3results about How to "Improve sewage effect" patented technology

This utility model discloses a blowdown structure for a waste heat boiler steam-water system, including an evaporator, an economizer, and a steam drum. Multiple blowdown pipes are fixedly connected to the bottom of the evaporator's inlet header. Each blowdown pipe is connected to a first valve, and all blowdown pipes converge on a single main discharge pipe. This main discharge pipe is made of a conventional material with high heat exchange efficiency, and an L-shaped heat exchange tube is welded to its outer circumference. The outlet end of the main discharge pipe extends from the end of the L-shaped heat exchange tube, and the connection between the two is welded and sealed. This utility model provides good blowdown performance and fully utilizes the thermal energy of the wastewater.

The invention relates to the technical field of pedestal pans, and discloses a water-saving pedestal pan which comprises a flushing part, an accelerating part, a sewage discharging part and a sewage discharging pipe which are sequentially communicated, at least one flushing opening is formed in the rear portion of the flushing part, the width of a water sealing surface at the top of the sewage discharging part is gradually reduced from back to front, and / or at least one boss is arranged on the inner wall of the accelerating part. The slope portion of the boss can play a role in guiding water flow passing through the slope portion, force facing the pollution discharge portion is applied to the part of water flow, and part of water flow is directly guided to the pollution discharge portion, so that water flow rushing to the pollution discharge portion from top to bottom along the inner wall of the acceleration portion is formed under the interaction of the water flow and other water flow. And the part of water flow can generate direct larger impact force on the dirt floating on the water sealing surface and the dirt in the dirt discharge part, so that the dirt can be discharged more easily.

The utility model belongs to the technical field of facility fishery breeding, and particularly relates to a circular fishpond breeding system. The actual activity range of fish can be increased, and the discharge effect of solid pollutants such as fish excrement and feed residues in the fishpond can be improved. The water distributor is inclined upward along the direction from the center of the circular fishpond to the edge, drives the upper water body to flow along the direction from the center of the circular fishpond to the edge, and makes the upper water body flow downward at the arc-shaped flow guide section. The lower water body of the circular fishpond flows along the bottom wall to the center of the circular fishpond. Part of the lower water body of the circular fishpond and part of the solid pollutants flow along the bottom wall, and are finally discharged from the sewage outlet. Another part of the lower water body of the circular fishpond flows upward along the outer wall of the vertical drainage pipe, enters the vertical drainage pipe from the upper end of the vertical drainage pipe through the drainage channel, flows vertically downward in the vertical drainage pipe, and is finally discharged from the sewage outlet. Another part of the solid pollutants is discharged from the sewage outlet along the water flow.