POC dry gas holder sealing repair method

The invention belongs to the technical field of gas holder maintenance of metallurgy, petrochemical enterprises and the like, and particularly relates to a POC dry gas holder sealing repairing method which comprises the steps that after a gas holder stops running and a piston falls to the ground, sealing oil is completely discharged, the compensation demand is calculated, then a sealing lap joint point is adjusted, the compensation amount is symmetrically adjusted at the sealing joint point, circumferential tension is reduced, and the POC dry gas holder is repaired. The attaching amount of the rubber block and the side plate is increased, and radial compensation is indirectly achieved. Aiming at the actual abrasion loss of the rubber block, the rubber block with a proper length is added to the local position, the tension of other parts is not increased, the circumferential tension of the rubber block is eliminated, and the purpose of prolonging the service life of the rubber block is achieved. 本发明属于冶金、石化等企业气柜