A liquid oxygen energy-based expansion-induced fracturing device

Abstract

The utility model discloses an expansion fracturing device based on liquid oxygen energy relates to oxygen fracturing pipe technical field, and its technical key points include the pipe body, and the pipe body includes the first filling layer, and the outside fixed connection of first filling layer has the second filling layer, and the outside fixed connection of second filling layer has the third filling layer, and the outside fixed connection of third filling layer has the outer layer, and the pipe body top fixed connection has the sealing cover, is provided with the liquid inlet subassembly on the sealing cover, and the sealing cover top is provided with the insertion hole, and the insertion hole is installed with electronic match head, and the first filling layer is made of sponge material, and the second filling layer is made of paper scrap material, and the third filling layer is made of carbon powder material, and the technical effect is that the inside oxygen gas reacts with the first filling layer, the second filling layer and the third filling layer when detonation, so that the breaking effect is increased, the liquid oxygen that enters through the liquid inlet subassembly is dispersed in the inside of the pipe body quickly, the liquid oxygen is divided into two channels, the high-pressure liquid oxygen is conveniently and quickly passed in, and the rock stratum breaking in the later period is convenient.

Description

Technical Field

[0001] This utility model relates to the field of oxygen fracturing tube technology, specifically an expansion fracturing device based on liquid oxygen energy. Background Technology

[0002] An oxygen fracturing tube is a device that uses the high temperature and pressure of oxygen to generate energy and ignite a fire. It mainly consists of an initiator, a liquid oxygen tank, and pipelines. Oxygen fracturing tubes are widely used in road construction, mining, and other fields for tasks such as rock breaking, tunnel excavation, and building demolition.

[0003] When using an oxygen fracturing tube, high-pressure liquid oxygen needs to be introduced into the fracturing tube and detonated by an electronic igniter to fracture the rock strata, making it easier for subsequent hydraulic equipment to excavate the fractured cracks. However, when detonating the fracturing tube, it cannot react with the liquid oxygen, resulting in poor detonation and ineffective rock fracturing.

[0004] Therefore, it is necessary to provide an expansion fracturing device based on liquid oxygen energy to solve the above-mentioned technical problems. Utility Model Content

[0005] Technical problems to be solved The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0006] To address the shortcomings of existing technologies, this invention provides an expansion fracturing device based on liquid oxygen energy, which solves the problem that the fracturing tube cannot react with liquid oxygen when detonating, resulting in poor detonation and rock fracturing effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an expansion fracturing device based on liquid oxygen energy, comprising a tube body, the tube body comprising a first filling layer, a second filling layer fixedly connected to the outside of the first filling layer, a third filling layer fixedly connected to the outside of the second filling layer, an outer layer fixedly connected to the outside of the third filling layer, a sealing cap fixedly connected to the top of the tube body, a liquid inlet assembly provided on the sealing cap, an insertion hole provided on the top of the sealing cap, and an electronic match head installed in the insertion hole.

[0008] Preferably, the first filling layer is made of sponge material, the second filling layer is made of paper scrap material, and the third filling layer is made of toner material.

[0009] Preferably, the liquid inlet assembly includes an air outlet pipe fixedly disposed on the top of the sealing cover, an air inlet main pipe fixedly connected inside the air outlet pipe, and an air inlet branch pipe connected to the top of the sealing cover.

[0010] Preferably, the sealing cover has a first cavity inside, and the bottom of the first cavity has a through hole.

[0011] Preferably, the bottom of the intake branch pipe is connected to the first cavity inside the sealing cover.

[0012] Preferably, a second cavity is provided inside the tube body, and the bottom through hole of the sealing cap is connected to the second cavity.

[0013] Preferably, the inner wall of the tube is provided with a plurality of dispersion holes, which are connected to the second cavity.

[0014] Compared with the prior art, the present invention provides a method with the following beneficial effects: I. This utility model utilizes the combustible materials of sponge, paper scraps, and carbon powder inside the tube. When fracturing rock strata, an electronic match head is installed inside the tube. High-pressure liquid oxygen is injected into the tube, and then the tube is ignited by a remotely controlled electronic igniter. During the ignition, the oxygen inside reacts with the first, second, and third filling layers, thereby increasing the fracturing effect.

[0015] II. Before injecting liquid oxygen, this utility model first connects the high-pressure liquid oxygen tank to the main inlet pipe and the branch inlet pipe on the sealing cap. The connected pipes are equipped with valves, and the outlet pipe is equipped with a valve on the outside. When in use, the valves are opened, allowing a portion of the liquid oxygen in the high-pressure liquid oxygen tank to directly enter the pipe body through the main inlet pipe, while the other portion of liquid oxygen enters the first cavity inside the sealing cap through the branch inlet pipe, and then enters the second cavity inside the pipe body through the through hole at the bottom of the first cavity. This allows the liquid oxygen inside the second cavity to enter the pipe body through the dispersion hole, facilitating the rapid dispersion of the liquid oxygen inside the pipe body. This divides the entry of liquid oxygen into two channels, facilitating the rapid introduction of high-pressure liquid oxygen and facilitating subsequent rock strata fracturing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model; Fig. 2This is a schematic diagram of the liquid inlet assembly structure of this utility model; Fig. 3 This is a schematic diagram of the tank structure of this utility model; Fig. 4 This is a schematic diagram illustrating the use of this utility model.

[0018] In the picture: 1. Tube body; 101. First filling layer; 102. Second filling layer; 103. Third filling layer; 104. Outer layer; 2. Sealing cap; 3. Liquid inlet assembly; 31. Air outlet pipe; 32. Main air inlet pipe; 33. Branch air inlet pipe; 34. First cavity; 35. Through hole; 4. Electronic match head; 5. First cavity; 6. Dispersion hole. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0022] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] This utility model provides a technical solution: Please see Figs. 1-4An expansion fracturing device based on liquid oxygen energy includes a tube body 1. The tube body 1 includes a first filling layer 101. A second filling layer 102 is fixedly connected to the outside of the first filling layer 101. A third filling layer 103 is fixedly connected to the outside of the second filling layer 102. An outer layer 104 is fixedly connected to the outside of the third filling layer 103. A sealing cap 2 is fixedly connected to the top of the tube body 1. A liquid inlet assembly 3 is provided on the sealing cap 2. An insertion hole is opened on the top of the sealing cap 2, and an electronic match head 4 is installed in the insertion hole.

[0024] The first filling layer 101 is made of sponge material, the second filling layer 102 is made of paper scrap material, and the third filling layer 103 is made of toner material.

[0025] It should be noted that the sponge material, paper scrap material, and carbon powder material inside the tube body 1 are all flammable materials. When fracturing the rock strata, an electronic match head 4 is installed inside the tube body 1. High-pressure liquid oxygen is injected into the tube body 1 (the equipment and pipeline for injecting high-pressure liquid oxygen are disassembled and moved to a safe position during detonation, and the lead wire of the electronic match head 4 is pulled to a safe distance for detonation to avoid accidents). Then, the tube body 1 is detonated by remotely controlling an electronic igniter. During detonation, the oxygen inside reacts with the first filling layer 101, the second filling layer 102, and the third filling layer 103, which increases the fracturing effect.

[0026] Furthermore, the liquid inlet assembly 3 includes an air outlet pipe 31 fixedly disposed on the top of the sealing cover 2, an air inlet main pipe 32 fixedly connected inside the air outlet pipe 31, and an air inlet branch pipe 33 connected to the top of the sealing cover 2.

[0027] The sealing cover 2 has a first cavity 34 inside, and a through hole 35 is provided at the bottom of the first cavity 34.

[0028] The bottom of the intake manifold 33 is connected to the first cavity 34 inside the sealing cover 2.

[0029] The tube body 1 has a second cavity 5 inside, and the bottom through hole 35 of the sealing cap 2 is connected to the second cavity 5.

[0030] Multiple dispersion holes 6 are provided on the inner wall of the tube body 1, and the dispersion holes 6 are connected to the second cavity 5.

[0031] It should be noted that before injecting liquid oxygen, the high-pressure liquid oxygen tank is first connected to the main inlet pipe 32 and the branch inlet pipe 33 on the sealing cover 2. The connected pipes are equipped with valves, and the outlet pipe 31 is equipped with a valve on the outside. When in use, the valves are opened, so that part of the liquid oxygen in the high-pressure liquid oxygen tank directly enters the pipe body 1 through the main inlet pipe 32, and the other part of the liquid oxygen enters the first cavity 34 inside the sealing cover 2 through the branch inlet pipe 33, and enters the second cavity 5 inside the pipe body 1 through the through hole 35 at the bottom of the first cavity 34. The liquid oxygen in the second cavity 5 enters the pipe body 1 through the dispersion hole 6, so that the liquid oxygen that enters can be quickly dispersed on the inside of the pipe body 1. This divides the entry of liquid oxygen into two channels, which facilitates the rapid introduction of high-pressure liquid oxygen and facilitates the subsequent rock strata fracturing.

[0032] In use, the operator first places the pipe body 1 into the pre-drilled hole in the rock strata. Then, the main intake pipe 32 and the branch intake pipe 33 are connected to the high-pressure liquid oxygen tank, and the valves are opened. This allows a portion of the liquid oxygen in the high-pressure liquid oxygen tank to enter the pipe body 1 directly through the main intake pipe 32, while the remaining liquid oxygen enters the first cavity 34 inside the sealing cap 2 through the branch intake pipe 33. The liquid oxygen then enters the second cavity 5 inside the pipe body 1 through the bottom through-hole 35 of the first cavity 34. Finally, the liquid oxygen in the second cavity 5 enters the pipe body 1 through the dispersion hole 6, facilitating the flow of liquid oxygen into the pipe body 1. The liquid oxygen is rapidly dispersed inside the tube 1, dividing the entry of liquid oxygen into two channels. This facilitates the rapid introduction of high-pressure liquid oxygen, which is beneficial for subsequent rock strata fracturing. The air inside the tube 1 is discharged through the vent pipe 31. During detonation, the high-pressure hydraulic tank and connecting pipes are disassembled and moved to a safe position. Then, the electronic igniter is controlled to detonate the tube 1, facilitating the fracturing operation of the rock strata. During detonation, the first filling layer 101, the second filling layer 102, and the third filling layer 103 are all made of flammable materials, which increases the fracturing effect of the tube 1.

[0033] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. An expansion fracturing device based on liquid oxygen energy, characterized in that, The tube includes a tube body (1), which includes a first filling layer (101), a second filling layer (102) fixedly connected to the outside of the first filling layer (101), a third filling layer (103) fixedly connected to the outside of the second filling layer (102), an outer layer (104) fixedly connected to the outside of the third filling layer (103), a sealing cap (2) fixedly connected to the top of the tube body (1), an inlet assembly (3) provided on the sealing cap (2), an insertion hole opened on the top of the sealing cap (2), and an electronic match head (4) installed in the insertion hole.

2. The expansion fracturing device based on liquid oxygen energy according to claim 1, characterized in that: The first filling layer (101) is made of sponge material, the second filling layer (102) is made of paper scrap material, and the third filling layer (103) is made of toner material.

3. The expansion fracturing device based on liquid oxygen energy according to claim 1, characterized in that: The liquid inlet assembly (3) includes an air outlet pipe (31) fixedly installed on the top of the sealing cover (2), an air inlet main pipe (32) is fixedly connected inside the air outlet pipe (31), and an air inlet branch pipe (33) is connected to the top of the sealing cover (2).

4. The expansion fracturing device based on liquid oxygen energy according to claim 3, characterized in that: The sealing cap (2) has a first cavity (34) inside, and a through hole (35) is provided at the bottom of the first cavity (34).

5. The expansion fracturing device based on liquid oxygen energy according to claim 3, characterized in that: The bottom of the intake branch pipe (33) is connected to the first cavity (34) inside the sealing cover (2).

6. The expansion fracturing device based on liquid oxygen energy according to claim 1, characterized in that: The tube body (1) has a second cavity (5) inside, and the bottom through hole (35) of the sealing cap (2) is connected to the second cavity (5).

7. The expansion fracturing device based on liquid oxygen energy according to claim 1, characterized in that: The inner wall of the tube (1) is provided with a plurality of dispersion holes (6), which are connected to the second cavity (5).

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