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A Double-layer Reservoir Method for Greatly Raising the Benefits of Flood Storage and Relief

A reservoir and double-layer technology, applied in the field of new reservoirs, can solve the problem of abandoning the double-layer reservoir scheme, and achieve the effects of improving navigation capacity, reducing flood disasters, and increasing runoff.

Active Publication Date: 2018-05-18
河南水环境勘测设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] 2. The power generation cost of double-layer reservoirs is 1.5 to 2 times higher than that of conventional reservoirs, causing hydropower operators to abandon the double-layer reservoir plan. This problem requires state funding and support to solve

Method used

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  • A Double-layer Reservoir Method for Greatly Raising the Benefits of Flood Storage and Relief
  • A Double-layer Reservoir Method for Greatly Raising the Benefits of Flood Storage and Relief

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specific Embodiment approach 2

[0056] The specific implementation of the B-type double-layer reservoir.

[0057] Only the canyon-shaped reservoirs with deep valleys can have the location and space to increase the second layer of reservoirs, and at the same time, there must be sparsely populated, scattered cultivated land, and no important towns along the river; the upstream section of the Jinping II Hydropower Station has such conditions. According to preliminary calculations, the flood storage capacity of the second layer of the Jinping II double-layer reservoir is as high as 37.1 billion m3, and the flood storage capacity of the first layer is 4.1 billion m3.

[0058] Such as figure 2 As shown, the double-layer reservoir dam E is built in the upstream direction of the outlet of the existing Jinping II hydropower station (after the construction of the double-layer reservoir, the purpose of the power station is changed to the lower half of the storage capacity of the second-layer reservoir 8). The height ...

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Abstract

The invention discloses a double-layer reservoir method capable of greatly increasing flood storage and drought relief benefits. The double-layer reservoir method disclosed by the invention has the beneficial effect that floods and droughts are greatly reduced, and the anti-flood capacity of stem streams of the Yangtze River is improved to be extremely high. The technical scheme of the invention is as follows: the capacity of one reservoir is increased on the basis of common reservoirs in deep valleys with sparse populations, scattered cultivated land and no important cities and towns; and the capacity is completely a flood storage capacity, and is used for storing redundant flood during a flood season and releasing the stored flood during a dry season, and the unique dispatching manner helps all the reservoirs in a downstream direction to greatly increase comprehensive benefits.

Description

Technical field: [0001] The invention relates to water conservancy structures, in particular to a novel reservoir. Background technique: [0002] my country has a vast territory, numerous rivers, and frequent floods. About 35% of the country's cultivated land, 40% of the population, and 70% of industrial and agricultural production are threatened by river floods. As many as hundreds of billions. In 1998, the Yangtze River and Songhua River floods caused direct economic losses as high as 255.1 billion yuan, accounting for 85% of the total losses of natural disasters in that year. Flood disaster losses ranked first among all kinds of natural disasters. It threatens the safety of people's lives and properties, and affects social stability and the sustainable development of national economic construction. Droughts will appear again during dry periods, and severe droughts frequently occur in the Yangtze River Basin in the 21st century, such as the severe drought in Sichuan and C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B1/00
CPCE02B1/00
Inventor 胡作龙
Owner 河南水环境勘测设计有限公司
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