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Element extension gate control and operation curve design and application thereof

A curve design and sluice technology, applied in coastline protection, water conservancy engineering, sea area engineering, etc., can solve problems such as the inability to express the discharge flow of floodgates

Active Publication Date: 2013-11-06
GUANGXI ELECTRIC POWER IND INVESTIGATION DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ①The projects built in Guangxi are mainly for power generation, and the original "curve" cannot express the relationship between the reference flow of power generation and the discharge flow of floodgates;

Method used

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  • Element extension gate control and operation curve design and application thereof
  • Element extension gate control and operation curve design and application thereof
  • Element extension gate control and operation curve design and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] Application Curve of Extended Gate Control of Overflow Surface Orifice Elements in Pingban Hydropower Station

[0127] [Design conditions]

[0128] The Hongshuihe Pingban Hydropower Station is a riverbed-type power station mainly for power generation. It has installed 3 hydro-generator sets. The overflow dam has 5 overflow surface holes, each hole has a clear width of 17m, and the gate retaining height is 17.3m. The weir type is WES type, and the weir height above the bottom of the bucket is 24.7m. Flood discharge depends entirely on 5 overflow surface holes, when the incoming water flow Q>9164m 3 / s, open the gate to release the flood. The downstream water level does not affect the outflow from the sluice hole. The surface hole adopts the combined energy dissipation device of the top drop-flow type wide tail pier and the bucket type stilling basin. The hydraulic model test provides: the free flow discharge capacity curve of the gate hole; Relational curve; it is re...

Embodiment 2

[0144] The operation curve of the extended gate control of the elements of the discharge sluice of the Letan Hydropower Station

[0145] [Design conditions]

[0146] Hongshui River Letan Hydropower Station Project is a water conservancy and hydropower project that mainly generates power, and also has comprehensive utilization benefits such as shipping and irrigation. The power station is a river bed type, with 4 sets of generator hydro-generator units with a single unit capacity of 150MW installed; the overflow dam is equipped with 8 overflow surface holes, each hole has a clear width of 15m, and the water retaining height of the gate is 16m. The overflow weir type is WES type, and the gate pier is a conventional straight and equal thickness type. The energy dissipator adopts the stilling basin of the bucket type to dissipate energy. The elevation of the bottom and ridge of the basin is designed to be high and low according to the change of the terrain: the riverbed has 4 hol...

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Abstract

The invention discloses an element extension gate control and operation curve design and application thereof. An element extension gate control operation curve comprises: 1, a gate hole free discharge element extension gate control and operation curve design method which is used for extending a curve hydraulic element and reflecting seven element correlation curves with four quadrant coordinates and comprises ten elements; and 2, a gate hole submerged discharge element extension gate control and operation curve design method which is used for extending a curve hydraulic element and reflecting eight element correlation curves with four quadrant coordinates and comprises ten elements. The curve is applied to an active gate control mode such as the element extension gate control and operation curve of a sluice gate of the Pingban Hydropower Station, and is applied to a passive gate control mode such as the element extension gate control and operation curve of a sluice gate of the Letan Hydropower Station. The invention has the advantages that: the element extension gate control and operation curve is a set of complete element extension gate control and operation curves, and convenience is brought to the operation of engineering operation and management personnel.

Description

technical field [0001] The invention relates to the field of water conservancy and hydropower engineering, in particular to the design and application of element-expanded gate control operation curves. Background technique [0002] The control and operation of the sluice gates of water conservancy and hydropower projects is the main element to ensure the safe operation of the project. If the gates are not properly controlled, it will produce unexpected flow patterns, cause serious erosion damage, and endanger the safety of the project. In the operation design of the sluice, it is based on the hydraulic design and hydraulic model test results to formulate the gate control operation mode suitable for this project. [0003] The previous research and application of the "Gate Control Application Curve" are: (1) In the current national "Sluice Design Code" SL265-2001, the "Gate Control Application Curve" expressed in four quadrants of rectangular coordinates, It can only reflect ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/20
Inventor 罗秉珠徐婷兰李布雳丰伟卓丽
Owner GUANGXI ELECTRIC POWER IND INVESTIGATION DESIGN & RES INST
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