Simulation test auxiliary device for monitoring leakage of buried gas pipeline in tunnel
By designing a leakage monitoring simulation test auxiliary device for buried gas pipelines in tunnels, the problem of difficulty in simulating multiple working conditions in the existing technology is solved, and effective exploration and detection of leakage patterns and influencing factors are achieved.
Patent Information
- Application Number
- CN202421115805.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The prior art is difficult to effectively explore and simulate the multiple operating conditions of leaks in buried gas pipelines in tunnels, resulting in difficulties in leak detection and monitoring.
An auxiliary device for leakage monitoring and simulation tests of buried gas pipelines in tunnels is designed, including a support fixed structure, a depth control structure and a pipeline locking structure. Through these structures, the buried depth and locking state of the test pipeline can be adjusted to simulate different working conditions. leakage situation.
This device can effectively simulate multiple working conditions of leakage of buried gas pipelines in tunnels, help explore leakage patterns and influencing factors, and improve the reliability of leakage detection and monitoring.
Smart Images
Figure CN222379290U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas pipeline leakage simulation, in particular to an auxiliary device for monitoring and simulating test of underground gas pipeline leakage in a tunnel. Background Art
[0002] In recent years, there have been many gas explosion accidents at home and abroad, of which more than 2 / 3 were caused by underground natural gas pipeline leakage, resulting in economic losses of hundreds of millions of yuan each year. Underground natural gas pipelines often leak due to small holes and cracks caused by corrosion and other reasons, and the early stage of leakage is often difficult to detect and control in time, and it is also difficult to detect and monitor the leakage.
[0003] The leakage and diffusion of natural gas pipelines have received extensive attention and importance from academia and society both at home and abroad. When a buried natural gas pipeline leaks, the natural gas will escape into the soil and diffuse in the soil. During this process, the diffusion range of the natural gas will be affected by soil parameters and other factors. The law of the diffusion and distribution process of leaked natural gas in the soil and the air area of the tunnel space has become a recent research hotspot, such as pipeline pressure, soil type, leakage hole size, leakage hole direction, pipeline burial depth, double hole spacing, etc.
[0004] In the existing technology, the research on the influencing factors and leakage laws of buried gas pipelines in tunnels is still in the exploratory stage. It is even more difficult to move the test site to the tunnel site to simulate the changes in different working conditions. Therefore, the exploration of the leakage factors and leakage laws of buried gas pipelines in tunnels has important engineering significance. Researchers are urgently needed to conduct experimental research in this field, so as to provide theoretical support for engineering practice.
[0005] Therefore, how to provide a buried gas pipeline leakage monitoring simulation test auxiliary device in the tunnel to simulate multiple working conditions of the buried gas pipeline leakage in the tunnel has become a technical problem that needs to be solved urgently. Utility Model Content
[0006] The technical problem to be solved by the utility model is how to provide a buried gas pipeline leakage monitoring simulation test auxiliary device in a tunnel, so as to simulate multiple working conditions of the buried gas pipeline leakage in the tunnel.
[0007] To this end, according to the first aspect, an embodiment of the utility model discloses an auxiliary device for a leakage monitoring simulation test of a buried gas pipeline in a tunnel, comprising: a supporting and fixing structure, wherein two relatively arranged depth adjustment structures are installed in the supporting and fixing structure, wherein a pipe locking structure for locking the test pipe is installed in the depth adjustment structure, the depth adjustment structure and the pipe locking structure are limitedly connected by fixing bolts, the depth adjustment structure is used to install and adjust the buried depth of the test pipe, and the supporting and fixing structure is used to load test soil to assist the leakage monitoring simulation test of the buried gas pipeline in the tunnel.
[0008] The utility model is further configured such that the supporting and fixing structure is a coverless box structure.
[0009] The utility model is further configured such that the depth control structure includes a square groove, an adjustment hole and a depth adjustment groove, the pipe locking structure is located in the square groove, the fixing bolt passes through the adjustment hole, and the test pipe passes through the square groove and the depth adjustment groove.
[0010] The utility model is further configured such that the pipe locking structure comprises an upper adjusting transverse plate and a lower supporting plate which are relatively detachably connected, the upper adjusting transverse plate is provided with a locking support for tightening the test pipe, the test pipe is locked between the upper adjusting transverse plate and the lower supporting plate, and the lower supporting plate is provided with a fixing hole for accommodating the fixing bolt to pass through.
[0011] The utility model is further configured such that the upper adjusting cross plate is provided with a first screw hole, an adjusting screw is passed through the first screw hole, a second screw hole adapted to the adjusting screw is provided on the lower supporting plate, and an end face of the locking support that contacts the test pipe is configured in an arc shape.
[0012] The utility model is further configured that a V-shaped groove for supporting the test pipe is provided in the middle of the lower support plate.
[0013] The utility model has the following beneficial effects:
[0014] (1) This device is equipped with a coverless box-type support and fixing structure, which can place the test pipe according to the test design requirements, and simulate the influence of soil on the leakage of buried gas pipelines in tunnels by filling different soils;
[0015] (2) The depth control structure and pipeline fixed adjustment structure of the device are matched with fixing bolts and adjustment holes to make the test pipeline at different buried depths, and further explore the influence of different pipeline buried depths, leakage hole sizes, leakage hole directions, leakage hole distances, pipeline pressures, etc. on the leakage of buried gas pipelines in tunnels;
[0016] (3) The pipe fixing and adjusting structure in the device is provided with a V-shaped groove to accommodate test pipes of various specifications and sizes;
[0017] (4) The lower end of the locking support of the device is set to an arc structure, which can better fit the test pipe and help to lock and fix the test pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the auxiliary device for monitoring the leakage of underground gas pipelines in tunnels disclosed in this embodiment;
[0020] Figure 2 It is a structural schematic diagram of a pipeline locking structure in a tunnel buried gas pipeline leakage monitoring simulation test auxiliary device disclosed in this embodiment;
[0021] Figure 3 It is a structural schematic diagram of a locking support in the auxiliary device for monitoring and simulating a test of underground gas pipeline leakage in a tunnel disclosed in this embodiment;
[0022] Figure 4 It is a partial structural schematic diagram of the auxiliary device for monitoring leakage of underground gas pipelines in tunnels disclosed in this embodiment.
[0023] Figure numerals: 1. Support and fixing structure; 2. Depth adjustment structure; 21. Square groove; 22. Adjustment hole; 23. Depth adjustment groove; 3. Fixing bolt; 4. Pipeline locking structure; 41. Upper adjustment cross plate; 42. Locking support pillar; 43. Adjustment screw; 44. First screw hole; 45. Second screw hole; 46. V-shaped groove; 47. Fixing hole; 48. Lower support plate; 5. Test pipeline. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0027] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0028] The utility model discloses a tunnel buried gas pipeline leakage monitoring simulation test auxiliary device, such as Figure 1-4 As shown, it includes: a supporting and fixing structure 1, two relatively arranged depth regulating structures 2 are installed in the supporting and fixing structure 1, a pipeline locking structure 4 for locking the test pipeline 5 is installed in the depth regulating structure 2, the depth regulating structure 2 and the pipeline locking structure 4 are limitedly connected by fixing bolts 3, the depth regulating structure 2 is used to install and adjust the buried depth of the test pipeline 5, and the supporting and fixing structure 1 is used to load test soil to assist the simulation test of buried gas pipeline leakage monitoring in the tunnel.
[0029] It should be noted that the test pipe 5 is locked by the pipe locking structure 4, the depth control structure 2 is used to install and adjust the buried depth of the test pipe 5, and the supporting fixed structure 1 is used to load the test soil, thereby providing an auxiliary device for the leakage monitoring simulation test of the buried gas pipeline in the tunnel, which can assist the leakage monitoring simulation test of the buried gas pipeline in the tunnel, thereby realizing multi-working condition simulation of the leakage of the buried gas pipeline in the tunnel.
[0030] like Figure 1-4As shown, the supporting and fixing structure 1 is a box structure without a cover. It should be noted that since the supporting and fixing structure 1 is a box structure without a cover, it is formed in one piece using a metal material and can accommodate the test soil.
[0031] like Figure 1 and Figure 4 As shown, the depth control structure 2 includes a square groove 21, an adjustment hole 22 and a depth adjustment groove 23. The pipe locking structure 4 is located in the square groove 21. The fixing bolt 3 passes through the adjustment hole 22. The test pipe 5 passes through the square groove 21 and the depth adjustment groove 23. The depth control structure 2 is integrally formed of metal material and connected to the above-mentioned supporting and fixing structure 1 by welding technology. The two depth control structures 2 need to be coaxially fixed with a spacing of not less than 150 cm.
[0032] It should be noted that the number of the adjustment holes 22 is set to be multiple, and the pipeline locking structure 4 can be installed at different positions of the depth adjustment structure, thereby installing and adjusting the buried depth of the test pipeline 5.
[0033] like Figure 1-3 As shown, the pipeline locking structure 4 includes an upper adjustment horizontal plate 41 and a lower support plate 48 that are relatively detachably connected. The upper adjustment horizontal plate 41 is provided with a locking support 42 for tightening the test pipeline 5. The test pipeline 5 is locked between the upper adjustment horizontal plate 41 and the lower support plate 48. The lower support plate 48 is provided with a fixing hole 47 for accommodating the fixing bolt 3 to pass through. It should be noted that, through the provision of the locking support 42, the test pipeline 5 can be tightened between the upper adjustment horizontal plate 41 and the lower support plate 48 to achieve the locking function. The upper adjustment horizontal plate 41 and the locking support 42 are connected by welding technology.
[0034] like Figure 1-3 As shown, the upper adjustment horizontal plate 41 is provided with a first screw hole 44, an adjustment screw 43 is inserted into the first screw hole 44, a second screw hole 45 adapted to the adjustment screw 43 is provided on the lower support plate 48, and the end surface of the locking support 42 that contacts the test pipe 5 is arranged in an arc surface. It should be noted that, by setting the adjustment screw 43, the first screw hole 44 and the second screw hole 45, the adjustment horizontal plate and the lower support plate 48 can be quickly disassembled and assembled.
[0035] like Figure 1-3 As shown, a V-shaped groove 46 for supporting the test pipe 5 is provided in the middle of the lower support plate 48. It should be noted that, through the provision of the V-shaped groove 46, test pipes 5 of various sizes can be supported, thereby improving the adaptability of the auxiliary device.
[0036] In the specific implementation process, the supporting and fixing structure 1, the depth control structure 2, the fixing bolts 3, and the pipe locking structure 4 of the device are all made of conventional carbon steel. The thickness of the supporting and fixing structure 1 is 1 cm, and the thickness of the depth control structure 2 is 1 cm. The depth control structure 2 has four fixing holes 47 with the same aperture at different heights and equidistantly arranged.
[0037] The supporting fixed structure 1 of the device is set as a coverless box structure with a length of 500 cm, a width of 200 cm, and a height of 150 cm. The depth control structure 2 is 100 cm long and 3 cm wide. The square groove 21 is 80 cm long, 10 cm wide, and 120 cm deep. The depth adjustment groove 2323 is 40 cm wide and 120 cm deep.
[0038] The pipeline locking structure 4 of the device is 80 cm long, 10 cm wide and 50 cm high. The V-shaped groove 46 provided on the pipeline locking structure 4 is 40 cm wide at the top, 5 cm wide at the bottom and 40 cm deep, and is suitable for the test pipeline 5 with an outer diameter of 50 cm to 300 cm.
[0039] In the present device, the adjustment hole 22 and the fixing hole 47 are matched with the fixing bolt 3. The specific dimensions are easy to be realized by those skilled in the art according to the drawings in the specification, and will not be described in detail here.
[0040] The specific dimensions of the upper adjusting horizontal plate 41, the locking support 42, the adjusting screw 43, the first screw hole 44, the second screw hole 45, and the lower supporting plate 48 in the present device can be easily realized by those skilled in the art according to the drawings in the specification, and will not be described in detail here.
[0041] Directions:
[0042] In the specific implementation process, a test pipe 5 with an outer diameter of 100 cm is taken as an example:
[0043] In the first step, during the test, the two pipe locking structures 4 are fixed by the cooperation of the fixing bolts 3 and the lowest fixing holes 47;
[0044] The second step is to open the upper adjustment horizontal plate 41, place the test pipe 5 on the V-shaped groove 46 provided on the pipe locking structure 4, and adjust the distance between the two ends;
[0045] Step 3: The arc structure of the locking support 42 is brought close to the test pipe 5, and the test pipe 5 is locked by adjusting the screw 43;
[0046] The fourth step is to bury the test soil and monitoring and exploration equipment in appropriate locations as needed;
[0047] The fifth step is to add other necessary equipment according to the experiment, and then start the experimental exploration and collect data.
[0048] It should be further explained that various test conditions such as testing test pipes 5 with different outer diameters, different leakage holes, different soils, etc. can be achieved on the basis of the above steps or adjusted according to the test requirements of personnel in this field, thereby achieving the test exploration requirements.
[0049] It needs to be further explained that the utility model is a simulation test auxiliary device for monitoring leakage of buried gas pipelines in tunnels, which can be directly used to explore the leakage law of some buried gas pipelines in tunnels. The simulation test exploration of the law of diffusion distribution process in the air area of the tunnel space needs to add other facilities to realize it. Those skilled in the art can add corresponding settings according to the exploration content in the air area of the tunnel space.
[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A tunnel buried gas pipeline leakage monitoring simulation test auxiliary device, characterized in that: include: A support fixing structure (1) is provided, wherein two depth control structures (2) are arranged opposite to each other, wherein a pipeline locking structure (4) for locking a test pipeline (5) is installed in the depth control structure (2), wherein the depth control structure (2) and the pipeline locking structure (4) are connected in a limiting manner via fixing bolts (3), wherein the depth control structure (2) is used to install and adjust the buried depth of the test pipeline (5), and wherein the support fixing structure (1) is used to load test soil to assist in a simulated test of underground gas pipeline leakage monitoring in a tunnel.
2. The auxiliary device for monitoring leakage of underground gas pipelines in tunnels according to claim 1 is characterized in that: The supporting and fixing structure (1) is a coverless box structure.
3. The auxiliary device for monitoring leakage of underground gas pipelines in tunnels according to claim 1 or 2, characterized in that: The depth adjustment structure (2) comprises a square groove (21), an adjustment hole (22) and a depth adjustment groove (23); the pipe locking structure (4) is located in the square groove (21); the fixing bolt (3) passes through the adjustment hole (22); and the test pipe (5) passes through the square groove (21) and the depth adjustment groove (23).
4. The auxiliary device for monitoring leakage of underground gas pipelines in tunnels according to claim 1 is characterized in that: The pipeline locking structure (4) comprises an upper adjusting transverse plate (41) and a lower supporting plate (48) which are relatively detachably connected, the upper adjusting transverse plate (41) is provided with a locking support (42) for pressing against the test pipeline (5), the test pipeline (5) is locked between the upper adjusting transverse plate (41) and the lower supporting plate (48), and the lower supporting plate (48) is provided with a fixing hole (47) for accommodating the fixing bolt (3) to pass through.
5. The auxiliary device for monitoring leakage of underground gas pipelines in tunnels according to claim 4 is characterized in that: The upper adjustment horizontal plate (41) is provided with a first screw hole (44), an adjustment screw (43) is inserted into the first screw hole (44), the lower support plate (48) is provided with a second screw hole (45) adapted to the adjustment screw (43), and the end surface of the locking support (42) in contact with the test pipe (5) is arranged in an arc shape.
6. The auxiliary device for monitoring leakage of underground gas pipelines in tunnels according to claim 4 or 5, characterized in that: A V-shaped groove (46) for supporting the test pipe (5) is provided in the middle of the lower support plate (48).