1) overhead heat exchanger
顶循换热器
1.
The overhead heat exchangers (E1205A~D) of the No.
洛阳石化总厂二套催化裂化装置分馏塔顶循换热器 (E12 0 5A～D)因腐蚀多次发生泄漏 ,分析表明 :H2 S -HCl-H2 O酸性环境对换热器的腐蚀 ,是造成频繁泄露的主要原因。
2) overhead recycle oil heat exchanger
顶循环油换热器
1.
The detailed analysis of contusion failure of FCC main fractionator overhead recycle oil heat exchanger tubes,concludes that the corrosion of external wall of heat exchanger is mainly the comprehensive corrosion of H_2S-HCl-NH_3-H_2O while the internal corrosion is main- ly the pit corrosion by chlorine ion and oxygen depolarization.
文章对催化裂化装置分馏塔顶循环油换热器管束腐蚀穿孔原因进行了详细分析,指出换热器管外壁的腐蚀主要是H_2S-HCl-NH-3-H_2O型的全面腐蚀,管内壁主要是氯离子及氧的去极化引起的点蚀。
4) compulsory cyclic heat exchanger
强制循环换热器
5) recirculation heat exchange
再循环热交换器
6) tip heat transfer
顶部换热
补充资料：持循
1.犹遵循。
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