CN102914200A - Heat exchange tube of furnace fume waste heat recycling composite material - Google Patents
Heat exchange tube of furnace fume waste heat recycling composite material Download PDFInfo
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- CN102914200A CN102914200A CN2012103034072A CN201210303407A CN102914200A CN 102914200 A CN102914200 A CN 102914200A CN 2012103034072 A CN2012103034072 A CN 2012103034072A CN 201210303407 A CN201210303407 A CN 201210303407A CN 102914200 A CN102914200 A CN 102914200A
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Abstract
The invention discloses a heat exchange tube of a furnace fume waste heat recycling composite material. The heat exchange tube comprises a columnar flue main body, wherein heat exchange tube components, namely, an internal heat exchange tube component and an external heat exchange tube component, are respectively arranged at the inner side and/or the outer side of the flue main body tightly; and the heat exchange tube components are alloy aluminum tubes with fins. With the adoption of the heat exchange tube (of a furnace) which is smart in structure, both the contact area of heat conduction is increased, the situation that the discharge of the flue is blocked by too many heat radiating sheets, and the internal heat conduction is convenient to clean. As the composite heat exchange tube is in a three-layer structure, the three layers can be integrated into one layer or separated into an outer layer and a middle layer, or a middle layer and an inner layer to be used respectively according to different working situations.
Description
Technical field
The present invention relates to a kind of composite material heat exchange pipe, be specially a kind of heat-exchange tube for boiler smoke-gas residual-heat recovering device Inner, belong to the energy-conserving and environment-protective technical field.
Background technology
With a large amount of heats, if directly discharging is no small energy loss, the heat-exchange tube of the flue gas waste heat recovery apparatus Inner that generally uses at present is hollow pipe or pipe, and to add weldering circle fin Zeng Jia Change hot side long-pending in the flue gas of boiler.Use this type of to touch formula heat exchange heat absorption because existing heat-exchange tube is hollow pipe, can't absorption tube in central temperature, make into the Change thermal conduction effect undesirable, and the low inferior many defectives of effect.
Summary of the invention
The objective of the invention is for a kind of efficient composite material heat exchange pipe is provided, mainly solve fast release heat of heat-exchange tube central temperature and energy.
Purpose of the present invention can be achieved through the following technical solutions.
A kind of residual heat from boiler fume reclaims composite material heat exchange pipe, comprises cylinder flue main body, and the inboard of described flue main body and/or the outside closely are provided with respectively the heat-exchange tube assembly: interior heat-exchange tube assembly and outer heat-exchange tube assembly; Described heat-exchange tube assembly is finned alloy aluminum pipe.
Because the thermal conductivity factor of aluminium is 200, be 3 times of steel, so inner alloy aluminium can be delivered to the middle level steel alloy with the heat in the pipe rapidly, steel alloy is again with heat transferred outer layer alloys aluminium, because outer layer alloys aluminium heat-conducting area is maximum, and heat is promptly discharged.
In addition, because the coefficient of expansion of alloy aluminum is larger than the coefficient of expansion of steel alloy, therefore adopt this stratiform complex method, can be with different metal, be closely linked, make it under different operating modes, can not produce the gap, and be in all the time very high heat conductivity.
Described interior heat-exchange tube assembly cross section five equilibrium is divided into the sector region that four central angles are 90 degree, and the fin of the interior heat-exchange tube assembly of each sector region extends to radial location formation comb teeth-shaped from the alloy aluminum inside pipe wall of interior heat-exchange tube assembly; And the center line of the fin unit in the same sector region is parallel to each other.
Leave the space between the fin of the interior heat-exchange tube assembly of two groups of sector regions that radius is adjacent, form cruciform voids between four groups of sector regions.The fin of the interior heat-exchange tube assembly of this structure can pass the central temperature of flue main body, and be divided into 4 large flow channels, some small flow passages, make high-temperature flue gas form the flow-disturbing boundary condition, enter in the fin flow channel of interior heat-exchange tube assembly, the phenomenon of having avoided high-temperature flue gas center heat outwards to discharge, and between fin unit, form the disorderly phenomenon of a complexity, increased heat exchanger effectiveness.
Angle between the fin unit of two groups of sector regions that radius is adjacent is 90 degree.
Consider firm connection the between the alloy aluminum pipe of fin unit and interior heat-exchange tube assembly, fin unit and and the alloy aluminum pipe of interior heat-exchange tube between the junction thicken; Preferred junction is tangent.
The fin surface of interior heat-exchange tube assembly long-pending for the long-pending 4-5 of the aluminium-alloy pipe inner surface of interior heat-exchange tube assembly doubly; The flue of flue main body hollow accounts for the long-pending 50-55% of flue main body section.Can reach best heat-transfer effect, can not be again that the circulation of cigarette in the flue produces obstruction.
The fin unit of the fin cross section of described outer heat-exchange tube assembly for evenly dispersing from the alloy aluminum pipe lateral wall of outer heat-exchange tube assembly; Described fin unit is bending.Not only obtain larger and contact area hydrothermal exchange, strengthened the performance that releases energy; And the design of camber can be played the effect of confusing heated liquid (water).
Described flue main body is high-grade alloy steel, plays the effect of support frame and transferring heat.
The alloy aluminum thickness of pipe wall of interior heat-exchange tube assembly is 2-3mm; The wall thickness of flue main body is 1.5-2mm; The alloy aluminum thickness of pipe wall of outer heat-exchange tube assembly is 2-3mm.
The heat exchanging pipe of the boiler that designs by the present invention, delicate structure both can improve heat conducting contact area, can prevent that again too much fin from stoping the discharging of flue gas, and interior heat transfer gas was convenient to cleaning.Because the composite wood heat-exchange tube, be three-decker, can the different operating modes of root a tree name, be integrated or disintegrate as skin adds the middle level, or the middle level adds internal layer and uses respectively.
Description of drawings
Fig. 1 is cross-sectional structure schematic diagram of the present invention;
Among the figure: 10, the fin 32 of the alloy aluminum pipe 30 of flue main body 20, interior heat-exchange tube assembly 21, the fin 22 of interior heat-exchange tube assembly, interior heat-exchange tube assembly, outer heat-exchange tube assembly 31, outer heat-exchange tube assembly, the alloy aluminum pipe of outer heat-exchange tube assembly.
The specific embodiment
Further set forth design feature of the present invention below in conjunction with specific embodiment.
A kind of residual heat from boiler fume as shown in Figure 1 reclaims composite material heat exchange pipe, comprise cylinder flue main body 10, the inboard of described flue main body 10 and/or the outside closely are provided with respectively the heat-exchange tube assembly: interior heat-exchange tube assembly 20 and outer heat-exchange tube assembly 30; Described heat-exchange tube assembly is finned alloy aluminum pipe.
Because the thermal conductivity factor of aluminium is 200, be 3 times of steel, so inner alloy aluminium can be delivered to the middle level steel alloy with the heat in the pipe rapidly, steel alloy is again with heat transferred outer layer alloys aluminium, because outer layer alloys aluminium heat-conducting area is maximum, and heat is promptly discharged.
In addition, because the coefficient of expansion of alloy aluminum is beaten than the coefficient of expansion of steel alloy, therefore adopt this stratiform complex method, can be with different metal, be closely linked, make it under different operating modes, can not produce the gap, and be in all the time very high heat conductivity.
Described interior heat-exchange tube assembly 20 cross section five equilibriums are divided into the sector region that four central angles are 90 degree, and the fin 21 of the interior heat-exchange tube assembly of each sector region extends to radial location formation comb teeth-shaped from alloy aluminum pipe 22 inwalls of interior heat-exchange tube assembly; And the center line of the fin unit in the same sector region is parallel to each other.
Leave the space between the fin 21 of the interior heat-exchange tube assembly of two groups of sector regions that radius is adjacent, form cruciform voids between four groups of sector regions.The fin 21 of the interior heat-exchange tube assembly of this structure can pass the central temperature of flue main body, and be divided into 4 large flow channels, some small flow passages, make high-temperature flue gas form the flow-disturbing boundary condition, enter in the fin flow channel of interior heat-exchange tube assembly, the phenomenon of having avoided high-temperature flue gas center heat outwards to discharge, and between fin unit, form the disorderly phenomenon of a complexity, increased heat exchanger effectiveness.
Angle between the fin unit of two groups of sector regions that radius is adjacent is 90 degree.
Consider firm connection the between the alloy aluminum pipe 22 of fin unit and interior heat-exchange tube assembly, fin unit and and the alloy aluminum pipe 22 of interior heat-exchange tube between the junction thicken; Preferred junction is tangent.
Fin 21 surface areas of interior heat-exchange tube assembly are 4-5 times that aluminium-alloy pipe 22 inner surfaces of interior heat-exchange tube assembly amass; The sectional area of the flue of flue main body 10 hollows accounts for the 50-55% of flue main body 10 sectional areas.Can reach best heat-transfer effect, can not be again that the circulation of cigarette in the flue produces obstruction.
The fin unit of fin 31 cross sections of outer heat-exchange tube assembly for evenly dispersing from alloy aluminum pipe 32 lateral walls of outer heat-exchange tube assembly; Described fin unit is bending.Not only obtain larger and contact area hydrothermal exchange, strengthened the performance that releases energy; And the design of camber can be played the effect of confusing heated liquid (water).
Described flue main body 10 is high-grade alloy steel, plays the effect of support frame and transferring heat.
Under the identical operating mode, traditional heat-exchange tube, about 200 ℃ of flue gases enter, and through after the heat exchange, the temperature of approximately discharging is about 140 ℃; And fume of the present invention enters about 200 ℃, and through after the heat exchange, the temperature of discharge is 50-70 ℃.This shows, structure of the present invention can significantly improve the efficient that residual heat from boiler fume reclaims.
Claims (9)
1. a residual heat from boiler fume reclaims composite material heat exchange pipe, comprises cylinder flue main body, and it is characterized in that: the inboard of described flue main body and/or the outside closely are provided with respectively the heat-exchange tube assembly: interior heat-exchange tube assembly and outer heat-exchange tube assembly; Described heat-exchange tube assembly is finned alloy aluminum pipe.
2. residual heat from boiler fume according to claim 1 reclaims composite material heat exchange pipe, it is characterized in that: described interior heat-exchange tube assembly cross section five equilibrium is divided into the sector region that four central angles are 90 degree, and the fin of the interior heat-exchange tube assembly of each sector region extends to radial location formation comb teeth-shaped from the alloy aluminum inside pipe wall of interior heat-exchange tube assembly; And the center line of the fin unit in the same sector region is parallel to each other.
3. residual heat from boiler fume according to claim 2 reclaims composite material heat exchange pipe, it is characterized in that: leave the space between the fin of the interior heat-exchange tube assembly of two groups of sector regions that radius is adjacent, form cruciform voids between four groups of sector regions.
4. residual heat from boiler fume according to claim 2 reclaims composite material heat exchange pipe, it is characterized in that: the angle between the fin unit of two groups of sector regions that radius is adjacent is 90 degree.
5. residual heat from boiler fume according to claim 2 reclaims composite material heat exchange pipe, it is characterized in that: fin unit and and the alloy aluminum pipe of interior heat-exchange tube between the junction thicken.
6. residual heat from boiler fume according to claim 5 reclaims composite material heat exchange pipe, it is characterized in that: fin unit and and the alloy aluminum pipe of interior heat-exchange tube between the junction tangent.
7. residual heat from boiler fume according to claim 1 reclaims composite material heat exchange pipe, it is characterized in that: the fin surface of interior heat-exchange tube assembly long-pending for the long-pending 4-5 of the aluminium-alloy pipe inner surface of interior heat-exchange tube assembly doubly; The flue of flue main body hollow accounts for the long-pending 50-55% of flue main body section.
8. residual heat from boiler fume according to claim 1 reclaims composite material heat exchange pipe, it is characterized in that: the fin unit of the fin cross section of described outer heat-exchange tube assembly for evenly dispersing from the alloy aluminum pipe lateral wall of outer heat-exchange tube assembly; Described fin unit is bending.
9. residual heat from boiler fume according to claim 1 reclaims composite material heat exchange pipe, and it is characterized in that: the alloy aluminum thickness of pipe wall of interior heat-exchange tube assembly is 2-3mm; The wall thickness of flue main body is 1.5-2mm; The alloy aluminum thickness of pipe wall of outer heat-exchange tube assembly is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103034072A CN102914200A (en) | 2012-08-23 | 2012-08-23 | Heat exchange tube of furnace fume waste heat recycling composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103034072A CN102914200A (en) | 2012-08-23 | 2012-08-23 | Heat exchange tube of furnace fume waste heat recycling composite material |
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| CN102914200A true CN102914200A (en) | 2013-02-06 |
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| CN2012103034072A Pending CN102914200A (en) | 2012-08-23 | 2012-08-23 | Heat exchange tube of furnace fume waste heat recycling composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406445A (en) * | 2014-11-24 | 2015-03-11 | 无锡鸿声铝业有限公司 | Aluminum finned tube heat exchanger |
| CN110579035A (en) * | 2018-06-11 | 2019-12-17 | 同济大学 | Heat exchanger and pulse tube refrigerator comprising same |
| CN111623233A (en) * | 2019-02-28 | 2020-09-04 | 现代自动车株式会社 | Solid hydrogen storage device |
| CN116537921A (en) * | 2023-04-11 | 2023-08-04 | 浙江三可热交换系统有限公司 | Heat exchanger and system for waste heat recovery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144558A (en) * | 1994-03-24 | 1997-03-05 | 霍瓦英特利兹股份公司 | Heat exchanger tube for heating boilers |
| CN2436781Y (en) * | 2000-08-08 | 2001-06-27 | 王德元 | Flue duct with double-layer sleeve |
| CN201184767Y (en) * | 2008-01-08 | 2009-01-21 | 王全龄 | High rib type heat-exchanging tube shaped by ironing aluminum |
| CN201277831Y (en) * | 2008-08-29 | 2009-07-22 | 登达普(北京)资源节能科技有限公司 | Heat exchanger with inner fins |
| CN202770299U (en) * | 2012-08-23 | 2013-03-06 | 上海青盛工程设备安装有限公司 | Composite material heat-exchanger tube for flue gas waste heat recovery of boiler |
-
2012
- 2012-08-23 CN CN2012103034072A patent/CN102914200A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144558A (en) * | 1994-03-24 | 1997-03-05 | 霍瓦英特利兹股份公司 | Heat exchanger tube for heating boilers |
| CN2436781Y (en) * | 2000-08-08 | 2001-06-27 | 王德元 | Flue duct with double-layer sleeve |
| CN201184767Y (en) * | 2008-01-08 | 2009-01-21 | 王全龄 | High rib type heat-exchanging tube shaped by ironing aluminum |
| CN201277831Y (en) * | 2008-08-29 | 2009-07-22 | 登达普(北京)资源节能科技有限公司 | Heat exchanger with inner fins |
| CN202770299U (en) * | 2012-08-23 | 2013-03-06 | 上海青盛工程设备安装有限公司 | Composite material heat-exchanger tube for flue gas waste heat recovery of boiler |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406445A (en) * | 2014-11-24 | 2015-03-11 | 无锡鸿声铝业有限公司 | Aluminum finned tube heat exchanger |
| CN110579035A (en) * | 2018-06-11 | 2019-12-17 | 同济大学 | Heat exchanger and pulse tube refrigerator comprising same |
| CN111623233A (en) * | 2019-02-28 | 2020-09-04 | 现代自动车株式会社 | Solid hydrogen storage device |
| CN111623233B (en) * | 2019-02-28 | 2024-04-19 | 现代自动车株式会社 | Solid hydrogen storage device |
| CN116537921A (en) * | 2023-04-11 | 2023-08-04 | 浙江三可热交换系统有限公司 | Heat exchanger and system for waste heat recovery |
| CN116537921B (en) * | 2023-04-11 | 2024-02-23 | 浙江三可热交换系统有限公司 | Heat exchanger and system for waste heat recovery |
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Application publication date: 20130206 |