Natural gas pipeline sampling device

Abstract

The utility model provides a natural gas pipeline sampling device which comprises a natural gas pipeline, an electric exhaust valve and an exhaust pipeline, a sealing box is installed above the natural gas pipeline, the electric exhaust valve is installed in the sealing box, the exhaust pipeline is connected above the electric exhaust valve, and a connecting pipe head is arranged on the right side of the sealing box. Compared with the prior art, the pipeline connecting device has the advantages that the connecting pipe head, the corrugated telescopic pipe, the air outlet pipe, the eduction pipe, the fixing plate and the pipeline clamp are arranged, the corrugated telescopic pipe can be pulled to be stretched or bent, and therefore the pipeline connecting device is convenient to use. The guide-out pipe can move to the position where sampling is convenient, natural gas pipelines at different positions can be sampled conveniently, meanwhile, the pipeline clamp can be arranged on the outer side of other adjacent pipelines in a sleeving mode, the position of the pipeline clamp is fixed through a bolt and a nut, the position of the guide-out pipe can be fixed, and if adjustment is needed, connection of the pipeline clamp is removed.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas pipelines, and particularly relates to a sampling device for natural gas pipelines. Background Art

[0002] Sampling of natural gas pipelines plays a crucial role in the production, transportation and use of natural gas. By sampling and analyzing the natural gas in the pipeline, key parameters such as the composition, purity, calorific value of natural gas can be determined, which helps to ensure the quality and safety of natural gas, optimize the production process, and ensure that users can obtain natural gas supply that meets requirements. However, when sampling points that are difficult to sample are faced in natural gas pipeline sampling, it takes a long time to sample, and even the pipeline needs to be modified, which seriously affects time and efficiency. Preparing additional tools or equipment takes time and will cause delays in sampling work. Pipeline modification is an even longer process that requires multiple links such as planning, approval, and construction, greatly extending the sampling cycle. This may cause the quality monitoring results of natural gas to lag, making it impossible to detect problems and take measures in a timely manner. At the same time, the costs involved in modifying the pipeline are huge, including engineering design, construction materials, labor costs, etc. To solve this problem, we have developed a sampling device for natural gas pipelines. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a sampling device for natural gas pipelines to solve the problems raised in the above background art.

[0004] The utility model is realized through the following technical solutions: A sampling device for natural gas pipelines, including: a natural gas pipeline, an electric exhaust valve, and an exhaust pipeline. A sealing box is installed above the natural gas pipeline. The electric exhaust valve is installed inside the sealing box. The exhaust pipeline is connected above the electric exhaust valve. A connecting pipe head is provided on the right side of the sealing box;

[0005] The right side of the connecting pipe head is connected to an air outlet pipe through a corrugated expansion pipe. A lead-out pipe is provided on the right side of the air outlet pipe. A fixing plate is installed outside the lead-out pipe. A pipe clamp is connected below the fixing plate;

[0006] A docking ring is provided on the right side of the lead-out pipe. The right side of the docking ring is connected to a sampling bottle through a manual intake valve. A docking groove is opened on the left side surface of the docking ring. A magnetic attracting piece is installed at the rear inside the docking groove. Both the right end of the lead-out pipe and the magnetic attracting piece are made of magnetic materials.

[0007] As a preferred embodiment, the left end of the lead-out pipe is made of stainless steel material, and the right side of the exhaust pipeline extends out of the sealing box.

[0008] As a preferred embodiment, internal threads are provided on the inner wall of the right end of the exhaust pipe and the inner wall of the left end of the outlet pipe, and external threads are provided on the outer wall of the connecting pipe head and the outer wall of the right end of the outlet pipe.

[0009] As a preferred embodiment, the connecting pipe head is rotationally connected to the inner wall of the right end of the exhaust pipe by threads, and the right end of the outlet pipe is rotationally connected to the inner wall of the left end of the outlet pipe by threads.

[0010] As a preferred embodiment, a bolt is installed below the pipe clamp, a nut is installed at the rear end of the bolt, and the left side surface of the magnetic attraction piece and the right side surface of the outlet pipe are arranged with opposite magnetic poles.

[0011] As a preferred embodiment, a rubber sealing layer is provided on the inner wall of the docking groove, and the electric exhaust valve is internally communicated with the natural gas pipeline.

[0012] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0013] 1. By providing a connecting pipe head, a corrugated expansion pipe, an outlet pipe, an outlet pipe, a fixing plate and a pipe clamp, the corrugated expansion pipe can be pulled to stretch or bend, so that the outlet pipe can be moved to a position convenient for sampling, thereby facilitating sampling of natural gas pipelines at different positions. At the same time, the pipe clamp can also be sleeved on the outer side of other adjacent pipes and fixed in position by bolts and nuts, so that the position of the outlet pipe can be fixed. If adjustment is still required, the connection of the pipe clamp can be released.

[0014] 2. By providing a sampling bottle, a docking ring, a docking groove and a magnetic attraction piece, pick up the sampling bottle and insert the right end of the outlet pipe into the docking groove, so that the right end of the outlet pipe is magnetically connected to the magnetic attraction piece, thereby enabling the rapid installation of the sampling bottle. After the connection is completed, open the manual intake valve, and the natural gas in the natural gas pipeline can enter the sampling bottle to complete the sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of the natural gas pipeline sampling device of the present utility model.

[0017] Figure 2 It is a schematic diagram of the left view structure of the natural gas pipeline sampling device of the present utility model.

[0018] Figure 3 This is a schematic diagram of the internal cross-section of the sealing box in the natural gas pipeline sampling device of the present utility model.

[0019] Figure 4 It is Figure 2 An enlarged schematic view of part A of

[0020] In the figure, 1 is the natural gas pipeline; 2 is the sealing box; 3 is the connecting pipe head; 4 is the corrugated expansion pipe; 5 is the outlet pipe; 6 is the fixing plate; 7 is the leading-out pipe; 8 is the pipe clamp; 9 is the bolt; 10 is the sampling bottle; 11 is the manual air inlet valve; 12 is the nut; 13 is the electric exhaust valve; 14 is the exhaust pipeline; 15 is the docking ring; 16 is the docking groove; 17 is the magnetic sheet. Specific implementation manners

[0021] 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.

[0022] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a natural gas pipeline sampling device, including: a natural gas pipeline 1, an electric exhaust valve 13, and an exhaust pipeline 14. A sealing box 2 is installed above the natural gas pipeline 1. The electric exhaust valve 13 is installed inside the sealing box 2. The exhaust pipeline 14 is connected above the electric exhaust valve 13. A connecting pipe head 3 is provided on the right side of the sealing box 2;

[0023] The right side of the connecting pipe head 3 is connected to an outlet pipe 5 through a corrugated expansion pipe 4. A leading-out pipe 7 is provided on the right side of the outlet pipe 5. A fixing plate 6 is installed outside the leading-out pipe 7. The lower part of the fixing plate 6 is connected to a pipe clamp 8;

[0024] A docking ring 15 is provided on the right side of the leading-out pipe 7. The docking ring 15 is connected to a sampling bottle 10 through a manual air inlet valve 11 on the right side. A docking groove 16 is opened on the left side surface of the docking ring 15. A magnetic sheet 17 is installed at the rear inside the docking groove 16. The right end of the leading-out pipe 7 and the magnetic sheet 17 are both made of magnetic materials.

[0025] The left end of the leading-out pipe 7 is made of stainless steel material, and the right side of the exhaust pipeline 14 extends out of the sealing box 2.

[0026] Internal threads are provided on the inner walls of the right ends of the exhaust pipeline 14 and the left end of the leading-out pipe 7, and external threads are provided on the outer walls of the connecting pipe head 3 and the right end of the outlet pipe 5.

[0027] The connecting pipe head 3 is rotationally connected to the inner wall of the right end of the exhaust pipe 14 by threads, and the right end of the air outlet pipe 5 is rotationally connected to the inner wall of the left end of the lead-out pipe 7 by threads.

[0028] A bolt 9 is installed below the pipe clamp 8, a nut 12 is installed at the rear end of the bolt 9, and the left side surface of the magnetic attraction piece 17 and the right side surface of the lead-out pipe 7 are arranged with opposite magnetic poles.

[0029] The inner wall of the docking groove 16 is provided with a rubber sealing layer, and the electric exhaust valve 13 is internally communicated with the natural gas pipeline 1.

[0030] Please refer to Figures 1 to 3 , as the first embodiment of the present utility model: Before actual use, the corrugated telescopic pipe 4 can be pulled through the fixing plate 6 to stretch and bend the corrugated telescopic pipe 4 according to actual use requirements, so that the lead-out pipe 7 is moved to a position convenient for sampling. Then, the nut 12 can be removed, the pipe clamp 8 is sleeved on other adjacent pipes, and then the pipe clamp 8 is clamped on the outer side of other pipes through the connection of the bolt 9 and the nut 12 to fix the lead-out pipe 7. Through the above steps, the final effect is that by pulling the corrugated telescopic pipe 4 to stretch or bend, the lead-out pipe 7 can be moved to a position convenient for sampling, thereby facilitating the sampling of the natural gas pipeline 1 at different positions.

[0031] Please refer to Figures 1 to 4 , as the second embodiment of the present utility model: According to the further elaboration of the first embodiment, during actual use, pick up the sampling bottle 10, insert the lead-out pipe 7 into the docking groove 16. At the same time, the right end of the lead-out pipe 7 and the magnetic attraction piece 17 are attracted by opposite poles, so that the installation of the sampling bottle 10 can be completed. At the same time, the rubber sealing layer on the inner wall of the docking groove 16 can seal the gap between it and the lead-out pipe 7. Next, open the electric exhaust valve 13, the natural gas in the natural gas pipeline 1 can enter the exhaust pipe 14, then enter the corrugated telescopic pipe 4 through the connecting pipe head 3, and enter the manual intake valve 11 through the air outlet pipe 5 and the lead-out pipe 7, and then enter the sampling bottle 10 to complete the sampling of natural gas. After sampling, close the electric exhaust valve 13 and the manual intake valve 11 to interrupt the transmission of natural gas. Then pick up the sampling bottle 10, disconnect the right end of the lead-out pipe 7 from the magnetic attraction piece 17, and the disassembly of the sampling bottle 10 can be quickly completed. Then send the sampling bottle 10 for detection. Through the above steps, the final effect is that the sampling bottle 10 can be easily installed and disassembled quickly.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. Natural gas pipeline sampling device, comprising: A natural gas pipeline (1), an electric exhaust valve (13), and an exhaust pipeline (14). A sealing box (2) is installed above the natural gas pipeline (1). The electric exhaust valve (13) is installed inside the sealing box (2). An exhaust pipeline (14) is connected above the electric exhaust valve (13). It is characterized in that: a connecting pipe head (3) is provided on the right side of the sealing box (2); The right side of the connecting pipe head (3) is connected to an air outlet pipe (5) through a corrugated expansion pipe (4). A lead-out pipe (7) is provided on the right side of the air outlet pipe (5). A fixing plate (6) is installed on the outside of the lead-out pipe (7). A pipe clamp (8) is connected below the fixing plate (6); A docking ring (15) is provided on the right side of the lead-out pipe (7). The docking ring (15) is connected to a sampling bottle (10) through a manual intake valve (11) on the right side. A docking groove (16) is formed on the left side surface of the docking ring (15). A magnetic attraction piece (17) is installed at the rear inside the docking groove (16). The right end of the lead-out pipe (7) and the magnetic attraction piece (17) are both made of magnetic materials.

2. The natural gas pipeline sampling device according to claim 1, characterized in that: The left end of the lead-out pipe (7) is made of stainless steel material. The right side of the exhaust pipeline (14) extends out of the sealing box (2).

3. The natural gas pipeline sampling device according to claim 2, wherein: Internal threads are provided on the inner walls of the right ends of the exhaust pipeline (14) and the left end of the lead-out pipe (7). External threads are provided on the outer walls of the connecting pipe head (3) and the right end of the air outlet pipe (5).

4. The natural gas pipeline sampling device according to claim 3, characterized in that: The connecting pipe head (3) is rotationally connected to the inner wall of the right end of the exhaust pipeline (14) through threads. The right end of the air outlet pipe (5) is rotationally connected to the inner wall of the left end of the lead-out pipe (7) through threads.

5. The natural gas pipeline sampling device according to claim 4, characterized in that: A bolt (9) is installed below the pipe clamp (8). A nut (12) is installed at the rear end of the bolt (9). The left side surface of the magnetic attraction piece (17) and the right side surface of the lead-out pipe (7) are arranged with opposite magnetic poles.

6. The natural gas pipeline sampling device according to claim 1, wherein: A rubber sealing layer is provided on the inner wall of the docking groove (16). The electric exhaust valve (13) is internally connected to the natural gas pipeline (1).

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