High-repeatability controllable methane gas explosion seismic source system
By designing a highly repeatable and controllable methane gas explosion source system, using components such as rigid cavity, gas explosion chamber and precision detonator, the problem of difficult to accurately control the methane gas explosion source system in the existing technology is solved, and the seismic waves are realized The stable generation and superposition effect improves the safety and controllability of the blasting environment.
Patent Information
- Application Number
- CN202411471800.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-01-10
AI Technical Summary
The existing methane gas explosion source system is difficult to accurately control the gas release amount and explosion intensity, resulting in unstable seismic wave signal quality and poses safety hazards.
A highly repeatable and controlled methane gas explosion source system is designed, including rigid cavity, gas explosion cavity and precision detonator. It is realized through flexible inner shell, anti-decay cushion layer, protective ring and fast gas stirrer and other components. The precise control and safe release of methane gas ensures that seismic waves are stablely generated at the same location and achieve superposition effect.
The stable generation and superposition effect of seismic waves is achieved, the safety and controllability of the blasting environment are improved, the damage to rocks is reduced, and the reliability and safety of gas explosions are ensured.
Smart Images
Figure CN119289811A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mountain blasting, in particular to a highly repeatable and controllable methane gas explosion source system. Background Art
[0002] In the prior art, methane gas explosion source systems are mainly used to replace explosives for blasting purposes, and are rarely used in the field of seismic exploration. The traditional method of using gas explosion sources in the field of geological exploration is to release methane mixed gas underground to produce explosions and form seismic waves to detect underground structures.
[0003] However, in the existing technology, the release amount of methane gas and the explosion intensity are difficult to accurately control, which affects the quality of the seismic wave signal. There is a lack of effective safety mechanisms. Once an accident occurs, it may lead to serious safety accidents. For this reason, we propose a highly repeatable and controllable methane gas explosion source system. Summary of the invention
[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a highly repeatable and controllable methane gas explosion source system. By precisely controlling the release amount of methane gas and the explosion conditions, the stable generation of seismic waves at the same location is achieved, and a superposition effect is achieved, which can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly repeatable and controllable methane gas explosion source system, comprising a rigid cavity, a gas explosion cavity and a precise initiator; Rigid cavity: a flexible liner is arranged inside the rigid cavity, and the interior of the flexible liner is filled with a strong conductive medium. A vibration plate is arranged at the lower end of the rigid cavity, and the vibration plate is located at the lower end of the flexible liner; Gas explosion chamber: It is arranged inside the rigid cavity, a high-pressure air inlet pipe is arranged at the upper end of the gas explosion chamber, a fast gas agitator is arranged inside the high-pressure air inlet pipe, a directional exciter is arranged on the outer fixed sleeve at the lower end of the gas explosion chamber, and a reflector is arranged at the upper end of the gas explosion chamber; Precision detonator: It is installed at the upper end of the gas explosion chamber. By precisely controlling the release amount of methane gas and the explosion conditions, it achieves the stable generation of seismic waves at the same location and realizes the superposition effect.
[0006] Furthermore, an anti-decay cushion layer 1 and an anti-decay cushion layer 2 are provided at the lower end of the rigid cavity from top to bottom, so as to reduce the damage and destruction of rocks outside the blasting range.
[0007] Furthermore, an anti-collision well body is provided at the upper end of the anti-decay cushion layer 1, and the vibration plate and the rigid cavity are both located inside the anti-collision well body to ensure the safe development of the gas explosion.
[0008] Furthermore, a top layer protection ring, a middle layer protection ring 1, a middle layer protection ring 2 and a bottom layer protection ring are fixedly mounted on the outside of the rigid cavity in sequence from top to bottom to control the side impact during explosion.
[0009] Furthermore, a rib is provided at the lower end of the second anti-decay cushion layer to control the impact on the bottom during explosion.
[0010] Furthermore, it also includes an adjustable limiter, which includes a winch, a support frame, a screw rod and a connecting head. The upper end of the rigid cavity is provided with a support frame, and a screw nut is rotatably connected to the middle of the upper surface of the support frame. A winch is provided on the outside of the screw nut, and a screw rod is connected to the internal thread of the screw nut. A connecting head is provided at the lower end of the screw rod, and an air explosion chamber is provided at the lower end of the connecting head. The air explosion chamber can be accurately positioned and adjusted in height to a precise specified height.
[0011] Furthermore, the support frame is connected to the upper end of the rigid cavity by bolts to fix the support frame.
[0012] Furthermore, the fast gas agitator includes an inner spiral and exhaust holes. The interior of the high-pressure air inlet pipe is provided with an inner spiral, and the outer arc surface of the high-pressure air inlet pipe is provided with evenly distributed exhaust holes, which can control the direction and speed of gas flow.
[0013] Furthermore, the outer sleeve of the connector is provided with a protective cover to protect the connector.
[0014] Furthermore, the reflector is located at the upper end of the connector to reflect the explosion and generate shock waves.
[0015] Compared with the prior art, the beneficial effects of the present invention are: the highly repeatable and controllable methane gas explosion source system has the following advantages: 1. Drill a well in the stratum according to the diameter and depth required by the drawings, lay anti-decay cushion layer 1 and anti-decay cushion layer 2 at the bottom of the well, and then lower the flexible liner, rigid cavity, and vibration plate into the well in sequence according to the requirements of the drawings to build a safe and reliable environmental unit that ensures the superimposed effect of gas explosion.
[0016] 2. After the explosion environment system is constructed, the anti-bumping well body, top layer protection ring, middle layer protection ring 1, middle layer protection ring 2, bottom layer protection ring and ribs are lowered into the well in sequence according to the requirements of the drawings, and are fixed and compacted with well filling to ensure the safe implementation of the gas explosion.
[0017] 3. High-pressure air enters the high-pressure air intake pipe through the connector, and the speed is reduced and fully dispersed in the inner spiral. The inner spiral and the exhaust hole can control the direction and speed of gas flow. When two or more gases are injected, it is conducive to the full mixing of the gases and can avoid static electricity generated during mixing. It is used for safe filling, mixing, and storage of methane, oxygen and other gases.
[0018] 4. According to the amount and pressure of methane and other gases filled, the ignition intensity is adjusted through the precision detonator to ensure the controllability of the explosion. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the adjustable limiter of the present invention; Figure 3 It is a schematic structural diagram of the rapid gas agitator of the present invention.
[0020] In the figure: 1 adjustable limiter, 2 protective cover, 3 precise detonator, 4 fast gas agitator, 5 directional exciter, 6 vibration plate, 7 reflection cover, 8 gas explosion chamber, 9 flexible liner, 10 strong conductive medium, 11 rigid cavity, 12 anti-impact well body, 13 anti-decay cushion layer 1, 14 anti-decay cushion layer 2, 15 top layer protection ring, 16 middle layer protection ring 1, 17 middle layer protection ring 2, 18 bottom layer protection ring, 19 rib plate, 20 winch, 21 support frame, 22 bolts, 23 screw rod, 24 connector, 25 high-pressure air intake pipe, 26 inner spiral, 27 exhaust hole. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.
[0022] See also Figure 1-3 , This embodiment provides a technical solution: a highly repeatable and controllable methane gas explosion source system, including a rigid cavity 11, a gas explosion cavity 8 and a precise initiator 3; Rigid cavity 11: a flexible liner 9 is arranged inside thereof, and a strong conductive medium 10 is filled inside the flexible liner 9. A vibration plate 6 is arranged at the lower end of the rigid cavity 11, and the vibration plate 6 is located at the lower end of the flexible liner 9. The lower end of the rigid cavity 11 is provided with an anti-fading cushion layer 13 and an anti-fading cushion layer 2 14 from top to bottom. The upper end of the anti-fading cushion layer 13 is provided with an anti-collision well body 12. The vibration plate 6 and the rigid cavity 11 are both located inside the anti-collision well body 12. The outside of the rigid cavity 11 is fixed in sequence from top to bottom. The casing is provided with a top layer protection ring 15, a middle layer protection ring 16, a middle layer protection ring 2 17 and a bottom layer protection ring 18, and a rib plate 19 is provided at the lower end of the anti-decay cushion layer 2 14. First, a detonation environment system is constructed, and a well is drilled in the formation according to the caliber and well depth required by the drawings, and the anti-decay cushion layer 1 13 and the anti-decay cushion layer 2 14 are laid at the bottom of the well. Then, the flexible liner 9, the rigid cavity 11, and the vibration plate 6 are sequentially lowered into the well according to the requirements of the drawings, and an explosion-proof safety control device is installed. The explosion-proof safety control device is composed of an anti-collision well body 12, a top layer protection ring 15, a middle layer protection ring 16, a middle layer protection ring 2 17 and a bottom layer protection ring 18, and a rib plate 19, which are sequentially lowered into the well according to the requirements of the drawings, and are fixed and compacted with a filling well; Gas explosion chamber 8: It is arranged inside the rigid cavity 11, and a high-pressure air inlet pipe 25 is arranged at the upper end of the interior of the gas explosion chamber 8, and a fast gas agitator 4 is arranged inside the high-pressure air inlet pipe 25. A directional exciter 5 is arranged outside the lower end of the gas explosion chamber 8, and a reflector 7 is arranged at the upper end of the gas explosion chamber 8. The fast gas agitator 4 includes an inner spiral 26 and an exhaust hole 27. An inner spiral 26 is arranged inside the high-pressure air inlet pipe 25, and the outer arc surface of the high-pressure air inlet pipe 25 is provided with evenly distributed exhaust holes 27. The methane gas storage unit is composed of a fast gas agitator 4, a directional exciter 5 and a gas explosion chamber 8. The high-pressure air enters the high-pressure air inlet pipe 25 through the connector 24, and the speed is reduced and fully dispersed in the inner spiral 26. The inner spiral 26 and the exhaust hole 27 can control the direction and speed of the gas flow. When two or more gases are infused, it is beneficial to fully mix the gases and can avoid static electricity generated during mixing; Precision detonator 3: It is arranged at the upper end of the gas explosion chamber 8. After all preparations are completed, under the premise of ensuring the safety of personnel, the precision detonator 3 is controlled by an external controller to ignite and detonate according to the amount and pressure of methane and other gases filled.
[0023] Among them: it also includes an adjustable limiter 1, which includes a winch 20, a support frame 21, a screw 23 and a connector 24. The upper end of the rigid cavity 11 is provided with a support frame 21, and the middle part of the upper surface of the support frame 21 is rotatably connected with a screw nut. The outside of the screw nut is provided with a winch 20, and the internal thread of the screw nut is connected with a screw 23. The lower end of the screw 23 is provided with a connector 24, and the lower end of the connector 24 is provided with an air explosion chamber 8. The support frame 21 is connected to the upper end of the rigid cavity 11 by bolts 22. The outer sleeve of the connector 24 is provided with a protective cover 2, and the reflector cover 7 is located at the upper end of the connector 24. The rotation of the winch 20 drives the rotation of the screw nut, and the rotation of the screw nut drives the rise and fall of the screw 23. Since the screw 23 and the screw nut are high-precision transmission matches, the air explosion chamber 8 can be accurately positioned and adjusted to a precise specified height in height.
[0024] The working principle of the highly repeatable controllable methane gas explosion source system provided by the present invention is as follows: first, a detonation environment system is constructed, a well is drilled in the formation according to the caliber and well depth required by the drawings, and an anti-decay cushion layer 13 and an anti-decay cushion layer 2 14 are laid at the bottom of the well, and then the flexible liner 9, the rigid cavity 11, and the vibration plate 6 are sequentially lowered into the well according to the drawings, and an explosion-proof safety control device is installed. The explosion-proof safety control device is composed of an anti-collision well body 12, a top layer protection ring 15, a middle layer protection ring 16, a middle layer protection ring 2 17, and a bottom layer protection ring 18, and a rib plate 19, which are sequentially lowered into the well according to the drawings, and are fixed and compacted with a well filling. Finally, the methane gas storage unit is suspended from the bottom of the adjustable limiter 1, and the rotation of the winch 20 drives the rotation of the screw nut, and the rotation of the screw nut drives the rise and fall of the screw 23. Since the screw rod 23 and the screw nut are high-precision transmission matches, the gas explosion chamber 8 can be accurately positioned and adjusted to the precise specified height. The methane gas storage unit is composed of a fast gas agitator 4, a directional exciter 5 and a gas explosion chamber 8. The high-pressure intake enters the high-pressure intake pipe 25 through the connector 24, and the speed is reduced and fully dispersed in the inner spiral 26. The inner spiral 26 and the exhaust hole 27 can control the direction and speed of the gas flow. When two or more gases are injected, it is beneficial to fully mix the gases and avoid static electricity generated during mixing. After all preparations are completed, under the premise of ensuring the safety of personnel, the precise detonator 3 is controlled by an external controller to excite and detonate according to the amount and pressure of methane and other gases injected.
[0025] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. Highly repeatable and controllable methane gas explosion source system, characterized by: It comprises a rigid cavity (11), a gas explosion cavity (8) and a precision detonator (3); A rigid cavity (11): a flexible inner liner (9) is arranged inside the rigid cavity (11), the interior of the flexible inner liner (9) is filled with a strong conductive medium (10), a vibration plate (6) is arranged at the lower end of the rigid cavity (11), and the vibration plate (6) is located at the lower end of the flexible inner liner (9); A gas explosion chamber (8): the gas explosion chamber (8) is arranged inside the rigid cavity (11); a high-pressure air inlet pipe (25) is arranged at the upper end of the gas explosion chamber (8); a fast gas agitator (4) is arranged inside the high-pressure air inlet pipe (25); a directional exciter (5) is fixedly sleeved outside the lower end of the gas explosion chamber (8); and a reflector (7) is arranged at the upper end of the gas explosion chamber (8); Precision detonator (3): It is arranged at the upper end of the gas explosion chamber (8).
2. The highly repeatable controllable methane gas explosion source system according to claim 1, characterized in that: The lower end of the rigid cavity (11) is provided with an anti-fading cushion layer 1 (13) and an anti-fading cushion layer 2 (14) in sequence from top to bottom.
3. The highly repeatable controllable methane gas explosion source system according to claim 2 is characterized in that: An anti-collision well body (12) is provided at the upper end of the anti-decay cushion layer 1 (13), and the vibration plate (6) and the rigid cavity (11) are both located inside the anti-collision well body (12).
4. The highly repeatable and controllable methane gas explosion source system according to claim 1, characterized in that: The outside of the rigid cavity (11) is fixedly sleeved with a top layer protection ring (15), a middle layer protection ring 1 (16), a middle layer protection ring 2 (17) and a bottom layer protection ring (18) in sequence from top to bottom.
5. The highly repeatable controllable methane gas explosion source system according to claim 2, characterized in that: A rib plate (19) is provided at the lower end of the second anti-decay cushion layer (14).
6. The highly repeatable and controllable methane gas explosion source system according to claim 1, characterized in that: The invention also comprises an adjustable limiter (1), wherein the adjustable limiter (1) comprises a capstan (20), a support frame (21), a screw rod (23) and a connecting head (24); the upper end of the rigid cavity (11) is provided with the support frame (21); a screw rod nut is rotatably connected to the middle of the upper surface of the support frame (21); the capstan (20) is provided on the outside of the screw rod nut; the screw rod (23) is connected to the inner thread of the screw rod nut; the lower end of the screw rod (23) is provided with a connecting head (24); and the lower end of the connecting head (24) is provided with an air explosion chamber (8).
7. The highly repeatable controllable methane gas explosion source system according to claim 6, characterized in that: The support frame (21) is connected to the upper end of the rigid cavity (11) via bolts (22).
8. The highly repeatable and controllable methane gas explosion source system according to claim 1, characterized in that: The fast gas agitator (4) comprises an inner spiral (26) and exhaust holes (27); the inner part of the high-pressure air inlet pipe (25) is provided with the inner spiral (26); and the outer arc surface of the high-pressure air inlet pipe (25) is provided with evenly distributed exhaust holes (27).
9. The highly repeatable controllable methane gas explosion source system according to claim 6, characterized in that: The outer sleeve of the connector (24) is provided with a protective cover (2).
10. The highly repeatable controllable methane gas explosion source system according to claim 6, characterized in that: The reflective cover (7) is located at the upper end of the connecting head (24).