Eliminate hidden safety hazards of pipeline aging, strictly standardize construction safety management, supervise and inspect compaction prevention measures
Take multiple measures to ensure gas safety (Jintai Vision)
Gas safety is related to the safety of people's lives and property.
In recent years, gas accidents have occurred in many places, causing casualties and property losses. Gas safety has become a topic of great concern to the society.
Recently, many readers wrote to reflect the gas safety problems around them, suggesting to strengthen gas safety management, prevent and reduce accidents, and ensure the safety of people's lives and property.
The problem of pipeline aging is prominent, affecting the daily supply guarantee and safe operation, and it is urgent to increase the renovation and transformation efforts
Statistics from the emergency management department show that in 2021, the number of indoor gas explosion accidents will account for about half of the total gas safety accidents, of which problems such as aging hoses and gas leakage will account for 21%, which is one of the main reasons for urban gas safety accidents.
According to the relevant person in charge of the National Development and Reform Commission, in recent years, relevant departments in various regions have vigorously promoted the construction of urban gas pipelines. By the end of 2020, there are about 1.05 million kilometers of gas pipelines in cities and counties nationwide.
However, the aging problems of urban gas, water supply, drainage, heating and other pipelines are currently prominent, affecting daily supply and safe operation. In particular, pipeline gas accidents occur from time to time, which seriously threatens the safety of people's lives and properties. Eliminate security risks.
Some readers have also reflected similar problems in their letters. For example, in some places, due to the long-term extrusion of passing vehicles, the deformation or even rupture of gas pipelines has been accelerated; in others, the construction standards were low, and daily maintenance, maintenance, and updates were not timely. Security risks.
A netizen in Baodi District, Tianjin left a message on the People's Daily Online's "Leadership Message Board", saying that the gas pipeline was connected to the village a few years ago, but after a few years of operation, the gas pipeline is seriously corroded due to the material and other reasons, especially the welding at the interface. The corrosion was so bad that the villagers were worried.
In this regard, the relevant departments in Tianjin immediately investigated, and the gas company carried out rust removal and painting treatment on the reduced diameter of the overhead pipeline and the corrosion part of the welding joint, and carried out a safety hazard investigation in the whole village, and dealt with other pipelines with corrosion conditions. Safety hazards are eliminated.
A few days ago, the General Office of the State Council issued the "Implementation Plan for Aging, Renovation and Renovation of Urban Gas Pipelines (2022-2025)", which clearly requires a comprehensive understanding of the basics of aging, renovation and renovation of urban gas pipelines, etc. To eliminate potential safety hazards, it is proposed that a batch of aging renovation projects should be launched in 2022; by the end of 2025, aging renovation tasks such as urban gas pipelines will be basically completed.
The plan also deploys key tasks from four aspects, including clarifying the scope of renovation and renovation targets, and rationally determining renovation standards; accelerating project implementation, simultaneously promoting digital, networked, and intelligent construction, and strengthening pipeline and facility operation and maintenance; Policy support, implement the investment responsibility of professional operating units, and establish a reasonable sharing mechanism for funds; improve supporting measures, strengthen technical standard support, and strengthen market governance and supervision.
Construction damage is one of the important reasons for gas accidents, and the laying of pipelines should be carried out in accordance with laws and regulations
"When laying the smoke exhaust pipes of the shops in the community, the construction personnel randomly opened holes in the wall of the gas pipes. I wonder if it is safe? I hope the relevant departments will check, and if there are potential safety hazards, please adjust them in time to protect the safety of the owners." Recently, a certain person in Longgang District, Shenzhen The owner of the community, Ms. Huang, wrote to reflect the safety problems at the third-party construction site in the community.
According to statistics, among the natural gas pipeline network accidents that occurred last year, more than 70% were caused by construction.
Among the many natural gas pipeline network accidents in recent years, the damage caused by third-party construction is one of the important reasons.
In August 2021, the construction of the rural pipeline network reconstruction project in Gaoyang County, Baoding City, Hebei Province caused the underground gas pipeline to be damaged.
Li Jinsong, a business expert of Ganghua Gas Company, who has been engaged in safety production for a long time, reminded that construction workers should stop immediately when they hear a harsh sound of airflow, see white misty gas drifting away, or smell gas (rotten eggs) during the operation. Work, and notify the site management personnel, organize the evacuation of the surrounding crowd, call the gas company's emergency call in a safe area away from the site, demarcate a warning area on the site, conduct temporary traffic control, and prohibit the use of open flames and phone calls.
"In daily life, everyone should also take care of gas facilities such as gas sign piles and facility wells, and jointly protect the 'lifeline' of safe gas use in the city." Li Jinsong said.
Some readers reported that the installation of gas pipelines in some places did not meet the relevant regulations.
The residential community of Ms. Chai, a resident of Fushun City, Liaoning Province, was built nearly 20 years ago. At that time, the developer and the gas company did not install an inlet valve for each gas pipeline. The residents could only control the gas by a thumb-sized switch mounted on the wall. Once the switch is damaged, or the indoor gas pipeline leaks, residents cannot turn off their own gas in an emergency.
After understanding the situation, the relevant local departments went to the home to investigate and installed valves that met the standards.
Experts said that residents found that the installation of gas equipment such as pipelines in their homes is not compliant, and they have the right to ask relevant parties to make rectifications, but residents cannot change the pipelines by themselves, and those who change the gas pipelines without permission may even violate the law.
In the residential area where Mr. Wang lives in Shijiazhuang City, Hebei Province, a certain owner dismantled the gas pipeline without permission, resulting in the failure of normal gas supply. After repeated communication and coordination between the housing construction department, the project developer and the gas company, the community developer took the owner to court.
Li Chunqing, the relevant person in charge of the corporate safety department of Beijing Gas Group, reminded that citizens who need decoration should decorate according to laws and regulations. If pipeline gas is used in the kitchen, the gas pipeline shall not be used as a load-bearing bracket or grounding lead, and shall not be installed, modified or dismantled indoors without authorization. Gas facilities and gas metering devices, "otherwise it will cause safety problems such as gas leakage".
Promote the comprehensive installation of gas alarms in an orderly manner, and give full play to the safety warning function of gas alarms
"There are some stalls in the food street where gas stoves and liquefied gas tanks are placed next to each other. When cooking, the flames from the gas stoves almost burn into the liquefied gas tanks. It looks quite scary." Not long ago, a citizen of Baoding City, Hebei Province The letter said that there is a food street nearby with a lot of traffic, and many stalls use liquefied gas tanks, but most of the safety protection measures are not in place, and there are certain safety risks.
A restaurant owner said: "Nearby restaurants, including food stalls, basically use liquefied gas tanks, which are replaced when they are used up, and no one has come to check and maintain them. For so many years, everyone has used it like this, and I have never seen one. What's the problem."
In this regard, many readers believe that the use of gas in food streets, restaurants and other public places is not standardized, and it is easy to cause safety accidents. It is recommended to focus on investigating and renovating public places such as restaurants, especially the remediation of gas pipelines that are illegally occupied and crossed. Space and other hidden dangers, and at the same time promote the comprehensive installation of gas alarms in an orderly manner.
Gas alarms are important gas safety equipment.
At present, the installation coverage in various places has been greatly improved, but there are still some problems in installation selection, product quality, use and maintenance, supervision and management, and its accident prevention role needs to be further developed.
According to statistics, there are more than 150 professional gas alarm manufacturers in the country that have obtained the type approval certificate for measuring instruments, but there are still many manufacturers producing gas alarms without a license, and the product quality cannot be guaranteed.
A letter from a reader stated that the gas alarm device in the home could not effectively sense the leaking gas, and "the family only found out that the gas leaked when they smelled the pungent smell."
The reporter inquired on multiple e-commerce platforms, and most of the gas alarms with sales of more than 10,000 are priced within 20 yuan, and the manufacturers have not obtained relevant certificates.
Under the environment of high temperature, humidity and oil pollution in the kitchen, the gas sensor of this type of product is easily damaged in a short period of time, and there will be a problem of false alarm or no alarm, and the alarm function cannot be guaranteed.
Li Chunqing said: "After the promulgation and implementation of the newly revised safety production law, the specific installation and implementation methods of gas alarms have not been refined in some areas, and the scene selection standards, installation requirements, replacement cycle, verification and maintenance responsibilities of gas alarms have not been clearly defined. "It is understood that there are currently three national standards for gas alarms, which put forward different requirements for industrial and commercial gas alarms and household gas alarms, but at present, the gas alarms selected by many catering units do not match the usage scenarios and cannot effectively realize early warning. Function.
In addition, the sensitivity of the sensor of the gas alarm will naturally decrease by 10% to 30% every year under normal use. It must be checked regularly to ensure accuracy and reliability, but some users have not implemented it according to the requirements.
Recently, a special inspection of gas alarms was carried out in a certain place, and it was found that nearly 30% of them were not verified or calibrated.
Improve the sense of responsibility of gas companies, strengthen daily supervision and patrol, and coordinate the promotion of gas safety precautions
Recently, Mr. Liu, a reader in Bao'an District, Shenzhen, reported that there were irregularities in the canned gas service points near the residence, which brought certain safety hazards.
"The liquefied gas station often stores a large number of liquefied gas tanks on the first floor of the residential area, and there are often large inflammable and explosive goods transport vehicles parked downstairs." In addition, Mr. Liu also said that the staff of the liquefied gas station put the liquefied gas tanks It was placed on the fire exit, and some staff even set fire to smoke beside the piles of liquefied gas tanks.
At present, the relevant local departments have noticed this situation and went to the scene to investigate hidden dangers.
The reporter's investigation found that some gas companies put emphasis on production and ignoring safety, and their safety management did not keep pace with them. The safety technology and equipment were insufficiently equipped, the professional ability of employees was lacking, and the quality of employees and safety awareness were not high, which brought hidden dangers to gas safety.
Many readers believe that gas companies should consciously improve their sense of responsibility for preventing and resolving safety risks.
At present, some places have carried out daily inspections of gas companies to ensure the safety of gas use by the masses.
For example, regulations on urban gas management have been promulgated in many places, and it is clear that gas operating companies shall conduct safety inspections on indoor gas facilities of non-resident pipeline gas users at least once a year, and at least once every two years for residential users.
The inspection content shall comply with the national standards and relevant safety technical regulations, and the inspection records shall be confirmed by the gas user.
However, there are still readers who report that the inspection and replacement of gas meters that should have been carried out in some areas according to relevant regulations have not been effectively implemented.
For example, according to relevant regulations, the service life of gas meters using natural gas is generally not more than 10 years, and they need to be replaced when they expire.
Ms. Wen, a reader from Chaoyang City, Liaoning Province, said that it took 14 years for the gas meter in her residential area to be replaced.
It is understood that since the beginning of this year, multiple departments have coordinated and promoted gas safety prevention work, and studied and implemented targeted measures in combination with their own responsibilities.
On the one hand, through the supervision and inspection of compaction preventive measures.
The Safety Committee of the State Council dispatched 16 comprehensive inspection teams to various places to carry out safety production supervision focusing on gas, and sent a number of working groups to the scene of relevant gas explosion accidents to supervise and inspect the accident, to guide the identification of the cause of the accident and to investigate the responsibilities seriously.
On the other hand, the State Council Office of the Safety Committee deployed and promoted the construction of a comprehensive monitoring and early warning platform for urban safety risks, and urged 18 pilot cities (districts) such as Hefei, Chengdu, and Foshan to advance the construction of the platform in an orderly manner, so as to realize real-time monitoring and timely monitoring of gas safety risks. Early warning and quick response.
At the same time, the State Council Safety Committee Office actively guides all parties to implement the "14th Five-Year Plan" and urban renewal actions, accelerate the renovation and upgrading of out-of-age gas pipelines, and promote relevant departments to strengthen policy and financial support.
(Reporter Huang Chao and Zang Linxi participated in the collection and writing)