초록 ▼

In a once-through steam generator, a separating bottle (25) is inserted between the evaporator (22) and the superheater (23). To purify the water/steam circuit, a greater quantity of water than is necessary is conveyed through the evaporator (22) via a feed pump (20). The water quantity is measured

In a once-through steam generator, a separating bottle (25) is inserted between the evaporator (22) and the superheater (23). To purify the water/steam circuit, a greater quantity of water than is necessary is conveyed through the evaporator (22) via a feed pump (20). The water quantity is measured in such a way that wet steam enters the separating bottle (25). This water fraction, together with all the impurities contained therein, is separated in said bottle and is drawn off via a blowdown line (29). On the occasion of overfeeding, a conditioning agent is metered to the water, in order to reduce the volatility of the substances to be separated.

대표청구항 ▼

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] A method for purifying the water/steam circuit in a once-through steam generator which consists essentially of an economizer (21), an evaporator (22) and a superheater (23), a separating bottle (25) b

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] A method for purifying the water/steam circuit in a once-through steam generator which consists essentially of an economizer (21), an evaporator (22) and a superheater (23), a separating bottle (25) being inserted between the evaporator (22) and the superheater (23), wherein, in the full load mode of the plant, a greater quantity of water than is necessary is conveyed through the economizer (21) and the evaporator (22) via a feed pump (20), said water quantity being measured in such a way that wet steam enters the separating bottle (25), wherein the water fraction of the steam, together with all the impurities contained therein, is separated in the separating bottle and is drawn off via a blowdown line (29), and wherein, on the occasion of overfeeding, a conditioning agent is metered to the water, said agent reducing the volatility of the impurities to be removed.