3results about How to "Reduce water load" patented technology

The application belongs to the technical field of urban secondary water supply equipment and automatic water tank cleaning, and discloses a distributed dual-working-condition pressurized cleaning control method, system, equipment and medium, which comprises the following steps: collecting the liquid level of a roof water tank, high-area water supply pressure, water consumption load, cleaning task, pump set state and valve position information; when cleaning is not triggered, controlling the opening of a life pressurization branch and the closing of a cleaning jet branch, driving the pump set to supply water at a constant pressure and dynamically adjusting the frequency; when cleaning is triggered, determining the working condition switching condition based on the liquid level, load, pressure, state and valve position information, allowing the closing or flow limiting of the life branch and the opening of the cleaning branch, increasing the pump set frequency and switching to the cleaning working condition; performing partitioned jet cleaning on the inside of the water tank through a cleaning nozzle; after cleaning is completed, reducing the pump set frequency, closing the cleaning branch, opening the life branch and restoring the constant pressure water supply working condition. The application realizes the dual-working-condition operation of constant pressure water supply and water tank cleaning through the same set of broadband multi-stage centrifugal pump set.

This utility model discloses a high-efficiency denitrification wastewater treatment device based on A2O. The internal space of the tank is divided into an equipment room, an influent tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, and a filtration tank by a partition. The sedimentation tank is equipped with a sludge return device and is connected to the anaerobic tank through the sludge return device. A plug flow zone is located in the middle of the anoxic tank, and an air-lift plug flow device is installed in the plug flow zone, dividing the anoxic tank into a first anoxic section and a second anoxic section. A drainage hole is provided on the partition between the aerobic tank and the sedimentation tank. A return hole is opened on the partition near the anoxic tank at the output end of the aerobic tank, and the output end of the aerobic tank is connected to the first anoxic section through the return hole. The area of ​​the return hole is larger than the area of ​​the drainage hole. This utility model can reduce the impact of wastewater influent load, improve wastewater treatment capacity, and reduce energy consumption.

The application provides a glass grinding and cleaning wastewater recycling device, which comprises a cleaning frame and a recycling pool, a plurality of drainage pipes are fixedly connected to the side of the cleaning frame, the recycling pool is on the ground on one side of the cleaning frame, and a plurality of coarse filter assemblies and a plurality of standby filter assemblies are further included. The coarse filter assemblies and the standby filter assemblies below the coarse filter assemblies are connected in parallel, when a coarse filter assembly is blocked and needs to be cleaned, the standby filter assembly below the coarse filter assembly can be automatically or manually switched to a working state to temporarily filter the wastewater, so that the blocked coarse filter assembly can be cleaned offline without affecting the normal work of other filter units, the continuity of the entire wastewater recycling process is ensured, and the utilization rate and the processing efficiency of the device are significantly improved.