Title:
SPIRAL HEAT EXCHANGER MANUFACTURING METHOD, SPIRAL HEAT EXCHANGER, AND DIRECT FIRE TYPE HEAT EXCHANGER-INTEGRATED BURNER
Document Type and Number:
Japanese Patent JP2019020028
Kind Code:
A
Abstract:
To provide a manufacturing method of silicon carbide-based spiral heat exchanger, capable of thinning a ventilation chamber side wall at high strength, a spiral heat exchanger, and a direct fire type heat exchanger-integrated burner.SOLUTION: A plurality of portion molded bodies 2A-2F constituting a heat exchanger 2 is three-dimensionally molded from silicon carbide powder by a laser sintering method, wherein the portion molded bodies are formed by dividing the heat exchanger 2 on a split surface containing at least a first-directional surface X1 along a spiral central shaft C1; silicon carbide powder in a ventilation chamber in the respective portion molded bodies 2A-2F is removed from the split surface side; and the split surfaces of the portion molded bodies 2A-2F are bonded with inorganic adhesive.SELECTED DRAWING: Figure 9
Inventors:
HAMAGUCHI SHUTA
Application Number:
JP2017138067A
Publication Date:
February 07, 2019
Filing Date:
July 14, 2017
Export Citation:
Assignee:
NETSUSAN HEAT KK
International Classes:
F28D7/02; B28B1/30; F23D14/66; F23L15/00; F28F21/02
Domestic Patent References:
| JP2014163581A | 2014-09-08 | |||
| JP2004027329A | 2004-01-29 |
Foreign References:
| WO2016049419A1 | 2016-03-31 | |||
| US20050014102A1 | 2005-01-20 | |||
| US20170146267A1 | 2017-05-25 |
Other References:
SPIN-WORKS INTERNATIONAL CORPORATION, HEATCOR, JPN6019020104, 2015, ISSN: 0004045621
Attorney, Agent or Firm:
Hisashi Kato
Keita Tohsaka
Toru Minase
Keita Tohsaka
Toru Minase