Title:
熱交換器の伝熱管補修方法、ならびに伝熱管補修用の挿入管
Document Type and Number:
Japanese Patent JP6543452
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress or prevent progress of corrosion due to dew condensation of a heat transfer pipe 4, in a method for repairing the heat transfer pipe 4 of a heat exchanger for performing heat exchange between combustion exhaust gas circulating in a passage member 1, and air introduced into the heat transfer pipe 4 attached to the passage member 1 in an attitude of being orthogonal to the circulation direction of the combustion exhaust gas.SOLUTION: An insertion pipe 8 for repair is inserted into a heat transfer pipe 4 so as to make a gap 9 between an inner peripheral surface of the heat transfer pipe 4 and the insertion pipe.SELECTED DRAWING: Figure 3
Inventors:
Kishida Kazuyuki
Application Number:
JP2014209856A
Publication Date:
July 10, 2019
Filing Date:
October 14, 2014
Export Citation:
Assignee:
Plantech Co., Ltd.
Hitachi Zosen Corporation
Hitachi Zosen Corporation
International Classes:
F28F19/00; F23L15/00; F28D7/16; F28F1/00
Domestic Patent References:
| JP7167585A | ||||
| JP59089902A | ||||
| JP7236924A | ||||
| JP2011002159A | ||||
| JP56149596A |
Foreign References:
| US20080268389 | ||||
| US3592261 | ||||
| US2620830 | ||||
| US4941512 |
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office