CN102393158A - Steel-aluminum compounding finned tube and processing method thereof as well as heat exchanger manufactured by same - Google Patents
Steel-aluminum compounding finned tube and processing method thereof as well as heat exchanger manufactured by same Download PDFInfo
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- CN102393158A CN102393158A CN201110202268XA CN201110202268A CN102393158A CN 102393158 A CN102393158 A CN 102393158A CN 201110202268X A CN201110202268X A CN 201110202268XA CN 201110202268 A CN201110202268 A CN 201110202268A CN 102393158 A CN102393158 A CN 102393158A
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Abstract
The invention relates to a steel-aluminum compounding finned tube and a processing method thereof, as well as a water-air heat exchanger manufactured by the same. The steel-aluminum compounding finned tube provided by the invention is brazed by a parent tube and a plurality of fins, wherein the parent tube is of a complete aluminized steel compounding tubular product with an aluminum layer outer surface, and the fins are aluminium fins provided with through-tube openings in the middle and form curled edges at the through-tube openings. The processing method of the steel-aluminum compounding finned tube provided by the invention comprises the steps of: raw material preparation, punching sheet and tube penetration, finned tube cleaning, soaking with a soldering flux liquid, assembly of a stokehold fixture, brazing in a furnace and the like. The invention is capable of combining the advantages of the steel tube steel fin radiator and the aluminum pipe aluminum fin radiator so as to form a steel tube aluminum fin radiator, thus being favor of improving resistance to corrosion, protecting environment, ensuring strength of the heat exchanger finned tube and improving heat dissipation efficiency of the heat exchanger. Simultaneously, continuous production of a brazing process can be realized, the capacity and quality of the product can be improved and the production cost can be reduced.
Description
Technical field
The present invention relates to a kind of steel-aluminum composite fin tube and processing method, refer in particular to the steel-aluminum composite fin tube that constitutes by steel pipe and aluminium fin, and water-air heat exchanger of processing with this finned tube.
Background technology
Existing thermal power plant table coagulates water-air heat exchanger that the formula indirect air cooling system is adopted, and its basic application technology scheme is:
After having absorbed the turbine discharge condensation heat; Recirculated cooling water gets in the huge many groups surface-type water-air heat exchanger of overall dimensions; This heat exchanger utilizes surrounding air to ventilate and passes heat exchanger radiating tube gap; Take away the heat of recirculated cooling water, make it to cool to the degree that can continue to absorb the turbine discharge condensation heat.
In this technical process, water-air heat exchanger is a key equipment, its efficiently heat dissipation and good spatial placement mode be to reducing the construction costs, improve the main points of unit output level, also be improved direction and goal.
Existing fin-tube heat exchanger is divided into two types by material.A kind of employing steel parent tube, nested steel fin is formed finned tube.Existing steel pipe steel fin radiator, because its parent tube adopts steel pipe, so its parent tube intensity is high, can realize the single finned tubular radiator that 10m is above.But steel pipe steel fin radiator is exposed to outdoor easy corrosion, so will adopt hot-dip galvanizing technique in the process of manufacture, and its production process is unfavorable for environmental requirement, and its production cost is also high simultaneously.In addition, comparatively speaking, the radiating efficiency of steel fin is high not as the aluminium fin, and this has influenced the radiating efficiency of radiator to a certain extent.
The another kind of aluminium matter parent tube that adopts, full wafer aluminium sheet expanded joint is formed finned-tube bundle as fin.Two kinds of heat exchangers can both be realized water-air heat exchange, but certain defective is all arranged when taking all factors into consideration aspect such as manufacturing cost, outdoor mounted operation intensity, heat exchange efficiency.Existing aluminum pipe aluminium fin radiator has resistance to corrosion and good performance of heat dissipation preferably.But because its parent tube is an aluminum pipe, intensity is lower, therefore can not realize large-sized whole single tube radiator, must adopt the mode of splicing that heat exchanger length is reached more than the 10m.This has increased field-installed workload on the one hand, makes the tightness of overall heat exchanger reduce on the other hand, easily in operation troubles such as leaking, freeze appear in the splicing position.In addition, because the heat exchanger fine aluminium is made, cost is very high.
Summary of the invention
The object of the present invention is to provide a kind of steel-aluminum composite fin tube that constitutes by steel pipe and aluminium fin, and water-air heat exchanger of processing with this finned tube.This heat exchanger can combine the advantage of steel pipe steel fin radiator and aluminum pipe aluminium fin radiator, realizes steel pipe aluminium fin radiator, is guaranteeing on the parent tube intensity based; Improve the heat exchanger radiating efficiency; Improve resistance to corrosion, avoid hot-dip galvanizing technique, reduce production costs.
Another object of the present invention is to provide a kind of processing method of novel indirect air cooling system air-water-to-water heat exchanger,, realize the continuous production processes of steel aluminum finned tube, guarantee the production capacity and the quality of product through adopting the mode of controlled atmosphere soldering.
Steel-aluminum composite fin tube of the present invention is made up of parent tube and a plurality of fin.Wherein parent tube is the complete steel aluminizing composite pipe of outer surface aluminium lamination.Wherein fin forms crimping for middle aluminous fin with poling perforate at the poling tapping.This fin is provided with the spacing pawl, and above-mentioned parent tube and aluminous fin utilize soldering to be fixed as one.
Water-air heat exchanger of being processed by steel-aluminum composite fin tube of the present invention comprises finned tube, and this finned tube is a steel pipe aluminium fin finned tube.
The processing method of a kind of steel-aluminum composite fin tube of the present invention comprises following processing step:
1, raw material are prepared: parent tube will be selected the complete steel aluminizing composite pipe of outer surface aluminium lamination, and the aluminium fin is wanted the alloy aluminium sheet of select tape solder composite bed.
2, punching poling: will become fin shape with the alloy aluminium sheet punching out of solder composite bed by punch press, and then a plurality of fins worn on the parent tube in proper order.
3, finned tube cleans: the finned tube of putting on carries out washing and cleaning operation with alkaline (pH>7) cleaning fluid.
4, brazing flux liquid soaks: put into the brazing flux liquid bath through the finned tube that cleans and soak.
5, stokehold jig frock: the finned tube that soaks through brazing flux liquid utilizes stokehold jig frock to support the location.
6, go into the slice weldering: adopt the soldering of controlled atmosphere formula, finned tube is carried out continuous braze welding.
Advantage of the present invention is: use the advantage that the present invention program can combine steel pipe steel fin radiator and aluminum pipe aluminium fin radiator; Realize steel pipe aluminium fin radiator; Make that being exposed to outside material is aluminium, not perishable, help improving resistance to corrosion; And can avoid hot-dip galvanizing technique, help environmental protection; Can guarantee the intensity of finned tube, improve the heat exchanger radiating efficiency, reduce the assembled on site workload.Simultaneously, the present invention can realize that soldering processes produce continuously, improves the production capacity and the quality of product, reduces production costs.
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Description of drawings
Fig. 1 is the structural representation of steel-aluminum composite fin tube;
Fig. 2 is the partial enlarged drawing I of Fig. 1;
Fig. 3 is the structural representation of water-air heat exchanger of being processed by steel-aluminum composite fin tube;
Fig. 4 is the cutaway view of Fig. 3;
Fig. 5 is the processing process figure of steel pipe aluminium fin fin water tube-air heat exchanger.
The specific embodiment
The structure of the described steel pipe aluminium of present embodiment fin finned tube is like accompanying drawing 1, shown in 2; This finned tube is made up of parent tube 31 and a plurality of fins 32; Wherein parent tube 31 may be selected to be the pipe of elliptical tube, pipe or other shape, selects elliptical tube in the present embodiment for use, helps improving heat exchange property.Parent tube 31 adopts steel pipe external application aluminium composite material.Parent tube 31 is welded for rolling, wall thickness 1.5mm.
The described fin 32 of present embodiment is a rectangular fin; Select alloy clad aluminium material to form by the punch press punching out; The centre is provided with and the corresponding oval poling perforate 321 of parent tube 31 profiles, and forms crimping 322 at these poling perforate 321 places, is beneficial to parent tube 31 closely to contact.Fin is provided with spacing pawl 323, is also formed by a punching out of punch press, and spacing pawl 323 can guarantee the constant spacing of fin, increases the disturbance when air is horizontal plunders simultaneously, is beneficial to heat exchange.
Above-mentioned a plurality of rectangular fins 32 orders are set on assembling becomes finned tube on the parent tube 31, and are fixed as one through soldering.
Adopting the described steel pipe aluminium of present embodiment fin finned tube 3, can have various ways to be assembled into heat exchanger, Fig. 3, shown in 4 is a kind of typical heat sink, and its architectural feature is: this heat exchanger can be adjusted at the length and the cross direction of block dimension according to actual needs.The adjusting range of length is 0.6～15m, and the adjusting range of cross-sectional width is 320～2270mm.This heat exchanger adopts water side double fluid journey mode, and water inlet 1 and delivery port 2 are at same end, and heat exchanger adopts biserial finned tube 3 as the surface-type cooling element, and wherein an end of a row finned tube 3 connects water inlet, and an end of another row finned tube 3 connects delivery port.The other end of all finned tubes 3 connects the termination header, and utilizes the UNICOM that is communicated with termination header realization water inlet 1 and delivery port 2.Horizontal the plunderring of surrounding air passed the finned tube gap, realizes heat exchange.
Present embodiment is described the technological process of production of a kind of steel pipe aluminium fin finned tube and heat exchanger, referring to accompanying drawing 5:
1, prepare at raw material: parent tube 31 will be selected to roll the parent tube that forms by steel aluminizing composite board, and the aluminizing layer thickness is not less than 50 μ m, and the pipe crimping commissure will adopt spraying or other means to replenish aluminium, guarantees that aluminium lamination coats the parent tube outer surface fully.Aluminium fin 32 is wanted the alloy aluminium sheet of select tape composite bed, and thickness is 0.2-0.35mm.The alloy aluminum purpose is to improve the mechanical strength of aluminium fin, and composite bed provides brazing process required solder.This solder composition will be confirmed according to the brazing process process characteristic.But the composite bed single face is compound, also can be two-sided compound, and the composite bed gross thickness is not less than 10% of aluminium plate thickness.
2, punching poling: will become fin shape with the alloy aluminium sheet punching out of solder composite bed with punch press, and then a plurality of fin 32 orders worn on the parent tube 31.
3, finned tube cleans: the finned tube of putting on carries out washing and cleaning operation in cleaning sink, greasy dirt and the impurity of fin 32 with parent tube 31 surfaces are cleaned up, with guarantee brazing flux liquid next adhere to and brazing process in solder mobile.Cleaning fluid is alkalescence (pH>7) and keeps suitable temperature.
4, brazing flux liquid soaks: put into the brazing flux liquid bath through the finned tube that cleans and soak, and even for guaranteeing brazing flux, to install equipment such as ultrasonic stirring device in the brazing flux liquid bath.To seal finned tube 3 two ends during immersion.
5, stokehold jig frock: the finned tube that soaks through brazing flux liquid utilizes stokehold jig frock to support the location.Stokehold jig frock will guarantee the fixing of finned tube, guarantees relative position and angle between fin, the parent tube.And prevent that finned tube from high temperature deforming.
6, go into the slice weldering: adopt the soldering of controlled atmosphere formula when going into the slice weldering, finned tube is realized working continuously.The technological parameter of soldering oven will be complementary with the total amount production process of finned tube, control soldering oven temperature curve, speed of welding, oxygen content etc. well.
7, Assembly And Checkout: the finned tube qualified with soldering is assembled into radiator, and carries out necessary quality inspection.
Claims (7)
1. steel-aluminum composite fin tube; Comprise fin and parent tube; It is characterized in that: parent tube is the complete steel aluminizing composite pipe of outer surface aluminium lamination, and fin forms crimping for middle aluminous fin with poling perforate at the poling tapping; This fin is provided with the spacing pawl, and above-mentioned parent tube and aluminous fin utilize soldering to be fixed as one.
2. a water-air heat exchanger of being processed by steel-aluminum composite fin tube comprises finned tube, it is characterized in that: said finned tube is a steel pipe aluminium fin finned tube.
3. the processing method of a steel-aluminum composite fin tube is characterized in that comprising following processing step:
(1), raw material are prepared: parent tube will be selected the complete steel aluminizing composite pipe of outer surface aluminium lamination, and the aluminium fin is wanted the alloy aluminium sheet of select tape solder composite bed;
(2), punching poling: will become fin shape with the alloy aluminium sheet punching out of solder composite bed by punch press, and wear a plurality of fins on the parent tube in proper order then;
(3), finned tube cleans: the finned tube of putting on carries out washing and cleaning operation with alkaline (pH>7) cleaning fluid;
(4), brazing flux liquid soaks: put into the brazing flux liquid bath through the finned tube that cleans and soak;
(5), stokehold jig frock: the finned tube that soaks through brazing flux liquid utilizes stokehold jig frock to support the location;
(6), go into the slice weldering: adopt the soldering of controlled atmosphere formula, finned tube is carried out continuous braze welding.
4. a kind of steel-aluminum composite fin tube as claimed in claim 1 is characterized in that: parent tube may be selected to be the pipe of elliptical tube, pipe or other shape.
5. a kind of steel-aluminum composite fin tube as claimed in claim 1 is characterized in that: parent tube is welded for rolling, wall thickness 1.5mm.
6. water-air heat exchanger of processing by steel-aluminum composite fin tube as claimed in claim 2; It is characterized in that: this heat exchanger can be adjusted at the length and the cross direction of block dimension according to actual needs; The adjusting range of length is 0.6～15m, and the adjusting range of cross-sectional width is 320～2270mm.
7. water-air heat exchanger of processing by steel-aluminum composite fin tube as claimed in claim 2; It is characterized in that: heat exchanger adopts water side double fluid journey mode, and water inlet and delivery port are at same end, and heat exchanger adopts the biserial finned tube as the surface-type cooling element; Wherein an end of a row finned tube connects water inlet; One end of another row finned tube connects delivery port, and the other end of all finned tubes connects the termination header, and utilizes the UNICOM that is communicated with termination header realization water inlet and delivery port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110202268XA CN102393158A (en) | 2011-07-19 | 2011-07-19 | Steel-aluminum compounding finned tube and processing method thereof as well as heat exchanger manufactured by same |
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| CN201110202268XA CN102393158A (en) | 2011-07-19 | 2011-07-19 | Steel-aluminum compounding finned tube and processing method thereof as well as heat exchanger manufactured by same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134368A (en) * | 2012-11-14 | 2013-06-05 | 北京龙源冷却技术有限公司 | Finned tube and heat exchanger and manufacturing method of heat exchanger |
| CN104493449A (en) * | 2014-11-26 | 2015-04-08 | 浙江康盛热交换器有限公司 | Air cooling refrigerator and freezer serpentine parallel flow condenser manufacture process |
| CN105817849A (en) * | 2016-04-29 | 2016-08-03 | 芜湖美威包装品有限公司 | Manufacturing technology of high-performance energy-saving environment-friendly heat exchanger |
| US9566672B2 (en) | 2012-12-10 | 2017-02-14 | Lg Electronics Inc. | Method of manufacturing a heat exchanger |
| CN107643004A (en) * | 2016-07-22 | 2018-01-30 | 德州华春环保科技有限公司 | A kind of graphene heat exchanger |
| CN112222760A (en) * | 2019-06-30 | 2021-01-15 | 合肥太通制冷科技有限公司 | Production process of brazing type plate-tube evaporator |
| CN114133838A (en) * | 2021-11-29 | 2022-03-04 | 江阴博圣热能科技有限公司 | Composite aluminum pipe G-shaped pipe and processing technology thereof |
| CN114178340A (en) * | 2021-12-06 | 2022-03-15 | 江阴博圣热能科技有限公司 | Laser welding aluminum finned tube and processing technology thereof |
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| CN86104136A (en) * | 1986-12-13 | 1988-07-06 | 上海异型钢管厂 | Titanium-aluminum composite fin tube and manufacturing process |
| CN1266176A (en) * | 2000-03-06 | 2000-09-13 | 刘汉龙 | Steel-aluminium cold-rolled fined tube radiator |
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| CN101666584A (en) * | 2009-09-15 | 2010-03-10 | 广东万家乐燃气具有限公司 | Finned pipe exchanger with copper-aluminum composite pipe for gas instantaneous water heater |
| CN201788789U (en) * | 2010-07-23 | 2011-04-06 | 上海海鼎实业发展有限公司 | Oil-water cooling device with copper-aluminum composite low fins |
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2011
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| CN86104136A (en) * | 1986-12-13 | 1988-07-06 | 上海异型钢管厂 | Titanium-aluminum composite fin tube and manufacturing process |
| CN1266176A (en) * | 2000-03-06 | 2000-09-13 | 刘汉龙 | Steel-aluminium cold-rolled fined tube radiator |
| JP2003121089A (en) * | 2001-10-17 | 2003-04-23 | Japan Steel Works Ltd:The | Heat exchanger |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134368A (en) * | 2012-11-14 | 2013-06-05 | 北京龙源冷却技术有限公司 | Finned tube and heat exchanger and manufacturing method of heat exchanger |
| US9566672B2 (en) | 2012-12-10 | 2017-02-14 | Lg Electronics Inc. | Method of manufacturing a heat exchanger |
| CN104493449A (en) * | 2014-11-26 | 2015-04-08 | 浙江康盛热交换器有限公司 | Air cooling refrigerator and freezer serpentine parallel flow condenser manufacture process |
| CN105817849A (en) * | 2016-04-29 | 2016-08-03 | 芜湖美威包装品有限公司 | Manufacturing technology of high-performance energy-saving environment-friendly heat exchanger |
| CN107643004A (en) * | 2016-07-22 | 2018-01-30 | 德州华春环保科技有限公司 | A kind of graphene heat exchanger |
| CN112222760A (en) * | 2019-06-30 | 2021-01-15 | 合肥太通制冷科技有限公司 | Production process of brazing type plate-tube evaporator |
| CN114133838A (en) * | 2021-11-29 | 2022-03-04 | 江阴博圣热能科技有限公司 | Composite aluminum pipe G-shaped pipe and processing technology thereof |
| CN114178340A (en) * | 2021-12-06 | 2022-03-15 | 江阴博圣热能科技有限公司 | Laser welding aluminum finned tube and processing technology thereof |
| CN114178340B (en) * | 2021-12-06 | 2024-02-06 | 江阴博圣热能科技有限公司 | Laser welding aluminum finned tube and processing technology thereof |
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Application publication date: 20120328 |