The recuperatortube of ammonia condenser on a factory was made of 316l stainless steel and pitted after used for only one year.
某公司的立式氨冷凝器波纹换热管采用316 L不锈钢制造，使用1年后陆续发生腐蚀穿孔现象。
2
Working principle, construction and control of the burner with integrated recuperator (BICR) provided with radiant tube and developed by Kromschroeder Co. of Germany were described.