A Noise Reduction Method for Fans of GFD(d) Series Transformers

Abstract

The invention provides a noise reduction method for a GFD (D) series transformer fan, which includes a fan casing, a spring fixedly installed inside the fixed seat, a support plate fixedly connected to the top of the spring, a gravity ball placed on the top of the support plate, and a fixed seat There is a rolling groove corresponding to the gravity ball inside, the bottom of the liquid storage tank is fixedly connected with a nozzle, and the left side of the liquid storage tank is provided with a button corresponding to the nozzle. By setting the spring and the support plate, the gravity ball will shake up and down in the rising groove with the vibration of the fan casing, and the spring will push the gravity ball into the acceleration groove, and then the gravity ball will move along the acceleration groove, the matching groove and the acceleration groove under the action of gravity. The fallback groove rolls, pushes the baffle and falls back to the support plate. When the gravity ball falls in the fallback groove, it will toggle the button to open the nozzle and spray lubricating fluid to the bearing for lubrication, which effectively solves the problem of The poor lubrication of the bearings leads to the problem of increased noise of the fan.

Description

technical field [0001] The invention relates to the technical field of fan noise reduction, in particular to a GFD (D) series transformer fan noise reduction method. Background technique [0002] A transformer is a static electrical appliance made of the principle of electromagnetic induction. It consists of a magnetic core and a coil. The coil includes two or more windings. The coil is divided into a primary coil and a secondary coil, which can transform AC voltage, current and impedance. , The transformer will generate heat during the working process, and fans and other structures need to be used to dissipate heat to ensure the normal operation of the transformer. [0003] The fans commonly used in transformer fans are GFD(D) series cross cold flow cooling fans. The fan is driven by the motor to drive the blades to rotate, and the blades compress and accelerate the air, so that the airflow obtains pressure and is discharged from the exhaust port at high speed. In the proc...

AI Technical Summary

Problems solved by technology

[0003] The fans commonly used in transformer fans are GFD(D) series cross cold flow cooling fans. The fan is driven by the motor to drive the blades to rotate, and the blades compress and accelerate the air, so that the airflow obtains pressure and is discharged from the exhaust port at high speed. In the process of operation, due to the friction and collision between the components and the air, noise will be generated, which will affect the normal operation of the fan. In order to reduce the noise, at present, sound insulation or noise absorption methods are mostly used, and some methods are used to increase bearing lubrication. In order to reduce friction and reduce noise, after working for a long time, the lubricating fluid is gradually exhausted, and the bearing of the fan is poorly lubricated, resulting in increased noise. It is necessary to add lubricating fluid in time, but the existing transformer fan cannot be real-time. The fan needs to be inspected and added lubricating fluid, which needs to be manually inspected regularly, which is inconvenient to use

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