A method for hoisting an ultra-long steam turbine generator

Abstract

The invention discloses a method for hoisting an ultra-long steam turbine generator, which solves the problem in the prior art that the ultra-long steam turbine generator cannot be effectively hoisted, and can realize the hoisting of the ultra-long steam turbine generator smoothly and efficiently. The technical solution is: including the following steps: fixing the hoisting balance beam and the ultra-high pressure cylinder module, lifting and hoisting the hoisting balance beam by two bridge cranes to make it hoist in place; The module is hoisted in place; the lifting balance beam is hoisted by the hydraulic lifting device, and the generator stator is hoisted in place; after the combination and welding of the low-pressure cylinder and the outer cylinder are completed, the lower cylinder in the low-pressure cylinder is hoisted by a bridge crane, and passed through the Afterwards, align the internal partitions and flow gaps; place all low-pressure cylinders in place. After the shafting alignment is completed, use the balance beam to place the rotor in place, and then use a bridge crane to hoist the low-pressure upper inner cylinder, Outer cylinder in place.

Description

technical field [0001] The invention relates to the technical field of equipment hoisting, in particular to a hoisting method of an ultra-long steam turbine generator. Background technique [0002] During the installation process of the turbo-generator unit body, the hoisting and positioning of the initial large-scale body equipment is a key link. The operability of the hoisting and the selection of hoisting auxiliary tools directly affect the safety of the hoisting of the entire turbo-generator body and the construction period. Only by choosing safe and operable and more convenient hoisting tools and solutions, can the hoisting and positioning of the large-scale equipment of the turbo-generator body be completed safely and quickly. [0003] The inventor found that most of the 1000MW turbogenerator sets in China are composed of 4 cylinders or 5 cylinders at present, and are hoisted by cranes and other hoisting machinery. As for the 1000MW turbogenerator set composed of 6 cy...

AI Technical Summary

Problems solved by technology

As for the 1000MW turbogenerator set composed of 6 cylinders, the length of the shaft system exceeds that of similar units, which increases the workload for hoisting operations.

The existing hoisting methods cannot achieve smooth and efficient hoisting