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CN-224230863-U - Liquid oxygen gas fracturing device

CN224230863UCN 224230863 UCN224230863 UCN 224230863UCN-224230863-U

Abstract

The utility model discloses a liquid oxygen gas fracturing device, which relates to the technical field of rock breaking and comprises a flexible outer sleeve, a liquid inlet pipe, an exhaust pipe and a plurality of oxygen leakage holes, wherein one end of the liquid inlet pipe penetrates through the flexible outer sleeve to extend into the inner bottom of the flexible outer sleeve, the other end of the liquid inlet pipe is positioned outside the flexible outer sleeve, one end of the exhaust pipe penetrates through the flexible outer sleeve to extend into the inner top of the flexible outer sleeve, and the other end of the exhaust pipe is positioned outside the flexible outer sleeve, and a plurality of oxygen leakage holes are formed in the side wall of the liquid inlet pipe positioned inside the flexible outer sleeve. According to the liquid oxygen gas fracturing device, the plurality of oxygen leakage holes are formed in the side wall of the liquid inlet pipe, and the design of the spiral coil pipe and the oxygen permeation holes is added in the second embodiment, so that liquid oxygen can enter the flexible outer sleeve from a plurality of positions, and compared with the existing mode of conveying liquid oxygen through a single pipeline, the liquid oxygen gas fracturing device can fill the whole fracturing pipe inner space more quickly and uniformly, the filling efficiency is greatly improved, the operation time is effectively shortened, and the energy consumption is reduced.

Inventors

  • Ming Yunhao

Assignees

  • 四川云浩明盛建设工程有限公司

Dates

Publication Date
20260512
Application Date
20250728

Claims (6)

  1. 1. A liquid oxygen gas fracturing device is characterized by comprising A flexible outer sleeve (1); The liquid inlet pipe (2), one end of the liquid inlet pipe (2) penetrates through the flexible outer sleeve (1) and stretches into the inner bottom of the flexible outer sleeve (1), and the other end of the liquid inlet pipe is positioned outside the flexible outer sleeve (1); One end of the exhaust pipe (3) penetrates through the flexible outer sleeve (1) and stretches into the inner top of the flexible outer sleeve (1), and the other end of the exhaust pipe is positioned outside the flexible outer sleeve (1); The device comprises a flexible outer sleeve (1), a plurality of oxygen leakage holes (4) are formed in the side wall of a liquid inlet pipe (2) inside the flexible outer sleeve (1), a plurality of combustibles (5) are sleeved outside the liquid inlet pipe (2), a resistance wire ignition head (6) is fixedly connected to the side wall of the combustibles (5), a lead wire (7) is electrically connected to the end part of the resistance wire ignition head (6), and one end of the lead wire (7) away from the resistance wire ignition head (6) penetrates to the outside of the flexible outer sleeve (1) to be connected with an ignition initiator.
  2. 2. The liquid oxygen gas fracturing device according to claim 1, wherein the plurality of oxygen leakage holes (4) are distributed at equal intervals along the length direction of the liquid inlet pipe (2).
  3. 3. A liquid oxygen gas fracturing device according to claim 2, characterized in that the distance between adjacent oxygen leakage holes (4) is 20cm.
  4. 4. A liquid oxygen gas fracturing device according to claim 1, characterized in that said combustibles (5) consist of toilet paper rolls.
  5. 5. The liquid oxygen gas fracturing device according to claim 1, wherein the flexible outer sleeve (1) is made of polyethylene.
  6. 6. The liquid oxygen gas fracturing device of claim 1, further comprising a spiral coil (8) arranged at the inner bottom of the flexible outer sleeve (1), wherein one end of the spiral coil (8) is communicated with the outer wall of the tail end of the liquid inlet pipe (2), a plurality of oxygen permeation holes (9) are formed in the outer wall of the spiral coil (8), and the oxygen permeation holes (9) are upwards arranged.

Description

Liquid oxygen gas fracturing device Technical Field The utility model relates to the technical field of rock breaking, in particular to a liquid oxygen gas fracturing device. Background In the fields of rock exploitation, mine engineering, geological exploration and the like, rock fracturing technology is widely applied to improving the breaking efficiency and resource recovery rate of rock. The conventional liquid oxygen gas cracking device can introduce liquid oxygen into the cracking tube through the liquid oxygen conveying tube, so that the rock cracks by utilizing the low-temperature characteristic of the liquid oxygen to react, but has obvious defects in practical application. In particular, the existing devices rely on only a single pipe to deliver liquid oxygen, which makes the filling process of liquid oxygen in the cracking tube extremely slow, and makes it difficult to quickly and uniformly fill the whole internal space of the cracking tube, resulting in low filling efficiency. The low-efficiency filling mode not only prolongs the operation time and increases the energy consumption, but also can influence the fracturing effect due to uneven liquid oxygen distribution, thereby reducing the efficiency and quality of rock breaking. For this reason, improvements to the prior art devices are needed. Disclosure of utility model The utility model aims to provide a liquid oxygen gas fracturing device to solve the problems in the background technology. In order to solve the problems, the technical scheme adopted by the utility model is as follows: A liquid oxygen gas fracturing device, comprising A flexible outer sleeve; One end of the liquid inlet pipe penetrates through the flexible outer sleeve and extends into the inner bottom of the flexible outer sleeve, and the other end of the liquid inlet pipe is positioned outside the flexible outer sleeve; One end of the exhaust pipe penetrates through the flexible outer sleeve and extends into the inner top of the flexible outer sleeve, and the other end of the exhaust pipe is positioned outside the flexible outer sleeve; The liquid inlet pipe is arranged on the inner side wall of the flexible outer sleeve, a plurality of oxygen leakage holes are formed in the side wall of the liquid inlet pipe, a plurality of combustibles are sleeved outside the liquid inlet pipe, a resistance wire ignition head is fixedly connected to the side wall of the combustibles, a wire is electrically connected to the end of the resistance wire ignition head, and one end of the wire, far away from the resistance wire ignition head, penetrates through the outer part of the flexible outer sleeve and is connected with an ignition initiator. Preferably, a plurality of oxygen leakage holes are distributed at equal intervals along the length direction of the liquid inlet pipe. Preferably, the distance between adjacent oxygen leakage holes is 20cm. Preferably, the combustible substance is constituted by a toilet paper roll. Preferably, the flexible outer sleeve is made of polyethylene. Preferably, the device further comprises a spiral coil arranged at the inner bottom of the flexible outer sleeve, one end of the spiral coil is communicated with the outer wall of the tail end of the liquid inlet pipe, a plurality of oxygen permeation holes are formed in the outer wall of the spiral coil, and the oxygen permeation holes are upward. Compared with the prior art, the utility model has the following beneficial effects: According to the utility model, the side wall of the liquid inlet pipe is provided with the plurality of oxygen leakage holes, and the design of the spiral coil and the oxygen permeation holes is added in the second embodiment, so that liquid oxygen can enter the flexible outer sleeve from a plurality of positions, and compared with the existing mode of conveying the liquid oxygen by a single pipeline, the liquid oxygen filling device can fill the whole internal space of the cracking pipe more quickly and uniformly, so that the filling efficiency is greatly improved, the operation time is effectively shortened, and the energy consumption is reduced. Drawings FIG. 1 is a schematic diagram of an embodiment of a liquid oxygen gas fracturing device; FIG. 2 is a schematic view of a partial structure of an embodiment of a liquid oxygen fracturing device; FIG. 3 is a schematic diagram of a liquid oxygen gas fracturing device with two spiral coils. The device comprises a flexible outer sleeve, a liquid inlet pipe, an exhaust pipe, an oxygen leakage hole, a combustible substance, a resistance wire ignition head, a wire, a spiral coil pipe and an oxygen permeation hole, wherein the flexible outer sleeve is 1, the liquid inlet pipe, the exhaust pipe, the oxygen leakage hole, the combustible substance, the resistance wire ignition head, the wire, the spiral coil pipe and the oxygen permeation hole are 4, and the oxygen permeation hole is 9. Detailed Description The following description of the