Pressurized support type flat steel gate

Abstract

The invention discloses a pressurized support type flat steel gate, which comprises a steel gate body arranged in a gate groove, and a plurality of pairs of pairs are arranged along the height direction of the steel gate body on the backwater surface of the steel gate body near the left and right side edges. Pressurized support, the pressurized support is a box-shaped structure with an opening outward, and the opening edge of the pressurized support is fitted with the track fixed on the inner side wall of the gate groove to form a water storage cavity; The steel gate body is provided with a charging main pipe that penetrates horizontally from its water-facing surface, and the charging main pipe is respectively communicated with the water storage cavity through the charging branch pipes extending to both sides; A pressurized water pump is arranged thereon, and a flow regulating valve is arranged on each of the pressure charging branch pipes. The invention has the advantages of simple structure, low cost, simple installation and use, low maintenance cost, and greatly reduced opening and closing force of the steel gate body during operation.

Description

technical field [0001] The invention relates to a flat steel gate for water conservancy and hydropower projects, in particular to a pressurized support type flat steel gate applied to a large orifice and a high water head. Background technique [0002] The gates used in the existing water conservancy and hydropower projects are all traditional sliding bearings or rolling bearings (rolling bearings also include fixed wheel bearings, sprocket bearings, etc.). The sliding bearing has a high friction coefficient and is not suitable for large orifice and high-head gates; although the fixed wheel bearing is suitable for large orifice and high-head gates, the fixed wheel bearing has limited load, large manufacturing and installation workload, and complex technical processes. , and requires a large reserved space for the door slot, and the structure of the embedded parts is complex; the sprocket bearing is a rolling bearing form suitable for large orifices and can withstand ultra-hi...

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Problems solved by technology

The friction coefficient of the sliding bearing is high, so it is not suitable for large orifice and high water head gates; although the fixed wheel support is suitable for large orifice and high water head gates, the load of the fixed wheel support is limited, the manufacturing and installation workload is large, and the technical process is complicated , and requires a large reserved space for the door slot, and the structure of the embedded parts is complicated; the sprocket support is a rolling support form suitable for large orifices and can withstand super high water heads, but it is extremely difficult for manufacturing, installation and maintenance. Strict requirements, and the cost is very expensive. At present, there are only a few projects using sprocket support in China

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