Device for sampling coal gas

Abstract

The utility model discloses a device for sampling coal gas, which comprises a crotch type four-way pipe, a rubber hose is fixed at the left end of the crotch type four-way pipe, three ends of the right side of the crotch type four-way pipe are respectively sleeved with a rubber ball bladder, a clamping mechanism is arranged on the outer side of the crotch type four-way pipe, and the clamping mechanism comprises a moving plate. A rubber ball bladder is arranged at the right end of a crotch type four-way pipe in a sleeving mode, a movable plate is moved, an air bag ring is moved to the connecting position of the rubber ball bladder and the crotch type four-way pipe, a screw rod is rotated, the screw rod drives a piston block to move downwards, the piston block extrudes air in an air cylinder into a connecting pipe and a ventilation pipe, and then the air enters the air bag ring; the air bag ring expands to extrude the rubber ball bladder, so that the rubber ball bladder and the crotch type four-way pipe are connected more tightly, the rubber ball bladder is prevented from falling off and leaking air, finally, the rubber hose is connected with the gas cabinet, a valve of the gas cabinet is opened, and after gas enters the rubber ball bladder, the rubber hose is clamped through a spring water stop clamp, and then the rubber hose is taken down.

Description

Technical Field

[0001] This utility model relates to the field of gas sampling technology, specifically to a device for gas sampling. Background Technology

[0002] Steel companies typically use coke as their main fuel and produce a large amount of coal gas during the ironmaking process as the power source for the entire process. The quality of the coal gas is related to the company's cost-effectiveness and safe development, and coal gas samples need to be collected daily for testing and analysis.

[0003] Existing gas sampling devices typically use a single rubber bulb for gas collection. However, in reality, some gas holders have relatively low pressure, and when gas enters the interior of the rubber bulb, it can only hold a small amount of gas. The gas pressure is insufficient to cause the rubber bulb to inflate significantly, resulting in too little gas being collected per bulb for testing and analysis. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a device for gas sampling, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a device for gas sampling, comprising a tree-branch-shaped four-way pipe, a rubber hose fixed to the left end of the tree-branch-shaped four-way pipe, rubber bladders fitted to the three right ends of the tree-branch-shaped four-way pipe, a clamping mechanism provided on the outer side of the tree-branch-shaped four-way pipe, the clamping mechanism comprising a movable plate, three through-holes on the left side of the movable plate, the three right ends of the tree-branch-shaped four-way pipe passing through the holes respectively, an annular groove provided on the inner wall of the hole, an air bladder ring provided inside the annular groove, and a connecting pipe fixed inside the movable plate;

[0006] Ventilation pipes are fixed inside the movable plate at both the front and rear of the connecting pipe. The bottom ends of the ventilation pipes and the connecting pipes are respectively fixedly connected to the outer walls of the three airbag rings. The other end of the ventilation pipe is fixedly connected to the outer wall of the connecting pipe. An air cylinder is fixed to the top of the movable plate. The top of the connecting pipe and the bottom of the air cylinder are fixedly connected. A piston block is slidably connected to the inner wall of the air cylinder. A screw is screwed to the upper part of the inside of the air cylinder. The bottom end of the screw is rotatably connected to the top of the piston block.

[0007] Preferably, a rotating block is fixed to the top of the screw.

[0008] Preferably, an air nozzle is fixed to the outer wall of the air cylinder, and a sealing cap is screwed onto the outer wall of the air nozzle.

[0009] Preferably, the sealing cover has a sealing ring inside.

[0010] Preferably, a fixed plate is provided on the left side of the movable plate, and the three right ends of the tree-branch-shaped four-way pipe pass through the fixed plate and are fixedly connected to the fixed plate. Two movable rods are slidably connected inside the fixed plate, and the right end of the movable rods is fixedly connected to the left side of the movable plate.

[0011] Preferably, two fixed magnetic blocks are fixed on the inside right side of the fixed plate, and two movable magnetic blocks are fixed on the inside left side of the movable plate, and the fixed magnetic blocks and the movable magnetic blocks attract each other.

[0012] Beneficial effects

[0013] This invention provides a device for gas sampling. Compared with the prior art, it has the following advantages:

[0014] 1. This gas sampling device consists of a tree-branch-shaped four-way pipe, a rubber bulb, and a clamping mechanism. The rubber bulb is fitted onto the right end of the tree-branch-shaped four-way pipe. Moving the moving plate moves the air bladder ring to the connection point between the rubber bulb and the tree-branch-shaped four-way pipe. Rotating the screw causes the piston block to move downwards, forcing the gas inside the gas cylinder into the connecting pipe and vent pipe. The gas then enters the air bladder ring, which expands and compresses the rubber bulb, ensuring a tighter connection between the rubber bulb and the tree-branch-shaped four-way pipe, preventing the rubber bulb from falling off or leaking. Finally, the rubber hose is connected to the gas holder, and the gas holder valve is opened. After the gas enters the rubber bulb, a spring-loaded water clamp is used to hold the rubber hose in place, and then the rubber hose is removed. This completes the gas sampling. Sampling with multiple rubber bulbs simultaneously can increase the gas collection volume when the gas holder pressure is low.

[0015] 2. The device for gas sampling is equipped with a fixed plate, a movable rod, a fixed magnetic block, and a movable magnetic block. The movable rod restricts the position of the movable plate, facilitating its movement without requiring manual adjustment of its height. Furthermore, when the rubber bladder is fitted, the fixed magnetic block and the movable magnetic block attract each other, preventing the movable plate from moving and affecting the fitting of the rubber bladder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the movable plate in this utility model;

[0018] Figure 3 This is a cross-sectional view of the air cylinder in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing plate in this utility model.

[0020] In the diagram: 1. Rubber bladder; 2. Clamping mechanism; 201. Airbag ring; 202. Vent pipe; 203. Connecting pipe; 204. Air cylinder; 205. Screw; 206. Rotating block; 207. Fixed plate; 208. Moving plate; 209. Piston block; 3. Moving rod; 4. Tree branch-shaped four-way pipe; 5. Rubber hose; 6. Round hole; 7. Moving magnetic block; 8. Annular groove; 9. Sealing cap; 10. Air nozzle; 11. Fixed magnetic block; 12. Sealing ring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a device for gas sampling, including a tree-branch-shaped four-way pipe 4, a rubber hose 5 fixed to the left end of the tree-branch-shaped four-way pipe 4, rubber bladders 1 fitted to the three right ends of the tree-branch-shaped four-way pipe 4, a clamping mechanism 2 provided on the outside of the tree-branch-shaped four-way pipe 4, the clamping mechanism 2 including a moving plate 208, three through-holes 6 opened on the left side of the moving plate 208, the three right ends of the tree-branch-shaped four-way pipe 4 respectively passing through the holes 6, an annular groove 8 opened on the inner wall of the hole 6, an airbag ring 201 provided inside the annular groove 8, a connecting pipe 203 fixed inside the moving plate 208, and vent pipes 202 fixed inside the moving plate 208 in front of and behind the connecting pipe 203, the bottom end of the vent pipe 202 and the bottom end of the connecting pipe 203 respectively connecting to the outer wall of the three airbag rings 201. The gas pipe 202 is fixedly connected to the outer wall of the connecting pipe 203. The top of the moving plate 208 is fixedly connected to the gas cylinder 204. The top of the connecting pipe 203 is fixedly connected to the bottom of the gas cylinder 204. The inner wall of the gas cylinder 204 is slidably connected to the piston block 209. The upper part of the gas cylinder 204 is screwed with a screw rod 205. The bottom end of the screw rod 205 is rotatably connected to the top of the piston block 209. This allows multiple rubber bulbs 1 to be sampled at the same time, preventing insufficient sampling due to low gas holder pressure. The top of the screw rod 205 is fixedly connected to a rotating block 206, which facilitates the rotation of the screw rod 205. The outer wall of the gas cylinder 204 is fixedly connected to a gas nozzle 10. The outer wall of the gas nozzle 10 is screwed with a sealing cap 9, which allows gas to be replenished into the gas cylinder 204. The sealing cap 9 has a sealing ring 12 inside, which improves the sealing performance.

[0023] Preferably, a fixed plate 207 is provided on the left side of the movable plate 208. The three ends of the tree-branch-shaped four-way pipe 4 pass through the fixed plate 207 on the right side and are fixedly connected to the fixed plate 207. Two movable rods 3 are slidably connected inside the fixed plate 207. The right end of the movable rod 3 is fixedly connected to the left side of the movable plate 208, thus limiting the height of the movable plate 208. Two fixed magnetic blocks 11 are fixed inside the right side of the fixed plate 207, and two movable magnetic blocks 7 are fixed inside the left side of the movable plate 208. The fixed magnetic blocks 11 and the movable magnetic blocks 7 attract each other, thus limiting the movement of the movable plate 208.

[0024] During operation, the rubber bulb 1 is fitted onto the right end of the branch-shaped four-way pipe 4. The moving plate 208 is moved so that the airbag ring 201 is moved to the connection point between the rubber bulb 1 and the branch-shaped four-way pipe 4. The screw 205 is rotated, and the screw 205 moves the piston block 209 downward. The piston block 209 squeezes the gas inside the air cylinder 204 into the connecting pipe 203 and the vent pipe 202. Then the gas enters the interior of the airbag ring 201, and the airbag ring 201 expands and squeezes the rubber bulb 1, making the connection between the rubber bulb 1 and the branch-shaped four-way pipe 4 tighter, preventing the rubber bulb 1 from falling off and leaking gas. Finally, the rubber hose 5 is connected to the gas holder, the valve of the gas holder is opened, and after the gas enters the rubber bulb 1, the rubber hose 5 is clamped with a spring water stop clamp, and then the rubber hose 5 is removed. This completes the gas sampling. Multiple rubber bulbs 1 can be sampled together, which can increase the amount of gas collected when the pressure in the gas holder is low.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for sampling of coal gas comprising a bush-type cross (4), characterised in that: A rubber hose (5) is fixed to the left end of the tree branch-shaped four-way pipe (4). A rubber bladder (1) is fitted to the three ends of the tree branch-shaped four-way pipe (4) on the right side. A clamping mechanism (2) is provided on the outside of the tree branch-shaped four-way pipe (4). The clamping mechanism (2) includes a moving plate (208). Three through holes (6) are opened on the left side of the moving plate (208). The three ends of the tree branch-shaped four-way pipe (4) pass through the holes (6) respectively. An annular groove (8) is opened on the inner side wall of the hole (6). An airbag ring (201) is provided inside the annular groove (8). A connecting pipe (203) is fixed inside the moving plate (208). The interior of the movable plate (208) is fixed with vent pipes (202) at both the front and rear of the connecting pipe (203). The bottom end of the vent pipe (202) and the bottom end of the connecting pipe (203) are respectively fixedly connected to the outer walls of the three airbag rings (201). The other end of the vent pipe (202) is fixedly connected to the outer wall of the connecting pipe (203). An air cylinder (204) is fixedly fixed to the top of the movable plate (208). The top of the connecting pipe (203) and the bottom of the air cylinder (204) are fixedly connected. A piston block (209) is slidably connected to the inner wall of the air cylinder (204). A screw rod (205) is screwed to the upper interior of the air cylinder (204). The bottom end of the screw rod (205) is rotatably connected to the top of the piston block (209).

2. A device for sampling coal gas as claimed in claim 1 wherein: A rotating block (206) is fixed to the top of the screw (205).

3. A device for sampling coal gas as claimed in claim 2 wherein: An air nozzle (10) is fixed to the outer wall of the air cylinder (204), and a sealing cap (9) is screwed onto the outer wall of the air nozzle (10).

4. A device for sampling coal gas as claimed in claim 3 wherein: The sealing cover (9) is provided with a sealing ring (12) inside.

5. The apparatus for gas sampling according to claim 4, characterized in that: The movable plate (208) has a fixed plate (207) on its left side. The three ends of the tree branch-shaped four-way pipe (4) on the right side pass through the fixed plate (207) and are fixedly connected to the fixed plate (207). The fixed plate (207) has two sliding rods (3) inside. The right end of the sliding rod (3) is fixedly connected to the left side of the movable plate (208).

6. The apparatus for gas sampling according to claim 5, characterized in that: Two fixed magnetic blocks (11) are fixed inside the right side of the fixed plate (207), and two movable magnetic blocks (7) are fixed inside the left side of the movable plate (208). The fixed magnetic blocks (11) and the movable magnetic blocks (7) attract each other.

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