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原油加热炉经过一个阶段的运行后,对流炉管表面积灰严重,分析了积灰的成分、成因及其对炉管的腐蚀情况,提出了高压蒸汽清灰技术用于加热炉清灰的技术要求,研制了高压蒸汽清灰系统。基于加热炉对流室的结构,选择高温水蒸汽的压力为0.7 MPa,温度为150℃;根据高温蒸汽的力学性能、制造工艺和相关计算结果,确定了喷枪的喷头结构;根据对流室的宽度,选择了喷枪杆的长度。工业应用实践表明:加热炉经该系统清灰后,烟囱的排烟温度平均降低75～100℃,炉效提高5%以上,减少了炉管腐蚀,节约了燃料。
Crude oil heating furnace after a period of operation, the convection tube surface ash serious, analysis of the composition of fouling, causes and their corrosion on the furnace tube, proposed high-pressure steam cleaning technology for heating furnace cleaning requirements , Developed a high-pressure steam cleaning system. Based on the structure of the convection chamber in the heating furnace, the pressure of the high-temperature steam is selected to be 0.7 MPa and the temperature is 150 ° C. According to the mechanical properties of high-temperature steam, the manufacturing process and the related calculation results, the structure of the spray nozzle is determined; The length of the gun is selected. Industrial practice shows that: After the heating furnace is cleaned by the system, the chimney exhaust temperature is reduced by 75 ~ 100 ℃ on average, and the furnace efficiency is increased by 5%, which reduces the corrosion of the furnace tube and saves the fuel.