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我厂DA220-71离心压缩机是沈阳鼓风机厂的产品,用于催化裂化装置。设计进口压力为0.15公斤/厘米~2,出口压力为9.5公斤/厘米~2,转速8500转/分。压缩机采用双气封抽气器密封结构。操作时,抽气器使密封腔中产生负压,将机内通过气封泄漏的瓦斯从抽气室抽走,防止瓦斯外漏。由于实际的进口压力为0.2～0.45公斤/厘米~2,因而原设计的密封(迷宫密封)漏气比较严重。加上瓦斯中含有焦粉及催化剂粉末,经常堵塞抽气通道,使泄漏更加严重。特别是开工后期,气封被腐蚀和抽气通道堵塞,泄漏量达每小时60公斤,影响安全和污染环境。而且焦粉和催
Our factory DA220-71 centrifugal compressor is a product of Shenyang Blower Factory for catalytic cracking unit. Designed to import pressure of 0.15 kg / cm ~ 2, the outlet pressure of 9.5 kg / cm ~ 2, speed of 8500 rev / min. Compressor with dual gas seal suction seal structure. Operation, the suction device to produce a negative pressure in the sealed chamber, the machine through the gas seal leak gas pumping from the pumping chamber, to prevent gas leakage. As the actual inlet pressure of 0.2 ~ 0.45 kg / cm ~ 2, so the original design of the seal (labyrinth seal) leakage is more serious. Gas with coke powder and catalyst powder, often blocking the exhaust channel, so that leakage is more serious. Especially after the commencement of construction, the gas seal is corroded and blocked by the exhaust passage, and the leakage amount reaches 60 kg per hour, affecting safety and environment pollution. And coke powder and reminders