CN102360743A - Plate-fin heat exchanger of transformer and manufacturing method for plate-fin heat exchanger - Google Patents

Plate-fin heat exchanger of transformer and manufacturing method for plate-fin heat exchanger Download PDF

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Publication number
CN102360743A
CN102360743A CN2011101518599A CN201110151859A CN102360743A CN 102360743 A CN102360743 A CN 102360743A CN 2011101518599 A CN2011101518599 A CN 2011101518599A CN 201110151859 A CN201110151859 A CN 201110151859A CN 102360743 A CN102360743 A CN 102360743A
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China
Prior art keywords
fin
heat exchanger
substrate
fluid flow
parallel
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CN2011101518599A
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Chinese (zh)
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CN102360743B (en
Inventor
茅文焯
茅忠萍
杨惠康
邱燃
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Shanghai Dongrun Heat Exchange Equipment Co ltd
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SHANGHAI DONGRUN HEAT-EXCHANGE EQUIPMENT MANUFACTURING Co Ltd
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Priority to CN 201110151859 priority Critical patent/CN102360743B/en
Publication of CN102360743A publication Critical patent/CN102360743A/en
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Abstract

The invention discloses a plate-fin heat exchanger of a transformer. The plate-fin heat exchanger comprises a liquid inlet flow pipe and a liquid outlet flow pipe, wherein the liquid inlet flow pipe and the liquid outlet flow pipe are connected by a group of heat exchange sheets; liquid flow channels, through which transformer oil passes, are arranged in the heat exchange sheets; the liquid flow channels are parallel to one another; two ends of each liquid flow channel are communicated with inner parts of the liquid inlet flow pipe and the liquid outlet flow pipe respectively; air flow channels which are parallel to one another are arranged on the external parts of the heat exchange sheets; and the heat exchange sheets are arranged between the liquid inlet flow pipe and the liquid outlet flow pipe in parallel. A manufacturing method for the plate-fin heat exchanger comprises the following steps of: manufacturing stamping steel plates and rectangular fins; coating an aluminum-coated layer on the surface of each stamping steel plate; welding and sealing edges of two stamping steel plates; arranging the rectangular fins in parallel and then fixing the rectangular fins on the surface of a base plate to form heat exchange sheets; connecting and fixing the heat exchange sheets by a reinforcing plate; connecting two ends of each heat exchange sheet and the liquid inlet flow pipe and the liquid outlet flow pipe respectively; integrally assembling; and performing pressure tests to obtain the finished plate-fin heat exchanger.

Description

A kind of transformer board fin heat exchanger and manufacturing approach thereof
Technical field
The present invention relates to the transformer oil cooling technology, especially relate to a kind of transformer board fin heat exchanger and manufacturing approach thereof.
Background technology
The exploitation of new type high efficient heat exchanger and manufacturing technology are the focuses of field of energy utilization research always, and it is directly connected to the energy utilization rate of industries such as chemical industry, electric power, petrochemical industry.
At present, a large amount of use plate heat exchangers is arranged also to the heat exchanger of industries such as chemical industry, electric power, petrochemical industry, dynamic power machine, its fluid passage in water as heat transfer medium, through substrate and extraneous air realization heat conduction and heat convection.Advantage is to manufacture and design easyly, and shortcoming is that heat exchange weak effect, equipment volume are big, structure is not compact, take up room big, that material is economized consumption is big, invests also greatly, causes equipment cost and operating cost all than higher.
According to heat transfer theory,, install fin additional in heat exchanger tube tube bank outside usually for strengthening the heat transfer of air side; Make full use of the fin inned coefficient of rectangular fin group, with expansion heat-transfer area augmentation of heat transfer, simultaneously in order to improve the fin utilization ratio; Fully optimize fluid turbulent degree between wing; Can obtain preferable augmentation of heat transfer effect, according to on-the-spot installation site and adopt natural draft or the mechanical draft type of cooling, with the fin channels reasonable Arrangement on substrate surface.
Summary of the invention
Existing heat-exchanger rig heat exchange efficiency is low, equipment volume big, structure is not compact in order to solve, it is big to take up room, material province consumption is big, investment is also big, cause equipment cost and operating cost all than higher defective.
One aspect of the present invention provides a kind of transformer board fin heat exchanger, and the technical scheme that is adopted is,
A kind of transformer board fin heat exchanger comprises into fluid flow tube and goes out fluid flow tube, saidly advances fluid flow tube and goes out fluid flow tube and be connected by one group of heat exchanger fin; The heat exchanger fin set inside has the flow channel for liquids that supplies transformer oil to pass through; Flow channel for liquids is arranged in parallel, the flow channel for liquids two ends respectively with advance fluid flow tube with go out the fluid flow tube internal communication, the heat exchanger fin outer setting has the gas flow that is arranged in parallel; Heat exchanger fin is parallel to into fluid flow tube and goes out between the fluid flow tube, and said heat exchanger fin is connected fixing by stiffener.
Said heat exchanger fin comprises substrate and rectangular fin; Said substrate is welded by two blocks of identical punching press steel plates; Between the punching press steel plate, form said flow channel for liquids, outer surface of substrate is established and is coated with aluminum cladding, and rectangular fin is arranged at the substrate both sides; Said rectangular fin is stamped to form by aluminium sheet, forms the gas flow that is arranged in parallel on it.
In one embodiment, said gas flow is parallel with the flow channel for liquids direction.
In one embodiment, said gas flow is vertical with the flow channel for liquids direction.
The present invention provides the manufacturing approach of above-mentioned transformer board fin heat exchanger on the other hand, and the technical scheme that is adopted is,
1) adopt Sheet Metal Forming Technology to make punching press steel plate and rectangular fin;
2) clean the punching press steel plate, at punching press steel plate surface-coated aluminum cladding;
3) adopt two-sided roll welding technology with two stamped steel panel edges welded seals;
4) for strengthening the compressive strength of liquid in the substrate internal liquid runner, it is fixing that the groove in the middle of the substrate adopts spot welding to strengthen;
5) residue, oxide and the oil stain on cleaning base plate and the fin;
6) adopt spot-welding technology, be fixed on substrate surface after rectangular fin is arranged in parallel, form heat exchanger fin;
7) adopt furnace brazing to handle rectangular fin that fixes and substrate, reduce the contact heat resistance between rectangular fin and the substrate, enhance heat transfer improves the preservative treatment ability simultaneously;
8) one group of heat exchanger fin is connected by stiffener fixing, with the heat exchanger fin two ends respectively with advance fluid flow tube and go out fluid flow tube and is connected, overall package is carried out pressure test, finally completion.
This heat exchanger makes transformer oil flow along gas flow is equidirectional along flow channel for liquids direction and air according to heat exchange requirement and space mounting position, and the flow path of heat transferring medium is parallel; Perhaps transformer oil flows along the gas flow direction along flow channel for liquids direction and air in vertical direction; The flow path distributary of heat transferring medium utilizes " stack effect " with augmentation of heat transfer, strengthens the flow velocity of cold air in the gas flow; Reduce resistance; Increase section circulation flow, be difficult for ash deposit and slag buildup, easy to maintenance; Adopt steel-aluminum composite plate material, not only improved corrosion resistance, avoided using the material of expensive simultaneously; Reduced cost, in the finite temperature zone, identical temperature environment; Finned plate heat exchanger is more obvious than general conventional traditional heat exchanger heat exchange effect, and energy-saving effect significantly improves.
Description of drawings
Fig. 1 is the structural representation of the transformer board fin heat exchanger that proposes of the present invention;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the viewgraph of cross-section of heat exchanger fin;
Fig. 4 is a substrate welding sketch map.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with diagram and specific embodiment, further set forth the present invention.
Like Fig. 1, shown in Figure 2; The transformer board fin heat exchanger that the present invention proposes comprises into fluid flow tube 110 and goes out fluid flow tube 120; Saidly advance fluid flow tube 110 and go out fluid flow tube 120 and be connected by heat exchanger fin 200, heat exchanger fin 200 set inside have the flow channel for liquids that supplies transformer oil to pass through, and flow channel for liquids is arranged in parallel; The flow channel for liquids two ends respectively with advance fluid flow tube 110 and go out fluid flow tube 120 internal communication; Heat exchanger fin 200 outer setting have the gas flow that is arranged in parallel, and heat exchanger fin 200 is parallel to into fluid flow tube 110 and goes out between the fluid flow tube 120, and said heat exchanger fin 200 connects fixing by stiffener 300.
Concrete, as shown in Figure 3, said heat exchanger fin comprises substrate 210 and rectangular fin 220; Said substrate 210 is welded by two blocks of identical punching press steel plates; Between the punching press steel plate, form flow channel for liquids 211, substrate 210 outer surfaces are established and are coated with aluminum cladding, and rectangular fin 220 is arranged at substrate 210 both sides; Rectangular fin 220 is stamped to form by aluminium sheet, forms the gas flow 221 that is arranged in parallel on it.
In the present embodiment, said gas flow 221 can be set to parallel with flow channel for liquids 211 directions.
Said gas flow 221 also can be set to vertical with flow channel for liquids 211 directions.
This heat exchanger makes transformer oil flow along gas flow is equidirectional along flow channel for liquids direction and air according to heat exchange requirement and space mounting position, and the flow path of heat transferring medium is parallel; Perhaps transformer oil flows along the gas flow direction along flow channel for liquids direction and air in vertical direction; The flow path distributary of heat transferring medium utilizes " stack effect " with augmentation of heat transfer, strengthens the flow velocity of cold air in the gas flow; Reduce resistance; Increase section circulation flow, be difficult for ash deposit and slag buildup, easy to maintenance; Adopt steel-aluminum composite plate material, not only improved corrosion resistance, avoided using the material of expensive simultaneously; Reduced cost, in the finite temperature zone, identical temperature environment; Finned plate heat exchanger is more obvious than general conventional traditional heat exchanger heat exchange effect, and energy-saving effect significantly improves.
The technical scheme that manufacturing approach adopted of above-mentioned transformer board fin heat exchanger is,
1) adopt Sheet Metal Forming Technology to make punching press steel plate and rectangular fin;
2) clean the punching press steel plate, at punching press steel plate surface-coated aluminum cladding;
3) adopt two-sided roll welding technology with two stamped steel panel edges welded seals;
4) for strengthening the compressive strength of liquid in the substrate internal liquid runner, it is fixing that the groove in the middle of the substrate adopts spot welding to strengthen;
5) residue, oxide and the oil stain on cleaning base plate and the fin;
6) adopt spot-welding technology, be fixed on substrate surface after rectangular fin is arranged in parallel, form heat exchanger fin;
7) adopt furnace brazing to handle rectangular fin that fixes and substrate, reduce the contact heat resistance between rectangular fin and the substrate, enhance heat transfer improves the preservative treatment ability simultaneously;
8) one group of heat exchanger fin is connected by stiffener fixing, with the heat exchanger fin two ends respectively with advance fluid flow tube and go out fluid flow tube and is connected, overall package is carried out pressure test, finally completion.
The two-sided roll welding and the spot welding zone of substrate are as shown in Figure 4.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection range to be defined by appending claims and equivalent thereof.

Claims (6)

1. transformer board fin heat exchanger comprises into fluid flow tube and goes out fluid flow tube, it is characterized in that; Saidly advance fluid flow tube and go out fluid flow tube and be connected by one group of heat exchanger fin; The heat exchanger fin set inside has the flow channel for liquids that supplies transformer oil to pass through, and flow channel for liquids is arranged in parallel, the flow channel for liquids two ends respectively with advance fluid flow tube and go out the fluid flow tube internal communication; The heat exchanger fin outer setting has the gas flow that is arranged in parallel, and heat exchanger fin is parallel to into fluid flow tube and goes out between the fluid flow tube.
2. a kind of transformer board fin heat exchanger according to claim 1 is characterized in that said heat exchanger fin comprises substrate and rectangular fin; Said substrate is welded by two blocks of identical punching press steel plates; Between the punching press steel plate, form said flow channel for liquids, outer surface of substrate is established and is coated with aluminum cladding, and rectangular fin is arranged at the substrate both sides; Said rectangular fin is stamped to form by aluminium sheet, on rectangular fin, forms the gas flow that is arranged in parallel.
3. a kind of transformer board fin heat exchanger according to claim 1 and 2 is characterized in that said gas flow is parallel with the flow channel for liquids direction.
4. a kind of transformer board fin heat exchanger according to claim 1 and 2 is characterized in that said gas flow is vertical with the flow channel for liquids direction.
5. a kind of transformer board fin heat exchanger according to claim 1 is characterized in that, said heat exchanger fin is connected fixing by stiffener.
6. the manufacturing approach of a transformer board fin heat exchanger is characterized in that, may further comprise the steps,
1) adopt Sheet Metal Forming Technology to make punching press steel plate and rectangular fin;
2) clean the punching press steel plate, at punching press steel plate surface-coated aluminum cladding;
3) adopt two-sided roll welding technology with two stamped steel panel edges welded seals;
4) for strengthening the compressive strength of liquid in the substrate internal liquid runner, it is fixing that the groove in the middle of the substrate adopts spot welding to strengthen;
5) residue, oxide and the oil stain on cleaning base plate and the fin;
6) adopt spot-welding technology, be fixed on substrate surface after rectangular fin is arranged in parallel, form heat exchanger fin;
7) adopt furnace brazing to handle rectangular fin that fixes and substrate, reduce the contact heat resistance between rectangular fin and the substrate, enhance heat transfer improves the preservative treatment ability simultaneously;
8) one group of heat exchanger fin is connected by stiffener fixing, with the heat exchanger fin two ends respectively with advance fluid flow tube and go out fluid flow tube and is connected, overall package is carried out pressure test, finally completion.
CN 201110151859 2011-06-08 2011-06-08 Plate-fin heat exchanger of transformer and manufacturing method for plate-fin heat exchanger Active CN102360743B (en)

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CN 201110151859 CN102360743B (en) 2011-06-08 2011-06-08 Plate-fin heat exchanger of transformer and manufacturing method for plate-fin heat exchanger

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Application Number Priority Date Filing Date Title
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CN102360743B CN102360743B (en) 2013-04-03

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102629290A (en) * 2012-03-13 2012-08-08 西安交通大学 Optimization design method of multiple flow fluid channel arrangement for plate-fin heat exchanger
CN106895696A (en) * 2017-03-12 2017-06-27 深圳市上羽科技有限公司 A kind of special plate type heat exchanger of dryer
CN106949772A (en) * 2017-04-20 2017-07-14 沈阳亚特电器制造有限公司 A kind of fin type heat radiator for transformer production technology
WO2018161614A1 (en) * 2017-03-06 2018-09-13 常熟市友邦散热器有限责任公司 Finned radiator with special-shaped oil channel
CN111678371A (en) * 2020-06-19 2020-09-18 贵州凯宏汇达冷却系统有限公司 Heat exchanger and liquid cooling source equipment based on same
CN112658628A (en) * 2020-12-17 2021-04-16 常州爱克普换热器有限公司 Manufacturing process of plate-fin heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04103108A (en) * 1990-08-23 1992-04-06 Toshiba Corp Radiation panel
CN2580573Y (en) * 2002-10-30 2003-10-15 王立新 Sheet type heat radiator for transformer
CN2731656Y (en) * 2004-09-28 2005-10-05 袁炳林 Forced oil-circulating air cooling device for transformer
CN101368800A (en) * 2008-09-24 2009-02-18 东华大学 Axial fin flat pipe heat exchanger and manufacturing method thereof
CN202102836U (en) * 2011-06-08 2012-01-04 上海东润换热设备制造有限公司 Plate-fin type heat exchanger of transformer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04103108A (en) * 1990-08-23 1992-04-06 Toshiba Corp Radiation panel
CN2580573Y (en) * 2002-10-30 2003-10-15 王立新 Sheet type heat radiator for transformer
CN2731656Y (en) * 2004-09-28 2005-10-05 袁炳林 Forced oil-circulating air cooling device for transformer
CN101368800A (en) * 2008-09-24 2009-02-18 东华大学 Axial fin flat pipe heat exchanger and manufacturing method thereof
CN202102836U (en) * 2011-06-08 2012-01-04 上海东润换热设备制造有限公司 Plate-fin type heat exchanger of transformer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102629290A (en) * 2012-03-13 2012-08-08 西安交通大学 Optimization design method of multiple flow fluid channel arrangement for plate-fin heat exchanger
WO2018161614A1 (en) * 2017-03-06 2018-09-13 常熟市友邦散热器有限责任公司 Finned radiator with special-shaped oil channel
CN106895696A (en) * 2017-03-12 2017-06-27 深圳市上羽科技有限公司 A kind of special plate type heat exchanger of dryer
CN106949772A (en) * 2017-04-20 2017-07-14 沈阳亚特电器制造有限公司 A kind of fin type heat radiator for transformer production technology
CN111678371A (en) * 2020-06-19 2020-09-18 贵州凯宏汇达冷却系统有限公司 Heat exchanger and liquid cooling source equipment based on same
CN111678371B (en) * 2020-06-19 2022-02-18 贵州凯宏汇达冷却系统有限公司 Heat exchanger and liquid cooling source equipment based on same
CN112658628A (en) * 2020-12-17 2021-04-16 常州爱克普换热器有限公司 Manufacturing process of plate-fin heat exchanger
CN112658628B (en) * 2020-12-17 2022-04-12 常州爱克普换热器有限公司 Manufacturing process of plate-fin heat exchanger

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Legal Events

Date Code Title Description
CP03 Change of name, title or address

Address after: No.75 Rongfa Road, Ganxiang, LvXiang Town, Jinshan District, Shanghai, 201517

Patentee after: Shanghai Dongrun heat exchange equipment Co.,Ltd.

Address before: 201518 Shanghai city Jinshan District Lu Zhen Gan Xiang Rong FA Lu No. 75

Patentee before: SHANGHAI DONGRUN HEAT-EXCHANGE EQUIPMENT MANUFACTURING Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A kind of manufacturing method of transformer plate-fin heat exchanger

Effective date of registration: 20220819

Granted publication date: 20130403

Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch

Pledgor: Shanghai Dongrun heat exchange equipment Co.,Ltd.

Registration number: Y2022310000189