Drainage system and method of water turbine generator set for high-tailwater-level river

Abstract

The invention discloses a drainage system and method of a water turbine generator set for a high-tailwater-level river. A three-way valve (4) is arranged on a pipeline of a drainage main pipe of the drainage system (1) of the water turbine generator set; a first connector of the three-way valve (4) is connected with the drainage system (1) of the water turbine generator set; a second connector of the three-way valve (4) is connected with a plant leakage water collecting well (2); a third connector of the three-way valve (4) is connected with a one-way valve (5); the one-way valve (5) is connected with a first maintenance valve (6); the first maintenance valve (6) is connected with a pressure transmitter (7), and the pressure transmitter (7) is connected with downstream tailwater (3). The system and method have the advantages that a technical drainage scheme can be flexibly adjusted according to the water level condition of a downstream tailwater river channel, drainage is safe and reliable, and energy conservation is achieved.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a drainage system and a drainage method for a hydroelectric generating set of a river with a relatively high tailwater level. Background technique [0002] For power stations, the general workshops are arranged along the river bank. The air coolers and bearing oil coolers of hydroelectric generating units are generally drained to the water collection well of the workshop and then pumped to the downstream tail water by water pumps. The drainage method is relatively simple. , not energy efficient. Therefore, the existing technical drainage mode of the river hydroelectric generating set with higher tailwater flood level is still very unsatisfactory, and cannot meet the needs of actual use. Contents of the invention [0003] The object of the present invention is to provide a drainage system and a drainage method for a hydroelectric generator s...

AI Technical Summary

Problems solved by technology

[0002] For power stations, the general plant is arranged along the river bank. The air coolers of the hydroelectric generating units, the bearing oil coolers and other units are generally drained to the water collection well of the plant and then pumped to the downstream tail water. The drainage method is relatively simple. , no energy saving

Therefore, the existing technical drainage methods of river hydroelectric generating units with higher tailwater flood levels are still far from ideal, and cannot meet the needs of actual use.

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