Stainless steel cyclone separator installing and welding deformation preventing device and cyclone separator installing and welding method

The invention relates to a stainless steel cyclone separator installing and welding deformation preventing device and a cyclone separator installing and welding method. The installing and welding deformation preventing device comprises a circular ring mechanism, the circular ring mechanism is arranged on the inner sides of a connecting pipe and a barrel and the outer side of a large connecting pipe in the circumferential direction of the connecting pipe, the barrel and the large connecting pipe. According to the provided installing and welding method, the installing and welding sequence is reasonably set, and it is guaranteed that welding deformation between all components can be controlled. According to the provided installing and welding deformation preventing device and the cyclone separator installing and welding method, unfavorable deformation of a cyclone separator during installing and welding can be effectively controlled, and it is guaranteed that after welding is finished, the size precision can sti