On March 30, the 34th meeting of the Standing Committee of the 13th Shandong Provincial People's Congress voted and adopted the decision of the Standing Committee of the Shandong Provincial People's Congress on Amending the regulations of Shandong Province on the administration of gas.

According to statistics, the current gas safety accidents at the user end account for 60-70% of all gas safety accidents. In order to strengthen the safety management of gas users, improve the construction and operation management standards of gas safety facilities at users, and avoid gas accidents at users endangering public safety, the regulations strengthen the safety measures at gas users from the following aspects: first, it is stipulated that if residential houses use pipeline gas, gas leakage alarm and cut-off devices shall be installed, and the installation, maintenance and renewal costs shall be included in the gas distribution cost of gas operating enterprises; Second, it is clear that the maintenance and renewal of gas facilities and connecting hoses in front of gas stoves for residential pipeline gas users shall be implemented by gas operating enterprises in accordance with national standards, and the expenses shall be included in the cost of gas distribution; Third, implement the new production safety law and relevant standards, and stipulate that if the production and business units and canteens in catering and other industries use gas, they should install gas leakage alarm devices, and if pipeline gas is used, they should install gas leakage alarm and cut-off devices; Fourth, to make provisions on the circumstances, procedures and remedies for gas enterprises to suspend gas supply for illegal gas use by gas users; Fifth, increase the provisions of villagers' committees, residents' committees and property service enterprises to cooperate with household safety inspection, so as to solve the problem of difficult security inspection of gas operating enterprises.

Xu Qifeng, deputy director of Shandong Provincial Department of housing and urban rural development, said that in the next step, in accordance with the deployment of national and Shandong provincial urban gas safety investigation and rectification work, we will focus on the aging and upgrading of gas pipelines and the construction of smart gas safety management system, increase the promotion force, strengthen the implementation of responsibilities, and complete the aging and upgrading of municipal and courtyard gas pipelines for more than 450 kilometers in 2022. By the end of the 14th five year plan, Basically complete the task of aging, upgrading and reconstruction of urban gas pipelines. We will also strictly standardize the law enforcement of gas safety, focus on the law enforcement of those who do not implement the responsibility for safe production, focus on the rectification and treatment of a number of major safety hazards, severely punish a number of illegal acts according to law, close and ban a number of enterprises that violate laws and regulations and do not meet the conditions for safe production, jointly punish a number of market subjects who have seriously broken their promises, and expose a number of units and individuals whose responsibility measures have not been implemented.

For the enhanced security measures in the regulations and the promotion of a series of relevant policies, Hanhai optoelectronics gives solutions.

The catering industry and canteens are still using old electrochemical or catalytic combustion gas leakage detectors. But over time, these detectors quickly became useless because they had no professional maintenance. At present, the use of gas in most catering industries and unit canteens is in a state of no safety monitoring, which is a great potential safety hazard in each unit.

In view of this situation, Hanhai photoelectric passive optical fiber laser leakage monitoring system can eliminate the existing potential safety hazards in such scenes.

Passive optical fiber laser leakage monitoring system

The system consists of laser monitoring platform, passive laser detector and solenoid valve. The monitoring platform is located in the property monitoring center, the passive laser detector is located in the gas and fire unit, and the solenoid valve is located at the inlet of the unit's gas pipeline. The platform is connected with the detector and solenoid valve by optical fiber to form a gas safety monitoring network. In case of gas leakage, the system immediately drives the solenoid valve to cut off the gas source to prevent combustion and explosion. When the unit air of gas and fire reaches the safety standard, the system will automatically restore the air supply.

Advantages of passive optical fiber laser leakage monitoring system

01 no power required

The system host can be installed tens of kilometers away, while the monitoring site of the gas and fire unit only needs to install passive light sensing terminals (pure optical equipment, no power supply). For the areas where restaurants gather, the real-time online monitoring of combustible gas can be realized through the remote monitoring platform.

02 no calibration required

The passive optical fiber laser leakage monitoring system does not need regular calibration and maintenance, which can ensure its normal use.

No false alarm can improve the reliability of gas detection.

03 long service life

Using semiconductor light source and optical glass, no contact measurement, no physical loss, and the service life can reach decades. Therefore, the service life of passive optical fiber laser leakage monitoring equipment is 10 times that of traditional detection equipment.

04 more stable

The traditional detection equipment has poor stability and is vulnerable to impact and poisoning caused by high gas leakage concentration; Then detect the failure. Passive optical fiber laser leakage monitoring equipment does not have this problem. The working performance is more stable.

system configuration

At this time the safety of the city's lifeline is ensured by installing a series of products for combustible gas laser monitoring of the Internet of things on the blind spots of gas safety in the whole city, such as pressure regulating box, pressure regulating cabinet and valve well.

Internet of things combustible gas laser monitoring series products

01 low power consumption

The laser gas leakage monitor of the Internet of things adopts 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 the end link.

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 the 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

Using Internet of things technology, all areas covered by the network can be used without limitation of 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