A high-pressure gas diffusion real-time monitoring system based on a collecting pipe

Abstract

The application provides a high-pressure gas diffusion real-time monitoring system based on a collecting pipe, relates to the technical field of gas transmission and distribution safety monitoring, and comprises a collecting pipe arranged on a cement platform, diffusion monitoring valves vertically installed on each diffusion point of the collecting pipe through a pipeline connection assembly; a signal transmission controller arranged in a protection box near the collecting pipe and electrically connected with the diffusion monitoring valves through a signal line; a pressure sensor installed on the pipeline of the collecting pipe and electrically connected with the signal transmission controller through a signal line; and the signal transmission controller can transmit the switch quantity signal of the received diffusion monitoring valve and the pressure signal of the pressure sensor to a remote monitoring platform through a wireless network. The application directly senses the diffusion flow through the vertically installed monitoring valve, combines the synchronous signal of the pressure sensor, and transmits to the remote platform through the wireless network, so that rapid, reliable and redundant monitoring of high-pressure diffusion is realized, and the safety level of the station is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of gas transmission and distribution safety monitoring technology, and more specifically, to a real-time monitoring system for high-pressure gas venting based on a manifold. Background Technology

[0002] As the core hub of the urban gas transmission and distribution system, the safe and stable operation of gas stations is crucial. In high-pressure gas stations, centralized venting manifolds are typically installed to ensure safety in case of system overpressure, allowing for the safe release of gas in emergency situations. However, current monitoring methods for the venting process remain relatively outdated, posing numerous technical bottlenecks and safety hazards.

[0003] Currently, most monitoring stations still rely on manual inspections or simple pressure tests, resulting in problems such as monitoring lag, high false alarm rates, and untimely responses. Especially under high-pressure conditions, existing monitoring equipment is difficult to operate stably and cannot achieve multi-point, redundant, and real-time monitoring, posing safety hazards. In addition, the main body of the manifold is only installed on the ground with cement; if a foreign object impacts the manifold, it will be damaged. Utility Model Content

[0004] The purpose of this utility model is to address the problems of existing high-pressure gas venting real-time monitoring systems based on manifolds, which cannot achieve multi-point, redundant, and real-time monitoring, pose safety hazards, and are easily damaged by collisions with external objects.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A real-time monitoring system for high-pressure gas venting based on a manifold includes a manifold installed on a concrete platform, and further includes:

[0007] A venting monitoring valve, wherein the venting monitoring valve is vertically installed at each venting point of the manifold via a pipe connection assembly;

[0008] The signal transmission controller is installed in a protective box near the manifold and is electrically connected to the vent monitoring valve via a signal line;

[0009] At least one pressure sensor is installed on the pipeline of the manifold and electrically connected to a signal transmission controller via a signal line; wherein, the signal transmission controller is capable of transmitting the received on / off signal of the vent monitoring valve and the pressure signal of the pressure sensor to a remote monitoring platform via a wireless network;

[0010] The protective mechanism includes a shielding component installed on a cement platform to protect the bottom of the manifold and a stress-relief component installed on the shielding component to protect the manifold body.

[0011] As a preferred technical solution of this application, the pipe connection assembly includes:

[0012] The first ball valve, the inlet end of the first ball valve is connected to the vent of the manifold through a four-way connector;

[0013] A straight connecting pipe is provided, the inlet end of which is connected to the outlet end of the first ball valve;

[0014] The inlet end of the venting monitoring valve is connected to the outlet end of the connecting straight pipe via an elbow joint so that the axis of the venting monitoring valve is perpendicular to the axis of the manifold.

[0015] As a preferred technical solution of this application, the pressure sensor is installed on another interface of the four-way connector via a reducing connector.

[0016] As a preferred technical solution of this application, the signal line led out from the venting monitoring valve and the pressure sensor is laid along the back of the manifold and connected to the signal transmission controller inside the protective box.

[0017] As a preferred technical solution of this application, the shielding component includes a shielding frame, a positioning plate disposed at the bottom of the shielding frame, and a slot opened at the top edge of the cement platform and cooperating with the positioning plate.

[0018] As a preferred technical solution of this application, the shielding component further includes positioning bolts, and the side wall of the cement platform and the side wall of the positioning insert plate are provided with fixing holes that communicate with each other and cooperate with the positioning bolts.

[0019] As a preferred technical solution of this application, the force-relieving component includes a lower support platform disposed on the top of the shielding frame, a plurality of rotating shafts equidistantly mounted on the lower support platform, a rubber cylinder sleeved on the outside of the rotating shafts, and an upper support platform disposed on the top of the rotating shafts.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. By employing a dedicated high-pressure (≥100 bar) venting monitoring valve with an optimized activation flow threshold (≥400 L / h) for high-pressure manifold environments, the system effectively distinguishes between normal leakage and abnormal venting, solving the problem of delayed response in traditional pressure monitoring or manual inspection. The system can upload the signal to a remote platform within 2 seconds of venting triggering, achieving true real-time early warning and enabling real-time and accurate monitoring of high-pressure venting conditions.

[0022] 2. By vertically installing monitoring valves at multiple venting points and combining them with pressure sensors at key manifold nodes, the system establishes a dual early warning mechanism for both on / off monitoring and pressure change monitoring. This multi-point coverage and signal redundancy design improves the system's reliability and fault tolerance. Even if a single monitoring point fails, the entire system can still operate effectively, avoiding monitoring blind spots and thus constructing a multi-layered, redundant safety monitoring network.

[0023] 3. After the manifold is laid on the ground through the cement platform, the shielding frame is inserted into the positioning slot on the cement platform through the set shielding components. At this time, several rubber cylinders on the top of the shielding frame will also surround the pipe body. Therefore, the shielding frame can block the lower part of the manifold. When an external object collides with the upper part of the manifold, the external object can be quickly rolled away from the manifold by rotating the set rubber cylinders, thereby protecting the manifold. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the system of this utility model;

[0025] Figure 2 This is a diagram of the manifold installation structure of this utility model;

[0026] Figure 3 This is a partially disassembled structural diagram of the present invention;

[0027] Figure 4 This is a structural diagram of the shielding component and the force-relieving component of this utility model.

[0028] The image shows:

[0029] 1. Cement platform; 101. Slot; 102. Fixing hole; 2. Manifold; 3. Sheltering component; 301. Sheltering frame; 302. Positioning insert plate; 303. Positioning bolt; 4. Force-relieving component; 401. Lower support platform; 402. Rotating shaft; 403. Rubber cylinder; 404. Upper support platform. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0031] like Figures 1 to 2As shown, this embodiment proposes a real-time monitoring system for high-pressure gas venting based on a manifold. The system includes a manifold 2 mounted on a cement platform 1, a venting monitoring valve, a signal transmission controller, a pressure sensor, and a protective mechanism. The venting monitoring valve is vertically installed at each venting point of the manifold 2 via a pipe connection assembly. The signal transmission controller is located in a protective box near the manifold 2 and is electrically connected to the venting monitoring valve via a signal line. At least one pressure sensor is installed on the pipeline of the manifold 2 and is electrically connected to the signal transmission controller via a signal line. The signal transmission controller can transmit the received on / off signals from the venting monitoring valve and the pressure signals from the pressure sensor to a remote monitoring platform via a wireless network. The signal transmission controller is an ESL-T controller, and the wireless network is a 4G or 5G mobile communication network. The venting monitoring valve is a BLD211 type venting monitoring valve with a starting flow rate greater than or equal to 400 liters / hour. The protective mechanism includes a shielding component 3 mounted on the cement platform 1 to protect the bottom of the manifold 2, and a stress-relief component 4 mounted on the shielding component 3 to protect the body of the manifold 2.

[0032] When the pressure in the manifold rises abnormally and reaches the venting setpoint, the gas will be discharged through the venting pipeline. At this time, the gas flow rate through the venting monitoring valve increases rapidly. When the instantaneous flow rate exceeds the preset start-up flow rate of the venting monitoring valve, such as the BLD211 model, ≥400 L / h, the internal mechanical structure of the valve is displaced under the action of airflow, directly triggering a highly reliable switching signal, i.e., an "on" or "off" signal. This signal indicates that a venting event has physically occurred. Almost simultaneously, the pressure sensor installed on the manifold monitors the pressure change in the pipeline in real time and transmits a continuous analog pressure signal to the signal transmission controller. The signal transmission controller, such as the ESL-T controller, acts as the "brain" of the field, simultaneously receiving the switching signal from the venting monitoring valve and the pressure signal from the pressure sensor. After preliminary processing of the signals, the controller packages these two types of data through the built-in 4G / 5G wireless communication module and uploads them in real time to the remote monitoring platform. Upon receiving the signal, the remote monitoring platform immediately performs data analysis and judgment. The system can be configured with multiple alarm strategies, such as: 1. Upon receiving a switch signal from the venting monitoring valve, immediately trigger the highest-level venting alarm. 2. Perform dual verification using pressure sensor data to effectively distinguish between actual venting and false triggering. The platform then notifies management personnel via sound, light, and SMS, achieving a response time within seconds. Therefore, the system, based on direct mechanical action triggering the switch signal, has a much faster response time than systems relying solely on slow pressure changes, issuing an alarm within 2 seconds of venting commencement, thus gaining valuable time for emergency response. Furthermore, the switch signal itself has strong anti-interference capabilities and simple logic, making it more stable than analog signals. Combined with dual verification of the pressure signal, this constitutes a main alarm plus auxiliary verification mechanism, reducing the system's false alarm rate to below 0.5%. Uploading key data to the cloud platform via wireless network changes the traditional reliance on manual on-site confirmation, achieving unmanned, remote, and intelligent venting management at the site, significantly improving safety management efficiency and level. It should be noted that when a foreign object collides with the manifold, the shielding component can protect the lower part of the manifold, while the stress-relieving component can cause the foreign object that collides with the upper part of the manifold to roll away from the manifold quickly, thereby protecting the main body of the manifold.

[0033] like Figure 1 As shown, in a preferred embodiment, based on the above method, the pipeline connection assembly further includes a first ball valve and a connecting straight pipe. The inlet end of the first ball valve is connected to the vent of the manifold 2 via a four-way connector, and the inlet end of the connecting straight pipe is connected to the outlet end of the first ball valve. The inlet end of the vent monitoring valve is connected to the outlet end of the connecting straight pipe via an elbow connector so that the axis of the vent monitoring valve is perpendicular to the axis of the manifold 2.

[0034] This connection assembly creates a stable, vertical monitoring flow path at the vent of manifold 2. When gas is released from manifold 2, the gas flow sequentially through the four-way connector, the first ball valve, the connecting straight pipe, and the elbow connector, finally flowing vertically upwards through the vent monitoring valve. This vertical installation ensures that the valve core can directly and fully sense the vented gas flowing towards the atmosphere, thereby accurately triggering its internal mechanical action. This structure effectively avoids the deposition of pipeline impurities in the monitoring valve through vertical installation, and achieves online isolation and maintenance functions through the first ball valve. The four-way connector provides an integrated interface for the pressure sensor without affecting the main flow, forming a stable, reliable, and easy-to-maintain monitoring and sampling unit.

[0035] Furthermore, the pressure sensor is installed on another port of the four-way connector via a reducer. During the venting process, pressure fluctuations within the manifold are directly sensed by the pressure sensor through an unused port of the four-way connector and the reducer. This sensor converts the real-time pressure into an electrical signal and transmits it to the signal transmission controller. This installation method seamlessly integrates pressure monitoring into the venting channel without requiring additional pressure measurement ports, simplifying the system structure while ensuring the homogeneity and synchronization of pressure data with venting events.

[0036] Furthermore, the connecting straight pipe is a 15 cm long double-threaded straight pipe. This 15 cm long double-threaded straight pipe serves as a standardized connecting pipe, with its two ends securely connected to the first ball valve below and the elbow joint above via threads, forming a stable and dimensionally defined flow channel between the vent monitoring valve and the main line, ensuring that the gas flows smoothly towards the monitoring valve.

[0037] In addition, a second ball valve is installed on the original venting line of the manifold, before the four-way connector. This second ball valve is installed on the original line between the manifold and the four-way connector, serving as the first isolation valve for the entire venting branch. When performing system maintenance, replacing or debugging downstream monitoring components, this valve can be closed to safely isolate the monitoring system from the high-pressure main line without affecting the normal operation of the manifold and its original venting function.

[0038] Furthermore, the signal lines from the venting monitoring valve and pressure sensor are laid along the back of manifold 2 and connected to the signal transmission controller inside the protective box. When laid on the manifold 2's support or bracket, the signal lines from the venting monitoring valve and pressure sensor are specifically planned and fixed to the back of manifold 2, and then centrally routed through conduits or along cable trays to the signal transmission controller inside the protective box. This cabling scheme provides a protected physical path for the signal lines, effectively preventing cable damage caused by personnel stepping on them, tools bumping into them, or accidental vehicle collisions, while also reducing electromagnetic interference to some extent.

[0039] like Figures 2 to 4 As shown, in a preferred embodiment, based on the above method, the shielding component 3 further includes a shielding frame 301, a positioning insert plate 302 disposed at the bottom of the shielding frame 301, and a slot 101 opened at the top edge of the cement platform 1 and cooperating with the positioning insert plate 302; the shielding component 3 also includes a positioning bolt 303, and the side wall of the cement platform 1 and the side wall of the positioning insert plate 302 are provided with fixing holes 102 that communicate with each other and cooperate with the positioning bolt 303.

[0040] After the manifold 2 is laid on the ground via the cement platform 1, the positioning plate 302 at the bottom of the shield 301 can be inserted into the positioning slot 101 at the top of the cement platform 1 to install the shield 301 on the lower periphery of the manifold 2. In addition, the positioning bolt 303 can be passed through the fixing holes 102 on the cement platform 1 and the positioning plate 302 to lock the shield 301 again, thereby improving the stability of the shield 301. Therefore, the lower part of the manifold 2 can be shielded and protected to prevent foreign objects from directly impacting the manifold 2.

[0041] like Figures 2 to 4 As shown, in a preferred embodiment, based on the above method, the force-relieving component 4 further includes a lower support platform 401 disposed on the top of the shielding frame 301, a plurality of rotating shafts 402 equidistantly mounted on the lower support platform 401, a rubber cylinder 403 sleeved on the outside of the rotating shafts 402, and an upper support platform 404 disposed on the top of the rotating shafts 402.

[0042] After the shielding frame 301 is installed, several rubber cylinders 403 between the lower support platform 401 and the upper support platform 404 are distributed on the outside of the upper pipe body of the manifold 2. This not only provides shielding and protection for the upper part of the manifold 2, but also, if an external object touches the rubber cylinder 403, the friction force of the rubber cylinder 403 will cause it to rotate through the rotating shaft 402. Therefore, the external object will roll away from the manifold 2 along the rubber cylinder 403, thereby improving the protection effect of the manifold 2.

[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A real-time monitoring system for high-pressure gas venting based on a manifold, comprising a manifold (2) installed on a cement platform (1), characterized in that, Also includes: Venting monitoring valves are vertically installed at each venting point of the manifold (2) via pipe connection assemblies; The signal transmission controller is located in a protective box near the manifold (2) and is electrically connected to the venting monitoring valve via a signal line; At least one pressure sensor is installed on the pipeline of the manifold (2) and electrically connected to the signal transmission controller via a signal line; wherein the signal transmission controller is able to transmit the received switch signal of the venting monitoring valve and the pressure signal of the pressure sensor to the remote monitoring platform via a wireless network; The protective mechanism includes a shielding component (3) installed on the cement platform (1) to protect the bottom of the manifold (2) and a stress-relief component (4) installed on the shielding component (3) to protect the body of the manifold (2).

2. The real-time monitoring system for high-pressure gas venting based on a manifold as described in claim 1, characterized in that, The pipe connection assembly includes: The first ball valve, the inlet end of the first ball valve is connected to the vent of the manifold (2) through a four-way connector; A straight connecting pipe is provided, the inlet end of which is connected to the outlet end of the first ball valve; The inlet end of the venting monitoring valve is connected to the outlet end of the connecting straight pipe via an elbow joint so that the axis of the venting monitoring valve is perpendicular to the axis of the manifold (2).

3. The real-time monitoring system for high-pressure gas venting based on a manifold as described in claim 1, characterized in that, The pressure sensor is mounted on another port of the four-way connector via a reducing fitting.

4. The real-time monitoring system for high-pressure gas venting based on a manifold as described in claim 1, characterized in that, The signal lines from the venting monitoring valve and the pressure sensor are laid along the back of the manifold (2) and connected to the signal transmission controller inside the protective box.

5. The real-time monitoring system for high-pressure gas venting based on a manifold as described in claim 1, characterized in that, The shielding component (3) includes a shielding frame (301), a positioning plate (302) disposed at the bottom of the shielding frame (301), and a slot (101) opened at the top edge of the cement platform (1) and cooperating with the positioning plate (302).

6. The real-time monitoring system for high-pressure gas venting based on a manifold as described in claim 5, characterized in that, The shielding component (3) also includes a positioning bolt (303), and the side wall of the cement platform (1) and the side wall of the positioning insert plate (302) are provided with fixing holes (102) that are interconnected and cooperate with the positioning bolt (303).

7. The real-time monitoring system for high-pressure gas venting based on a manifold as described in claim 5, characterized in that, The unloading component (4) includes a lower support platform (401) set on the top of the shielding frame (301), several rotating shafts (402) equidistantly mounted on the lower support platform (401), a rubber cylinder (403) sleeved on the outside of the rotating shafts (402), and an upper support platform (404) set on the top of the rotating shafts (402).

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