Immersed type membrane cisterna membrane assembly and pipeline fast connecting and assembling method

The invention discloses an immersed type membrane cisterna membrane assembly and a pipeline fast connecting and assembling method, which relate to a fast connecting and assembling method. The invention solves the problem of inconvenient membrane thread cleaning and replacement caused by that the prior art does not have the immersed type membrane cisterna membrane assembly or the pipeline fast connecting and assembling method. The method comprises the following steps: (1) firstly, tightly sheathing and installing a rubber sealing ring at the connection part of each branched pipe on a membrane assembly, wherein one half of each rubber sealing ring is fixedly sheathed on the connecting end part of each branched pipe of the membrane assembly, and the other half of the rubber sealing ring is turned and sheathed on the front half of the rubber sealing ring; (2) ensuring that the axial installation gap of the connecting end of each branched pipe of pumping and sucking pipelines and each branched pipe of the membrane