Submersible type lift pump station applicable to high-water-level-change sediment-laden river in hilly region

Abstract

The invention discloses a submersible type lift pump station. The submersible type lift pump station comprises a pump room, the pump room is internally provided with an inflow sediment buffering area and a sediment deposition and water pump absorption area. The sediment deposition and water pump absorption area is internally provided with multiple pump pits at intervals in the direction parallel to the water running direction, and the multiple pump pits are each internally provided with a submersible sewage pump; water outlet pipes of the submersible sewage pumps are each provided with a sediment reverse rinsing pipe, and water outlet ends of the sediment reverse rinsing pipes extend into the pump pits; the water outlet ends of the sediment reverse rinsing pipes are arranged to be a U-shaped or annular pipe heads, the sediment reverse rinsing pipes are arranged surrounding submersible pumps and along the walls of the pump pits, and each U-shaped or annular pipe head is provided with multiple holes in the pipe body direction. The submersible type lift pump station is particularly applicable to a high-water-level-change sediment-laden river in a hilly region, water lift work can be successfully conducted in flood reasons, and the phenomena of sediment accumulation and damage of submersible sewage pumps in the pump room cannot be caused. The construction difficulty and engineering investment cost of lift pump station of the high-water-level-change sediment-laden river in the hilly region are further drastically reduced.

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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