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Fan operational monitoring method based on fan operation current detection

A technology of running current and running monitoring, which is applied in the direction of machine/engine, mechanical equipment, pump control, etc., and can solve problems such as difficulties in automatic monitoring of fans

Inactive Publication Date: 2013-01-09
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fan operation monitoring method based on fan operating current detection, to solve the problem of difficulty in automatic monitoring of fans operating at key parts of weaponry

Method used

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  • Fan operational monitoring method based on fan operation current detection

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Embodiment Construction

[0024] A fan operation monitoring method based on fan operating current detection, the specific steps are:

[0025] The first step is to build a fan operation monitoring device based on fan operating current detection

[0026] The fan operation monitoring device based on fan running current detection includes: fan running current sampling circuit 1 , fan stall detection circuit 2 , fan stall detection circuit 3 , drive circuit 4 and alarm circuit 5 . The output terminal of the fan running current sampling circuit 1 is respectively connected with the input terminal of the fan stall detection circuit 2 and the input terminal of the fan stall detection circuit 3 by printed wires, and the output port of the fan stall detection circuit 2 is connected with the fan stall detection circuit. The output end of 3 is connected with the printed wire of the input end of the drive circuit 4, and the output end of the drive circuit 4 is connected with the printed wire of the input end of the ...

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Abstract

The invention discloses a fan operational monitoring method based on fan operation current detection. The fan operational monitoring method is implemented by building a fan operational monitoring device based on the fan operation current detection. The fan operational monitoring device consists of a fan operational current sampling circuit (1), a fan blocking rotation detection circuit (2), a fan rotation stopping detection circuit (3), a driving circuit (4) and an alarming circuit (5). Running alternating-current current of a fan is detected through the fan operational current sampling circuit (1), the alternating current is converted into setting direct current, the setting direct-current voltage is compared with standard voltage in the fan blocking rotation detection circuit (2) and the fan rotation stopping detection circuit (3), the driving circuit (4) outputs driving signals, and the alarming circuit (5) gives out acousto-optic alarming signals. The fan operational monitoring method is simple in theory, low in cost and reliable to use.

Description

technical field [0001] The invention relates to a method for monitoring the operation of a fan, in particular to a method for monitoring the operation of a fan based on the detection of the running current of the fan. Background technique [0002] The fan is a cooling and exhaust device commonly used in weapons and equipment. If the fan fails during the normal operation of the equipment and is not found in time, the weapon and equipment will malfunction due to poor heat dissipation or poor exhaust. In severe cases, it may cause fire or For other major accidents, the mild ones will cause the shutdown of weapons and equipment, and the serious ones will cause the paralysis of weapons and equipment, making it impossible to complete training or combat tasks. Therefore, the monitoring of the operation status of the fans in the key parts of the weaponry is a means to ensure the normal operation of the weapons and equipment, and it is also a means to prevent other failures of the we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 谢新锋何东高宝龙
Owner BEIJING MECHANICAL EQUIP INST
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