CN210892881U

CN210892881U - Cracking tube filled with gas in hole

Info

Publication number: CN210892881U
Application number: CN201921799778.8U
Authority: CN
Inventors: 方莹
Original assignee: Individual
Current assignee: Guangdong Hongkai Gas Energy Technology Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-30
Anticipated expiration: 2029-10-25

Abstract

The utility model belongs to the technical field of rock expansion fracturing equipment, and discloses a gas fracturing pipe filled in a hole, which comprises a liquid storage pipe and an automatic release valve, wherein the automatic release valve is arranged at the bottom of the liquid storage pipe, and a movable valve core is arranged on the automatic release valve; when the movable valve core is ejected out, the automatic air release valve is in an air release state, and the automatic air release valve is communicated with the inner space of the liquid storage pipe and the outer space of the liquid storage pipe; when the movable valve core contracts, the automatic air escape valve is in an inflatable state. Compared with the prior art, the utility model limits the filling operation and the using environment of the fracturing pipe, and can effectively prevent the fracturing pipe from being used as a weapon for defending even malicious attack by lawbreakers; in addition, when the non-blasting phenomena such as 'dumb gun' and the like occur in the gas-filled fracturing pipe in the hole, the bottom of the fracturing pipe is separated from the ground, and the high-pressure gas in the pipe can be leaked out through the automatic air release valve, so that the safety performance is greatly improved.

Description

Cracking tube filled with gas in hole

Technical Field

The utility model belongs to the technical field of the rock inflation fracturing equipment, especially, relate to a downthehole gas that fills leads and splits pipe.

Background

The carbon dioxide cracking device is used for breaking rocks or breaking coal by heating, gasifying and expanding liquid carbon dioxide and then quickly releasing high-pressure gas. The expansion capacity is controllable, the power is high, shock waves are not generated, and the like, so that the expansion device is widely applied to the fields of urban improvement, urban construction, mineral exploitation and the like. In the related technology, the cracking tube is provided with an inflation inlet, and an external gas source is communicated with the inflation inlet, so that carbon dioxide gas in the cracking tube is filled and used. The disadvantages of the related art are that: on the one hand, by adopting the structure in the related technology, the inflation inlet has no automatic air leakage function, so that the filling and the use of the cracking pipe can be realized no matter the cracking pipe is positioned in the cracking hole or the cracking pipe is positioned in the open air. Because the environment for implementing filling operation and use of the fracturing pipe is not limited, an operator can fill and inspire the fracturing pipe in the open environment, and the fracturing power of the fracturing pipe is huge; if the weapon is used as a defense even malicious attack by a lawbreaker, great social security risks exist. On the other hand, by adopting the structure of the related technology, when some cracking pipes can not be blasted, the cracking pipes become 'dumb guns' due to the fact that the inflation inlet does not have the automatic air leakage function, high-pressure gas is stored in the cracking pipes, and the cracking pipes are like timing bombs and have serious potential safety hazards.

Therefore, there is a need to provide a new gas-filled fracturing pipe to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

A hole is filled with a gas cracking tube and comprises a liquid storage tube and an automatic air release valve, wherein the automatic air release valve is arranged at the bottom of the liquid storage tube and is provided with a movable valve core; when the movable valve core is ejected out, the automatic air release valve is in an air release state, and the automatic air release valve is communicated with the inner space of the liquid storage pipe and the outer space of the liquid storage pipe; when the movable valve core is contracted, the automatic air release valve is in an inflatable state, and the automatic air release valve blocks the communication between the inside of the liquid storage pipe and the external space of the liquid storage pipe.

Preferably, the power for contracting the movable valve core is the gravity of the liquid storage pipe.

Preferably, the automatic air release valve further comprises an elastic element, and the power for ejecting the movable valve core is the elastic force of the elastic element.

Preferably, the automatic release valve further comprises a valve body and a valve cover, the valve cover is integrally cover-shaped, a valve body accommodating cavity is formed in the valve cover, the valve cover is fixed at the bottom of the liquid storage pipe, and the valve body accommodating cavity is communicated with the interior of the liquid storage pipe; one end of the valve body is accommodated in the valve body accommodating cavity and is fixedly connected with the valve cover, and the other end of the valve body extends into the liquid storage pipe; a valve core accommodating cavity is formed in the valve body, one end of the movable valve core is arranged in the valve core accommodating cavity, and one end of the movable valve core extends towards the direction close to the valve cover and extends out of the valve cover; an elastic element accommodating cavity is formed in the movable valve core and is communicated with the valve core accommodating cavity and the outer space of the liquid storage pipe; elastic element part or whole accept in elastic element accepts the intracavity, elastic element's one end butt the chamber is acceptd to the case keeps away from a lateral wall of valve gap, still be equipped with the intercommunication in the valve body the inside of stock solution pipe with the chamber is acceptd to the case disappointing hole.

Preferably, the air leakage hole is arranged in a plurality at intervals.

Preferably, the elastic element accommodating cavity is internally provided with a limiting step, and the other end of the elastic element abuts against the limiting step.

Preferably, the automatic air release valve further comprises a first sealing element arranged between the liquid storage pipe and the valve body.

Preferably, the valve body and the bottom of the liquid storage pipe are integrally formed.

Preferably, the valve cover and the liquid storage pipe are integrally formed; or the valve cover is fixedly connected with the liquid storage pipe through a threaded connecting piece or a welding mode.

Preferably, the automatic air release valve further comprises a valve core sealing element arranged between the movable valve core and the valve body, and the valve core sealing element comprises a second sealing element and a third sealing element which are arranged at intervals.

Compared with the prior art, the utility model relates to a send and split pipe can only realize normal dress and use of filling downthehole, implement to sending and fill the dress operation and the environment of use and carried out the restriction to sending the pipe, operating personnel can't send the pipe of splitting to fill dress and enlightening the operation, can effectively avoid sending the pipe of splitting to be regarded as a kind of defense even malicious weapon of attacking by lawless persons, has improved greatly and has sent the security performance that splits the pipe use. The problem of the fracturing pipe is used as the weapon by lawless persons and brings the potential safety hazard of society is solved. When being as a handle the utility model relates to a downthehole gas that fills leads to the burst pipe to fill and adorn the back, if when appearing not blasting phenomenon such as "mute big gun", fill the downthehole gas that fills of gas and lead to the burst pipe and mention or when violently falling, movable valve core can be popped out by elastic element auto-eject, reveals away the inside high-pressure gas through automatic release valve, can not take place accident. The safety performance is greatly improved.

Drawings

FIG. 1 is a view showing the air leakage state of the present invention;

fig. 2 is a diagram illustrating the inflatable state of the present invention.

In the figure:

the valve comprises a liquid storage pipe 1, a valve body 2, a valve cover 3, a valve core 4, an elastic element 5, a first sealing element 6, a second sealing element 7 and a third sealing element 8; a gas release hole 21, a spool accommodating chamber 22; a valve body accommodating chamber 31; an elastic member accommodating chamber 41; a limit step 411.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-2, a hole filled with a gas cracking tube comprises a liquid storage tube 1 and an automatic air release valve, wherein the automatic air release valve is arranged at the bottom of the liquid storage tube 1, and a movable valve core 4 is arranged on the automatic air release valve; when the movable valve core 4 is ejected out, the automatic air release valve is in an air release state, and the automatic air release valve is communicated with the inner space of the liquid storage pipe 1 and the outer space of the liquid storage pipe 1; when the movable valve core 4 is contracted, the automatic air release valve is in an inflatable state, and the automatic air release valve blocks the communication between the inside of the liquid storage pipe 1 and the space outside the liquid storage pipe 1. The power of the contraction of the movable valve core 4 is the gravity of the liquid storage pipe 1. The automatic air release valve further comprises an elastic element 5, and the power for ejecting the movable valve core 4 is the elastic force of the elastic element 5. Specifically, automatic release valve still includes valve body 2, valve gap 3 is whole to be the lid form, be equipped with the valve body in the valve gap 3 and accept chamber 31, valve gap 3 is fixed in 1 bottom of stock solution pipe, valve gap 3 is similar to a nut, and upper portion internal thread, bottom central hole are foraminiferous, and the part external screw thread that stretches out is followed 1 bottom of stock solution pipe to valve body 2, and valve gap 3 screws up the valve body through the screw thread and can make valve body 2 compress tightly first sealing member 3 and play the sealing effect, and the one end that 4 diameters of movable valve core are little can be followed 3 centre holes of valve gap and stretched out to block the one end that 4 diameters of movable valve core are big and. The valve body accommodating cavity 31 is communicated with the interior of the liquid storage pipe 1; one end of the valve body 2 is accommodated in the valve cover accommodating cavity 31 and is fixedly connected with the valve cover 3, and the other end of the valve body 2 extends into the liquid storage pipe 1; a valve core accommodating cavity 22 is formed in the valve body 2, one end of the movable valve core 4 is arranged in the valve core accommodating cavity 22, and one end of the movable valve core 4 extends towards the direction close to the valve cover 3 and extends out of the valve cover 3; an elastic element accommodating cavity 41 is formed in the movable valve core 4, and the elastic element accommodating cavity 41 and a valve core air leakage hole are communicated with the valve core accommodating cavity 22 and the external space of the liquid storage pipe 1; elastic element 5 part accept in elastic element accepts the chamber 41 in, the one end butt of elastic element 5 the chamber 22 is accepted to the case keeps away from a lateral wall of valve gap 3, still be equipped with the intercommunication in the valve body 2 the liquid storage tube 1 inside with the disappointing hole 21 in chamber 22 is accepted to the case. In particular, the elastic element 5 is a compression spring. A limiting step 411 is arranged in the elastic element accommodating cavity 41, and the other end of the elastic element 5 is abutted to the limiting step 411. The automatic air release valve also comprises a first sealing element 6 arranged between the liquid storage pipe 1 and the valve body 2; the automatic air release valve also comprises a valve core sealing element arranged between the movable valve core 4 and the valve body 2. The valve core sealing element comprises a second sealing element 7 and a third sealing element 8 which are arranged at intervals. The first sealing element 6, the second sealing element 7 and the third sealing element 8 are all O-shaped sealing rings.

During the use, work as the utility model relates to an downthehole gas that fills send out split pipe is located and send out the split hole or when violently putting under elastic element 5's the elastic force effect, movable valve core 4 is ejecting, and at this moment, 1 insidely of stock solution pipe receive the chamber 22, elastic element through disappointing hole 21, case and accept behind the chamber 41, with 1 exterior space intercommunication of stock solution pipe, automatic disappointing valve is in disappointing state. At this moment, it is right the utility model relates to a when downthehole gas that fills cracks the pipe and aerifys, gaseous through automatic release valve lets out, can't accomplish the gas filling operation. Therefore, the utility model relates to a send and split pipe can only realize normal dress and use of filling downthehole, implement to sending to split the pipe and fill the dress operation and the environment of use has carried out the restriction, and operating personnel can't send to split the pipe and fill dress and enlighten the operation in open environment, can effectively avoid sending to split the pipe and be regarded as a kind of defense even malicious weapon of attacking by lawless persons, has improved greatly and has sent the security performance who splits the pipe use. The problem of the fracturing pipe is used as the weapon by lawless persons and brings the potential safety hazard of society is solved. When being handled the utility model relates to an downthehole gas of filling leads cracked tube patchhole to send the downthehole back of cracked hole, under the action of gravity of 1 self of stock solution pipe, movable valve element 4 goes upward to compress tightly elastic element 5, at this moment, the disappointing hole 21 is plugged up to movable valve element 4, and second sealing member 7 and third sealing member 8 are located respectively the top and the below of disappointing hole 21 avoid sending the inside gas warp of cracked pipe movable valve element 4 with clearance department between the valve body 2 spills over. That is, at this time, under the action of the gravity of the liquid storage tube 1 itself, the movable valve element 4 is contracted, and the automatic air release valve blocks the communication between the inside of the liquid storage tube 1 and the space outside the liquid storage tube 1. Automatic release valve can self-closing, can be right this moment the utility model relates to an downthehole gas that fills leads to cracked pipe aerifys. When being as a handle the utility model relates to an downthehole gas that fills leads to split pipe fills and adorns the back, if when not blasting phenomenon such as "mute big gun" appears, as long as make and lead to split the pipe bottom and leave ground, movable valve core 4 loses the effect of the 1 gravity of liquid storage pipe, and is down under elastic element 5's effect, and liquid storage pipe 1 is inside through disappointing hole 21, case and accept behind chamber 22, the elastic element accepts chamber 41, with 1 exterior space intercommunication of liquid storage pipe, automatic disappointing valve is in the state of disappointing. Inside high-pressure gas is revealed out through the automatic air escape valve, has improved the security performance greatly. Namely, when the gas filled in the gas filled hole cracks the pipe and is lifted or falls horizontally, the movable valve core 4 can be automatically popped out by the elastic element 5, the gas in the movable valve core can be automatically leaked out, and no accident can occur.

Further, as another embodiment of the present invention, the air release hole 21 is provided in plurality at intervals. This design does benefit to and improves the effect of disappointing, improves efficiency and the homogeneity of disappointing.

The valve cover 3 and the liquid storage pipe 1 can be integrally formed; the valve cover 3 and the liquid storage pipe 1 can also be in other structures, for example, the valve cover 3 and the liquid storage pipe 1 are fixedly connected through a threaded connection piece or a welding mode.

It should also be noted that the valve body 2 can also be designed as a single piece with the bottom of the reservoir 1, in which case the first seal 6 is not required. However, in order to ensure that the valve cap 3 and the reservoir 1 are integrally formed, the valve body 2 and the reservoir 1 must be separate from each other. When the valve body 2 and the bottom of the liquid storage pipe 1 are designed into a whole, the valve cover 3 and the liquid storage pipe 1 must be of a split structure.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A hole is filled with a gas cracking tube and is characterized by comprising a liquid storage tube and an automatic air release valve, wherein the automatic air release valve is arranged at the bottom of the liquid storage tube and is provided with a movable valve core; when the movable valve core is ejected out, the automatic air release valve is in an air release state, and the automatic air release valve is communicated with the inner space of the liquid storage pipe and the outer space of the liquid storage pipe; when the movable valve core is contracted, the automatic air release valve is in an inflatable state, and the automatic air release valve blocks the communication between the inside of the liquid storage pipe and the external space of the liquid storage pipe.

2. The hole-filled gas fracturing tube of claim 1 wherein the motive force for the retraction of the movable spool is the weight of the reservoir tube itself.

3. The hole-filled gas fracturing tube of claim 2 wherein said automatic release valve further comprises a resilient member, the motive force for ejection of said movable core being the elastic force of said resilient member.

4. The hole-filled gas fracturing pipe of claim 3, wherein the automatic release valve further comprises a valve body and a valve cover, the valve cover is in a cover shape as a whole, a valve body accommodating cavity is arranged in the valve cover, the valve cover is fixed at the bottom of the liquid storage pipe, and the valve body accommodating cavity is communicated with the inside of the liquid storage pipe; one end of the valve body is accommodated in the valve body accommodating cavity and is fixedly connected with the valve cover, and the other end of the valve body extends into the liquid storage pipe; a valve core accommodating cavity is formed in the valve body, one end of the movable valve core is arranged in the valve core accommodating cavity, and one end of the movable valve core extends towards the direction close to the valve cover and extends out of the valve cover; an elastic element accommodating cavity is formed in the movable valve core and is communicated with the valve core accommodating cavity and the outer space of the liquid storage pipe; elastic element part or whole accept in elastic element accepts the intracavity, elastic element's one end butt the chamber is acceptd to the case keeps away from a lateral wall of valve gap, still be equipped with the intercommunication in the valve body the inside of stock solution pipe with the chamber is acceptd to the case disappointing hole.

5. A hole-filled gas fracturing tube of claim 4, wherein said relief hole is a plurality of spaced apart holes.

6. The hole-filled gas fracturing tube of claim 5 wherein a stop step is provided in the resilient element receiving cavity, the other end of the resilient element abutting the stop step.

7. The hole-filled gas fracturing tube of claim 6 wherein said automatic release valve further comprises a first seal disposed between said reservoir and said valve body.

8. The hole-filled gas fracturing tube of claim 6 wherein the valve body is integrally formed with the bottom of the reservoir tube.

9. The hole-filled gas fracturing tube of claim 7 wherein the valve cap is integrally formed with the reservoir tube; or the valve cover is fixedly connected with the liquid storage pipe through a threaded connecting piece or a welding mode.

10. The hole-filled gas fracturing tube of claim 8 or 9 wherein said automatic release valve further comprises a spool seal disposed between said movable spool and said valve body, said spool seal comprising a second seal and a third seal disposed in spaced relation.