A controllable shock wave fracturing device for green rock splitting in a coal mine underground

Abstract

The application relates to the technical field of mining equipment, and specifically discloses a controllable shock wave fracturing device for green rock splitting in a coal mine underground, which comprises a general part extending into a working hole and multiple types of converters; a storage part with multiple accommodating cavities is installed at one end of the general part, and each type of the converter is arranged in each of the accommodating cavities; a type conversion mechanism is arranged in the circumferential direction of the general part and comprises a pushing mechanism and a movable connecting mechanism; wherein the pushing mechanism is installed in the circumferential direction of the general part, the output end of the pushing mechanism is arranged in each of the accommodating cavities, and the pushing mechanism is used for pushing the converter arranged in each of the accommodating cavities out; and the movable connecting mechanism is arranged at the end of the storage part and is used for electrically connecting the converter pushed out by the pushing mechanism and the general part. The controllable shock wave fracturing device improves the low-efficiency problem of traditional equipment converter fixation and deep hole removal and replacement, realizes the effect of replacing multiple types of converters in the hole, is suitable for narrow spaces, and improves operation efficiency.

Description

Technical Field

[0001] This application relates to the field of mining equipment technology, and in particular to a green rock-fracturing controllable shock wave fracturing device for underground coal mines. Background Technology

[0002] In the process of mining gas before coal in coal mining, measures need to be taken in advance to break the rock and weaken the lithology in the hard rock area within the influence range of the collapse column of the working face in order to reduce the relocation and collapse of the working face and ensure production efficiency.

[0003] Currently, commonly used treatment methods include hydraulic fracturing, explosive blasting, and carbon dioxide phase change fracturing. Among them: Hydraulic fracturing has limited effectiveness, and the use of high-pressure equipment itself poses safety risks. Explosive blasting is suitable for situations where the collapse column is located in the middle of the working face or has a large influence area. Detonating explosives at the working face disrupts production, can damage equipment, and even hinders gas management. Pre-fracking from the side trenches presents challenges in charging explosives once the hole depth exceeds 40m. Furthermore, borehole blasting is a single-point, one-time operation, making multi-point blasting difficult within the same borehole, resulting in pre-fracking effects only near the blast point and poor uniformity across the entire collapse column's influence area. Carbon dioxide phase change pre-fracking presents similar challenges. Therefore, existing processes are insufficient to meet the demands of high-efficiency on-site production, necessitating the application of new technologies to improve production efficiency.

[0004] Controlled shock wave technology is a technique based on high-power pulse technology that uses discharge plasma to drive an energetic mixture to generate a pulsed, strong shock wave. Its effect on coal seams is similar to that of a single explosive detonation in rock. The difference is that controlled shock waves use a single, low-energy burst to repeatedly induce fracturing in a single area, and then the entire borehole is pre-fractured by moving equipment within the borehole. Given the adverse effects of a single large explosion on the coal seam and the resulting hazards, a coordinated operational strategy of repeated, single-point, small-area shock wave impacts and alternating multi-point impacts is employed. Following the technical approach of "step-by-step fracturing and gradual expansion," efficient pre-fracturing of the coal seam is achieved. Compared to traditional hydraulic fracturing and deep-hole blasting technologies, this technology has significantly differentiated characteristics, providing a novel, green, and controllable rock fracturing solution for coal seam modification without explosives.

[0005] In existing controllable shock wave rock breaking equipment, the general unit and the converter are mostly fixed connection structures. The positioning, power supply and other components of the general unit can only match a single type of converter to form a fixed working unit. However, the geological conditions of coal seams in underground coal mines are complex. Coal seams of different depths and different coal qualities have significantly different requirements for the energy and frequency of shock waves. During operation, it is necessary to frequently switch between different types of converters to adapt to the working conditions.

[0006] Since coal seams can reach depths of hundreds of meters, the entire set of equipment must be removed from the deep hole when replacing the converter. This is not only cumbersome and time-consuming, but also the narrow space inside the deep hole prevents large auxiliary equipment from entering and limits manual operation, further extending the replacement time and resulting in long interruption cycles and low overall efficiency in gas drainage operations.

[0007] Repeatedly picking up and putting down the equipment can easily disturb the borehole wall, causing risks such as borehole wall collapse and stuck drill, which seriously threaten the safety of underground operations. In addition, this fixed connection structure greatly limits the functional expandability of the equipment and makes it difficult to adapt to the diverse coal seam fracturing needs. It has become a key bottleneck restricting the efficient advancement of the gas-first-coal-second process.

[0008] Therefore, there is an urgent need to develop a technical solution that can adapt to the narrow space of deep holes and replace the converter without removing the entire set of equipment, so as to solve the pain points of the existing equipment's single function and low efficiency of replacement, thereby improving the safety and overall efficiency of coal mine gas extraction and mining operations. Summary of the Invention

[0009] This application provides a controllable shock wave fracturing device that solves the inefficiency problem of fixed converters and the need to remove and replace them in deep holes in traditional equipment. It enables the replacement of multiple types of converters inside the hole, adapts to narrow spaces, and improves work efficiency.

[0010] This invention provides a controllable shock wave fracturing device, comprising: a general-purpose section extending into a working hole and multiple types of converters; wherein the general-purpose section is used to store and controllably output energy, regulate equipment operation and adapt to fracturing scenarios, and the converters are used to receive energy and control signals from the general-purpose section and convert them into fracturing energy acting on the object to be fractured; a storage section having multiple accommodating cavities is installed at one end of the general-purpose section, and each type of converter is disposed in each of the accommodating cavities; wherein the end of the general-purpose section is disposed through the end wall of the storage section and is used to connect each type of converter; a type conversion mechanism is disposed circumferentially along the general-purpose section and includes: a pushing mechanism and a movable connecting mechanism; wherein the pushing mechanism is installed circumferentially along the general-purpose section, and its output end is disposed in each of the accommodating cavities, for pushing out the converters disposed in each of the accommodating cavities; the movable connecting mechanism is disposed at the end of the storage section and is used to electrically connect the converters pushed out by the pushing mechanism and the general-purpose section.

[0011] In one possible implementation, the general-purpose unit includes: an auxiliary support mechanism and a general-purpose equipment mechanism; wherein the general-purpose equipment mechanism includes a magnetic locator, a high-voltage power supply, a capacitor, and an energy controller connected in sequence; and a control device, wherein the control device is located outside the working hole and electrically connected to the magnetic locator; wherein one end of the energy controller away from the capacitor extends out of the end face of the storage unit and is used to connect to one end of the movable connection mechanism; the auxiliary support mechanism includes: an insulating tube for wiring, one end of which is used to mount the general-purpose equipment mechanism.

[0012] In one possible implementation, the auxiliary support mechanism further includes: a collar fitted around the circumference of the insulating tube; a plurality of mounting rods, each with one end spaced apart from the collar and arranged radially around the collar; a sprocket rotatably mounted at the end of each mounting rod; a friction rod connected at one end to the sprocket; a chain, in a ring shape and passing through each sprocket; a stopper cylinder, the cylinder body of which is mounted on the outer circumference of the collar, the chain passing through the stopper plate of the stopper cylinder and sealing between the stopper plate and the stopper plate; wherein one end of the stopper cylinder is slidably sealed to the chain; and a first air pipe arranged inside the insulating tube, one end connected to the closed end of the stopper cylinder, and the other end connected to an air source outside the working hole.

[0013] In one possible implementation, the storage unit includes: a column disposed at one end of the general-purpose unit; a mounting hole disposed along the axis of the column and through the column; wherein one end of the general-purpose unit passes through the mounting hole; and a receiving cavity disposed at intervals and through both ends of the column, the receiving cavity being cylindrical and having its axis parallel to the axis of the column.

[0014] In one possible implementation, a plurality of perforated grooves are spaced apart along the outer circumferential surface of the column, with the opening of each perforated groove facing the outer wall of the column; a V-shaped rod is composed of two connecting rods hinged at one end; wherein the outer wall of one end of the V-shaped rod is installed on the inner wall of the perforated groove; a guide wheel is installed at the other end of the V-shaped rod; a spring is installed in the opening of the V-shaped rod; a plug is spaced apart at the end of the column away from the general part; wherein a plurality of support plates are provided between the plug and the outer edge of the column; a first airbag and a second airbag are respectively sleeved on the plug and the outer wall of the column, and the first airbag and the second airbag are connected to an air source through a second air pipe.

[0015] In one possible implementation, the pushing mechanism includes: mounting plates, spaced apart and sleeved around the circumference of the general-purpose part; multiple pneumatic telescopic rods, each corresponding to a specific receiving cavity, the pneumatic telescopic rods being mounted on the mounting plates and having their output end movement trajectory coinciding with the axis of the receiving cavity; wherein each pneumatic telescopic rod is connected to an air source via a third air pipe; a sealing plate is located at the output end of the pneumatic telescopic rods, the end of the sealing plate away from the pneumatic telescopic rods being connected to each converter; wherein a heightening block is provided between the converter and the sealing plate.

[0016] In one possible implementation, the movable connection mechanism includes: a drive motor mounted on the side of the plug near the column; wherein the output shaft of the drive motor faces the center of the end wall of the column; a shield covering the drive motor; an L-shaped rod connected at one end to the output shaft of the drive motor; and a conductor plate rotatably connected at one end to the end wall of the universal part; wherein the end of the L-shaped rod away from the drive motor engages with the conductor plate to push the conductor plate to rotate around the axis of the universal part.

[0017] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages: After the entire equipment is fed into the fracturing hole and reaches the preset position, the general-purpose unit is in a standby state. The connection end of the converter is hidden in the receiving cavity. According to the operation requirements, such as switching from fracturing function to production enhancement function, the general-purpose unit sends a control signal to the push mechanism. The push mechanism starts and pushes the target type converter, such as the production enhancement converter, out of its corresponding receiving cavity along the preset direction, so that the connection end of the converter is exposed and removed from the receiving cavity. The general-purpose unit simultaneously controls the movable connection mechanism to swing, so that one end of it remains connected to the output end of the general-purpose unit, and the other end swings to the connection end of the pushed-out converter, forming a physical connection. The conduction path inside the movable connection mechanism, such as the circuit and energy conduction channel, is connected, so that the general-purpose unit and the converter can achieve energy and control signal communication through the movable connection mechanism. The general-purpose unit outputs energy and working instructions, which are transmitted to the converter through the movable connection mechanism, triggering the converter to perform the operation on the target object according to its type corresponding function, such as fracturing operation or production enhancement operation. If the converter needs to be replaced again, the push mechanism is used to pull the current converter back into the receiving cavity, and the above steps are repeated to push out the corresponding converter and connect it with the general-purpose unit. By storing multiple types of converters in the storage unit, along with the ejection mechanism and movable connection mechanism, converters can be replaced without removing the equipment inside the borehole. This is compatible with various functional requirements such as fracturing and production enhancement. It eliminates the need to remove the equipment from the deep borehole for converter replacement, avoiding the inefficiency of repeatedly taking and putting down equipment in deep borehole operations. At the same time, the structure of the storage unit, ejection mechanism, and movable connection mechanism is adapted to the limited space inside the borehole, allowing replacement to be completed without the need for large auxiliary equipment to enter the borehole. This improves operational feasibility, reduces the number of times equipment needs to be taken out and put down due to converter replacement, and shortens the downtime of operations. It is especially suitable for scenarios with complex take-out and put-down operations, such as deep boreholes. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the fracturing equipment structure provided in the embodiments of this application; Figure 2 A schematic diagram of the general component structure provided in the embodiments of this application; Figure 3 This is a schematic diagram of the auxiliary support mechanism structure provided in the embodiments of this application; Figure 4 A schematic diagram of the storage unit structure provided in an embodiment of this application; Figure 5 This is a schematic diagram of the V-shaped rod installation provided in an embodiment of this application; Figure 6 This is a schematic diagram of the push mechanism structure provided in an embodiment of this application; Figure 7 for Figure 6 An enlarged schematic diagram of region A in the middle.

[0020] icon: 100-General Department; 110 - Auxiliary support mechanism; 111-Insulating tube; 112-Collar; 113-Mounting rod; 114-Sprocket; 115-Friction rod; 116-Chain; 117 - Cylinder plug; 118 - First air tube; 120 - General equipment mechanism; 121-Control device; 122-Magnetic locator; 123-High voltage power supply; 124-Capacitor; 125-Energy controller; 200-converter; 300 - Storage Department; 310a - Column; 320 - Mounting hole; 330 - Hollowed-out groove; 340 - V-shaped rod; 350 - Guide wheel; 360 - Spring; 370 - Plug; 380a - First airbag; 380b - Second airbag; 390 - Support plate; 310b - Receiving cavity; 400 - Type Conversion Mechanism; 410 - Push Organization; 411-Mounting plate; 412-Pneumatic telescopic rod; 413-Third air pipe; 414-Sealing plate; 415-Heightening block; 420 - Movable connection mechanism; 421-Drive motor; 422-Shielding cover; 423-L-rod; 424-Conductor plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0023] Example 1 Please see Figures 1 to 7A controllable shock wave fracturing device includes: a general-purpose section 100 extending into a working hole and multiple types of converters 200; wherein the general-purpose section 100 is used to store and controllably output energy, regulate the operation of the device and adapt to the fracturing scenario, and the converters 200 are used to receive energy and control signals from the general-purpose section 100 and convert them into fracturing energy acting on the object to be fractured; a storage section 300 having multiple receiving cavities 310b is installed at one end of the general-purpose section 100, and each type of converter 200 is disposed in each of the receiving cavities 310b; wherein the end of the general-purpose section 100 passes through the storage section 300. A type conversion mechanism 400 is provided at the end wall of the storage unit 300 and is used to connect the various types of converters 200; the type conversion mechanism 400 is provided circumferentially along the general part 100 and includes: a pushing mechanism 410 and a movable connecting mechanism 420; wherein the pushing mechanism 410 is installed circumferentially along the general part 100 and its output end is provided in each of the receiving cavities 310b, and is used to push out the converters 200 provided in each of the receiving cavities 310b; the movable connecting mechanism 420 is provided at the end of the storage unit 300 and is used to electrically connect the converters 200 pushed out by the pushing mechanism 410 and the general part 100.

[0024] In the above embodiment, after the entire device is fed into the fracturing hole and reaches the preset position, the general-purpose unit 100 is in a standby state. The connection end of the converter 200 is hidden in the receiving cavity 310b. According to the operation requirements, such as switching from fracturing function to production enhancement function, the general-purpose unit 100 sends a control signal to the ejection mechanism. The pushing mechanism 410 starts and ejects the target type converter 200, such as the production enhancement converter 200, from its corresponding receiving cavity 310b in a preset direction, so that the connection end of the converter 200 is exposed and removed from the cover of the receiving cavity 310b. The general-purpose unit 100 simultaneously controls the movable connection mechanism 420 to swing, so that one end of it remains connected to the output end of the general-purpose unit 100, and the other end swings to the ejected converter. At the connection end of the converter 200, a physical connection is formed, and the conduction path inside the movable connection mechanism 420, such as the circuit and energy conduction channel, is connected, so that the general unit 100 and the converter 200 can achieve the connection of energy and control signals through the movable connection mechanism 420. The general unit 100 outputs energy and working commands, which are transmitted to the converter 200 through the movable connection mechanism 420, triggering the converter 200 to perform the operation on the target object according to its type corresponding function, such as fracturing operation or production enhancement operation. If the converter 200 needs to be replaced again, the current converter 200 is pulled back into the receiving cavity 310b by the pushing mechanism 410, and the above steps are repeated to push out the corresponding converter 200 and connect it to the general unit 100. By storing multiple types of converters 200 in the storage unit 300, and in conjunction with the ejection mechanism and the movable connection mechanism 420, the converter 200 can be replaced without removing the equipment inside the borehole. This is compatible with various functional requirements such as fracturing and production enhancement. It eliminates the need to remove the equipment from the deep borehole to replace the converter 200, avoiding the inefficiency of repeatedly taking and putting down the equipment in deep borehole operations. At the same time, the structure of the storage unit 300, the ejection mechanism, and the movable connection mechanism 420 is adapted to the limited space inside the borehole, and the replacement can be completed without the need for large auxiliary equipment to enter the borehole. This improves operational feasibility, reduces the number of times the equipment needs to be taken out and put down due to the replacement of the converter 200, and shortens the operation interruption time. It is especially suitable for scenarios with complex take-out and put-down operations such as deep boreholes.

[0025] Example 2 Please see Figures 1 to 7 The general-purpose part 100 includes: an auxiliary support mechanism 110 and a general-purpose equipment mechanism 120; wherein the general-purpose equipment mechanism 120 includes a magnetic positioning device 122, a high-voltage power supply 123, a capacitor 124, and an energy controller 125 connected in sequence; and a control device 121, wherein the control device 121 is located outside the working hole and electrically connected to the magnetic positioning device 122; wherein one end of the energy controller 125 away from the capacitor 124 extends out of the end face of the storage part 300 and is used to connect to one end of the movable connection mechanism 420; the auxiliary support mechanism 110 includes: an insulating tube 111 for wiring, one end of which is used to install the general-purpose equipment mechanism 120.

[0026] In the above embodiment, after the general unit 100 and the converter 200 are connected through the movable connection mechanism 420, the control device 121 outside the hole generates control commands according to the operation requirements, such as start, stop, and parameter adjustment, and transmits them to the magnetic positioner 122 of the general equipment mechanism 120 via wires. The magnetic positioner 122 then forwards the commands to the energy controller 125. After the energy controller 125 parses the commands, it transmits the signals to the signal path inside the movable connection mechanism 420 through its connection end with the movable connection mechanism 420, and finally transmits them to the converter 200. The high-voltage power supply 123 of the general equipment mechanism 120 first charges and stores energy in the capacitor 124. When the energy controller 125 receives the start command, it controls the capacitor 124 to release electrical energy. After the energy controller 125 adjusts the output power, the energy is sent to the conductive path of the movable connection mechanism 420 through the interface of its extension storage section 300. The electrical energy is transmitted to the connection end of the converter 200 through the path to provide working power for the converter 200.

[0027] The control device 121 has wires installed inside an insulating tube 111. The insulating tube 111 not only has wires installed, but also has a water supply pipe for filling the shock wave generating window of the converter 200 with water, and an air pipe for inflating the airbag to block water on one side of the shock wave generating window.

[0028] Example 3 Please see Figures 1 to 7 The auxiliary support mechanism 110 further includes: a collar 112, sleeved around the insulating tube 111; a plurality of mounting rods 113, one end of which is connected to the collar 112 around the circumference, and the mounting rods 113 are arranged in a radiating pattern with the collar 112 as the center; a sprocket 114, rotatably mounted at the end of each mounting rod 113; a friction rod 115, one end of which is connected to the sprocket 114; a chain 116, which is annular and passes through each sprocket 114; a stopper cylinder 117, the cylinder body of which is mounted on the outer circumferential surface of the collar 112, and the chain 116 passes through the stopper plate of the stopper cylinder 117 and is sealed between the stopper plate and the stopper plate; wherein one end of the stopper cylinder 117 is slidably sealed with the chain 116; and a first air pipe 118, arranged inside the insulating tube 111, one end of which is connected to the closed end of the stopper cylinder 117, and the other end is connected to an air source outside the working hole.

[0029] In the above embodiments, the auxiliary support mechanism 110 is used to support the equipment when the converter 200 is replaced. Specifically, during operation, the air source uses the first air pipe 118 to inflate or draw air into the piston cylinder 117, causing a change in the distance between the piston plate and the closed end of the cylinder body, resulting in displacement of the piston plate within the cylinder body. It is worth noting that the chain 116 consists of a piston rod and an array of chain plates. One end of the piston rod is connected to the piston plate. The piston rod slides in the closed section of the cylinder body and slides to seal against the opening on the cylinder body. When the piston plate moves, it drives the chain 116 to move outside the collar 112. The rotation causes each sprocket 114 to be driven and rotate by the chain 116. Since the rotation direction of each sprocket 114 is the same, when the sprocket 114 rotates, it drives the friction rod 115 to swing, so that the ends of each friction rod 115 abut against the wall of the working hole. The friction rods 115, which are evenly spread out, support the collar 112 and the insulating tube 111, so that the insulating tube 111 and the general part 100 are in a position close to the axis of the working hole. Conversely, when the plug plate is driven to move to the other side by the air source, the friction rods 115 can be retracted.

[0030] Example 4 Please see Figures 1 to 7 The storage unit 300 includes: a column 310a disposed at one end of the general-purpose unit 100; a mounting hole 320 disposed along the axis of the column 310a and passing through the column 310a; wherein one end of the general-purpose unit 100 passes through the mounting hole 320; and a receiving cavity 310b disposed at intervals and passing through both ends of the column 310a, wherein the receiving cavity 310b is cylindrical and its axis is parallel to the axis of the column 310a.

[0031] In the above embodiments, multiple converters 200 of various types or the same type are placed in each receiving cavity 310b to be pushed by the pushing mechanism 410. Optionally, there are high voltage breakdown type, electric explosion wire type, energetic mixture transducer type, etc. It is worth noting that the converter 200 is a mature technology in the field, so it will not be described in detail here. The receiving cavity 310b is open at both ends, one end is close to the end of the general part 100, and the other end is used for the output end of the pushing mechanism 410 to enter. Through the cooperation of the pushing mechanism 410 and the movable connection mechanism 420, different types of converters 200 are selected and connected to the general part 100 according to the operation requirements to obtain different degrees of shock wave effect. When the same type of converter 200 is installed, the number of wire changes can be reduced, and the purpose of continuous fracturing operation can be achieved without removing the equipment from the working hole.

[0032] Example 5 Please see Figures 1 to 7 A plurality of hollowed-out grooves 330 are provided at intervals along the outer circumferential surface of the column 310a, with the opening of each hollowed-out groove 330 facing the outer wall of the column 310a; a V-shaped rod 340 is composed of two connecting rods hinged at one end; wherein the outer wall of one end of the V-shaped rod 340 is installed on the inner wall of the hollowed-out groove 330; a guide wheel 350 is installed on the other end of the V-shaped rod 340; a spring 360 is installed in the opening of the V-shaped rod 340; a plug 370 is provided at intervals at the end of the column 310a away from the general part 100; wherein a plurality of support plates 390 are provided between the plug 370 and the outer edge of the column 310a; a first airbag 380a and a second airbag 380b are respectively sleeved on the plug 370 and the outer wall of the column 310a, and the first airbag 380a and the second airbag 380b are connected to an air source through a second air pipe.

[0033] In the above embodiment, the V-shaped rod 340 and the guide wheel 350 are used to support the column 310a as it moves along the inner wall of the working hole. Since the hole wall is not completely smooth, the spring 360 can extend and retract when the guide wheel 350 encounters a protrusion or depression in the hole wall, so that the V-shaped rod 340 pushes the guide wheel 350 to always abut against the hole wall. When the working area is reached, the air source inflates the first airbag 380a and the second airbag 380b through the second air pipe, causing the first airbag 380a and the second airbag 380b to expand, so that a sealed water storage space is formed between the first airbag 380a and the second airbag 380b.

[0034] Example 6 Please see Figures 1 to 7The pushing mechanism 410 includes: mounting plates 411, spaced apart and circumferentially sleeved on the general-purpose part 100; multiple pneumatic telescopic rods 412, each corresponding to a receiving cavity 310b, the pneumatic telescopic rods 412 being mounted on each mounting plate 411, and the movement trajectory of their output ends coinciding with the axis of the receiving cavity 310b; wherein each pneumatic telescopic rod 412 is connected to an air source via a third air pipe 413; a sealing plate 414 is located at the output end of the pneumatic telescopic rods 412, and one end of the sealing plate 414 away from the pneumatic telescopic rods 412 is connected to each converter 200; wherein a raising block 415 is provided between the converter 200 and the sealing plate 414.

[0035] In the above embodiment, when it is necessary to push one of the converters 200, the air source inflates the pneumatic telescopic rod 412 through the third air pipe 413. The pneumatic telescopic rod 412 is composed of multiple sleeves. The outermost sleeve and the innermost sleeve are closed at the ends, so that after the inside is inflated, the inner sleeve can be pushed to extend to one side. When the pneumatic telescopic rod 412 pushes the connection end of the converter 200 to a height exceeding the end wall of the general part 100, the end of the movable connection mechanism 420 rotates to the gap between the converter 200 and the pneumatic telescopic rod 412, and its end contacts the connection end of the converter 200. The heightening block 415 is used to provide this gap, so that the end of the movable connection mechanism 420 can smoothly enter the gap.

[0036] Example 7 Please see Figures 1 to 7 The movable connection mechanism 420 includes: a drive motor 421, mounted on the side of the plug 370 near the column 310a; wherein the output shaft of the drive motor 421 faces the center of the end wall of the column 310a; a shield 422, covering the drive motor 421; an L-shaped rod 423, one end of which is connected to the output shaft of the drive motor 421; and a conductor plate 424, one end of which is rotatably connected to the end wall of the universal part 100; wherein the end of the L-shaped rod 423 away from the drive motor 421 cooperates with the conductor plate 424 to push the conductor plate 424 to rotate around the axis of the universal part 100.

[0037] In the above embodiment, when it is necessary to drive the conductor plate 424 to rotate, the drive motor 421 is started, so that the output shaft of the drive motor 421 rotates and drives the L rod 423 to rotate around the output shaft axis. When the L rod 423 rotates to one side of the conductor plate 424, it will continue to rotate and push the conductor plate 424 to rotate around the axis of the general part 100, thereby pushing the end of the conductor plate 424 to contact the connection end of the converter 200.

[0038] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0039] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A controllable shock wave fracturing device, characterized in that, include: A universal part (100) extending into the working hole and a multi-type converter (200); wherein The general unit (100) is used to store and controllably output energy, regulate equipment operation and adapt to fracturing scenarios, and the converter (200) is used to receive the energy and regulation signals from the general unit (100) and convert them into fracturing energy acting on the object to be fractured. A storage unit (300) having multiple receiving cavities (310b) is installed at one end of the general unit (100), and various types of converters (200) are disposed within each of the receiving cavities (310b); wherein The end of the general part (100) is disposed through the end wall of the storage part (300) and is used to connect to various types of converters (200). A type conversion mechanism (400), arranged circumferentially along the general part (100), includes: a pushing mechanism (410) and a movable connecting mechanism (420); wherein The pushing mechanism (410) is installed circumferentially along the general part (100), and the output end is provided in each of the receiving cavities (310b) for pushing out the converter (200) provided in each of the receiving cavities (310b); The movable connection mechanism (420) is provided at the end of the storage unit (300) for electrically connecting the converter (200) pushed out by the push mechanism (410) and the general unit (100).

2. The controllable shock wave fracturing equipment according to claim 1, characterized in that, The general unit (100) includes: Auxiliary support mechanism (110) and general equipment mechanism (120); wherein The general equipment mechanism (120) includes a magnetic positioner (122), a high-voltage power supply (123), a capacitor (124), and an energy controller (125) connected in sequence. and a control device (121), which is located outside the working hole and electrically connected to the magnetic positioning instrument (122); wherein The end of the energy controller (125) away from the capacitor (124) extends out of the end face of the storage section (300) and is used to connect to one end of the movable connection mechanism (420); The auxiliary support mechanism (110) includes: An insulating tube (111) for wiring, one end of which is used to mount the general equipment mechanism (120).

3. The controllable shock wave fracturing equipment according to claim 2, characterized in that, The auxiliary support mechanism (110) also includes: A collar (112) is fitted around the circumference of the insulating tube (111); Multiple mounting rods (113) are connected at one end to the collar (112) around the circumference, and each mounting rod (113) is arranged in a radiating manner with the collar (112) as the center; A sprocket (114) is rotatably mounted at the end of each of the mounting rods (113); Friction rod (115), one end of which is connected to the sprocket (114); The chain (116) is in the form of a ring and passes through each of the sprockets (114); A piston cylinder (117) has its cylinder body mounted on the outer circumferential surface of the collar (112), and the chain (116) passes through the piston plate of the piston cylinder (117) and is sealed between the piston plate and the piston plate; wherein One end of the piston cylinder (117) is slidably sealed to the chain (116); The first air pipe (118) is arranged inside the insulating pipe (111), with one end connected to the closed end of the piston cylinder (117) and the other end connected to the air source outside the working hole.

4. The controllable shock wave fracturing equipment according to claim 1, characterized in that, The storage unit (300) includes: A column (310a) is provided at one end of the general-purpose part (100); Mounting holes (320) are provided along the axis of the column (310a) and through the column (310a); wherein One end of the general-purpose part (100) is provided through the mounting hole (320); The receiving cavities (310b) are spaced apart and extend through both ends of the column (310a). The receiving cavities (310b) are cylindrical and their axes are parallel to the axis of the column (310a).

5. The controllable shock wave fracturing equipment according to claim 4, characterized in that, A plurality of hollow grooves (330) are also provided at intervals along the outer peripheral surface of the column (310a), and the opening of each hollow groove (330) faces the outer wall of the column (310a). The V-shaped bar (340) consists of two connecting rods that are hinged at one end; in One end of the outer wall of the V-shaped rod (340) is installed on the inner wall of the hollow groove (330); A guide wheel (350) is mounted on the other end of the V-shaped rod (340); A spring (360) is installed inside the opening of the V-shaped rod (340); A plug (370) is spaced apart at one end of the column (310a) away from the general-purpose part (100); wherein Multiple support plates (390) are provided between the plug (370) and the outer edge of the column (310a). The first airbag (380a) and the second airbag (380b) are respectively fitted onto the plug (370) and the outer wall of the column (310a). The first airbag (380a) and the second airbag (380b) are connected to the air source through the second air tube.

6. The controllable shock wave fracturing equipment according to claim 1, characterized in that, The push mechanism (410) includes: Mounting plate (411) is spaced out and sleeved around the circumference of the general part (100); Multiple pneumatic telescopic rods (412) are provided, each pneumatic telescopic rod (412) corresponding one-to-one with each of the receiving cavities (310b). The pneumatic telescopic rods (412) are mounted on each mounting plate (411), and the movement trajectory of the output end coincides with the axis of the receiving cavity (310b); wherein Each of the aforementioned pneumatic telescopic rods (412) is connected to an air source via a third air pipe (413); A sealing plate (414) is disposed at the output end of the pneumatic telescopic rod (412), and the end of the sealing plate (414) away from the pneumatic telescopic rod (412) is connected to each of the converters (200); wherein A heightening block (415) is provided between the converter (200) and the sealing plate (414).

7. The controllable shock wave fracturing equipment according to claim 5, characterized in that, The movable connection mechanism (420) includes: A drive motor (421) is mounted on the side of the plug (370) near the column (310a); wherein The output shaft of the drive motor (421) is oriented toward the center of the end wall of the column (310a); A shield (422) is provided over the drive motor (421); L-shaped rod (423), one end of which is connected to the output shaft of the drive motor (421); Conductor plate (424), one end of which is rotatably connected to the end wall of the general part (100); wherein The end of the L-rod (423) away from the drive motor (421) engages with the conductor plate (424) to push the conductor plate (424) to rotate around the axis of the general part (100).

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