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US4068475A Flow control for once-through boiler having integral separators 失效
一体式分离器直流锅炉的流量控制

Flow control for once-through boiler having integral separators
摘要:
A once-through boiler is provided with integral separators with which drain valves are associated. Boiler inlet and outlet flows are balanced throughout startup first by drain valve control in response to separator level and then by drain valve control in response to throttle pressure.
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