Bellows sealed steam distribution tube bundle system

The invention discloses a bellows sealed steam distribution tube bundle system. Fork pipe seats are connected to the peripheral side of a main pipeline, penetrating holes corresponding to the fork pipe seats are formed in the side wall of the main pipeline, the fork pipe seats communicate with the main pipeline through the penetrating holes, each fork pipe seat comprises a valve seat and a branch pipeline which are connected in a V-shaped crossed mode, the valve seats are arranged corresponding to the penetrating holes, and the branch pipelines are branch steam passing pipelines and are used for being connected with branch steam pipelines; and valve rod assemblies are arranged in the valve seats, and the valve rod assemblies control the penetrating holes to be closed and opened. According to the bellows sealed steam distribution tube bundle system, the two fork pipe seats are arranged on the main pipeline, each fork pipe seat comprises the valve seat and the branch pipeline which are connected in the V-shaped