公开(公告)号：US4461346A

公开(公告)日：1984-07-24

申请号：US306234

申请日：1981-09-28

申请人： Yoshiyuki Hoshino ,  Shyuichi Imazu ,  Masahiko Miyai ,  Yoshikuni Oshima ,  Masakiyo Izumiya

发明人： Yoshiyuki Hoshino ,  Shyuichi Imazu ,  Masahiko Miyai ,  Yoshikuni Oshima ,  Masakiyo Izumiya

IPC分类号： F22D1/32 ,  F28B9/10 ,  F28D7/06 ,  F28F9/02 ,  F28F9/22

CPC分类号： F28D7/06 ,  F22D1/32 ,  F28B9/10 ,  F28F9/0202 ,  Y10S165/211

摘要： A horizontal feedwater heater for use in heat power stations, of the type having a shell, a plurality of U-bent heat transfer tubes extended in the longitudinal direction of the shell and a vent tube extended in the longitudinal direction of the shell substantially at the center of the latter and adapted for extracting and discharging non-condensed gas. The feedwater heater has a baffle disposed at each side of the vent tube and having a horizontal plate portion extended horizontally from the vent tube and an inclined plate portion inclined downwardly from the end of the horizontal plate portion at an obtuse angle to the latter. The length of projection of the baffle from the vent tube is varied along the length of the shell in accordance with the ratio of amount of heat exchanged between the steam and feedwater in each axial section of the tube nest connected to the water inlet to the amount of heat exchanged between these fluids in the corresponding tube nest section of the feedwater outlet side, thereby to permit an efficient extraction of the non-condensed gas. The structural members connectable with the heating steam is made from a low alloy steel containing more than 1% of Cr to exhibit a high corrosion resistance.

摘要翻译： 一种用于热发电站的水平给水加热器，具有壳体的类型，沿壳体的纵向方向延伸的多个U形弯曲的传热管，以及沿壳体的纵向方向延伸的通风管， 后者的中心，适用于提取和排出非冷凝气体。 给水加热器具有设置在通气管的每一侧的挡板，具有从通气管水平延伸的水平板部分和从水平板部分的端部向下倾斜向下倾斜的倾斜板部分。 挡板从排气管突出的长度随壳体长度而变化，这是根据连接到进水口的管巢的每个轴向部分中的蒸汽和给水之间交换的热量之比， 在给水出口侧的相应管座部分中的这些流体之间换热的热量，从而有效地提取非冷凝气体。 与加热蒸汽连接的结构部件由含有1％以上Cr的低合金钢制成，具有高耐腐蚀性。

公开(公告)号：US4941973A

公开(公告)日：1990-07-17

申请号：US213142

申请日：1988-06-29

申请人： Mamoru Suzuki ,  Katsumi Suzuki ,  Kazutoshi Itoh ,  Akira Minato ,  Tsuyoshi Kambayashi ,  Yoshiyuki Hoshino

发明人： Mamoru Suzuki ,  Katsumi Suzuki ,  Kazutoshi Itoh ,  Akira Minato ,  Tsuyoshi Kambayashi ,  Yoshiyuki Hoshino

IPC分类号： B03C1/28 ,  C02F1/48 ,  F22D11/00

CPC分类号： F22D11/006 ,  B03C1/28 ,  C02F1/488

摘要： Magnetic attracting means, especially a permanent magnet, is disposed in a high pressure feed water heater drain pipe line or air separator water tank of feed water and condensed water systems in a thermoelectric power plant. By adoption of this arrangement, iron oxides contained in water in the feed water and condensed water systems can effectively be attracted and removed by this magnetic attracting means.

摘要翻译： 磁吸引装置，特别是永久磁铁，设置在热电厂的给水和冷凝水系统的高压给水加热器排水管线或空气分离器水箱中。 通过采用这种布置，供给水和冷凝水系统中的水中所含的氧化铁可以通过该磁吸引装置有效吸引和去除。