乙烯装置电加热器预防性维护

Precaution of Electrical Heater for Ethylene Equipment

干气提浓乙烯装置脱氧系统、脱砷系统共有四台加热器:E-402(600kW)、E-404(560kW)、E-406(500kW)、 E-407(200kW)。该电加热器自投用以求运行平均每5分钟就会出现一次内部超温报警,电加热器自保停机,每次停机后需要人工现场复位,等待内部温度降到设定温度后才能重新本文从介绍电加热器的工作原理入手,分析其在工艺中加热方式,找出影响加热器不能稳定工作的原因。

Dry gas concentration equipment for ethylene and dearsenication system include four electrical heater： E-402（600kW）, E- 404（560kW）, E-406（500kW）, E-407（200kW）, So far as the electrical heater has been in use, the inside overheating alarms every five minutes and the heater was halt for self-protection, It restart when the inside temperature reduced to the set value and the reset are carried out on spot manually, This article starts from introduction of the operating principles of the electric heater and analyzes its heating mode to find out the reasons of heater＇s instability.