Water-filling power station

Abstract

The invention relates to the technical field of hydropower. Water in a reservoir is not used in a water-filling power station, and a single machine can generate 10-15 percent of electric power. Surplus fall at the upstream is shifted to the downstream, which is performed in the following steps: tail water of a water turbine is blocked up by a thinned enclosing wall with lashing wires on the three sides, and the tail water is supplied to an auxiliary engine to generate the electricity. The auxiliary engine is located on a short bridge at the tail end of the enclosing wall. The host engine observes that the tail water is filled, an adjusting valve can be automatically turned on to compensate the surplus fall (limitation on permission of intensity of a tail water chamber) to recover the original flow capacity and the original power so that the power generation power of the auxiliary engine is considerable. When the upstream water level is not high and the surplus fall is not enough, a bottom gate at the tail end of the enclosing wall is opened to discharge, and the host engine automatically generates the electricity while the auxiliary engine stops the operation. The surplus fall is the fall storage to increase water storage capacity in the reservoir. Few units are operated in the less-harvest season to reserve certain storage. The surplus fall cannot take part in electricity generation of the host engine, and the product of the surplus fall and the flow rate represents the surplus power which is lost on the adjusting valve along with the outflow of the water for electricity generation of the water turbine. The invention can change the history that the surplus fall cannot generate the electricity and recycles the power lost on the adjusting valve.

Description

Technical field: [0001] hydroelectric power Background technique: [0002] Traditional hydropower stations can get more electric power, but let it go away. It is now described as follows: [0003] For the sake of illustration, revisit the definitions of several terms in hydropower: [0004] Drop: The difference between the upstream water level and the downstream water level. For the convenience of description, this paper temporarily assumes that the downstream water level remains unchanged. [0005] Necessary drop: It is the minimum drop for a single machine to generate power at full power. Also known as the rated water head, the corresponding upstream water level is called the minimum water level. [0006] To generate electricity at full power under the necessary drop, the regulating valve (guide vane) of the water turbine is fully opened. It is considered that the fully opened regulating valve has no resistance, and the resistance of the water diversion pipeline is v...

AI Technical Summary

Problems solved by technology

The hydropower station with the task of peak regulation has a large gap in surplus

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