Vacuum flushing, one vacuum flushing twice

Vacuum flushing equipment, flushing twice with one vacuumThe application scope of intelligent vacuum flushing equipment for rainwater storage tanks. As an engineering measure to control initial rainwater pollution, rainwater storage tanks have been designed, constructed, and operated in Shanghai, Beijing, and other places in China in recent years Due to the high concentration of suspended particles and organic pollutants in the initial rainwater, it is necessary to promptly flush and eliminate the sediment at the bottom of the storage tank after it is emptied Vacuum flushing, as a new type of flushing and dredging method, uses the siphon effect to control the water volume in the storage chamber. After the water in the pool is emptied, the vacuum diaphragm valve is opened, and the flushing water in the storage chamber enters the pool and carries away the sludge in the pool. It has the advantages of simple structure, water resource saving, and easy operation.

Vacuum flushing equipment, flushing twice with one vacuum

As an effective technical measure for controlling urban runoff pollution, mitigating or eliminating urban waterlogging, and utilizing rainwater resources, regulating reservoirs are increasingly being applied in fields such as black and odorous water treatment and sponge city construction. However, the overflow sewage generated in the combined sewer area and rainwater containing non-point source pollution entering the storage tank will produce a large amount of sediment such as mud and sand at the bottom of the tank. How to clean and effectively discharge these sediments from the storage tank is crucial for its normal and stable operation. The flushing equipment of the storage tank can be divided into two categories according to its working principle: one is to store the flushing water (including external water supply and water stored in the tank) in advance, and use the potential energy of the water level to discharge the stored water in a short period of time. It enters the flushing water collection channel at the end of the storage tank from their respective corridors, and is discharged outside the tank through the water pump in the channel. To achieve good flushing effect, flushing equipment manufactured according to this principle must have two points: sufficient water level potential energy and continuous flushing of the pool bottom in a short period of time, otherwise the flushing effect will be greatly reduced.