Gas pipeline on-line leak detection device based on Internet of Things technology

Abstract

The utility model relates to a gas pipeline on-line leak detection device based on the Internet of Things technology, which comprises a base and an insertion column arranged below the base, an inner cavity is arranged in the base, a circuit board is arranged in the inner cavity, a power supply and a wireless transmission module are integrated in the circuit board, and the insertion column is of a hollow structure. The hollow part of the insertion column serves as a detection cavity, the side wall of the detection cavity is provided with an air hole communicated with the outside, the top of the detection cavity is provided with a gas sensor electrically connected with the circuit board, a solar panel is arranged above the base, and the power source stores electric energy generated by the solar panel and supplies power to the gas sensor and the wireless transmission module through the circuit board. By adopting the technical scheme, the utility model provides the gas pipeline on-line leakage detection device based on the Internet of Things technology, which can timely find leakage and determine leakage points of a pipeline line.

Description

Technical Field

[0001] The utility model relates to the field of gas engineering, and in particular to an online gas pipeline leak detection device based on Internet of Things technology. Background Art

[0002] With the development of science and technology, the Internet of Things technology has covered all aspects of life. It refers to connecting any object to the network through information sensing devices such as radio frequency identification, infrared sensors, global positioning systems, laser scanners and other information sensing devices according to agreed protocols. Objects exchange and communicate information through information transmission media to achieve intelligent identification, positioning, tracking, supervision and other functions.

[0003] Gas pipelines are special pipelines buried underground for transmitting gas. During use, gas pipelines may leak due to aging or external factors. As the amount of leakage increases, it not only wastes resources, but may even cause explosions and other dangerous situations. In order to reduce the possibility of the above situation, it is necessary to regularly check for leaks in gas pipelines, detect leaks in time, and deal with them in time.

[0004] The existing leak detection method is generally to install the gas leak detection instrument on the leak detection vehicle that patrols along the pipeline, take near-ground gas samples for analysis, and if a suspected leaking pipe section is found, drill a hole for further inspection. Such leak detection is not only time-consuming and labor-intensive, but also has a lag, and leaks cannot be discovered in time, and there are still certain safety hazards. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a gas pipeline online leak detection device based on Internet of Things technology, which can timely detect leaks and determine the leakage points of pipeline lines.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a base and a plug post arranged under the base, the base is provided with an inner cavity, the inner cavity is provided with a circuit board, the circuit board is integrated with a power supply and a wireless transmission module, the plug post is a hollow structure, the hollow part of the plug post serves as a detection cavity and the side wall is provided with an air vent connected to the outside world, the top of the detection cavity is provided with a gas sensor electrically connected to the circuit board, a solar panel is provided above the base, and the power supply stores the electric energy generated by the solar panel and supplies power to the gas sensor and the wireless transmission module through the circuit board.

[0007] By adopting the above technical solution, the leak detection devices are arranged above the gas pipeline at equal intervals along the gas pipeline and the base and the plug are inserted into the soil. The gas sensor monitors the gas concentration nearby at all times and sends the obtained data to the control center through the wireless transmission module. The control center notifies the emergency repair personnel to go to the scene for emergency repair when there is a hidden danger. The above structure has the following advantages: ① Rationally utilize the current Internet of Things technology, and use the gas sensors on the pipeline line as the eyes of the control center to obtain the latest data in real time, and find the leakage point at the first time when the abnormality occurs, so that the emergency repair work can be carried out more quickly and efficiently. At the same time, it can also save the workload increased by regular manual leak detection; ② Select solar panels as the energy source of the gas sensor and the wireless transmission module, and select the wireless transmission module as the information transmission method, eliminating the inconvenience caused by the layout of the power supply circuit and the communication circuit. At the same time, it is not restricted by the power supply circuit and the communication circuit, and can be installed and used at any time, and is easy to transfer; ③ It is not restricted by the ground structure. It can not only be directly inserted into softer soil, but also can be inserted after opening holes in cement and asphalt floors, and has a wider range of applications; ④ The column structure increases the contact area between the leak detection device and the soil on the one hand, improves the installation stability, and on the other hand forms a detection cavity surrounding the gas sensor. The soil in the detection cavity is looser and easier for gas to flow. At the same time, it also serves as a protective barrier for the gas sensor to extend its service life.

[0008] The utility model is further configured as follows: an installation cavity for installing a solar panel is arranged above the base, a sealant for fixing the solar panel is filled in the gap between the installation cavity and the solar panel, and a wire hole for passing the wires connecting the power supply and the solar panel is arranged at the bottom of the installation cavity.

[0009] By adopting the above technical solution, the solar panel is positioned by the installation cavity, and the sealant is used to fix the solar panel while preventing impurities and liquids from entering the inner cavity, thereby reducing the possibility of circuit board failure.

[0010] The utility model is further configured as follows: a mounting opening communicating with the inner cavity is arranged downward at the bottom of the base, a mounting step is arranged downward around the inner cavity, a buffer pad is compressed between the top of the circuit board and the mounting step, and bolts are arranged between the circuit board and the mounting step to fix the two.

[0011] By adopting the above technical solution, the circuit board is fixed to the installation step by bolts, so that the circuit board is easy to disassemble and assemble, and convenient for maintenance. Secondly, since there is vibration on the road all the time, and long-term vibration can easily damage the circuit board, a buffer pad is added between the circuit board and the installation step. The buffer pad absorbs part of the vibration, reducing the impact on the circuit board, thereby extending the service life of the circuit board.

[0012] The utility model is further configured as follows: a connecting groove is arranged around the outer periphery of the bottom of the base, the top of the plug column closes the installation opening, a connecting ring is arranged around the top of the plug column and is plugged into the connecting groove, the connecting ring is provided with a bayonet, the connecting groove is provided with a block that is plugged into the bayonet, and a sealing ring is compressed between the top of the connecting ring and the connecting groove.

[0013] By adopting the above technical solution, the connecting groove and the connecting ring are snap-fitted, and the installation port is closed while connecting the base and the column, making the structure more streamlined. At the same time, a sealing ring is compressed between the connecting ring and the connecting groove to ensure the sealing of the inner cavity.

[0014] The utility model is further configured as follows: a pin is arranged above the gas sensor and passes through the top of the plug post and is fixed to the plug post by injection molding; the pin is connected to the circuit board by a wire.

[0015] By adopting the above technical solution, the gas sensor fixes the pins to the plug post by injection molding, which, on the one hand, ensures the installation reliability of the gas sensor, and on the other hand, reduces the gap between the inner cavity and the outside world to ensure the sealing of the inner cavity.

[0016] The utility model is further configured as follows: a cross-shaped convex rib is arranged at the bottom of the plug post, and the thickness of the convex rib gradually decreases from the center of the plug post to the outside.

[0017] By adopting the above technical solution, the cross-shaped convex ribs are more conducive to being inserted into the soil and guide the encountered hard soil to the side.

[0018] The utility model is further configured as follows: the outer periphery of the base is provided with a limiting skirt flush with the upper end surface.

[0019] By adopting the above technical solution, the limiting skirt increases the contact area between the bottom of the base and the soil, so that the base can be stably maintained after being installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top perspective view of a specific implementation mode of the utility model;

[0021] Figure 2 It is a bottom perspective view of a specific embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional view of a specific implementation method of the utility model;

[0023] Figure 4 for Figure 3 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] 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.

[0026] like Figure 1 — Figure 4As shown, the utility model discloses an online gas pipeline leak detection device based on the Internet of Things technology, including a base 1 and a plug post 2 arranged below the base 1, an inner cavity 11 is arranged in the base 1, a circuit board 3 is arranged in the inner cavity 11, and the circuit board 3 integrates a power supply 31 and a wireless transmission module 32 (the wireless transmission module 32 can adopt a zigbee transmission module, which not only has the characteristics of low power consumption and low cost, but also can assist in sending data through a mesh structure composed of adjacent zigbee transmission modules, so that the sending distance is longer, and a wifi module can also be used to transmit data using a nearby public network), the plug post 2 is a hollow structure, and the plug post 2 The hollow part serves as a detection cavity 21 and a vent hole 22 communicating with the outside is opened on the side wall. A gas sensor 4 electrically connected to the circuit board 3 is arranged on the top of the detection cavity 21. A solar panel 5 is arranged above the base 1. The power supply 31 stores the electric energy generated by the solar panel 5 and supplies power to the gas sensor 4 and the wireless transmission module 32 through the circuit board 3. The leak detection device is arranged equidistantly above the gas pipeline along the gas pipeline and the base 1 and the plug 2 are inserted into the soil. The gas sensor 4 monitors the gas concentration nearby at all times and sends the obtained data to the control center through the wireless transmission module 32. The control center notifies the emergency repair personnel to go to the scene for emergency repair when there is a hidden danger. The above structure has the following advantages: ① Rationally utilize the current Internet of Things technology, and use the gas sensor 4 on the pipeline line as the eyes of the control center to obtain the latest data in real time, and find the leakage point at the first time when an abnormality occurs, so that the emergency repair work can be carried out more quickly and efficiently, and at the same time, it can also save the workload increased by regular manual leak detection; ② Select the solar panel 5 as the energy source of the gas sensor 4 and the wireless transmission module 32, and select the wireless transmission module 32 as the information transmission method, eliminating the inconvenience caused by the layout of the power supply circuit and the communication circuit. At the same time, it is not restricted by the power supply circuit and the communication circuit, and can be installed and used at any time, and is easy to transfer; ③ It is not limited by the ground structure, not only can it be directly inserted into the softer soil, but also can be inserted after opening a hole in the cement or asphalt ground, and the scope of application is wider; ④ The structure of the plug 2 increases the contact area between the leak detection device and the soil on the one hand, improves the installation stability, and on the other hand forms a detection cavity 21 surrounding the gas sensor 4. The soil in the detection cavity 21 is looser and easier for gas to flow. At the same time, it also serves as a protective barrier for the gas sensor 4 to extend its service life.

[0027] A mounting cavity 12 for mounting the solar panel 5 is provided above the base 1, and a sealant 121 is provided to fill the gap between the mounting cavity 12 and the solar panel 5 to fix the solar panel 5. A wire hole 122 is provided at the bottom of the mounting cavity 12 for the wires connecting the circuit board 3 and the solar panel 5 to pass through. The solar panel 5 is positioned by the mounting cavity 12, and the sealant 121 is used to fix the solar panel 5 while preventing impurities and liquids from entering the inner cavity 11, thereby reducing the possibility of failure of the circuit board 3.

[0028] A mounting opening communicating with the inner cavity 11 is provided at the bottom of the base 1 facing downward, a mounting step 13 facing downward is provided around the inner cavity 11, a buffer pad 131 is compressed between the top of the circuit board 3 and the mounting step 13, a bolt 132 is provided between the circuit board 3 and the mounting step 13 to form a fixed fit between the two, the circuit board 3 is fixed to the mounting step 13 by the bolt 132, the circuit board 3 is easy to be disassembled and assembled, and the circuit board 3 is easy to be maintained, secondly, because there is vibration on the road all the time, and long-term vibration can easily cause damage to the circuit board 3, a buffer pad 131 is added between the circuit board 3 and the mounting step 13, and the buffer pad 131 absorbs part of the vibration to reduce the impact on the circuit board 3, thereby extending the service life of the circuit board 3.

[0029] A connecting groove 14 is arranged around the outer periphery of the bottom of the base 1, and the installation port is closed at the top of the plug column 2. A connecting ring 23 which is plugged into the connecting groove 14 is arranged around the top of the plug column 2. The connecting ring 23 is provided with a bayonet 231. The connecting groove 14 is provided with a block 141 which is plugged into the bayonet 231. A sealing ring 142 is compressed between the top of the connecting ring 23 and the connecting groove 14. By plugging the connecting groove 14 with the connecting ring 23, the installation port is closed while the base 1 and the plug column 2 are connected, making the structure more streamlined. At the same time, a sealing ring 142 is compressed between the connecting ring 23 and the connecting groove 14 to ensure the sealing of the inner cavity 11.

[0030] A pin 41 is provided above the gas sensor 4, passing through the top of the plug post 2 and fixed to the plug post 2 by injection molding. The pin 41 is connected to the circuit board 3 by a wire. The gas sensor 4 is fixed to the plug post 2 by injection molding the pin 41. On the one hand, the installation reliability of the gas sensor 4 is ensured, and on the other hand, the gap between the inner cavity 11 and the outside world is reduced to ensure the sealing of the inner cavity 11.

[0031] A cross-shaped convex rib 24 is provided at the bottom of the plug post 2. The thickness of the convex rib 24 gradually decreases from the center of the plug post 2 to the outside. The cross-shaped convex rib 24 is more conducive to inserting into the soil and guiding the encountered hard soil to the side.

[0032] The outer periphery of the base 1 is provided with a limiting skirt 15 flush with the upper end surface. The limiting skirt 15 increases the contact area between the bottom of the base 1 and the soil, so that the base 1 can be stably maintained after being installed in place.

[0033] In addition, the circuit elements mentioned above (circuit board, power supply, wireless transmission module, gas sensor) are all commercially available components, and the models and specifications can be adjusted according to the coordination between each other and the circuit design, and can also be used in conjunction with the controller 33; the connection circuits are all existing technologies and are not the innovation of this application, so they are not described in detail and do not affect the understanding of the structure; the solar panel and the base are used as the first module, the circuit board is used as the second module, and the plug and the gas sensor are used as the third module, so the leak detection device is fully modularized, and only a single module needs to be replaced after damage, thereby reducing maintenance costs.

Claims

1. A gas pipeline online leak detection device based on Internet of Things technology, characterized by: It includes a base and a plug arranged below the base, wherein an inner cavity is arranged in the base, a circuit board is arranged in the inner cavity, a power supply and a wireless transmission module are integrated in the circuit board, the plug is a hollow structure, the hollow part of the plug serves as a detection cavity and a vent hole connected to the outside is opened on the side wall, a gas sensor electrically connected to the circuit board is arranged on the top of the detection cavity, a solar panel is arranged above the base, and the power supply stores the electric energy generated by the solar panel and supplies power to the gas sensor and the wireless transmission module through the circuit board.

2. The gas pipeline online leak detection device based on Internet of Things technology according to claim 1 is characterized by: A mounting cavity for mounting a solar panel is arranged above the base, a gap between the mounting cavity and the solar panel is filled with a sealant for fixing the solar panel, and a wire hole for passing wires connecting a power source and a solar panel is arranged at the bottom of the mounting cavity.

3. The gas pipeline online leak detection device based on Internet of Things technology according to claim 2 is characterized by: The bottom of the base is provided with a mounting opening communicating with the inner cavity, the inner cavity is surrounded by a mounting step facing downward, a buffer pad is compressed between the top of the circuit board and the mounting step, and bolts are provided between the circuit board and the mounting step to fix the two.

4. The gas pipeline online leak detection device based on Internet of Things technology according to claim 3 is characterized by: A connecting groove is arranged around the outer periphery of the bottom of the base, the top of the plug column closes the installation port, a connecting ring is arranged around the top of the plug column and is plugged into the connecting groove, the connecting ring is provided with a bayonet, the connecting groove is provided with a block that is plugged into the bayonet, and a sealing ring is compressed between the top of the connecting ring and the connecting groove.

5. The gas pipeline online leak detection device based on Internet of Things technology according to claim 4 is characterized in that: A pin is arranged above the gas sensor and passes through the top of the plug post and is fixed to the plug post by injection molding. The pin is connected to the circuit board through a wire.

6. The gas pipeline online leak detection device based on Internet of Things technology according to claim 5 is characterized by: The bottom of the plug post is provided with a cross-shaped convex rib, and the thickness of the convex rib gradually decreases from the center of the plug post to the outside.

7. The gas pipeline online leak detection device based on Internet of Things technology according to claim 6 is characterized by: The outer periphery of the base is provided with a limiting skirt flush with the upper end surface.

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