据统计,热油泵机械密封磨损的失效居各种油泵的首位,主要失效现象是摩擦付磨损。通过对摩擦付的温度、材料、比压、变形以及冲洗、端盖急冷水和泵的运转状况等因素对密封面磨损的影响分析,发现密封面的热变形是主要原因。文中并提出了改进措施。 According to statistics, the failure of hot oil pump mechanical seal wear ranks first in all kinds of oil pumps, the main failure phenomenon is friction to pay wear. By analyzing the effect of friction on temperature, material, specific pressure, deformation and rinsing, cold water on the end cover and pump operating conditions on the wear of the sealing surface, it is found that the thermal deformation of the sealing surface is the main reason. In the article and put forward the improvement measure.