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    • 3. 发明专利
    • Joint structure and method for double pipe
    • 双管接头结构与方法
    • JP2014161907A
    • 2014-09-08
    • JP2013038190
    • 2013-02-28
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • OGUMO SHINYAUSUI YUKINORIKAMO KAZUHIKO
    • B23K26/21F16L13/02
    • PROBLEM TO BE SOLVED: To provide a joint structure and method for a double pipe, which is enabled to reduce the production cost for the double pipe by performing a welding work quickly while ensuring a double boundary even in a small-diameter heat transfer pipe.SOLUTION: In a joint structure for a double pipe 10, a plurality of double pipe constituting members 10a and 10b having an inner pipe 11 and an outer pipe 12 are connected by welding the members with a weld portion W of axial end portions. The inner pipe 11 and the outer pipe 12 are simultaneously laser-welded by a laser welding apparatus 14 from the outside of the outer pipe 12, while they are held at the identical welding height and a cavity C is retained between the inner pipe 11 and the outer pipe 12 in the weld portion W.
    • 要解决的问题:提供一种用于双管的接头结构和方法,其能够通过在确保双边界的同时在小直径传热管中快速进行焊接作业来降低双管的生产成本。 解决方案:在双管10的接头结构中,通过用轴向端部的焊接部分W焊接这些部件来连接具有内管11和外管12的多个双管构成件10a和10b。 内管11和外管12由外管12的外侧由激光焊接装置14同时被激光焊接,同时保持在相同的焊接高度,空腔C保持在内管11和 焊接部W内的外管12。
    • 5. 发明专利
    • Heat exchanger, and method of manufacture heat exchanger
    • 热交换器和制热换热器的方法
    • JP2014163655A
    • 2014-09-08
    • JP2013038189
    • 2013-02-28
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • OGUMO SHINYAUSUI YUKINORIHIRAYAMA TOMOYUKIKAMO KAZUHIKO
    • F28F9/18F28D7/16
    • F28F1/12B23K9/0288B23K20/12B23K26/28B23K26/32B23K31/02B23K2201/14B23K2203/04B23K2203/50B23P15/26F28D7/16F28F9/182F28F9/185F28F2275/067Y10T29/49352
    • PROBLEM TO BE SOLVED: To provide a heat exchanger and a method of manufacturing the heat exchanger, in which a concentration of stress at a welded part can be effectively reduced under an operation of equipment while keeping an easiness in manufacturing and easiness in inspection and a reliability in operation can be enhanced.SOLUTION: A clearance C is formed between: an inner peripheral surface of a cylindrical stub 22 protruded toward water chambers 14, 15 at the outlet side and the inlet side of an outlet side pipe plate 11a and an inlet side plate 11b; and an outer peripheral surface of an end part of a heat transfer pipe 12 inserted into the stub 22. End surfaces of an inner cylinder part 24a and an outer cylinder part 24b of a grooved end piece 24 are abutted and welded against the end surfaces of a heat transfer pipe 12 and the stub 22, and the end surface of the outer cylinder 24a is abutted and welded against the end surface of the heat transfer pipe 12 in correspondence with the same height of a welded part in one pass by a laser welding from the inner surface side of the heat transfer pipe 12.
    • 要解决的问题:提供一种热交换器和制造热交换器的方法,其中在设备的操作下可以有效地降低焊接部位的应力集中,同时保持制造的容易性和检查的容易性,以及 可以提高操作的可靠性。解决方案:在出口侧的水室14,15和出口侧管板11a的入口侧突出的圆筒形短截线22的内周面和出口侧管板11a的入口侧之间形成有间隙C 侧板11b; 以及插入到短截线22中的传热管12的端部的外周面。开槽端片24的内筒部24a和外筒部24b的端面抵接并焊接在 传热管12和短截线22,并且外筒24a的端面与激光焊接一次通过的焊接部件的高度相对应地抵接并焊接在传热管12的端面上 从传热管12的内表面侧。
    • 8. 发明专利
    • Heat exchanger
    • 热交换器
    • JP2014169840A
    • 2014-09-18
    • JP2013042971
    • 2013-03-05
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MORITA HIDEYUKIKONDO YOSHIYUKIOGUMO SHINYA
    • F28F9/013F22B37/10
    • PROBLEM TO BE SOLVED: To suppress the damage of a heat transfer pipe while properly suppressing the vibration of the heat transfer pipe, in a heat exchanger.SOLUTION: There are provided: pipe plates 12, 14 which are fixed in a trunk 11, and in which a plurality of attachment holes 21, 22 are formed; a first pipe support plate 16 in which a plurality of first support holes 23 are formed at prescribed intervals, and which is arranged in the trunk 11 at a prescribed interval from the pipe plates 12, 14; second pipe support plates 17, 18 in which a plurality of second support holes 24, 25 are formed at prescribed intervals, and which are arranged in the trunk 11 at prescribed intervals from the pipe plates 12, 14 and the first pipe support plate 16, and made of a material having a thermal expansion coefficient higher than that of the first pipe support plate 16; and a plurality of heat transfer pipes 31 which are supported by being fixed to the attachment holes 21, 22 at their ends, and penetrating the first support holes 23 and the second support holes 24, 25 at their middle parts.
    • 要解决的问题:在热交换器中同时适当地抑制传热管的振动的同时抑制传热管的损坏。解决方案:设置有固定在主干11中的管板12,14,以及 其中形成有多个安装孔21,22; 第一管支撑板16,其中多个第一支撑孔23以规定的间隔形成,并且从管板12,14以规定的间隔布置在主干11中; 第二管支撑板17,18,其中以规定的间隔形成有多个第二支撑孔24,25,并且以规定的间隔从管板12,14和第一管支撑板16布置在躯干11中, 并且由具有比第一管支撑板16的热膨胀系数高的热膨胀系数的材料制成; 以及多个传热管31,其在其端部固定在安装孔21,22上,并且在其中间部分处穿过第一支撑孔23和第二支撑孔24,25。