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    • 5. 发明专利
    • Scraper-type heat exchanger
    • SCRAPER型热交换器
    • JP2014112009A
    • 2014-06-19
    • JP2012266215
    • 2012-12-05
    • Kobayashi Kogyo Kk小林工業株式会社
    • KAMINO HARUO
    • F28G5/00F28D1/06F28F1/40F28F9/22
    • F28F19/008F28D7/106F28F1/08F28G1/08
    • PROBLEM TO BE SOLVED: To provide a scraper-type heat exchanger which is simply structured and low priced by eliminating the need of a pump for pumping a process fluid.SOLUTION: When a suction feeding body 30 which is rotated while reciprocating in tight contact with an inner wall 200 of a heat transfer pipe 20 moves from the side of a process fluid inlet part 21 to a process fluid outlet part 22, in a scraper-type heat exchanger 1, a process fluid is sucked from the process fluid inlet part 21 into the heat transfer pipe 20 and simultaneously, a process fluid which is already sucked, passes the suction feeding body 30 via check valves 310, 320 and is discharged to the side of the process fluid outlet part 22 is extruded to the process fluid outlet part 22. Within the heat transfer pipe 20, the process fluid is heat-exchanged with a warm refrigerant which flows between a jacket pipe 10 and the heat transfer pipe 20. A scraper section 33 scrapes the process fluid deposited on the inner wall 200 of the heat transfer pipe 20, while rotating.
    • 要解决的问题:提供一种刮板式热交换器,其结构简单,价格低廉,因为不需要用于泵送过程流体的泵。解决方案:当吸入进给体30在与 在刮板式热交换器1中,传热管20的内壁200从工艺流体入口部分21的侧面移动到工艺流体出口部分22,从工艺流体入口部分21吸入工艺流体 进入传热管20,并且同时已经吸入的工艺流体,经由止回阀310,320将吸入供给体30排出并被排出到过程流体出口部分22侧被挤压到工艺流体出口部分 在传热管20内,处理流体与在夹套管10和传热管20之间流动的温热制冷剂进行热交换。刮板部分33刮除沉积在内部管W上的工艺流体 所有200个传热管20,同时旋转。
    • 8. 发明专利
    • METHOD OF CLEANING OUTER SURFACE OF HEAT TRANSFER TUBE
    • JPS60240998A
    • 1985-11-29
    • JP9726184
    • 1984-05-14
    • KUBOTA LTD
    • TAKEMOTO YOUSUKEKATSUKI TERUMI
    • F28G13/00F28G5/00
    • PURPOSE:To heat a heat transfer tube and scales thereby to crack and exfoliate scales out of the outer surface of the title heat transfer tube based on a difference in thermal expansion coefficient between both the heat transfer tube and scales by stopping the feed of cold water to the outside of the heat transfer tube and flowing a fluid heated within the tube. CONSTITUTION:With respect to a heat transfer tube 1 to which scales 3 are attached a fluid (c) heated to a temperature of 45 deg.C or more is caused to flow or stay within the heat transfer tube 1 in a state wherein cold water (b) is not caused to flow outside the tube 1 to heat the same tube 1 itself. When the heat transfer tube 1 is heated from its inner part without cooling the outside thereof, the scales 3 attached to the outer surface 2 are gradually dried, and cracks are produced in the dried scales 3 themselves depending on the difference in the thermal expansion coefficients, and at least almost all scales 3 are naturally exfolidated depending on the physical properties and environmental condition and the like of a material constituting respective parts.