Title:
蒸発器用伝熱管、これを備えた蒸発器、及びこれを備えたターボ冷凍機、並びに蒸発器用伝熱管の設計方法及び蒸発器の設計方法
Document Type and Number:
Japanese Patent JP7254589
Kind Code:
B2
Abstract:
Provided is a heat-transfer tube for evaporators that is capable of improving heat transmission performance in a tube outer surface. A heat-transfer tube (9a) for cold water is provided with: a body tube part (9b) in which cold water is circulated; and a plurality of fins (9c) that are provided adjacent to one another over the entirety of the body tube part (9b), that protrude outward from the body tube part (9b), and that each include a tip end part (9c1) bent so as to form a space (S) thereinside. When the body tube part (9b) is viewed from outside, and when a representative diameter corresponding to the area of a gap (BL) between adjacent fins (9c) is denoted as L and the width between roots of the adjacent fins (9c) is denoted as a tunnel width Bt, L/Bt is 0.15-0.5.
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Inventors:
Naoya Miyoshi
Kenji Ueda
Yoshie Kashino
Yuki Shimizu
Daichi Yoshii
Kenji Ueda
Yoshie Kashino
Yuki Shimizu
Daichi Yoshii
Application Number:
JP2019066608A
Publication Date:
April 10, 2023
Filing Date:
March 29, 2019
Export Citation:
Assignee:
Mitsubishi Heavy Industries Thermal Systems Co., Ltd.
International Classes:
F25B39/02; F25B1/053; F28F1/32
Domestic Patent References:
| JP2006234290A | ||||
| JP52009160A | ||||
| JP2013004562A | ||||
| JP59084095A |
Attorney, Agent or Firm:
Fujiharu
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata