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    • 3. 发明申请
    • STEAM GENERATOR
    • 蒸汽发生器
    • US20100212605A1
    • 2010-08-26
    • US12666658
    • 2009-02-20
    • Yoshiyuki KondoKoichi TanimotoToshiyuki MizutaniKengo ShimamuraRyoichi Kawakami
    • Yoshiyuki KondoKoichi TanimotoToshiyuki MizutaniKengo ShimamuraRyoichi Kawakami
    • F22B21/04
    • G21D1/02F22B1/162Y02E30/40
    • A steam generator is provided in which the total heat transfer efficiency can be improved by suppressing a reduction in the amount of heat exchange at an inlet side of heat transfer tubes while maintaining the effect of increasing the amount of heat exchange at an outlet side thereof. A steam generator includes a heat transfer tube group formed of a plurality of heat transfer tubes secured to a tube plate; an annular channel that is formed so as to cover the circumference of the heat transfer tube group and that has an opening for communicating with the heat transfer tube group at a lower portion thereof; a water supply box that is disposed at an upper portion of the annular channel and that supplies water to a cold-side portion of the heat transfer tubes; and a steam/water separator that is disposed above the heat transfer tube group and that separates water heated while passing from the annular passage along the circumference of the heat transfer tubes into steam and hot water, in which a porous plate for removing air bubbles is provided at an upper portion of the annular channel in the hot-side portion of the heat transfer tubes.
    • 提供一种蒸汽发生器,其中通过抑制换热管入口侧的热交换量的减少,同时保持增加其出口侧的热交换量的效果,可以提高总传热效率。 蒸汽发生器包括由固定在管板上的多个传热管形成的传热管组; 形成为覆盖传热管组的圆周并且在其下部具有用于与传热管组连通的开口的环形通道; 供水箱,其设置在所述环形通道的上部,并且向所述传热管的冷侧部分供水; 以及蒸汽/水分离器,其设置在传热管组上方,并且将沿着传热管的圆周从环形通道流过的水分离成蒸汽和热水,其中用于除去气泡的多孔板是 设置在传热管的热侧部分中的环形通道的上部。
    • 5. 发明申请
    • STEAM GENERATOR
    • 蒸汽发生器
    • US20120247404A1
    • 2012-10-04
    • US13437446
    • 2012-04-02
    • Ryoichi KawakamiKengo ShimamuraTomoya NakagawaTomoyuki Inoue
    • Ryoichi KawakamiKengo ShimamuraTomoya NakagawaTomoyuki Inoue
    • F22D7/00F22B37/10F22B1/16
    • F22B1/023
    • The steam generator includes: a water supply channel for supplying a secondary coolant to a tube bundle outer casing with the secondary coolant being isolated from the recirculating secondary coolant; a recirculating secondary coolant injection section for injecting the recirculating secondary coolant toward a high temperature-side heat transfer tube bundle; and a supplied secondary coolant injection section for injecting the secondary coolant supplied from the water supply channel toward a low temperature-side heat transfer tube bundle. The recirculating secondary coolant injection section and the supplied secondary coolant injection section being disposed in the tube bundle outer casing on the side toward the tube plate. The recirculating secondary coolant injection section and the supplied secondary coolant injection section are defined such that, of the secondary coolant and the recirculating secondary coolant, the coolant having a higher relative flow rate than the other flows at a lower velocity.
    • 蒸汽发生器包括:用于将二次冷却剂供应到管束外壳的供水通道,其中二次冷却剂与循环二次冷却剂隔离; 再循环二次冷却剂喷射部,其将再循环二次冷却剂向高温侧传热管束喷射; 以及供给的二次冷却剂喷射部,其将从供水通道供给的二次冷却剂朝向低温侧传热管束喷射。 再循环二次冷却剂喷射部和供给的二次冷却剂喷射部在管板外壳的朝向管板的一侧配置。 限定二次冷却剂循环循环部分和供给的二次冷却剂喷射部分,使得在二次冷却剂和再循环二次冷却剂中,具有比另一冷却剂更高的相对流速的冷却剂以较低的速度流动。
    • 6. 发明授权
    • Steam generator
    • 蒸汽发生器
    • US09182113B2
    • 2015-11-10
    • US13437446
    • 2012-04-02
    • Ryoichi KawakamiKengo ShimamuraTomoya NakagawaTomoyuki Inoue
    • Ryoichi KawakamiKengo ShimamuraTomoya NakagawaTomoyuki Inoue
    • F22D7/00F22B37/10F22B1/16F22B1/02
    • F22B1/023
    • The steam generator includes: a water supply channel for supplying a secondary coolant to a tube bundle outer casing with the secondary coolant being isolated from the recirculating secondary coolant; a recirculating secondary coolant injection section for injecting the recirculating secondary coolant toward a high temperature-side heat transfer tube bundle; and a supplied secondary coolant injection section for injecting the secondary coolant supplied from the water supply channel toward a low temperature-side heat transfer tube bundle. The recirculating secondary coolant injection section and the supplied secondary coolant injection section being disposed in the tube bundle outer casing on the side toward the tube plate. The recirculating secondary coolant injection section and the supplied secondary coolant injection section are defined such that, of the secondary coolant and the recirculating secondary coolant, the coolant having a higher relative flow rate than the other flows at a lower velocity.
    • 蒸汽发生器包括:用于将二次冷却剂供应到管束外壳的供水通道,其中二次冷却剂与循环二次冷却剂隔离; 再循环二次冷却剂喷射部,其将再循环二次冷却剂向高温侧传热管束喷射; 以及供给的二次冷却剂喷射部,其将从供水通道供给的二次冷却剂朝向低温侧传热管束喷射。 再循环二次冷却剂喷射部和供给的二次冷却剂喷射部在管板外壳的朝向管板的一侧配置。 限定二次冷却剂循环循环部分和供给的二次冷却剂喷射部分,使得在二次冷却剂和再循环二次冷却剂中,具有比另一冷却剂更高的相对流速的冷却剂以较低的速度流动。