中文字幕人妻偷伦在线视频,桃花免费高清在线观看视频,国产精品永久久久久久久久久,成人区人妻精品一区二区在线av

Welcome [ Wuxi Beirun Blower Manufacturing Co., Ltd. ] official website!

Position:Home > Two leaf Roots blower >

Two leaf Roots blower

The series of products using high precision, high hardness of the synchronous gear, not only the use of fan life is extended to effectively reduce the noise. The series of products using Japan or Germany imported bearings, imported from South Korea or Taiwan, China's rubber belt, so that more reliable product quality. The series of products output air cleaning does not contain any oil and dust, fan seal structure is reasonable, so that oil can not enter the chassis.
Features
1, the impeller with a new curve trajectory, by optimizing the design, the total thermal efficiency and volumetric efficiency to further improve the air volume and pressure particularly good;
2, the box into the exhaust shield shield with helix-type cut into the way, and the top of the rotor to form a triangle into the air outlet, through the rotation of the rotor to open the system to make more balanced operation, so that the fan vibration and noise reduction ;
3, the use of the bearing, gear oil mixed with the internal structure of the box design, so that no cavity in the working chamber, which can get clean gas, do not produce oil smoke caused by air pollution;
4, compact structure, due to the selection of a special bearing and oil seal, improve the service life, and maintenance management is also convenient;
5, impeller and shaft for the split pressure structure, and the impeller between the tiny gap without collision, fan performance lasting, long-term continuous operation.
Working principle
Roots blower for the volumetric fan, the volume of air flow and the number of revolutions, three-leaf impeller once every rotation has two impellers for 3 times suction, exhaust, compared with the two-leaf type, gas pulsation less load changes Small, high mechanical strength, low noise, vibration is also small.
There are two impellers on the two parallel axes. The gap between the impeller and the oval box and the impeller is always kept between the three, and the impeller is surrounded by the rotor and the impeller. And a predetermined amount of gas is conveyed from the sucked side to the excluded side.
The old Roots blower, regardless of the two-leaf type, the three-leaf type, the compression principle is: the rotor tip to the exhaust line to open the moment, the outlet of the high-pressure air flow and compression within the chassis, Compression produces violent pressure changes that make the noise of the fan. The fan studied the spiral shape to eliminate this factor.
久久AV色欲AV久久蜜桃麻豆| 久草视频新免费| 精品无码久久久久国产| 国产又粗又猛又大爽又黄| 中文有无人妻VS无码人妻激烈 | 国产精品99亚发布| 精品久久久久久中文字幕人妻最新| 国语自产偷拍精品视频偷拍图片 | 国产精品日日做人人爱| 国产肥熟女视频一区二区| 日韩人妻无码av一二三区| 亚洲中文字幕在线观看| 一本一道波多野结衣AV一区| 7777色鬼xxxx欧美色妇| 400部精品国偷自产在线| 欧美巨大乳bbwvideos| 给我免费播放片在线| 色狠狠一区二区三区香蕉| 国产激情久久久久久熟女老人| 国产成人精品免高潮在线观看 | 欧美日韩亚洲国内综合网| 亚亚洲精品黑人巨大在线播放| 99久久无码一区人妻| 亚洲人成无码网站在线观看| 久久久精品波多野结衣| 国产AV午夜精品一区二区入口| 国产精品久久久久9999吃药| 无码少妇一区二区三区| 狠狠躁夜夜躁人人爽蜜桃| 无码精品日韩专区第一页| 日本精品无码一区二区三区久久久| 秋霞成人午夜鲁丝一区二区三区| 精品人妻久久久久久888| 国产处破苞无码精品| 国产看黄网站又黄又爽又色 | 免费av视频在线观看| 少妇人妻偷人精品无码AV| 欧美高清VIDEOSSEXO| 日韩精品内射视频免费观看| 国产xxx69麻豆国语对白| 久久久国产精品免费A片分环卫 |