Multifunctional device for promoting exchange of upper and lower water layers and resuspension release of sediment

Abstract

The invention belongs to the technical field of ecological regulation of aquaculture pond water quality and relates to fishery machinery used in promoting full exchange of upper and lower water layers of an aquaculture pond. During operation, a motor is started to drive centrifugal pump impellers to rotate through an output shaft so as to form pressure difference. Bottom water and sediment floccules are sucked up by a water inlet tap, then pass through a water delivery pipe, a centrifugal pump and a water outlet pipe, and finally are sprayed out through a spray-head onto the water surface. Thus, full exchange of upper and lower layers of a water body is achieved, and resuspension and re-release of sediment of the pond are promoted. By promoting full exchange of the upper and lower layers of a water body in the pond, the condition of insufficient dissolved oxygen at the lower water layer is improved, and accumulation of harmful substances such as nitrite, hydrogen sulfide, ammonia, methane and the like is effectively reduced. On the other hand, resuspension and re-release of pond sediment are promoted, thus releasing rich nutrient elements and abundant microbial populations in the sediment into the water body. The device of the invention is beneficial to scientific management of algal phase and bacteria phase, and self-purifying capability of a pond water-body is restored and enhanced.

Description

technical field [0001] The invention belongs to the technical field of ecological regulation and control of water quality in aquaculture ponds, and specifically relates to a fishery machine that promotes sufficient communication between the upper and lower bottom water bodies of aquaculture ponds, and is used for promoting sufficient up and down communication of the upper and lower water bodies of aquaculture ponds and promoting the resuspension and resuspension of sludge at the bottom of the ponds. Release again. Background technique [0002] In the high temperature season of aquaculture, especially in sunny days, the upper and lower layers of the pond water formed by the water temperature are very obvious. break in. This phenomenon of upper and lower stratification is not only water temperature stratification, but also leads to dissolved oxygen stratification, pH stratification, and even water body substance stratification. These stratifications have become a major obstac...

AI Technical Summary

Problems solved by technology

Since the impeller type or waterwheel type aerators, including the surge type aerators that have been newly put on the market in recent years, these fishery machinery are all stirring and turning up the water flow in the upper surface water layer, it is difficult to make the lower water, especially the bottom water and the upper layer water for full communication

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