The invention provides a bracket type gas distribution
pipe lifting device and an aerator
pipe maintenance and
replacement method. The bracket type gas distribution
pipe lifting device comprises a plurality of sets of gas distribution pipes, wherein the gas distribution pipes are arranged in an
aeration tank and bear aerator pipes. Gas inlet pipes are arranged corresponding to the gas distribution pipes, the gas distribution pipes are arranged on a bracket arranged at the bottom of the
aeration tank, vertical lifting rods are arranged on the four corners of the bracket, and lifting mechanisms are arranged on the portions, corresponding to the lifting rods, of the tank wall top of the
aeration tank. Each lifting mechanism comprises a chain block, wherein each chain block is installed on a corresponding lifting support and located exactly above the corresponding lifting rod. A hanging ring is arranged on each lifting rod, and hooks of the chain blocks are hung on the hanging rings in a hooked mode. The gas inlet pipes are arranged beside one side of the tank wall. Each gas inlet pipe comprises a vertical section and a horizontal section. Each vertical section is communicated with the corresponding gas distribution pipe, each horizontal section is led to the aeration tank from the top of the corresponding tank wall, and the vertical section and the horizontal section of each gas inlet pipe are connected through a
flange or are detached. According to the bracket type gas distribution pipe lifting device and the aerator pipe maintenance and
replacement method, maintenance and replacement of the aerator pipes can be achieved under the condition that water drainage and
sewage removal are not conducted, unimpeded maintenance and replacement of the aerator pipes are achieved, and the aeration effect of the
sewage treatment technology is guaranteed.