Steam and power dual-power-drive fan structure

Abstract

The invention discloses a steam and power dual-power-drive fan structure. The problems that a fan drive structure is complex, single gas source drive or motor drive is adopted, at most of time, normalrunning needs cannot be met, and normal production is affected are solved. Two permanent magnet couplings are selected according to the actual industry and mining, when the permanent magnet couplingswork, a rotating gear drives a pushing disc to rotate, a pushing convex strip slides over a convex block from thin to thick, a sliding sleeve and a shaft sleeve are pushed to move in the direction away from the pushing disc, a permanent magnet disc gets close to a conductor disc, the air gap between the conductor disc and the permanent magnet disc is reduced, a steam turbine output shaft or electric motor output shaft can drive a fan rotating shaft to rotate, and an air outlet of the fan begins to output air. Through control over the gear turning angle, the air gap is controlled, engaging anddisengaging of the permanent magnet couplings and magnitude adjusting of output torque can be achieved, and due to a ratchet wheel, ratchets and a pawl, gear self locking is achieved.

Description

technical field [0001] The invention relates to a fan, more specifically, it relates to a structure of a fan driven by steam and electricity. Background technique [0002] my country's thermal power generation accounts for 70% of the country's power generation, and industrial furnaces are also widely used in various industries such as glass, metal, and building materials. Fans are used as auxiliary machines for ventilation and drafting of boilers, industrial kilns, and drying furnaces. Generally, the fans and induced draft fans of large-scale power plant boilers and industrial kilns are usually driven by electricity, and fans become auxiliary machines that consume a large amount of power. In order to reduce power consumption, under the condition of rich steam, it is driven by steam turbine, which will greatly reduce the power consumption rate. The steam-driven fan has good economic benefits in practical application and can bring advantages to the enterprise, but there are s...

AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the problem that the drive structure of the blower is complex, and the use of a single air source drive or motor drive can not meet the normal operation requirements and affect normal production in many cases, and provides a steam-electric dual-power drive blower structure with a simple blower drive structure , the power to drive the fan can be switched between the steam turbine and the motor, which can meet the normal operation requirements of the fan under different conditions and avoid the impact of the fan on the production system due to power problems

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