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    • 7. 发明授权
    • Once through sliding pressure steam generator
    • 一次通过滑动压力蒸汽发生器
    • US4290389A
    • 1981-09-22
    • US77819
    • 1979-09-21
    • David Palchik
    • David Palchik
    • F01K7/32F22B29/10F22B35/12F22D7/00
    • F22B35/125F22B29/10
    • A once through steam generator (10) for sliding pressure operation from supercritical pressure at high loads into the subcritical range at low loads, having vertical tubes (14) lining the furnace (12) walls and passing their entire length without a mixing header. The furnace tubes are internally rifled and have orifices (47) associated with them to proportion the flow at full load. A steam separator (26) receiving effluent from the tubes sends steam to the superheater (70) and at low ratings returns water (32,40) to the tubes for recirculation therethrough. The tubes (14) are sized in accordance with a specified criteria based on the mass flow rate at full load, or on the ratio of friction drop to static head.
    • 一种一次通过的蒸汽发生器(10),用于在低负载下从超临界压力下进行压力操作,在低负载下进入亚临界范围,具有衬在炉子(12)壁上的垂直管(14)并且没有混合头部通过其整个长度。 炉管在内部被膛并且具有与它们相关联的孔口(47)以在满负荷时使流量成比例。 接收来自管道的流出物的蒸汽分离器(26)将蒸汽传递到过热器(70),并且在低额定值下将水(32,40)返回到管中用于再循环通过。 根据满载下的质量流量或摩擦滴与静态头的比例,管(14)的尺寸根据规定的标准来定尺寸。