Gas treatment equipment for gas tunnel construction

Abstract

The utility model belongs to the technical field of gas treatment equipment, and particularly relates to gas treatment equipment for gas tunnel construction, which comprises an extraction pipe, the lower side wall of the extraction pipe is fixedly connected with a plurality of annular sleeves made of flexible materials, the upper side wall of the extraction pipe is fixedly connected with a shell, an air inflation assembly is mounted in the shell, and the air inflation assembly is connected with the extraction pipe. The inflation assembly comprises a piston ring and a plurality of guide pipes. The extraction pipe is inserted into the extraction hole of the tunnel, at the moment, the annular sleeve is not expanded so that the extraction pipe can be conveniently inserted, the pressing rod is pressed downwards, gas in the shell is fed into the annular sleeve through the guide pipe and the branch pipe, the annular sleeve is expanded to extrude the inner wall of the extraction hole for sealing, and the pressing rod is pulled upwards so that the extraction pipe can be extracted. And airflow in the annular sleeve flows back to the interior of the shell, so that the inner wall of the extraction hole is not extruded any more, and the extraction pipe is conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing equipment, in particular to gas processing equipment used for gas tunnel construction. Background Art

[0002] In the process of gas tunnel excavation, it is necessary to set up multiple extraction holes for extracting gas. A sealing device is required in each extraction hole to seal the extraction hole, and the gas is extracted through the extraction pipe in the sealing device. The gas extracted from multiple extraction holes needs to be collected for processing. In order to avoid direct gas discharge and air pollution, the gas needs to be ignited. The existing sealing device fills the gap between the extraction pipe and the extraction hole through a seal. Since the seal will squeeze the inner wall of the extraction hole, the existing sealing device is not easy to install in and remove from the extraction hole. Moreover, since the gas extracted from the extraction hole contains a large amount of solid impurities, these solid impurities are easy to block the combustion device used for gas combustion, causing the combustion device to be unable to use normally.

[0003] The existing Chinese patent with the announcement number CN114183187A discloses a gas treatment device for gas tunnel construction, which belongs to the technical field of gas treatment equipment, and includes a combustion device, a sealing device and an extraction device. The sealing device includes an extraction pipe, an annular sleeve and an inflation component. The annular sleeve is arranged on the extraction pipe, and the annular sleeve has an annular cavity and is provided with an inflation hole. The inflation component is provided with an air pumping hole. The extraction device includes an extraction container, a filter screen, a first connecting pipe and an extraction pump. A partition plate is fixedly provided inside the extraction container, and a filter hole is provided on the partition plate. The filter screen is arranged in the filter hole. The first connecting pipe is connected to the second cavity. The extraction pump is arranged on the first connecting pipe and is connected to the combustion device.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device inserts the extraction pipe into the extraction hole in the gas tunnel, and there is a certain gap between the two. When affected by external force, the extraction pipe will shake and drive the annular sleeve to deform, affecting the sealing effect of the annular sleeve on the extraction hole, which needs to be improved; therefore, in view of the above problems, a gas processing equipment for gas tunnel construction is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model provides a gas processing device for gas tunnel construction.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a gas processing device for gas tunnel construction described in the utility model includes an extraction pipe, the lower side wall of the extraction pipe is fixedly connected with a plurality of annular sleeves of flexible material, the upper side wall of the extraction pipe is fixedly connected with a shell, an inflatable component is installed inside the shell, and the inflatable component includes a piston ring and a plurality of conduits, the piston ring is installed inside the shell and sleeved on the outside of the extraction pipe, the top of the piston ring is fixedly connected with a plurality of pressing rods, and the pressing rods penetrate the shell and extend to the outside, the conduit is installed inside the extraction pipe, and the side wall of the conduit is fixedly connected with A plurality of branch pipes are provided, wherein the branch pipes penetrate the extraction pipe and are respectively connected with the annular sleeve and the shell. The intersection of the branch pipe and the extraction pipe is coated with sealant for sealing. When in use, the extraction pipe is inserted into the extraction hole of the tunnel. At this time, the annular sleeve is not expanded, which is convenient for the insertion of the extraction pipe. After the insertion of the extraction pipe is completed, the pressing rod is pressed downward to drive the piston ring to move downward, and then the gas inside the shell is sent into the interior of the annular sleeve through the conduit and the branch pipe, so that the annular sleeve expands and squeezes the inner wall of the extraction hole for sealing. When the gas extraction is completed, the pressing rod is pulled up to make the airflow inside the annular sleeve flow back to the interior of the shell so as to no longer squeeze the inner wall of the extraction hole, so as to facilitate the removal of the extraction pipe.

[0007] Preferably, the annular sleeve is an air bag.

[0008] Preferably, a plurality of thread grooves are provided on the surface of the extraction tube, and a connecting ring is fixedly connected to the top of the pressing rod.

[0009] Preferably, the top of the connecting ring is rotatably connected to a threaded ring, and the inner wall of the threaded ring is threadedly connected to the extraction tube. By rotating the threaded ring, the connecting ring can be driven to move up and down, thereby achieving stable pressing or pulling up of the pressing rod, and the position of the piston ring is limited by the self-locking property of the threaded connection.

[0010] Preferably, a filter screen is fixedly connected to the bottom end of the extraction pipe, and impurities in the gas are filtered through the filter screen.

[0011] Preferably, a support assembly is installed on the extraction tube, and the support assembly includes a limit ring and a lead screw. The limit ring is located between the shell and the annular sleeve, and the limit ring is fixedly installed on the surface of the extraction tube. After the extraction tube is inserted into the extraction hole, the limit ring is pressed against the ground for limiting the position, and then the adjustment ring is rotated to synchronously drive multiple lead screws to rotate through the transmission cooperation of gear one and gear two, so that the limit frame opens and presses against the side wall of the extraction hole for lateral support, effectively preventing the extraction tube from being tilted by external force and affecting the sealing effect of the annular sleeve.

[0012] Preferably, a plurality of slide grooves distributed in an annular shape are provided on the surface of the limit ring, the interior of the slide groove is slidably connected to the limit frame, both ends of the lead screw are rotatably installed inside the slide groove, and the lead screw is threadedly connected to the limit frame.

[0013] Preferably, one end of the lead screw is fixedly connected to gear one, a plurality of gears one are meshingly connected above a gear two, an adjustment ring is fixedly connected above the gear two, and the adjustment ring is rotatably connected to the extraction tube.

[0014] Preferably, a valve is installed above the extraction pipe, and a threaded interface may be installed on the top of the extraction pipe for connection with an air intake pipe of a combustion device, so that the gas enters the combustion device for combustion.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model inserts the extraction tube into the extraction hole of the tunnel. At this time, the annular sleeve is not expanded, which is convenient for inserting the extraction tube. The pressing rod is pressed downward to send the gas inside the shell into the inside of the annular sleeve through the conduit and the branch pipe, so that the annular sleeve expands and squeezes the inner wall of the extraction hole to seal it, and the pressing rod is pulled up to make the airflow inside the annular sleeve flow back to the inside of the shell so as not to squeeze the inner wall of the extraction hole, which is convenient for taking out the extraction tube.

[0017] 2. The utility model limits the position of the extraction tube by pressing the limit ring against the ground to prevent the extraction tube from falling into the extraction hole, and then rotates the adjustment ring to synchronously drive multiple lead screws to rotate through the transmission cooperation of gear one and gear two, so that the limit frame opens and presses against the side wall of the extraction hole for lateral support, effectively preventing the extraction tube from being tilted by external force and affecting the sealing effect of the annular sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the extraction tube and the shell of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the inflatable component of the utility model;

[0022] Figure 4 For this utility model Figure 3 Bottom view of

[0023] Figure 5 This is a schematic diagram of the structure of the support assembly of the utility model.

[0024] In the figure: 1. extraction tube; 2. annular sleeve; 3. shell; 4. inflation assembly; 41. piston ring; 42. pressing rod; 43. conduit; 44. branch pipe; 45. connecting ring; 46. threaded ring; 5. filter screen; 6. support assembly; 61. limit ring; 62. slide groove; 63. limit frame; 64. screw; 65. gear one; 66. gear two; 67. adjustment ring; 7. valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-4 As shown, a gas processing device for gas tunnel construction includes an extraction pipe 1, a plurality of annular sleeves 2 made of flexible material are fixedly connected to the lower side wall of the extraction pipe 1, a shell 3 is fixedly connected to the upper side wall of the extraction pipe 1, an inflatable component 4 is installed inside the shell 3, and the inflatable component 4 includes a piston ring 41 and a plurality of conduits 43, the piston ring 41 is installed inside the shell 3 and sleeved on the outside of the extraction pipe 1, a plurality of pressing rods 42 are fixedly connected to the top of the piston ring 41, and the pressing rods 42 penetrate the shell 3 and extend to the outside, the conduit 43 is installed inside the extraction pipe 1, and a plurality of branch pipes 44 are fixedly connected to the side wall of the conduit 43, and the branch pipes 44 penetrate the extraction pipe 1 They are respectively connected with the annular sleeve 2 and the shell 3. The intersection of the branch pipe 44 and the extraction pipe 1 is coated with sealant for sealing. When in use, the extraction pipe 1 is inserted into the extraction hole of the tunnel. At this time, the annular sleeve 2 is not expanded, which is convenient for the insertion of the extraction pipe 1. After the extraction pipe 1 is inserted, the pressing rod 42 is pressed downward to drive the piston ring 41 to move downward, and then the gas inside the shell 3 is sent into the interior of the annular sleeve 2 through the conduit 43 and the branch pipe 44, so that the annular sleeve 2 expands and squeezes the inner wall of the extraction hole for sealing. When the gas extraction is completed, the pressing rod 42 is pulled up to make the airflow inside the annular sleeve 2 flow back to the inside of the shell 3 so that it no longer squeezes the inner wall of the extraction hole, which is convenient for taking out the extraction pipe 1.

[0028] The annular sleeve 2 adopts an air bag.

[0029] The surface of the extraction tube 1 is provided with a plurality of thread grooves, and the top of the pressing rod 42 is fixedly connected with a connecting ring 45 .

[0030] The top of the connecting ring 45 is rotatably connected with a threaded ring 46 , and the inner wall of the threaded ring 46 is threadedly connected to the extraction tube 1 . The threaded ring 46 can be rotated to drive the connecting ring 45 to move up and down, thereby achieving stable pressing or pulling up of the pressing rod 42 .

[0031] The bottom end of the extraction pipe 1 is fixedly connected with a filter screen 5, through which impurities in the gas are filtered.

[0032] Embodiment 2

[0033] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, a support assembly 6 is installed on the extraction tube 1, and the support assembly 6 includes a limit ring 61 and a lead screw 64. The limit ring 61 is located between the shell 3 and the annular sleeve 2, and the limit ring 61 is fixedly installed on the surface of the extraction tube 1. After the extraction tube 1 is inserted into the extraction hole, the limit ring 61 is pressed against the ground for limiting, and then the adjustment ring 67 is rotated. Through the transmission cooperation of gear 1 65 and gear 2 66, multiple lead screws 64 are synchronously driven to rotate, so that the limit frame 63 is opened and pressed against the side wall of the extraction hole for lateral support, which effectively prevents the extraction tube 1 from being tilted by external force and affecting the sealing effect of the annular sleeve 2.

[0034] The surface of the limiting ring 61 is provided with a plurality of slide grooves 62 distributed in an annular shape. The interior of the slide groove 62 is slidably connected to the limiting frame 63 . Both ends of the lead screw 64 are rotatably installed inside the slide groove 62 , and the lead screw 64 is threadedly connected to the limiting frame 63 .

[0035] One end of the lead screw 64 is fixedly connected to a gear 1 65 , and a plurality of gear 1 65 are meshedly connected to a gear 2 66 on their upper sides. An adjustment ring 67 is fixedly connected to the upper side of the gear 2 66 , and the adjustment ring 67 is rotatably connected to the extraction tube 1 .

[0036] A valve 7 is installed above the extraction pipe 1, and a threaded interface can be installed on the top of the extraction pipe 1 for connecting with the air intake pipe of the combustion equipment, so that the gas enters the combustion equipment for combustion.

[0037] Working principle: when in use, insert the extraction pipe 1 into the extraction hole of the tunnel. At this time, the annular sleeve 2 is not expanded, which is convenient for the insertion of the extraction pipe 1. After the extraction pipe 1 is inserted, press the pressing rod 42 downward to drive the piston ring 41 to move downward, and then send the gas inside the shell 3 into the interior of the annular sleeve 2 through the conduit 43 and the branch pipe 44, so that the annular sleeve 2 expands and squeezes the inner wall of the extraction hole to seal. When the gas extraction is completed, pull up the pressing rod 42, so that the airflow inside the annular sleeve 2 flows back to the inside of the shell 3 so that it no longer squeezes the inner wall of the extraction hole, which is convenient for taking out the extraction pipe 1.

[0038] After the extraction tube 1 is inserted into the extraction hole, the limit ring 61 is pressed against the ground for limiting, and then the adjusting ring 67 is rotated, and the transmission cooperation of gear 1 65 and gear 2 66 synchronously drives multiple lead screws 64 to rotate, so that the limit frame 63 opens and presses against the side wall of the extraction hole for lateral support, effectively preventing the extraction tube 1 from being tilted by external force and affecting the sealing effect of the annular sleeve 2.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A gas treatment device for gas tunnel construction, comprising an extraction pipe (1), Features: The lower side wall of the extraction tube (1) is fixedly connected to a plurality of annular sleeves (2) made of a flexible material, the upper side wall of the extraction tube (1) is fixedly connected to a shell (3), an inflation assembly (4) is installed inside the shell (3), and the inflation assembly (4) comprises a piston ring (41) and a plurality of conduits (43), the piston ring (41) is installed inside the shell (3) and sleeved on the outside of the extraction tube (1), the top of the piston ring (41) is fixedly connected to a plurality of pressing rods (42), and the pressing rods (42) penetrate the shell (3) and extend to the outside, the conduit (43) is installed inside the extraction tube (1), and the side wall of the conduit (43) is fixedly connected to a plurality of branch pipes (44), and the branch pipes (44) penetrate the extraction tube (1) and are respectively connected to the annular sleeve (2) and the shell (3).

2. The gas treatment equipment for gas tunnel construction according to claim 1, Features: The annular sleeve (2) is an air bag.

3. The gas treatment equipment for gas tunnel construction according to claim 1, Features: The surface of the extraction tube (1) is provided with a plurality of thread grooves, and the top of the pressing rod (42) is fixedly connected with a connecting ring (45).

4. The gas treatment equipment for gas tunnel construction according to claim 3, Features: The top of the connecting ring (45) is rotatably connected to a threaded ring (46), and the inner side wall of the threaded ring (46) is threadedly connected to the extraction tube (1).

5. The gas treatment equipment for gas tunnel construction according to claim 1, Features: The bottom end of the extraction tube (1) is fixedly connected to a filter screen (5).

6. The gas treatment equipment for gas tunnel construction according to claim 1, Features: A support assembly (6) is installed on the extraction tube (1), and the support assembly (6) comprises a limit ring (61) and a lead screw (64). The limit ring (61) is located between the shell (3) and the annular sleeve (2), and the limit ring (61) is fixedly installed on the surface of the extraction tube (1).

7. The gas treatment equipment for gas tunnel construction according to claim 6, Features: The surface of the limiting ring (61) is provided with a plurality of slide grooves (62) distributed in an annular shape, the interior of the slide groove (62) is slidably connected to the limiting frame (63), the two ends of the lead screw (64) are rotatably mounted inside the slide groove (62), and the lead screw (64) is threadedly connected to the limiting frame (63).

8. The gas treatment equipment for gas tunnel construction according to claim 6, Features: One end of the lead screw (64) is fixedly connected to a gear one (65), a plurality of gear ones (65) are meshingly connected above a gear two (66), an adjustment ring (67) is fixedly connected above the gear two (66), and the adjustment ring (67) is rotatably connected to the extraction tube (1).

9. The gas treatment equipment for gas tunnel construction according to claim 6, Features: A valve (7) is installed above the extraction pipe (1).

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