Coal seam gas content sampling and measuring integrated device

Abstract

The utility model relates to the technical field of gas sampling and measuring, and discloses a coal seam gas content sampling and measuring integrated device which comprises two installation frames and a desorption instrument, a motor is installed on the top of one installation frame, the output end of the motor is fixedly connected with a threaded rod, and the threaded rod is fixedly connected with the desorption instrument. And the bottom ends of the threaded rods are rotationally connected with the inner sides of the mounting frames, the outer sides of the threaded rods are in threaded connection with threaded blocks, the interior of the other mounting frame is fixedly connected with guide rods, and the outer sides of the guide rods are in sliding connection with sliding blocks. According to the coal sampling device, the motor is started to drive the threaded rod to rotate, so that the sampling head can drill into a coal seam for sampling, a coal sample can jack the cover plate open and enter the lower tank body, when the lower tank body is lifted, the coal sample in the sampling head can fall back, and the cover plate is quickly reset under the rotating force of the torsion spring and covers the channel opening; the coal sample is stored in the lower tank body, so that gas in the coal sample is prevented from leaking into the air.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling and determination equipment, in particular to an integrated device for sampling and determining coal seam gas content. Background Art

[0002] Coal seam gas content sampling refers to collecting coal samples containing gas from the coal seam through specific technologies and equipment. By using a device to penetrate deep into the coal seam to obtain representative coal samples, gas content determination is to analyze and determine the gas volume in the taken coal samples. The determination method is generally the desorption method. Under sealed conditions, the coal samples record the change of the amount of gas desorbed from the coal samples over time, and then through some calculations and analyses, the gas volume contained in the coal samples is determined. Therefore, a gas sampling and determination device is used.

[0003] In the prior art, after drilling the fragmented samples of the coal seam and then placing them inside a sealed tank body, the step of coal sample transfer is required in the middle, which will cause a small amount of gas to escape into the air, resulting in inaccurate subsequent measurement data. Therefore, the technical field of this invention proposes an integrated device for sampling and determining coal seam gas content to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides an integrated device for sampling and determining coal seam gas content, aiming to improve the problem that in the prior art, after drilling the fragmented samples of the coal seam and then placing them inside a sealed tank body, the step of coal sample transfer is required in the middle, which will cause a small amount of gas to escape into the air, resulting in inaccurate subsequent measurement data.

[0005] To achieve the above object, the utility model provides the following technical solution: An integrated device for sampling and determining coal seam gas content, including two mounting frames and a desorber. A motor is installed on the top of one of the mounting frames, the output end of the motor is fixedly connected with a threaded rod, the bottom end of the threaded rod is rotatably connected to the inside of the mounting frame, a threaded block is threadedly connected to the outside of the threaded rod, a guide rod is fixedly connected to the inside of the other mounting frame, a slider is slidably connected to the outside of the guide rod, the adjacent sides of the threaded block and the slider are fixedly connected with a lower tank body, the bottom of the lower tank body is fixedly connected with a sampling head, a channel opening is formed at the top of the sampling head, two fixing blocks are fixedly connected to the inner bottom wall of the lower tank body, a rotating rod is rotatably connected to the inside of the two fixing blocks, a cover plate is fixedly connected to the outside of the rotating rod, a torsion spring is sleeved on the outside of the rotating rod, and a disassembly component is arranged outside the lower tank body, and the disassembly component is used for quickly disassembling the tank body storing the sampled coal blocks.

[0006] Further, the disassembling component includes an upper tank body, the bottom of the upper tank body is arranged on the top of the lower tank body, and a sealing ring is arranged at the connection, and two fixing plates are fixedly connected to the outside of the upper tank body.

[0007] Further, two mounting blocks are fixedly connected to the outside of the lower tank body, a cavity is formed inside the mounting block, and a locking rod is slidably connected to the through hole of the cavity.

[0008] Further, a clamping hole is formed inside the fixing plate, and one end of the locking rod is clamped inside the clamping hole.

[0009] Further, a sliding ring is fixedly connected to the outside of the locking rod, and a spring is sleeved on the outside of the locking rod.

[0010] Further, one end of the spring is fixedly connected to the inner wall of the cavity, and the other end of the spring is fixedly connected to the outside of the sliding ring.

[0011] Further, one end of the torsion spring is fixedly connected to the inner wall of the lower tank body, and the other end of the torsion spring is fixedly connected to the outside of the cover plate.

[0012] Further, a valve is installed on the top of the upper tank body, and the valve is connected to the desorption instrument through a conduit.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, by starting the motor to drive the threaded rod to rotate, the sampling head will drill into the coal seam for sampling. The coal sample will push open the cover plate and enter the inside of the lower tank body. When the lower tank body is lifted, the coal sample inside the sampling head will fall back. The cover plate will quickly reset under the rotational force of the torsion spring and cover the channel opening, so that the coal sample is stored inside the lower tank body, avoiding the leakage of gas in the coal sample into the air, thus completing the sampling.

[0015] 2. In the utility model, by pulling two pull rings, one end of the locking rod is pulled out from the inside of the clamping hole, so that the locking relationship between the mounting block and the fixing plate is released, and then the upper tank body can be removed from the top of the lower tank body, and it is more convenient to clean the inside of the lower tank body and the upper tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of an integrated device for sampling and measuring coal seam gas content proposed by the utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the installation frame of an integrated device for sampling and measuring coal seam gas content proposed by the utility model;

[0018] Figure 3Schematic diagram of the internal structure of the lower tank body of an integrated device for sampling and measuring coal seam gas content proposed by the present utility model;

[0019] Figure 4 For Figure 3 Enlarged view of part A in

[0020] Figure 5 Sectional view of the mounting block of an integrated device for sampling and measuring coal seam gas content proposed by the present utility model;

[0021] Figure 6 Schematic diagram of the upper tank body structure of an integrated device for sampling and measuring coal seam gas content proposed by the present utility model.

[0022] Legend:

[0023] 1. Mounting frame; 2. Motor; 3. Threaded rod; 4. Threaded block; 5. Guide rod; 6. Slide block; 7. Lower tank body; 8. Sampling head; 9. Channel opening; 10. Fixed block; 11. Rotating rod; 12. Cover plate; 13. Torsion spring; 14. Upper tank body; 15. Fixed plate; 16. Card hole; 17. Mounting block; 18. Locking rod; 19. Sliding ring; 20. Spring; 21. Desorption instrument; 22. Valve. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1-3, an embodiment provided by the present utility model: an integrated device for sampling and measuring coal seam gas content, including two mounting frames 1 and a desorption instrument 21. A motor 2 is installed on the top of one of the mounting frames 1. The output end of the motor 2 is fixedly connected to a threaded rod 3. The bottom end of the threaded rod 3 is rotatably connected to the inside of the mounting frame 1. A threaded block 4 is threadedly connected to the outside of the threaded rod 3. A guide rod 5 is fixedly connected to the inside of the other mounting frame 1. A slider 6 is slidably connected to the outside of the guide rod 5. The adjacent sides of the threaded block 4 and the slider 6 are fixedly connected to a lower tank body 7. The bottom of the lower tank body 7 is fixedly connected to a sampling head 8. A channel opening 9 is opened at the top of the sampling head 8. Two fixing blocks 10 are fixedly connected to the inner bottom wall of the lower tank body 7. A rotating rod 11 is rotatably connected to the inside of the two fixing blocks 10. A cover plate 12 is fixedly connected to the outside of the rotating rod 11. A torsion spring 13 is sleeved on the outside of the rotating rod 11. A disassembly component is arranged outside the lower tank body 7. The disassembly component is used to quickly disassemble the tank body storing the sampled coal blocks. Start the motor 2 to drive the threaded rod 3 to rotate. Then the threaded block 4 drives the lower tank body 7 to move downward, and the sampling head 8 will drill into the coal seam. The coal sample will move from the channel opening 9 inside the sampling head 8 into the lower tank body 7, and will also push open the cover plate 12 and then enter the lower tank body 7. When the lower tank body 7 is lifted, the coal sample inside the sampling head 8 will fall back. The cover plate 12 quickly resets under the rotational force of the torsion spring 13 and covers the channel opening 9, so that the coal sample is stored inside the lower tank body 7, preventing the gas in the coal sample from leaking into the air. Then, after opening the valve 22, the gas in the coal sample is measured by the desorption instrument 21.

[0026] Refer to Figures 4-6 , the disassembly component includes an upper tank body 14. The bottom of the upper tank body 14 is arranged on the top of the lower tank body 7, and a sealing ring is arranged at the connection. Two fixing plates 15 are fixedly connected to the outside of the upper tank body 14. Two mounting blocks 17 are fixedly connected to the outside of the lower tank body 7. A cavity is opened inside the mounting block 17, and a locking rod 18 is slidably connected to the through hole of the cavity. A card hole 16 is opened inside the fixing plate 15. One end of the locking rod 18 is clamped inside the card hole 16. A sliding ring 19 is fixedly connected to the outside of the locking rod 18. A spring 20 is sleeved on the outside of the locking rod 18. One end of the spring 20 is fixedly connected to the inner wall of the cavity, and the other end of the spring 20 is fixedly connected to the outside of the sliding ring 19. One end of the locking rod 18 is fixedly connected to a pull ring. The two pull rings can be pulled to pull one end of the locking rod 18 out of the card hole 16, so that the locking relationship between the mounting block 17 and the fixing plate 15 is released. Then the upper tank body 14 can be removed from the top of the lower tank body 7, and it is more convenient to clean the inside of the lower tank body 7 and the upper tank body 14.

[0027] Refer to Figures 1-3, one end of the torsion spring 13 is fixedly connected to the inner wall of the lower tank body 7, and the other end of the torsion spring 13 is fixedly connected to the outer side of the cover plate 12. A valve 22 is installed at the top of the upper tank body 14, and the valve 22 is connected to the desorber 21 through a conduit. The rotational force of the torsion spring 13 can cause the cover plate 12 to quickly reset and block the channel opening 9. The valve 22 and the desorber 21 are used to measure the gas content by the desorption method.

[0028] Working principle: After the device is transported to the sampling site, start the motor 2 to drive the threaded rod 3 to rotate, so that the threaded block 4 drives the lower tank body 7 to move downward. Then the sampling head 8 will drill into the coal seam, and the coal sample will move from the channel opening 9 inside the sampling head 8 into the inside of the lower tank body 7, and will push open the cover plate 12. The coal sample will enter the inside of the lower tank body 7. When the lower tank body 7 moves back, the coal sample inside the sampling head 8 will fall back, and the cover plate 12 will cover the channel opening 9 under the rotational force of the torsion spring 13, so that the coal sample is stored inside the lower tank body 7. Then, after opening the valve 22, the gas in the coal sample is measured by the desorber 21. In addition, when it is necessary to clean the inside of the lower tank body 7 and the upper tank body 14, two pull rings can be pulled to pull out one end of the lock rod 18 from the inside of the card hole 16, releasing the fixing relationship between the mounting block 17 and the fixing plate 15, and the upper tank body 14 can be removed from the top of the lower tank body 7. In this way, it is more convenient to clean the inside of the lower tank body 7 and the upper tank body 14.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated device for sampling and measuring coal seam gas content, comprising two installation frames (1) and a desorber (21), characterized in that: A motor (2) is installed on the top of one of the installation frames (1), the output end of the motor (2) is fixedly connected to a threaded rod (3), the bottom end of the threaded rod (3) is rotatably connected to the inner side of the installation frame (1), the outer side of the threaded rod (3) is threadedly connected to a threaded block (4), the interior of the other installation frame (1) is fixedly connected to a guide rod (5), the outer side of the guide rod (5) is slidably connected to a slider (6), the adjacent sides of the threaded block (4) and the slider (6) are fixedly connected to a lower tank body (7), and the lower tank body ( The bottom of the lower tank body (7) is fixedly connected with a sampling head (8), the top of the sampling head (8) is provided with a passage opening (9), the inner bottom wall of the lower tank body (7) is fixedly connected with two fixed blocks (10), the interior of the two fixed blocks (10) is rotatably connected with a rotating rod (11), the exterior of the rotating rod (11) is fixedly connected with a cover plate (12), the exterior of the rotating rod (11) is sleeved with a torsion spring (13), and the exterior of the lower tank body (7) is provided with a disassembly assembly, and the disassembly assembly is used to quickly disassemble the tank body storing the sampled coal blocks.

2. The integrated device for sampling and measuring coal seam gas content according to claim 1 is characterized in that: The disassembly assembly comprises an upper tank body (14), the bottom of which is arranged on the top of the lower tank body (7), and a sealing ring is arranged at the connection, and two fixing plates (15) are fixedly connected to the outer side of the upper tank body (14).

3. The integrated device for sampling and measuring coal seam gas content according to claim 2 is characterized in that: Two mounting blocks (17) are fixedly connected to the outer side of the lower tank body (7), a cavity is provided inside the mounting block (17), and a locking rod (18) is slidably connected to a through hole of the cavity.

4. The integrated device for sampling and measuring coal seam gas content according to claim 3 is characterized in that: A locking hole (16) is provided inside the fixing plate (15), and one end of the locking rod (18) is locked inside the locking hole (16).

5. The integrated device for sampling and measuring coal seam gas content according to claim 4 is characterized in that: A sliding ring (19) is fixedly connected to the outer side of the locking rod (18), and a spring (20) is sleeved on the outer side of the locking rod (18).

6. The integrated device for sampling and measuring coal seam gas content according to claim 5, characterized in that: One end of the spring (20) is fixedly connected to the inner wall of the cavity, and the other end of the spring (20) is fixedly connected to the outer side of the sliding ring (19).

7. The integrated device for sampling and measuring coal seam gas content according to claim 1, characterized in that: One end of the torsion spring (13) is fixedly connected to the inner wall of the lower tank body (7), and the other end of the torsion spring (13) is fixedly connected to the outer side of the cover plate (12).

8. The integrated device for sampling and measuring coal seam gas content according to claim 2, characterized in that: A valve (22) is installed on the top of the upper tank body (14), and the valve (22) is connected to the desorber (21) via a conduit.

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