欧美熟妇dodk巨大,国产乱人伦偷精品视频a人人澡,6080YYY午夜理论片中无码,国产亚洲精品久久久久久久软件

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

Roots blower (Meltblown cloth fan)

Product description
Roots blower is a volumetric fan, impeller end, fan front and rear cover. Principle is the use of two leaf-shaped rotor in the cylinder for relative movement to compress and transport the gas rotary compressor. This blower is simple in structure, easy to manufacture, widely used in aquaculture aerobics, sewage treatment aeration, cement transport, more suitable for low pressure occasions, gas transmission and pressurization system can also be used as a vacuum pump.
working principle
Roots blower is a kind of volumetric fan, there are two three-leaf impeller in the chassis and wall board by the relative rotation of the space, because each impeller is used involute, or the outer cycloid Line, the three leaves of each impeller is exactly the same, while the two impellers are exactly the same, thus greatly reducing the difficulty of processing. Impeller in the processing of the use of CNC equipment to ensure that the two impellers in the center from the same circumstances, regardless of the two impellers rotate to what position, can maintain a certain minimum gap, so as to ensure that the gas leakage within the allowable range.
The impeller and the impeller, the impeller and the chassis, the gap between the impeller and the wall is very small, so that the air inlet to form a vacuum state, the air under the action of atmospheric pressure into the intake chamber, and then, Each of the two blades of the impeller and the wallboard, the cabinet constitutes a sealed chamber, the air into the air chamber during the rotation of the impeller, the two leaves formed by the sealed cavity continuously into the exhaust chamber, The impeller in the air chamber is intermeshing, so that the air between the two leaves squeezed out, so continuous non-stop operation, the air is continuously from the air inlet to the outlet, which is the Roots blower The whole process of work.
久久久久久久精品国产亚洲| 亚洲美女高潮久久久久| 无码人妻精品一区二区蜜桃网站| 农民人伦一区二区三区| 色欲TV国产亚洲AV麻豆| 国产色无码专区在线观看| 精品国产精品国产偷麻豆| 免费视频国产在线观看| 亚洲av永久无码精品天堂d2| 日本熟妇人妻中出| 亚洲av无码一区东京热久久| 97精品超碰一区二区三区| 100国产精品人妻无码| 无码人妻精品一区二区三区9厂| 国产熟女乱子视频正在播放| 亚洲精品午夜国产va久久成人| 亚洲色无码a片一区二区麻豆| 无码一区二区三区av免费蜜桃视| 天堂无码人妻精品一区二区三区| 欧美最猛性XXXXX69交| 丰满少妇被猛男猛烈进入久久| 日韩人妻精品无码一区二区三区| 精品国精品国产自在久国产不卡| 国产精品天干天干综合网| 色综合久久无码五十路人妻| 精品国产av无码一区二区三区| 精品女同一区二区三区免费站| 亚洲国产精品久久久久秋霞小| 国产激情久久久久影院老熟女| 国产精品一区二区av麻豆| 国产av一区二区三区最新精品| 人妻巨大乳挤奶水HD免费看| 亚洲精品无码一区二区卧室| 99精品人妻少妇一区二区| 少妇无码久久一区二区三区| 国产精品av在线| 性欧美残忍折磨猛交无码视频| 人妻熟人中文字幕一区二区| 中文字幕无码精品亚洲资源网久久| 久久午夜夜伦鲁鲁片无码免费| 成人欧美一区二区三区在线视频|