CN104457381A - Inclined wavy corrugated plate - Google Patents
Inclined wavy corrugated plate Download PDFInfo
- Publication number
- CN104457381A CN104457381A CN201410857236.7A CN201410857236A CN104457381A CN 104457381 A CN104457381 A CN 104457381A CN 201410857236 A CN201410857236 A CN 201410857236A CN 104457381 A CN104457381 A CN 104457381A
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- China
- Prior art keywords
- ripple
- plate body
- heat transfer
- heat
- corrugated plating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses an inclined wavy corrugated plate which comprises a first plate body and a second plate body. The inclined wavy corrugated plate is characterized in that first inclined upward corrugations are arranged on the first plate body, and second inclined upward corrugations are arranged on the second plate body. Compared with a traditional linear type corrugated plate, the contact area between the inclined wavy corrugated plate and fluid is increased, the heat transfer performance is met, and meanwhile the heat transfer area can be partially reduced, so that the purposes of saving materials and reducing the air preheater cost are achieved. In addition, the heat transfer element heat exchange efficiency is improved, the outlet fluid temperature of an air preheater is reduced, and the purpose of cost decreasing and benefit increasing and the purpose of energy conservation and emission reduction are achieved.
Description
Technical field
The present invention relates to a kind of heat transfer element for air preheater and flue gas heater, be specifically related to a kind of oblique wave wave type corrugated plating, belong to technical field of heat exchangers.
Background technology
Rotary type heat exchanger is the core component of rotary regenerative air preheater and flue gas heater.Its Main Function is that absorption boiler leading portion discharges used heat, comes heating boiler burning and coal dust conveying air, or heats the cooled flue gas of desulphurization system again.Its heat exchange element is that surface area reaches tens thousand of steel sheet to hundreds thousand of square metres, and this thin plate corrugated surface of thin plate that steel sheet surface rolling goes out bellows-shaped absorbs the heat of flue gas.These heat transfer element sheets are by the machine-shaping of rolling streamline, load in heat transfer element bag according to installation frame size, be placed in preheater rotor, when equipment runs, with rotor turns, sucking heat in fume side (high temperature side), the release heat when forwarding air side to, completing the object that heat transmits.
In the prior art, the heat transfer element for air preheater is divided into NF series usually, CU is serial, DU is serial and DN is serial, and these heat transfer elements are all made up of much paired steel sheet.Compositions all in these series is all partnered by upper and lower two panels, upper slice we be referred to as location-plate, bottom sheet be referred to as corrugated plating, such as: DU series heat transfer element have DU waveform and DU3 waveform, therebetween structure is identical, and its difference is that the height of ripple is different.As shown in Figure 1-2, it is made up of the corrugated plating of two pieces of folds, and corrugated plating 1, with oblique straight ripple 1 and smooth straight channel groove 4, corrugated plating 2 only has tiltedly straight ripple 25.Tiltedly straight ripple 1 is with tiltedly straight ripple 25 direction is consistent.Corrugated plating 1 is through twice roll forming, is first rolled into tiltedly straight ripple 1 by a pair rolling roll, and then rolls out straight channel groove 4 with another to rolling roll, i.e. ash discharge channel slot.Oblique ripple due to these heat transfer elements is all skew lines type, and when heat-exchange fluid passes through, the few resistance of contact surface is little, therefore can have lost the heat of a part of heat-exchange fluid.
Summary of the invention
Technical problem to be solved by this invention is to provide the heat transfer element that a kind of corrugated plating than existing skew lines type can absorb flue gas heat more.
In order to solve the problem, the technical solution adopted in the present invention there is provided a kind of oblique wave wave type corrugated plating, comprises plate body one and plate body two, it is characterized in that, described plate body one is provided with the ripple one tilted upward; Plate body two is provided with the ripple two tilted upward.
Preferably, the angle of inclination of described ripple one, ripple two is relative plate face tilt 50 ~ 65 °, and ripple be undaform upwards; Ripple one, ripple two are one-period at interval of 100-200mm, and fluctuate ± 2 ~ 8mm up and down.
Preferably, described ripple one, ripple two are circular arc.
Preferably, the ripple one on described plate body one is divided into uniform multiple corrugated regions, is provided with straight channel groove between adjacent two corrugated regions.
Compared with prior art, beneficial effect of the present invention is:
1, adopt undaform corrugated plating, increase than the corrugated plating of traditional line type and the contact area of fluid, part heat-transfer surface can be reduced while meeting heat exchange property, reach saving material, reduce the object of air preheater cost;
2, enhanced heat transfer component heat exchange efficiency, reduces the exit fluid temperature of air preheater, reaches cost efficiency, the object of energy-saving and emission-reduction;
The technology of 3, traditional manufacture skew lines type corrugated plating component structure, due to the backwardness of manufacturing equipment and manufacturing technology, be difficult to realize to this oblique wave wave type corrugated plating component structure of manufacture, now along with the progress of science and technology, the lifting in big strides of equipment manufacturing equipment and technology, numerical control machining center, three-shaft linkage, four-axle linked etc. sophisticated equipment and technology make the oblique wave wave type corrugated plating component structure manufacturing this complexity be achieved.
Accompanying drawing explanation
Fig. 1 is existing DU series heat conduction element structure schematic diagram;
Fig. 2 is that existing DU series heat transfer element combines ripple schematic diagram for a pair;
Fig. 3 is the structural representation of oblique wave wave type corrugated plating provided by the invention;
Fig. 4 is the schematic diagram after plate body one combines with plate body two;
Fig. 5 is the front view of the planar structure of ripple one (two);
Fig. 6 is the top view of Fig. 5.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
As shown in Figure 3, be a kind of heat transmission element structure for air preheater provided by the invention---the structural representation of oblique wave wave type corrugated plating, after comprising plate body 1 and plate body 27, two pieces of corrugated plating assemblings, its structural diagrams intention as shown in Figure 4.Plate body 1 is provided with ripple 1, and ripple 1 is divided into multiple uniform corrugated regions, is provided with straight channel groove 9 between adjacent two corrugated regions.Plate body 27 is provided with ripple 2 10.Wherein, ripple 1 and ripple 2 10 identical set on direction.The longitudinal section of straight channel groove 9 is the curve with a crest and a trough.
On ripple 1 and ripple 2 10, be distributed with shallow undaform ripple, shallow waveform ripple be with 60 ° of long diagonals for X-axis amplitude for the 7mm cycle is the sine wave of 200.Its section configuration as shown in Figure 5, is R2.5mm in isosceles triangle bottom roundings α, and top fillet β is R1.5mm, and its degree of depth h is 8mm.Base l is 15mm.
The present invention smooth oblique shallow undaform corrugated design is become along with the base center line that angularly γ to be the long diagonal of 60 ° be this ripple is wide, with center line be benchmark up and down ± 7mm fluctuation, adjacent 200mm is one-period T distribution ripple 1, ripple 2 10, at heat-exchange fluid by producing certain resistance during wave channel, affect the speed that heat-exchange fluid passes through.As compared to existing tiltedly straight type ripple 3,5, shallow waveform ripple 10 considerably increases the contact area of corrugated plating and heat-exchange fluid, the heat of heat-exchange fluid can be absorbed more, thus improve heat transfer element efficiency, reduce part heating surface, reach the object of saving material.
Claims (4)
1. an oblique wave wave type corrugated plating, comprises plate body one (6) and plate body two (7), it is characterized in that, described plate body one (6) is provided with the ripple one (8) tilted upward; Plate body two (7) is provided with the ripple two (10) tilted upward.
2. oblique wave wave type corrugated plating as claimed in claim 1, it is characterized in that, the angle of inclination of described ripple one (8), ripple two (10) is relative plate face tilt 50 ~ 65 °, and ripple be undaform upwards; Ripple one (8), ripple two (10) are one-period at interval of 100-200mm, and fluctuate ± 2 ~ 8mm up and down.
3. oblique wave wave type corrugated plating as claimed in claim 1, it is characterized in that, described ripple one (8), ripple two (10) are circular arc.
4. oblique wave wave type corrugated plating as claimed in claim 1, it is characterized in that, the ripple one (8) on described plate body one (6) is divided into uniform multiple corrugated regions, is provided with straight channel groove (9) between adjacent two corrugated regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410857236.7A CN104457381B (en) | 2014-12-30 | 2014-12-30 | A kind of oblique wave wave type corrugated plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410857236.7A CN104457381B (en) | 2014-12-30 | 2014-12-30 | A kind of oblique wave wave type corrugated plating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457381A true CN104457381A (en) | 2015-03-25 |
| CN104457381B CN104457381B (en) | 2017-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410857236.7A Active CN104457381B (en) | 2014-12-30 | 2014-12-30 | A kind of oblique wave wave type corrugated plating |
Country Status (1)
| Country | Link |
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| CN (1) | CN104457381B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396058A (en) * | 1981-11-23 | 1983-08-02 | The Air Preheater Company | Heat transfer element assembly |
| CN1238833A (en) * | 1996-11-22 | 1999-12-15 | Abb·空气预热器有限公司 | Air preheater heat transfer surface |
| CN1330763A (en) * | 1998-12-16 | 2002-01-09 | 阿尔斯托姆电力公司 | Heat transfer element assembly |
| CN201348461Y (en) * | 2008-12-17 | 2009-11-18 | 哈尔滨锅炉厂有限责任公司 | Heat transfer element plate profile of rotary air preheater for boilers |
| CN201402089Y (en) * | 2009-04-21 | 2010-02-10 | 东方锅炉（集团）股份有限公司 | High efficient heat exchange element plate of utility boiler |
| CN102374551A (en) * | 2011-12-12 | 2012-03-14 | 上海锅炉厂有限公司 | Heat transmission element structure for air preheater |
| CN103717992A (en) * | 2011-06-01 | 2014-04-09 | 阿尔斯通技术有限公司 | Heating element undulation patterns |
-
2014
- 2014-12-30 CN CN201410857236.7A patent/CN104457381B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396058A (en) * | 1981-11-23 | 1983-08-02 | The Air Preheater Company | Heat transfer element assembly |
| CN1238833A (en) * | 1996-11-22 | 1999-12-15 | Abb·空气预热器有限公司 | Air preheater heat transfer surface |
| CN1330763A (en) * | 1998-12-16 | 2002-01-09 | 阿尔斯托姆电力公司 | Heat transfer element assembly |
| CN201348461Y (en) * | 2008-12-17 | 2009-11-18 | 哈尔滨锅炉厂有限责任公司 | Heat transfer element plate profile of rotary air preheater for boilers |
| CN201402089Y (en) * | 2009-04-21 | 2010-02-10 | 东方锅炉（集团）股份有限公司 | High efficient heat exchange element plate of utility boiler |
| CN103717992A (en) * | 2011-06-01 | 2014-04-09 | 阿尔斯通技术有限公司 | Heating element undulation patterns |
| CN102374551A (en) * | 2011-12-12 | 2012-03-14 | 上海锅炉厂有限公司 | Heat transmission element structure for air preheater |
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| Publication number | Publication date |
|---|---|
| CN104457381B (en) | 2017-03-15 |
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