Stoppage controlling method and device for turbine plant
专利汇可以提供Stoppage controlling method and device for turbine plant专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent temperature-rise in the exhaust port of a high-pressure turbine so as to reduce disturbance in e power transmission system, at the process of stopping a turbine plant, by breaking steam supply to the high- pressure turbine under the particular condition, and exhausting steam in the high-pressure turbine into a condenser.
CONSTITUTION: There is provided a comparison arithmometer 22 which compares the inner pressure 20 in a high-pressure turbine 4 with the reheat steam pressure 21 thereof so as to calculate its deviation. The comparison arithmometer 22 fully closes the governor 3 of the high-pressure turbine when the deviation becomes below the specified value. While the governor 3 of the high-pressure turbine is fully closed, a steam dump valve 17 opens so that steam in the high-pressure turbine 4 is exhausted into a condenser 11. Therefore, it is possible to prevent temperature-rise in the exhaust part of the high-pressure turbine, hence ensuring reduction of disturbance in a power transmission system at the time of turbine trip.
COPYRIGHT: (C)1988,JPO&Japio，下面是Stoppage controlling method and device for turbine plant专利的具体信息内容。
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