Layered water taking device adopting water taking tower and water isolation curtain and suitable for hydropower station

Abstract

The invention provides a layered water taking device adopting a water taking tower and a water isolation curtain and suitable for a hydropower station. The layered water taking device comprises the water taking tower arranged in a water reservoir, the water isolation curtain and a height adjusting device arranged on the water taking tower, wherein the bottom end of the water isolation curtain is fixed to the bottom of the water reservoir and arranged in a mode of surrounding the water taking tower; and the height adjusting device is connected with the top end of the water isolation curtain andused for adjusting the height of the water isolation curtain, the bottom of the water taking tower is fixed to a bottom plate at the bottom of the water reservoir, the bottom end of the water isolation curtain is in sealing connection with the bottom plate, and thus the interior of the water isolation curtain and the periphery water area are isolated. According to the layered water taking device,based on a previous layered water taking facility, combination of the water isolation curtain with the adjustable height and the square water taking tower is adopted, the height of the curtain can beadjusted according to the demands of the temperature of discharged water at different periods, and the demands of reducing the influence of the temperature of the discharged water on the ecology aremet; and the layered water taking device has a series of advantages that the engineering quantity is small, the construction cost is low, implementing is convenient, operation is easy, the head loss is small, and an original building can be transformed, and the layered water taking device has the obvious advantage compared with layered water taking measures such as a stop log gate.

Description

technical field [0001] The invention relates to the fields of water conservancy, hydropower and environmental ecological engineering, in particular to a layered water intake device suitable for water intake towers of hydropower stations and water barrier curtains. Background technique [0002] After the completion of the hydropower dam, the hydrological regime and water environment in the reservoir area have been changed, resulting in stratification of the water temperature in the reservoir area. Especially in summer, the surface temperature of the water body is high, while the bottom of the reservoir cannot reach the bottom due to solar radiation, so the water temperature is very low. Sometimes the temperature difference between the surface of the reservoir and the bottom of the reservoir can reach 20 degrees Celsius. However, most of the water intakes of hydropower stations are located at the bottom of the reservoir, which directly leads to the discharge of low-temperature...

AI Technical Summary

Problems solved by technology

However, most of the water intakes of hydropower stations are located at the bottom of the reservoir, which directly leads to the discharge of low-temperature water, causing abnormal water temperature in the downstream, which in turn affects the habitat of the downstream river, and even affects agricultural irrigation.

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