TRT stator blade adjustable mechanism positioning method

Abstract

The invention relates to a TRT stator blade adjustable mechanism positioning method. Under the state that no rotor is placed, an upper bearing cylinder body, a lower bearing cylinder body, an upper guide ring body and a lower guide ring body are installed; with one stator blade on the portion, near the split, of the lower bearing cylinder body as the reference, lap joint gaps of adjacent blades are adjusted; after straight line drawing, through a bearing cylinder, crankshaft sliding blocks and stator blade rotating shafts, stator blade fixing bolts are reassembled, the upper guide ring body isdetached, the whole upper and lower bearing cylinders are hoisted out, and the lower guide ring body is taken out; the whole bearing cylinder is placed at a horizontal position and supports a guide ring at four points to cooperate with the guide ring; according to line drawing positions, the blades are adjusted to be fully closed, and non-lineated portion of the lower bearing cylinder body is completely lineated; positioning holes are machined again according to the current position of a stator blade adjustable mechanism; opposite reassembly is conducted according to detachment; and a pistonrod of a servo actuator completely stretches out and is connected with the guide ring. The problems that due to abrasion of stator blade adjustable mechanism parts, constant pressure adjustment of a blast furnace lags and start is difficult are effectively solved, the service cycle of the parts is prolonged, and the shutdown time is shortened.

Description

technical field [0001] The invention relates to the field of maintenance and installation of a TRT generator set, in particular to a positioning method for a TRT stator vane adjustable mechanism. Background technique [0002] The adjustable vane mechanism is the core part of TRT. The adjustable vane mechanism includes a housing, and a vane bearing cylinder is arranged inside the housing. The vane bearing is arranged on the vane bearing cylinder, and the vane is arranged under the vane bearing. A guide ring is arranged above the bearing, and the guide ring is connected with the stationary vane through the crank slider, and the circular rotation of the guide ring can be converted into the rotation of the stator vane through the crank slider, and the guide ring is connected with the servo actuator. When working, the piston rod of the servo actuator pushes the guide ring to achieve circular motion, and the guide ring drives the blades to rotate through the crank slider mechanism...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a positioning method for the TRT adjustable vane mechanism, which can solve the problems such as the delay in adjusting the constant pressure of the blast furnace and the difficulty in starting up caused by the wear of the components of the adjustable vane mechanism, and at the same time prolong the service life of the components and shorten the downtime

Images