浙江电力
浙江電力
절강전력
Zhejiang Electric Power
2015年
11期
74-78
,共5页
鲍听%李复明%李文华%柳秀实
鮑聽%李複明%李文華%柳秀實
포은%리복명%리문화%류수실
氟塑料%超低排放%水媒管式烟气换热器
氟塑料%超低排放%水媒管式煙氣換熱器
불소료%초저배방%수매관식연기환열기
fluoroplastic%ultra-low emission%water medium heat pipe gas-gas heater
超低排放机组的水媒管式烟气换热器长期在酸露点温度以下服役,面临冷凝酸液腐蚀、积垢等问题,选择合适的材料才能保证设备的安全稳定运行。相比于传统的金属材料,聚四氟乙烯、可熔性聚四氟乙烯以及氟化乙烯丙烯共聚物等氟塑料在耐腐蚀、抗积灰方面具有显著的优势。从材料特性、换热器设计、经济性等方面,对氟塑料换热器在超低排放燃煤机组中的应用可行性进行了研究。
超低排放機組的水媒管式煙氣換熱器長期在痠露點溫度以下服役,麵臨冷凝痠液腐蝕、積垢等問題,選擇閤適的材料纔能保證設備的安全穩定運行。相比于傳統的金屬材料,聚四氟乙烯、可鎔性聚四氟乙烯以及氟化乙烯丙烯共聚物等氟塑料在耐腐蝕、抗積灰方麵具有顯著的優勢。從材料特性、換熱器設計、經濟性等方麵,對氟塑料換熱器在超低排放燃煤機組中的應用可行性進行瞭研究。
초저배방궤조적수매관식연기환열기장기재산로점온도이하복역,면림냉응산액부식、적구등문제,선택합괄적재료재능보증설비적안전은정운행。상비우전통적금속재료,취사불을희、가용성취사불을희이급불화을희병희공취물등불소료재내부식、항적회방면구유현저적우세。종재료특성、환열기설계、경제성등방면,대불소료환열기재초저배방연매궤조중적응용가행성진행료연구。
Water medium heat pipe gas-gas heater (WGGH) of coal-fired power generating units with ultra-low emission is long in service under acid dew point temperature and faces condensed acid liquor corrosion, scal-ing, etc. To ensure operation safety and stability of generating units, proper materials must be chosen. Com-pared with traditional metallic materials, fluoroplastics such as PTFE, PFA and FEP are advantageous in cor-rosion resistance and dust mitigation. Application feasibility of fluoroplastic heat exchanger in coal-fired power generating units with ultra-low emission in terms of material property, heat exchanger design, economical effi-ciency, etc.