Dry gas holder maintenance

The dry-type gas holder is in the shape of regular polygon. A large I-beam is erected at the top corner of the cylinder as a connecting piece for connecting the side wall panels and the lifting track for floating the large piston. The side wall of the cylinder is made of the pressed wall panels, which are stacked and welded. The top frame of the cabinet adopts the section steel truss structure. The top plate of the cabinet is made of steel plates or welded by the pressed panel. The cabinet top is equipped with ventilation and ventilation devices. In the gas holder, there are regular polygon pistons corresponding to its shape, and concrete prefabricated blocks are pressed on the piston to regulate the gas pressure of petroleum processing | chemical process. There are flexible sealing devices around the piston, which can be divided into thin oil sealing and rubber curtain sealing according to the sealing form. The piston has different structure due to its different sealing forms. The framework software of the piston of the thin oil seal gas tank is a steel truss, and the bottom of the framework is welded with steel plate to seal it. The piston of the rubber curtain sealing gas holder is composed of a piston plate welded with steel plate, a concrete bracket, a bracket, a piston strut, etc.