In the case of minor leaks in methane pipelines, the pressure remains stable
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The soap solution revealed a few tiny bubbles at the joint; after observing for 5 minutes, the number of bubbles did not increase. Is it necessary to take any action in this situation, and what is the level of risk?
Even minor leaks in methane pipelines need to be addressed, as methane is a flammable and explosive gas. Bubbles detected by soapy water indicate a leak point; although the number of bubbles has not increased, their persistent presence may pose a safety risk. It is recommended to address these leaks at the joints promptly to prevent them from spreading and causing more serious safety issues. The solutions may include replacing the seal or reinstalling the connector. Safety comes first; even if it seems to have little impact at the moment, potential risks should be avoided. .
Leak detection revealed tiny bubbles; the next step is to identify the cause of the leak, such as sealing issues, material problems, or welding defects. If it is not possible to shut down the system for repairs in the short term, monitoring can be carried out while using the system, with repairs done once it is possible to shut down part or all of the system to relieve pressure. Leaks that persist for a long time pose a risk, as they may increase in magnitude in the future.
Determine the temperature of the methane gas； If it is not a gas at room temperature, it is recommended to use a methane gas detector for testing again
This post was last edited by we11we11 on 2024-5-4 at 15:27. If it’s an indoor environment, it must be dealt with; in an outdoor open space, observation can be carried out temporarily, but it must still be addressed once the conditions permit
Micro-leaks must be addressed to meet the requirements of the standards.
First, figure out whether the small bubbles are caused by a leak; sometimes, when soap water is sprayed, air gets mixed in and creates bubbles. If it is confirmed to be caused by a leak, it must be addressed, no matter how minor it is.