凝汽器汽侧是在高真空状态下工作,运行条件极其苛刻。铜管与凝汽器管板采用胀接法连接,长时间的运行、腐蚀及热胀冷缩,导致胀接封闭处逐渐松动,形成毛细隙缝,循环水沿隙缝入汽侧,成为锅炉给水中最主要的二次污染源,严重影响了给水质量,加重了 The condenser steam side is working under high vacuum conditions, operating conditions are extremely harsh. Brass and condenser tube plate expansion joint connection, prolonged operation, corrosion and thermal expansion and contraction, resulting in expansion joints gradually loosening, the formation of capillary gap, the circulating water along the gap into the steam side, a boiler feed water The main source of secondary pollution, seriously affected the quality of water supply, increased