Gas monitoring alarm system

Abstract

The utility model discloses a gas monitoring alarm system. The gas monitoring alarm system comprises a monitoring module and a control alarm module. The monitoring module comprises a plurality of combustible gas monitoring units, a toxic and harmful gas monitoring unit and an oxygen monitoring unit; the combustible gas monitoring units are arranged at the top of the oil-gas pipeline tunnel at intervals, the toxic and harmful gas monitoring units are arranged at the bottom of the oil-gas pipeline tunnel at intervals, and the oxygen monitoring units are arranged on the side wall of the oil-gas pipeline tunnel at intervals; the monitoring module is used for monitoring the concentration of combustible gas, toxic and harmful gas and oxygen at a plurality of positions in the oil and gas pipeline tunnel; and the control alarm module is used for sending an alarm signal when the concentration of any one of the combustible gas, the toxic and harmful gas and the oxygen at any position in the oil and gas pipeline tunnel reaches a corresponding threshold value. According to the utility model, oil-gas leakage and oil-gas leakage positions in the oil-gas pipeline tunnel can be found in time, so that the safety of personnel entering the oil-gas pipeline tunnel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring technology, and in particular to a gas monitoring alarm system. Background Technology

[0002] In recent years, the construction of oil and gas pipelines has been growing at a rapid pace. Due to factors such as the large undulations in mountainous terrain and the controllable pipeline routes, it is inevitable to build bridges and tunnels during the pipeline construction process.

[0003] Current oil and gas pipeline leak monitoring primarily focuses on high-risk locations such as stations and valve chambers, leaving the concentration and composition of leaked oil and gas, as well as toxic and harmful gases, within dedicated oil and gas pipeline tunnels as a blind spot. Because oil and gas tunnels may contain various toxic and harmful gases and leaked oil and gas, and require annual inspections, personnel conducting inspections without knowing the gas composition within the tunnels are highly susceptible to accidents. Therefore, existing oil and gas pipeline leak monitoring technologies cannot effectively guarantee the safety of personnel entering oil and gas pipeline tunnels for inspection. Utility Model Content

[0004] This invention provides a gas monitoring and alarm system to promptly detect oil and gas leaks in oil and gas pipeline tunnels and accurately locate the leaks, thereby ensuring the safety of personnel entering the tunnels.

[0005] In a first aspect, this utility model provides a gas monitoring and alarm system, which is installed in an oil and gas pipeline tunnel, where oil and gas pipelines are laid, and the system includes a monitoring module and a control and alarm module.

[0006] The monitoring module is connected to the control and alarm module. The monitoring module includes multiple combustible gas monitoring units, toxic and harmful gas monitoring units, and oxygen monitoring units. The combustible gas monitoring units are spaced apart at the top of the oil and gas pipeline tunnel, the toxic and harmful gas monitoring units are spaced apart at the bottom of the oil and gas pipeline tunnel, and the oxygen monitoring units are spaced apart on the sidewalls of the oil and gas pipeline tunnel. The monitoring module monitors the concentrations of combustible gases, toxic and harmful gases, and oxygen at multiple locations within the oil and gas pipeline tunnel and sends the data to the control and alarm module. The combustible gases include methane and carbon monoxide, and the toxic and harmful gases include hydrogen sulfide, isobutane, and carbon dioxide.

[0007] The control alarm module is used to issue an alarm signal when the concentration of any one of the combustible gas, the toxic and harmful gas, and oxygen at any location in the oil and gas pipeline tunnel reaches the corresponding threshold.

[0008] Optionally, multiple combustible gas monitoring units, toxic and harmful gas monitoring units, and oxygen monitoring units are all connected to the control alarm module;

[0009] The interval between adjacent combustible gas monitoring units is a first preset distance; the combustible gas monitoring unit is used to monitor the concentration of the combustible gas and send it to the control alarm module;

[0010] Multiple toxic and harmful gas monitoring units are spaced apart at a first preset height above the ground at the bottom of the oil and gas pipeline tunnel, and the interval between adjacent toxic and harmful gas monitoring units is a second preset distance; the toxic and harmful gas monitoring units are used to monitor the concentration of the toxic and harmful gases and send the data to the control alarm module.

[0011] Multiple oxygen monitoring units are spaced apart on the sidewall of the oil and gas pipeline tunnel at positions between a second and a third preset height from the ground, with the interval between adjacent oxygen monitoring units being a third preset distance; the oxygen monitoring units are used to monitor the oxygen concentration and send the data to the control alarm module.

[0012] Optionally, the first preset distance is 5 meters, the second preset distance is 2 meters, and the third preset distance is 10 meters; the first preset height is 0.5 meters, the second preset height is 1.5 meters, and the third preset height is 2 meters.

[0013] Optionally, the oxygen monitoring unit includes an oxygen monitoring probe, a green indicator light, a red indicator light, and an oxygen probe detection motherboard;

[0014] The oxygen monitoring probe, the green indicator light, and the red indicator light are all connected to the oxygen probe detection motherboard, which is connected to the control alarm module. The oxygen monitoring probe is used to monitor the oxygen concentration. The oxygen probe detection motherboard is used to control the red indicator light to illuminate when the oxygen concentration reaches the oxygen threshold, and to control the green indicator light to illuminate when the oxygen concentration does not reach the oxygen threshold.

[0015] The combustible gas monitoring unit includes a combustible gas monitoring probe, a green indicator light, a red indicator light, and a combustible gas probe detection motherboard;

[0016] The combustible gas monitoring probe, the green indicator light, and the red indicator light are all connected to the combustible gas probe detection motherboard, which is connected to the control alarm module. The combustible gas monitoring probe is used to monitor the concentration of the combustible gas. The combustible gas probe detection motherboard is used to control the red indicator light to illuminate when the concentration of any combustible gas reaches the threshold of the corresponding combustible gas, and to control the green indicator light to illuminate when the concentration of any combustible gas does not reach the threshold of the corresponding combustible gas.

[0017] The toxic and harmful gas monitoring unit includes a toxic and harmful gas monitoring probe, a green indicator light, a red indicator light, and a toxic and harmful gas probe detection motherboard;

[0018] The toxic and harmful gas monitoring probe, the green indicator light, and the red indicator light are all connected to the toxic and harmful gas probe detection motherboard, which is connected to the control and alarm module. The toxic and harmful gas monitoring probe is used to monitor the concentration of the toxic and harmful gas. The toxic and harmful gas probe detection motherboard is used to control the red indicator light to illuminate when the concentration of any of the toxic and harmful gases reaches the corresponding threshold, and to control the green indicator light to illuminate when the concentration of any of the toxic and harmful gases does not reach the corresponding threshold.

[0019] Optionally, the control alarm module includes a control unit, a warning light, and an alarm.

[0020] The control unit is connected to the monitoring module, the warning light, and the alarm, respectively. The warning light is used to emit an alarm light, and the alarm is used to emit an alarm sound.

[0021] The control unit is used to control the warning light and the alarm to work when the concentration of one of the combustible gas, the toxic and harmful gas and oxygen at any location in the oil and gas pipeline tunnel reaches the corresponding threshold.

[0022] Optionally, the gas monitoring and alarm system further includes a photovoltaic power supply module, which is installed outside the oil and gas pipeline tunnel. The photovoltaic power supply module is connected to the monitoring module and the control and alarm module via cables. The photovoltaic power supply module is used to convert light energy into electrical energy to power the monitoring module and the control and alarm module.

[0023] Optionally, the gas monitoring and alarm system further includes a display module;

[0024] The display module is connected to the control alarm module, and the control alarm module is also used to send the alarm information corresponding to the alarm signal to the display module, and the display module is used to display the alarm information.

[0025] Optionally, the display module includes a display screen, a mobile phone, and a computer.

[0026] Optionally, the gas monitoring and alarm system further includes a wireless signal transmission module;

[0027] The wireless signal transmission module is installed at the entrance of the oil and gas pipeline tunnel. The wireless signal transmission module is communicatively connected to the display module and the control alarm module, respectively. The wireless signal transmission module is used to establish a remote communication connection between the display module and the control alarm module.

[0028] Optionally, the gas monitoring and alarm system further includes a rack, on which both the monitoring module and the control and alarm module are mounted.

[0029] This invention provides a gas monitoring and alarm system installed in oil and gas pipeline tunnels. The system includes a monitoring module and a control and alarm module. The monitoring module is connected to the control and alarm module. The monitoring module includes multiple combustible gas monitoring units, toxic and harmful gas monitoring units, and oxygen monitoring units. The combustible gas monitoring units are spaced apart at the top of the oil and gas pipeline tunnel, the toxic and harmful gas monitoring units are spaced apart at the bottom of the tunnel, and the oxygen monitoring units are spaced apart on the sidewalls of the tunnel. The monitoring module monitors the concentrations of combustible gases, toxic and harmful gases, and oxygen at multiple locations within the oil and gas pipeline tunnel and sends the data to the control and alarm module. It detects combustible gases and toxic and harmful gases in the oil and gas in real time, and determines whether the oil and gas pipeline tunnel is suitable for personnel to enter by detecting the oxygen concentration. The control and alarm module can issue an alarm signal when the concentration of any one of the combustible gases, toxic and harmful gases, or oxygen at any location within the oil and gas pipeline tunnel reaches a corresponding threshold. This allows for timely detection of oil and gas leaks within the tunnel and accurate location of the leaks, ensuring the safety of personnel entering the tunnel and demonstrating broad application prospects. Attached Figure Description

[0030] Figure 1 A schematic diagram of the structure of a gas monitoring and alarm system provided in this embodiment of the present invention;

[0031] Figure 2 A schematic diagram of another gas monitoring and alarm system provided in this embodiment of the present invention;

[0032] Figure 3A schematic diagram of the structure of another gas monitoring and alarm system provided in this embodiment of the present utility model;

[0033] Figure 4 A schematic diagram of the structure of another gas monitoring and alarm system provided in this embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the oxygen monitoring unit provided in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the control alarm module provided in an embodiment of the present invention. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] This utility model provides a gas monitoring and alarm system. Figure 1 This is a schematic diagram of a gas monitoring and alarm system provided in an embodiment of the present invention. The gas monitoring and alarm system is installed in an oil and gas pipeline tunnel, which is laid with oil and gas pipelines, such as... Figure 1 As shown, the system includes a monitoring module 110 and a control alarm module 120.

[0038] The monitoring module 110 is connected to the control and alarm module 120. The monitoring module 110 includes multiple combustible gas monitoring units 111, toxic and harmful gas monitoring units 112, and oxygen monitoring units 113. The multiple combustible gas monitoring units 111 are spaced apart at the top of the oil and gas pipeline tunnel, the multiple toxic and harmful gas monitoring units 112 are spaced apart at the bottom of the oil and gas pipeline tunnel, and the multiple oxygen monitoring units 113 are spaced apart on the sidewalls of the oil and gas pipeline tunnel. The monitoring module 110 is used to monitor the concentration of combustible gas, toxic and harmful gas, and oxygen at multiple locations in the oil and gas pipeline tunnel and send the data to the control and alarm module 120. The combustible gas includes methane and carbon monoxide, and the toxic and harmful gas includes hydrogen sulfide, isobutane, and carbon dioxide.

[0039] The control alarm module 120 is used to issue an alarm signal when the concentration of any one of the combustible gas, toxic and harmful gas and oxygen at any location in the oil and gas pipeline tunnel reaches the corresponding threshold.

[0040] Combustible gases may include hydrogen, ethane, propane, and other flammable gases, while toxic and harmful gases may include sulfur dioxide and other toxic and harmful gases. When the concentration of combustible gases exceeds a certain threshold, it can easily lead to explosions within the oil and gas pipeline tunnel. When the concentration of toxic and harmful gases exceeds a certain threshold, it can cause poisoning of personnel entering the oil and gas pipeline tunnel. When the oxygen concentration is below a certain threshold, it can cause breathing difficulties for personnel entering the oil and gas pipeline tunnel. Therefore, the concentrations of combustible gases, toxic and harmful gases, and oxygen are crucial to the safety of personnel entering the oil and gas pipeline tunnel. Real-time monitoring of these concentrations is necessary to promptly detect oil and gas leaks within the tunnel and ensure the safety of personnel entering the tunnel. Multiple combustible gas monitoring units 111 may include sensors for detecting combustible gases, toxic and harmful gas monitoring units 112 may include sensors for detecting toxic and harmful gases, and oxygen monitoring units 113 may include sensors for detecting oxygen concentration, thereby enabling the monitoring module 110 to monitor the concentrations of combustible gases, toxic and harmful gases, and oxygen.

[0041] Specifically, the monitoring module 110 includes multiple combustible gas monitoring units 111, toxic and harmful gas monitoring units 112, and oxygen monitoring units 113. Because combustible gases, toxic and harmful gases, and oxygen have different densities, they accumulate at different locations within the oil and gas pipeline tunnel. Combustible gases have a lower density and tend to dissipate upwards into the tunnel; therefore, multiple combustible gas monitoring units 111 can be spaced out at the top of the tunnel. Toxic and harmful gases have a lower density and tend to settle at the bottom of the tunnel; therefore, multiple toxic and harmful gas monitoring units 112 can be spaced out at the bottom of the tunnel. The density of oxygen determines the location of the working personnel... To ensure the respiratory safety of personnel, and given that oxygen density falls between that of combustible and toxic gases, multiple oxygen monitoring units 113 are spaced apart on the sidewalls of the oil and gas pipeline tunnel. This allows the monitoring module 110 to monitor the concentrations of combustible gases, toxic gases, and oxygen at multiple locations within the tunnel. This arrangement of the combustible gas monitoring units 111, toxic gas monitoring units 112, and oxygen monitoring units 113 ensures more reliable and accurate information on the concentrations of combustible gases, toxic gases, and oxygen within the tunnel, reducing detection errors. Furthermore, by spaced out multiple combustible gas monitoring units 111, toxic gas monitoring units 112, and oxygen monitoring units 113, the gas concentrations at various locations within the oil and gas pipeline tunnel can be monitored, enabling accurate location of oil and gas leaks and ensuring the safety of personnel entering the tunnel.

[0042] The control alarm module 120 can issue an alarm signal when the concentration of any one of the combustible gas, toxic and harmful gas, and oxygen at any location within the oil and gas pipeline tunnel reaches the corresponding threshold. For example, when the concentration of combustible gas at a certain location is greater than the combustible gas threshold, or the concentration of toxic and harmful gas is greater than the toxic and harmful gas threshold, or the oxygen concentration is less than the oxygen threshold, the control alarm module 120 will issue an alarm signal, thereby enabling staff to promptly detect oil and gas leaks within the oil and gas pipeline tunnel, ensuring the safety of personnel entering the oil and gas pipeline tunnel, and has broad application prospects.

[0043] This utility model provides a gas monitoring and alarm system installed in an oil and gas pipeline tunnel. The system includes a monitoring module and a control and alarm module. The monitoring module is connected to the control and alarm module. The monitoring module includes multiple combustible gas monitoring units, toxic and harmful gas monitoring units, and oxygen monitoring units. The combustible gas monitoring units are spaced apart at the top of the oil and gas pipeline tunnel, and the oxygen monitoring units are spaced apart on the sidewalls of the oil and gas pipeline tunnel. The monitoring module monitors the concentrations of combustible gases, toxic and harmful gases, and oxygen at multiple locations within the oil and gas pipeline tunnel and sends the data to the control and alarm module. It detects combustible gases and toxic and harmful gases contained in the oil and gas in real time, and determines whether the oil and gas pipeline tunnel is suitable for personnel to enter by detecting the oxygen concentration. The control and alarm module can issue an alarm signal when the concentration of any of the combustible gases, toxic and harmful gases, and oxygen at any location within the oil and gas pipeline tunnel reaches a corresponding threshold, thereby promptly detecting oil and gas leaks within the oil and gas pipeline tunnel and accurately locating the leak location. This ensures the safety of personnel entering the oil and gas pipeline tunnel and has broad application prospects.

[0044] This utility model embodiment also provides another gas monitoring and alarm system. Figure 2 A schematic diagram of another gas monitoring and alarm system provided in this embodiment of the present invention is shown below. Figure 2 As shown, the gas monitoring and alarm system also includes a photovoltaic power supply module 130. The photovoltaic power supply module 130 is installed outside the oil and gas pipeline tunnel. The photovoltaic power supply module 130 is connected to the monitoring module 110 and the control and alarm module 120 via cables. The photovoltaic power supply module 130 is used to convert light energy into electrical energy to power the monitoring module 110 and the control and alarm module 120.

[0045] The photovoltaic power supply module 130 is installed outside the oil and gas pipeline tunnel, for example, the photovoltaic power supply module 130 can be installed at the entrance of the oil and gas pipeline tunnel.

[0046] Specifically, since the oil and gas pipeline tunnel is located in a mountainous area where there are typically no power lines, the power supply problem for the gas monitoring and alarm system is solved by installing photovoltaic power supply modules 130 to power the monitoring module 110 and the control and alarm module 120. The photovoltaic power supply module 130 can be a solar panel, and it includes an inverter and a DC power supply. The photovoltaic power supply module 130 converts solar energy into electrical energy, which is then converted into DC power by the inverter and supplied to the DC power supply. This DC power supply powers the monitoring module 110 and the control and alarm module 120, eliminating the need for an external power source.

[0047] Optional, such as Figure 2 As shown, the gas monitoring and alarm system also includes a display module 140; the display module 140 is connected to the control alarm module 120, and the control alarm module 120 is also used to send the alarm information corresponding to the alarm signal to the display module 140, and the display module 140 is used to display the alarm information.

[0048] Specifically, the display module 140 can be connected to the control alarm module 120 via cable or wireless signal. The control alarm module 120 can send alarm information corresponding to the alarm signal to the display module 140, and can also send real-time information on the concentration of combustible gas, toxic and harmful gas and oxygen at multiple locations in the oil and gas pipeline tunnel to the display module 140. The display module 140 can display the alarm information in real time, and can also display the real-time concentration information of combustible gas, toxic and harmful gas and oxygen at multiple locations in the oil and gas pipeline tunnel, thereby making it easier for staff to monitor the oil and gas leak situation in the oil and gas pipeline tunnel.

[0049] Optionally, the display module 140 includes a display screen, a mobile phone, and a computer.

[0050] Specifically, the display module 140 can be a display screen, a mobile phone, or a computer. The display screen can be the screen controlling the alarm module 120, thereby enabling local display. Alarm information can be displayed through the display screen, mobile phone, or computer, allowing staff to remotely receive alarm information and promptly detect oil and gas leaks in the oil and gas pipeline tunnel.

[0051] Figure 3 A schematic diagram of another gas monitoring and alarm system provided in this embodiment of the present invention is shown below. Figure 3 As shown, the gas monitoring and alarm system also includes a wireless signal transmission module 150; the wireless signal transmission module 150 is installed at the entrance of the oil and gas pipeline tunnel, and the wireless signal transmission module 150 is communicatively connected to the display module 140 and the control alarm module 120 respectively. The wireless signal transmission module 150 is used to establish a remote communication connection between the display module 140 and the control alarm module 120.

[0052] Specifically, the wireless signal transmission module 150 offers flexible networking options, enabling remote communication between the display module 140 and the control alarm module 120 via 4G / 5G mobile communication links, satellite communication, and other methods. This allows personnel not on-site at the oil and gas pipeline tunnel to remotely receive alarm information via mobile phone or computer, promptly detecting oil and gas leaks within the tunnel and taking appropriate measures. The wireless signal transmission module 150 solves the problem of transmitting communication signals to computers and mobile phones in mountainous areas without existing signal coverage, ensuring signal transmission within the oil and gas tunnel is free of loss or distortion, guaranteeing the effectiveness and stability of the transmitted signal.

[0053] like Figure 3 As shown, optionally, multiple combustible gas monitoring units 111, toxic and harmful gas monitoring units 112, and oxygen monitoring units 113 are all connected to the control alarm module 120.

[0054] The interval between adjacent combustible gas monitoring units 111 is a first preset distance; the combustible gas monitoring unit 111 is used to monitor the concentration of combustible gas and send it to the control alarm module 120;

[0055] Multiple toxic and harmful gas monitoring units 112 are spaced apart at the bottom of the oil and gas pipeline tunnel at a first preset height above the ground, and the interval between adjacent toxic and harmful gas monitoring units 112 is a second preset distance; the toxic and harmful gas monitoring units 112 are used to monitor the concentration of toxic and harmful gases and send the data to the control alarm module 120.

[0056] Multiple oxygen monitoring units 113 are spaced apart on the sidewall of the oil and gas pipeline tunnel at a position between a second and a third preset height from the ground, and the interval between adjacent oxygen monitoring units 113 is a third preset distance; the oxygen monitoring unit 113 is used to monitor the oxygen concentration and send it to the control alarm module 120.

[0057] Specifically, the lengths of the first, second, and third preset distances can be adaptively set according to the length of the oil and gas pipeline tunnel, ensuring that combustible gas monitoring units 111, toxic and harmful gas monitoring units 112, and oxygen monitoring units 113 are installed at key locations within the oil and gas pipeline tunnel. The first preset height is the most suitable height for detecting toxic and harmful gases and can be set according to the height of the oil and gas pipeline tunnel. The second to third preset heights are the most suitable heights for detecting oxygen concentration and can also be set according to the height of the oil and gas pipeline tunnel. Through the above settings, the gas concentration at various locations within the oil and gas pipeline tunnel can be monitored, and the location of oil and gas leaks within the tunnel can be accurately located, ensuring the safety of personnel entering the oil and gas pipeline tunnel.

[0058] Preferably, the first preset distance is 5 meters, the second preset distance is 2 meters, and the third preset distance is 10 meters; the first preset height is 0.5 meters, the second preset height is 1.5 meters, and the third preset height is 2 meters.

[0059] Figure 4 This is a schematic diagram of the structure of another gas monitoring and alarm system provided in this embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the oxygen monitoring unit provided in an embodiment of the present invention, as shown below. Figure 4 and Figure 5 As shown, the oxygen monitoring unit 113 includes an oxygen monitoring probe 1131, a green indicator light 1132, a red indicator light 1133, and an oxygen probe detection main board 1134.

[0060] The oxygen monitoring probe 1131, green indicator light 1132, and red indicator light 1133 are all connected to the oxygen probe detection main board 1134, which is connected to the control alarm module 120. The oxygen monitoring probe 1131 is used to monitor the oxygen concentration. The oxygen probe detection main board 1134 is used to control the red indicator light 1133 to light up when the oxygen concentration reaches the oxygen threshold, and to control the green indicator light 1132 to light up when the oxygen concentration does not reach the oxygen threshold.

[0061] Specifically, the oxygen monitoring unit 113 also includes a fixing column 1135, which facilitates fixing the oxygen monitoring unit 113 as a whole to the side wall of the oil and gas pipeline tunnel.

[0062] The structures of the combustible gas monitoring unit 111 and the toxic and harmful gas monitoring unit 112 are largely the same as those of the oxygen monitoring unit 113. The combustible gas monitoring unit 111 includes a combustible gas monitoring probe, a green indicator light, a red indicator light, and a combustible gas probe detection main board. The combustible gas monitoring probe, green indicator light, and red indicator light are all connected to the combustible gas probe detection main board, which is connected to the control and alarm module. The combustible gas monitoring probe is used to monitor the concentration of combustible gases. The combustible gas probe detection main board is used to control the red indicator light to illuminate when the concentration of any combustible gas reaches the corresponding threshold, and to control the green indicator light to illuminate when the concentration of any combustible gas does not reach the corresponding threshold.

[0063] The toxic and harmful gas monitoring unit 112 includes a toxic and harmful gas monitoring probe, a green indicator light, a red indicator light, and a toxic and harmful gas probe detection main board. The toxic and harmful gas monitoring probe, the green indicator light, and the red indicator light are all connected to the toxic and harmful gas probe detection main board, which is connected to the control and alarm module. The toxic and harmful gas monitoring probe is used to monitor the concentration of toxic and harmful gases. The toxic and harmful gas probe detection main board is used to control the red indicator light to illuminate when the concentration of any toxic and harmful gas reaches the corresponding threshold, and to control the green indicator light to illuminate when the concentration of any toxic and harmful gas does not reach the corresponding threshold.

[0064] Specifically, the oxygen monitoring probe 1131, combustible gas monitoring probe, and toxic and harmful gas monitoring probe are all encased in stainless steel explosion-proof boxes to prevent damage to these probes in the event of an explosion inside the oil and gas pipeline tunnel. The combustible gas monitoring unit 111, the toxic and harmful gas monitoring unit 112, and the oxygen monitoring unit 113 are all equipped with green and red indicator lights. This allows personnel inside the oil and gas pipeline tunnel to promptly detect the illumination of these lights and evacuate the tunnel when the red light illuminates, further ensuring the safety of personnel inside the tunnel.

[0065] Optional, such as Figure 4 As shown, the control alarm module 120 includes a control unit 121, a warning light 122, and an alarm 123; the control unit 121 is connected to the monitoring module 110, the warning light 122, and the alarm 123 respectively; the warning light 122 is used to emit an alarm light; and the alarm 123 is used to emit an alarm sound.

[0066] The control unit 121 is used to control the warning light 122 and the alarm 123 to work when the concentration of one of the combustible gas, toxic and harmful gas and oxygen at any location in the oil and gas pipeline tunnel reaches the corresponding threshold.

[0067] Specifically, the control alarm module 120 may also include a control screen 124, which displays the real-time concentrations of combustible gases, toxic and harmful gases, and oxygen at various locations within the oil and gas pipeline tunnel. This allows staff to easily observe changes in the real-time concentrations of these substances and promptly detect any dangerous situations. The control unit 121, by controlling the warning lights 122 and the alarm 123, enables staff within the oil and gas pipeline tunnel to promptly detect dangers and evacuate the tunnel, effectively ensuring the safety of personnel entering the tunnel.

[0068] Figure 6This is a schematic diagram of the control alarm module provided in an embodiment of the present invention. Optional, such as... Figure 6 As shown, the control alarm module 120 may also include an alarm speaker 125, which can be used by external personnel to issue a danger notification to inform the personnel inside the oil and gas pipeline tunnel to evacuate in time, thus further ensuring the safety of personnel entering the oil and gas pipeline tunnel.

[0069] Optional, such as Figure 4 As shown, the gas monitoring and alarm system also includes a rack 160, on which the monitoring module 110 and the control and alarm module 120 are both mounted.

[0070] Specifically, the gas monitoring and alarm system also includes a base 170, which is installed at the bottom of the frame 160 to support the frame 160, so that the frame 160 can stand upright in the oil and gas pipeline tunnel. The monitoring module 110 and the control alarm module 120 are connected through the frame 160 and the base 170, which makes it easy for staff to move and use the gas monitoring and alarm system, making the application of the gas monitoring and alarm system more flexible.

[0071] The gas monitoring and alarm system provided by this utility model is applicable to closed or semi-open oil and gas tunnels and closed oil and gas pipeline protection culverts. It can monitor and warn of leaking oil and gas and toxic and harmful gases in mountain tunnels and culverts in real time, ensuring the safety of oil and gas pipelines in tunnels and the safety of personnel entering the tunnel for inspection. It does not require a mains power supply and has multiple signal transmission methods to choose from, making it suitable for a wide range of applications in mountainous areas.

[0072] This utility model provides a gas monitoring and alarm system that can detect gas in oil and gas pipeline tunnels with a single activation. It can display and analyze data locally, operate independently for 24 hours, and display and upload numerical information in real time. This allows for timely detection of oil and gas leaks in pipeline tunnels and accurate location of leaks, ensuring the safety of personnel entering the tunnels and demonstrating broad application prospects.

[0073] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A gas monitoring and alarm system, characterized in that, The gas monitoring and alarm system is installed in the oil and gas pipeline tunnel, which is laid with oil and gas pipelines. The system includes a monitoring module and a control and alarm module. The monitoring module is connected to the control and alarm module. The monitoring module includes multiple combustible gas monitoring units, toxic and harmful gas monitoring units, and oxygen monitoring units. The combustible gas monitoring units are spaced apart at the top of the oil and gas pipeline tunnel, the toxic and harmful gas monitoring units are spaced apart at the bottom of the oil and gas pipeline tunnel, and the oxygen monitoring units are spaced apart on the sidewalls of the oil and gas pipeline tunnel. The monitoring module is used to monitor the concentrations of combustible gases, toxic and harmful gases, and oxygen at multiple locations within the oil and gas pipeline tunnel and transmit the data to the control and alarm module. The combustible gases include methane and carbon monoxide, and the toxic and harmful gases include hydrogen sulfide, isobutane, and carbon dioxide. The control alarm module is used to issue an alarm signal when the concentration of any one of the combustible gas, the toxic and harmful gas, and oxygen at any location in the oil and gas pipeline tunnel reaches the corresponding threshold.

2. The gas monitoring and alarm system according to claim 1, characterized in that, Multiple combustible gas monitoring units, toxic and harmful gas monitoring units, and oxygen monitoring units are all connected to the control and alarm module; The interval between adjacent combustible gas monitoring units is a first preset distance; the combustible gas monitoring unit is used to monitor the concentration of the combustible gas and send it to the control alarm module; Multiple toxic and harmful gas monitoring units are spaced apart at a first preset height above the ground at the bottom of the oil and gas pipeline tunnel, and the interval between adjacent toxic and harmful gas monitoring units is a second preset distance; the toxic and harmful gas monitoring units are used to monitor the concentration of the toxic and harmful gases and send the data to the control alarm module. Multiple oxygen monitoring units are spaced apart on the sidewall of the oil and gas pipeline tunnel at positions between a second and a third preset height from the ground, with the interval between adjacent oxygen monitoring units being a third preset distance; the oxygen monitoring units are used to monitor the oxygen concentration and send the data to the control alarm module.

3. The gas monitoring and alarm system according to claim 2, characterized in that, The first preset distance is 5 meters, the second preset distance is 2 meters, and the third preset distance is 10 meters; the first preset height is 0.5 meters, the second preset height is 1.5 meters, and the third preset height is 2 meters.

4. The gas monitoring and alarm system according to claim 2, characterized in that, The oxygen monitoring unit includes an oxygen monitoring probe, a green indicator light, a red indicator light, and an oxygen probe detection motherboard; The oxygen monitoring probe, the green indicator light, and the red indicator light are all connected to the oxygen probe detection motherboard, which is connected to the control alarm module. The oxygen monitoring probe is used to monitor the oxygen concentration. The oxygen probe detection motherboard is used to control the red indicator light to illuminate when the oxygen concentration reaches the oxygen threshold, and to control the green indicator light to illuminate when the oxygen concentration does not reach the oxygen threshold. The combustible gas monitoring unit includes a combustible gas monitoring probe, a green indicator light, a red indicator light, and a combustible gas probe detection motherboard; The combustible gas monitoring probe, the green indicator light, and the red indicator light are all connected to the combustible gas probe detection motherboard, which is connected to the control alarm module. The combustible gas monitoring probe is used to monitor the concentration of the combustible gas. The combustible gas probe detection motherboard is used to control the red indicator light to illuminate when the concentration of any combustible gas reaches the threshold of the corresponding combustible gas, and to control the green indicator light to illuminate when the concentration of any combustible gas does not reach the threshold of the corresponding combustible gas. The toxic and harmful gas monitoring unit includes a toxic and harmful gas monitoring probe, a green indicator light, a red indicator light, and a toxic and harmful gas probe detection motherboard; The toxic and harmful gas monitoring probe, the green indicator light, and the red indicator light are all connected to the toxic and harmful gas probe detection motherboard, which is connected to the control and alarm module. The toxic and harmful gas monitoring probe is used to monitor the concentration of the toxic and harmful gas. The toxic and harmful gas probe detection motherboard is used to control the red indicator light to illuminate when the concentration of any of the toxic and harmful gases reaches the corresponding threshold, and to control the green indicator light to illuminate when the concentration of any of the toxic and harmful gases does not reach the corresponding threshold.

5. The gas monitoring and alarm system according to claim 1, characterized in that, The control and alarm module includes a control unit, warning lights, and an alarm. The control unit is connected to the monitoring module, the warning light, and the alarm, respectively. The warning light is used to emit an alarm light, and the alarm is used to emit an alarm sound. The control unit is used to control the warning light and the alarm to work when the concentration of one of the combustible gas, the toxic and harmful gas and oxygen at any location in the oil and gas pipeline tunnel reaches the corresponding threshold.

6. The gas monitoring and alarm system according to claim 1, characterized in that, It also includes a photovoltaic power supply module, which is installed outside the oil and gas pipeline tunnel. The photovoltaic power supply module is connected to the monitoring module and the control alarm module via cables. The photovoltaic power supply module is used to convert light energy into electrical energy to power the monitoring module and the control alarm module.

7. The gas monitoring and alarm system according to claim 1, characterized in that, It also includes a display module; The display module is connected to the control alarm module, and the control alarm module is also used to send the alarm information corresponding to the alarm signal to the display module, and the display module is used to display the alarm information.

8. The gas monitoring and alarm system according to claim 7, characterized in that, The display module includes a display screen, a mobile phone, and a computer.

9. The gas monitoring and alarm system according to claim 7, characterized in that, It also includes a wireless signal transmission module; The wireless signal transmission module is installed at the entrance of the oil and gas pipeline tunnel. The wireless signal transmission module is communicatively connected to the display module and the control alarm module, respectively. The wireless signal transmission module is used to establish a remote communication connection between the display module and the control alarm module.

10. The gas monitoring and alarm system according to any one of claims 1-9, characterized in that, It also includes a rack, on which both the monitoring module and the control alarm module are mounted.

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