Integrated underwater liquid oxygen gas explosion glass steel fracturing device

Abstract

The utility model discloses the technical field of fracturing ware's integrated underwater liquid oxygen gas explosion glass steel fracturing ware, including upper casing, lower casing and integrated cover, the top of upper casing is detachably connected with integrated cover, and the bottom of upper casing is detachably connected with lower casing, the integrated cover includes the fixed lid that is connected with upper casing, the inside joint of fixed lid has apron, the pipe column and nut of sliding through fixed lid are welded on apron respectively, the nut is used for connecting external push rod, the making material of upper casing and lower casing is provided with a layer of grid cloth, five layers of knitting felt, a layer of grid cloth and a layer of surface felt from inside to outside in proper order, the grid cloth, knitting felt and surface felt all adopt glass fiber to make, the integrated cover adopts stainless steel to make, the utility model solves the current liquid oxygen gas explosion fracturing ware gas explosion effect is relatively poor, and the safety reliability is also lower, and simultaneously is also unfavorable to the processing problem of processing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fracturing device, specifically is integrated underwater liquid oxygen gas explosion glass steel fracturing device. BACKGROUND

[0002] Underwater blasting is an important part of engineering blasting, and is widely used in the fields of port construction, dock construction, channel dredging, water conservancy and hydropower, road and bridge, underwater pipeline laying and other engineering construction in national economic construction and national defense engineering construction. The utility model relates to the technical field of underwater liquid oxygen gas explosion, and the liquid oxygen gas explosion (or air energy expansion fracturing) is a biological fuel core body made of special liquid oxygen gas explosion paper, or combustible material raw materials such as straw powder, wood powder and carbon powder in a certain proportion during air explosion operation, which is loaded into the fracturing device, and the fracturing device is also provided with a liquid injection pipe, an exhaust pipe and an electric ignition device. Then, according to the design, drilling is completed on the target underwater rock body, the assembled fracturing device is pushed into the blast hole at a certain position and is blocked. After power explosion, the ignition head is instantaneously excited by the heat source, the ignition head in the blast hole is ignited rapidly, the combustion range is rapidly expanded, at the same time, the surrounding liquid oxygen is rapidly vaporized after being heated, the volume is rapidly expanded, and a large amount of quasi-static pressure is formed in the blast hole, so that the rock is cracked and moved. Compared with traditional explosive blasting, underwater liquid oxygen gas explosion has low blasting vibration and water impact breaking strength, small influence range, less toxic and harmful products, small harm to aquatic organisms, and is a truly green, environmentally friendly, efficient and safe underwater reef blasting construction technology.

[0003] As the main container of combustible material and liquid oxygen, the fracturing device is a key component of liquid oxygen gas explosion, especially underwater liquid oxygen gas explosion, and is crucial to the operation safety and gas explosion effect of liquid oxygen gas explosion. The existing liquid oxygen gas explosion fracturing device has poor gas explosion effect, low safety and reliability, and is not conducive to processing. Therefore, the technical personnel in the field provide an integrated underwater liquid oxygen gas explosion glass steel fracturing device to solve the problems in the above background technology. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an integrated underwater liquid oxygen gas explosion glass steel fracturing device to solve the problems in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an integrated underwater liquid oxygen gas explosion glass steel fracturing device, comprising an upper shell, a lower shell and an integrated cover, the top end of the upper shell is detachably connected with the integrated cover, and the bottom end of the upper shell is detachably connected with the lower shell.

[0006] The integrated cover comprises a fixed cover connected with the upper shell, a cover plate is clamped in the fixed cover, a pipe column and a nut sliding through the fixed cover are respectively welded on the cover plate, and the nut is used for connecting an external pushing rod.

[0007] Preferably, the manufacturing material of the upper shell and the lower shell is sequentially provided with a layer of grid pressing cloth, five layers of knitted felt, a layer of grid pressing cloth and a layer of surface felt from inside to outside.

[0008] Preferably, the grid pressing cloth, the knitted felt and the surface felt are all made of glass fiber, and the integrated cover is made of stainless steel.

[0009] Preferably, the top end of the upper shell and the lower shell is provided with a stainless steel external thread, and the bottom end of the upper shell and the fixed cover is provided with a stainless steel internal thread matched with the stainless steel external thread.

[0010] Preferably, the outer circle of the upper shell and the lower shell is bonded with a first sealing ring, and the first sealing ring of the outer circle of the lower shell is used for abutting against the bottom end of the upper shell, and the first sealing ring of the outer circle of the upper shell is used for abutting against the bottom end of the upper fixed cover.

[0011] Preferably, two groups of second sealing rings are bonded on the pipe column.

[0012] Preferably, the bottom end of the lower shell is a round head end.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. In the utility model, the glass fiber reinforced plastic is used as the shell material of the fracturing device, and the low-temperature performance is good, and the glass fiber reinforced plastic does not crack in the low-temperature environment of liquid oxygen.

[0015] 2. The shell and the connecting sealing element have good waterproof sealing performance, do not permeate water and do not leak liquid; the shell has a certain strength and can resist deformation under the action of external forces such as water and blockage.

[0016] 3. The shell material of the fracturing device does not produce too much toxic and harmful substance after gas explosion, and has little influence on the environment; the fracturing device has simple structure, is convenient for processing, has reasonable price and is convenient for underwater gas explosion operation.

[0017] 4. The glass fiber reinforced plastic shell material has low heat conduction coefficient and good temperature insulation effect, the effective utilization rate of liquid oxygen is high during gas explosion operation, the underwater liquid oxygen gas explosion operation efficiency is high, and the gas explosion effect is good; the fracturing device is safe and reliable, easy to process and can be applied to the liquid oxygen gas explosion fracturing device structure in general water depth environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a schematic view of the overall structure of the utility model;

[0019] Fig. 2 It is a sectional view of the overall structure of the utility model;

[0020] Fig. 3 It is a top view of the overall structure of the utility model;

[0021] Fig. 4 The material structure of the shell is shown in the drawing.

[0022] In the drawing: 1, upper shell; 2, lower shell; 3, fixed cover; 4, cover plate; 5, pipe column; 6, nut; 7, grid cloth; 8, knitted felt; 9, surface felt; 10, stainless steel external thread; 11, stainless steel internal thread; 12, first sealing ring; 13, second sealing ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figs. 1-4 In the embodiments of the utility model, the integrated underwater liquid oxygen gas explosion glass steel fracturing device comprises an upper shell 1, a lower shell 2 and an integrated cover, the top end of the upper shell 1 is detachably connected with the integrated cover, the bottom end of the upper shell 1 is detachably connected with the lower shell 2, specifically, the integrated cover comprises a fixed cover 3 connected with the upper shell 1, the inside of the fixed cover 3 is clamped with a cover plate 4, the cover plate 4 is respectively welded with a pipe column 5 and a nut 6 which slide through the fixed cover 3, the nut 6 is used for connecting an external pushing rod, the manufacturing material of the upper shell 1 and the lower shell 2 is sequentially provided with a layer of grid cloth 7, five layers of knitted felt 8, a layer of grid cloth 7 and a layer of surface felt 9 from inside to outside, wherein the grid cloth 7, the knitted felt 8 and the surface felt 9 are all made of glass fiber, and the integrated cover is made of stainless steel.

[0025] Glass steel is used as the main material of the shell of the underwater liquid oxygen gas explosion fracturing device, the shell appearance is a cylinder, the pipe wall thickness is about 4mm, the structure is eight cloth ten oil (one layer of surface felt 9 + one layer of grid cloth 7 + five layers of knitted felt 8 + one layer of grid cloth 7), one end is sealed with a glass steel round head, a specially processed steel internal and external thread is used as the middle extension of the pipe, a steel screw cover is used as the sealing top cover of the fracturing device pipe body, a metal pipe column 5 is integrally welded in the middle of the top cover, two annular grooves are processed on the outside of the circular pipe column 5, the second sealing ring 13 is arranged on each annular groove, which is used for sealing with the exhaust pipe, the circular pipe column 5 is connected with the inside of the fracturing device body, which is used for internally penetrating and protecting the liquid inlet pipe and the ignition wire, and is also used as an exhaust passage, the nut 6 is welded on the outside of the sealing top cover, which is used for connecting with the pushing rod, so that the operator can press down or lift up the fracturing device through the pushing rod during underwater operation, and the fracturing device is accurately positioned, and the sealing ring is arranged at each steel internal and external thread connection position of the fracturing device body, so as to ensure the sealing of the fracturing device.

[0026] The top end of the upper shell 1 and the lower shell 2 is provided with stainless steel external thread 10, the bottom end of the upper shell 1 and the fixed cover 3 is provided with stainless steel internal thread 11 matched with the stainless steel external thread 10, the outer circle of the upper shell 1 and the lower shell 2 is bonded with the first sealing ring 12, the first sealing ring 12 of the outer circle of the lower shell 2 is used for abutting against the bottom end of the upper shell 1, the first sealing ring 12 of the outer circle of the upper shell 1 is used for abutting against the bottom end of the upper fixed cover 3, which is convenient for assembling between the components, and ensures the sealing of the whole device.

[0027] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An integrated underwater liquid oxygen explosion fiberglass fracturing device, characterized in that: It includes an upper shell (1), a lower shell (2) and an integrated cover. The top end of the upper shell (1) is detachably connected to the integrated cover, and the bottom end of the upper shell (1) is detachably connected to the lower shell (2). The integrated cover includes a fixed cover (3) connected to the upper housing (1). A cover plate (4) is snapped into the inside of the fixed cover (3). A tube column (5) and a nut (6) that slide through the fixed cover (3) are welded onto the cover plate (4). The nut (6) is used to connect an external push rod.

2. The integrated underwater liquid oxygen explosion fiberglass fracturing device according to claim 1, characterized in that: The upper shell (1) and lower shell (2) are made of materials consisting of a layer of mesh pressing cloth (7), five layers of knitted felt (8), a layer of mesh pressing cloth (7) and a layer of surface felt (9) from the inside out.

3. The integrated underwater liquid oxygen explosion fiberglass fracturing device according to claim 2, characterized in that: The mesh fabric (7), knitted felt (8) and surface felt (9) are all made of glass fiber, and the integrated cover is made of stainless steel.

4. The integrated underwater liquid oxygen explosion fiberglass fracturing device according to claim 3, characterized in that: The top of the upper shell (1) and the lower shell (2) are provided with stainless steel external threads (10), and the bottom of the upper shell (1) and the fixing cover (3) are provided with stainless steel internal threads (11) that match the stainless steel external threads (10).

5. The integrated underwater liquid oxygen explosion fiberglass fracturing device according to claim 4, characterized in that: The outer rings of the upper shell (1) and the lower shell (2) are both bonded with a first sealing ring (12). The first sealing ring (12) of the outer ring of the lower shell (2) is used to abut against the bottom end of the upper shell (1), and the first sealing ring (12) of the outer ring of the upper shell (1) is used to abut against the bottom end of the upper fixed cover (3).

6. The integrated underwater liquid oxygen explosion fiberglass fracturing device according to claim 1, characterized in that: Two sets of second sealing rings (13) are bonded to the tubular column (5).

7. The integrated underwater liquid oxygen explosion fiberglass fracturing device according to claim 1, characterized in that: The bottom end of the lower housing (2) is a rounded end cap.

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