Submersible water pumping station suitable for rivers with high water level changes and silt in hilly areas

Abstract

The invention discloses a submersible water pumping station, which includes a pump room, and a cement and sand buffer zone, a sediment deposition and a water pump suction area are arranged inside the pump room; A plurality of pump pits are arranged at intervals parallel to the water flow direction, and submersible sewage pumps are installed in the plurality of pump pits; sediment backwashing pipes are installed on the outlet pipes of the submersible sewage pumps, and the outlet ends of the sediment backwashing pipes extend into In the pump pit; U-shaped or ring-shaped pipe heads are arranged on the outlet end of the sediment backwashing pipe. The sediment backwashing pipe surrounds the submersible pump and is arranged along the wall of the pump pit. The U-shaped or ring-shaped pipe heads are respectively Set up multiple openings. The water lifting pump station provided by the present invention is especially suitable for rivers with high water level changes and many sediments in hilly areas, and can carry out water lifting operations smoothly during the flood period without causing sediment deposition in the pump room and damage to the submersible sewage pump The present invention also greatly reduces the construction difficulty and engineering investment cost of the water-lifting pumping station for rivers with high water level changes in hilly areas.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering facilities, and in particular relates to a submersible water-lifting pump station suitable for rivers with high water level changes and many sediments in hilly areas. Background technique [0002] In the field of water conservancy engineering, it is usually necessary to lift water from low water sources (such as rivers) in order to send water to high places to meet the needs of agricultural irrigation, urban water supply or other water needs. At this time, water pumps are often built stand. For the rivers in the southwestern hilly area, the water level of the river varies greatly in the wet and dry seasons, and the sediment content is high. 5000~10000NTU, or even higher. When taking water on such rivers, the traditional water pumping station is usually installed at a higher position on the bank of the river due to its non-submersible design. For the water pumping station w...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the above technical problems, and to provide a submersible water pumping station suitable for high water level changes in hilly areas and rivers with many sediments, which solves the shortcomings of traditional water pumping stations that cannot be submerged, and is suitable for The harsh river environment with high turbidity and high sediment content in the southwestern hilly area will not cause damage to the pumping pump or silting in the pump room, making the pumping station unable to operate. Agricultural production needs; and there is no need to build higher pumping station facilities, the pumping station is set lower, and the daily operation and maintenance are convenient, which greatly reduces the difficulty of construction and engineering investment

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