CN104696983A - Self-supporting wide gap heat exchanging element - Google Patents
Self-supporting wide gap heat exchanging element Download PDFInfo
- Publication number
- CN104696983A CN104696983A CN201510107870.3A CN201510107870A CN104696983A CN 104696983 A CN104696983 A CN 104696983A CN 201510107870 A CN201510107870 A CN 201510107870A CN 104696983 A CN104696983 A CN 104696983A
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- plate
- ripple
- self
- convex
- heat exchange
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- 239000007789 gas Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 6
- 229910000870 Weathering steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003546 flue gas Substances 0.000 abstract description 13
- 239000000428 dust Substances 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 238000013517 stratification Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention is applicable to the field of air cold medium pre-heating and particularly relates to a self-supporting wide gap heat exchanging element. The self-supporting wide gap heat exchanging element comprises a plurality of plate pairs which are overlapped layer by layer; each plat pair comprises upper and lower plate sheets which are arranged oppositely; a plurality of rows of convex ripples and concave ripples are distributed on the upper surfaces of the plate sheets along the same axis direction; the convex ripples and concave ripples are obtained by upwards and downwards pressing and molding the plate sheets; the convex ripples and concave ripples are distributed at intervals; the positions of the convex ripples and concave ripples on the upper plate sheets in the plate pairs correspond to the positions of the convex ripples and concave ripples on the lower plate sheets in the plate pairs; one group of opposite edges of the plate sheets are upwards folded and are transited into planes; the other group of opposite edges of the plate sheets are downwards folded and are transited into planes; the two adjacent folding edges in each plate pair are welded to form an air channel; the two adjacent plate pairs are symmetrical up and down, and the adjacent folding edges between the two adjacent plate pairs are welded to form a flue gas channel. The self-supporting wide gap heat exchanging element has the advantages that a wide gap channel can be combined, dirt and dust are not easy to deposit, the resistance fall also can be reduced and the heat exchanging efficiency is sufficiently improved.
Description
Technical field
The present invention relates to a kind of self-supporting broad gap heat exchange element, be applicable to air refrigerant preheating field.
Background technology
The high-temperature flue gas that air refrigerant preheating device is a kind of converter to reburner, pyrolysis furnace, heating furnace, steel and iron industry, waste gas catalytic incineration stove, hot-blast stove etc. produce carries out the equipment of heat exchange with burning cold air used, its effect is, high-temperature flue gas is cooled, reduce noxious gas emission, improve combustion air temperature, reducing energy resource consumption, is the energy-saving and environmental protection equipment that the industries such as a kind of oil refining, chemical industry, iron and steel, metallurgy, power industry often use.
For improving the fluency of flue gas and air, avoid the problem of the easy dust stratification of passage, fouling corrosion, at present, existing air refrigerant preheating device element adopts broad gap combining structure usually, such as No. CN201382436Y, Chinese patent " plate air preheater " welds multiple grid often opening on heat exchange flat board, and by certain connected mode, and form broad gap passage.The heat exchange element of this structure exposes following shortcoming in making with in using:
1, because each flat board needing the multiple grid of spot welding, and grid needs bending, and not only labour intensity is very large, and positioning precision is also difficult to control, and just must can guarantee precision by special tooling, equipment investment is larger.
2, the weld seam because plate is formed is more, and welding deformation is difficult to grasp, and meanwhile, weld seam is many, and the welding stress caused is large, easily stress corrosion cracking occurs, there is larger quality risk in specific environment.
3, the passage that formed of lath bending grid, comparatively large in fluid direction of advance resistance drop, the not easily circulation of flue gas body, cause the power of fan of system requirements large, power consumption uprises.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of self-supporting broad gap heat exchange element being applicable to air refrigerant preheating device, broad gap passage, less scaling dust stratification can be combined into, resistance drop can be reduced again, fully improve heat exchange efficiency.
Self-supporting broad gap heat exchange element of the present invention, comprise the some plates pair be layering, each plate is to comprising arrange in opposite directions upper, lower two plates, the upper surface of plate is dispersed with the convex ripple of some rows along same axis direction, recessed ripple, convex ripple, recessed ripple is upwards respectively, downwards plate is carried out to die mould obtains, convex ripple, recessed ripple is spaced apart, the recessed ripple of plate centering upper sheet space, convex ripple respectively with the convex ripple of lower sheet space, recessed ripple position is corresponding, one group of opposite side of plate is upward folded and transition is plane, other one group of opposite side is to lower hem and transition is plane, each plate centering two adjacent folds welding forms air duct, adjacent two plates are to upper, lower symmetry and therebetween adjacent folds welding formed exhaust gases passes.
The present invention, by the corrugated form of above-mentioned uniqueness, making interchannel without the need to adding any auxiliary component, can be combined into both sides broad gap passage, achieving self-supporting, considerably reduce manufacturing cost, also improve operating efficiency simultaneously.
The present invention achieves both sides broad gap passage by the corrugated form of above-mentioned plate, achieve very little resistance drop, through experimental test, the resistance that prior art plate forms passage reduces to 3000 ~ 4000 handkerchiefs, and in the present invention, the resistance drop of plate formation passage is only 1000 handkerchiefs.Thus make:
One, resistance drop reduces, and in turn ensure that heat exchange efficiency.
Two, this plate combining form makes flue gas and air sides all form broad gap passage, improve the fluency of flue gas and air, the power of blower fan can be reduced, namely just can meet air refrigerant preheating device heat transfer requirements with less blower fan, sufficiently lower energy resource consumption.
Three, not easily dust stratification in heat exchanger channels, even if dust stratification also can realize on-line cleaning easily, maintainability is very high, not only reduces maintenance cost, and extends the service life of equipment, makes preheater design more economical, more practical.
Described convex ripple and the waveform of recessed ripple can be the various shapes such as circle or Long Circle, and this is designed to curved design, can be combined to form the gas flow meeting operating mode instructions for use by above-mentioned curved design.
But any protrusion shape all can produce resistance to a certain extent, air is flowed slack-off, based on aerodynamic principle, the preferred water-drop-shaped of waveform of convex ripple and recessed ripple, proved by a large amount of research experiment, drop shape is best, and that is gas flows at this mild body surface, produces minimum air drag.In the present invention, the convex ripple of water-drop-shaped and the axis of recessed ripple parallel with the air-flow fluid direction of motion, the ripple of water-drop-shaped has one and holds greatly and a small end, described large end is near smoke inlet or air intake, described small end is near exhanst gas outlet or air outlet slit, in same plate, the water-drop-shaped arrangement separately of convex ripple or recessed ripple is identical, but the water-drop-shaped of convex ripple is mutually vertical with the water-drop-shaped in recessed ripple.Like this, when flue gas or air fluid carry out heat exchange by this cross section, the resistance of air-flow fluid reduces, and improves the thermal conversion efficiency of preheater.
Described plate material is stainless steel or weathering steel, and sheet is 0.8 ~ 1.5mm.
Described each plate centering plate overlaps with another plate after its minor axis rotates 180 °, adopts identical plate in such heat exchange element, is convenient to making, die mould, saves production cost.
Described convex ripple, the crest of recessed ripple are plane, import and export, make it not easily to close to reinforce runner.
The beneficial effect that the present invention is compared with prior art had is:
1, instant invention overcomes the shortcoming of original fat pipe air preheater, decrease the investment of equipment, simplify manufacture craft, eliminate or reduce the impact of welding stress heat exchanging plate, improve the reliability of heat exchange plate, there is the advantage that manufacture craft is simple, service life extends.
2, the present invention is ripple layout and the fat pipe combining form of water-drop-shaped by adopting cross section on plate, rationally can reduce the resistance of flue gas and air, take into account again heat transfer efficiency, thus reduced power and the equipment manufacturing cost of blower fan, improve the economy of air refrigerant preheating device design.
3, flue gas of the present invention and air sides all form broad gap passage, to make in heat exchanger channels not easily dust stratification, even if dust stratification also can realize on-line cleaning easily, maintainability is very high, not only reduce maintenance cost, and extend the service life of equipment, make preheater design more economical, more practical.
4, the corrugated form of uniqueness of the present invention, making interchannel without the need to adding any auxiliary component, can be combined into both sides broad gap passage, considerably reducing manufacturing cost, also improve operating efficiency simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is the B direction view of Fig. 1.
In figure: 1, plate; 2, convex ripple; 3, recessed ripple; 4, air duct; 5, plate pair; 6, exhaust gases passes.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figures 1 to 3, self-supporting broad gap heat exchange element of the present invention comprises some plates of being layering to 5, each plate comprises to 5 arrange in opposite directions upper, lower two plates 1, the upper surface of plate 1 is dispersed with the convex ripple 2 of some rows along same axis direction, recessed ripple 3, convex ripple 2, recessed ripple 3 is upwards respectively, downwards plate is carried out to die mould obtains, convex ripple 2, recessed ripple 3 is spaced apart, plate is to the recessed ripple of upper sheet space in 5, convex ripple respectively with the convex ripple of lower sheet space, recessed ripple position is corresponding, one group of opposite side of plate 1 is upward folded and transition is plane, other one group of opposite side is to lower hem and transition is plane, each plate forms air ducts 4 to two adjacent folds welding in 5, adjacent two plates are on 5, lower symmetry and therebetween adjacent folds welding formed exhaust gases passes 6.Wherein, plate 1 material is stainless steel or weathering steel, and plate 1 thickness is 0.8 ~ 1.5mm.
The present invention, by the corrugated form of above-mentioned uniqueness, making interchannel without the need to adding any auxiliary component, can be combined into both sides broad gap passage, achieving self-supporting, considerably reduce manufacturing cost, also improve operating efficiency simultaneously.
Flue gas of the present invention and air sides all form broad gap passage, to make in heat exchanger channels not easily dust stratification, even if dust stratification also can realize on-line cleaning easily, maintainability is very high, not only reduce maintenance cost, and extend the service life of equipment, make preheater design more economical, more practical.
Above-mentioned convex ripple 2 and the waveform of recessed ripple 3 can be the various shapes such as circle or Long Circle, and this is designed to curved design, can be combined to form the gas flow meeting operating mode instructions for use by above-mentioned curved design.
But any protrusion shape all can produce resistance to a certain extent, air is flowed slack-off, based on aerodynamic principle, the preferred water-drop-shaped of waveform of convex ripple 2 and recessed ripple 3, proved by a large amount of research experiment, drop shape is best, and that is gas flows at this mild body surface, the minimum air drag of generation.In the present invention, the convex ripple 2 of water-drop-shaped and the axis of recessed ripple 3 parallel with the air-flow fluid direction of motion, the ripple of water-drop-shaped has one and holds greatly and a small end, described large end is near smoke inlet or air intake, described small end is near exhanst gas outlet or air outlet slit, in same plate 1, convex ripple 2 or the respective water-drop-shaped arrangement of recessed ripple 3 identical, but the water-drop-shaped of convex ripple 2 is mutually vertical with the water-drop-shaped in recessed ripple 3.Like this, when flue gas or air fluid carry out heat exchange by this cross section, the resistance of air-flow fluid reduces, and improves the thermal conversion efficiency of preheater.In the present embodiment, each plate overlaps with another plate after its minor axis rotates 180 ° to a plate in 5, adopts identical plate in such heat exchange element, is convenient to make, die mould, saves production cost; The crest of convex ripple 2, recessed ripple 3 is plane, imports and exports, make it not easily to close to reinforce runner.
In sum, the present invention makes exhaust gases passes 6 and air duct 4 be broad gap passage by the corrugated form of above-mentioned plate 1, achieve very little resistance drop, through experimental test, the resistance that prior art plate 1 forms passage reduces to 3000 ~ 4000 handkerchiefs, and the resistance drop that in the present invention, plate 1 forms passage is only 1000 handkerchiefs, has both reduced resistance drop, in turn ensure that heat exchange efficiency.Because exhaust gases passes 6 and air duct 4 are broad gap passage, therefore, it is possible to improve the fluency of flue gas and air, not easily dust stratification in heat exchanger channels, even if dust stratification, also can meet air refrigerant preheating device heat transfer requirements with less blower fan, sufficiently lower energy resource consumption, also can realize on-line cleaning easily, maintainability is very high, not only reduces maintenance cost, and extend the service life of equipment, make preheater design more economical, more practical.
Claims (8)
1. a self-supporting broad gap heat exchange element, comprise some plates of being layering to (5), it is characterized in that: each plate comprises to (5) arrange in opposite directions upper, lower two plates (1), the upper surface of plate (1) is dispersed with the convex ripple of some rows (2) along same axis direction, recessed ripple (3), convex ripple (2), recessed ripple (3) is upwards respectively, downwards plate is carried out to die mould obtains, convex ripple (2), recessed ripple (3) is spaced apart, plate is to the recessed ripple of upper sheet space in (5), convex ripple respectively with the convex ripple of lower sheet space, recessed ripple position is corresponding, one group of opposite side of plate (1) is upward folded and transition is plane, other one group of opposite side is to lower hem and transition is plane, each plate forms air duct (4) to two adjacent folds welding in (5), adjacent two plates are on (5), lower symmetry and therebetween adjacent folds welding formed exhaust gases passes (6).
2. self-supporting broad gap heat exchange element according to claim 1, is characterized in that: described convex ripple (2) and the waveform of recessed ripple (3) are water-drop-shaped.
3. self-supporting broad gap heat exchange element according to claim 2, it is characterized in that: the convex ripple (2) of described water-drop-shaped and the axis of recessed ripple (3) parallel with the air-flow fluid direction of motion, the ripple of water-drop-shaped has one and holds greatly and a small end, described large end is near smoke inlet or air intake, and described small end is near exhanst gas outlet or air outlet slit.
4. self-supporting broad gap heat exchange element according to claim 1, is characterized in that: described convex ripple (2) and the waveform of recessed ripple (3) are for circular.
5. self-supporting broad gap heat exchange element according to claim 1, is characterized in that: described plate (1) material is stainless steel or weathering steel.
6. self-supporting broad gap heat exchange element according to claim 1, is characterized in that: described plate (1) thickness is 0.8 ~ 1.5mm.
7., according to the arbitrary described self-supporting broad gap heat exchange element of claim 1 ~ 6, it is characterized in that: described each plate overlaps with another plate after its minor axis rotates 180 ° to a plate in (5).
8., according to the arbitrary described self-supporting broad gap heat exchange element of claim 1 ~ 6, it is characterized in that: the crest of described convex ripple (2), recessed ripple (3) is plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107870.3A CN104696983B (en) | 2015-03-12 | 2015-03-12 | Self-supporting wide gap heat exchanging element |
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|---|---|---|---|
| CN201510107870.3A CN104696983B (en) | 2015-03-12 | 2015-03-12 | Self-supporting wide gap heat exchanging element |
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| CN104696983A true CN104696983A (en) | 2015-06-10 |
| CN104696983B CN104696983B (en) | 2017-05-17 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964587A (en) * | 2015-06-25 | 2015-10-07 | 咀香园健康食品（中山）有限公司 | Dot-matrix gas-liquid heat exchanger and preparation method thereof |
| CN105091637A (en) * | 2015-06-25 | 2015-11-25 | 咀香园健康食品（中山）有限公司 | Gas-liquid heat exchange device |
| CN106440915A (en) * | 2016-08-31 | 2017-02-22 | 赵弘毅 | Heat exchange plate piece |
| WO2017133377A1 (en) * | 2016-02-04 | 2017-08-10 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat-exchanging plate, and plate heat exchanger using same |
| CN107514649A (en) * | 2017-07-27 | 2017-12-26 | 同济大学 | Board-like Wind Volume air preheater |
| CN108489319A (en) * | 2018-05-21 | 2018-09-04 | 南京宜热纵联节能科技有限公司 | A kind of gas heat exchanger plate convenient for deashing |
| CN110332559A (en) * | 2019-07-24 | 2019-10-15 | 山东旺泰科技有限公司 | Flue gas heat-exchange unit |
| CN110434464A (en) * | 2019-08-26 | 2019-11-12 | 山东旺泰科技有限公司 | The method for laser welding and tooling of heat exchange original part |
| CN111201414A (en) * | 2017-10-13 | 2020-05-26 | 沃尔沃卡车集团 | Heat exchanger and additive manufacturing method for manufacturing heat exchanger |
| CN114234704A (en) * | 2021-12-14 | 2022-03-25 | 中国科学院工程热物理研究所 | Wing-shaped structure, heat exchange plate, heat exchanger and heat exchange method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105091637A (en) * | 2015-06-25 | 2015-11-25 | 咀香园健康食品（中山）有限公司 | Gas-liquid heat exchange device |
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| CN104964587B (en) * | 2015-06-25 | 2017-10-13 | 咀香园健康食品（中山）有限公司 | Dot matrix gas-liquid heat exchanger and preparation method thereof |
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| WO2017133377A1 (en) * | 2016-02-04 | 2017-08-10 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat-exchanging plate, and plate heat exchanger using same |
| US10876801B2 (en) | 2016-02-04 | 2020-12-29 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Heat-exchanging plate, and plate heat exchanger using same |
| CN106440915B (en) * | 2016-08-31 | 2018-09-07 | 赵弘毅 | A kind of heat exchange plate |
| CN106440915A (en) * | 2016-08-31 | 2017-02-22 | 赵弘毅 | Heat exchange plate piece |
| CN107514649A (en) * | 2017-07-27 | 2017-12-26 | 同济大学 | Board-like Wind Volume air preheater |
| CN111201414A (en) * | 2017-10-13 | 2020-05-26 | 沃尔沃卡车集团 | Heat exchanger and additive manufacturing method for manufacturing heat exchanger |
| CN111201414B (en) * | 2017-10-13 | 2022-03-22 | 沃尔沃卡车集团 | Heat exchanger and additive manufacturing method for manufacturing heat exchanger |
| CN108489319A (en) * | 2018-05-21 | 2018-09-04 | 南京宜热纵联节能科技有限公司 | A kind of gas heat exchanger plate convenient for deashing |
| CN110332559A (en) * | 2019-07-24 | 2019-10-15 | 山东旺泰科技有限公司 | Flue gas heat-exchange unit |
| CN110434464A (en) * | 2019-08-26 | 2019-11-12 | 山东旺泰科技有限公司 | The method for laser welding and tooling of heat exchange original part |
| CN114234704A (en) * | 2021-12-14 | 2022-03-25 | 中国科学院工程热物理研究所 | Wing-shaped structure, heat exchange plate, heat exchanger and heat exchange method |
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| Publication number | Publication date |
|---|---|
| CN104696983B (en) | 2017-05-17 |
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Address after: 255130 Zibo Economic Development Zone, Shandong City, north of Qixing Road, Zichuan Applicant after: SHANDONG WINTECH TECHNOLOGY CO.,LTD. Address before: 255130 Zibo Economic Development Zone, Shandong City, north of Qixing Road, Zichuan Applicant before: SHANDONG WINTECH MACHINERY Co.,Ltd. |
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Denomination of invention: Self-supporting wide gap heat exchanging element Effective date of registration: 20200217 Granted publication date: 20170517 Pledgee: Industrial and Commercial Bank of China Limited Zibo Zichuan sub branch Pledgor: SHANDONG WINTECH TECHNOLOGY CO.,LTD. Registration number: Y2020980000256 |
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Denomination of invention: Self supporting wide gap heat exchanger Effective date of registration: 20210329 Granted publication date: 20170517 Pledgee: Industrial and Commercial Bank of China Limited Zibo Zichuan sub branch Pledgor: SHANDONG WINTECH TECHNOLOGY Co.,Ltd. Registration number: Y2021980002206 |
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