Cooling fan speed adjusting device of diesel generating set

Abstract

The invention discloses a cooling fan speed adjusting device of a diesel generating set and belongs to the field of diesel generators. The cooling fan speed adjusting device of the diesel generating set comprises a signal collector, a single chip microcomputer with a pulse-width modulation (PWM) signal driver and a silicone oil fan clutch, a cooling fan is fixed on the silicone oil fan clutch, an oil outlet hole in the silicone oil fan clutch between an oil storing cavity and a working cavity can be controlled to be opened and closed through the single chip microcomputer with the PWM signal driver and an electromagnetic coil, the amount of silicone oil that enters the working cavity from the oil storing cavity can be controlled, the relative rotating speed between a driving disc and a silicone oil fan clutch cooling water tank end driven body and diesel engine end driven body can be controlled, and therefore, stepless regulation of rotating speed of the cooling fan can be achieved. The cooling fan speed adjusting device of the diesel generating set has the advantages that under the condition that stepless regulation of rotating speed of the cooling fan can be achieved and a cooling water tank can be cooled, oil consumption of the diesel generating set can be reduced, emission of the diesel generating set can be lowered, and the service life of the diesel generating set can be prolonged.

Description

technical field [0001] The invention relates to a speed regulating device for a cooling fan of a diesel generator set in the field of diesel generators. Background technique [0002] Normal ventilation and cooling of the diesel generator set is a necessary condition to ensure the rated output power of the diesel generator set. The cooling of the conventional oil generating set mainly relies on the cooling fan at the front end of the oil recovery unit to cool the cooling water tank. The cooling fan speed remains unchanged. The ventilation volume of the cooling fan is designed according to the maximum heat dissipation of the diesel engine, and its power consumption accounts for about 10% of the output power of the diesel engine. 5% or so. In the cold winter in the north, the temperature reaches minus 35°C. When the diesel generator set is started, the cooling fan sucks a large amount of cold air from outside the machine room, which is not conducive to the heat preservation of...

AI Technical Summary

Problems solved by technology

The hydraulic coupler is a controlled speed control device that consumes power. The power loss during operation will turn into heat, so it is not energy-saving.

Moreover, its structural volume is relatively large, and the structure of the unit is greatly changed when it is arranged, and the configuration cost is also large.

According to the national policy of energy saving and emission reduction, the hydraulic coupling is no longer suitable for the current market

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