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轻烃泵用的机械密封,一是如何保证滑动密封面的润滑,二是如何考虑漏出气化烃的安全系统。滑动密封面润滑轻烃泵一般使用平衡型机械密封,动环用石墨,静环用WC或SiC。但最近轻烃泵液具有轻质、高蒸气压、高吸入压力的强烈倾向,密封腔不可能充分升压,同时密封冲洗液温度不可能冷却的条件增多,所以要求只用单端面密封结构的主密封进行密封。为此,用原来的机械密封就有困难,需采用特殊方法润滑密封面。我们将开发的新型密封称为Crane—Etic Seal,密封面的润滑使用流体动力密封。根据密封尺寸,在动环(石墨)密封面
Light hydrocarbon pump mechanical seal, one is how to ensure the sliding sealing surface lubrication, and second, how to consider the leakage of gasification hydrocarbon safety system. Sliding sealing surface lubrication Light hydrocarbon pump generally use balanced mechanical seal, ring with graphite, static ring with WC or SiC. Recently, however, the light hydrocarbon pump liquid has a strong tendency of light weight, high vapor pressure and high suction pressure, and it is impossible for the sealed chamber to be fully pressurized. Meanwhile, conditions for cooling of the seal liquid temperature can not be increased. Therefore, the single-end-sealing structure The main seal is sealed. To this end, the original mechanical seal there are difficulties, the need to use special methods to lubricate the sealing surface. The new seal we will develop is called the Crane-Etic Seal, and the sealing surfaces are lubricated with hydrodynamic seals. According to seal size, moving ring (graphite) sealing surface