Single-diversion-tunnel water-power engineering hoist arrangement structure

Abstract

The invention discloses a single-diversion-tunnel water-power engineering hoist arrangement structure. The single-diversion-tunnel water-power engineering hoist arrangement structure comprises a dam body (1) which is of a single diversion tunnel structure; the top surface of the dam body (1) is spread with two portal crane rails (14), and the two rails are symmetrical to the center line (11) of asingle diversion tunnel; the two ends of the portal crane rails (14) are provided with portal crane stop heads (17); the portal crane rails (14) are provided with a bidirectional portal crane (15) operating along the portal crane rails (14); and the upstream side of the bidirectional portal crane (15) is provided with two symmetrical rotation lifting devices (16). According to the single-diversion-tunnel water-power engineering hoist arrangement structure, operation of a trash holding fence, a layered water getting stop log gate and an bulkhead gate as well as installing and overhauling of a quick gate hydraulic hoist can be completed through only one bidirectional portal crane, one bidirectional trash removal portal crane can be saved, in addition, the end, perpendicular to the waterflowdirection, of the water inlet does not need to be provided with the layered water getting stop log gate and a gate chamber of the bulkhead gate so that the engineering investment can be reduced.

Description

technical field [0001] The invention relates to an arrangement structure of a hoist for a hydropower project of a single diversion tunnel, and belongs to the technical field of metal structures of a water conservancy and hydropower project. Background technique [0002] For hydropower projects, trash racks, layered water intake stack gates, maintenance gates and fast gates are usually arranged in sequence along the water inlet flow direction. Adopt two-way cleaning door machine operation, set one fast gate for each hole and use a single-cylinder vertical hydraulic hoist to operate, and set up a multi-hole shared inspection gate and use two-way door machine operation, consider storing stacked beams for layered water intake Gates and maintenance gates require layered water intake stacking gates and maintenance gates to be installed at the end of the vertical water flow of the water inlet. The existing technical scheme is reasonable for hydropower projects with more than two wa...

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Problems solved by technology

[0003] However, for single-diversion tunnel hydropower projects with two generators in one tunnel or three generators in one tunnel, because there is only one flow channel, the number of trash racks and layered water intake stacking beam doors is small, and there is only one maintenance gate and one fast gate. The two-way cleaning door crane and the two-way door crane of the existing technology are used to increase the investment more than the whole project; in addition, the layered water intake stacking gate and the maintenance gate are arranged at the end of the vertical water flow direction of the water inlet. The gate bank will greatly increase the amount of excavation and concrete pouring, especially for some water inlets that are difficult to excavate. Therefore, there are still deficiencies in the existing technology and need to be further improved

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