Gas extraction hole sealing device

Abstract

The utility model relates to a gas extraction hole sealing device in the technical field of gas extraction. Comprising an extraction pipe, the end of the extraction pipe is in threaded connection with a deep nozzle, the other end of the extraction pipe is fixedly connected with a fixing seat, a pull rod is in sliding fit with the middle of the fixing seat, the end of the pull rod is fixedly connected with a pull plate, the end of the pull plate is fixedly connected with fixing rods, and the fixing rods are evenly distributed on the side wall of the pull plate. An extraction ring is fixedly connected to the end of the fixing rod, a first filter screen is arranged in the middle of the extraction ring, the extraction area where the extraction pipe works can be fixed through the arrangement of the fixing assembly, gas leakage caused by displacement when the extraction pipe works is avoided, the position of a pulling plate can be adjusted through the arrangement of a pull rod, and therefore the extraction pipe is convenient to use. According to the gas extraction hole sealing device, the first filter screen can filter the extracted gas, the storage assembly can store the sampled gas, and the extraction stabilizing effect of the gas extraction hole sealing device is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of gas extraction technology, and in particular to a gas extraction sealing device. Background Technology

[0002] Methane gas is a gaseous mixture mainly composed of methane, which is widely present in strata, especially in oxygen-deficient environments such as coal mines, swamps, and soils rich in organic matter. The composition of methane gas is complex, and in addition to methane, it may also contain small amounts of carbon dioxide, ammonia, hydrogen sulfide, etc.

[0003] Gas extraction refers to drilling into coal seams and gas accumulation areas, connecting the boreholes to dedicated pipelines, and using extraction equipment to extract gas from the coal seams and goaf to the surface for utilization or discharge into the main return airflow. This process can not only reduce the amount of gas emitted during mining, prevent gas exceeding limits and accumulation, and prevent gas explosions and coal and gas outburst accidents, but also allow gas to be developed and utilized as a resource associated with coal.

[0004] Existing gas extraction sealing devices have weak fixation to the sidewalls of the extraction area during use, making the device prone to displacement. This allows debris to enter the device and contaminate the extracted gas, affecting the device's gas extraction and fixation effect.

[0005] Therefore, we propose a gas extraction sealing device. Utility Model Content

[0006] The technical solution of this utility model is:

[0007] The system includes an extraction tube with a screw-connected insertion nozzle at one end and a sealing assembly fixedly attached to the other end. This sealing assembly is an annular sealing gasket to accommodate boreholes of different diameters. The sealing gasket is fixed to the extraction tube to ensure no displacement during extraction. To enhance sealing performance, an elastic element is added between the sealing gasket and the extraction tube to maintain continuous contact between the sealing gasket and the borehole wall. A fixing seat is fixedly attached to the other end of the extraction tube, with a pull rod slidably fitted in the middle of the fixing seat. A pulling plate is fixedly attached to the end of the pull rod, and a fixing rod is fixedly attached to the end of the pulling plate. The fixing rods are evenly distributed on the sidewall of the pulling plate, and an extraction ring is fixedly attached to the end of the fixing rod. A first filter screen is provided in the middle of the extraction ring. A fixing assembly is fixedly attached to the outer wall of the extraction tube, and a storage assembly is provided on the sidewall of the extraction tube.

[0008] The fixed components can be used to fix the extraction area of ​​the extraction pipe, preventing gas leakage due to displacement of the extraction pipe during operation. The pull rod can be used to adjust the position of the pull plate, thereby extracting gas. The extracted gas can be filtered through the first filter screen, and the sampled gas can be stored through the storage component, which enhances the extraction stability of the gas extraction sealing device.

[0009] In a further technical solution, the fixing component includes a fixing frame, a sliding groove is provided on the side wall of the fixing frame, a sliding plate is slidably fitted on the inner side wall of the sliding groove, a telescopic rod is fixedly connected to the side wall of the sliding plate, a fixing ring is fixedly connected to the side wall of the telescopic rod, a fixing nail is screwed to the middle of the fixing ring, and a limiting component is provided on the side wall of the sliding plate.

[0010] The fixed position of the fixing nail can be controlled by the setting of the chute and the sliding plate, the position of the fixing nail can be adjusted by the setting of the telescopic rod, and the position of the sliding plate inside the chute can be limited and fixed by the setting of the limiting component, so that the fixing of the fixing nail is more stable and further enhances the fixing effect of the gas extraction sealing device.

[0011] In a further technical solution, the limiting component includes limiting holes, which are evenly distributed on the sidewalls of the sliding groove and the sliding plate, and a limiting bolt is slidably engaged in the middle of the limiting holes.

[0012] The position of the sliding plate can be limited and fixed by setting limit holes and limit bolts, which further enhances the limiting and stabilizing effect of the gas extraction sealing device.

[0013] In a further technical solution, the storage component includes a storage compartment, the side wall of which is connected to a discharge pipe, and a sealing cap is screwed to the side wall of the discharge pipe.

[0014] The storage chamber allows for the storage of gas extracted by the extraction ring pulled by the lever. The discharge pipe allows for connection with other detection equipment. The sealing cover can seal the storage chamber and discharge pipe when no connection equipment is available, reducing gas leakage and further enhancing the storage and sealing effect of the gas extraction sealing device.

[0015] In a further technical solution, a sealing plate is fixedly connected to the side wall of the pull rod, and the sealing plate is only between the fixed seat and the pull plate.

[0016] By setting a sealing plate, negative pressure can be used to extract gas when the lever is pulled, making gas extraction more convenient and further enhancing the gas extraction sealing device's extraction convenience effect.

[0017] In a further technical solution, a second filter screen is installed on the inner wall of the storage compartment, and the second filter screen is disposed between the extraction pipe and the discharge pipe.

[0018] The second filter screen allows for secondary filtration of the gas entering the storage chamber, further enhancing the storage and filtration effect of the gas extraction sealing device.

[0019] In a further technical solution, a mating sealing gasket is fixed to the inner side wall of the discharge pipe.

[0020] By setting a sealing gasket, the gasket can be sealed to the inside of the pipe of the docking equipment, further enhancing the sealing effect of the gas extraction sealing device.

[0021] The beneficial effects of this utility model are:

[0022] 1. The fixing components secure the extraction area of ​​the extraction pipe, preventing gas leakage due to pipe displacement during operation. The pull rod allows adjustment of the pull plate position for gas extraction. The first filter screen filters the extracted gas, and the storage component stores the sampled gas, enhancing the extraction stability of the gas extraction sealing device.

[0023] 2. The fixed position of the fixing nail can be controlled by the setting of the chute and the sliding plate, the position of the fixing nail can be adjusted by the setting of the telescopic rod, and the position of the sliding plate inside the chute can be limited and fixed by the setting of the limiting component, so that the fixing of the fixing nail is more stable and further enhances the fixing effect of the gas extraction sealing device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the gas extraction system according to an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the fixed rod structure for gas extraction according to an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the limiting hole structure for gas extraction according to an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the sealing gasket structure for gas extraction according to an embodiment of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Extraction tube; 11. Inlet nozzle; 12. Fixing seat; 13. Pull rod; 14. Pulling plate; 15. Fixing rod; 16. Extraction ring; 17. First filter screen; 2. Fixing frame; 21. Slide groove; 22. Sliding plate; 23. Telescopic rod; 24. Fixing ring; 25. Fixing nail; 3. Limiting hole; 31. Limiting bolt; 4. Storage bin; 41. Discharge pipe; 42. Sealing cover; 5. Sealing plate; 6. Second filter screen; 7. Connecting sealing gasket. Detailed Implementation

[0030] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0031] Example:

[0032] like Figures 1-4 As shown, the device includes an extraction tube 1, with a screw-connected insertion nozzle 11 at one end. A fixed base 12 is fixed to the other end of the extraction tube 1. A pull rod 13 is slidably fitted in the middle of the fixed base 12. A pulling plate 14 is fixed to the end of the pull rod 13, and a fixing rod 15 is fixed to the end of the pulling plate 14. The fixing rods 15 are evenly distributed on the sidewall of the pulling plate 14. An extraction ring 16 is fixed to the end of the fixing rod 15, and a first filter screen 17 is provided in the middle of the extraction ring 16. A fixing assembly is fixed to the outer wall of the extraction tube 1, and a storage assembly is provided on the sidewall of the extraction tube 1. During operation, the fixing assembly can stabilize the extraction area of ​​the extraction tube 1, reducing displacement of the extraction tube 1 during extraction. The insertion nozzle 11 can be used to... The gas extraction process is carried out in depth. The pull rod 13 can pull the pull plate 14 to extract the gas. The extracted gas can be filtered through the first filter screen 17 to reduce the impurity content in the sample. The extracted gas can be stored through the storage component. The extraction area of ​​the extraction pipe 1 can be fixed by the setting of the fixing component to prevent gas leakage due to displacement of the extraction pipe 1 during operation. The position of the pull plate 14 can be adjusted by the pull rod 13 to extract the gas. The extracted gas can be filtered through the first filter screen 17. The gas can be stored through the storage component, which enhances the extraction stability of the gas extraction sealing device.

[0033] The fixing assembly includes a fixing frame 2, with a sliding groove 21 on the side wall of the fixing frame 2. A sliding plate 22 is slidably fitted on the inner side wall of the sliding groove 21. A telescopic rod 23 is fixedly connected to the side wall of the sliding plate 22, and a fixing ring 24 is fixedly connected to the side wall of the telescopic rod 23. A fixing nail 25 is screwed to the middle of the fixing ring 24. A limiting component is provided on the side wall of the sliding plate 22. During operation, the fixing position of the fixing nail 25 can be adjusted by the sliding plate 22 slidably fitted in the middle of the sliding groove 21, the lateral position of the fixing nail 25 can be adjusted by the telescopic rod 23, and the position of the sliding plate 22 can be limited and fixed by the limiting component. The fixing position of the fixing nail 25 can be controlled by the setting of the sliding groove 21 and the sliding plate 22, the position of the fixing nail 25 can be adjusted by the setting of the telescopic rod 23, and the position of the sliding plate 22 inside the sliding groove 21 can be limited and fixed by the setting of the limiting component, making the fixing of the fixing nail 25 more stable and further enhancing the fixing effect of the gas extraction sealing device.

[0034] The limiting component includes limiting holes 3, which are evenly distributed on the side walls of the sliding groove 21 and the sliding plate 22. A limiting bolt 31 is slidably engaged in the middle of the limiting hole 3. During operation, the sliding engagement of the limiting hole 3 and the limiting bolt 31 can limit and fix the sliding plate 22 after it has been adjusted to a certain position, thereby limiting and stabilizing the fixing of the fixing nail 25. The setting of the limiting hole 3 and the limiting bolt 31 can limit and fix the position of the sliding plate 22, further enhancing the limiting and stabilizing effect of the gas extraction sealing device.

[0035] The storage assembly includes a storage chamber 4, with a discharge pipe 41 connected to the side wall of the storage chamber 4. A sealing cover 42 is screwed to the side wall of the discharge pipe 41. During operation, the storage chamber 4 can store the gas extracted by pulling the lever 13. The discharge pipe 41 can be connected to the detection equipment. The sealing cover 42 can seal the discharge pipe 41 to prevent leakage during storage. The storage chamber 4 can store the gas extracted by pulling the extraction ring 16 by pulling the lever 13. The discharge pipe 41 can be connected to other detection equipment. The sealing cover 42 can seal the storage chamber 4 and the discharge pipe 41 when no connecting equipment is available, reducing gas leakage and further enhancing the storage and sealing effect of the gas extraction sealing device.

[0036] A sealing plate 5 is fixedly connected to the side wall of the pull rod 13. The sealing plate 5 is only between the fixed seat 12 and the pull plate 14. During operation, the sealing plate 5 can be used to seal the gas when the pull rod 13 is pulled, and the gas is extracted by using negative pressure. The setting of the sealing plate 5 can make the gas extraction more convenient when the pull rod 13 is pulled, and further enhance the gas extraction convenience effect of the gas extraction sealing device.

[0037] A second filter screen 6 is installed on the inner wall of the storage chamber 4. The second filter screen 6 is located between the extraction pipe 1 and the discharge pipe 41. During operation, the gas collected in the storage chamber 4 can be filtered a second time through the second filter screen 6 to avoid impurities during gas extraction. The second filter screen 6 can also filter the gas that is about to enter the storage chamber 4, further enhancing the storage and filtration effect of the gas extraction sealing device.

[0038] A mating sealing gasket 7 is fixed to the inner wall of the discharge pipe 41. During operation, the mating sealing gasket 7 can seal the inside of the equipment pipe connected to the discharge pipe 41 to prevent gas leakage. The mating sealing gasket 7 can also seal the inside of the pipe of the connected equipment, further enhancing the sealing effect of the gas extraction sealing device.

[0039] The working principle of the above technical solution is as follows:

[0040] During operation, the extraction pipe 1 can be fixed and stabilized in the extraction area by the fixing component, reducing displacement of the extraction pipe 1 during extraction. The gas extraction can be deepened by the inlet nozzle 11. The gas extraction can be carried out by pulling the pull plate 14 by the pull rod 13. The extracted gas can be filtered by the first filter screen 17 to reduce the impurity content in the sample. The extracted gas can be stored by the storage component. The fixed position of the fixing nail 25 can be adjusted by the sliding plate 22 that slides in the middle of the chute 21. The lateral position of the fixing nail 25 can be adjusted by the telescopic rod 23. The position of the sliding plate 22 can be limited and fixed by the limiting component. The limiting hole 3 and the limiting bolt 3 can be used to limit and fix the position of the sliding plate 22. The sliding fit of 1 can limit and fix the adjusted sliding plate 22, thereby limiting and stabilizing the fixing nail 25. The gas extracted by the pull rod 13 can be stored through the storage bin 4. The detection equipment can be connected through the discharge pipe 41. The discharge pipe 41 can be sealed through the sealing cover 42 to prevent leakage during storage. The sealing plate 5 can be sealed when the pull rod 13 is pulled. Gas is extracted by negative pressure. The gas collected in the storage bin 4 can be filtered twice through the second filter screen 6 to avoid impurities during gas extraction. The connecting sealing gasket 7 can seal the inside of the equipment pipe connected to the discharge pipe 41 to prevent gas leakage.

[0041] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A gas extraction sealing device, comprising an extraction pipe (1), characterized in that: The extraction tube (1) is screwed to the end of the end of the extraction tube (1) and fixed to the other end of the extraction tube (1) is fixed to the fixed seat (12). The fixed seat (12) is slidably fitted with a pull rod (13) in the middle. The pull rod (13) is fixed to the end of the pull plate (14) and fixed to the end of the pull plate (14). The fixed rod (15) is evenly distributed on the side wall of the pull plate (14). The fixed rod (15) is fixed to the end of the fixed rod (15) and an extraction ring (16) is fixed to the end of the extraction ring (16). The extraction ring (16) is provided with a first filter screen (17) in the middle. The outer side wall of the extraction tube (1) is fixed to a fixing component and a storage component is provided on the side wall of the extraction tube (1).

2. The gas extraction sealing device according to claim 1, characterized in that: The fixing component includes a fixing frame (2), the fixing frame (2) has a sliding groove (21) on its side wall, a sliding plate (22) is slidably fitted on the inner side wall of the sliding groove (21), a telescopic rod (23) is fixedly connected to the side wall of the sliding plate (22), a fixing ring (24) is fixedly connected to the side wall of the telescopic rod (23), a fixing nail (25) is screwed to the middle of the fixing ring (24), and a limiting component is provided on the side wall of the sliding plate (22).

3. A gas extraction sealing device according to claim 2, characterized in that: The limiting component includes a limiting hole (3), which is evenly distributed on the sidewalls of the slide groove (21) and the sliding plate (22). A limiting bolt (31) slides in the middle of the limiting hole (3).

4. A gas extraction sealing device according to claim 1, characterized in that: The storage component includes a storage compartment (4), the side wall of which is connected to a discharge pipe (41), and a sealing cap (42) is screwed to the side wall of the discharge pipe (41).

5. A gas extraction sealing device according to claim 1, characterized in that: A sealing plate (5) is fixed to the side wall of the pull rod (13), and the sealing plate (5) is only between the fixed seat (12) and the pull plate (14).

6. A gas extraction sealing device according to claim 4, characterized in that: The inner wall of the storage compartment (4) is equipped with a second filter screen (6), which is located between the extraction pipe (1) and the discharge pipe (41).

7. A gas extraction sealing device according to claim 4, characterized in that: The inner wall of the discharge pipe (41) is fixed with a butt sealing gasket (7).

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