Gas extraction strengthening device based on ultrasonic mechanical effect

Abstract

The utility model provides a gas extraction strengthening device based on an ultrasonic mechanical effect, which comprises a mounting sleeve, a driving mechanism arranged in an inner cavity of the mounting sleeve, a connecting mechanism arranged at the top of the driving mechanism, and a strengthening mechanism arranged at the top of the connecting mechanism. The outer side of the mounting sleeve is connected with a centralizer and a one-way anti-blocking device through connecting pieces, the driving mechanism comprises a hydraulic cylinder, the hydraulic cylinder is arranged in an inner cavity of the mounting sleeve, a piston rod of the hydraulic cylinder is fixedly connected with a moving block, the connecting mechanism comprises a connecting rod, and one end of the connecting rod is rotationally connected with the outer side of the moving block. Compared with hydraulic fracturing, blasting and the like, the gas extraction strengthening device based on the ultrasonic mechanical effect has the advantages that chemical additives are not used, a target area can be processed in a directional and fixed-point mode mainly depending on the physical effect, and parameters are adjustable.

Description

Technical Field

[0001] The utility model relates to the technical field of mining auxiliary equipment, in particular to a gas extraction enhancement device based on ultrasonic mechanical effects. Background Art

[0002] Coalbed methane (CBM) is an important clean energy source and a potential safety hazard in production. Its efficient extraction is a core demand in the coal mining industry. To improve the permeability of coal seams, existing technologies mainly focus on physical field intervention methods, but all of them have significant drawbacks:

[0003] Hydraulic fracturing technology:

[0004] Relying on high-pressure water to crack coal can easily cause instability of the coal seam roof and floor; it consumes a lot of water, which limits its application in water-scarce mining areas, and there is a water lock effect that inhibits gas desorption; the direction of crack expansion is uncontrollable, which may connect to the aquifer and cause well flooding accidents.

[0005] CO2 displacement technology:

[0006] It requires continuous injection of high-pressure gas, which is costly and poses a risk of leakage; it is highly dependent on the adsorption characteristics of the coal matrix and lacks universal applicability.

[0007] Electric pulse / microwave excitation technology:

[0008] High voltage operations in coal mines have poor explosion safety; the energy decays quickly and the range of action is limited.

[0009] Therefore, it is necessary to provide a gas extraction enhancement device based on ultrasonic mechanical effect to solve the above technical problems. Utility Model Content

[0010] In order to solve the above technical problems, the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect.

[0011] The utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, which includes a mounting sleeve, an inner cavity of the mounting sleeve is provided with a driving mechanism, a top of the driving mechanism is provided with a connecting mechanism, a top of the connecting mechanism is provided with a strengthening mechanism, and the outer side of the mounting sleeve is respectively connected to a centralizer and a one-way anti-blocking device through connecting pieces.

[0012] As the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, preferably, the driving mechanism includes a hydraulic cylinder, the hydraulic cylinder is arranged in the inner cavity of the mounting sleeve, and the piston rod of the hydraulic cylinder is fixedly connected to the moving block.

[0013] As the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, preferably, the connecting mechanism includes a connecting rod, one end of the connecting rod is rotatably connected to the outer side of the moving block, the other end of the connecting rod is rotatably connected to a moving sleeve, the inner cavity of the moving sleeve is fixedly connected to a moving ring, the inner cavity of the moving ring is provided with a cross bar, and both ends of the cross bar are fixedly connected to the connecting blocks.

[0014] As the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, preferably, the connecting mechanism also includes a ball, the ball is arranged on the outside of the cross bar, the inner ring of the movable ring is provided with a connecting groove, and the outer side of the ball is rollingly connected to the inner wall of the connecting groove.

[0015] As the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, preferably, the outer side of the cross bar is fixedly connected with a guide block, and the inner wall of the movable ring is slidably connected to the outer side of the guide block.

[0016] As the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, preferably, the enhancement mechanism includes a mounting plate, the outer side of the mounting plate is rotatably connected to the inner cavity of the mounting sleeve, an ultrasonic transducer is provided on the top of the mounting plate, and the bottom of the mounting plate is fixedly connected to the top of the connecting block.

[0017] As the utility model provides a gas extraction enhancement device based on ultrasonic mechanical effect, preferably, the connecting part includes a first connection converter and a second connection converter, the first connection converter is arranged between the mounting sleeve and the stabilizer, and the second connection converter is arranged between the mounting sleeve and the one-way anti-blocking device.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This gas extraction enhancement device based on ultrasonic mechanical effects, after the equipment is powered on, the ultrasonic transducer converts electrical energy into mechanical waves. The powerful mechanical effect caused by ultrasonic waves can destroy the coal rock mass, increase or create through cracks, increase the permeability of the coal rock mass, open up overflow channels for coalbed methane, and improve gas extraction efficiency. Compared with hydraulic fracturing, blasting, etc., this device does not use chemical additives, mainly relies on physical effects, can treat the target area in a directional and fixed manner, and has adjustable parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a preferred embodiment of a gas extraction enhancement device based on ultrasonic mechanical effects provided by the present invention;

[0021] Figure 2 This is a structural sectional view of the utility model;

[0022] Figure 3 For the utility model Figure 2 The structure of A in the middle is an enlarged schematic view.

[0023] Figure 4 For the structure side view of the cross rod of the utility model.

[0024] The figure mark: 1, the mounting sleeve; 2, drive mechanism;201, hydraulic cylinder;202, moving block;3, connecting mechanism;301, connecting rod;302, cross rod;303, connecting block;304, moving ring;305, moving sleeve;306, ball;307, connecting groove;4, strengthening mechanism;401, mounting plate;402, ultrasonic transducer;5, connecting piece;501, first connecting converter;502, second connecting converter;6, centralizer;7, one-way anti-blocking device;8, guide block. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings and embodiments.

[0026] Please combine with reference to Figures 1-4 A gas extraction strengthening device based on ultrasonic mechanical effect, including mounting sleeve 1, the inner chamber of mounting sleeve 1 is provided with drive mechanism 2, the top of drive mechanism 2 is provided with connecting mechanism 3, the top of connecting mechanism 3 is provided with strengthening mechanism 4, the outer side of mounting sleeve 1 is connected with centralizer 6 and one-way anti-blocking device 7 respectively through connecting piece 5;

[0027] Connecting piece 5 includes first connecting converter 501 and second connecting converter 502, first connecting converter 501 is arranged between mounting sleeve 1 and centralizer 6, and second connecting converter 502 is arranged between mounting sleeve 1 and one-way anti-blocking device 7.

[0028] As a technical optimization scheme of the utility model, drive mechanism 2 includes hydraulic cylinder 201, hydraulic cylinder 201 is arranged in the inner chamber of mounting sleeve 1, and the piston rod of hydraulic cylinder 201 is fixedly connected with moving block 202.

[0029] In the embodiment, moving block 202 can be driven to move up and down by hydraulic cylinder 201.

[0030] As a technical optimization scheme of the utility model, connecting mechanism 3 includes connecting rod 301, one end of connecting rod 301 is rotatably connected with the outer side of moving block 202, the other end of connecting rod 301 is rotatably connected with moving sleeve 305, the inner chamber of moving sleeve 305 is fixedly connected with moving ring 304, the inner chamber of moving ring 304 is provided with cross rod 302, and both ends of cross rod 302 are fixedly connected with connecting block 303.

[0031] In this embodiment: the hydraulic cylinder 201 drives the moving block 202 to move downward, so that the angle of the connecting rod 301 can be changed, and at the same time the moving sleeve 305 moves outside the cross bar 302 through the moving ring 304, so that the angle of the mounting plate 401 changes, and then the mounting plate 401 is rotated based on the connection pad with the mounting sleeve 1, and is retracted into the mounting sleeve 1 to reduce the footprint. When in use, the hydraulic cylinder 201 drives the moving block 202 to move upward, so that the mounting plate 401 can be moved out of the mounting sleeve 1.

[0032] As a technical optimization solution of the present invention, the connecting mechanism 3 also includes a ball 306, which is arranged on the outside of the cross bar 302. The inner ring of the movable ring 304 is provided with a connecting groove 307, and the outer side of the ball 306 is rollingly connected to the inner wall of the connecting groove 307.

[0033] In this embodiment, by providing the ball bearings 306 and cooperating with the connecting grooves 307 , the movable ring 304 can be easily moved outside the crossbar 302 , thereby reducing the movement resistance of the movable ring 304 .

[0034] As a technical optimization solution of the present invention, the outer side of the cross bar 302 is fixedly connected with a guide block 8 , and the inner wall of the movable ring 304 is slidably connected to the outer side of the guide block 8 .

[0035] In this embodiment, the guide block 8 is provided to limit the moving ring 304 , thereby improving the stability of the moving ring 304 during movement.

[0036] As a technical optimization solution of the present invention, the strengthening mechanism 4 includes a mounting plate 401, the outer side of the mounting plate 401 is rotatably connected to the inner cavity of the mounting sleeve 1, an ultrasonic transducer 402 is provided on the top of the mounting plate 401, and the bottom of the mounting plate 401 is fixedly connected to the top of the connecting block 303.

[0037] In this embodiment: after the equipment is powered on, the ultrasonic transducer 402 converts electrical energy into mechanical waves (ultrasonic waves). The powerful mechanical effect caused by ultrasonic waves can damage the coal rock mass, increase or generate through cracks, increase the permeability of the coal rock mass, open up overflow channels for coalbed methane, and improve gas extraction efficiency.

[0038] The working principle of the gas extraction enhancement device based on ultrasonic mechanical effect provided by the utility model is as follows:

[0039] When using this device, it can be moved into the gas extraction borehole, and then the device can be powered on. After the device is powered on, the ultrasonic transducer 402 converts electrical energy into mechanical waves (ultrasonic waves). The powerful mechanical effect caused by the ultrasonic waves can destroy the coal rock mass, increase or generate through cracks, increase the permeability of the coal rock mass, open up an overflow channel for coalbed methane, and improve the gas extraction efficiency. Compared with hydraulic fracturing, blasting, etc., no chemical additives are used, and it mainly relies on physical effects. It can treat the target area in a direction and at a fixed point, and the parameters are adjustable. After use, the hydraulic cylinder 201 drives the moving block 202 to move downward, which can change the angle of the connecting rod 301. At the same time, the moving sleeve 305 moves outside the cross bar 302 through the moving ring 304, thereby changing the angle of the mounting plate 401, and then the mounting plate 401 is rotated based on the connection pad with the mounting sleeve 1 and retracted into the mounting sleeve 1, reducing the footprint.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gas extraction enhancement device based on ultrasonic mechanical effect, characterized in that: The invention comprises a mounting sleeve (1), wherein the inner cavity of the mounting sleeve (1) is provided with a driving mechanism (2), the top of the driving mechanism (2) is provided with a connecting mechanism (3), the top of the connecting mechanism (3) is provided with a reinforcing mechanism (4), and the outer side of the mounting sleeve (1) is respectively connected to a centralizer (6) and a one-way anti-blocking device (7) through a connecting piece (5).

2. The gas extraction enhancement device based on ultrasonic mechanical effect according to claim 1 is characterized in that: The driving mechanism (2) comprises a hydraulic cylinder (201), the hydraulic cylinder (201) being arranged in the inner cavity of the mounting sleeve (1), and the piston rod of the hydraulic cylinder (201) being fixedly connected to the moving block (202).

3. The gas extraction enhancement device based on ultrasonic mechanical effect according to claim 2 is characterized in that: The connecting mechanism (3) comprises a connecting rod (301), one end of the connecting rod (301) being rotatably connected to the outer side of the moving block (202), the other end of the connecting rod (301) being rotatably connected to a moving sleeve (305), the inner cavity of the moving sleeve (305) being fixedly connected to a moving ring (304), the inner cavity of the moving ring (304) being provided with a crossbar (302), and both ends of the crossbar (302) being fixedly connected to the connecting block (303).

4. The gas extraction enhancement device based on ultrasonic mechanical effect according to claim 3 is characterized in that: The connecting mechanism (3) further comprises a ball (306), wherein the ball (306) is arranged on the outside of the crossbar (302), and the inner ring of the movable ring (304) is provided with a connecting groove (307), and the outer side of the ball (306) is rollingly connected to the inner wall of the connecting groove (307).

5. The gas extraction enhancement device based on ultrasonic mechanical effect according to claim 3 is characterized in that: The outer side of the crossbar (302) is fixedly connected to a guide block (8), and the inner wall of the movable ring (304) is slidably connected to the outer side of the guide block (8).

6. The gas extraction enhancement device based on ultrasonic mechanical effect according to claim 3 is characterized in that: The reinforcing mechanism (4) comprises a mounting plate (401), the outer side of the mounting plate (401) being rotatably connected to the inner cavity of the mounting sleeve (1), an ultrasonic transducer (402) being provided on the top of the mounting plate (401), and the bottom of the mounting plate (401) being fixedly connected to the top of the connecting block (303).

7. The gas extraction enhancement device based on ultrasonic mechanical effect according to claim 1 is characterized in that: The connecting member (5) comprises a first connection converter (501) and a second connection converter (502), wherein the first connection converter (501) is arranged between the mounting sleeve (1) and the centralizer (6), and the second connection converter (502) is arranged between the mounting sleeve (1) and the one-way anti-blocking device (7).

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