摘要
为研究某供热机组改造后回热系统设备运行的可行性,对设备进行适应性校核,选取高压加热器、低压加热器、凝汽器和除氧器进行性能核算。结果表明:高压加热器壳侧强度校核满足改造参数的要求,但是由于壳侧设计压力的提高,需要重新对壳侧进行水压试验;低压加热器的热力校核与壳侧强度校核满足改造参数要求,但是低压加热器蒸汽流速增加,可能出现管束振动风险;凝汽器热力校核与强度校核结果均为安全;改造后除氧器基本满足参数要求,但是存在一定的振动风险。
To research the operation feasibility of the equipment in the heat recovery system in a heating unit after retrofitting,the adaptability of the equipment was checked,while the performance check was conducted on the high-pressure heater,the low-pressure heater,the condenser and the deaerator.Results show that,the shell-side strength check of the high-pressure heater can meet the parameter requirements after retrofitting,but the shell-side hydraulic pressure of the equipment should be retested,which is caused by the increase of the shell-side design pressure.The thermal performance check and the shell-side strength check of the low-pressure heater can meet the parameter requirements after retrofitting,but the retrofit may lead to the risk of the tube bundle vibration,which is caused by the increase of the steam velocity of the low-pressure heater.The operation of the condenser is safety with the thermal performance check and the shell-side strength check.The deaerator can basically meet the parameter requirements after retrofitting,while there would be a certain risk of vibration.
作者
李志炜
邹晓昕
林宝森
陈小琛
翟黎明
余建中
公宇桐
陈德露
Li Zhiwei;Zou Xiaoxin;Lin Baosen;Chen Xiaochen;Zhai Liming;Yu Jianzhong;Gong Yutong;Chen Delu(Guoneng(Quanzhou)Thermal Power Co.,Ltd.,Quanzhou 362000,Fujian Province,China;Power China Fujian Electric Power Engineering Co.,Ltd.,Fuzhou 350003,China;Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,Southeast University,Nanjing 210096,China)
出处
《发电设备》
2023年第2期126-130,共5页
Power Equipment
关键词
供热机组
回热系统
设备
适应性校核
heating unit
heat recovery system
equipment
adaptability check
