Overhaul device of steam turbine of thermal power plant

Abstract

The invention discloses an overhaul device of a steam turbine of a thermal power plant. The overhaul device includes at least two support bases, each support base includes two rollers with parallel axes, the rollers are used for supporting the steam turbine in cooperation with the outer circumferential faces of steam turbine core shafts, the rollers are mounted on the support bases through screw slider mechanisms, and the screw slider mechanisms are used for adjusting the distance between the axes of every two corresponding rollers and are used for being matched with the steam turbine core shafts with different diameters. At least one of the support bases is provided with a sliding pair used for adjusting the distances between the support base and other support bases. The paired rollers are arranged to be used for supporting the steam turbine core shafts, the steam turbine can be more stably supported from multiple points, supporting of the rollers can achieve matched transmission of the rollers and the steam turbine core shafts, the angle of the steam turbine is adjusted, and the effect of obtaining the best overhaul angle is achieved.

Description

technical field [0001] The application relates to the field of steam turbine overhaul, in particular to a thermal power plant steam turbine overhaul device. Background technique [0002] A steam turbine is a rotary power machine that converts steam energy into mechanical work, also known as a steam turbine. It is mainly used as a prime mover for power generation, and can also directly drive various pumps, fans, compressors and ship propellers. The exhaust steam or mid-extraction steam of the steam turbine is used to meet the heating needs of production and life, and in thermal power plants, the steam turbine is a key energy supply tool. [0003] The inventors found that the existing maintenance of steam turbines requires hoisting the steam turbines onto the placement device, and for different sizes of steam turbines, the placement of the devices often brings greater trouble to the placement of the steam turbines because the size cannot be adjusted. Moreover, during the main...

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Problems solved by technology

[0003] The inventors found that the existing maintenance of steam turbines requires hoisting the steam turbines onto the placement device, and for different sizes of steam turbines, the placement of the devices often brings greater trouble to the placement of the steam turbines because the size cannot be adjusted. Moreover, during the maintenance process, for some positions with low heights, due to the huge size of the steam turbine, it is cumbersome to change the relative maintenance position by lifting and flipping, and consumes a lot of energy, which is inconvenient in a limited space and often requires maintenance personnel. Squat or lie flat under the steam turbine. In this state, the maintenance personnel work hard and are prone to fatigue. The maintenance progress is slow, which reduces the efficiency of the entire maintenance process.

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