Method and system for reducing water surface evaporation by using silicon carbide powder

Abstract

The invention discloses a method and system for reducing water surface evaporation by using silicon carbide powder, and particularly relates to the technical field of reservoir water saving. The method comprises the following steps that the addition amount of the silicon carbide powder is determined according to the water body area of a target water area, wherein the silicon carbide powder is of colorless, transparent or light green silicon carbide crystals; and under the condition of outdoor natural evaporation, the colorless transparent or light green silicon carbide powder is sprayed on the water body surface of the water area, a silicon carbide reflection film can be formed on the water body surface, based on the reflection characteristic of the silicon carbide crystals, it is equivalent to that a reflection layer is formed on the water body surface, the reflection layer can effectively reflect solar rays under natural conditions, and therefore, water evaporation of the target water area is reduced.

Description

technical field [0001] The invention relates to the technical field of reservoir water saving, in particular to a method and system for reducing water surface evaporation by using silicon carbide powder. Background technique [0002] Evaporation is one of the leading factors in the natural water cycle process and an important component of the three major elements of water balance. The arid region in Northwest my country is one of the areas with the most severe water shortage in China, with an average annual precipitation of 230 mm and an evaporation capacity of 8 to 10 times that of precipitation. The amount of water lost through ineffective evaporation greatly reduces the effective utilization of the reservoir. If the ineffective evaporation of the reservoir can be effectively suppressed, a large amount of water resources can be saved. [0003] For the research on reducing reservoir evaporation technology, there are mainly methods such as adding chemical reagents, physica...

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Problems solved by technology

Due to the strong volatility of the chemical reagent method, its inhibitory effect is affected in the hot summer climate in Northwest China

Physical covering method, because polyethylene products are mostly used, under hot and windy climate conditions, the covering plate is easy to weather, and the plastic products produced after weathering are not easy to decompose, causing secondary pollution and affecting the growth of aquatic organisms in the reservoir ; Although the monomolecular film can inhibit the evaporation efficiency of the water surface better, its popularization and application is not ideal due to the high cost of the monomolecular film, the constraints of factors such as wind force, sand dust, wind and waves in the external environment

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