A high-power pump/fan drive coupling device for a turbo-generator set

Abstract

The invention provides a high-power water pump / fan drive coupling device of a steam turbine generator set, which relates to the technical field of drive coupling, and includes an input shaft, an output shaft, a meshing gear, a speed regulating device and a gear assembly; the speed regulating device includes a driving shaft and a driven shaft, the driven shaft is nested on the outside of the driving shaft, a driving disk and a passive disk are respectively sleeved on the driving shaft and the driven shaft, and the driving disk is located on the periphery of the passive disk; The inner side of a plurality of the satellite gears is engaged with the central gear, and the outer side of a plurality of the satellite gears is engaged with the gear ring; the driving shaft is directly coaxially connected with the gear ring; the driven shaft passes through The meshing gear meshes with the satellite gear carrier; the input shaft is connected with the driving shaft through a clutch, and the central gear is sleeved on the output shaft. Due to the use of the nested design of the main and driven shafts, two pairs of transmission gears are omitted, which improves the power transmission efficiency of the device.

Description

technical field [0001] The invention belongs to the technical field of power drive, and particularly relates to a drive device for a water pump and a fan of a large-capacity steam turbine generator set. Background technique [0002] The water pump and fan in the steam turbine generator set are its important auxiliary equipment, which are related to whether the boosting of the main feed water, the main condensate water, the boiler flue gas and the conveying process can be completed with high efficiency, low consumption, safety and reliability. With the development of turbo-generator units towards high parameters and large capacity, the power of auxiliary machines such as water pumps and fans is also increasing. Therefore, not only high-power driving power equipment is required, but also the driving coupling between the two is required. The requirements for installations are also getting higher and higher. It is hoped that this device should be safe, reliable, low-consumption...

AI Technical Summary

Problems solved by technology

However, if the permanent magnet governor adopts air cooling, its power range is only limited within 1000kW, and even if it adopts water cooling, its power range can only be within 4000kW, so it is difficult to adapt to higher power occasions

[0006] In short, for high-power water pumps, fans and other working equipment, although permanent magnet governors and hydraulic couplers are routinely used at present, the transmission power and speed regulation range of permanent magnet governors are greatly restricted by using permanent magnet governors alone. However, the use of hydraulic coupling requires a large and complex working oil and lubricating oil system, which makes the entire drive coupling device expensive and requires a large amount of operation and maintenance.

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