CN201723195U

CN201723195U - Fool-type gas drainage hole sealing device

Info

Publication number: CN201723195U
Application number: CN2010202036965U
Authority: CN
Inventors: 张寅�; 别小飞; 张青宣; 魏向志; 郭献忠; 庞招辉; 岳红周; 马汉忠; 于新年; 苑铎; 翟超众; 孙清权
Original assignee: QIANQIU MINE OF YIMA COAL GROUP
Current assignee: QIANQIU MINE OF YIMA COAL GROUP
Priority date: 2010-05-26
Filing date: 2010-05-26
Publication date: 2011-01-26
Anticipated expiration: 2020-05-26

Abstract

The utility model relates to a fool-type gas drainage hole sealing device which can effectively solve the problems of backflow of medium and blockage of a drainage pipeline when in hole sealing. The structure of the fool-type gas drainage hole sealing device is as follows: air bags are arranged at two ends of a pipe body, the pipe body is formed by the seal butting of three porous pipes together, the air bags are arranged on two porous pipes at two ends respectively and communicated with air bag inflation channels through air bag holes, the middle porous pipe is internally provided with a round pipe the outer diameter of which is smaller than the inner diameter of the middle porous pipe, a gap is formed between the middle porous pipe and the round pipe and is filled with the medium, two ends of the gap are sealed by plastic injection parts, a water bag with a check valve is arranged in the gap between the middle porous pipe and the round pipe and is connected with a pressurizing channel, the water bag is separated from water, a slurry draining hole is arranged below the middle porous pipe, and an anti-explosion plate and a sealing bolt are arranged at the slurry draining hole. The fool-type gas drainage hole sealing device has the technical benefits of having novel and unique structure, being used conveniently and safely, saving time and labor, being convenient and quick, and having good using effect.

Description

Foolproof gas drainage hole packer

One, technical field

The utility model relates to coal mine equipment, particularly a kind of foolproof gas drainage hole packer.

Two, background technology

Hole packer is an equipment commonly used in the Coal Production, China's coal-mine is along with adopting dark increasing at present, coal seam gas-bearing capacity increases gradually, the gas problem has become the key factor of restriction Safety of Coal Mine Production, gas drainage under suction is a kind of important effective measures that solve the gas problem, present stage, China's coal-mine mainly was goaf gas drainage, this coal bed gas drainage etc., but in these gas drainage under suction measures of employing, some difficult problems have also been produced, wherein the sealing of hole problem of firedamp taking-out discharging drilling never is well solved, at present, traditional sealing of hole be with the polyurethane sealing of hole and in boring the cementing mortar carry out sealing of hole etc. because the problem that exists on the structure, flow backwards out in the gap between the medium of filling is holed by medium channel and releasing pipe and extraction when sealing of hole in the operation, simultaneously, can flow into releasing pipe inside after the medium reaction is expanded, stop up extraction pipeline, the influence safe handling, therefore, its improvement and innovation are to be concerned about in the industry.

Three, utility model content

At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of foolproof gas drainage hole packer, can solve effectively in the operation that the medium of filling flows backwards out by the gap between medium channel and releasing pipe and extraction boring when sealing of hole, simultaneously, can flow into releasing pipe inside after the medium reaction is expanded, stop up extraction pipeline, the problem of influence safe handling.

The technical scheme of its solution is, comprise body and air bag, air bag is contained on the two ends of body, said body is to be docking together by three antipriming pipe sealings to constitute, on two antipriming pipes at two, wherein, on one the antipriming pipe rear gasbag is housed, preceding air bag is housed on the antipriming pipe of other end, rear gasbag is connected with the rear gasbag filling channel through the rear gasbag hole, preceding air bag is connected with preceding airbag aeration passage through preceding pneumatopyle, a middle antipriming pipe inside is equipped with an external diameter than middle pipe that the porous internal diameter of tube body is little, forms the space between a middle antipriming pipe and the pipe, and medium is housed in the space, two ends seal with moulding, in the space between a middle antipriming pipe and pipe a water bag that has one way valve is installed, and is connected with pressurization passageway, water bag and water separate, below a middle antipriming pipe, offer the plasma discharge mouth, burst disk and sealing bolt are arranged on the plasma discharge mouth.

Useful technique effect of the present utility model is novel structure uniqueness, safety easy to use, foolproof gas drainage hole packer does not need other auxiliary equipment, only need a pressure limiting rifle inflation just can, reduced the processing of equipment and carried, not only save time but also laborsaving, convenient and swift, result of use is good.

Four, description of drawings

Fig. 1 is a structural front view of the present utility model.

Fig. 2 is that the A-A of the utility model Fig. 1 is to front view.

Fig. 3 is that the B-B of the utility model Fig. 1 is to front view.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

Shown in Fig. 1-3, the utility model comprises body and air bag, air bag is contained on the two ends of body, said body is by three antipriming pipe 1a, 1b, 1c seals the formation that is docking together, two antipriming pipe 1a at two, on the 1b, wherein, on one the antipriming pipe 1a rear gasbag 2 is housed, air bag 3 before being equipped with on the antipriming pipe 1c of other end, rear gasbag 2 is connected with rear gasbag filling channel 10 through rear gasbag hole 8, preceding air bag 3 is connected with preceding airbag aeration passage 11 through preceding pneumatopyle 9, a middle antipriming pipe 1b inside is equipped with an external diameter than middle pipe 7 that the porous internal diameter of tube body is little, forms space 12 between a middle antipriming pipe and the pipe, and medium is housed in the space 12, two ends seal with moulding, in the space between a middle antipriming pipe 1b and pipe a water bag 5 that has one way valve is installed, and is connected with pressurization passageway 4, water bag and water separate, below a middle antipriming pipe, offer plasma discharge mouth 6, burst disk and sealing bolt are arranged on the plasma discharge mouth.

In order to guarantee result of use, said body 1 is a Long Circle, and pore inwall one side is the plane, and pressurization passageway 4 is housed between plane and tube wall, and rear gasbag filling channel 10, preceding airbag aeration passage 11 are equipped with in both sides in the pressurization passageway 4 antipriming pipe 1a at one end; Between the endoporus plane of a middle antipriming pipe 1b and outer wall preceding airbag aeration passage 11 and pressurization passageway 4 are arranged; Said pipe 7 places in the middle antipriming pipe 1b near lower eccentric in the body; Said rear gasbag filling channel 10, pressurization passageway 4, preceding airbag aeration passage 11 are in axially parallel, the through-hole diameter of pressurization passageway 4 is greater than the diameter of rear gasbag filling channel 10, preceding airbag aeration passage 11, and rear gasbag filling channel 10 is identical with the channel diameter of preceding airbag aeration passage 11.

Mode of occupation of the present utility model is, below antipriming pipe, offer a plasma discharge mouth, the plasma discharge mouth uses burst disk and bolt to seal, prevent that built-in medium from flowing out, during use, earlier foolproof gas drainage hole packer to connecting, open the bolt at plasma discharge mouth place, be inserted in the firedamp taking-out discharging drilling then, inflate in rear gasbag by the rear gasbag filling channel, space between sealing rear gasbag and extraction boring, use the pressure limiting charge gun in built-in water bag, to pressurize then by pressurization passageway, forcing water bag to rise splits, water is mixed with medium, continue to pressurize to inner inflatable with the pressure limiting charge gun, the antipriming pipe internal pressure increases, break through burst disk, enter boring inside, pass through preceding airbag aeration passage airbag aeration forward this moment, space before the sealing between air bag and boring, prevent that filling medium from flowing in the releasing pipe, stop up releasing pipe, this moment, filling medium and water began the reaction foaming, gradually filling extraction device and boring between the space, do not go out even there is unnecessary medium to arrange yet, strengthened the density of charges, make the sealing of whole space better.

Claims

1. foolproof gas drainage hole packer, comprise body and air bag, air bag is contained on the two ends of body, it is characterized in that, said body is by three antipriming pipe (1a, 1b, 1c) seal the formation that is docking together, two antipriming pipe (1a at two, 1b), wherein, rear gasbag (2) is housed on one the antipriming pipe (1a), preceding air bag (3) is housed on the antipriming pipe of other end (1c), rear gasbag (2) is connected with rear gasbag filling channel (10) through rear gasbag hole (8), preceding air bag (3) is connected with preceding airbag aeration passage (11) through preceding pneumatopyle (9), a middle antipriming pipe (1b) inside is equipped with an external diameter than middle pipe (7) that the porous internal diameter of tube body is little, form space (12) between a middle antipriming pipe and the pipe, medium is housed in the space, two ends seal with moulding, in the space between a middle antipriming pipe (1b) and pipe a water bag (5) that has one way valve is installed, and be connected with pressurization passageway (4), water bag and water separate, below a middle antipriming pipe, offer plasma discharge mouth (6), burst disk and sealing bolt are arranged on the plasma discharge mouth.

2. foolproof gas drainage hole packer according to claim 1, it is characterized in that, said body (1) is a Long Circle, pore inwall one side is the plane, pressurization passageway (4) is housed between plane and tube wall, and rear gasbag filling channel (10), preceding airbag aeration passage (11) are equipped with in pressurization passageway (4) the interior both sides of antipriming pipe (1a) at one end.

3. foolproof gas drainage hole packer according to claim 1 is characterized in that, preceding airbag aeration passage (11) and pressurization passageway (4) are arranged between the endoporus plane of the antipriming pipe in said centre (1b) and outer wall.

4. foolproof gas drainage hole packer according to claim 1 is characterized in that, said pipe (7) places in the middle antipriming pipe (1b) near lower eccentric in the body.

5. foolproof gas drainage hole packer according to claim 1, it is characterized in that, said rear gasbag filling channel (10), pressurization passageway (4), preceding airbag aeration passage (11) are in axially parallel, the through-hole diameter of pressurization passageway (4) is greater than the diameter of rear gasbag filling channel (10), preceding airbag aeration passage (11), and rear gasbag filling channel (10) is identical with the channel diameter of preceding airbag aeration passage (11).