A dam flood control emergency treatment method

An emergency treatment and dam technology, applied in water conservancy engineering, marine engineering, coastline protection, etc., can solve problems such as difficulty in comprehensively considering the maximum number of simultaneous openings at the flood discharge location, poor flood discharge effect, and large randomness.

Active Publication Date: 2021-06-04
POWERCHINA ZHONGNAN ENG
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AI Technical Summary

Problems solved by technology

[0006] 3) Under the condition of multi-hole flood discharge gates, it is difficult for the operator to comprehensively consider the optimal flood discharge location, dam body stilling force, and the maximum number of simultaneous gate openings allowed by the dam power consumption in a short period of time. poor

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  • A dam flood control emergency treatment method
  • A dam flood control emergency treatment method
  • A dam flood control emergency treatment method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the modification scheme of a conventional hydropower station in Hunan. The basic situation of the power station is as follows: There are left and right river channels in the dam area of ​​the power station. The left channel is equipped with 14-hole gates, and the right channel is equipped with 11-hole flood gates. Under normal circumstances, the right channel gate is a flood gate.

[0029] Such as figure 1 As shown, an embodiment of the present invention includes:

[0030] Step A, design the flood gate dispatch table (or linkage strategy table, conversion relationship between machine flow and unit output, etc.).

[0031] Step B, real-time detection of unit output, and when the total load shedding of the unit exceeds the set value of 20MW, the linkage control opening of each gate is calculated according to the flood discharge gate schedule and the current flood opening of the gate; among them, th...

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Abstract

The invention discloses a flood control emergency treatment method for a dam, which includes: step A, designing a flood gate scheduling table; and the current flood opening of the gates to calculate the linkage control opening of each gate; step C, obtain the gate linkage opening scheme according to the linkage control opening of each gate calculated in step B, and then determine the control command of each gate by the gate linkage opening scheme; step D. Send control commands for each gate according to the set control strategy, and open the corresponding gate for flood discharge. The invention can automatically link the gate to carry out flood discharge after the load shedding of the unit, the control method is efficient and reliable, the flood discharge effect is good, and the safety guarantee is provided for the safe operation of the reservoir area of ​​the power station.

Description

technical field [0001] The invention belongs to the field of water conservancy and hydropower engineering, in particular to an emergency treatment method for dam flood control. Background technique [0002] Conventional hydropower station flood gate control methods are based on the actual situation, and the operator manually controls the gate flood discharge remotely. However, due to the insufficient flood regulation performance of the run-of-the-river hydropower station, the unit load shedding is extremely sensitive to changes in the reservoir water level. After the load shedding of the unit, the guide vanes of the water turbine will be closed quickly, and the pressure of the pressure pipe of the water diversion system will change sharply and form a large water hammer pressure. The diversion water flow for power generation is accumulated in front of the reservoir dam. When the water flow is large during the flood season, it is easy to quickly form a stable water flow after ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/20
CPCE02B7/20
Inventor 何哲文罗云李力黄开斌
Owner POWERCHINA ZHONGNAN ENG
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