FINNED TUBE HEAT EXCHANGER
    9.
    发明公开
    FINNED TUBE HEAT EXCHANGER 审中-公开
    带肋管的热交换器

    公开(公告)号:EP2767791A4

    公开(公告)日:2014-10-01

    申请号:EP12840153

    申请日:2012-10-10

    Applicant: PANASONIC CORP

    CPC classification number: F28D1/0477 F28F1/32 F28F1/325

    Abstract: A fin tube heat exchanger (100) includes fins (31) and heat transfer tubes (21). Each of the fins (31) has a flat portion (35), a first inclined portion (36), and a second inclined portion (38). A length of the fin (31) in a gas flow direction is defined as S1, a center-to-center distance between the heat transfer tubes in a row direction is defined as S2, a diameter of the flat portion (35) is defined as D1, a flat plane passing through an upstream end and a downstream end of the fin (31) in the gas flow direction is defined as a reference plane H1, an angle between the reference plane H1 and the first inclined portion (36) is defined as ¸1, an angle between the reference plane H1 and the second inclined portion (38) is defined as ¸2, and a distance from the reference plane H1 to the flat portion (35) is defined as ±. The fin tube heat exchanger (100) satisfies a relationship: tan -1 {(S1 €¢ tan¸1 ± 2±)/(S2 - D1)} ‰¤ ¸2

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