Intelligent sensing explosion-proof device for natural gas pipeline

Abstract

The invention relates to the technical field of intelligent sensing of pipelines, and discloses an intelligent sensing explosion-proof device for a natural gas pipeline, the intelligent sensing explosion-proof device comprises a main pipeline and two secondary pipelines, a pressure relief assembly is arranged in the main pipeline, anti-leakage assemblies are arranged outside the main pipeline and the secondary pipelines, and a plurality of adsorption assemblies are arranged outside the main pipeline. An anti-static assembly is arranged outside the main pipeline; and the pressure relief assembly comprises a pressure sensor, the pressure sensor is installed in the main pipeline, the top end of the main pipeline is fixedly connected with a sleeve, the interior of the sleeve is fixedly connected with a first electric push rod, and the output end of the first electric push rod is fixedly connected with a floating ball. Through the structures such as the floating ball and the electric push rod, the pressure relief function can be started in time when the pressure is too high, and after the floating ball ascends, the negative pressure effect in the pressure relief box can quickly reduce the gas pressure in the main pipeline, so that pipeline breakage or explosion caused by too high pressure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline intelligent sensing, and in particular to an intelligent sensing explosion-proof device for a natural gas pipeline. Background Art

[0002] As a clean and efficient energy source, natural gas is widely used in urban energy supply systems. However, during long-term use, natural gas pipelines may face multiple safety risks such as excessive pipeline pressure, gas leakage, and pipeline vibration. Once a natural gas pipeline system fails, such as pipeline rupture or leakage, it will cause serious explosion accidents and threaten people's lives and property safety.

[0003] Traditional natural gas pipeline monitoring and safety protection systems usually rely on a single pressure monitoring or gas leak detection device, but these systems often have shortcomings such as incomplete monitoring, untimely response, and inadequate protection. For example, when the gas pressure in the pipeline is too high, the traditional system may not be able to start the pressure relief function in a timely and effective manner, causing the pipeline to rupture or explode; when the gas leaks, some traditional systems can only cut off the gas source through manual intervention or delayed response, and cannot achieve timely and effective automatic response; in addition, static electricity accumulation is also one of the hidden dangers in natural gas pipeline safety. Traditional systems usually ignore the problem of static electricity release, resulting in an increased risk of sparks or explosions. For this reason, those skilled in the art have proposed a natural gas pipeline intelligent sensing explosion-proof device to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an intelligent sensing explosion-proof device for a natural gas pipeline, which solves the problem that traditional natural gas pipeline monitoring and safety protection systems usually rely on a single pressure monitoring or gas leak detection device.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a natural gas pipeline intelligent sensing explosion-proof device, comprising a main pipeline and two secondary pipelines, the main pipeline is provided with a pressure relief component inside, the main pipeline and the secondary pipeline are provided with anti-leakage components outside, the main pipeline is provided with a plurality of adsorption components outside, and the main pipeline is provided with an anti-static component outside;

[0006] The pressure relief assembly includes a pressure sensor, which is installed inside the main pipeline. A sleeve is fixedly connected to the top end of the main pipeline. An electric push rod 1 is fixedly connected to the inside of the sleeve. A float is fixedly connected to the output end of the electric push rod 1. A sealing ring is fixedly connected to the outside of the float. A pressure relief box is fixedly connected to the top end of the main pipeline. A vacuum pump is fixedly connected to the outside of the pressure relief box.

[0007] Preferably, the anti-leakage component includes a gas sensor, which is installed on the upper side of the outside of the main pipeline, a vibration sensor is installed on the lower side of the outside of the main pipeline, a solenoid valve 1 is arranged on the right side of the main pipeline, and a solenoid valve 2 is arranged on the right side of the secondary pipeline.

[0008] Preferably, the adsorption component includes an activated carbon box, which is fixedly connected to the outside of the main pipeline, and the top of the activated carbon box is rotatably connected to a cover body, and the left and right sides of the inside of the activated carbon box are fixedly connected to electric push rods 2, and the output end of the electric push rods 2 is rotatably connected to a slider, and slide grooves are provided on the left and right sides of the bottom of the cover body.

[0009] Preferably, connecting flanges are provided at proximal ends of the main pipeline and the secondary pipeline, and the main pipeline and the secondary pipeline are connected via the connecting flanges.

[0010] Preferably, the anti-static component includes two wiring cards, which are respectively fixedly connected to the left and right sides of the bottom of the main pipeline, the bottom of the wiring card is fixedly connected with a grounding wire, the adjacent sides of the two grounding wires are fixedly connected with a grounding body, and an insulating gasket is provided at the connection of the connecting flange.

[0011] Preferably, the interior of the sleeve is slidably connected to the exterior of the float, the interior of the sleeve is connected to the interior of the pressure relief tank via a connecting pipe, and a one-way valve is provided inside the connecting pipe.

[0012] Preferably, the interior of the pressure relief box is connected to the input end of the vacuum pump through a pipeline, and the output end of the vacuum pump is connected to the interior of the main pipeline through a pipeline.

[0013] Preferably, the outside of the sliding block is slidably connected to the inside of the sliding groove.

[0014] Preferably, the pressure sensor, gas sensor and vibration sensor transmit the collected data to a central control system.

[0015] Preferably, the central control system includes:

[0016] Acquisition module: It is used to transmit the data collected by pressure sensors, gas sensors and vibration sensors to the central control system;

[0017] Analysis module: It analyzes the data collected in the central control system through the data processing unit;

[0018] Driving module: It drives electric push rod 1, vacuum pump, solenoid valve 1, solenoid valve 2 and electric push rod 2 through the analyzed information.

[0019] The present invention provides a natural gas pipeline intelligent sensing explosion-proof device, which has the following beneficial effects:

[0020] 1. The present invention can timely start the pressure relief function when the pressure is too high through structures such as the float and the electric push rod. After the float rises, the negative pressure in the pressure relief box can quickly reduce the gas pressure in the main pipeline, thereby avoiding pipeline rupture or explosion due to excessive pressure. The natural gas after pressure relief is returned to the main pipeline through the vacuum pump to ensure that the system returns to stability and avoids waste of natural gas.

[0021] 2. The present invention monitors gas leakage and pipeline vibration through gas sensors and vibration sensors, and can quickly identify the source of leakage and deal with it in time. Once a natural gas leak is detected, the system will automatically close the corresponding pipeline through the solenoid valve, cut off the gas source, and prevent the leakage from expanding. At the same time, the activated carbon box in the adsorption component can effectively adsorb the leaked gas, reduce environmental pollution and improve the overall safety of the system.

[0022] 3. The present invention effectively releases static electricity on the surface of the pipeline through the grounding wire and the grounding body, preventing sparks or explosions caused by static electricity accumulation. The provision of the insulating gasket can also further prevent static electricity from being transmitted from the pipeline joint, ensuring the safety of the pipeline during use.

[0023] 4. The present invention can comprehensively monitor the pipeline system through a variety of sensors (such as pressure sensors, gas sensors and vibration sensors). When abnormal gas pressure, gas leakage or vibration in the pipeline is detected, the system can perceive it in real time and perform data analysis and processing through the central control system. Through this automated monitoring and response mechanism, the system can quickly take corresponding measures, significantly improving the safety and reliability of the natural gas pipeline, reducing the possibility of equipment failure, and reducing the risk of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the vacuum pump of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the pressure relief box of the present invention;

[0027] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0028] Figure 5 It is a schematic diagram of the structure of the activated carbon box of the present invention;

[0029] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0030] Figure 7It is a schematic diagram of the ground wire structure of the present invention;

[0031] Figure 8 It is a flow chart of the central control system of the present invention.

[0032] Among them, 1. main pipeline; 2. secondary pipeline; 3. connecting flange; 4. pressure relief component; 401. pressure sensor; 402. sleeve; 403. electric push rod 1; 404. float; 405. sealing ring; 406. pressure relief box; 407. one-way valve; 408. vacuum pump; 5. anti-leakage component; 501. gas sensor; 502. vibration sensor; 503. solenoid valve 1; 504. solenoid valve 2; 6. adsorption component; 601. activated carbon box; 602. cover; 603. electric push rod 2; 604. slider; 605. slide; 7. anti-static component; 701. wiring card; 702. grounding wire; 703. grounding body; 704. insulating gasket. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0034] Please see attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a natural gas pipeline intelligent sensing explosion-proof device, including a main pipeline 1 and two secondary pipelines 2. The proximal ends of the main pipeline 1 and the secondary pipelines 2 are provided with a connecting flange 3. The main pipeline 1 and the secondary pipeline 2 are connected through the connecting flange 3. A pressure relief component 4 is provided inside the main pipeline 1. The pressure relief component 4 includes a pressure sensor 401. The pressure sensor 401 is installed inside the main pipeline 1. A sleeve 402 is fixedly connected to the top of the main pipeline 1. An electric push rod 403 is fixedly connected to the inside of the sleeve 402. The output end of the electric push rod 403 is fixedly connected to the output end of the electric push rod 403. A float 404 is fixedly connected, the interior of the sleeve 402 is slidably connected to the exterior of the float 404, a sealing ring 405 is fixedly connected to the exterior of the float 404, a pressure relief box 406 is fixedly connected to the top of the main pipeline 1, the interior of the sleeve 402 is connected to the interior of the pressure relief box 406 through a connecting pipe, a one-way valve 407 is provided inside the connecting pipe, a vacuum pump 408 is fixedly connected to the exterior of the pressure relief box 406, the interior of the pressure relief box 406 is connected to the input end of the vacuum pump 408 through a pipe, and the output end of the vacuum pump 408 is connected to the interior of the main pipeline 1 through a pipe.

[0035] Specifically, the main pipeline 1 is the main part of the device, which is connected to the two secondary pipelines 2 through the connecting flange 3 to form the key part of the pipeline system. The design of the connecting flange 3 ensures the stable connection between the main pipeline 1 and the secondary pipeline 2, avoiding the loosening or leakage of the joints caused by gas pressure fluctuations or external factors; the core function of the pressure relief component 4 is to ensure that the pipeline can discharge excess gas in time when the pressure is too high to prevent the pipeline from rupture or explosion; the pressure sensor 401 is installed inside the main pipeline 1 to monitor the gas pressure in the pipeline in real time; when the pressure sensor 401 detects abnormal gas pressure, the electric The push rod 403 drives the float 404 to rise, triggering the pressure relief box 406 to open through mechanical action; the float 403 floats in the sleeve 402, playing the role of opening the pressure relief box 406, and the sealing ring 405 ensures the air tightness between the float 403 and the sleeve 402 to avoid leakage; the gas in the pressure relief box 406 is connected to the vacuum pump 408 through the connecting pipe, and the vacuum pump 408 can transport the natural gas in the pressure relief box 406 back to the main pipeline 1 through the suction effect, and keep the pressure relief box 406 in a negative pressure state. At the same time, the one-way valve 407 is installed in the connecting pipe to ensure that the gas flows in the correct direction during pressure relief to prevent gas backflow.

[0036] Please see attached Figure 1 and attached Figure 2 An anti-leakage component 5 is arranged outside the main pipeline 1 and the secondary pipeline 2. The anti-leakage component 5 includes a gas sensor 501. The gas sensor 501 is installed on the upper side of the outside of the main pipeline 1. A vibration sensor 502 is installed on the lower side of the outside of the main pipeline 1. A solenoid valve 1 503 is arranged on the right side of the main pipeline 1, and a solenoid valve 2 504 is arranged on the right side of the secondary pipeline 2.

[0037] Specifically, the anti-leakage component 5 is designed to detect and respond to gas leakage in the pipeline; the gas sensor 501 is installed on the upper side of the outside of the main pipeline 1 to monitor in real time whether there is natural gas leakage outside the pipeline. When the gas concentration exceeds the standard, the gas sensor 501 sends data to the central control system for alarm processing; the vibration sensor 502 is installed on the lower side of the outside of the main pipeline 1 to monitor whether the pipeline has abnormal vibration. The abnormal vibration may be caused by external impact on the pipeline or internal pressure fluctuations. Once the vibration exceeds the set threshold, the system will take response measures; the function of solenoid valve 1 503 and solenoid valve 2 504 is to control the circulation of gas. When a leak occurs, solenoid valve 1 503 and solenoid valve 2 504 will automatically close the corresponding pipeline section, cut off the gas flow, and prevent the leak from expanding.

[0038] Please see attached Figure 2 , Attachment Figure 5 and attached Figure 6A plurality of adsorption components 6 are arranged outside the main pipeline 1, and the adsorption components 6 include an activated carbon box 601, which is fixedly connected to the outside of the main pipeline 1, and the top of the activated carbon box 601 is rotatably connected to a cover body 602, and the left and right sides of the inside of the activated carbon box 601 are fixedly connected to electric push rods 603, and the output end of the electric push rods 603 is rotatably connected to a slider 604, and the left and right sides of the bottom of the cover body 602 are provided with slide grooves 605, and the outside of the slider 604 is slidably connected to the inside of the slide groove 605.

[0039] Specifically, the adsorption component 6 is designed to further prevent gas diffusion during pipeline leakage and enhance the safety of the explosion-proof device; the activated carbon box 601 is fixed to the outside of the main pipeline 1 to adsorb and remove leaked natural gas. Due to its large specific surface area and good adsorption performance, activated carbon can effectively absorb and reduce the concentration of gas leaked from the pipeline; the electric push rod 603 is used to control the switching state of the activated carbon box 601. When a leak is detected, the electric push rod 603 will drive the slider 604 to move, push the cover 602 to open the activated carbon box 601, and ensure that it fully adsorbs the leaked gas; the cover 602 is connected to the slider 604 through the slide groove 605, which can realize the opening and closing function of the activated carbon box 601. The design of the slide groove 605 enables the cover 602 to be quickly opened when gas leaks, thereby increasing the adsorption effect.

[0040] Please see attached Figure 1 , Attachment Figure 3 and attached Figure 7 An anti-static component 7 is arranged on the outside of the main pipeline 1; the anti-static component 7 includes two wiring cards 701, and the two wiring cards 701 are respectively fixedly connected to the left and right sides of the bottom of the main pipeline 1, and a grounding wire 702 is fixedly connected to the bottom of the wiring card 701, and a grounding body 703 is fixedly connected to the adjacent side of the two grounding wires 702, and an insulating gasket 704 is arranged at the connection of the connecting flange 3.

[0041] Specifically, the function of the anti-static component 7 is to prevent gas explosions caused by static electricity accumulation on the pipeline surface; the wiring card 701 is fixed on both sides of the main pipeline 1, and the main pipeline 1 is grounded through the grounding wire 702. The grounding wire 702 ensures that excess static electricity on the pipeline surface can be effectively released, preventing sparks caused by static electricity accumulation and reducing the risk of explosion; the grounding body 703 is connected to the grounding wire 702 to provide a more stable grounding channel to ensure that static electricity on the pipeline surface is promptly discharged; the insulating gasket 704 is installed at the connection of the connecting flange 3 to play an isolation role to prevent static electricity from being transmitted through the pipeline connection and ensure the safety of the pipeline.

[0042] Please see attached Figure 8The pressure sensor 401, the gas sensor 501 and the vibration sensor 502 transmit the collected data to the central control system. The central control system includes: an acquisition module: which is used to transmit the data collected by the pressure sensor 401, the gas sensor 501 and the vibration sensor 502 to the central control system; an analysis module: which analyzes the data collected in the central control system through a data processing unit; a driving module: which drives the electric push rod 403, the vacuum pump 408, the solenoid valve 503, the solenoid valve 504 and the electric push rod 603 through the analyzed information.

[0043] Specifically, the central control system is the core control unit of the device, which is responsible for collecting sensor data and analyzing and processing it; the acquisition module is used to receive real-time data from the pressure sensor 401, the gas sensor 501 and the vibration sensor 502; the analysis module analyzes the collected data through the data processing unit to identify potential dangers or abnormal conditions, such as excessive pressure, gas leakage or abnormal vibration; the drive module controls the electric push rod 1 403 and the vacuum pump 408 in the pressure relief component 4, the electric push rod 2 603 in the adsorption component 6, the solenoid valves 503 and 504, etc. to respond according to the analysis results to ensure the safe operation of the pipeline system.

[0044] Working principle: First, the main pipeline 1 is monitored by the pressure sensor 401, the gas sensor 501 and the vibration sensor 502;

[0045] Secondly, when the pressure in the main pipeline 1 is too high, the electric push rod 403 is started to drive the float 404 to rise, so that the main pipeline 1 and the pressure relief box 406 are connected through the connecting pipe, and the pressure relief box 406 is in a negative pressure state, so that the natural gas in the main pipeline 1 can enter the pressure relief box 406, and the output of the gas source is reduced. After the pressure is normal, the vacuum pump 408 is started to allow the natural gas in the pressure relief box 406 to return to the main pipeline 1, and the pressure relief box 406 returns to a negative pressure state;

[0046] In addition, when the main pipeline 1 is hit or otherwise causes a natural gas leak, the pipeline is cut off by starting the solenoid valve 1 503 and the solenoid valve 2 504 to prevent the leakage from expanding. At the same time, the electric push rod 2 603 is started to operate, thereby driving the slider 604 to move upward in the slide groove 605, thereby driving the cover 602 to open, and the activated carbon in the activated carbon box 601 absorbs the leaked natural gas;

[0047] Finally, the main pipeline 1 is connected to the wiring card 701, so that the static electricity outside the main pipeline 1 can be released through the grounding wire 702 and the grounding body 703, and the insulating gasket 704 between the connecting flanges 3 prevents static electricity from entering the pipeline through the connection, thereby minimizing the risk of pipeline explosion and leakage and improving the safety and stability of the natural gas transportation process.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas pipeline intelligent sensing explosion-proof device, comprising a main pipeline (1) and two secondary pipelines (2), characterized in that: A pressure relief component (4) is arranged inside the main pipeline (1), anti-leakage components (5) are arranged outside the main pipeline (1) and the secondary pipeline (2), a plurality of adsorption components (6) are arranged outside the main pipeline (1), and an anti-static component (7) is arranged outside the main pipeline (1); The pressure relief assembly (4) comprises a pressure sensor (401), wherein the pressure sensor (401) is installed inside the main pipeline (1), the top end of the main pipeline (1) is fixedly connected to a sleeve (402), the inside of the sleeve (402) is fixedly connected to an electric push rod 1 (403), the output end of the electric push rod 1 (403) is fixedly connected to a float (404), the outside of the float (404) is fixedly connected to a sealing ring (405), the top end of the main pipeline (1) is fixedly connected to a pressure relief box (406), and the outside of the pressure relief box (406) is fixedly connected to a vacuum pump (408).

2. According to claim 1, a natural gas pipeline intelligent sensing explosion-proof device is characterized in that: The anti-leakage component (5) comprises a gas sensor (501), the gas sensor (501) is installed on the upper side of the outside of the main pipeline (1), a vibration sensor (502) is installed on the lower side of the outside of the main pipeline (1), a solenoid valve 1 (503) is arranged on the right side of the main pipeline (1), and a solenoid valve 2 (504) is arranged on the right side of the secondary pipeline (2).

3. The natural gas pipeline intelligent sensing explosion-proof device according to claim 1 is characterized in that: The adsorption component (6) comprises an activated carbon box (601), wherein the activated carbon box (601) is fixedly connected to the outside of the main pipeline (1), the top of the activated carbon box (601) is rotatably connected to a cover body (602), the inside of the activated carbon box (601) is fixedly connected to an electric push rod 2 (603) on both left and right sides, the output end of the electric push rod 2 (603) is rotatably connected to a slider (604), and the bottom of the cover body (602) is provided with a slide groove (605) on both left and right sides.

4. The natural gas pipeline intelligent sensing explosion-proof device according to claim 1 is characterized in that: A connecting flange (3) is provided at the proximal ends of the main pipeline (1) and the secondary pipeline (2), and the main pipeline (1) and the secondary pipeline (2) are connected via the connecting flange (3).

5. The natural gas pipeline intelligent sensing explosion-proof device according to claim 4 is characterized in that: The antistatic component (7) comprises two wiring cards (701), the two wiring cards (701) are respectively fixedly connected to the left and right sides of the bottom of the main pipeline (1), the bottom of the wiring card (701) is fixedly connected to a grounding wire (702), the adjacent sides of the two grounding wires (702) are fixedly connected to a grounding body (703), and an insulating gasket (704) is provided at the connection of the connection flange (3).

6. The natural gas pipeline intelligent sensing explosion-proof device according to claim 1 is characterized in that: The interior of the sleeve (402) is slidably connected to the exterior of the float (404), and the interior of the sleeve (402) is connected to the interior of the pressure relief tank (406) via a connecting pipe, wherein a one-way valve (407) is provided inside the connecting pipe.

7. The natural gas pipeline intelligent sensing explosion-proof device according to claim 1 is characterized in that: The interior of the pressure relief box (406) is connected to the input end of the vacuum pump (408) via a pipeline, and the output end of the vacuum pump (408) is connected to the interior of the main pipeline (1) via a pipeline.

8. The natural gas pipeline intelligent sensing explosion-proof device according to claim 3 is characterized in that: The outside of the sliding block (604) is slidably connected to the inside of the sliding groove (605).

9. The natural gas pipeline intelligent sensing explosion-proof device according to claim 2 is characterized in that: The pressure sensor (401), the gas sensor (501) and the vibration sensor (502) transmit the collected data to the central control system.

10. The natural gas pipeline intelligent sensing explosion-proof device according to claim 9, characterized in that: The central control system comprises: Acquisition module: used for transmitting data collected by the pressure sensor (401), the gas sensor (501) and the vibration sensor (502) to the central control system; Analysis module: It analyzes the data collected in the central control system through the data processing unit; Driving module: It drives electric push rod 1 (403), vacuum pump (408), solenoid valve 1 (503), solenoid valve 2 (504) and electric push rod 2 (603) through the analyzed information.

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