CN218764915U - Underwater expansion rock breaking detonation system - Google Patents

Abstract

The utility model relates to an ocean engineering equipment blasting technical field, in particular to broken rock priming system of expanding under water, including exploder, detonating cord, excitation pipe, send and split pipe and inflation valve, send and split the pipe and include body, upper gland, lower gland and send and split the groove, the pipe wall of body is seted up and is sent and split the groove, the body both ends are equipped with first sub-body, second sub-body and third sub-body respectively in proper order, pass through first circular arc groove transition between first sub-body and the second sub-body, pass through second circular arc groove transition between second sub-body and the third sub-body; the upper plug cover and the lower plug cover are respectively provided with a threaded head, a first limit cover body and a second limit cover body which are connected in sequence; the first limiting cover body is sleeved with a first sealing ring, the second limiting cover body is sleeved with a second sealing ring, after the upper plug cover and the lower plug cover are installed, the periphery of the first sealing ring is attached to the first arc groove, and the periphery of the second sealing ring is attached to the second arc groove. The fracturing pipe can prevent the defect of air leakage generated during filling of liquid carbon dioxide.

Description

Underwater expansion rock breaking detonation system

Technical Field

The utility model belongs to the technical field of the ocean engineering equipment blasting, in particular to broken rock detonating system of inflation under water.

Background

In the construction of reef explosion and barrier removal of water transportation engineering, water conservancy and hydropower engineering, when civil houses, wharfs, bridges, submarine tunnels, oil and gas transmission pipelines, water intake pump rooms and other buildings sensitive to explosion hazards are arranged near an explosion area, static breaking agents, rock drilling rods, impact breaking hammers and other processes are adopted for rock breaking construction, and because the processes have certain vibration and shock waves and certain influence on nearby sensitive buildings and aquatic organisms, many near sensitive building construction projects need to effectively control the shock waves and vibration in water.

Therefore, in the blasting construction operation, the carbon dioxide fracturing device is mainly adopted for blasting at present, the underwater rock breaking construction is carried out by the method, the purpose of breaking rocks can be achieved, meanwhile, the generated shock waves and vibration waves are small, and the protection requirement on surrounding sensitive buildings is met. For example, patent document 201620442078.3 discloses an outer cylinder of a disposable carbon dioxide fracturing device, which is composed of a plug, an expansion pipe and a thickened end face. The existing plug and the expansion pipe and the thickened end face are in sealing connection through welding, but when liquid carbon dioxide is filled, the expansion pipe is pulled by the liquid carbon dioxide when the expansion pipe is filled with the liquid carbon dioxide, so that crack gaps are easily generated, and the phenomenon of air leakage is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expansion broken rock detonating system under water to overcome present carbon dioxide and send and split the defect that produces the crack gap and lead to leaking gas between end cap and the expansion pipe or between expansion pipe and the thickening terminal surface when the ware carries out liquid carbon dioxide and packs.

In order to achieve the purpose, the utility model provides an underwater expansion rock-breaking initiation system, which comprises an exploder, an initiation line, an excitation tube, a cracking tube and an inflation valve; the excitation tube is placed in the fracturing tube, the inflation valve is installed on the fracturing tube, one end of the detonating cord is connected with the excitation tube, and the other end of the detonating cord is connected with the exploder;

the fracturing pipe comprises a pipe body, an upper plug cover, a lower plug cover and a fracturing groove, wherein the fracturing groove is formed in the pipe wall of the pipe body, a first sub pipe body, a second sub pipe body and a third sub pipe body are respectively arranged at two ends of the pipe body in sequence, the inner diameters of the first sub pipe body, the second sub pipe body and the third sub pipe body are sequentially reduced, the first sub pipe body and the second sub pipe body are transited through a first arc groove, the second sub pipe body and the third sub pipe body are transited through a second arc groove, and the first sub pipe body is provided with internal threads;

the upper plug cover and the lower plug cover are respectively provided with a threaded head, a first limit cover body and a second limit cover body which are connected in sequence; first spacing lid cover is equipped with first sealing washer, and the spacing lid cover of second is equipped with the second sealing washer, works as go up the gag and lower gag assemble respectively in during the both ends of body, the periphery of first sealing washer with the laminating of first circular arc groove, the periphery of second sealing washer with the laminating of second circular arc groove.

Preferably, in the above aspect, an outer periphery of the first seal ring is arc-shaped, which is the same as the shape of the first arc groove, and an outer periphery of the second seal ring is arc-shaped, which is the same as the shape of the second arc groove.

Preferably, in the above technical solution, the maximum diameter of the outer periphery of the first seal ring is the same as the inner diameter of the first sub pipe body, and the minimum diameter of the outer periphery of the first seal ring is the same as the inner diameter of the second sub pipe body.

Preferably, in the above technical solution, the maximum diameter of the outer periphery of the second seal ring is the same as the inner diameter of the second sub pipe body, and the minimum diameter of the outer periphery of the second seal ring is the same as the inner diameter of the third sub pipe body.

Preferably, in the above technical solution, the inflation valve is installed on the lower cover body.

Preferably, among the above-mentioned technical scheme, still place the chamber including arousing the pipe, arouse the mouth of pipe sealing connection that the chamber was placed to the pipe in go up the gag, just go up the gag inside be equipped with the intercommunication arouse the mouth of pipe that the chamber was placed to the pipe and extend the lead wire mouth of going up the gag, arouse the pipe place in arouse the pipe and place the intracavity.

Preferably, in the above technical solution, the detonating cord passes through the lead port to connect with the exciting tube, and the lead port is provided with a plug.

Preferably, in the above technical scheme, the upper plug cover is provided with a lifting lug.

Preferably, in the above technical solution, the number of the fracturing pipes is plural, and the plurality of the fracturing pipes are connected in series by the detonating cord.

Preferably, in the above technical scheme, the inflation valve is a one-way inflation valve.

Preferably, in the above technical solution, the first sealing ring and the second sealing ring are silica gel sealing rings.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model provides an underwater inflation broken rock detonating system adopts the sub-body of different internal diameters at the both ends of body to reduce the deformation at body both ends. Meanwhile, the pipe body and the upper plug cover and the pipe body and the lower plug cover are sequentially sealed by threads, a first sealing ring and a second sealing ring, so that a three-layer sealing structure is formed. The defect of air leakage generated during filling of liquid carbon dioxide is prevented.

2. The utility model discloses well carbon dioxide can fill the dress on-spot, is being applied to the construction operation, fills promptly and uses, and is simple and convenient, has avoided carbon dioxide to fill the potential safety hazard of filling the dress back storage.

3. The utility model discloses well send and split a tub series connection, make send and split intraductal carbon dioxide and arouse detonating by excitation simultaneously almost, the pressure of doing work to the rock is bigger, and is better to the crushing effect of rock.

Drawings

Fig. 1 is an explosion diagram of the cracking tube of the present invention.

Fig. 2 is a schematic structural view of the cracking tube of the present invention.

Fig. 3 is the installation schematic diagram of the underwater expansion rock-breaking initiation system of the utility model.

The device comprises a 1-exploder, a 2-detonating bus, a 3-detonating leg wire, a 4-exciting tube, a 5-cracking tube, a 51-lifting lug, a 52-upper plug cover, a 521-threaded head cover, a 522-first limiting cover body, a 523-second limiting cover body, a 524-first sealing ring, a 525-second sealing ring, a 53-tube body, a 531-first sub-tube body, a 532-second sub-tube body, a 533-third sub-tube body, a 534-first arc groove, a 535-second arc groove, a 54-exciting tube placing cavity, a 55-gas containing cavity, a 56-cracking groove, a 57-lower plug cover, a 58-inflation valve and a 6-orifice blockage.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "thick", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. The terms "first", "second" and "third", if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features or a precedence of indicated technical features.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

As shown in fig. 1-3, the underwater expansion rock-breaking initiation system in this embodiment comprises an exploder 1, an initiation line 2, an excitation tube 4, a fracturing tube 5 and an inflation valve 58.

With continued reference to fig. 1-2, the fracturing pipe 5 comprises a pipe body 53, an upper plug cap 52, a lower plug cap 57, an excitation pipe placing cavity 54 and a fracturing groove 56, wherein the upper plug cap 52 is provided with a lifting lug 51. The tube wall of the tube 53 is provided with a cracking groove 56, the tube 53 is internally provided with a gas accommodating cavity 55, two ends of the tube 53 are respectively and sequentially provided with a first sub-tube 531, a second sub-tube 532 and a third sub-tube 533 connected in series towards the internal direction, the inner diameters of the first sub-tube 531, the second sub-tube 532 and the third sub-tube 533 are sequentially reduced, and the tube thickness of the third sub-tube 533 is maximized. The first sub pipe body 531 and the second sub pipe body 532 are transited through a first arc groove 534, the second sub pipe body 532 and the third sub pipe body 533 are transited through a second arc groove 535, and inner threads are arranged on the inner wall of the first sub pipe body 531. The exciting tube 4 is placed in the cracking tube 5, specifically, the mouth of pipe of the cavity 54 is placed in the exciting tube and is connected to the upper plug 52 in a sealing manner, a lead port which is communicated with the mouth of pipe of the cavity 54 and extends out of the upper plug 52 is arranged inside the upper plug 52, the exciting tube 4 is placed in the cavity 54 is placed in the exciting tube, and the lead port is provided with a plug, such as a screw plug. An inflation valve 58 is mounted on the lower cover 57 on the fracturing tube 5, in this embodiment the inflation valve 58 is preferably a one-way inflation valve.

With continued reference to fig. 1-2, the upper plug 52 and the lower plug 57 are respectively provided with a threaded cap 521, a first limit cap 522 and a second limit cap 523, which are sequentially connected. The first position-limiting cover 522 is sleeved with a first sealing ring 524, as shown in fig. 2, the periphery of the first position-limiting cover 522 is arc-shaped, and the diameter of the periphery of two ends of the first position-limiting cover 522 is larger and smaller. The outer periphery of the first seal ring 524 is arc-shaped, which has the same shape as the first arc groove 534, and the inner periphery is arc-shaped, which matches the arc-shaped outer periphery of the first stopper cover 522, and the first seal ring 524 can be directly fitted to the first stopper cover 522. The second limiting cover 523 is sleeved with a second sealing ring 525, as shown in fig. 2, the second limiting cover 523 is a cylindrical cover connected to the first limiting cover 522, the periphery of the bottom of the second limiting cover 523 is arc-shaped, and the diameter of the periphery of the two ends of the second limiting cover 523 is larger than that of the other end of the second limiting cover. The outer periphery of the second seal ring 525 is arc-shaped, which has the same shape as the second arc groove 535, the inner periphery is arc-shaped, which matches the arc-shaped outer periphery of the bottom of the second limit cover 523, and the second seal ring 525 may be directly sleeved on the bottom of the second limit cover 523.

Further, in this embodiment, the maximum outer diameter of the first sealing ring 524 is the same as the inner diameter of the first sub pipe body 531, and the minimum outer diameter of the first sealing ring 524 is the same as the inner diameter of the second sub pipe body 532. The maximum diameter of the outer circumference of the second sealing ring is the same as the inner diameter of the second sub pipe body 532, and the minimum diameter of the outer circumference of the second sealing ring 525 is the same as the inner diameter of the third sub pipe body 533. When the upper plug 52 and the lower plug 57 are respectively assembled at two ends of the pipe body 53, the outer periphery of the first sealing ring 524 is attached to the first arc groove 534, and the outer periphery of the second sealing ring 525 is attached to the second arc groove 535. The thread locking, the first sealing ring 524 and the second sealing ring 525 form three sealing layers together, and after sealing is carried out, when carbon dioxide is filled, the pipe wall of the third sub-pipe body is thick, so that the third sub-pipe body has good toughness and is not easy to expand due to pressure impact. And the three sealing layers are arranged, so that the phenomenon of air leakage can be well prevented. And the installation is realized in a threaded manner, so that the device is convenient and quick.

It should be noted that the first sealing ring 524 and the second sealing ring 525 are high temperature-resistant silicone sealing rings. Of course, the present embodiment is not limited thereto, and may be other types of seal rings.

With continued reference to fig. 3, the detonating cord is connected at one end to the firing tube 4 through a lead port and at the other end to the detonator 1. When a plurality of cracking tubes 5 are used in combination, the plurality of cracking tubes 5 are connected in series by a detonating cord. Specifically, the detonating cord comprises a detonating bus 2 and a detonating leg cord 3. One end of the detonating leg wire 3 is connected with the exploder 1, the other end of the detonating leg wire is connected with the exciting tubes 4, the exciting tubes 4 are sequentially connected, finally, the detonating leg wire is connected with the detonating bus 2, and the other end of the detonating bus 2 is connected with the exploder 1.

The working principle and the process of the underwater expansion rock-breaking initiation system in the embodiment are explained as follows:

as shown in fig. 3, when the underwater carbon dioxide rock breaking construction is performed, the unidirectional inflation valve 58 is installed at a corresponding position at the bottom of the fracturing pipe 5, the passage condition of the detonating leg wire 3 is detected by a special tester, if the passage of the detonating leg wire 3 is good, the thread plug at the top end of the excitation pipe placing cavity 54 is opened, the excitation pipe 4 is installed in the excitation pipe placing cavity 54 of the fracturing pipe 5, and then the thread plug is screwed and injected with waterproof glue. Filling carbon dioxide into the cracking tube 5 with the assembled exciting tube 4, fixing an air tap of a high-pressure air tube on a one-way inflation valve 58 through a fastening device, filling the carbon dioxide into the gas accommodating cavity 55, checking whether the cracking tube 5 leaks gas or not after the carbon dioxide is filled, connecting an upper detonating leg wire 3 to a wire extending out of the exciting tube 4 after the cracking tube 5 is ensured to be airtight, installing the cracking tube 5 into the drilled blast hole, slowly hanging the cracking tube 5 into the blast hole by using a hanging rope for binding a lifting lug 51, ensuring that after the cracking tube 5 is installed at the designed depth, pouring concrete prepared by rapid hardening cement into the hole to form an orifice plug 6, preventing the explosion energy from leaking outwards, ensuring the rock breaking effect, and further completing the installation of the cracking tube 5 of the blast hole. And repeating the steps to complete the installation of the fracturing pipes 5 of one row of blast holes, connecting the detonating leg wires 3 in series and then connecting the detonating leg wires 3 with the detonating bus 2, connecting the detonating leg wires 3 and the free ends of the detonating bus 2 with the upper exploder 1, and exciting the detonating to break rock after the detonating leg wires are ready. The exploder 1 is started to excite the excitation tube 4 to generate high temperature, so that liquid carbon dioxide filled in the gas containing cavity 55 of the cracking tube 5 is instantly gasified, the volume is instantly increased by hundreds of times, and nearby rock masses are crushed.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (10)

1. An underwater expansion rock-breaking detonating system comprises an exploder, a detonating cord, an exciting tube, a cracking tube and an inflation valve; the exciting tube is placed in the fracturing tube, the inflation valve is installed on the fracturing tube, one end of the detonating cord is connected with the exciting tube, and the other end of the detonating cord is connected with the exploder; it is characterized in that the preparation method is characterized in that,

the fracturing pipe comprises a pipe body, an upper plug cover, a lower plug cover and a fracturing groove, wherein the fracturing groove is formed in the pipe wall of the pipe body, a first sub pipe body, a second sub pipe body and a third sub pipe body are respectively arranged at two ends of the pipe body in sequence, the inner diameters of the first sub pipe body, the second sub pipe body and the third sub pipe body are sequentially reduced, the first sub pipe body and the second sub pipe body are transited through a first arc groove, the second sub pipe body and the third sub pipe body are transited through a second arc groove, and the first sub pipe body is provided with internal threads;

the upper plug cover and the lower plug cover are respectively provided with a threaded cap head, a first limit cover body and a second limit cover body which are connected in sequence; first spacing lid cover is equipped with first sealing washer, and the spacing lid cover of second is equipped with the second sealing washer, works as go up the gag and lower gag assemble respectively in during the both ends of body, the periphery of first sealing washer with the laminating of first circular arc groove, the periphery of second sealing washer with the laminating of second circular arc groove.

2. The underwater expansion rock-breaking initiation system of claim 1, wherein an outer periphery of the first seal ring is arc-shaped, which is the same as the shape of the first arc groove, and an outer periphery of the second seal ring is arc-shaped, which is the same as the shape of the second arc groove.

3. The underwater expansion rock breaking initiation system of claim 1, wherein a maximum diameter of an outer periphery of the first seal ring is the same as an inner diameter of the first sub-pipe body, and a minimum diameter of an outer periphery of the first seal ring is the same as an inner diameter of the second sub-pipe body.

4. The underwater expansion rock breaking initiation system of claim 1, wherein a maximum diameter of an outer periphery of the second seal ring is the same as an inner diameter of the second sub-pipe body, and a minimum diameter of an outer periphery of the second seal ring is the same as an inner diameter of the third sub-pipe body.

5. The underwater expansion rock breaking initiation system of claim 1, wherein the inflation valve is mounted on the lower cover body.

6. The underwater expansion rock breaking initiation system according to claim 1, further comprising an excitation tube placing cavity, wherein a pipe orifice of the excitation tube placing cavity is hermetically connected to the upper plug cover, a lead port which is communicated with the pipe orifice of the excitation tube placing cavity and extends out of the upper plug cover is arranged inside the upper plug cover, and the excitation tube is placed in the excitation tube placing cavity.

7. The underwater expansion rock breaking initiation system of claim 6, wherein the initiation line passes through the lead port to be connected with an excitation tube, and the lead port is provided with a plug.

8. The underwater expansion rock breaking initiation system of claim 1, wherein the upper plug cap is provided with a lifting lug.

9. The subsea expansion rock breaking initiation system according to claim 1, wherein the fracturing tube is in plurality, and a plurality of the fracturing tubes are connected in series by the initiation line.

10. The underwater expansion rock-breaking initiation system of claim 1, wherein the inflation valve is a one-way inflation valve.

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