CN219034714U

CN219034714U - Rock gas expansion cracking pipe

Info

Publication number: CN219034714U
Application number: CN202320225553.1U
Authority: CN
Inventors: 潘如杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-05-16
Anticipated expiration: 2033-02-13

Abstract

The utility model provides a rock gas expansion fracturing pipe, and relates to the technical field of expansion fracturing equipment. The rock gas expansion cracking pipe comprises a cracking pipe, wherein a connecting block is arranged at the top of the cracking pipe, and is provided with a screw hole and a first vent hole for communicating the screw hole with the inside of the cracking pipe; the bottom of the cracking tube is provided with a mounting seat, the outer side wall of the mounting seat is provided with external threads matched with the screw holes, the mounting seat is provided with a guiding cavity with an opening at the bottom, and the mounting seat is provided with a second ventilation hole for communicating the guiding cavity with the inside of the cracking tube. The utility model can connect a plurality of fracturing pipes in series to form a whole, further can adjust the whole length of the fracturing pipes after being connected in series according to the depth of the actual fracturing holes, has simple operation and is convenient for the expansion fracturing of objects such as rocks.

Description

Rock gas expansion cracking pipe

Technical Field

The utility model relates to the technical field of expansion fracturing equipment, in particular to a rock gas expansion fracturing pipe.

Background

The carbon dioxide cracking pipe is formed by heating and expanding carbon dioxide and then rapidly releasing high-pressure gas so as to achieve the purpose of breaking rock or coal dropping. Because the expansion capability is controllable, the power is high, and shock waves are not generated, the method is widely applied to the fields of urban improvement, urban construction, mineral exploitation and the like.

In the related art, the carbon dioxide cracking tube is used singly, namely, one cracking tube is placed in one cracking hole, and after gas filling is carried out on site, expansion is initiated, so that the cracking operation is realized. However, when the depth of the fracturing hole is deep, the conventional single fracturing pipe cannot meet the requirement, the conventional single fracturing pipe can be considered to be connected in series to prolong the whole length, but the technical problems of inflation and encapsulation of the multiple fracturing pipes after being connected in series cannot be solved in the related technology, so that the method cannot be effectively popularized. In order to solve the technical problem, the scheme in the related art is as follows: and (3) according to different fracturing hole depths, specially manufacturing fracturing pipes with various lengths. The method has the defects that the equipment cost is greatly increased, the product specification is complicated, and the on-site management and standardization are not facilitated.

Disclosure of Invention

The utility model aims to provide a rock gas expansion cracking pipe, which can be used for connecting a plurality of cracking pipes in series to form a whole, so that the whole length of the cracking pipes after being connected in series can be adjusted according to the depth of an actual cracking hole, the operation is simple, and the expansion cracking of objects such as rock is facilitated.

Embodiments of the present utility model are implemented as follows:

the embodiment of the application provides a rock gas expansion cracking pipe, which comprises a cracking pipe, wherein a connecting block is arranged at the top of the cracking pipe, and is provided with a screw hole and a first vent hole for communicating the screw hole with the inside of the cracking pipe;

the bottom of the cracking tube is provided with a mounting seat, the outer side wall of the mounting seat is provided with external threads matched with the screw holes, the mounting seat is provided with a guiding cavity with an opening at the bottom, and the mounting seat is provided with a second ventilation hole for communicating the guiding cavity with the inside of the cracking tube.

Further, in some embodiments of the present utility model, the connector further includes a connecting seat, an external thread matching with the screw hole is provided on an outer side wall of the connecting seat, and a conveying pipe communicating with the screw hole is provided on the connecting seat.

Further, in some embodiments of the utility model, the delivery tube is provided with a one-way valve.

Further, in some embodiments of the present utility model, a sealing plug is slidably disposed in the guiding chamber, and a length of the sealing plug is greater than a length of the guiding chamber; the connecting block is provided with a containing cavity matched with the sealing plug, and the containing cavity is positioned between the screw hole and the first vent hole and is communicated with the screw hole and the first vent hole; the sealing plug is provided with a third vent hole penetrating through the sealing plug.

Further, in some embodiments of the present utility model, a spring is disposed in the guiding chamber, one end of the spring is connected to the sealing plug, and the other end of the spring is connected to the mounting seat.

Further, in some embodiments of the present utility model, a sealing ring is sleeved on an outer side wall of the sealing plug, and the sealing ring abuts against the mounting seat.

Further, in some embodiments of the present utility model, the number of the sealing rings is two and the sealing rings are spaced apart, and the distance between the two sealing rings is larger than the diameter of the second ventilation hole.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

the embodiment of the utility model provides a rock gas expansion cracking pipe, which comprises a cracking pipe, wherein a connecting block is arranged at the top of the cracking pipe, and is provided with a screw hole and a first vent hole for communicating the screw hole with the inside of the cracking pipe;

The multiple fracturing pipes can be connected in series to form a whole, the whole length of the fracturing pipes after being connected in series can be adjusted according to the depth of the actual fracturing holes, the operation is simple, and the expansion fracturing of objects such as rocks is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a partial cross-sectional view of a rock gas expansion fracturing pipe provided in an embodiment of the present utility model prior to use;

FIG. 2 is a partial cross-sectional view of a rock gas expansion fracturing pipe in accordance with an embodiment of the present utility model in use;

FIG. 3 is a cross-sectional view of a mounting seat position provided by an embodiment of the present utility model;

fig. 4 is a partial cross-sectional view of three rock gas expansion fracturing tubes in series, according to an embodiment of the present utility model.

Icon: 1-cracking tube; 2-connecting blocks; 3-screw holes; 4-a first vent; 5-mounting seats; 6-a guide chamber; 7-a second vent; 8-connecting seats; 9-a conveying pipe; 10-a one-way valve; 11-sealing plug; 12-a receiving cavity; 13-a third vent; 14-a spring; 15-sealing rings.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present utility model is conventionally put when used, it is merely for convenience of describing the present utility model and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like, if any, do not denote a requirement that the component be absolutely horizontal or vertical, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present utility model, "plurality" means at least 2.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Examples

Referring to fig. 1-4, the present embodiment provides a rock gas expansion cracking pipe, which includes a cracking pipe 1, a connecting block 2 is disposed at the top of the cracking pipe 1, the connecting block 2 is provided with a screw hole 3 and a first vent hole 4 for communicating the screw hole 3 with the inside of the cracking pipe 1;

the bottom of the cracking tube 1 is provided with a mounting seat 5, the outer side wall of the mounting seat 5 is provided with external threads matched with the screw hole 3, the mounting seat 5 is provided with a guiding chamber 6 with an opening at the bottom, and the mounting seat 5 is provided with a second ventilation hole 7 for communicating the guiding chamber 6 with the inside of the cracking tube 1.

The gas-tight fracture-inducing device further comprises a connecting seat 8, wherein external threads matched with the screw holes 3 are formed in the outer side wall of the connecting seat 8, a conveying pipe 9 communicated with the screw holes 3 is arranged on the connecting seat 8, a one-way valve 10 is arranged on the conveying pipe 9, and the one-way valve 10 can only allow gas to be conveyed into the fracture-inducing pipe 1 from the conveying pipe 9.

In practical use, when only one cracking tube 1 is used, the connecting seat 8 can be installed on the top of the cracking tube 1, and the connecting seat 8 is fixed on the connecting block 2 on the top of the cracking tube 1 in a threaded connection mode. The second ventilation hole 7 at the bottom of the cracking tube 1 is sealed, the cracking tube 1 is placed in the cracking hole of the rock, so that carbon dioxide is conveyed into the connecting block 2 through the conveying pipe 9 by the conveying device, and the carbon dioxide enters the cracking tube 1 through the first ventilation hole 4 of the connecting block 2, and the operation is convenient.

When the depth of the fracturing hole is deep, a plurality of fracturing tubes 1 can be used, the plurality of fracturing tubes 1 are connected in series, as shown in fig. 4, three fracturing tubes 1 are taken as an example, when the plurality of fracturing tubes 1 are connected in series, the mounting seat 5 of the top fracturing tube 1 is inserted into the connecting block 2 of the bottom fracturing tube 1 and connected in a threaded manner to realize fastening, so that the two fracturing tubes 1 are connected in series, and after the plurality of fracturing tubes 1 are connected in series, the connecting seat 8 is mounted on the topmost fracturing tube 1. The fracturing pipe 1 is integrally placed in a fracturing hole to fracture the rock. Therefore, the overall length of the fracturing pipe 1 after being connected in series can be adjusted according to the depth of the actual fracturing hole, the operation is simple, and the expansion fracturing of objects such as rocks is facilitated.

As shown in fig. 1-4, in some embodiments of the present utility model, a sealing plug 11 is slidably disposed in the guiding chamber 6, and the length of the sealing plug 11 is greater than the length of the guiding chamber 6; the connecting block 2 is provided with a containing cavity 12 matched with the sealing plug 11, and the containing cavity 12 is positioned between the screw hole 3 and the first vent hole 4 and is communicated with the screw hole 3 and the first vent hole 4; the sealing plug 11 is provided with a third vent hole 13 penetrating the sealing plug 11.

A spring 14 is provided in the guide chamber 6, one end of the spring 14 is connected to the sealing plug 11, and the other end of the spring 14 is connected to the mount 5.

When the inflation ports of the traditional inflation cracking tubes have no automatic air leakage function and some cracking tubes 1 are in a problem after being used and cannot be blasted, the cracking tubes 1 become 'dumb cannons' due to the fact that the inflation ports of the traditional inflation cracking tubes have no automatic air leakage function, and high-pressure air is stored in the cracking tubes 1, like a timing bomb, so that serious potential safety hazards exist.

Before the utility model is used, as shown in fig. 1, under the action of the elasticity of the spring 14, the spring 14 pushes the sealing plug 11 to move downwards along the guide chamber 6, at the moment, the second vent hole 7 loses the shielding of the sealing plug 11, so that the gas in the cracking tube 1 can be discharged through the second vent hole 7, the guide chamber 6 and the third vent hole 13 in sequence.

So in the use, after placing the pipe that splits 1 in the hole that splits, as shown in fig. 2, the pipe that splits 1 slides down along the hole that splits under the effect of gravity until the sealing plug 11 that splits 1 bottom and the rock at hole bottom butt of hole, so under the holistic gravity effect of pipe that splits 1, the pipe that splits 1 extrudes spring 14, spring 14 compresses and shortens, sealing plug 11 upwards slides for direction cavity 6 this moment until sealing plug 11 top and mount pad 5 butt, sealing plug 11 shelters from second vent 7 this moment, the inside gas of pipe that splits 1 can not spill over through second vent 7, realize the seal.

When the cracking tube 1 is in a problem after use and cannot be exploded, the cracking tube 1 can be moved upwards, so that after the extrusion of the gravity of the cracking tube 1 is lost, the spring 14 stretches and pushes the sealing plug 11 to slide downwards to a state shown in fig. 1, and at the moment, the gas in the cracking tube 1 can be discharged through the third vent hole 13, so that the potential safety hazard is reduced.

When a plurality of the cracking tubes 1 are connected in series, the sealing plug 11 of the top cracking tube 1 can be inserted into the accommodating cavity 12 of the bottom cracking tube 1, as shown in fig. 4, so that the top cracking tube 1 and the bottom cracking tube 1 can be conveniently communicated.

As shown in fig. 1 to 4, in some embodiments of the present utility model, a sealing ring 15 is sleeved on the outer side wall of the sealing plug 11, and the sealing ring 15 abuts against the mounting seat 5. The number of the sealing rings 15 is two and the two sealing rings 15 are arranged at intervals, and the distance between the two sealing rings 15 is larger than the diameter of the second ventilation hole 7.

According to the utility model, the sealing ring 15 is arranged, and the sealing ring 15 can be a rubber ring, so that the sealing of the joint between the outer side wall of the sealing plug 11 and the mounting seat 5 can be realized through the sealing ring 15, and the gas leakage is prevented.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model, and it will be apparent to those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiment, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A rock gas expansion fracturing pipe comprising a fracturing pipe, characterized in that: the top of the cracking pipe is provided with a connecting block, and the connecting block is provided with a screw hole and a first vent hole for communicating the screw hole with the inside of the cracking pipe;

the bottom of the cracking tube is provided with a mounting seat, the outer side wall of the mounting seat is provided with external threads matched with the screw holes, the mounting seat is provided with a guide cavity with an opening at the bottom, and the mounting seat is provided with a second ventilation hole used for communicating the guide cavity with the inside of the cracking tube.

2. A rock gas expansion fracturing pipe according to claim 1, wherein: still include the connecting seat, the connecting seat lateral wall be equipped with screw complex external screw thread, the connecting seat be equipped with the conveyer pipe of screw intercommunication.

3. A rock gas expansion fracturing pipe according to claim 2, wherein: the conveying pipe is provided with a one-way valve.

4. A rock gas expansion fracturing pipe according to claim 1, wherein: a sealing plug is slidably arranged in the guide cavity, and the length of the sealing plug is longer than that of the guide cavity; the connecting block is provided with an accommodating cavity matched with the sealing plug, and the accommodating cavity is positioned between the screw hole and the first vent hole and is communicated with the screw hole and the first vent hole; the sealing plug is provided with a third vent penetrating through the sealing plug.

5. A rock gas expansion fracturing pipe according to claim 4, wherein: the guide cavity is internally provided with a spring, one end of the spring is connected with the sealing plug, and the other end of the spring is connected with the mounting seat.

6. A rock gas expansion fracturing pipe according to claim 4, wherein: the sealing plug is characterized in that a sealing ring is sleeved on the outer side wall of the sealing plug, and the sealing ring is abutted to the mounting seat.

7. A rock gas expansion cracking tube according to claim 6, wherein: the number of the sealing rings is two, the sealing rings are arranged at intervals, and the distance between the two sealing rings is larger than the diameter of the second ventilation hole.