Method for de-icing device for separating air by cryogenic distillation and device adapted to be de-iced using the method

The invention relates to a method for de-icing a device for separating air by cryogenic distillation and a device adapted to be de-iced using the method. The method for separating air by cryogenic distillation in an air separation device comprising a system of columns (K1, K2), a first turbine (T1) and a second turbine (T2), wherein, in de-icing operation, a common duct (13) bringing air from thetwo turbines to a column is closed by means of an isolation valve (V11), a purge gas is sent to the turbines at a temperature above 0 degrees centigrade in order to de-ice them, but purge gas is not sent to the system of columns. 本发明涉及用于为通过低温蒸馏来分离空气的装置除冰的方法和适合使用该方法除冰的装置。种用于在空气分离装置中通过低温蒸馏来分离空气的方法，所述空气分离装置包括塔系统(K1，K2)、第涡轮机(T1)和第二涡轮机(T2)，其中，在除冰操作中，借助于隔离阀(V11)来关闭将来自两个涡轮机的空气带至塔的公共管道(13)，在高于0℃的温度下将吹扫气体送至涡轮机以便将它们除冰，但不将吹扫气体送至塔系统。