Discussion on the problem of initial operation at atmospheric pressure
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Dear experts: I would like to ask how to ensure airtightness in a constant-pressure unit after it is put into operation for the first time – that is, after the construction team has completed pressure testing of the pipelines and the unit has been purged and washed
Relevant information can be found in the joint commissioning.
Once the suppression is completed, it indicates that the construction has met the required standards, and the next step is to hand it over to the owner for operation. So, after handing it over to the owner, the pipes should first be flushed. If some pipes do not have the conditions for flushing, then purging or explosive purging is carried out, with the aim of cleaning the pipes. Wait until the pipes are cleaned before performing a leak test, in order to check whether the sealing quality of flanges, valves, pipe fittings, and pressure tapping pipes meets the requirements of the manufacturing process. With this explanation, it should be clear now