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.
国产最好的高清播放机| 亚洲色丰满少妇高潮18p| 无码人妻精品一区二区三区66| 野花视频在线观看免费| 十七岁在线观看免费高清完整版| 午夜精品一区二区三区在线观看| 免费真人视频网站直播下载| 久久伊99综合婷婷久久伊| 99久久久国产精品免费调教| 人妻熟妇乱又伦精品视频| 欧美熟妇XXXXX欧美老妇不卡| 精品久久久久中文字幕| 欧美多毛肥胖老妇做爰| 熟妇人妻一区二区三区四区| 欧美性猛交XXXX| 欧美激情一区二区三区| 亚洲午夜久久久久妓女影院| CAOPORN国产精品免费视频| 99久久久无码国产精品| 国产精品久久国产精品99| 最新精品国偷自产在线69| 99在线精品免费视频九九视| 欧美国产成人精品二区芒果视频| 国产成人aaaaa级毛片| 亚洲日韩乱码人人爽人人澡人 | 久久久久久精品免费看a片| A级毛片高清免费视频在线播放| 蜜臀久久精品久久久久酒店| 欧美人与物VIDEOS另类| 一区二国产好的精华| 日韩内射美女人妻一区二区三区| 亚洲av无码专区首页| 三人性FREE欧美| 久久婷婷五月综合色精品 | 午夜时刻免费入口| 亚洲 欧美 国产 日韩 字幕| 韩国精品无码一区二区三区| 日韩精品无码熟人妻视频| 国产在线观看无遮挡无码AⅤ多人| 妻子3免费完整版hd| 亚洲码欧美码一区二区三区|