Well water level control device

Abstract

The invention relates to the technical field of the water level control technology for a water collecting well in a small-sized hydropower plant and provides a water level control device for a water collecting well. The device comprises a submersible pump, a feedback control device and a water level monitoring tube fixedly installed inside the water collecting well. Water inlet holes are arranged uniformly around the outer side of the water level monitoring tube. The inner ends of the water inlet holes are in communication with the inner cavity of the water level monitoring tube. A high-water-level electrode tip, a medium-water-level electrode tip and a low-water-level electrode tip are respectively fixed inside the upper part, the middle part and the lower part of the inner cavity of the water level monitoring tube. The motor of the submersible pump is electrically connected to the feedback control device via a pump cable. The device is reasonable and compact in structure, and convenient to use. The water level in the water collecting well is monitored in real time by the water-level electrode tips, and the switching-on / off state of the submersible pump is automatically controlled by the feedback control device. Therefore, the automatic operation of the submersible pump is realized. Meanwhile, the damage rate of the submersible pump and a relay is lowered. Moreover, the labor intensity and the maintenance workload of inspectors are significantly reduced. The power generation cost is saved.

Description

technical field [0001] The invention relates to the technical field of water level control of a water collection well of a small hydropower plant, and relates to a water level control device for a water collection well. Background technique [0002] At present, the sewage output during the operation of the existing small-scale water-diversion hydropower plants, such as the cooling water and lubricating water used by the hydroelectric generator sets, and the excess sewage on the top cover, are generally discharged to the water collection well through the drainage pipe. When the water level of the water collection well is high, the sewage in the water collection well needs to be discharged through the submersible pump. If the water level of the water collection well is too high, not only will the ground in the factory building be slippery and the water will splash everywhere, which will make it difficult for the personnel on duty to inspect, and will cause Long-term soaking an...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a water level control device for a water collection well, which overcomes the deficiencies of the prior art and can effectively solve the problems of the existing water level control system for a water collection well, which require special personnel to be on duty for manual control, time-consuming and labor-intensive operation, and frequent operation is easy to damage the contactor and submersible pumps, affecting the normal operation of power generation equipment and posing potential safety hazards

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