Shock wave generator for sealing hole through water bag

Abstract

The invention relates to the technical field of mine engineering, in particular to a shock wave generator with a hole sealed through a water bag, which comprises a drill pipe, the outer surface of the drill pipe is fixedly sleeved with a supporting piece, the upper side of the supporting piece is provided with pipe sleeves, the upper side and the lower side of each pipe sleeve are respectively provided with a sealing bag, and a connecting sleeve is arranged between the two pipe sleeves. A movable sleeve is slidably mounted at the inner end of the pipe sleeve, a connecting seat is fixedly mounted at the inner end of the movable sleeve, a metal wire load is detachably connected to the output end of the connecting seat, after a cavity between the two sealed bags is filled with water, the metal wire load is immersed, and a pressure stabilizing device is arranged between the pipe sleeve and the sealed bags. The area to be crushed is defined into a relatively closed independent space in the drill hole, accurate positioning and energy centralized control of the specific crushing area are achieved, the pertinence and efficiency of crushing operation are effectively improved, the problems of energy dissipation and vibration efficiency reduction caused by water loss are solved, and the shock wave transmission stability is enhanced.

Description

Technical Field

[0001] This invention relates to the field of mining engineering technology, specifically to a shock wave generator that uses a water-filled bladder for sealing. Background Art

[0002] A shock wave generator is a device that uses instantaneous energy release to generate high-pressure gas or shock waves. It is widely used in engineering fields such as mining, geological exploration, oil and gas production enhancement, and hydraulic blasting. In existing technologies, common shock wave generators generate high-pressure shock waves in the borehole through electric ignition, gas explosion, or chemical reaction, thereby disturbing or breaking the surrounding rock mass or medium.

[0003] In existing technologies, the inability to determine whether there are abnormalities such as air pockets at the bottom of the hole can easily affect the continuity and stability of the shock wave transmission path, thereby reducing the effectiveness of the crushing operation. Existing devices also lack structures or means to determine whether the shock wave window has been completely submerged during the water injection process, which can easily create blind spots in the operation and pose certain safety hazards. At the same time, it can also cause the shock wave energy to easily diffuse in the channel, making it difficult to concentrate on a specific area, resulting in low energy utilization efficiency and unsatisfactory crushing effect. Therefore, this application proposes a shock wave generator that uses a water-filled bladder to seal the hole. Summary of the Invention

[0004] The purpose of this invention is to provide a shock wave generator that uses a water-filled bladder to seal the hole, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a shock wave generator with a water-filled bladder, comprising a drill pipe, a support member fixedly sleeved on the outer surface of the drill pipe, and a sleeve on the upper side of the support member. Water flows through the drill pipe and enters the interior of the two sleeves. A sealing bladder is provided on both the upper and lower sides of the sleeve. After the sealing bladder is filled with water and expands, it comes into close contact with the borehole wall to form a support, while separating the borehole into an independent cavity. A connecting sleeve is provided between the two sleeves. A movable sleeve is slidably installed on the inner end of the sleeve. A connecting seat is fixedly installed on the inner end of the movable sleeve by bolts. A metal wire load is detachably connected to the output end of the connecting seat. The metal wire load can be removed from the connecting seat at any time. When the cavity between the two sealing bladders is filled with water, the metal wire load is submerged. A pressure stabilizing device is provided between the sleeve and the sealing bladder to maintain stable pressure inside the bladder.

[0006] As a further embodiment of the present invention, a suspension cover is fixedly installed on the upper end of the movable sleeve by bolts, and a suspension bladder is fixedly installed on the inner end of the suspension cover by clamps. The suspension bladder can drive the movable sleeve to move upward under its own buoyancy. Multiple guide shells are fixedly installed on the inner bottom end of the movable sleeve. The guide shells are arranged in a ring shape, and a self-locking block is slidably installed on the inner end of each guide shell.

[0007] As a further embodiment of the present invention, a guide rod is fixedly installed at the inner end of the guide shell, and the free end of the guide rod passes through the interior of the self-locking block. The guide rod and the self-locking block are connected by a return spring, so that the self-locking block compresses the return spring under the impact of the shock wave, and then returns to the initial state under the elastic force of the return spring.

[0008] As a further embodiment of the present invention, a winding is rotatably installed on the inner bottom end of the drill pipe, and a traction line is wound around the outer surface of the winding. The free end of the traction line is fixedly connected to the bottom end of the movable sleeve to limit the movable sleeve from continuing to move upward under the action of buoyancy.

[0009] As a further embodiment of the present invention, the stabilizing device includes a pressure stabilizing cylinder, which is fixedly connected to the outer surface of the drill pipe, and the output end of the pressure stabilizing cylinder is detachably connected to the pipe sleeve. An isolation plate is fixedly installed at the inner end of the pressure stabilizing cylinder, and a pressure chamber is fixedly sleeved at the inner end of the pressure stabilizing cylinder. The pressure chamber and the isolation plate are on the same axis. By setting the pressure stabilizing cylinder and fixing it to the outer surface of the drill pipe, the stabilizing device achieves a detachable connection with the pipe sleeve, which facilitates installation and maintenance.

[0010] As a further embodiment of the present invention, the inner end of the isolation plate is provided with a plurality of water seepage holes arranged in a ring. Each water seepage hole is provided with a movable rod, and the movable rod is connected to the isolation plate by an auxiliary spring. A sealing plate is fixedly connected to the outer surface of the movable rod, and the sealing plate is tightly fitted to the inner wall of the water seepage hole.

[0011] As a further embodiment of the present invention, a sealing cylinder is fixedly installed at the inner end of the pressure chamber, and multiple support frames are rotatably installed at the end of the sealing cylinder away from the pressure chamber. The support frames are arranged in a ring shape, and an isolation membrane is fixedly sleeved on the outer surface of the support frame. The isolation membrane passes through the center of the isolation plate. When water flows into the interior of the isolation membrane, the isolation membrane expands and comes into close contact with the inner edge of the isolation plate, forming a sealing barrier to prevent water from flowing through.

[0012] As a further embodiment of the present invention, a sealing sleeve is fixedly connected to the outer surface of the pressure chamber, and a limiting block is inserted inside the sealing sleeve. Multiple protrusions are fixedly installed on the outer surface of the limiting block, and the protrusions correspond to the support frame. An anti-pressure plate is fixedly installed at the inner end of the pressure chamber, and multiple holes are opened on the outer surface of the pressure chamber, with the holes located on the left side of the anti-pressure plate.

[0013] As a further embodiment of the present invention, a sealing cylinder is fixedly sleeved on the inner end of the pressure-resistant plate, a passive plug is sleeved on the inner end of the sealing cylinder, and the passive plug is connected to the limiting block through a central rod. A connecting block is fixedly installed on the end of the passive plug away from the central rod. A plurality of rectangular holes are opened on the outer surface of the sealing cylinder, and a plurality of abutment springs are fixedly installed on the outer surface of the connecting block. The abutment springs pass through the rectangular holes and contact the inner wall of the pressure chamber.

[0014] As a further embodiment of the present invention, a plurality of limiting plates are fixedly installed on the outer surface of the sleeve, the limiting plates are arranged in a ring, and an isolation strip is sleeved on the outer surface of the sleeve. The isolation strip is located inside the limiting plates, and a support ring is fixedly connected to one end of the isolation strip away from the limiting plates, and the support ring is located on the upper side of the limiting plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When using this invention, by setting two sealed bags, the area to be crushed is enclosed into a relatively closed independent space inside the borehole, which realizes precise positioning and concentrated energy control of the specific crushing area, effectively improving the targeting and efficiency of the crushing operation. At the same time, an isolation strip structure is set between the two sealed bags to further separate the chambers between them. The isolation strip effectively blocks the direct contact between water and the inner wall of the borehole, preventing water from seeping into the borehole wall and avoiding waste of water resources.

[0017] 2. When the present invention is used, the stable pressure inside the sealed bag can effectively avoid pressure fluctuations caused by the release of external shock wave energy or media disturbance, ensuring that the water pressure inside the sealed bag remains stable and preventing the bag from expanding, deforming or bursting due to sudden pressure changes caused by external shock waves, thus further improving the sealing reliability and structural safety of the device.

[0018] 3. This invention combines the winding and releasing traction line to move the movable sleeve upward, allowing the metal wire load to flexibly adjust its vertical position in the borehole. This effectively solves the problem that traditional structures cannot effectively break up deep areas at the bottom of the hole, improves the adaptability of the device to target areas of different depths and the range of breaking up, and enhances the accuracy and energy utilization efficiency of the breaking up operation. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the shock wave generator.

[0020] Figure 2 This is a disassembled diagram of the shock wave generator;

[0021] Figure 3 This is a structural diagram of the isolation zone;

[0022] Figure 4 This is an internal disassembly diagram of the locking ring;

[0023] Figure 5 A schematic diagram of the internal structure of the movable sleeve and the drill pipe;

[0024] Figure 6 A schematic diagram of the internal structure of the guide shell and the self-locking block;

[0025] Figure 7 This is a schematic diagram of the structure of the pressure stabilizing cylinder inside the sleeve.

[0026] Figure 8 This is a schematic diagram of the internal structure of the pressure stabilizing cylinder;

[0027] Figure 9 This is a schematic diagram of the internal structure of the isolation plate;

[0028] Figure 10 This is a schematic diagram of the internal structure of the separator membrane;

[0029] Figure 11 This is a schematic diagram of the internal structure of the pressure chamber;

[0030] Figure 12 This is a schematic diagram of the internal structure of the sealing cylinder;

[0031] Figure 13 This is a diagram showing the working state of the shock wave generator.

[0032] In the diagram: 1. Drill pipe; 2. Hole baffle; 3. Support component;

[0033] 101. Sealing bag; 102. Pressure stabilizing cylinder; 103. Isolation plate; 104. Isolation membrane; 105. Pressure chamber; 106. Auxiliary spring; 107. Movable rod; 108. Sealing plate;

[0034] 201. Limiting plate; 202. Locking ring; 203. Isolation strip; 204. Support ring; 205. Locking ring; 206. Locking block;

[0035] 301. Tube sleeve; 302. Movable sleeve; 303. Suspension cover; 304. Traction line; 305. Suspension bladder; 306. Metal wire load; 307. Connecting seat; 308. Guide shell; 309. Self-locking block; 310. Guide rod; 311. Return spring; 312. Winding;

[0036] 401. Sealing sleeve; 402. Support frame; 403. Restricting block; 404. Sealing cylinder; 405. Pressure-resistant plate; 406. Center rod; 407. Contact spring; 408. Connecting block; 409. Passive plug. Detailed Implementation

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1 - Figure 4 A shock wave generator that seals the borehole with a water bladder includes a drill pipe 1, a support member 3 fixedly sleeved on the outer surface of the drill pipe 1, and a sleeve 301 on the upper side of the support member 3. Water flows through the drill pipe 1 and enters the interior of the two sleeves 301. A sealing bladder 101 is provided on both the upper and lower sides of the sleeve 301. After the sealing bladder 101 is filled with water and expands, it comes into close contact with the borehole wall to form a support, while separating the borehole into an independent cavity. A sleeve 301 is provided between the two sleeves 301.

[0039] Specifically, a movable sleeve 302 is slidably installed on the inner end of the sleeve 301. The outer surface of the movable sleeve 302 has multiple rectangular holes to allow water to enter the interior of the movable sleeve 302. A rectangular slider is fixedly installed on the outer surface of the movable sleeve 302. A rectangular groove is opened on the inner end of the sleeve 301. The rectangular slider passes through the interior of the rectangular groove to prevent the movable sleeve 302 from rotating. A connecting seat 307 is fixedly installed on the inner end of the movable sleeve 302 by bolts. A metal wire load 306 is detachably connected to the output end of the connecting seat 307. The metal wire load 306 can be removed from the connecting seat 307 at any time.

[0040] After the chamber between the two sealed bags 101 is filled with water and the wire load 306 is submerged, the ground equipment supplies high-voltage direct current (ground equipment is a pulse power source) to the wire load 306 through the connecting seat 307, causing it to undergo intense resistance heating in a very short time and rapidly vaporize the surrounding water, forming a high-temperature and high-pressure plasma cloud or gas expansion area. The rapid expansion of this gas forms a high-intensity shock wave in a limited space, which propagates along the inside of the borehole and performs real-time crushing operations on the borehole wall.

[0041] A pressure stabilizing device is provided between the sleeve 301 and the sealed bag 101 to maintain the internal pressure of the bag and keep it at a stable pressure (0.5MPa) according to the design pressure. The drill pipe 1 is also equipped with a pressure sensor to observe the water injection pressure and judge abnormal pressure relief. A hole baffle 2 is fitted on the outer surface of the drill pipe 1. After the device is inserted into the borehole, the hole baffle 2 is located at the borehole outlet to effectively prevent the borehole residue from overflowing.

[0042] like Figure 2 - Figure 4 As shown, multiple limiting plates 201 are fixedly installed on the outer surface of the sleeve 301 near the support member 3. The limiting plates 201 are arranged in a ring. The limiting plates 201 are made of metal and have a certain degree of elasticity. The outer surface of the sleeve 301 is covered with an isolation strip 203. The isolation strip 203 is located inside the limiting plate 201. The ends of the limiting plates 201 are provided with clamps. Locking the clamps can prevent the ends of the limiting plates 201 from opening.

[0043] Among them, the end of the isolation strip 203 away from the restriction plate 201 is fixedly connected to the support ring 204. The support ring 204 is located on the upper side of the restriction plate 201, and the end of the support ring 204 away from the restriction plate 201 is rotatably installed with the locking ring 202. Multiple locking blocks 206 are slidably installed on the inner side of the support ring 204. The locking blocks 206 are arranged in a ring. When the locking blocks 206 move towards the end that is close to each other, the outer surface of the sleeve 301 is clamped. The inner end of the locking ring 202 is fixedly installed with the locking ring 205, and multiple triangular blocks are fixed on the inner end of the locking ring 205. Each triangular block corresponds to a locking block 206. The inclined surface on the outer side of the triangular block is in contact with the surface of the locking block 206. When the locking ring 205 rotates, the inclined surface pushes the locking block 206 to move towards the center of the circle.

[0044] The outer surface of the sleeve 301 is provided with a groove. After the locking ring 202 moves to a position away from the support member 3, the locking ring 202 can be rotated to make the locking block 206 embed into the groove of the sleeve 301. The isolation strip 203 moves with the locking ring 202 and completely wraps the sleeve 301. When the water flow of the drill pipe 1 reaches the area of ​​the wire load 306, the isolation strip 203 can prevent the water flow from leaking from the gap in the hole wall and ensure that the impact force is not affected by the loss of water flow.

[0045] Example 2: Please refer to Figure 5 , Figure 6A shock wave generator with a water-filled bladder, based on embodiment 1, has a suspension cover 303 fixedly installed on the upper end of the movable sleeve 302 by bolts, and a suspension bladder 305 fixedly installed on the inner end of the suspension cover 303 by clamps. The suspension bladder 305 can drive the movable sleeve 302 to move upward under its own buoyancy. Multiple guide shells 308 are fixedly installed on the inner bottom end of the movable sleeve 302. The guide shells 308 are arranged in a ring, and a self-locking block 309 is slidably installed on the inner end of each guide shell 308.

[0046] Specifically, the outer surface of the self-locking block 309 is provided with an anti-slip surface. When the self-locking block 309 moves away from the guide shell 308, it contacts the inner wall of the sleeve 301 and achieves stable limiting of the movable sleeve 302 under the action of the anti-slip surface, thereby effectively preventing the metal wire load 306 from violently shaking during the release of the shock wave. Furthermore, the internal structure of the guide shell 308 is arc-shaped, and the arc-shaped surface extends toward the self-locking block 309, so that when the metal wire load 306 releases the shock wave, the impact energy can be transmitted to the self-locking block 309 along the arc-shaped surface, causing the self-locking block 309 to move under the push of the shock wave and press against the inner wall of the sleeve 301, thereby stabilizing the movable sleeve 302.

[0047] A guide rod 310 is fixedly installed on the inner end of the guide shell 308, and the free end of the guide rod 310 passes through the interior of the self-locking block 309. The guide rod 310 and the self-locking block 309 are connected by a return spring 311, so that the self-locking block 309 compresses the return spring 311 under the impact of the shock wave, and then returns to the initial state under the elastic force of the return spring 311.

[0048] More specifically, a winding 312 is rotatably installed on the inner bottom end of the drill pipe 1, and a traction line 304 is wound on the outer surface of the winding 312. The free end of the traction line 304 is fixedly connected to the bottom end of the movable sleeve 302. By rotating the winding 312, the traction line 304 is released, so that the movable sleeve 302, which is connected to the wire load 306, gradually moves upward under the buoyancy provided by the suspension bladder 305 until the movable sleeve 302 moves up to the upper inner end of the pipe sleeve 301. The movable sleeve 302 and the wire load 306 form a component that actively moves as the traction line 304 is released. Its direction of movement is opposite to the direction of gravity, and it floats up spontaneously by relying on buoyancy, thereby moving the wire load 306 down to the vicinity of the bottom end of the borehole.

[0049] An angle self-locking device is provided between the winding 312 and the drill pipe 1. It is used to automatically lock the position after the winding 312 rotates to any angle to prevent it from continuing to rotate. The self-locking device is used to limit the free rotation of the winding 312 and ensure its stability under impact or vibration conditions. Its structure and working principle are existing mature technologies, and will not be elaborated here.

[0050] Please see Figure 7 - Figure 10 The stabilizing device includes a pressure stabilizing cylinder 102, which is fixedly connected to the outer surface of the drill pipe 1. The output end of the pressure stabilizing cylinder 102 is detachably connected to the sleeve 301. The pressure stabilizing cylinder 102 and the sleeve 301 are connected by a sealing ring to increase the sealing performance. Specifically, the sealing bag 101 and the sleeve 301 are snapped together by a pressure ring, and the outer surface of the pressure ring is engraved to increase friction and tighten it so that it is stably fixed to the outer surface of the sleeve 301.

[0051] An isolation plate 103 is fixedly installed at the inner end of the pressure stabilizing cylinder 102, and a pressure chamber 105 is fixedly sleeved at the inner end of the pressure stabilizing cylinder 102. The pressure chamber 105 and the isolation plate 103 are on the same axis. Multiple seepage holes are opened at the inner end of the isolation plate 103. The seepage holes are arranged in a ring. A movable rod 107 is inserted into each seepage hole. The movable rod 107 is connected to the isolation plate 103 by an auxiliary spring 106. A sealing plate 108 is fixedly welded to the outer surface of the movable rod 107. The sealing plate 108 is tightly fitted to the inner wall of the seepage hole. When water flows through, it pushes the sealing plate 108 to the outside of the isolation plate 103 and compresses the auxiliary spring 106 at the same time. When the water flow stops, the sealing plate 108 is reset under the action of the spring, effectively preventing backflow.

[0052] A sealing cylinder 404 is fixedly welded to the inner end of the pressure chamber 105. Multiple support frames 402 are rotatably installed on the end of the sealing cylinder 404 away from the pressure chamber 105 via a rotating shaft. The support frames 402 are arranged in a ring. An isolation membrane 104 is fixedly sleeved on the outer surface of the support frame 402. The isolation membrane 104 passes through the center of the isolation plate 103. When water flows into the interior of the isolation membrane 104, the isolation membrane 104 expands and comes into close contact with the inner edge of the isolation plate 103, forming a sealing barrier to prevent water from flowing through.

[0053] A sealing sleeve 401 is fixedly welded to the outer surface of the pressure chamber 105, and a limiting block 403 is inserted inside the sealing sleeve 401. Multiple protrusions are fixedly installed on the outer surface of the limiting block 403, and the protrusions correspond to the support frame 402. Specifically, when the limiting block 403 moves toward the pressure chamber 105, its outer surface of the protrusion contacts the support frame 402, thereby limiting the rotation of the support frame 402. When the limiting block 403 moves away from the pressure chamber 105, the support frame 402 is released from constraint and can rotate freely, causing the isolation membrane 104 to open and close.

[0054] like Figure 11 , Figure 12As shown, a pressure-resistant plate 405 is fixedly installed at the inner end of the pressure chamber 105. Multiple holes are formed on the outer surface of the pressure chamber 105, located on the left side of the pressure-resistant plate 405, preventing water from flowing into the cavity between the pressure-resistant plate 405 and the pressure chamber 105. A sealing cylinder 404 is fixedly fitted at the inner end of the pressure-resistant plate 405, and a passive plug 409 is fitted at the inner end of the sealing cylinder 404. A sealing ring is fitted on the outer surface of the passive plug 409, and it fits tightly against the inner wall of the sealing cylinder 404 to increase sealing performance. The passive plug 409 is connected to the limiting block 403 via a central rod 406, and a pressure-applying spring is fitted on the outer surface of the central rod 406. The spring, with its two ends abutting against the passive plug 409 and the sealing sleeve 401 respectively, pushes the passive plug 409 forward, thereby causing the limiting block 403 to be continuously pushed towards the sealing cylinder 404, ensuring that the protrusion on the limiting block 403 always keeps in contact with the support frame 402 (to maintain its shape stability and avoid wrinkles or collapse, but at this time it does not bear substantial load or external pressure). The spring only provides the initial unfolding force of the support frame 402. Its preload is designed to maintain the unfolded posture of the support frame 402 in the absence of external force, but allows compression displacement when subjected to ≥0.05MPa water pressure or equivalent mechanical load.

[0055] A connecting block 408 is fixedly installed on the end of the passive plug 409 away from the central rod 406 by bolts. Multiple rectangular holes are opened on the outer surface of the sealing cylinder 404. The rectangular holes are located in the cavity between the isolation plate 103 and the pressure chamber 105 and are arranged in a ring. Multiple abutment springs 407 are fixedly installed on the outer surface of the connecting block 408. The abutment springs 407 pass through the rectangular holes and contact the inner wall of the pressure chamber 105 (spread out in a petal shape). When the passive plug 409 moves and drives the connecting block 408, the abutment springs 407 counteract the thrust of the passive plug 409 through elastic reaction.

[0056] The working principle of this invention is:

[0057] Before use, according to the drilling operation requirements, the isolation belt 203 is placed on the outer surface of the two pipe sleeves 301 as the locking ring 202 moves, so as to form a sealed space. The remaining part that has not been pulled out is locked with the clamp and the limiting plate 201 to prevent the isolation belt 203 from being pulled out further.

[0058] The device is then inserted into the borehole, and water is injected into the sleeve 301 through the drill pipe 1. At this time, the isolation strip 203 quickly fills with water and begins to expand. However, due to the limitation of the inner wall of the borehole, the isolation strip 203 cannot expand further. Under the action of pressure, the water flows into the pressure stabilizing cylinder 102. When the water flows through, it pushes the sealing plate 108 to the outside of the isolation plate 103 and compresses the auxiliary spring 106. The water flows out from the gap between the sealing plate 108 and the isolation plate 103. At this time, the sealing bag 101 is filled with water and begins to expand. The expanded sealing bag 101 contacts the inner wall of the borehole and achieves the effect of sealing water to prevent water from flowing out.

[0059] When the sealed bag 101 is filled with water, the water pressure acts on the outer surface of the passive plug 409 through the rectangular hole on the outer surface of the pressure chamber 105. When the passive plug 409 moves under force, the contact spring 407 moves and contacts the inner wall of the pressure chamber 105. Under the action of water pressure, the contact spring 407 is compressed, and the limiting block 403 also begins to move. The protrusion on its outer surface limits the support frame 402 from continuing to rotate. At this time, the water pressure can only enter through the seepage hole on the outer surface of the isolation plate 103, and the water pressure always maintains the current pressure.

[0060] Subsequently, the ground equipment supplies high-voltage direct current to the wire load 306 through the connecting seat 307, causing it to undergo intense resistance heating and rapidly vaporize the surrounding water in a very short time. The shock wave breaks the hole wall in real time. At the same time, the instantaneous high pressure generated during the operation cannot directly enter the sealed bag 101 through the seepage holes on the outer surface of the isolation plate 103. Because the seepage holes have a small diameter and are evenly distributed, they have a flow-limiting effect.

[0061] At the moment the shock wave occurs, any interconnected location within the sealed environment is within the range of the shock wave. The energy brought by the shock wave will be transferred to the seepage holes on the outer surface of the isolation plate 103. Due to the geometric limitations of the pores, a significant instantaneous pore impedance is formed, which prevents the shock wave from directly penetrating or rapidly transmitting to the interior of the sealed bag 101 in a short time. This ensures that the sealed bag 101 remains in a relatively safe pressure environment when subjected to the shock wave, effectively preventing it from being ruptured due to high-pressure impact.

[0062] Because the shock wave effect range of the metal wire load 306 upon release is approximately spherically distributed, when it is necessary to drill deeper areas (such as...) Figure 13When blasting is carried out in area A (as shown), if the wire load 306 is still located at the center of the sleeve 301, it is difficult to effectively break the deepest part of the borehole. To address this, the traction line 304 is released by rotating the winding 312, causing the movable sleeve 302 connected to the wire load 306 to gradually move upward under the buoyancy provided by the suspension bladder 305 until the movable sleeve 302 moves to the upper inner side of the sleeve 301. Since the movable sleeve 302 and the wire load 306 form a component that actively moves with the release of the traction line 304, its direction of movement is opposite to the direction of gravity. It achieves spontaneous upward movement by relying on buoyancy, thereby moving the wire load 306 down to the vicinity of the bottom of the borehole. This achieves blasting adaptability to target areas at different depths, expands the breaking coverage area, enhances the concentrated release effect of blasting energy, and effectively solves the problems of blasting dead zones and energy waste that exist in traditional fixed blasting devices.

[0063] After the crushing operation, water is released. Due to the high pressure inside the sealed bag 101, the water pressure can directly drive the support frame 402 to rotate through the isolation membrane 104. The passive plug 409 resets during the contact with the elasticity of the spring 407, causing the limiting block 403 to start moving. Therefore, the support frame 402 is not limited by the protrusion on the outer surface of the limiting block 403 when it rotates. After the pressure is completely released, the device is removed and a brand new metal wire load 306 is installed. Then the equipment is moved to the next location, and the process of filling, impacting, and releasing water pressure is repeated until all the work tasks are completed.

[0064] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A shock wave generator with water-filled sealing, comprising a drill pipe (1), characterized in that: A support member (3) is fixedly fitted on the outer surface of the drill pipe (1), and a sleeve (301) is provided on the upper side of the support member (3). Water flows through the drill pipe (1) and enters the interior of the two sleeves (301). A sealing bag (101) is provided on both the upper and lower sides of the sleeve (301). After the sealing bag (101) is filled with water and expands, it comes into close contact with the borehole wall to form a support, while separating the borehole into an independent cavity. A connecting sleeve (305) is provided between the two sleeves (301). A movable sleeve (302) is slidably installed on the inner end of the sleeve (301), and a connecting seat (307) is fixedly installed on the inner end of the movable sleeve (302). A metal wire load (306) is detachably connected to the output end of the connecting seat (307). When the chamber between the two sealed bags (101) is filled with water, the metal wire load (306) is submerged. A pressure stabilizing device is provided between the sleeve (301) and the sealed bag (101) to maintain the internal pressure of the bag stable.

2. The shock wave generator with water-filled pores according to claim 1, characterized in that: The upper end of the movable sleeve (302) is fixedly installed with a suspension cover (303), and the inner end of the suspension cover (303) is fixedly installed with a suspension bladder (305). The suspension bladder (305) can drive the movable sleeve (302) to move upward under its own buoyancy. Multiple guide shells (308) are fixedly installed on the inner bottom end of the movable sleeve (302). The guide shells (308) are arranged in a ring shape, and the inner end of each guide shell (308) is slidably installed with a self-locking block (309).

3. A shock wave generator with a water-filled bladder according to claim 2, characterized in that: A guide rod (310) is fixedly installed on the inner end of the guide shell (308), and the free end of the guide rod (310) passes through the interior of the self-locking block (309). The guide rod (310) and the self-locking block (309) are connected by a return spring (311), so that the self-locking block (309) compresses the return spring (311) under the impact of the shock wave, and then returns to the initial state under the elastic force of the return spring (311).

4. A shock wave generator with a water-filled bladder according to claim 3, characterized in that: The inner bottom end of the drill pipe (1) is rotatably mounted with a winding (312), and the outer surface of the winding (312) is wound with a traction line (304). The free end of the traction line (304) is fixedly connected to the bottom end of the movable sleeve (302) to limit the movable sleeve (302) from continuing to move upward under the action of buoyancy.

5. A shock wave generator with a water-filled bladder according to claim 1, characterized in that: The stabilizing device includes a pressure stabilizing cylinder (102), which is fixedly connected to the outer surface of the drill pipe (1). The output end of the pressure stabilizing cylinder (102) is detachably connected to the sleeve (301). An isolation plate (103) is fixedly installed on the inner end of the pressure stabilizing cylinder (102). A pressure chamber (105) is fixedly sleeved on the inner end of the pressure stabilizing cylinder (102), and the pressure chamber (105) and the isolation plate (103) are on the same axis.

6. A shock wave generator with a water-filled bladder according to claim 5, characterized in that: The inner end of the isolation plate (103) is provided with a plurality of water seepage holes arranged in a ring. Each water seepage hole is provided with a movable rod (107), and the movable rod (107) is connected to the isolation plate (103) by an auxiliary spring (106). A sealing plate (108) is fixedly connected to the outer surface of the movable rod (107), and the sealing plate (108) is tightly fitted to the inner wall of the water seepage hole.

7. A shock wave generator with a water-filled bladder according to claim 5, characterized in that: A sealing cylinder (404) is fixedly installed at the inner end of the pressure chamber (105). Multiple support frames (402) are rotatably installed at the end of the sealing cylinder (404) away from the pressure chamber (105). The support frames (402) are arranged in a ring shape. An isolation membrane (104) is fixedly sleeved on the outer surface of the support frame (402). The isolation membrane (104) passes through the center of the isolation plate (103). When water flows into the interior of the isolation membrane (104), the isolation membrane (104) expands and comes into close contact with the inner edge of the isolation plate (103), forming a sealing barrier to prevent water from flowing through.

8. A shock wave generator with a water-filled bladder according to claim 7, characterized in that: A sealing sleeve (401) is fixedly connected to the outer surface of the pressure chamber (105), and a limiting block (403) is provided inside the sealing sleeve (401). Multiple protrusions are fixedly installed on the outer surface of the limiting block (403), and the protrusions correspond to the support frame (402). A pressure-resistant plate (405) is fixedly installed at the inner end of the pressure chamber (105). Multiple holes are opened on the outer surface of the pressure chamber (105), and the holes are located on the left side of the pressure-resistant plate (405).

9. A shock wave generator with a water-filled bladder according to claim 8, characterized in that: The inner end of the pressure-resistant plate (405) is fixedly fitted with a sealing cylinder (404), and the inner end of the sealing cylinder (404) is fitted with a passive plug (409). The passive plug (409) is connected to the limiting block (403) through a central rod (406). A connecting block (408) is fixedly installed at the end of the passive plug (409) away from the central rod (406). The outer surface of the sealing cylinder (404) is provided with multiple rectangular holes. The outer surface of the connecting block (408) is fixedly installed with multiple abutment springs (407). The abutment springs (407) pass through the rectangular holes and contact the inner wall of the pressure chamber (105).

10. A shock wave generator with a water-filled bladder according to claim 1, characterized in that: Multiple limiting plates (201) are fixedly installed on the outer surface of the sleeve (301). The limiting plates (201) are arranged in a ring shape, and an isolation strip (203) is sleeved on the outer surface of the sleeve (301). The isolation strip (203) is located inside the limiting plate (201). A support ring (204) is fixedly connected to one end of the isolation strip (203) away from the limiting plate (201), and the support ring (204) is located on the upper side of the limiting plate (201).

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