QW Submersible sewage pump with auto coupling device

QW Submersible sewage pump with auto-coupling device

QW submersible sewage pump is a type of submersible sewage pump that adopts a large channel anti clogging hydraulic component design, greatly improving the ability of sewage to pass through. It can effectively pass through 5 times the diameter of the pump and solid particles with a diameter of about 50% of the pump diameter.

QW submersible sewage pump is suitable for the discharge of severely polluted wastewater in factories and commercial areas, sewage discharge stations in residential areas, urban sewage treatment plant drainage systems, civil air defense system drainage stations, water treatment plants, hospitals, hotels, municipal engineering construction sites, exploration, mining supporting machines, rural biogas digesters, farmland irrigation and other industries. It can also be used for conveying granular sewage and pollutants, as well as for clean water and corrosive media.

 automatic coupling device for automatically connecting the outlet flange of a submersible electric pump with the outlet pipeline system, consisting of a submersible electric pump outlet flange, an additional coupling flange, and an outlet pipe seat inlet flange. There are a pair of wedge clamps on both sides of the additional coupling flange and the outlet pipe seat inlet flange, and the wedge points are located near the horizontal centerline of the flanges. When the submersible pump descends from above the water pit, the wedge clamps on both sides of the additional coupling flange and the wedge clamps on both sides of the inlet flange of the outlet pipe seat are clamped together. Under the action of the self weight of the submersible pump and the inclined surface of the wedge clamps, the two flange surfaces are tightly pressed together, just like two bolts are tightened on both sides of the two flanges. No matter how high the water pressure of the submersible pump is, it cannot push open the flange surfaces and cause a large amount of water leakage. When the submersible pump is lifted up from the water pit, the two pairs of wedges can be easily disengaged along the inclined surface, thereby achieving the function of an automatic coupling device. It can solve the problem of a large amount of water leakage between the two flanges of the coupling while facilitating the automatic assembly and disassembly of the submersible electric pump, thereby saving energy.