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A method for controlling a fan wall and the fan wall

A fan wall and control host technology, applied in the control field, can solve the problems of unstable fan speed, reducing the overall operating efficiency of the fan wall, and different speeds between fans, etc.

Active Publication Date: 2021-04-20
ZHEJIANG MINGZHEN ELECTRIC&ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this control method, the speed of each fan is unstable, and because of the different speeds of the fans, there is interference with each other, which reduces the overall operating efficiency of the fan wall.

Method used

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  • A method for controlling a fan wall and the fan wall
  • A method for controlling a fan wall and the fan wall
  • A method for controlling a fan wall and the fan wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a method for controlling a fan wall, including the following steps:

[0023] During the operation of the fan wall, the control host collects the wind pressure at the outlet of any fan through the wind pressure sensor, and compares it with the atmospheric pressure to obtain the first pressure difference ΔP1=P 风口 -P 大气压 ; At the same time, the control host obtains the second pressure difference ΔP2=(Q / (n×k))^2 through calculation, where Q is

[0024] The set fan air volume, n is the number of fans in the fan wall, and k is the attribute coefficient of the fan itself, which is related to the diameter of the fan rotor. The specific corresponding relationship is as follows:

[0025] Wind wheel diameter 250 280 310 355 400 450 500 560 630 710 800 900 k value 76 77 116 148 188 240 281 348 438 545 695 900

[0026] Furthermore, during the operation of the fan wall, the control host adjusts the P by controlling...

Embodiment 2

[0030] This embodiment provides a fan wall, such as Figure 1-2 As shown, it includes a fan wall frame 3 and several fans 2 installed in the fan wall frame. Wherein, the fan wall frame 3 includes a front wall 30 for installing the fan and a side wall 31 surrounding the front wall 30 to form a semi-closed cavity. The front wall 30 is provided with an opening corresponding to the air inlet of the fan. In order to enhance the reliability of the fan wall as a whole, several reinforcing ribs 32 are arranged at intervals on the side where the fan is installed on the front wall 30 .

[0031] Such as image 3 As shown, the fan is a DC brushless fan, including a coaxially connected wind wheel 20 , a motor 21 , a motor driver 22 , a front panel 23 and fasteners 24 . Wherein, the motor 21 is connected to the wind wheel 20 through the motor flange, the front panel 23 is provided with an air vent 231 extending inward, and the side of the wind wheel 20 away from the motor is provided with...

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Abstract

The invention provides a method for controlling a fan wall, which includes the following steps: S1. The control host collects the wind pressure at the tuyere of any fan through a wind pressure sensor, and compares it with the atmospheric pressure to obtain the first pressure difference ΔP1=P 风口 -P 大气压 ; S2, the control host obtains the second pressure difference ΔP2=(Q / (n×k))^2 through calculation, wherein Q is the air volume of the fan set, n is the number of fans in the fan wall, and k is the attribute coefficient of the fan itself; S3 , The control host adjusts P by controlling the fan speed 风口 , so that all fan speeds are consistent and maintain ΔP1 = ΔP2. The control method of the present invention controls the fan by controlling the torque, so that all the fans can run stably together, and the mutual interference among the fans is reduced.

Description

technical field [0001] The invention relates to the technical field of control, in particular to a method for controlling a fan wall and a fan wall controlled by the method. Background technique [0002] The fan wall is a wall composed of multiple fans, replacing the role of one large fan with multiple small fans to reduce the overall equipment volume. The control mode of the existing fan wall is as follows: multiple fans operate independently, and the speed of each fan is adjusted based on a preset value. With this control method, the speed of each fan is unstable, and the fans interfere with each other because of the different speeds, thereby reducing the overall operating efficiency of the fan wall. Contents of the invention [0003] The purpose of the present invention is to provide a fan wall control method, which controls the fans by controlling the torque, so that all the fans can run stably together and reduce the mutual interference between the fans. [0004] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F04D25/08F04D25/16H02K7/14
CPCF04D25/0606F04D25/08F04D25/166F04D27/004F05D2270/3013F05D2270/3015F05D2270/705H02K7/14
Inventor 陈洪星刘国雷
Owner ZHEJIANG MINGZHEN ELECTRIC&ELECTRONICS CO LTD
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