Submergence formula hollow fiber membrane subassembly

The utility model discloses a submergence formula hollow fiber membrane subassembly, including filter unit and the upper and lower end head of setting at the filter unit both ends, filter unit manages outlying hollow fiber membrane silk and sets up at compound upper and lower end support of managing both ends compound including the compound pipe of the product water gas distribution that has product water passageway and airflow channel, setting, forms between upper end head and the last end support and produces the hydroecium, produces the hydroecium between lower extreme head and the lower end support under forming, on produce and be equipped with the drain pipe that admits air that has drainage channel and inlet channel in the hydroecium, drainage channel's both ends respectively with last product hydroecium and the outside intercommunication of hollow fiber membrane subassembly, inlet channel's both ends communicate with the air inlet on the head of upper end with the inlayer airflow channel of producing the compound pipe of water gas distribution respectively. The integration and the two -way product water of gas distribution product water have been realized to this hollow fiber membrane subassembly, have simplified the aeration pipeline, have improved the resistance to soiling ability of membrane silk.