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充水湿式潜水电泵,使用前电机内必须加满干净的冷水(冷开水最好),缺水的情况下电泵严禁投入运行。但这种泵的加水孔一般都很小,特别是石家庄产的8NQ潜水泵只有加水孔,没有排气孔。1982年我县用的这种潜水电泵,因加水不足而烧坏的电机达80台之多,每台修好需250元,误了农时,浪费了资金,损失很大。电机内加水不足,绕组的上端就会暴露在空气中,电泵运转时绕组露出的部分就会局部冷却不良,使导线外的聚乙烯绝缘尼龙护套熔化,绝缘遭到破坏,电机烧毀。因此,使用前一定要加满水,加水时要边加边晃,使电机中的空气全部排出来,真正加满水后再拧紧水堵。没有排气孔的电泵,应加设排气孔,以防出现加满水的假象。每使用半年左右应检
Water-filled wet submersible pump, the motor must be filled with clean cold water (cold water is best) before use, the pump is not allowed to put into operation in the case of water shortage. However, this pump is generally very small hole water, in particular, produced only 8NQ Shijiazhuang submersible pump water hole, there is no vent. In 1982, our county used this submersible pump, which burned up to 80 motorcycles because of insufficient water supply. Each unit costs 250 yuan. When it was mistaken for agriculture, it wasted money and lost a lot of money. Insufficient water in the motor, the upper end of the winding will be exposed to the air, the exposed part of the winding during the operation of the electric pump will be partially cooled poorly so that the polyethylene insulated nylon sheath outside the lead melts, the insulation is damaged, and the motor burns out. Therefore, be sure to fill the water before use, add water to add side Akira, so that all the electrical discharge of the air, the real full of water and then tighten the water plug. Pump without vent, vent should be added to prevent the illusion of filling the water. Every half year or so should be seized