Dry gas holder

The dry-type gas holder is composed of a base plate, a cylindrical cylinder (with a regular polygon or circular cross-section), the top of the tank and a piston moving up and down along the inner wall of the gas holder. The lower part of the piston is the air storage space, and the piston moves up and down with the amount of air storage. In order to prevent gas from escaping, a sealing device is set between the piston periphery and the inner wall of the gas tank. Counterweight can be set on the top surface of piston to meet the requirements of gas storage pressure.
Dry gas holders can be divided into three categories according to different sealing methods: oil sealed gas holders (also known as Mann type dry gas holders); Grease sealed gas holder (also known as Kelong dry gas holder); Flexible membrane sealed gas holder (also known as Wiggins dry gas holder).