公开(公告)号：US20050167089A1

公开(公告)日：2005-08-04

申请号：US11048896

申请日：2005-02-03

Applicant: Yoshihisa Ozeki ,  Atsushi Narita ,  Hidekazu Isogai ,  Ichiro Kunai ,  Rinzo Kayano ,  Sakio Inoue

Inventor： Yoshihisa Ozeki ,  Atsushi Narita ,  Hidekazu Isogai ,  Ichiro Kunai ,  Rinzo Kayano ,  Sakio Inoue

IPC: F28F9/02 ,  F28D7/16 ,  F28F9/013 ,  F28F9/22 ,  F28F9/24 ,  F28F9/00

CPC classification number: F28D7/16 ,  F28F9/22

Abstract: The multi-tube heat exchanger includes a bundle of tubes which form fluid passages of first heat exchanging fluid, an outer shell which covers the bundle of tubes and form a fluid passage of second heat exchanging fluid, and a baffle plate which is arranged inside the outer shell in a direction intersecting an axial direction of the bundle of tubes and provided with a plurality of through holes through which respective tubes of the bundle are passed. Each of the through holes has such a shape that a portion of an outer peripheral face of the tube comes into contact with a portion of an inner peripheral face of the through hole, and a gap for passing the second heat exchanging fluid is formed between the other portion of the inner peripheral face and the outer peripheral face of the tube. It is possible to support the tubes with high dimensional accuracy, and to enhance heat exchanging efficiency by decreasing fluid resistance. It is also possible to make pitch of the through holes smaller and to make the heat exchanger compact.

Abstract translation: 多管式热交换器包括形成第一热交换流体的流体通道的管束，覆盖管束并形成第二热交换流体的流体通道的外壳，以及布置在内部的挡板 外壳沿与所述管束的轴向相交的方向设置有多个通孔，所述束的各个管通过所述通孔。 每个通孔具有这样的形状：管的外周面的一部分与通孔的内周面的一部分接触，并且在第二热交换流体之间形成用于使第二热交换流体通过的间隙 内周面的另一部分和管的外周面。 可以以高尺寸精度支撑管，并通过降低流体阻力来提高热交换效率。 也可以使贯通孔的间距变小，使热交换器紧凑化。