Heat exchanger and combustion device

一种热交换器、燃烧废气的技术，应用在热交换器固定、热交换设备、换热器等方向，能够解决钎焊不良等问题，达到减少钎焊不良的效果

Active Publication Date: 2018-04-24
RINNAI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that poor brazing occurs

Method used

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  • Heat exchanger and combustion device
  • Heat exchanger and combustion device
  • Heat exchanger and combustion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Hereinafter, a heat exchanger according to an embodiment of the present invention and a combustion apparatus including the heat exchanger will be specifically described with reference to the drawings.

[0023] figure 1 It is a schematic perspective view showing an example of the heat exchanger 51 according to the embodiment of the present invention. Between the facing front and rear side walls 501 , 502 of the housing 5 , a plurality of sheet-shaped heat transfer fins 1 for heat absorption are arranged parallel to the side walls 501 , 502 at predetermined intervals. In addition, in this specification, the outer surface of the front side wall 501 corresponds to the front of the heat exchanger 51, and the depth direction when viewing the case body (case body) 5 from the front side corresponds to the front-rear direction, and similarly, the width direction and the height direction They correspond to the left-right direction and the up-down direction, respectively.

[00...

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Abstract

The invention provides a heat exchanger and a combustion device having the heat exchanger. A heat exchanger (51) including a heat transfer fin (1) having a heat-transfer-tube insertion hole (10) through which a heat transfer tube (40) is inserted, and a brazing material holding portion (11) provided above the heat-transfer-tube insertion hole (10) to hold a brazing material (4), wherein when the heat transfer tube (40) is inserted through the heat-transfer-tube insertion hole (10), left and right non-contact portions (15), (16) where a circumferential edge of the heat-transfer-tube insertion hole (10) and an outer circumferential surface of the heat transfer tube (40) are not in contact with each other are separately formed on an upper circumferential edge of the heat-transfer-tube insertion hole (10), and a brazing material guiding portion (100) extending toward the outer circumferential surface of the heat transfer tube (40) is formed between the left and right non-contact portions (15), (16).

Description

technical field [0001] The invention relates to a heat exchanger and a combustion device comprising the heat exchanger. Background technique [0002] Existing heat exchangers incorporated into combustion devices such as water heaters and heat source machines for heating have: a casing with upper and lower openings; a plurality of thin plate-shaped heat transfer fins arranged side by side in the casing through a predetermined gap; A plurality of heat transfer tubes inserted into the tube insertion holes provided on each heat transfer fin in a manner perpendicular to each heat transfer fin (for example, Japanese Patent Laid-Open No. 2011-231993 and Japanese Patent Laid-Open No. 2001 -153468 Bulletin). [0003] In general, heat transfer fins and heat transfer tubes formed of stainless steel with high thermal conductivity are known. These heat transfer fins and heat transfer tubes are joined together by a metal brazing material having a lower melting point than the stainless s...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F24H9/00F28D1/053F28F1/32
CPCF24H9/0005F28D1/053F28F1/32F24H1/24F24H1/40F24H8/00F28D7/1623F28D21/0007F28F1/02Y02B30/00F24H9/02F24H9/06F28F1/325F28F2275/04F24H1/145F28D1/0535F28D1/05358F28F1/12
Inventor西野晃史成瀬英克
OwnerRINNAI CORP