Fire tube heater
    2.
    发明授权
    Fire tube heater 有权
    消防管加热器

    公开(公告)号:US08844472B2

    公开(公告)日:2014-09-30

    申请号:US12644164

    申请日:2009-12-22

    IPC分类号: F24H1/20

    摘要: A fire tube heater apparatus includes a shell, with a tube bundle received in the shell and a burner section communicated with the tube bundle. The tubes in the tube bundle have circular inlet and outlet end portions with a flattened, serpentine intermediate portion. The intermediate portion has a width greater than the inlet outside diameter and a tube thickness transverse to the width less than the inlet outside diameter.

    摘要翻译: 火管加热器装置包括壳体,容纳在壳体中的管束和与管束连通的燃烧器部分。 管束中的管具有圆形的入口和出口端部,其具有扁平的蛇形中间部分。 中间部分具有大于入口外径的宽度和横向于小于入口外径的宽度的管厚度。