3results about How to "Increase return flow" patented technology

The utility model belongs to the technical field of domestic water, and particularly relates to a diaphragm type balance valve core for a pipe-in-pipe and a balance valve. The balance valve is provided with a balance valve element and comprises a balance valve frame, a balance valve element and a balance valve element, the valve core seat is mounted on the balance valve frame; the diaphragm component is installed on the valve element seat or in the balance valve frame, and a balance channel is arranged between the valve element seat and the diaphragm component or between the balance valve frame and the diaphragm component; the diaphragm component can deform and change the sectional area of the balance channel according to the pressure of the first channel. The medium pressure is large, the deformation amount of the diaphragm component is large, and the backflow amount of the balance channel is small, so that the backflow amount of the branch away from the circulating pump is larger than or equal to the backflow amount of the branch close to the circulating pump, the effect that the backflow amount is small and large is achieved, and the circulating efficiency and the water quality of the branch at the far end are guaranteed.

The utility model relates to a closed heat channel with an adjustable flow guide angle in the field of heat channels, which comprises a channel frame, a skylight assembly and a channel end door, the skylight assembly is connected with an air return duct, the skylight assembly comprises a keel support, a spoiler and a steering engine, the air return duct is communicated with a heat flow channel through the keel support, and the spoiler is connected with the keel support through a rotating shaft. A turning arm is arranged on the spoiler, the steering engine is installed on the side wall of the keel support, a swing arm of the steering engine is connected with the turning arm through a connecting rod, and when the swing arm rotates, the turning arm is driven through the connecting rod, so that the spoiler turns over with the rotating shaft as the axis, and a temperature sensor and a smoke sensor corresponding to the skylight assembly are arranged in the heat flow passage. A controller is arranged in the channel frame, the steering engine, the temperature sensor and the smoke sensor are all electrically connected with the controller, the controller dynamically calculates the optimal flow guide angle according to temperature gradient data, the steering engine is driven to synchronously adjust the overturning angles of the spoilers, and the airflow path is made to be accurately matched with the equipment heat dissipation requirement.

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.