An automatic gas pipeline network for monitoring and preventing leaks

Abstract

This utility model discloses an automatic gas pipeline network for monitoring and preventing leaks, including a gas pipeline network and a base located within the gas pipeline network area. An adjacent suction pump, a detection box, and a control box are fixed to the top of the base. The suction pump and the detection box are connected via a gas supply pipe. A laser detection module is installed on the inner wall of the detection box. A pretreatment pipe is fixed to the inlet end of the suction pump, and a multi-layer filter assembly is installed inside the pretreatment pipe. The multi-layer filter assembly includes a coarse filter layer, a medium-efficiency filter layer, a molecular sieve layer, and a desiccant layer arranged sequentially from the outside to the inside. Through this structure, the pretreatment effectively eliminates dust, dirt, and moisture interference through the synergistic effect of the coarse stainless steel filter, PTFE medium-efficiency membrane, 3A molecular sieve, and color-changing silica gel desiccant, improving the cleanliness of the gas sample and increasing detection accuracy. The suction pump can quickly and actively extract gas samples from the surrounding environment, and combined with the laser detection module, real-time monitoring is achieved, improving detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring technology, and in particular to an automatic gas pipeline network for monitoring and preventing leaks. Background Technology

[0002] Gas pipelines are numerous and laid in complex and diverse environments. Some pipelines are easily corroded and damaged due to the harsh environment, which can lead to gas leaks. Gas leaks can cause huge economic losses and may also endanger public safety.

[0003] In the prior art, a search revealed a Chinese patent entitled "An Automatic Monitoring and Leakage Prevention Gas Pipeline Network," application number "202321847129.7." This patent mainly includes a main delivery pipe, which is connected to branch pipes via pipe connectors. A detection pipe is installed on one side of the branch pipe, and an electric valve is connected to the detection pipe. The other side of the detection pipe is connected to a mounting base via a bracket, and a laser methane remote sensing detector is mounted on the mounting base. A control box, containing a controller and a gas detector, is located on the side of the mounting base furthest from the bracket. While this patent uses a pump to extract gas from different locations in the branch pipe via electric valves and analyzes the extracted gas in a detector, the lack of an effective impurity treatment device means that the sampled gas often contains solid particles (pipeline corrosion products, dust, etc.) and water vapor (condensate, ambient humidity), among other impurities. Particulate matter may contaminate the optical detection window, causing laser scattering loss; while moisture may interfere with the laser refractive index, leading to drift and affecting detection accuracy. Therefore, this invention provides an automatic monitoring and leak-proof gas pipeline network to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an automatic gas pipeline network for monitoring and preventing leaks. The pretreatment system effectively eliminates dust, dirt, and water vapor interference through the synergistic effect of a coarse stainless steel filter, a PTFE medium-efficiency membrane, a 3A molecular sieve, and a color-changing silica gel desiccant, thereby improving the cleanliness of the gas sample and increasing the detection accuracy. The suction pump can quickly and actively extract gas samples from the surrounding environment, and combined with the laser detection module, it can achieve real-time monitoring and improve detection efficiency.

[0005] To achieve the above objectives, an automatic gas pipeline network for monitoring and preventing leaks is provided, comprising a gas pipeline network and a base located within the gas pipeline network area. An adjacent suction pump, a detection box, and a control box are fixedly mounted on the top of the base. The suction pump and the detection box are connected by a gas supply pipe. A laser detection module is provided on the inner wall of the detection box.

[0006] The inlet end of the air pump is fixedly provided with a pretreatment pipe, and the pretreatment pipe is provided with a multi-layer filter assembly.

[0007] The multi-layer filtration assembly includes, from the outside to the inside, a coarse filter layer, a medium filter layer, a molecular sieve layer, and a desiccant layer.

[0008] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, a limiting ring is fixed on the inner wall of the pretreatment pipe and on one side of the desiccant layer, and an end cap is installed at the end of the pretreatment pipe, with a hollow structure in the middle of the end cap.

[0009] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, a photovoltaic panel is fixed to the top of the base by multiple support rods, and a battery and an inverter are installed inside the control box.

[0010] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, the coarse filter layer is a stainless steel filter screen, and the medium filter layer is a PTFE filter membrane.

[0011] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, the desiccant layer is color-changing silica gel, and a transparent plate is embedded inside the pretreatment pipe and on one side of the desiccant layer.

[0012] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, the control box is further equipped with a control module and a communication module, and the communication module adopts wireless communication.

[0013] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, the control box is also equipped with a GPS positioning module, and an audible and visual alarm is fixed on the top of the control box.

[0014] According to the aforementioned automatic monitoring and leak prevention gas pipeline network, the coarse filter layer, medium filter layer, molecular sieve layer and desiccant layer are all fixed with sealing rings on the side near the limiting ring, and the end cap is screwed into the pre-treated pipe thread.

[0015] This utility model has the following beneficial effects:

[0016] 1. Compared with existing technologies, the pretreatment effectively eliminates dust, dirt and water vapor interference through the synergistic effect of coarse stainless steel filter, PTFE medium-efficiency membrane, 3A molecular sieve and color-changing silica gel desiccant, thereby improving the cleanliness of gas samples and enhancing detection accuracy.

[0017] 2. Compared with existing technologies, the suction pump can quickly and actively extract gas samples from the surrounding environment. Combined with the laser detection module, it enables real-time monitoring, which can obtain samples more efficiently and improve detection efficiency. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic monitoring and leak prevention gas pipeline network according to the present invention;

[0020] Figure 2 This is a partial structural diagram of a gas pipeline network for automatic monitoring and leak prevention according to the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the internal structure of the detection box for automatic monitoring and leak prevention of gas pipeline networks according to this utility model.

[0022] Figure 4 This is a schematic cross-sectional view of the internal structure of the pretreatment pipe of an automatic monitoring and leak prevention gas pipeline network according to the present invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of a control box for an automatic gas pipeline network that monitors and prevents leaks, according to this utility model.

[0024] Legend:

[0025] 1. Gas pipeline network; 2. Base; 3. Air intake pump; 4. Detection box; 5. Laser detection module; 6. Gas transmission pipe; 7. Pretreatment pipe; 8. End cap; 9. Coarse filter layer; 10. Transparent plate; 11. Photovoltaic panel; 12. Control box; 13. Audible and visual alarm; 14. Limit ring; 15. Medium-efficiency filter layer; 16. Molecular sieve layer; 17. Desiccant layer; 18. Sealing ring; 19. Battery; 20. Control module; 21. Communication module; 22. GPS positioning module; 23. Inverter. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5 This utility model provides an automatic monitoring and leak prevention gas pipeline network, which includes a gas pipeline network 1 and a base 2 located within the area of ​​the gas pipeline network 1. An air intake pump 3, a detection box 4, and a control box 12 are fixedly mounted on the top of the base 2. The air intake pump 3 and the detection box 4 are connected by a gas supply pipe 6. A laser detection module 5 is provided on the inner wall of the detection box 4 for high-precision analysis of gas composition.

[0028] A laser beam of a specific wavelength (1653nm) is emitted by the laser detection module 5. When the laser beam passes through an area containing combustible gas, the gas molecules absorb the laser energy of that specific wavelength, causing a change in the laser intensity. This change can be detected by the receiver, and the methane concentration can be calculated using Beer-Lambert's law, with high accuracy and fast response speed.

[0029] The inlet end of the air pump 3 is fixedly equipped with a pretreatment tube 7. The pretreatment tube 7 is equipped with a multi-layer filter assembly. The multi-layer filter assembly includes a coarse filter layer 9, a medium filter layer 15, a molecular sieve layer 16 and a desiccant layer 17 arranged sequentially from the outside to the inside. The coarse filter layer 9 is a stainless steel filter screen, the medium filter layer 15 is a PTFE filter membrane, and the desiccant layer 17 is color-changing silica gel. A transparent plate 10 is embedded inside the pretreatment tube 7 and on one side of the desiccant layer 17. The color-changing silica gel can visually display the humidity change. When the desiccant fails, the color changes from blue to red.

[0030] The suction pump 3 actively extracts gas samples from the surrounding pipeline network through the pretreatment pipe 7. The gas passes through the coarse filter layer 9 to intercept particulate matter, the PTFE medium-efficiency filter layer 15 to remove microparticles, and the molecular sieve layer 16 (type 3A) and the desiccant layer 17 to adsorb water vapor and reduce humidity. The pretreated gas enters the detection chamber 4 through the gas delivery pipe 6, where particulate matter, moisture and interfering gases are removed step by step to ensure detection accuracy.

[0031] A limiting ring 14 is fixedly provided on the inner wall of the pretreatment tube 7 and on one side of the desiccant layer 17. An end cap 8 is installed at the end of the pretreatment tube 7 and is threadedly connected to the pretreatment tube 7. The end cap 8 has a hollow structure in the middle. Sealing rings 18 are fixedly provided on the side of the coarse filter layer 9, the medium filter layer 15, the molecular sieve layer 16, and the desiccant layer 17 near the limiting ring 14.

[0032] The end of the pretreatment tube 7 is sealed by a threaded end cap 8, and each filter layer is equipped with a sealing ring 18 to prevent gas leakage. When replacing, it can be quickly disassembled by simply unscrewing the end cap 8.

[0033] A photovoltaic panel 11 is fixed to the top of the base 2 via multiple support rods. The photovoltaic panel 11, along with the battery 19 and inverter 23, constitutes an off-grid power supply system, ensuring long-term continuous operation. The control box 12 houses the battery 19, inverter 23, GPS positioning module 22, control module 20, and communication module 21. Maintenance personnel can quickly locate alarm points using the GPS positioning module 22. The communication module 21 uses wireless communication to upload gas concentration, equipment status, and location information to the cloud platform in real time. An audible and visual alarm 13 is fixed to the top of the control box 12. When the laser detection module 5 detects that the methane concentration exceeds the standard, the audible and visual alarm 13 immediately activates and pushes alarm information to the maintenance personnel's mobile phone or the monitoring center via the communication module 21.

[0034] Working principle: The suction pump 3 actively extracts gas samples from the surrounding pipeline network through the pretreatment pipe 7. The gas passes through the coarse filter layer 9 to intercept particulate matter, the PTFE medium-efficiency filter layer 15 to remove microparticles, and the molecular sieve layer 16 (type 3A) and the desiccant layer 17 to adsorb water vapor and reduce humidity. The pretreated gas enters the detection chamber 4 through the gas delivery pipe 6, where particulate matter, moisture and interfering gases are removed step by step to ensure detection accuracy.

[0035] Inside the detection chamber 4, the laser detection module 5 emits a laser beam of a specific wavelength (1653nm). When the laser beam passes through an area containing combustible gas, the gas molecules absorb the laser energy of that specific wavelength, causing a change in the laser intensity. This change can be detected by a receiver, and the methane concentration can be calculated using Beer-Lambert's law, resulting in high accuracy and fast response.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An automatic gas pipeline network for monitoring and preventing leaks, characterized in that, It includes a gas pipeline network (1) and a base (2) located in the area of ​​the gas pipeline network (1). The top of the base (2) is fixed with an adjacent suction pump (3), a detection box (4) and a control box (12). The suction pump (3) and the detection box (4) are connected by a gas pipeline (6). The inner wall of the detection box (4) is provided with a laser detection module (5). The inlet end of the air pump (3) is fixedly provided with a pretreatment pipe (7), and the pretreatment pipe (7) is provided with a multi-layer filter assembly inside; The multi-layer filter assembly includes a coarse filter layer (9), a medium filter layer (15), a molecular sieve layer (16), and a desiccant layer (17) arranged sequentially from the outside to the inside.

2. The automatic monitoring and leak prevention gas pipeline network according to claim 1, characterized in that, A limiting ring (14) is fixed on the inner wall of the pretreatment tube (7) and on one side of the desiccant layer (17). An end cap (8) is installed at the end of the pretreatment tube (7), and the middle part of the end cap (8) is designed with a hollow structure.

3. The automatic monitoring and leak prevention gas pipeline network according to claim 1, characterized in that, The base (2) has a photovoltaic panel (11) fixed on top by multiple support rods, and the control box (12) has a battery (19) and an inverter (23) inside.

4. The automatic monitoring and leak prevention gas pipeline network according to claim 3, characterized in that, The coarse filter layer (9) is a stainless steel filter screen, and the medium filter layer (15) is a PTFE filter membrane.

5. The automatic monitoring and leak prevention gas pipeline network according to claim 4, characterized in that, The desiccant layer (17) is color-changing silica gel, and a transparent plate (10) is embedded inside the pretreatment tube (7) and on one side of the desiccant layer (17).

6. The automatic monitoring and leak prevention gas pipeline network according to claim 4, characterized in that, The control box (12) is also equipped with a control module (20) and a communication module (21), and the communication module (21) adopts wireless communication.

7. The automatic monitoring and leak prevention gas pipeline network according to claim 6, characterized in that, The control box (12) is also equipped with a GPS positioning module (22), and an audible and visual alarm (13) is fixed on the top of the control box (12).

8. The automatic monitoring and leak prevention gas pipeline network according to claim 2, characterized in that, The coarse filter layer (9), medium filter layer (15), molecular sieve layer (16) and desiccant layer (17) are all fixed with sealing rings (18) on the side near the limiting ring (14), and the end cap (8) is threadedly connected to the pretreatment tube (7).

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