安徽快3开奖结果

全国服务热线:18631165157
网站公告:
诚信换来金招牌 服务赢得天下客...
联系我们
18631165157
地址:
安国市南阳工业区
邮箱:
415130881@qq.com
电话:
18631165157
传真:
0312-3427286
手机:
18631165157
安徽快3开奖结果 News
水泵故障分析及排除实例10
添加时间:2019.12.06

河北钢厂使用的炼钢转炉炉口冷却热水循环泵,流量410m3/h,扬程47m,轴功率65. 6kW,配套电机功率75kW, 钢额定电流值为139.7A在设备调试中发现电机电流达到了145A, 超过了电机额定电流。
解决过程:现场观察到电机的电流确为145A,再看泵的进出口压力计算得到泵的扬程仅为38m,分析认为泵的扬程选的太高,泵大流量下经转,造成泵功率增大,此泵的配用电机功率的储备系教又较小,造成了大流量下电机超电流。所以定关小出口门到电流额定值。并建议泵检修时,可将叶轮外经适当切,减少叶轮外经这样更节能。渣浆泵厂家

The hot water circulating pump used in a steelmaking converter in Hebei Province has a flow of 410m3 / h, a lift of 47m, a shaft power of 65.6kw, a matched motor power of 75kW, and a steel rated current of 139.7a. It is found that the motor current has reached 145a, exceeding the rated current of the motor.

Solution process: it is observed that the current of the motor is indeed 145a on site, and the pump head is only 38m according to the calculation of the pump inlet and outlet pressure. The analysis shows that the pump head is too high, the pump rotates under the super flow, resulting in the increase of the pump power, and the motor power reserve system of the pump is small, resulting in the motor super current under the large flow of the pump. Therefore, it is decided to close the outlet valve of the small pump to the current rating. It is suggested that when the pump is overhauled, the outside of the impeller of the pump can be cut properly to reduce the outside of the impeller so as to save energy. Slurry pump manufacturer




爱尚彩票APP下载 湖北快3走势图 湖北快3走势图 博悦彩票平台 湖北快3走势图 湖北快三走势图 湖北快3走势图 湖北快三遗漏 安徽快3开奖结果 大星彩票APP下载