Title:
熱交換器及びボイラ
Document Type and Number:
Japanese Patent JP7215928
Kind Code:
B2
Abstract:
To suppress increase of wear of a heat transfer tube disposed at a downstream side of a heat transfer tube including a protector for preventing wear, and increase of wear due to generation of draft.SOLUTION: A heat exchanger includes a plurality of heat transfer tubed disposed in a space in which a combustion gas flows and in which a heated fluid flows, and a circular arc-shaped protector disposed on an outer peripheral face of at least one heat transfer tube of the plurality of heat transfer tubes and opposed to a flowing direction of the combustion gas, and following formulas (1) and (b) are satisfied when a radius of the heat transfer tube is R, a thickness of the circular arc-shaped protector is h, and an angle occupied by the circular arc-shaped protector in a circumferential direction of the heat transfer tube is θ. θ<180° ... (a), (R+h)sin(θ/2)≤1.15R ... (b)SELECTED DRAWING: Figure 1
Inventors:
戸▲高▼ 心平
Kazuo Tashiro
宮▲崎▼ 翼
Michio Chikakawa
Junichi Okubo
Takuo Yamada
Kazuo Tashiro
宮▲崎▼ 翼
Michio Chikakawa
Junichi Okubo
Takuo Yamada
Application Number:
JP2019031935A
Publication Date:
January 31, 2023
Filing Date:
February 25, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F22B37/10; F22B37/40
Domestic Patent References:
| JP11118101A | ||||
| JP5215302A | ||||
| JP2017150786A |
Attorney, Agent or Firm:
SSIP Patent Attorney Corporation
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