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    • 1. 发明授权
    • Vapor-condensing, heat-transfer wall
    • 蒸汽冷凝,传热墙
    • US4166498A
    • 1979-09-04
    • US815028
    • 1977-07-12
    • Kunio FujieWataru NakayamaTakahiro DaikokuShigeki HirasawaKimio Kakizaki
    • Kunio FujieWataru NakayamaTakahiro DaikokuShigeki HirasawaKimio Kakizaki
    • F25B39/04F28F13/02F28F13/04F28B9/08F28F3/04F28F13/18
    • F28F13/04
    • A condensing, a heat-transfer wall for liquefying vapor having a temperature higher than the wall by bringing the vapor in contact therewith. There are provided many parallel grooves in the basic surface of the heat-transfer wall, thereby defining ridge portions or build-up portions thereamong. These ridge portions have their tip portions tapered at sharp acute angle. Recessed or concave portions are provided in the tip portions of these ridge portions, and these recessed portions have their surfaces inclined to the basic surface of the heat-transfer wall. The width of the respective grooves ranges from 0.05 to 2.5 mm, and the depth thereof is not more than 10 mm. The thickness of the respective ridge portions ranges from 0.01 to 2.5 mm, and the height there of is not more than 10 mm. The depth of the recessed portions ranges from 0.02 to 0.8 times the depth of the grooves, and the pitch of recessed portion is not more than 2.0 mm. The width of the tip portions of the portions is 0.01 to 1.0 times the pitch of the recessed portions.
    • 冷凝物,通过使蒸气与其接触而液化具有高于壁温度的蒸气的传热壁。 在传热壁的基面上设有许多平行的凹槽,从而在其之间形成脊部或组合部分。 这些脊部的尖端部分以锐角锐化。 在这些脊部的前端设置有凹部或凹部,这些凹部的表面倾斜于传热壁的基面。 各槽的宽度为0.05〜2.5mm,其深度为10mm以下。 各脊部的厚度为0.01〜2.5mm,高度为10mm以下。 凹部的深度为凹槽深度的0.02〜0.8倍,凹部的间距为2.0mm以下。 这些部分的前端部的宽度为凹部的间距的0.01〜1.0倍。