What are the disadvantages of integrated pump braking?

Integrated pump sluice is a system that integrates pumping station and sluice into a whole device, which forms sluice with submersible pump, and integrates opening and closing system, sewage interception system, liquid level monitoring, water quality monitoring, intelligent control and other ancillary facilities.

The service life of the integrated prefabricated pumping station is very long, which is more than twice that of similar sewage treatment equipment, and can reach more than 60 years (because the glass fiber reinforced plastic does not degrade, does not corrode and deform, and the inner wall is smooth and does not attach anything); The integrated equipment of the integrated pumping station is convenient for transportation and hoisting,

As long as the foundation pit excavation is completed and the pumping station bottom plate is prefabricated, the engineering quantity is small and the construction period is short, and the installation can generally be completed within one week; However, the traditional concrete pumping station is a reinforced concrete structure, and the bottom plate, pool wall and top plate of the pumping station are constructed step by step, which has a long construction period and takes 2-3 months for pouring and maintenance. Compared with the products produced by the factory, the precision of on-site construction is poor.

Traditional pumping station concrete is a porous material, which can react with gas and acid L biomass in soil, and is easy to corrode, leak and crack. The integrated pumping station has strong corrosion resistance, excellent toughness, anti-leakage and anti-cracking. The impeller of axial flow pump is equipped with 2 ~ 7 blades, which rotate in the cylindrical pump shell.

The fixed guide vanes are installed on the pump casing at the upper part of the impeller to eliminate the rotary motion of liquid, convert it into axial motion, and convert the kinetic energy of rotary motion into pressure energy. Axial flow pumps are usually single-stage, and a few are made into two-stage pumps. The flow range is very large, from 180 to 3.6 million cubic meters per hour; The lift force is generally below 20 meters. Axial flow pumps are generally vertical, with the impeller submerged under water, and there are also horizontal or inclined axial flow pumps.

1. The traditional pump gate is a split pump gate. The pump and gate are arranged separately, and a gate is arranged at the cross section of the river, and a pumping station is arranged at one side or both sides of the gate. The integrated pump gate is to install the submersible pump on the gate, and the gate and the pumping station are integrated into one, so there is no need to build a separate pump house.

2. The integrated pump sluice project has the advantages of small investment, short construction period, small occupied area, convenient installation, high speed and efficiency, and its large-flow low-lift submersible pump has remarkable flood control and drainage effect.

3. The integrated pump gate can inject a lot of fresh water into the inland river to alleviate the drought in the inland river. In many rivers, the elevation of the upper and lower reaches of the river bottom is close, the water flow is not smooth and the flow speed is too slow, which seriously affects the water quality. The integrated pump gate can improve the hydrodynamic force of the river, make the river flow in one direction and improve the water quality environment.