Double-water-internal-cooling steam turbine generator with air gap wind blocking ring and using method thereof

Abstract

The invention discloses a double-water internal-cooling steam turbine generator with an air gap wind blocking ring and a using method thereof. The double-water internal-cooling steam turbine generator comprises a base, a generator shell and an electric brush box, the top of the base is fixedly connected with the generator shell, one end of the generator shell is fixedly connected with the electric brush box, and a sealing cover is installed in the electric brush box in an embedded mode; and a stator iron core is fixedly connected in the generator shell, a rotating shaft is arranged in the generator shell, a rotor is fixedly connected to the outer wall of the rotating shaft, the rotor is located in the stator iron core, and an air gap wind blocking ring is fixed to one end of the stator iron core through a bolt. According to the invention, by rotating the threaded rod, the threaded rod drives the stop block to slide in the movable groove so that the air gap wind blocking ring can be adjusted, and the air gap between the stator iron core and the rotor can be blocked through the air gap wind blocking ring so that cold air can better take away heat in the air gap between the stator iron core and the rotor; and therefore, the cooling effect of the device is improved, and the production efficiency of the device is increased.

Description

technical field [0001] The invention relates to the technical field of cold turbogenerators, in particular to a double-water internally cooled turbogenerator with an air gap windshield ring and a method for using the same. Background technique [0002] The steam turbine generator is a power generation device that uses a steam turbine as a prime mover to drive the rotor to rotate, and converts mechanical energy into electrical energy by using the principle of electromagnetic induction. After a DC current is passed into the rotor winding of the generator, a rotor magnetic field is established. This magnetic field is called the main magnetic field. It rotates with the turbogenerator rotor. Its magnetic flux comes out from one magnetic pole of the rotor, passes through the air gap, stator core, air gap, and then enters another adjacent magnetic pole of the rotor, thus forming the main magnetic flux circuit. Since the generator rotor rotates with the steam turbine, the generator ...

AI Technical Summary

Problems solved by technology

"However, the air gap windshield ring cannot be adjusted, and the air gap windshield ring cannot be adjusted according to the size of the air gap between the stator and the rotor, which is inconvenient to use;

[0005] 2. The comparative document CN110733617A discloses a ventilation structure of a steam turbine generator base, "The steam turbine generator is driven by a steam turbine, and the superheated steam generated by the "boiler" enters the steam turbine and expands to do work, so that the blades rotate to drive the generator to generate electricity. After doing work, the waste steam is sent back to the boiler for recycling through the condenser, circulating water pump, condensed water pump, and feed water heating device. The base of the turbogenerator is usually equipped with a ventilation structure. For air cooling and heat dissipation of turbo generators, most of the ventilation structures of the existing turbo generator bases are relatively simple in structure, only a plurality of ventilation holes are provided for ventilation, and the plurality of ventilation holes cannot be connected in series, so that the cooler cannot simultaneously There are two ventilation holes for ventilation, and the ventilation effect is relatively poor. At the same time, the ventilation structure of the existing turbogenerator base lacks a corresponding heat dissipation structure, so that the ventilation structure has a limited heat dissipation effect and low heat dissipation efficiency. Therefore, the utility model provides a kind of ventilation structure. The ventilation structure of the turbine generator base is used to solve the above problems

"However, the brush device will wear out under long-term use, and this device is not convenient for the staff to disassemble the brush protection box machine, resulting in a large workload for the staff when replacing the brush device, which is not convenient for work Personnel replace the brush device, reducing the work efficiency of the staff

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