Easily detachable water turbine maintenance platform

Abstract

The invention discloses an easily detachable water turbine maintenance platform, which comprises a platform surface and carrying beams arranged below the platform surface and used for carrying the platform surface, and is characterized in that brackets are mounted on both sides of a mandoor of a draft tube of the water turbine, and an upper cross beam and a lower cross beam are mounted between the brackets on both sides; the horizontal distance between the lower cross beam and the mandoor is smaller than that between the upper cross beam and the mandoor; rollers are arranged on opposite side surfaces of the upper cross beam and the lower cross beam respectively; a height adjusting device is mounted between the upper cross beam and the brackets; the carrying beams comprises a main beam andan auxiliary beam; the main beam of the maintenance platform is mounted between the rollers of the upper cross beam and the rollers of the lower cross beam; the auxiliary beam of the maintenance platform is mounted between the main beam and the tube wall of the draft tube; and the wall tube of the draft tube is provided with a matching part matched with the end part of the main beam to carry the main beam. The maintenance platform provided by the invention has the advantages of compact structure, convenience and stableness in use, easiness for mounting and dismounting, and the like.

Description

Technical field [0001] The invention relates to a conventional Francis hydraulic turbine and a draft tube maintenance platform of a water pump turbine, in particular to a hydraulic turbine maintenance platform that is easy to assemble and disassemble. Background technique [0002] There are mainly two methods for erecting the main beam of the existing hydraulic turbine overhaul platform, hoisting and flat installation. [0003] Hoisting is a commonly used method for existing maintenance platforms. For example, an elevating tailwater maintenance platform is disclosed in Chinese Invention Patent Publication CN 101560826, which includes a lifting device, platform main beam, platform auxiliary beam, support beam and platform slab, The lifting device is connected and fixed on the main girder of the platform, the sub-beams of the platform are cross-fixed on the main girder of the platform, the supporting beams are fixed to the main girder of the platform and / or the sub-beam of the platfo...

AI Technical Summary

Problems solved by technology

Compared with the hoisting method, this method reduces the difficulty of installation, but two small doors are set on the tapered pipe, which affects the internal measurement flow channel, increases the difficulty of design and manufacture, and also brings the reliability of sealing. question

In addition, in order to reduce the friction force of the main beam pushing, several sets of rollers need to be added on both sides of the corridor, which requires the installation foundation of the main beam groove and rollers to be preset when pouring concrete, resulting in complicated concrete pouring and low space utilization Wait

Images