A kind of L-shaped steam seal sheet molding device and production method

Abstract

The invention discloses an L-shaped labyrinth strip forming device and a production method. The L-shaped labyrinth strip forming device comprises a power device motor is arranged on a machine body, wherein a main gear and a driving gear are driven by the output of a main shaft of the motor; the driving gear is fixedly connected with main shafts of the upper and lower wheels of a forming wheel device, and drive the main shafts to rotate; guide blocks are arranged in connecting gaps of each group of forming wheels and the machine body; a slicing device is arranged between the third and fourth groups of forming wheels; an arc bending device is arranged behind the fourth group of upper and lower forming wheels, and is fixed with the machine body. The L-shaped labyrinth strip forming device and the production method have the advantages that the L-shaped labyrinth strip forming device and the production method can be used for realizing the bending, slicing and arc bending one-time production machining forming of an L-shaped labyrinth strip; the shape characteristics of the L shape of the L-shaped labyrinth strip and specific arc characteristics are ensured in a production process, the L-shaped labyrinth strips can be produced in batches, and the production efficiency of the L-shaped labyrinth strips is improved.

Description

technical field [0001] The invention belongs to the field of sealing device and steam sealing system of a steam turbine, and in particular relates to a forming device and a production method of an L-shaped steam sealing sheet. Background technique [0002] A steam turbine is a high-speed rotating machine consisting of a rotor and a stator. When the steam turbine is running, the rotor rotates at a high speed, and the cylinders and baffles are fixed. In order to avoid collision and friction between the moving and static parts of the steam turbine, an appropriate gap must be left. However, the existence of these gaps will inevitably produce steam leakage, which will not only reduce the efficiency of the unit, but also affect the safe operation of the unit. In order to solve the above problems, reduce steam leakage and prevent air leakage, and improve the thermal efficiency of the steam turbine, it is necessary to install a sealing device, that is, a steam seal, at the gap betw...

AI Technical Summary

Problems solved by technology

Not only there are cumbersome and time-consuming processes, but also the low precision of the formed products

[0004] At present, the steam seal device and production method for manufacturing the required specific shape and size at one time have not yet been involved.

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