An underwater fracturing device

Abstract

The present invention relates to the field of blasting technology for ocean engineering equipment, and particularly relates to an underwater fracturing device, which includes a plurality of fracturing devices and a fracturing and expansion device. The fracturing device includes a fracturing pipe and an excitation pipe. The fracturing pipe includes a pipe body, a fracturing groove, and an upper plug cover and a lower plug cover respectively and sealingly connected to both ends of the pipe body; a fracturing groove is formed in the pipe wall of the pipe body, the excitation pipe is arranged inside the fracturing pipe, and the pipe body is provided with a first driving member. The upper plug cover is provided with a first plugging member connected to the excitation pipe. The fracturing and expansion device includes a main bracket and a plurality of directional support components arranged on the main bracket. The main bracket is provided with a second plugging member. The directional support component includes a support cylinder and a support tray. The support cylinder is provided with a second driving member that is matched with the first driving member. The first plugging member is connected to the second plugging member through a first plugging wire member, and the initiation system is connected to the second plugging member through a second plugging wire member. This device enables a plurality of fracturing devices located in the same hole to perform blasting in a predetermined fracturing direction, so as to achieve the maximum blasting effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of underwater rock-breaking blasting, and particularly relates to an underwater fracturing device. Background Art

[0002] In the construction of reef blasting and obstacle clearing in water transportation projects, water conservancy and hydropower projects, processes such as static crack agents, rock drilling rods, and impact hammers are often used for rock-breaking construction. Since these processes have certain vibrations and shock waves during construction, they have a certain impact on nearby sensitive buildings and aquatic organisms. In recent years, carbon dioxide fracturing devices have also been used for underwater rock blasting, which can achieve the purpose of breaking rocks, and at the same time, the generated shock waves and vibration waves are very small, meeting the protection requirements for surrounding sensitive buildings. However, the current fracturing devices are all single-tube settings. Due to the action of water pressure underwater, the single-tube fracturing device may have the defect of unsatisfactory blasting effect during underwater blasting. Therefore, operators place multiple fracturing devices together in a blasting hole for blasting, so as to achieve a better blasting effect. However, when multiple fracturing devices are placed in a blasting hole, due to underwater operation, it is difficult to adjust the directional fracture grooves of multiple fracturing devices. This causes the directional fracture grooves of multiple fracturing devices not to blast in the predetermined blasting direction when blasting, resulting in the blasting effect not reaching the predetermined effect. Summary of the Invention

[0003] The purpose of the present invention is to provide an underwater fracturing device, so as to overcome the defect that the directional fracture grooves of multiple current underwater fracturing devices do not blast in the predetermined blasting direction, resulting in the blasting effect not reaching the predetermined effect.

[0004] To achieve the above purpose, the present invention provides an underwater fracturing device, including:

[0005] A plurality of fracturing devices, each of the fracturing devices includes a fracturing tube and an excitation tube; the fracturing tube includes a tube body, a fracture groove, and an upper plug cover and a lower plug cover respectively and hermetically connected to both ends of the tube body; the fracture groove is opened on the tube wall of the tube body, the excitation tube is arranged inside the fracturing tube, and a first driving member is arranged on the outer periphery of the tube body; the upper plug cover is provided with a first socket connector connected to the lead of the excitation tube;

[0006] A fracture expansion device, which includes a main bracket and a plurality of directional support components arranged on the main bracket, the main bracket is provided with a plurality of second socket connectors connected to each other; the directional support component includes a support cylinder and a support tray, the support cylinder and the support tray are arranged corresponding to each other up and down, and a second driving member matching the first driving member is arranged on the inner wall of the support cylinder to drive the first driving member to rotate through the second driving member;

[0007] The first plug connector is connected to one of the second plug connectors through a first plug wire, and the initiation system is connected to one of the second plug connectors through a second plug wire.

[0008] Preferably, in the above technical solution, the upper plug cover is provided with a first slot, and the first plug connector is disposed in the first slot.

[0009] Preferably, in the above technical solution, the main bracket is provided with a plurality of second slots, and each of the second plug connectors is disposed in one of the second slots.

[0010] Preferably, in the above technical solution, the first plug connector and the second plug connector are plug pins.

[0011] Preferably, in the above technical solution, the first driving member is a bevel gear ring, the second driving member is a bevel gear capable of meshing with the bevel gear ring, and a driving port is provided on a driving shaft of the bevel gear extending out of the outer wall of the support cylinder.

[0012] Preferably, in the above technical solution, a conical groove is formed at the bottom of the lower plug cover, and a conical support corresponding to the conical groove is provided in the support tray.

[0013] Preferably, in the above technical solution, the inflation valve is installed on the lower plug cover.

[0014] Preferably, in the above technical solution, the initiation system includes an initiation power source and an initiator, the power source is connected to the initiator, and the initiator is connected to one of the second plug connectors through a second plug wire.

[0015] Preferably, in the above technical solution, there are at least two or more of the fracturing devices.

[0016] Compared with the existing technology, the present invention has the following beneficial effects:

[0017] 1. In the underwater fracturing device of the present invention, first, the fracturing device is sleeved on the support cylinder and the support assembly. At this time, the second driving member is matched with the first driving member, and then the second driving member is adjusted to drive the first driving member to rotate the direction of the directional fracturing groove of the fracturing device. In this way, other fracturing devices are installed and the direction of their fracturing grooves is adjusted, so that a plurality of fracturing devices located in the same hole are blasted according to a predetermined fracturing direction. Thus, the combined fracturing device can achieve the maximum blasting effect when performing rock fracturing blasting in water.

[0018] 2. The present invention wires by means of plugging, and after wiring is completed, waterproof glue is filled in the slots for waterproofing. It is convenient and fast, and each first slot of the fracturing device corresponds to a second slot on the main bracket without affecting each other.

[0019] 3. In the present invention, a conical groove is provided at the bottom of the lower plug cover, which can be matched with the conical support body in the support tray, so that the cracker rotates more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the underwater cracking device of the present invention.

[0021] Among them, 1 - main bracket, 2 - support cylinder, 3 - support tray, 4 - conical support body, 5 - second driving member, 6 - second slot, 7 - second plug-in member, 8 - cracker, 9 - upper plug cover, 10 - pipe body, 11 - cracking groove, 12 - lower plug cover, 13 - conical groove, 14 - excitation tube placement cavity, 15 - excitation tube, 16 - first slot, 17 - first plug-in member, 18 - first plug-in wire member, 19 - second plug-in wire member, 20 - first driving member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse"

[0024] "upper", "lower", "front", "thick", "left", "right", "vertical", "horizontal", "top", "bottom"

[0025] The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0026] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of the terms "first", "second", "third", etc., they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following will describe the embodiments according to the overall structure of the present invention.

[0028] As Figure 1 shown, an underwater fracturing device in this embodiment includes a plurality of fracturing devices, a fracturing and dilation device, and a detonating system.

[0029] Continue to refer to Figure 1 , the fracturing device 8 includes a fracturing pipe and an excitation pipe 15. The fracturing pipe includes a pipe body 10, a fracturing groove 11, an upper plug 9 and a lower plug 12 which are respectively and hermetically connected to both ends of the pipe body 10. The fracturing groove 11 is formed on the pipe wall of the pipe body 10, and the excitation pipe 15 is arranged inside the fracturing pipe. Specifically, the fracturing pipe includes a pipe body 10, an upper plug 9, a lower plug 12, an excitation pipe placement cavity 14 and a fracturing groove 11. The upper plug 9 is provided with a lifting lug. The fracturing groove 11 is formed on the pipe wall of the pipe body 10. The inside of the pipe body 10 is a gas containment cavity. The pipe orifice of the excitation pipe placement cavity 14 is hermetically connected to the upper plug 9, and a pipeline communicating with the excitation pipe placement cavity 14 is arranged inside the upper plug 9. The excitation pipe 15 is placed in the excitation pipe placement cavity 14, and the lead wire extends into the pipeline. The inflation valve is installed on the lower plug 12 of the fracturing pipe. In this embodiment, the inflation valve is preferably a one-way inflation valve. The upper plug 9 is provided with a first slot 16, and the upper plug 9 is provided with a first plug-in part 17 connected to the lead wire of the excitation pipe 15. The first plug-in part 17 is arranged in the first slot 16. A first driving member 20 is arranged on the outer periphery of the pipe body 10.

[0030] Continue to refer to Figure 1 , the fracturing and dilation device includes a main bracket 1 and a plurality of directional support components arranged on the main bracket 1. The main bracket 1 is provided with a plurality of second plug-in parts 7 connected to each other. The directional support component includes a support cylinder 2 and a support tray 3. The support cylinder 2 and the support tray 3 are arranged corresponding to each other up and down. The inner wall of the support cylinder 2 is provided with a second driving member 5 that is matched with the first driving member 20. When the first driving member 20 is matched with the second driving member 5, the first driving member 20 is driven to rotate through the second driving member 5. Thus, the direction of the fracturing groove 11 of the fracturing pipe can be adjusted.

[0031] In this embodiment, a structural solution for a first driving member 20 and a second driving member 5 is exemplified. That is, the first driving member 20 is a bevel gear ring, and the second driving member 5 is a bevel gear capable of meshing with the bevel gear ring. A driving port is provided on the driving shaft of the bevel gear extending out of the outer wall of the support cylinder 2. When the fracturer 8 is sleeved into the support cylinder 2 and the support tray 3 corresponding to the upper and lower parts of the main support 1, the conical teeth of the bevel gear ring and the conical teeth of the bevel gear mesh with each other, so that the bevel gear can be driven to rotate through the driving port, and the rotating bevel gear can drive the bevel gear ring to rotate, thereby driving the fracturer 8 to rotate to adjust the directional fracture groove 11 of the fracturer 8. And in this embodiment, the driving port is preferably an internal hexagonal port, so that it can be operated by a hexagonal tool. However, this is not limited in this embodiment, and the structural solution of the first driving member 20 and the second driving member 5 can also be replaced by other solutions.

[0032] Continue to refer to Figure 1 , the main support 1 is provided with a plurality of second slots 6, and each second plug-in member 7 is disposed in a second slot 6. During installation, the first plug-in member 17 is connected to a second plug-in member 7 through a first plug-in wire member 18, and the initiation system is connected to a second plug-in member 7 through a second plug-in wire member 19. The initiation system includes an initiation power supply and an initiator. The power supply is connected to the initiator, and the initiator is connected to a second plug-in member 7 through a second plug-in wire member 19. In this embodiment, the first plug-in member 17 and the second plug-in member 7 are preferably pin needles. The two ends of the first plug-in wire member 18 and the second plug-in wire member 19 are plug-in pin bases, and the plug-in pin bases are connected in cooperation with the pin needles. After the connection is completed, waterproof glue is injected into the slot. By means of plugging for wiring, and filling waterproof glue in the slot for waterproofing after wiring is completed, it is convenient and fast, and the first slot 16 of each fracturer 8 corresponds to a second slot 6 on the main support 1, without affecting each other.

[0033] Continue to refer to Figure 1 , in order to make the fracturer 8 rotate more smoothly when it is sleeved into the support cylinder 2 and the support tray 3, a conical groove 13 is provided at the bottom of the lower plug cover 12, and a conical support body 4 corresponding to the conical groove 13 is provided in the support tray 3. The contact surface between the conical support body 4 and the conical groove 13 is preferably a smooth surface.

[0034] In this embodiment, there are at least two or more fracturers 8, and the directional support components also correspond to at least two or more. For example, if there are four fracturers 8 and four directional support components, then there are five second plug-in members 7. When the four directional support components are arranged, they can be arranged symmetrically diagonally in a rectangle or arranged side by side, which can be set according to the requirements during blasting. During assembly, one fracturer 8 is correspondingly sleeved into one directional support component, and the direction of the fracture groove 11 of each fracturer 8 is driven by the second driving member 5, so that the directional fracture grooves 11 of the four fracturers 8 can be combined to produce the maximum blasting effect.

[0035] During blasting, the fracturers are first filled with carbon dioxide through a one-way inflation valve. The high-pressure gas nozzle is then secured to the one-way inflation valve using a fastening device, and carbon dioxide is then injected into the gas-containing chamber. The fracturers 8 are then inserted into the support tube 2 and support tray 3. The second driver 5 is then mated with the first driver 20. Adjusting the second driver 5 drives the first driver 20 to rotate the directional fracturing groove 11 of the fracturers 8. In this manner, additional fracturers 8 are installed and their fracturing grooves 11 are adjusted. After several fracturers 8 are adjusted, each is connected to the main support 1 via the first connector 18, and the blasting system is connected to the main support 1 via the second connector 19. The fracturers 8 are then installed into the drilled blasthole. The fracturers 8 are then slowly lowered into the blasthole using a lifting rope tied to the lifting lugs. Once installed to the designed depth, concrete made from quick-setting cement is poured into the hole to block the opening, completing the installation of the fracturers 8 for the blasthole. Repeat the above steps to complete the installation of the fracturing device 8 in other blastholes. Finally, start the detonator to excite the excitation tube 15, generating high temperature, which instantly vaporizes the liquid carbon dioxide in the gas receiving chamber of the fracturing tube, increasing its volume by hundreds of times, and fracturing the nearby rock mass.

[0036] In this way, several fracturing devices in the same hole are adjusted to blast in a predetermined fracturing direction, so that the combined fracturing devices can achieve the maximum blasting effect when blasting rock in water.

[0037] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. An underwater fracturing device, characterized in that, Comprising: A number of fracturing devices, each of which includes a fracturing tube and an initiating tube; the fracturing tube includes a tube body, a fracturing groove, and an upper plug cover and a lower plug cover respectively and hermetically connected to both ends of the tube body; the fracturing groove is formed in the tube wall of the tube body, the initiating tube is arranged inside the fracturing tube, and a first driving member is arranged on the outer periphery of the tube body; the upper plug cover is provided with a first plug-in member connected to the lead wire of the initiating tube; A fracturing and volume expansion device, which includes a main bracket and a number of directional support components arranged on the main bracket, and the main bracket is provided with a number of second plug-in members connected to each other; the directional support component includes a support cylinder and a support tray, the support cylinder and the support tray are arranged corresponding to each other up and down, and a second driving member matching the first driving member is arranged on the inner wall of the support cylinder to drive the first driving member to rotate through the second driving member; The first plug-in member is connected to one of the second plug-in members through a first plug-in wire member, and the initiating system is connected to one of the second plug-in members through a second plug-in wire member; The first driving member is a bevel gear ring, and the second driving member is a bevel gear capable of meshing with the bevel gear ring. A driving port is arranged on the driving shaft of the bevel gear extending out of the outer wall of the support cylinder; A conical groove is formed at the bottom of the lower plug cover, and a conical support body corresponding to the conical groove is arranged inside the support tray.

2. The underwater fracturing device according to claim 1, wherein The upper plug cover is provided with a first slot, and the first plug-in member is arranged in the first slot.

3. The underwater fracturing device according to claim 1, wherein The main bracket is provided with a number of second slots, and each of the second plug-in members is arranged in one of the second slots.

4. The underwater fracturing device according to claim 1, characterized in that, The first plug-in member and the second plug-in member are plug pins.

5. The underwater fracturing device according to claim 1, characterized in that, An air inflation valve is installed on the lower plug cover.

6. The underwater fracturing device according to claim 1, wherein, The initiating system includes an initiating power supply and an initiator, the power supply is connected to the initiator, and the initiator is connected to one of the second plug-in members through a second plug-in wire member.

7. The underwater fracturing device according to claim 1, characterized in that, There are at least two or more of the fracturing devices.

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