Smart City Gas Safety Monitoring Solution for Valve Wells

Smart City Gas Safety Monitoring Solution for Valve Wells

1. Project Background

Rapid urbanization has driven the fast development of municipal public utilities. Buried gas pipelines, however, face the challenge of pipe aging over long-term service. On-site investigations have revealed micro-leakages in the gas pipelines inside valve wells. Because these wells are fitted with double-layer manhole covers, such leaks are difficult to detect from above ground. Yet if left unaddressed, even tiny leaks can accumulate into serious safety hazards. They not only disrupt the normal operation of related equipment and cause substantial direct and indirect economic losses, but also pose a serious threat to vehicles and pedestrians on the road above, undermining public safety and social stability.

As urban areas continue to expand, gas pipelines are spread over increasingly wide areas and exist in large numbers, which makes supervision ever more difficult. Intelligent in-well gas monitoring devices can accurately detect even the slightest gas leakage, prevent “small leaks” from escalating into major incidents, and ensure the safe and reliable operation of the city’s pipeline network.

With nearly 10,000 customers served to date, Otywell offers a comprehensive range of gas detection and alarm instruments. Our products are deployed across numerous industries that require monitoring of flammable, explosive, and toxic gases, including telecommunications, municipal power, gas pipeline networks, mining, healthcare, environmental protection and firefighting, automobile manufacturing, the chemical industry, smelting and foundry, pharmaceuticals, archaeological exploration, coal coking, food refrigeration, and defense manufacturing.

2. Product Applications

The Gas Intelligent Monitoring Terminal is engineered for harsh working environments and can be deployed in gas valve wells, power cable wells, and telecommunications wells. It monitors the gas concentration and water level inside the well in real time. Once the gas concentration exceeds the preset alarm threshold, the terminal immediately sends an alarm notification so that responsible personnel can investigate and resolve the cause, effectively eliminating the major safety hazards caused by gas leakage.

3. Market Demand

1. Underground gas leakage poses major safety hazards– Damaged or leaking underground gas pipelines present a serious risk to vehicles and pedestrians on the road above.

2. The large number of underground pipelines makes inspection difficult– Gas pipelines are widely distributed and numerous, making supervision difficult, while manual inspection is time-consuming and labor-intensive.

3. Evasive management and maintenance responsibilities increase safety risks– Unclear division of responsibilities leads to delayed inspection and maintenance, compounding the potential for accidents.

4. The need for effective regulatory oversight– Minor leaks caused by damaged underground gas pipelines often go completely undetected by regulatory authorities.

4. Project Overview

The Urban Underground Gas Leak Wireless Monitoring System integrates NB-IoT wireless transmission technology with advanced gas detection technology to fully automate gas pipeline leak detection. Compared with manual inspection, it provides significantly greater real-time responsiveness and reliability, strengthening and upgrading the city’s early-warning capability for gas pipeline leaks.

5. Core Functions

1. In-well gas concentration alarm

2. In-well water level alarm

3. In-well pressure alarm

4. Low-voltage alarm

5. Data statistics

6. Intelligent reports

7. Historical data

8. Alarm location alert

6. System Architecture

Cloud-platform

7. Product Structure

gtp11

8. Product Specifications

Power supply

Battery-powered

Operation mode

Interval sampling (parameters configurable)

Sampling method

Diffusion type

Sensor type

Catalytic combustion / laser catalytic combustion / laser sensor (combustible gas)

Other target gases

If the gas at your site is not listed above, please contact us for consultation.

Detection range

CH4: 0–100% LEL, accuracy ±5% FS

Temperature range

−40 °C to 125 °C, accuracy ±2 °C

Display

LCD

Operating environment

Temperature: −30 °C to 70 °C; Humidity: ≤95% RH (non-condensing)

Ambient pressure

86–106 kPa

Battery life

No less than 18 months (standard operation mode)

Explosion-proof rating

Ex ib IIB T3 Gb

Dimensions

190 × 210 × 70 mm

Weight

Approx. 2.6 kg

Power supply

Battery-powered

Operation mode

Interval sampling (parameters configurable)

Sampling method

Diffusion type

Sensor type

Catalytic combustion / laser catalytic combustion / laser sensor (combustible gas)

Other target gases

If the gas at your site is not listed above, please contact us for consultation.

Detection range

CH4: 0–100% LEL, accuracy ±5% FS

Temperature range

−40 °C to 125 °C, accuracy ±2 °C

Display

LCD

Operating environment

Temperature: −30 °C to 70 °C; Humidity: ≤95% RH (non-condensing)

Ambient pressure

86–106 kPa

Battery life

No less than 18 months (standard operation mode)

Explosion-proof rating

Ex ib IIB T3 Gb

Dimensions

190 × 210 × 70 mm

Weight

Approx. 2.6 kg

 

9. System Applications

The valve well gas leak monitoring system is a flagship product in the IoT application industry chain. It plays an active role in mitigating underground gas pipeline leaks and improving urban management efficiency. The system delivers in-well gas leak, water level, pressure, and low-battery alarms, notifying users via SMS text messages and voice calls. Combined with a powerful work-order management module, the system automatically notifies responsible personnel based on alarm information, dispatches tasks, and tracks their execution through to completion, delivering tangible improvements in the efficiency of urban management.

Actual-photos

10. Platform Functions

1. GIS-based graphical interface display – The system complies with national standards for surveying and mapping data and imagery. Gas utilities can quickly pinpoint the exact location of a leak through the GIS interface, providing management with a reliable basis for command and decision-making.

2. Unified network management with clear accountability – Clear division of responsibilities with timely updates to maintenance records.

3. Alarm information push – Alarm information from in-well gas leak monitoring devices is not only transmitted in real time to the monitoring platform, but also delivered to responsible personnel and managers via SMS text alerts and audible alarm tones, supporting work-order dispatching and patrol management.

4. Equipment archive management – The system manages the basic information of in-well gas leak monitoring devices, including valve well (chamber) name, number, location, construction date, repair records, inspection records, terminal parameters, zero-calibration records, maintenance records, and configuration records.

11. Project Advantages

The application of IoT technology in environmental monitoring is an industry-wide trend. Reliable and secure intelligent data acquisition and transmission systems are the foundation of IoT-based automated environmental monitoring. By intelligently collecting and transmitting the data generated by a wide range of automated environmental monitoring devices, such systems improve data transmission efficiency and data quality, providing dependable decision-making support for environmental regulators.

1. Unified management with clear accountability – Timely reporting and enhanced maintenance help prevent loss of life and property.

2. Task tracking with no omissions – Once a maintenance work order is issued, the system automatically tracks the task until it is closed.

3. At-a-glance map display – In-well gas leak locations are displayed on a map with color-coded statuses, allowing immediate identification of the leak site and the responsible personnel.

4. Real-time alarms for prompt response – Any water accumulation, abnormal pressure, or gas leakage inside the well triggers an instant notification, enabling immediate action.

12. Product Advantages

01 Low-power design – Energy-efficient and eco-friendly, with a battery life of no less than 18 months (standard operation mode).

02 Round-the-clock real-time monitoring – 24/7 continuous monitoring, with alarm notifications delivered directly to responsible personnel’s mobile phones via SMS.

03 NB-IoT wireless data upload – Dual data upload mechanism combining scheduled (time-based) and event-driven (alarm) transmission.

04 User-friendly design – Intuitive display, excellent repeatability, easy installation, simple maintenance, and convenient operation.

Related Products

Otywell focuses on the research, development, manufacturing, and application of advanced safety products, including IoT laser dust monitors, solar-powered flame detectors, wireless combustible and toxic gas leak detectors, valve chamber methane detectors, magnetic gas leak alarms, laser methane remote sensing instruments.

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Otywell focuses on the research, development, manufacturing, and application of advanced safety products, including IoT laser dust monitors, solar-powered flame detectors, wireless combustible and toxic gas leak detectors, valve chamber methane detectors, magnetic gas leak alarms, laser methane remote sensing instruments.

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