According to the official microblog @ vitality Yuquan of the Publicity Department of Yuquan District Party committee of Hohhot, Inner Mongolia, at 7:40 on November 22, an explosion occurred in building 3, Minhe housing estate, Yuquan District, Hohhot, Inner Mongolia. The preliminary investigation was caused by pipeline gas leakage.

 Lately，The office of the safety committee of the State Council and the Ministry of emergency management issued a notice to deploy and strengthen urban safety risk prevention, and promote the experience and practice of urban lifeline safety engineering.

Notification requirements：At present, the old and new risks of urban safety are intertwined and superimposed, and the pressure on safety risk prevention is increasing. Some cities have successively occurred major accidents and disasters such as house collapse, explosion, flood and typhoon. The urban safety situation is complex and severe. All regions shall, in combination with the establishment of safety development demonstration cities, carry out comprehensive monitoring and early warning of urban safety risks according to the actual situation, and actively build a working system of comprehensive overall leadership, unified monitoring and dispatching, and linkage response and disposal. We should focus on the main problems and prominent risks of urban safety management, actively learn from typical practices, strengthen the pilot demonstration work, integrate strengthening urban safety risk prevention into the key work of the region, make full use of scientific and technological means, accelerate the establishment and improvement of the comprehensive monitoring and early warning system of urban safety risks, and improve the level of urban safety risk identification, prevention and resolution.

There are many closed spaces such as pressure regulating boxes, pressure regulating cabinets and valve wells distributed in the underground gas pipe network of the city. In case of gas leakage at these locations, it is very easy to form gas accumulation, resulting in potential safety hazards and accidents. These places are not only the important links of urban underground lifeline, but also the key nodes for gas pipelines to connect residential users.

Aiming at the safety blind spot of urban lifeline, Hanhai optoelectronics has launched a relevant solution - a series of combustible gas laser monitoring products of the Internet of things.

 Internet of things combustible gas laser monitoring series products are composed of detector, power supply and communication module and monitoring platform. Internet of things combustible gas laser monitoring series products are aboveground and underground laser monitoring products integrating laser absorption spectrum gas detection technology (TDLAS), low power consumption technology and Internet of things technology. This series of products are applicable to urban gas pressure regulating box, pressure regulating cabinet, valve well and unattended station. It is transmitted to the monitoring platform through NB lot Internet of things communication to realize real-time, fast, long-distance and accurate monitoring of trace gas leakage above the ground, underground, closed and semi closed spaces. It is the best blind spot solution for urban gas safety, so as to control the overall safety situation of urban gas and help the safety protection system of urban lifeline.
 

01、low power consumption

The Internet of things laser gas leakage monitor uses solar energy and battery power supply, and uses intelligent monitoring system, ultra-low power consumption and ultra-long operation time to promote the effective monitoring of end links.

02、Preventive monitoring

The response time is less than 10 seconds, which can accurately detect ppm trace gas leakage, upload the monitoring and alarm data to the cloud platform, make the gas concentration data display more intuitive, help the full coverage monitoring of urban gas leakage, and truly realize the preventive monitoring of gas leakage.

03、Easy installation

The modular design from detector to control system is adopted. The simplified system structure makes installation easier.

04、Strong anti-interference ability

It will not be disturbed by humidity, dust, temperature and other gases, and can work in high humidity environment for a long time.

05、Omnidirectional NB lot Internet of things access

With the Internet of things technology, all areas covered by the network can be used without being limited by distance and scope.

06、Waterproof alarm function

The water level monitoring function can monitor the accidental water inflow in the valve well in real time.

system configuration

Application scenario