CN107966045A - Fin tube type heat exchanger and the burner for possessing the heat exchanger - Google Patents
Fin tube type heat exchanger and the burner for possessing the heat exchanger Download PDFInfo
- Publication number
- CN107966045A CN107966045A CN201710831326.2A CN201710831326A CN107966045A CN 107966045 A CN107966045 A CN 107966045A CN 201710831326 A CN201710831326 A CN 201710831326A CN 107966045 A CN107966045 A CN 107966045A
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- CN
- China
- Prior art keywords
- hole portion
- fin
- hole
- heat exchanger
- burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Details Of Fluid Heaters (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of fin tube type heat exchanger, it possesses:The multiple fins (2) being arranged side by side in thickness of slab direction and the heat conducting pipe through these fins;Fin formed with:For for perforative 1st hole portion (23) of heat conducting pipe and and 2nd hole portion (24) for for solder intert adjacent with the 1st hole portion, 1st hole portion is made of the hole flanging processing hole with hole flanging portion (23a), wherein, which protrudes tubular to the side on the thickness of slab direction of fin.In fin, in a manner of surrounding the 1st hole portion formed with:Towards the direction concave cricoid concave part (25) identical with the projected direction in hole flanging portion.Moreover, by the 2nd hole portion close to the part of the 1st hole portion can into concave part in a manner of form the 2nd hole portion.So as to suppress to produce:The so-called solder that the deformation of the part of fin formed with the 2nd hole portion and solder flow to the part of the fin left from the 1st hole portion drips the problem of bad.
Description
Technical field
The present invention is to be related to a kind of to possess the multiple fins being arranged side by side in thickness of slab direction and the heat conduction through these fins
The fin tube type heat exchanger of pipe and the burner for possessing the heat exchanger.
Background technology
It is well known that in the past, as the fin tube type heat exchanger being arranged in the burner of hot water supply apparatus etc.,
Each fin formed with:For what is interted for perforative 1st hole portion of heat conducting pipe and with the adjoining of the 1st hole portion and for supplying solder
2nd hole portion (for example, referring to patent document 1).In this heat exchanger, the 1st hole portion is processed by the hole flanging with hole flanging portion
Hole is come what is formed, and wherein the hole flanging portion protrudes tubular towards the side on the thickness of slab direction of fin.Moreover, make to be interspersed in the 2nd
The solder of hole portion dissolves, and is allowed to flow to the 1st hole portion, thus, at hole flanging portion, heat conducting pipe is brazed in fin.
However, in above-mentioned this heat exchanger in the past, formed with the fin partly because in assembling operation of the 2nd hole portion
When abut and be easily deformed with other fins etc..Moreover, the part of the fin formed with the 2nd hole portion once deforms, in fin simultaneously
Arrange under setting state, the 2nd hole portion appearance of the fin of deformation is crooked, causes to be difficult to solder being interspersed in wherein.Alternatively, it is also possible to
Consider:Increase the 2nd hole portion diameter, even if so that the 2nd hole portion appearance is crooked, also can be by interspersed solder.However, like this, meeting
So that the area increase for the 2nd hole portion not played a role to heat exchange, causes the thermal efficiency to reduce.In addition, in soldering, can also produce
It is raw:The solder that the solder dissolved flows to the part of the fin left from the 1st hole portion drips the problem of bad.
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2013-11410 publications
The content of the invention
The present invention in view of the above-mentioned problems, to provide a kind of fin tube type heat exchanger as described below and possess the heat
The burner of exchanger is used as its problem, which can suppress to produce:Wing formed with the 2nd hole portion
The problem of deformation of the part of piece and bad solder drippage.
In order to solve the above problems, fin tube type heat exchanger of the invention possesses:It is arranged side by side in thickness of slab direction more
A fin and the heat conducting pipe through these fins, each fin formed with:For for perforative 1st hole portion of heat conducting pipe and
And 2nd hole portion for for solder intert adjacent with the 1st hole portion, the 1st hole portion be by the hole flanging processing hole with hole flanging portion Lai
Form, wherein the hole flanging portion protrudes tubular to the side on the thickness of slab direction of fin, it is characterised in that in each fin, with
The mode of the 1st hole portion is surrounded formed with towards the direction concave cricoid concave part identical with the projected direction in hole flanging portion, with
2nd hole portion can form the 2nd hole portion close to the part of the 1st hole portion into the mode of concave part.
Here, the rigidity that the formation of fin has the part of concave part is enhanced.Moreover, according to the present invention, due to being formed as
2nd hole portion can enter in concave part, therefore the formation that can suppress fin has the deformation of the part of the 2nd hole portion.So in wing
Piece is arranged side by side under state, even if the 2nd hole portion of a part of fin is crooked, can also prevent solder to be difficult to the problem of interspersed.This
Outside, even if the 2nd hole portion is crooked, also It is not necessary to increase the diameter of the 2nd hole portion in order to intert solder, so as to avoid thermal effect
The reduction of rate.In addition, concave part plays a role as the guiding groove that the solder dissolved is directed to the 1st hole portion.Thus, energy
It is enough to suppress to produce:The solder that solder is wandered to the part of the fin left from the 1st hole portion drips bad problem.
In addition, the present invention burner be characterized in that, possess the invention described above fin tube type heat exchanger and into
Burner for the heat source heated to the heat exchanger.Hereby it is possible to provide a kind of burner for improving the thermal efficiency.
Brief description of the drawings
Fig. 1 is the stereogram for the fin tube type heat exchanger for representing embodiments of the present invention.
Fig. 2 is the side sectional view of the major part for the fin tube type heat exchanger for representing embodiment.
Fig. 3 is represented comprising along the other of the fin tube type heat exchanger after III-III line cutting of Fig. 2 and burner
Sectional view including constituting portion material.
Fig. 4 is the side institute on the thickness of slab direction of the fin set by the fin tube type heat exchanger represented from embodiment
It was observed that stereogram.
Fig. 5 is the opposite side on the thickness of slab direction of the fin set by the fin tube type heat exchanger represented from embodiment
Observed stereogram.
Symbol description
A ... fin tube type heat exchangers, 2 ... fins, 23 ... the 1st hole portions, 23a ... hole flangings portion, 24 ... the 2nd hole portions, 25 ...
Concave part, 3 ... heat conducting pipes, 100 ... burners.
Embodiment
The fin tube type heat exchanger A of embodiments of the present invention shown in Fig. 1 to Fig. 3 is provided in be filled by hot water supply
Put the heat exchanger in the burner of composition.With reference to Fig. 3, burner possesses:Fin tube type heat exchanger A and become
To the burner 100 of the heat exchanger A heat sources heated.
Multiple burners 100 are disposed side by side in burning housing 101, and finned tube is provided with the burning housing 101
Formula heat exchanger A.In addition, the lower part in burning housing 101, is provided with:Using isolation board 102 relative to burner 100
The air supply chamber 103 that is isolated of configuration section.Moreover, the air blower outside figure be provided to the air of air supply chamber 103 via
Multiple distribution hole 102a for being formed on isolation board 102 and be fed into burner 100 with auxiliary air as burning.In addition,
The lower part front surface of burning housing 100 is configured with fuel manifold 104.It is provided with fuel manifold 104:Facing to each burner
The nozzle 104a of the inflow entrance 100a of 100 lower front part.Moreover, it is fed into inflow entrance 100a's from nozzle 104a in combustion gas
Meanwhile burning primary air is also supplied to from air supply chamber 103, the gaseous mixture of combustion gas and primary air is from the upper of burner 100
The flame mouth part at end is ejected and burnt.
Fin tube type heat exchanger A possesses:Combined and from the burning of burner 100 with the upper end for the housing 101 that burns
Combustion gas is flowed into its internal main body 1, is incorporated in the wing for the multiple copper coins being arranged side by side in main body 1 and in thickness of slab direction
Piece 2 and multiple heat conducting pipes 3 made of copper through these fins 2, using the heat exchange between combustion gas come to flowing in
Water in heat conducting pipe 3 is heated.
Heat conducting pipe 3 is configured to 2 layers up and down.In lower floor, 4 heat conducting pipes 3 are configured with, on upper strata, with leading positioned at lower floor
The respectively configuration 1 of the mode of the top position of the configuration space part of heat pipe 3, amounts to 3 heat conducting pipes 3 of configuration.Moreover, this 7 are led
Heat pipe 3 is connected in series, and in the outside of main body 1, is connected each 2 heat conducting pipes 3,3 abutted by each return bend 31
Come, in addition, feed pipe 32 to be connected to the heat conducting pipe 3 of upstream end (Tu3Zhong lower floors left end), the hot water outlet pipe outside figure is connected
In the heat conducting pipe 3 of downstream (Fig. 3 at the middle and upper levels left end).
With reference to Fig. 4, Fig. 5, in each fin 2, in a manner of positioned at the configuration space part of the heat conducting pipe 3 of lower floor formed with:
Reach the lack part 21 near the configuration section of the heat conducting pipe 3 on upper strata.In addition, the direction side by side of the heat conducting pipe 3 of each layer up and down is set
It is set to transverse direction, in order to promote the heat exchange between combustion gas, in each fin 2, with positioned at the top of each heat conducting pipe 3 of lower floor
Partial mode is vertically disposed with multiple:The punching of the shape for the laterally-elongated that 2 punching and shaping of fin is formed for tunnel-like
Shape fin part 22.In addition, the punching and shaping fin part 22 of the neighbouring side connect and the punching and shaping fin part of the opposing party
22 punching and shaping direction is opposite each other.
In addition, each fin 2 formed with:For for perforative 1st hole portion 23 of each heat conducting pipe 3 and with 23 phase of the 1st hole portion
Adjacent and the 2nd hole portion 24 for interting for solder.1st hole portion 23 is made of the hole flanging processing hole with hole flanging portion 23a
, wherein hole flanging portion 23a protrudes tubular to the side on the thickness of slab direction of fin 2.Moreover, at hole flanging portion 23a, fin 2
It is brazed in heat conducting pipe 3.In addition, multiple positions in the circumferential direction of the front end of hole flanging portion 23a, set oriented radial outside to bend
Expansion mouth 23b.
In each fin 2, also in a manner of surrounding each 1st hole portion 23 formed with:Towards the projected direction phase with hole flanging portion 23a
The same concave cricoid concave part 25 in direction.Moreover, can be entered close to the part of the 1st hole portion 23 with the 2nd hole portion 24
The mode of concave part 25 forms the 2nd hole portion 24.In addition, when fin 2 is arranged side by side, expansion mouth 23b is connected to:In hole flanging
The side of the concave part 25 of adjacent fin 2 and inner peripheral surface on the projected direction of portion 23a.Accordingly, between fin 2,2
It is constant every being retained as, while can also prevent fin 2 from misplacing up and down on direction.
Here, the formation for improving fin 2 has the rigidity of the part of concave part 25.Thus, by enter concave part
25 mode forms the 2nd hole portion 24, and can to effectively inhibit the formation of fin 2 have the deformation of part of the 2nd hole portion 24.Institute
In assembling, in the state of fin 2 is arranged side by side, can prevent that the 2nd hole portion 24 of a part of fin 2 is crooked and causes
The problem of being difficult to interspersed solder.In addition, even if the 2nd hole portion 24 is crooked, also It is not necessary to increase the 2nd hole portion in order to intert solder
24 diameter, so as to avoid the reduction of the thermal efficiency.
In addition, when fin 2 and heat conducting pipe 3 are brazed, first, carry out the assembling of sub-component, the sub-component be by
Each heat conducting pipe 3 and each solder are respectively interposed to be obtained in each 1st hole portion 23 and 2 hole portions 24 of Ge of the fin 2 for the state that is arranged side by side
Arrive.The sub-component is spun upside down, so that each 2nd hole portion 24 is located at the top of each 1st hole portion 23, in this condition, is thrown
Enter into heating furnace to be brazed.In this case, concave part 25 is directed to the 1st hole portion 23 as by the solder dissolved
Guiding groove and play a role, thereby, it is possible to suppress to produce:Solder wanders the pricker to the part of the fin 2 left from the 1st hole portion 23
Drop falls bad problem.
More than, referring to the drawings, embodiments of the present invention are illustrated, still, the present invention is not limited to this,
Not departing from can make various changes to implement in the range of present inventive concept.Though for example, burner of the above embodiment
It is so hot water supply apparatus, still, the burner being made of following heating installations is equally applicable to the present invention, heating dress
Put and possess:The fin tube type heat exchanger and its heat source that is, burner heated to the thermal medium of heating.
Claims (2)
1. a kind of fin tube type heat exchanger, it possesses:Multiple fins for being arranged side by side in thickness of slab direction and through these wings
The heat conducting pipe of piece;Each fin formed with:For for perforative 1st hole portion of heat conducting pipe and adjacent with the 1st hole portion and be used for
The 2nd hole portion interted for solder, the 1st hole portion are made of the hole flanging processing hole with hole flanging portion, and the wherein hole flanging portion is to wing
Side on the thickness of slab direction of piece protrudes tubular, it is characterised in that
In each fin, in a manner of surrounding the 1st hole portion formed with:It is concave towards the direction identical with the projected direction in hole flanging portion
Cricoid concave part;By the 2nd hole portion close to the part of the 1st hole portion can into concave part in a manner of form the 2nd hole portion.
A kind of 2. burner, it is characterised in that possess fin tube type heat exchanger described in claim 1 and as pair
The burner for the heat source that the heat exchanger is heated.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-205668 | 2016-10-20 | ||
JP2016205668A JP6831206B2 (en) | 2016-10-20 | 2016-10-20 | Fin tube type heat exchanger and combustion device equipped with this heat exchanger |
Publications (1)
Publication Number | Publication Date |
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CN107966045A true CN107966045A (en) | 2018-04-27 |
Family
ID=61997422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201710831326.2A Pending CN107966045A (en) | 2016-10-20 | 2017-09-15 | Fin tube type heat exchanger and the burner for possessing the heat exchanger |
Country Status (2)
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JP (1) | JP6831206B2 (en) |
CN (1) | CN107966045A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110779208A (en) * | 2018-07-27 | 2020-02-11 | 株式会社能率 | Heat exchanger and water heating apparatus provided with same |
CN112313467A (en) * | 2018-07-19 | 2021-02-02 | 凯尔维翁机械冷却系统有限公司 | Heat exchanger |
CN112648739A (en) * | 2019-10-11 | 2021-04-13 | 林内株式会社 | Heat exchanger |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7161930B2 (en) | 2018-10-15 | 2022-10-27 | リンナイ株式会社 | heat transfer fins |
CN111043892B (en) * | 2018-10-15 | 2023-05-02 | 林内株式会社 | Heat transfer fin |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02268966A (en) * | 1989-04-07 | 1990-11-02 | Sumitomo Light Metal Ind Ltd | Manufacture of heat exchanger |
JP2011231993A (en) * | 2010-04-28 | 2011-11-17 | Noritz Corp | Method of manufacturing stainless-made fin and tube type heat exchanger |
CN102445030A (en) * | 2011-12-21 | 2012-05-09 | 浙江同星制冷有限公司 | One-pipe fin type efficient heat exchanger |
JP2013011410A (en) * | 2011-06-29 | 2013-01-17 | Noritz Corp | Fin tube type heat exchanger and hot water device having the same |
JP2014074513A (en) * | 2012-10-03 | 2014-04-24 | Panasonic Corp | Fin tube heat exchanger, heat pump device, and heat transfer fin |
CN103765148A (en) * | 2011-11-25 | 2014-04-30 | 松下电器产业株式会社 | Fin-tube type heat exchanger |
JP2014105951A (en) * | 2012-11-29 | 2014-06-09 | Fujitsu General Ltd | Heat exchanger |
CN105987632A (en) * | 2015-03-16 | 2016-10-05 | 林内株式会社 | Heat transfer fin and heat exchanger using thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02217158A (en) * | 1988-10-28 | 1990-08-29 | Showa Alum Corp | Heat exchanger |
JPH04198691A (en) * | 1990-11-29 | 1992-07-20 | Toshiba Corp | Heat exchanger |
JPH05141889A (en) * | 1991-11-22 | 1993-06-08 | Rinnai Corp | Heat exchanger |
JP3277607B2 (en) * | 1993-04-27 | 2002-04-22 | 株式会社ノーリツ | Heat exchange fins |
JPH0712773U (en) * | 1993-06-24 | 1995-03-03 | パロマ工業株式会社 | Heat exchanger |
US5660230A (en) * | 1995-09-27 | 1997-08-26 | Inter-City Products Corporation (Usa) | Heat exchanger fin with efficient material utilization |
JP3734895B2 (en) * | 1996-10-02 | 2006-01-11 | 古河電気工業株式会社 | heatsink |
CN102116586B (en) * | 2009-12-30 | 2013-11-06 | 富准精密工业(深圳)有限公司 | Heat dissipating device |
CN202885630U (en) * | 2011-11-10 | 2013-04-17 | 松下电器产业株式会社 | Heat transfer fin and finned tube type heat exchanger and heat pump device |
-
2016
- 2016-10-20 JP JP2016205668A patent/JP6831206B2/en active Active
-
2017
- 2017-09-15 CN CN201710831326.2A patent/CN107966045A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02268966A (en) * | 1989-04-07 | 1990-11-02 | Sumitomo Light Metal Ind Ltd | Manufacture of heat exchanger |
JP2011231993A (en) * | 2010-04-28 | 2011-11-17 | Noritz Corp | Method of manufacturing stainless-made fin and tube type heat exchanger |
JP2013011410A (en) * | 2011-06-29 | 2013-01-17 | Noritz Corp | Fin tube type heat exchanger and hot water device having the same |
CN103765148A (en) * | 2011-11-25 | 2014-04-30 | 松下电器产业株式会社 | Fin-tube type heat exchanger |
CN102445030A (en) * | 2011-12-21 | 2012-05-09 | 浙江同星制冷有限公司 | One-pipe fin type efficient heat exchanger |
JP2014074513A (en) * | 2012-10-03 | 2014-04-24 | Panasonic Corp | Fin tube heat exchanger, heat pump device, and heat transfer fin |
JP2014105951A (en) * | 2012-11-29 | 2014-06-09 | Fujitsu General Ltd | Heat exchanger |
CN105987632A (en) * | 2015-03-16 | 2016-10-05 | 林内株式会社 | Heat transfer fin and heat exchanger using thereof |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112313467A (en) * | 2018-07-19 | 2021-02-02 | 凯尔维翁机械冷却系统有限公司 | Heat exchanger |
CN110779208A (en) * | 2018-07-27 | 2020-02-11 | 株式会社能率 | Heat exchanger and water heating apparatus provided with same |
CN112648739A (en) * | 2019-10-11 | 2021-04-13 | 林内株式会社 | Heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
JP2018066516A (en) | 2018-04-26 |
JP6831206B2 (en) | 2021-02-17 |
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