基本信息:
- 专利标题： PERMANENT MAGNET DIRECT-DRIVE SLURRY PUMP BASED ON GAS FILM DRAG REDUCTION
- 申请号：US17425334 申请日：2020-07-02
- 公开(公告)号：US20220154733A1 公开(公告)日：2022-05-19
- 发明人： Fangwei XIE , Shupeng FANG , Zuzhi TIAN , Gang SHEN , Zhencai ZHU , Haifang ZHANG , Honglei LI , Chunjie XU , Wancai ZHOU
- 申请人： China University of Mining and Technology , SHANDONG ZHANGQIU BLOWER CO., LTD.
- 申请人地址： CN Jiangsu; CN Shandong
- 专利权人： China University of Mining and Technology,SHANDONG ZHANGQIU BLOWER CO., LTD.
- 当前专利权人： China University of Mining and Technology,SHANDONG ZHANGQIU BLOWER CO., LTD.
- 当前专利权人地址： CN Jiangsu; CN Shandong
- 优先权： CN202010202205.3 20200320
- 国际申请： PCT/CN2020/099861 WO 20200702
- 主分类号： F04D29/68
- IPC分类号： F04D29/68 ; F04D7/04 ; F04D13/06 ; F04D29/043 ; F04D29/20 ; F04D29/22 ; F04D29/62
摘要：
Disclosed is a permanent magnet direct-drive slurry pump based on gas film drag reduction, which includes a permanent magnet motor, a main shaft, an impeller, and a valve block. The permanent magnet motor includes a housing, a stator core, stator windings, a rotor core, and a permanent magnet. The rotor core and the impeller share the main shaft, and an airflow channel is provided inside the main shaft. The impeller includes a front cover plate, a back cover plate, and blades. The blades are modularly manufactured, and blade gas jet holes and hemispherical pits are provided on the pressure surface. The airflow channel in the main shaft is communicated with the blade gas-jet holes. The valve block is disposed at the tail end of the main shaft so as to control gas exhaust and prevent liquid from entering the shaft. The present invention has such advantages as a small size, high efficiency, and strong wear resistance.
公开/授权文献:
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F04 | 液体变容式机械；液体泵或弹性流体泵 |
| ----F04D | 非变容式泵 |
| ------F04D27/00 | 泵、泵送装置或系统的控制，例如调节 |
| --------F04D29/60 | .安装；装配；拆卸 |
| ----------F04D29/68 | ..通过影响边界层 |