An improvement method of an extra-high water head fixed wheel gate and the fixed wheel gate

Abstract

The invention discloses an improved method for an extra-high water head fixed wheel gate and the fixed wheel gate. The positive direction and the negative direction of the gate are both in three-edge limiting, so that deformation of the gate is reduced, front-and-back swing of the gate is prevented, vibration of the gate in the gate-closing process is reduced, and running safety of the gate is facilitated; the two sides and the top of the upstream face of the gate are each provided with a negative direction bearing, and the two sides and the top of the downstream face of the gate are each provided with a positive direction bearing; meanwhile, the upstream face of the gate is provided with a pressurizing water seal shaped like a Chinese character 'shan' and a P-shaped water seal from inside to outside, a water stopping defense line is additionally arranged, and prevention of water leakage is facilitated; gate joints are connected through bolts, so that the on-site welding workload and the after-welding defect eliminating difficulty are reduced, and the installation quality of the gate is guaranteed; and a manner that a supporting frame is arranged at the position, coinciding with the center line of a fixed wheel bearing, of a panel is adopted for a negative direction bearing sliding block, interference with installation of a fixed wheel is avoided, and the installation difficulty of the negative direction bearing sliding block is reduced. According to the improved method and the fixed wheel gate, the shortcomings in the prior art are avoided.

Description

technical field [0001] The invention relates to an improvement method of an extra-high water head fixed-wheel gate and the fixed-wheel gate, which belong to the technical field of metal structures of water conservancy and hydropower projects. Background technique [0002] For fixed-wheel gates, which are generally used for super-high water head discharge accident gates, a type of water stop is usually arranged in the upstream, and two columns of fixed-wheel supports are arranged downstream. Vibration is easy to occur during the process; in addition, the bolts of the reverse support slider are located in the double web of the side beam, which is likely to interfere with the installation of the fixed wheel device, making the installation difficult, and the water seal is set together. If there is uneven contact, it is easy to cause water leakage Phenomenon, the bottom water seal adopts the bar-type round head type. When the water seal cross-section exceeds 20mm, the bottom has ...

AI Technical Summary

Problems solved by technology

[0002] For fixed-wheel gates, which are generally used for extra-high water head discharge accident gates, a type of water stop is usually arranged in the upstream and two columns of fixed-wheel supports are arranged in the downstream. Vibration is easy to occur during the process; in addition, the bolts of the reverse support slider are located in the double webs of the side beams, which are likely to interfere with the installation of the fixed wheel device, making the installation difficult, and the water seal is set together. If there is uneven contact, water leakage will easily occur Phenomenon, the bottom water seal adopts the bar-type round head type. When the water seal cross-section exceeds 20mm, there is uneven compression and easy bending at the bottom, resulting in fatigue damage. In addition, the gate assembly adopts the on-site welding type. If the welding quality is poor, it is difficult to eliminate defects on site, so The current level of technology is still not perfect

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