners of the top and the bottom of the collecting box 1 are fixedly welded with a bolt column 101, a drill rod hole 401 is formed in the middle of the top of the baffle 4, the inner sealing device 5 comprises an inner sealing plate 501, a through hole 502 and an iron pipe nipple 503, the through hole 502 is formed in the middle of the top of the inner sealing plate 501, the bottom of the iron pipe nipple 503 is fixedly connected with, the middle part at outer shrouding 601 top is seted up to intercommunicating pore 602, the bottom of stub pipe joint 603 and the fixed welding in top of outer shrouding 601, butt joint pipeline 604 fixed mounting is in the both sides of stub pipe joint 603, between the top of baffle 4 and collecting box 1, all be provided with sealed fender skin 7 between inner shrouding 501 and the outer shrouding 601, butt joint pipeline 604 is including taking out put butt joint pipe 6041 and arrange sediment butt joint pipe 6042, take out put butt joint pipe 6041 and install the back at stub pipe joint 603, arrange sediment butt joint pipe 6042 and install on the front of stub pipe joint 603.

The working principle is as follows: firstly, connecting a baffle 4 with the top of a collecting box 1, installing a central opening, a drill rod diameter non-sealing device 5 and an outer sealing device 6, wherein the installation method is the same as the installation method of the baffle 4, firstly, using a large drill bit to open a hole with the depth of about 300mm, then sleeving a blowout prevention hole device into the drill rod, replacing the drill bit with a normal drilling drill bit, sleeving a rubber cylinder with an outer edge into the position of an inserting hole of a through hole 502 arranged on an inner sealing plate 501 in the inner sealing device 5, then sleeving a small opening of a variable diameter rubber cylinder into a communicating hole 602 arranged on the outer sealing device 6, enabling the large opening to face towards the hole opening, fixing the double-sealing blowout prevention device by using a fixing rod, enabling the inner sealing device to be inserted into the hole bottom (the rubber cylinder is outwards turned under the pressure action because the outer edge of the inner sealing cylinder is provided with the outer edge, and can play a sealing role), and the rubber cylinder can well, the pumping and discharging butt joint pipe 6041 and the slag discharge butt joint pipe 6042 of the external sealing device can be connected with the tee joint by using short hoses, and the other port of the tee joint is in butt joint installation with the pumping and discharging pipeline 2 and the slag discharge pipeline 3 by using a long hose.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hole device is prevented spouting by double containment formula, includes collecting box (1), drainage pipe way (2), row's sediment pipeline (3), baffle (4), interior sealing device (5) and outer packing device (6), its characterized in that: the drainage pipeline (2) is installed on the back of the collecting box (1) in a penetrating mode, the slag discharge pipeline (3) is installed on the front of the collecting box (1) in a penetrating mode, the baffle (4) is installed on the top of the collecting box (1), the outer sealing device (6) is arranged at the bottom of the collecting box (1), and the inner sealing device (5) is arranged at the bottom of the outer sealing device (6).

2. The double seal blowout preventer according to claim 1, wherein: the four corners of the top and the bottom of the collecting box (1) are fixedly welded with bolt columns (101), and the middle of the top of the baffle (4) is provided with a drill rod hole (401).

3. The double seal blowout preventer according to claim 1, wherein: interior sealing device (5) include shrouding (501), through hole (502) and iron pipe nipple joint (503) in the second, the middle part at interior shrouding (501) top is seted up in through hole (502), the bottom of iron pipe nipple joint (503) and the top fixed connection of interior shrouding (501).

4. The double seal blowout preventer according to claim 1, wherein: the outer sealing device (6) comprises an outer sealing plate (601), a communication hole (602), a short pipe joint (603) and butt joint pipelines (604), wherein the communication hole (602) is formed in the middle of the top of the outer sealing plate (601), the bottom of the short pipe joint (603) is fixedly welded with the top of the outer sealing plate (601), and the butt joint pipelines (604) are fixedly installed on two sides of the short pipe joint (603).

5. The double seal blowout preventer according to claim 1, wherein: sealing baffle skins (7) are arranged between the baffle (4) and the top of the collecting box (1) and between the inner sealing plate (501) and the outer sealing plate (601).

6. The double seal blowout preventer according to claim 4, wherein: the butt joint pipeline (604) comprises a drawing and placing butt joint pipe (6041) and a slag discharging butt joint pipe (6042), the drawing and placing butt joint pipe (6041) is installed on the back face of the short pipe joint (603), and the slag discharging butt joint pipe (6042) is installed on the front face of the short pipe joint (603).