CN204513444U - Self-supporting broad gap heat exchange element - Google Patents
Self-supporting broad gap heat exchange element Download PDFInfo
- Publication number
- CN204513444U CN204513444U CN201520139183.5U CN201520139183U CN204513444U CN 204513444 U CN204513444 U CN 204513444U CN 201520139183 U CN201520139183 U CN 201520139183U CN 204513444 U CN204513444 U CN 204513444U
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- ripple
- plate
- heat exchange
- recessed
- convex
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model is applicable to air refrigerant preheating field, be specifically related to a kind of self-supporting broad gap heat exchange element, 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.Broad gap passage, less scaling dust stratification can be combined into by the utility model, resistance drop can be reduced again, fully improve heat exchange efficiency.
Description
Technical field
The utility model relates to a kind of self-supporting broad gap heat exchange element, is 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.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model 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 described in the utility model, 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 utility model, 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 utility model 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 utility model, 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 utility model, 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 utility model is compared with prior art had is:
1, the utility model 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 utility model 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, the utility model flue gas 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 the utility model uniqueness, 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 utility model;
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, embodiment of the present utility model is described further:
As shown in Figures 1 to 3, self-supporting broad gap heat exchange element described in the utility model 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 utility model, 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 utility model flue gas 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 utility model, 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 utility model 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 utility model, 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 |
|---|---|---|---|
| CN201520139183.5U CN204513444U (en) | 2015-03-12 | 2015-03-12 | Self-supporting broad gap heat exchange element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139183.5U CN204513444U (en) | 2015-03-12 | 2015-03-12 | Self-supporting broad gap heat exchange element |
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| Publication Number | Publication Date |
|---|---|
| CN204513444U true CN204513444U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520139183.5U Withdrawn - After Issue CN204513444U (en) | 2015-03-12 | 2015-03-12 | Self-supporting broad gap heat exchange element |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696983A (en) * | 2015-03-12 | 2015-06-10 | 山东旺泰机械科技有限公司 | Self-supporting wide gap heat exchanging element |
| CN106440884A (en) * | 2016-07-29 | 2017-02-22 | 非凡鸿盛科技发展（深圳）有限公司 | Heat exchanger and heat exchange plate thereof |
| CN106556275A (en) * | 2016-12-01 | 2017-04-05 | 浙江大学 | A kind of interstage cooler and its cascade EDFA tower tray |
| CN106731493A (en) * | 2016-12-01 | 2017-05-31 | 浙江大学 | A kind of square filler tower for smoke carbon dioxide capture |
| CN110469868A (en) * | 2019-09-11 | 2019-11-19 | 南京同诚节能环保装备研究院有限公司 | A kind of Novel plate type air preheater |
-
2015
- 2015-03-12 CN CN201520139183.5U patent/CN204513444U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696983A (en) * | 2015-03-12 | 2015-06-10 | 山东旺泰机械科技有限公司 | Self-supporting wide gap heat exchanging element |
| CN104696983B (en) * | 2015-03-12 | 2017-05-17 | 山东旺泰科技有限公司 | Self-supporting wide gap heat exchanging element |
| CN106440884A (en) * | 2016-07-29 | 2017-02-22 | 非凡鸿盛科技发展（深圳）有限公司 | Heat exchanger and heat exchange plate thereof |
| CN106556275A (en) * | 2016-12-01 | 2017-04-05 | 浙江大学 | A kind of interstage cooler and its cascade EDFA tower tray |
| CN106731493A (en) * | 2016-12-01 | 2017-05-31 | 浙江大学 | A kind of square filler tower for smoke carbon dioxide capture |
| CN106731493B (en) * | 2016-12-01 | 2019-05-07 | 浙江大学 | A kind of square filler tower for smoke carbon dioxide capture |
| CN110469868A (en) * | 2019-09-11 | 2019-11-19 | 南京同诚节能环保装备研究院有限公司 | A kind of Novel plate type air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |