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Constant-temperature frequency conversion speed regulator for mine cooling fan

A cooling fan, frequency conversion speed regulation technology, applied in the direction of mechanical equipment, non-variable pumps, machines/engines, etc., can solve the problems of reduced contactor and motor life, fan bearings, fan blade air duct damage, loud noise, etc. , to achieve the effects of reducing energy consumption, ensuring timeliness and accuracy, and strong anti-interference ability

Inactive Publication Date: 2017-02-01
HUAIBEI MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under such a large current impact, the life of the contactor and the motor is greatly reduced, and the mechanical impact during startup is easy to cause damage to the fan bearings, fan blades, air ducts, etc.
There are also disadvantages such as high noise and high energy consumption

Method used

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  • Constant-temperature frequency conversion speed regulator for mine cooling fan
  • Constant-temperature frequency conversion speed regulator for mine cooling fan

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Embodiment Construction

[0009] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0010] Figure 1-2 Show the specific embodiment of the present invention: as Figure 1-2 The shown is a mine cooling fan constant temperature variable frequency speed regulating device, including a cooling fan, the cooling fan is provided with a temperature sensor; the temperature sensor is connected to a PID controller, and the output end of the PID controller is connected to a frequency converter.

[0011] The device ensures the timeliness and accuracy of fan speed adjustment through the system, thereby reducing energy consumption. In addition, the device is controlled according to the information of sensor output changes, that is, by comparing the deviation between the system behavior and the expected behavior, and eliminating the deviation to obtain the expected system performance, the anti-interference ability is strong.

[0012] The a...

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PUM

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Abstract

The invention discloses a constant-temperature frequency conversion speed regulator for a mine cooling fan and relates to the technical field of mining equipment. The constant-temperature frequency conversion speed regulator for the mine cooling fan comprises a cooling fan, wherein a temperature sensor is arranged on the cooling fan; the temperature sensor is connected with a PID (proportion-integration-differentiation) controller, and an output end of the PID controller is connected with a frequency converter. The provided constant-temperature frequency conversion speed regulator for the mine cooling fan is energy-saving and consumption-reducing.

Description

technical field [0001] The invention relates to the technical field of mining equipment, in particular to a constant temperature variable frequency speed regulating device for a mine cooling fan. Background technique [0002] The mine hoist motor can be a large DC motor of 1800KW-2300KW. The motor is cooled by an axial flow fan, and the power of the fan motor is 75KW. In order to ensure the cooling effect of the main motor, the cooling fan adopts a constant speed direct start method to supply air to the main motor during system design. In the later routine maintenance process, it was found that when the equipment is running in winter, the temperature is low, and the temperature of the main motor is guaranteed to be within the normal range. The required air supply volume is low, and because the cooling fan operates at a constant speed, the air supply volume is maintained at the highest level all year round. The utilization efficiency of equipment is greatly reduced, and th...

Claims

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Application Information

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IPC IPC(8): F04D27/00
CPCF04D27/004
Inventor 刘光辉王建文李停停朱霆
Owner HUAIBEI MINING IND