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  • 大型工业风扇降温的原理
  • 本站编辑:杭州雅田机电有限公司发布日期:2019-06-02 16:59 浏览次数:

DAXINGGONGYEDIAOSHANYUNXINGZAILIXIANGDEQINGKUANGXIA,NINKEYIBACHAODAXINGGONGYEFENGSHANCHUICHUDEFENGXIANGXIANGCHENGZHUZHUANGDEQILIU,ZHUZHUANGQILIUDEWAIBIAOMIANJIUHUIYUKONGQICHANSHENGMOCA,NEI ZULI=K1(ZULICHANGSHU)*ZHOUZHANG TONGFENGLIANG =k2(SUDUCHANGSHU)*JIEMIANJI。NAYIGEZHIJING WEI 730mmDEFENGSHANHEZHIJINGWEI 7300mm DECHAOZUOBIJIAO:  

游戏赚钱网1、ZHIJING 730mm DEFENGSHAN:ZHOUZHANG=0.73 × 3.14=2 .29m JIEMIANJI=0.36 × 0.36 × 3.14=0.407 PINGFANGMI

 2、ZHIJING 7200mm DEFENGSHAN :ZHOUZHANG=7.2 × 3.14=22.9m JIEMIANJI=3.6 × 3.6 × 3.14=40.7 PINGFANGMI 

游戏赚钱网YOUCIKEJIAN,TONGGUOTONGYANGMIANJIDEQILIUDEZULISHIXIAOFENGSHANDE 0.1 BEI  

游戏赚钱网YUANLI:DADEQILIULIUTIYUNDONGSUOSHOUDEMOCALIXIANGDUIXIAO,CONGERSHIDAFENGSHANNENGGOUQUDONGDALIANGDEKONGQIQUEBIXIAOFENGSHANSUOXUDENENGLIANGXIANGDUIYAOSHAO! YIDANKONGQIDEGUANXINGDEDAOKEFU,DALIANGDEKONGQILIUDONGDEZISHENDONGNENGSHIZHIZHIXUHENXIAODEHOUXUDONGLIJIKEWEICHIKONGQIDECHIXULIUDONG。ERXIAOXINGDEFENGSHANDEQILIUMOCABIJIAODA,NENGLIANGDABUFENDOUSUNHAOZAIMOCAGUOCHENGZHONG。

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The large industrial ceiling fan is ideally operated, and you can imagine the wind blown out by the Super large industrial fan as a columnar air flow, and the outer surface of the columnar air flow will rub against the air. That resistance = K1(resistance constant) * perimeter ventilation = K2(velocity constant) * cross-sectional area. Take a 730mm diameter fan and a 7300mm diameter super large industrial fan for comparison:
1, 730mm diameter fan: perimeter = 0.73 × 3.14 = 2. 29M cross-sectional area = 0.36 × 0.36 × 3.14 = 0.407 square meters
2, 7200mm diameter fan: perimeter = 7.2 × 3.14 = 22.9 M cross-sectional area = 3.6 × 3.6 × 3.14 = 40.7 square meters
It can be seen that the resistance of large fans passing through the same area of air flow is 0.1 times that of small fans.
Principle: The friction force of the large airflow fluid movement is relatively small, so that the large fan can drive a large amount of air but the energy required by the small fan is relatively less! Once the inertia of the air is overcome, the self-movement of a large amount of air flow can enable it to maintain the continuous flow of air with only a small amount of subsequent power. The friction of the small fan is relatively large, and most of the energy is lost during the friction process.

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