The safety problem of the gas pipeline network may be caused by third-party construction, in addition to the old corrosion of the pipeline or the heavy load on the road surface, which may cause leakage of the pipeline.
It is understood that blind gas construction caused gas pipeline damage resulting in natural gas leakage, accounting for about 30% of all repairs.
"Under normal circumstances, before the construction excavation, the construction unit needs to come to us to handle the relevant procedures. We will provide information on the location of the underground pipeline and send staff to the scene for monitoring, but now many construction units are not here. Recording, excavation without authorization." The relevant person in charge of a natural gas company said.
The gas pipeline in the user's home should be inspected every two years. "Some citizens have not been aware of the safety of gas. For example, the connection pipe of the cooker needs to be replaced regularly. The safe life of the rubber pipe is 18 months, and the service life of the metal hose is 6-8 years. The connecting pipe before use must be For special gas pipes, special pipe clamps must be used at both ends when using rubber hoses. In order to improve safety, it is recommended that you use metal hoses when using embedded stoves. If the replacement is not timely, the pipes may be damaged and leak. The person in charge said.
In addition, in the process of rebuilding the hidden danger points, the constraints are relatively large. Like the transformation on the road, it needs to be synchronized with the road construction; and the renovation in the community requires the cooperation of the property and the owner.
In a chemical reaction, the chemical reaction rate (which can be both increased and decreased) without changing the chemical equilibrium, and the substance whose chemical and chemical properties have not changed before and after the chemical reaction is called a catalyst (the solid catalyst is also called catalyst). According to statistics, about 90% of industrial processes use catalysts, such as chemical, petrochemical, biochemical, and environmental protection.
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