Constructed wetland and method for controlling heat preservation of constructed wetland

Abstract

The invention relates to the field of constructed wetlands, and discloses a constructed wetland and a method for controlling heat preservation of the constructed wetland. The constructed wetland comprises a plurality of constructed wetland units, and each constructed wetland unit comprises a shell, a water supply and drainage device which communicates with the shell and is used for filling or draining water into or out of the shell, and a temperature conduction assembly positioned at the top of the shell, wherein the heat conduction performance of the temperature conduction assemblies is higher than that of water in the shell, so that when the temperature conduction assemblies are in contact with water in the shell, the temperature conduction assemblies can at least facilitate the formation of an ice layer by water in contact with the temperature conduction assemblies when the external environment temperature is lower than or equal to zero DEG C. The artificial wetland disclosed by theinvention has a better heat preservation effect.

Description

technical field [0001] The invention relates to the field of constructed wetlands, in particular to a constructed wetland and a method for controlling the constructed wetland to keep warm. Background technique [0002] When the constructed wetland operates in winter or cold regions, it is necessary to ensure that the water in the wetland has a certain temperature to reduce the heat consumption of the constructed wetland. Constructed wetlands are mainly composed of multiple wetland cells. When the ambient temperature is lower than zero, an ice layer with a certain thickness is often formed on the top layer of the water in each wetland cell, and the ice layer can have a certain thermal insulation effect on the water in each wetland cell. [0003] However, the above-mentioned ice layer is naturally formed by water at the ambient temperature below zero. Due to the instability of the ambient temperature, the thickness of the ice layer is often thinner or thicker. Therefore, the ...

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Problems solved by technology

[0003] However, the above-mentioned ice layer is naturally formed by water at an ambient temperature below zero. Due to the instability of the ambient temperature, the thickness of the ice layer is often thinner or thicker. Therefore, the naturally formed ice layer generally has the following characteristics: One disadvantage: first, depending on the ambient temperature alone, it takes a long time for the ice layer to form, which is not conducive to quickly and effectively insulating the wetland cells; second, when the thickness of the ice layer is thin, not only the wetland The thermal insulation effect of the cells is poor, and its strength is also low. Therefore, when the constructed wetland operates normally, under the action of the viscosity of the water and the ice layer, the flowing water is likely to cause the ice layer to fall off; When the thickness is thicker, although it has a good thermal insulation effect, the thicker ice layer is likely to directly affect the normal operation of the constructed wetland

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