机封泄露导致输送重油出口流量低案例分析
Case analysis of low outlet flow of heavy oil pipeline pump related to seal failure
服务背景Service background：
客户反映泵流量不足问题，需要派人到现场维修
The customer reported the problem of insufficient pump flow, and someone needs to be sent to the site for repair
地点 Location：
浙江湖州某特材厂
Zhejiang Huzhou some special material factory
现场检查内容如下：
The on-site inspection contents are as follows：
管道泵输送很粘稠带颗粒污油
Pipeline pump transport very viscous belt particle dirty oil
处有少许不明显的泄露Slight leakage from the mechanical seal
KSB管道泵Etaline适用于这种复杂工况KSB pipeline pump Etaline is suitable for such complex working conditions
1，在现场，检查了泵系统，做了一些必要常规检查。发现油污很粘稠，觉得泵管路堵住的可能性大，但是从出口堵头打开，油有慢慢的出来，并不存在堵住的情况。
On site, the pump system was inspected and some necessary routine checks were made. It was found that the oil was very sticky, and the possibility of blockage of the pump pipe was large. But the oil came out slowly from the outlet plug, and there was no blockage.
2，检查了泵转向，转向也正确，与泵转向标识一致。
Check the pump rotation, rotation is also correct, consistent with the pump rotation logo.
3，最后检查发现3台泵的机械密封泄露问题，这种泄露不同于正常打水的泵，水往外漏，因为是粘度很高的油，泵在运行或停止时时看不到大的泄露，但是一丢丢小的泄露，都会导致当泵运转时，空气有可能会进入到泵里，导致泵出现流量 和压力低的情况。
Final inspection found 3 pump mechanical seal leakage problem of the leak is different from the normal water pump, water leakage, because it is high viscosity oil, pump in running or stopping all the time can't see the big leaks, but a small leak diu diu, will cause when the pump is running, the air could be entering into the pump, to pump flow and low pressure.