Axial Exhaust Exhaust Cylinders Supported by Bearing Blocks

Abstract

The invention provides an axial exhaust steam exhaust cylinder supported by a bearing seat on the ground, which includes an exhaust cylinder shell, which is fixed on the foundation of the exhaust cylinder, and a bearing seat for supporting the rotor bearing is arranged inside the exhaust cylinder shell, and the bearing seat is arranged There are a plurality of oblique supports protruding to the outside of the exhaust cylinder casing, and the ends of the oblique supports protruding to the outside of the exhaust cylinder casing are fixed on the exhaust cylinder foundation. The axial exhaust steam exhaust cylinder, the bearing seat is supported on the ground and the bearing seat is isolated from the exhaust steam, which solves the problems faced by the current block type axial exhaust steam exhaust cylinder and improves the stability of the axial exhaust steam turbine unit. In addition, the axial exhaust steam exhaust cylinder can be applied to the air-cooled unit without increasing the dynamic and static clearance to improve the efficiency of the air-cooled unit. The steam exhaust cylinder involved in the present invention is the axial exhaust steam exhaust cylinder supported by the bearing seat on the ground, and the bearing seat is completely isolated from the exhaust area, and is not affected by the change of exhaust parameters, and can adapt to air cooling and wet cooling at the same time.

Description

technical field [0001] The invention relates to an axial steam exhaust cylinder supported on the ground by a bearing seat. Background technique [0002] The steam turbine is one of the key power equipment in the construction of a power station. It is an energy conversion device that converts thermal energy into mechanical energy and then into electrical energy. The high-temperature and high-pressure steam generated by the boiler passes through the steam turbine to convert thermal energy and pressure potential energy into the mechanical energy of the steam turbine. , drives the steam turbine rotor output shaft to do work, and the mechanical energy is transmitted to the generator through the steam turbine shaft, thereby converting the mechanical energy into electrical energy. Therefore, the steam turbine is often called the "source of light" as the source of power. [0003] After the boiler is heated to the design parameters, the steam is led to the steam inlet area of ​​the s...

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Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an axial exhaust steam exhaust cylinder supported by a bearing seat on the ground, which is used to solve the shaft system existing in the cylinder-type axial exhaust steam exhaust cylinder of the prior art. Problems such as unsatisfactory vibration, bearing elevation is easy to change with the change of parameters such as exhaust pressure and temperature, and bearing seat support rigidity is relatively small

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