久久精品免费,亚洲AV网站久久,超碰护士在线,日韩操逼18p

Contact Us

The benefits of the 220 v Cooling Fan

Date: 2015-8-29   Click: 2515 Times

"220V Cooling Fan" operating mode
1, parallel fan: dual fan pressure parallel unchanged, but will increase the amount of wind. Therefore increase the amount of wind to increase the cooling effect, "220V Cooling Fan" in the design of the cooling power is too small if you can consider increasing the fan to resolve.
2, the series fan: Results of the series fan is pressure to increase, but the wind changed. This approach is not to solve the heat problem, generally used in the past when much wind resistance adopted to ensure that the amount of wind. "220V Cooling Fan" The main items,Using the process in order to reduce the low-noise must note the following:System Impedance: Air flow resistance will cause air flow noise generation.Airflow turbulence: due to poor design of the flow channel of air turbulence caused by high-frequency noise will appear, if it does not improve the flow channel is difficult to have a qualitative improvement.Fan speed and size: the cooling fan speed sooner the better, the greater the larger the size of the fan air flow, cooling effect is better. Fans of turn,The higher the speed the greater the noise, the larger the size the larger the noise.Temperature rise: after reducing the temperature difference between the temperature rise, the cooling effect is reduced.

Back to: Industry news

+86-0769-83660708

Home Product News Contact

国产精品免费久久久久| 精品久久成人无码片| 四川一级毛片在线播放| 国产精品黄片观看| 八区精品色欲人妻综合网| 国产一级无码视频在线观看| 亚洲小黄片在线播放| 亚洲有码中文字幕动漫| 在线 中文字幕 无码| 最新地址草草影院| 久久精品国产亚洲AV无码上司| 天堂一区二区av| 人妻久久免费| 无码精品一区二区毛片| 黄色东京热网站是| 日本中文在线播放| 青青草国产| 91精品污| 亚洲阿V天堂在线| 艳妇乳肉豪妇荡乳xxx| 亚洲婷婷一人| 国产免费xxx| 最新亚洲国产AV| 国产AV一二三四五区| 农村老年毛片带视频| 99呦呦| 在线永久免费观看日韩a| 久久国产麻豆伦理| 国产剧情内射抽搐高潮| 欧美A八免费| 欧洲无码在线一区二区| 久久久久成人片免费观看| 荡妇免费在线视频| 四虎影库久免费视频| 亚洲av成人一区二区三区天堂| 日韩精品福利视频| 亚洲无码成人一级| 国产永久免费裸体美女无遮挡网站| 国产111页| 欧美3p在线视频| 久久久久久AV无码免费精品|