Anti-blocking filter device for sampling tube for gas detection

Abstract

The utility model discloses a kind of anti-blocking filter devices of sampling pipe for gas detection, including extraction pipe, the rear end of the extraction pipe is fixedly connected with processing pipe, the rear end of the processing pipe is fixedly connected with sampling outer tube, the surface of the extraction pipe is equipped with first rough filter screen, the inside front end of the processing pipe is fixedly connected with second filter screen, the inside of the processing pipe and the rear end of second filter screen are equipped with mounting groove, the inside of the mounting groove is rotatably connected with rotating disc, the inside of the processing pipe and the rear end of rotating disc are fixedly connected with sampling head, the front end of the rotating disc is fixedly connected with front cleaning brush, the rear end of the rotating disc is fixedly connected with rear cleaning brush, the top rear end of the rotating disc is fixedly connected with adjusting slide rod. The device is installed with the anti-blocking structure that can clean the interface of filter screen, cooperate multi-stage filter structure to reduce the situation of device blockage.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, specifically to an anti-clogging filter device for a gas detection sampling tube. Background Technology

[0002] In coal mine gas drainage, borehole sealing is a crucial step in ensuring mine safety and effective gas extraction. Gas drainage borehole sealing quality monitoring devices play a vital role in this process, used to monitor and evaluate the quality of the sealing. However, a serious problem often encountered in coal mine working environments is coal dust blockage. Coal dust blockage refers to the phenomenon where coal dust or other particulate matter enters the detection tube or channel of the sealing quality monitoring device during the sealing process, causing blockage or hindering data acquisition and gas flow.

[0003] For example, patent CN220955561U discloses a gas extraction borehole sealing quality detection device to prevent coal dust blockage. The device includes a main unit, a connecting pipe, a probe tube, a filter screen, and an explosion-proof vibration motor. The sampling interface of the main unit is connected to one end of the probe tube via the connecting pipe. The other end of the probe tube extends through the sealing section into the extraction pipe. The filter screen is installed at the other end of the probe tube and has the same shape as the probe tube. The filter screen is made of metal mesh and is used to prevent coal dust particles larger than the pore size of the metal mesh from entering the probe tube during sampling. The probe tube is a rigid tube, and the explosion-proof vibration motor is installed at one end of the probe tube and rigidly connected to it. It drives the probe tube to vibrate, dispersing the coal dust accumulated inside and preventing it from clogging the probe tube. This invention uses a combination of filtration and vibration to prevent coal dust from clogging the probe tube and is easy to implement, thereby ensuring the accuracy and continuity of monitoring and evaluating the sealing quality.

[0004] However, the gas extraction borehole sealing quality detection device proposed in this application lacks an anti-clogging structure that can clean the interface and filter screen, which may lead to clogging over time. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging filter device for a gas detection sampling tube, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an anti-clogging filter device for a gas detection sampling tube, wherein a processing tube is fixedly connected to the rear end of the sampling tube, a sampling outer tube is fixedly connected to the rear end of the processing tube, a first coarse filter screen is provided on the surface of the sampling tube, a second filter screen is fixedly connected to the front end of the processing tube, an installation groove is provided inside the processing tube and at the rear end of the second filter screen, a rotating disk is rotatably connected inside the installation groove, a sampling head is fixedly connected inside the processing tube and at the rear end of the rotating disk, a front cleaning brush is fixedly connected to the front end of the rotating disk, a rear cleaning brush is fixedly connected to the rear end of the rotating disk, an adjusting slide rod is fixedly connected to the rear end of the top of the rotating disk, an arc-shaped groove is provided inside the processing tube, and an adjusting slide rod is slidably connected inside the arc-shaped groove.

[0007] According to the above technical solution, a front sealing ring is fixedly installed inside the mounting groove and at the front end of the rotating disk, and a rear sealing ring is fixedly installed inside the mounting groove and at the rear end of the rotating disk.

[0008] According to the above technical solution, a vent hole is provided inside the rotating disk and at one end near the second filter screen.

[0009] According to the above technical solution, an arc-shaped protective plate is fixedly connected to the rear end of the processing tube, and an adjusting slide rod is slidably connected inside the arc-shaped protective plate.

[0010] According to the above technical solution, a motor base is fixedly connected to the rear end of the sampling outer tube, a control motor is fixedly installed on the surface of the motor base, a rotating plate is fixedly connected to the top of the control motor, and an adjusting slide rod is fixedly connected to the front end of the top of the rotating plate.

[0011] According to the above technical solution, a sampling tube is installed at the rear end of the sampling outer tube.

[0012] According to the above technical solution, a connecting pipe is fixedly connected to the rear end of the sampling outer tube.

[0013] According to the above technical solution, a coal seam is provided at the front end of the extraction pipe.

[0014] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: The front end of the extraction pipe is used to insert into the interior of the coal seam for convenient gas collection. The gas extracted by the sampling head can be transported through the sampling outer pipe. When it is necessary to test the collected gas, it can be detected by connecting an external gas detection device through the sampling pipe. The connecting pipe is used to connect an external air pump and gas collection device, facilitating the extraction and storage of methane gas. The motor base is used to support the control motor, facilitating the installation of the control motor at the rear end of the sampling outer pipe. The axis of the control motor and the center of the rotating disk are at the same horizontal position. When the control motor is started, the rotating plate can be rotated through the motor shaft, which in turn drives the adjusting slide rod to slide, allowing the rotating disk inside the processing pipe to rotate. The front and rear ends of the rotating disk are equipped with front and rear sealing rings, which can seal the mounting groove to prevent gas from entering the interior of the mounting groove, allowing the gas to be smoothly extracted by the sampling head.

[0015] A first coarse filter screen on the surface of the extraction tube performs coarse filtration, filtering out larger particles on its outer side to prevent them from entering the extraction tube. A smaller second filter screen installed at the front end of the processing tube performs fine filtration, preventing fine particles from entering the sampling head. The sampling head collects gas, and a rotatable disc is installed between the second filter screen and the sampling head. The disc is located inside the mounting groove. When the disc rotates, the front cleaning brush at the front end of the disc cleans the second filter screen, preventing clogging and ensuring gas intake. The rear cleaning brush at the rear end of the disc cleans the sampling head, maintaining the cleanliness of the sampling head's air inlet. An adjusting slide rod is located at the upper rear of the disc, away from the axis. Sliding the adjusting slide rod rotates the disc, thus cleaning the interior of the processing tube. This device is equipped with an anti-clogging structure for cleaning the filter screen interfaces, which, combined with the multi-stage filtration structure, reduces the likelihood of clogging. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a gas detection sampling tube anti-clogging device according to this utility model;

[0018] Figure 2 This is a schematic diagram of the adjusting slide rod and some of its adjacent structures of this utility model;

[0019] Figure 3 This is a schematic diagram of the planar structure of the sampling tube anti-clogging device of this utility model;

[0020] Figure 4 This is a utility model Figure 3 The enlarged view of point A in the diagram shows the structural structure.

[0021] The markings in the diagram are: 1. Extraction pipe; 2. Processing pipe; 3. Sampling outer pipe; 4. First coarse filter screen; 5. Arc-shaped chute; 6. Adjusting slide bar; 7. Coal seam; 8. Inspection pipe; 9. Connecting pipe; 10. Arc-shaped protective plate; 11. Rotating plate; 12. Control motor; 13. Motor base; 14. Sampling head; 15. Second filter screen; 16. Installation groove; 17. Front sealing ring; 18. Rear sealing ring; 19. Rotating disk; 20. Ventilation hole; 21. Front cleaning brush; 22. Rear cleaning brush. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4A gas detection sampling tube anti-clogging filtration device includes an extraction tube 1, a processing tube 2 fixedly connected to the rear end of the extraction tube 1, and a sampling outer tube 3 fixedly connected to the rear end of the processing tube 2. A first coarse filter screen 4 is provided on the surface of the extraction tube 1. A second filter screen 15 is fixedly connected to the front end of the processing tube 2. An installation groove 16 is provided inside the processing tube 2 at the rear end of the second filter screen 15. A rotating disk 19 is rotatably connected inside the installation groove 16. A sampling head 14 is fixedly connected inside the processing tube 2 at the rear end of the rotating disk 19. A front cleaning brush 21 is fixedly connected to the front end of the rotating disk 19, and a rear cleaning brush 22 is fixedly connected to the rear end of the rotating disk 19. An adjusting slide rod 6 is fixedly connected to the rear end of the top of the rotating disk 19. An arc-shaped groove 5 is provided inside the processing tube 2, and the adjusting slide rod 6 is slidably connected inside the arc-shaped groove 5. The extraction tube 1 is inserted into a coal seam. The processing tube 2 is equipped with a layered filtration device and a cleaning device, allowing gas to pass through the processing tube 2 and enter the sampling outer tube 3 after two filtrations. A first coarse filter 4 is formed on the surface of the extraction tube 1 for coarse filtration, filtering out larger particles on the outside of the first coarse filter 4 to prevent them from entering the interior of the extraction tube 1. A second filter 15, smaller in size, is installed at the front end of the interior of the processing tube 2 for fine filtration, preventing fine particles from entering the interior of the sampling head 14. The sampling head 14 is used to collect gas, and a rotatable rotating disk 19 is installed between the second filter 15 and the sampling head 14. The rotating disk 19 is located inside the mounting groove 16. When the rotating disk 19 rotates, the front cleaning brush 21 at the front end of the rotating disk 19 can clean the second filter 15 to prevent blockage and thus affect the gas intake. The rear cleaning brush 22 at the rear end of the rotating disk 19 can clean the sampling head 14 to maintain the cleanliness of the air inlet of the sampling head 14. An adjusting slide rod 6 is located at the upper rear side of the rotating disk 19, away from the axis. When the adjusting slide rod 6 is held and slid, it can drive the rotating disk 19 to rotate, thereby cleaning the interior of the processing tube 2.

[0024] Please see Figure 1-4 A front sealing ring 17 is fixedly installed inside the mounting groove 16 at the front end of the rotating disk 19, and a rear sealing ring 18 is fixedly installed inside the mounting groove 16 at the rear end of the rotating disk 19. The front sealing ring 17 and the rear sealing ring 18 installed at the front and rear ends of the rotating disk 19 can seal the mounting groove 16, preventing gas from entering the interior of the mounting groove 16 and allowing the gas to be smoothly extracted by the sampling head 14.

[0025] Please see Figure 1-4 A vent hole 20 is provided inside the rotating disk 19 and at one end near the second filter screen 15. After the gas passes through the first coarse filter screen 4 and enters the inside of the extraction tube 1, it can pass through the second filter screen 15 and the vent hole 20 and be extracted by the sampling head 14.

[0026] Please see Figure 1-3 An arc-shaped protective plate 10 is fixedly connected to the rear end of the processing tube 2, and an adjusting slide rod 6 is slidably connected inside the arc-shaped protective plate 10. The arc-shaped protective plate 10 is used to protect the adjusting slide rod 6, which can rotate within an arc-shaped groove opened inside the arc-shaped protective plate 10.

[0027] Please see Figure 1-3 A motor base 13 is fixedly connected to the rear end of the sampling outer tube 3. A control motor 12 is fixedly mounted on the surface of the motor base 13. A rotating plate 11 is fixedly connected to the top of the control motor 12. An adjusting slide rod 6 is fixedly connected to the front end of the top of the rotating plate 11. The motor base 13 supports the control motor 12, facilitating its installation at the rear end of the sampling outer tube 3. The axis of the control motor 12 and the center of the rotating disk 19 are at the same horizontal position. When the control motor 12 is started, the rotating plate 11 can be rotated through the motor shaft, which in turn drives the adjusting slide rod 6 to slide, causing the rotating disk 19 inside the processing tube 2 to rotate.

[0028] Please see Figure 1-3 A sampling tube 8 is installed at the rear end of the sampling tube 3. The gas extracted by the sampling head 14 can be transported through the sampling tube 3. When it is necessary to test the collected gas, it can be tested by connecting an external gas detection device through the sampling tube 8.

[0029] Please see Figure 1-3 The rear end of the sampling outer tube 3 is fixedly connected to a connecting tube 9. The connecting tube 9 is used to connect an external air pump and a gas collection device, facilitating the extraction and storage of methane gas.

[0030] Please see Figure 1-3 The extraction pipe 1 has a coal seam 7 at its front end. The front end of the extraction pipe 1 is used to connect into the interior of the coal seam 7 for easy collection of gas.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas detection sampling tube anti-blocking filter device comprising a suction tube (1), characterized in that: The sampling tube (1) is fixedly connected to the rear end of the processing tube (2), and the processing tube (2) is fixedly connected to the rear end of the sampling tube (3). A first coarse filter screen (4) is provided on the surface of the sampling tube (1). A second filter screen (15) is fixedly connected to the front end of the processing tube (2). An installation groove (16) is provided inside the processing tube (2) and at the rear end of the second filter screen (15). A rotating disk (19) is rotatably connected inside the installation groove (16). A sampling head (14) is fixedly connected inside the processing tube (2) and at the rear end of the rotating disk (19). A front cleaning brush (21) is fixedly connected to the front end of the rotating disk (19). A rear cleaning brush (22) is fixedly connected to the rear end of the rotating disk (19). An adjusting slide rod (6) is fixedly connected to the rear end of the top of the rotating disk (19). An arc-shaped sliding groove (5) is provided inside the processing tube (2). An adjusting slide rod (6) is slidably connected inside the arc-shaped sliding groove (5).

2. The anti-blocking filter device for a sampling tube for gas detection according to claim 1, characterized in that: A front sealing ring (17) is fixedly installed inside the mounting groove (16) and at the front end of the rotating disk (19), and a rear sealing ring (18) is fixedly installed inside the mounting groove (16) and at the rear end of the rotating disk (19).

3. The anti-blocking filter device for sampling tube of gas detection according to claim 1, wherein: The rotating disk (19) has a vent hole (20) at one end near the second filter screen (15).

4. The anti-clogging filter device for a sampling tube for gas detection according to claim 1, characterized in that: An arc-shaped protective plate (10) is fixedly connected to the rear end of the processing tube (2), and an adjusting slide rod (6) is slidably connected inside the arc-shaped protective plate (10).

5. The anti-clogging filter device for a sampling tube for gas detection according to claim 1, characterized in that: The rear end of the sampling tube (3) is fixedly connected to a motor base (13), and a control motor (12) is fixedly installed on the surface of the motor base (13). A rotating plate (11) is fixedly connected to the top of the control motor (12), and an adjusting slide rod (6) is fixedly connected to the front end of the top of the rotating plate (11).

6. The anti-clogging filter device for a gas detection sampling tube according to claim 1, characterized in that: The sampling tube (3) is equipped with a sampling tube (8) at the rear end.

7. The anti-clogging filter device for a gas detection sampling tube according to claim 1, characterized in that: The sampling tube (3) is fixedly connected to a connecting tube (9) at its rear end.

8. The anti-clogging filter device for a gas detection sampling tube according to claim 1, characterized in that: The extraction pipe (1) has a coal seam (7) at its front end.

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