Anti-icing system for spillway gate of hydropower station

Abstract

The invention provides an anti-icing system for a spillway gate of a hydropower station, which comprises a bottom hole electric heating ice melting device arranged at a spillway bottom hole radial gate, and a surface hole electric heating ice melting device and a bubble ice melting device which are arranged at a surface hole radial gate, the bottom hole electric heating ice melting device and the surface hole electric heating ice melting device are arranged on a bottom hole and a lintel of the surface hole arc-shaped gate correspondingly and used for preventing icing between the arc-shaped gate and a rail. The bubble ice melting device is arranged on the upstream side of the surface hole arc-shaped gate and used for making the water surface generate bubbles to achieve ice melting. The electric heating ice melting device is additionally arranged at the gate track, meanwhile, the bubble ice melting device is additionally arranged at the surface hole arc-shaped gate track, the safety and reliability of the SK hydropower station spillway during power generation are greatly improved through application of the electric heating ice melting device and the bubble ice melting device, and the fault maintenance cost of the arc-shaped service gate in later power generation is greatly saved.

Description

technical field [0001] The invention belongs to the technical field of hydropower station construction, in particular to an anti-icing system for a spillway gate of a hydropower station. Background technique [0002] In the construction of the spillway of the hydropower station, the entire spillway is composed of cast-in-place concrete and gates. As far as the construction of the spillway of the SK Hydropower Station in Pakistan is concerned, the spillway is 41.5m high and 62m wide. The cast-in-place concrete of the spillway EL.2198-2217.5 includes the right wall, No. 1 / 2 / 3 / 4 / 5 pier and the left wall, and the gates include 1 / 2 / 3 / 4 / 5-hole arc gates and 1-hole inspection gate Among them, the 5-hole arc gate is a working gate, which is in a working closed state for a long time during the power generation process of the hydropower station. The 5-hole arc gate is powered by a hydraulic hoist to open and close the arc-shaped working gate. Using the gate, when the arc gate fails, ...

AI Technical Summary

Problems solved by technology

At the same time, the 10-hole arc gates of the bottom hole and the surface hole of the spillway are all working in water, and the contact between the gate and the track is still water, which is prone to freezing. In winter, it is easy to freeze and cannot be opened and closed normally.

Images