Protection device for sealing gate grooves of diversion tunnel

Abstract

The invention discloses a protection device for sealing gate grooves of a diversion tunnel. The protection device for the sealing gate grooves of the diversion tunnel comprises a pair of protection devices (2) symmetrically arranged in the gate grooves (1) in the two sides of the diversion tunnel, wherein each protection device (2) is provided with a water-retaining panel (3); each protection device (2) is provided with a main-side groove-type fixed wheel device (6) corresponding to a main rail head (5) on a main rail surface (4) of the corresponding gate groove (1) in position; each protection device (2) is provided with a reverse-side groove-type fixed wheel device (9) corresponding to a reverse rail head (8) on a reverse rail surface (7) of the corresponding gate groove (1) in position;and a bearing slide way device (10) with high bearing strength is arranged on the side surface of each protection device (2). According to the protection device for the sealing gate grooves of the diversion tunnel, a smooth flow state of water flow while passing through the gate grooves is benefited, and high vibration resistance is achieved; and a lifting lug is arranged at the top of each protection device, so that firm fixing for the protection device in the corresponding gate groove is benefited, and the protection device is easily lifted out.

Description

technical field [0001] The invention relates to a protection device for diversion tunnels to block gate slots, and belongs to the technical field of metal structures of water conservancy and hydropower projects. Background technique [0002] For the diversion tunnel plugging gate, in order to improve the hydraulic flow state of the gate slot, the gate slot usually adopts type II, but because the construction diversion time is generally long, the gate slot is easy to be damaged under the long-term erosion of the water flow, especially the The impact of sand and gravel on the gate slot is more likely to damage the gate slot, resulting in poor flow state at the bottom of the gate slot when the lower gate is storing water, and the lower gate of the gate vibrates greatly and is easy to jam. In addition, after the gate is lowered, the water seal device and Poor contact and serious water leakage of the gate slot track will lead to greater difficulty in the construction of the plug;...

AI Technical Summary

Problems solved by technology

[0002] For the diversion tunnel plugging gate, in order to improve the hydraulic flow state of the gate slot, the gate slot usually adopts type II, but because the construction diversion time is generally long, the gate slot is easy to be damaged under the long-term erosion of the water flow, especially the The impact of sand and gravel on the gate slot is more likely to damage the gate slot, resulting in poor flow state at the bottom of the gate slot when the lower gate is storing water, and the lower gate of the gate vibrates greatly and is easy to jam. In addition, after the gate is lowered, the water seal device and Poor contact and serious water leakage of the gate slot track will lead to greater difficulty in the construction of the plug; although there are some projects in the prior art that diversion tunnels are blocked and the gate slots are equipped with protective devices, they are basically placed on the frame set by section steel or angle steel. In the door slot, the water flow will enter the door slot to form a backflow, which will easily damage the frame, and it is not easy to lift it out when the diversion hole is blocked to store water in the lower gate; therefore, the existing technology is not perfect enough and needs to be further improved

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