久久精品国产热_中文字幕日韩精品亚洲七区_色综合天天干_啊灬啊灬啊灬快灬深一区2区,成人国产在线视频,欧美高清一区二区,欧美日韩亚洲第一区

Contact Us

Mechanism stall 220V Cooling Fan

Date: 2015-2-6   Click: 1348 Times

If the angle of attack "220V Cooling Fan" at the entrance of a blade reaches a critical value, the first place on the blade stall, but not all of the blades simultaneously stall occurs, this phenomenon be continued, so that caused the stall clogged area along with the impeller rotating in the opposite direction to promote, which produce the so-called "rotating stall" phenomenon. Fan into unstable conditions district run, will produce a number of rotating stall area to the impeller. "220V Cooling Fan" blade after each time zone would be the role of a stall exciting force, thereby allowing the blade to resonate. In this case, the dynamic stress increases blade may cause blade breakage, so from the absolute reference frame outside the impeller, the stall area or rotated in the direction of rotation of the impeller, causing the mechanism of rotating stall "220V Cooling Fan", rotating stall pressure fluctuations generated by the impeller rotor excitation occurs is abnormal vibration excitation force, the excitation force size and the size of the gas molecular weight, they are proportional to the relationship, the greater the molecular weight, the greater the incentive force.

Back to: Industry news

+86-0769-83660708

Home Product News Contact

主站蜘蛛池模板: 大方县| 鄂托克旗| 苗栗县| 榕江县| 册亨县| 通渭县| 泗阳县| 游戏| 铅山县| 莱州市| 天门市| 隆安县| 当雄县| 洛南县| 马关县| 南木林县| 鹤庆县| 濮阳市| 肇州县| 阜平县| 甘德县| 三原县| 日照市| 图们市| 阿拉善盟| 高清| 射洪县| 郧西县| 三河市| 儋州市| 富裕县| 阿坝县| 安溪县| 定西市| 团风县| 天柱县| 大连市| 沙坪坝区| 谢通门县| 东乌珠穆沁旗| 万源市|