CN102287848A - Oblique fin cast air preheater - Google Patents
Oblique fin cast air preheater Download PDFInfo
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- CN102287848A CN102287848A CN201110214670XA CN201110214670A CN102287848A CN 102287848 A CN102287848 A CN 102287848A CN 201110214670X A CN201110214670X A CN 201110214670XA CN 201110214670 A CN201110214670 A CN 201110214670A CN 102287848 A CN102287848 A CN 102287848A
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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
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Abstract
The invention relates to an oblique fin cast air preheater. The air preheater comprises a shell, a flue gas inlet, a flue gas outlet, an air inlet, an air outlet, and a heat exchange element and a sealing structure which are arranged in the shell, wherein the heat exchange element comprises a plurality of cast fin plate heat exchange units; each cast fin plate heat exchange unit comprises substrates and fin groups arranged on the substrates; in each cast fin plate heat exchange unit, the two substrates are aligned, and sealing surfaces at the ends of the edges of the substrates are connected through sealing bolts in a sealed mode; and the fin groups arranged on the substrates of each cast fin plate heat exchange unit comprise an oblique fin group. Compared with the prior art, the oblique fin cast air preheater solves the problem that ash is easily accumulated on the fins of a cast fin plate air preheater in the prior art; oblique fins are arranged, so that the ash sinks to the oblique fins, slides downwards along the oblique surfaces of the oblique fins and leaves the oblique fins, and the ash supporting capacity of the fin groups is reduced; meanwhile, the oblique fin cast air preheater has the characteristics of high-efficiency heat exchange and high flow rate.
Description
Technical field
The present invention relates to the energy-conservation heat-exchange apparatus technology of high efficient heat exchanging in the mechanized equipment engineering, particularly relate to a kind of oblique fin casting air preheater.
Background technology
Therefore casting fin plate regenerative air heater usually is used for substituting tubular air preheater because it has the characteristic of anti-flue gas dew point corrosion in old mechanized equipment is engineered.
In the prior art, common casting fin plate regenerative air heater as shown in Figure 1, its structure includes housing 2, smoke inlet 1, exhanst gas outlet 7, air intake 6, air outlet slit 4, and is arranged at heat exchange element 3 and hermetically-sealed construction 5 in the housing 2.Its course of work is: flue gas enters from smoke inlet 1, discharge to exhanst gas outlet 7 after heat exchange element 3 heat exchange heat releases from smoke inlet 1, air enters from the air intake 6 of housing 2 sidewalls, discharges from air intake 6 air outlet slit 4 to housing 2 sidewalls after heat exchange element 3 heat exchanges heat absorption.Its heat exchange element 3 has generally included a plurality of casting fin plate heat exchange units, the fin 311 that casting fin plate heat exchange unit includes substrate 31 and is arranged at substrate 31, casting fin plate heat exchange unit by 31 alignment of two substrates be provided with, and respectively by the be tightly connected sealing surface 32 of its end, edge of sealing bolt 10, between sealing surface 32, can install sealing gasket 9 additional for sealing better.
Its operation principle is: still the flue gas with low temperature exhaust heat enters casting fin plate regenerative air heater from smoke inlet 1 high speed that the housing 2 of casting the fin plate regenerative air heater is provided with, after casting fin plate heat exchange unit heat exchange heat release, discharge from the exhanst gas outlet 7 that the housing 2 of casting the fin plate regenerative air heater is provided with.And the flow process of air side is divided into two journeys, compress at a high speed from the air intake 6 of casting fin plate regenerative air heater sidewall, level is finished a journey after flowing to cover plate 8,90 ° of turnovers continue to flow along cover plate 8 then, level flows to the air outlet slit 4 of casting fin plate regenerative air heater sidewall and flows out after 90 ° of turnovers again, finishes second journey, in this two journey, air is from casting fin plate heat exchange unit heat exchange heat absorption, and wherein the flow direction of air is vertical mutually with the flow direction of flue gas.
As shown in Figure 2, the casting fin plate heat exchange unit of above-mentioned casting fin plate regenerative air heater of the prior art, its fin 311 all with substrate 31 vertical settings, and fin 311 surfaces are more coarse, make ashes be subjected to the supporting of fin 311 horizontal directions, easily deposition flue gas ashes form the dirt layer, thereby increase thermal resistance, reduce heat exchange efficiency.If only, increase heat exchange area and improve heat exchange efficiency, because the large-area fin 311 easier ashes that accumulate are lost more than gain by increasing the mode of fin area.
Thereby improve at the problems referred to above of the prior art, research and development aim at the casting fin plate regenerative air heater of the big flow of large tracts of land and narrow gap under the worst hot case, have very far-reaching and significant meaning in field of engineering technology.
Therefore, at above-mentioned the deficiencies in the prior art part, needing badly provides a kind of fin of can avoiding easily to accumulate ashes, and has the casting air preheater technology of high efficient heat exchanging, big flow.
Summary of the invention
The objective of the invention is to avoid weak point of the prior art and provide a kind of fin of can avoiding easily to accumulate ashes, and have the oblique fin casting air preheater of high efficient heat exchanging, big flow.
Purpose of the present invention is achieved through the following technical solutions:
A kind of oblique fin casting air preheater is provided, include housing, smoke inlet, exhanst gas outlet, air intake, air outlet slit, and be arranged at heat exchange element and hermetically-sealed construction in the described housing, described heat exchange element includes a plurality of casting fin plate heat exchange units, the fins set that described casting fin plate heat exchange unit includes substrate and is arranged at described substrate, described casting fin plate heat exchange unit is provided with by two described substrate alignment, and respectively by the be tightly connected sealing surface of its end, edge of sealing bolt, wherein, in being arranged at the fins set of described substrate, described casting fin plate heat exchange unit is provided with the fins set of oblique fin.
Wherein, the fins set of described substrate one side is set to the fins set of oblique fin, and the fins set of described substrate opposite side is set to the fins set of straight fins.
Wherein, the fins set of described substrate both sides all is set to the fins set of oblique fin.
Wherein, the fins set of described substrate one side or both sides is set to the fins set of oblique fin and straight fins mixing setting.
Wherein, the angle of the acute angle angle between described oblique fin and the described substrate is 35 °～80 °.
Wherein, the described oblique fin direction that favours described substrate is identical.
Wherein, in the described casting fin plate heat exchange unit fins set of the fins set of a substrate and another piece substrate along horizontal or vertical interlaced arrangement setting of described substrate.
Wherein, the fins set of the fins set of a substrate and another piece substrate is arranged setting along the horizontal or vertically mutual centering of described substrate in the described casting fin plate heat exchange unit.
Wherein, the fins set of the fins set of a substrate and another piece substrate is arranged setting along horizontal or vertical interlaced plug-in type of described substrate in the described casting fin plate heat exchange unit.
Wherein, described fins set is set to the fins set of one or several combination fins in triangular laminated structure, arc laminated structure, cylindrical-shaped structure and the circular cone spike structure.
Beneficial effect of the present invention:
Oblique fin casting air preheater of the present invention, include housing, smoke inlet, exhanst gas outlet, air intake, air outlet slit, and be arranged at heat exchange element and hermetically-sealed construction in the housing, heat exchange element includes a plurality of casting fin plate heat exchange units, the fins set that casting fin plate heat exchange unit includes substrate and is arranged at substrate, casting fin plate heat exchange unit is provided with by two substrate alignment, and respectively by the be tightly connected sealing surface of its end, edge of sealing bolt, wherein, in being arranged at the fins set of substrate, casting fin plate heat exchange unit is provided with the fins set of oblique fin.Compared with prior art, the fin that the present invention overcomes the casting fin plate regenerative air heater existence of prior art easily accumulates ashes and the low problem of heat exchange efficiency, the fins set that employing is made of oblique fin, the perhaps mode of the fins set that constitutes by oblique fin and straight fins, make ashes in air or the flue gas sink under the inclined plane of the oblique fin of promptly postponing on the oblique fin to slide away oblique fin by setting up the relatively large oblique fin in windward side, make the effect of fins set supporting ashes weaken, for the research and development of the casting fin plate heat exchange unit of the big flow of large tracts of land under the worst hot case and narrow gap provide technical foundation; Tiltedly fin is compared with straight fins simultaneously, has increased the heat exchange area of fin, thereby has further increased heat exchange efficiency.
Description of drawings
Utilize accompanying drawing that invention is described further, but the embodiment in the accompanying drawing does not constitute any limitation of the invention,, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the following drawings for those of ordinary skill in the art.
Fig. 1 is the structural representation of the casting fin plate regenerative air heater of prior art.
Fig. 2 is the structural representation of casting fin plate heat exchange unit of the casting fin plate regenerative air heater of prior art.
Fig. 3 is the part-structure schematic diagram of casting fin plate heat exchange unit of the embodiment 1 of oblique fin casting air preheater of the present invention.
Fig. 4 is the structural representation of casting fin plate heat exchange unit of the embodiment 2 of oblique fin casting air preheater of the present invention.
Fig. 5 is the structural representation of casting fin plate heat exchange unit of the embodiment 3 of oblique fin casting air preheater of the present invention.
Fig. 6 is the structural representation of casting fin plate heat exchange unit of the embodiment 4 of oblique fin casting air preheater of the present invention.
Fig. 7 is the structural representation of casting fin plate heat exchange unit of the embodiment 7 of oblique fin casting air preheater of the present invention.
Fig. 8 is the structural representation of casting fin plate heat exchange unit of the embodiment 10 of oblique fin casting air preheater of the present invention.
Fig. 9 is the partial structurtes schematic diagram of the embodiment 10 of oblique fin casting air preheater of the present invention.
In Fig. 1 to Fig. 9, include:
1---smoke inlet, 2---housing,
3---heat exchange element,
31---the oblique fin of substrate, 311---straight fins, 312---,
32---sealing surface, 33---sealing bolt hole,
4---air outlet slit, 5---hermetically-sealed construction, 6---air intake, 7---exhanst gas outlet, 8---cover plate,
9---sealing gasket, 10---sealing bolt,
A---vertically, B---laterally.
The specific embodiment
With the following Examples the present invention is further described.
Embodiment 1
One of specific embodiment of oblique fin casting air preheater of the present invention, with reference to illustrated in figures 1 and 2, include housing 2, smoke inlet 1, exhanst gas outlet 7, air intake 6, air outlet slit 4, and be arranged at heat exchange element 3 and hermetically-sealed construction 5 in the housing 2, heat exchange element 3 includes a plurality of casting fin plate heat exchange units, the fins set that casting fin plate heat exchange unit includes substrate 31 and is arranged at substrate 31, casting fin plate heat exchange unit is provided with by 31 alignment of two substrates, and wear sealing bolt hole 33(as shown in Figure 3 by sealing bolt respectively) sealing surface of its end, edge that is tightly connected.The material of heat exchange element is casting or alloy manufacturing, two substrates 31 of casting fin plate heat exchange unit constitute a casting fin plate heat exchange unit by the be tightly connected sealing surface at its two ends of sealing bolt, a plurality of casting fin plate heat exchange units link together and constitute the heat exchange element module, and several heat exchange element modules are assembled into an oblique fin casting air preheater.
Concrete, in being arranged at the fins set of substrate 31, casting fin plate heat exchange unit is provided with the fins set of oblique fin 312.For the research and development of the big flow fin plate of large tracts of land under the worst hot case and narrow gap unit provide technical foundation.Compared with prior art, the fin that the present invention overcomes the casting fin plate regenerative air heater existence of prior art easily accumulates ashes and the low problem of heat exchange efficiency, the fins set that employing is made of oblique fin 312, the perhaps mode of the fins set that constitutes by oblique fin 312 and straight fins 311, make ashes in air or the flue gas sink under the inclined plane of the oblique fin 312 of promptly postponing on the oblique fin 312 to slide away oblique fin 312 by setting up the relatively large oblique fin 312 in windward side, make the effect of fins set supporting ashes weaken, for the research and development of the casting fin plate heat exchange unit of the big flow of large tracts of land under the worst hot case and narrow gap provide technical foundation; Tiltedly fin 312 is compared with straight fins 311 simultaneously, has increased the heat exchange area of fin, thereby has further increased heat exchange efficiency.
Concrete, as shown in Figure 3, the fins set that the is arranged at substrate 31 1 sides fins set that oblique fin 312 constitutes of serving as reasons is arranged at the fins set of fins set for being made of straight fins 311 of substrate 31 opposite sides.Preferably in casting fin plate heat exchange unit, be positioned at the inboard fin fins set that oblique fin 312 constitutes of serving as reasons.
Concrete, the acute angle that is provided with between oblique fin 312 and the substrate 31
θAngle be 35 °～80 ° under same heat transfer space, the oblique fin of inclination 312 exceeds than the length that highly is the straight fins 311 of H
, corresponding heat exchange area also increases,
θWith 35 °～80 ° be optimum, different acute angles
θ,Heat exchange area increases ratio not to be waited from 2%～74%, sees following table 1 for details.
Table 1 acute angle
θWith the heat exchange area relation table
| θDegree | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
H
 |
0.74H | 0.56H | 0.41H | 0.31H | 0.22H | 0.15H | 0.10H | 0.06H | 0.04H | 0.02H |
| Magnification | 74% | 56% | 41% | 31% | 22% | 15% | 10% | 6% | 4% | 2% |
Concrete, the direction that oblique fin 312 favours substrate 31 is identical, also can be inequality.The oblique fin 312 that is provided with in substrate 31 1 sides and the oblique fin 312 of substrate 31 opposite sides setting can be with identical incline direction settings, also can be with different incline direction settings; Can also be between the oblique fin 312 that substrate 31 1 sides are provided with identical incline direction setting, also can be with different incline direction settings.
Concrete, the structure of the fin in the fins set is the fins set of fin of the combination of a kind of structure in triangular laminated structure, arc laminated structure, cylindrical-shaped structure and the circular cone spike structure or several structures.Any structure in preferred triangular laminated structure of fin in the fins set and the circular cone spike structure or two kinds combining structure.
Oblique fin casting air preheater of the present invention, in the smoke pre-heating recovery system of all kinds of devices that can be applicable to the newly-built of oil plant or transform, structural principle that it is new and manufacturing technology have overcome the shortcoming of prior art casting air preheater, reduce cleaning and maintenance cost, can be widely used in being applicable in various oil refining, chemical industry, the chemical fertilizer plant, and have bigger economic benefit.
Two of the specific embodiment of oblique fin casting air preheater of the present invention, as shown in Figure 4, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 1 is, the fins set that the is arranged at substrate 31 both sides fins set that oblique fin 312 constitutes of all serving as reasons.Heat exchange efficiency further increases, and can thoroughly solve the problem that fin easily accumulates ashes.
Embodiment 3
Three of the specific embodiment of oblique fin casting air preheater of the present invention, as shown in Figure 5, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 1 is, serve as reasons oblique fin 312 and straight fins 311 of the fins set that is arranged at substrate 31 1 sides or both sides mixes the fins set that constitutes.Take into account the advantage of straight fins 311 and oblique fin 312.
Embodiment 4
Four of the specific embodiment of oblique fin casting air preheater of the present invention, as shown in Figure 6, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 1 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is along horizontal or vertical interlaced arrangement setting of substrate 31 in the casting fin plate heat exchange unit.The interlaced arrangement setting of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31; The perhaps interlaced arrangement setting of every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31.
Five of the specific embodiment of oblique fin casting air preheater of the present invention, the main technical schemes of present embodiment is identical with embodiment 2, and unaccounted feature adopts the explanation among the embodiment 2 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 2 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is along horizontal or vertical interlaced arrangement setting of substrate 31 in the casting fin plate heat exchange unit.The interlaced arrangement setting of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31; The perhaps interlaced arrangement setting of every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31.
Embodiment 6
Six of the specific embodiment of oblique fin casting air preheater of the present invention, the main technical schemes of present embodiment is identical with embodiment 3, and unaccounted feature adopts the explanation among the embodiment 3 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 3 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is along horizontal or vertical interlaced arrangement setting of substrate 31 in the casting fin plate heat exchange unit.The interlaced arrangement setting of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31; The perhaps interlaced arrangement setting of every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31.
Seven of the specific embodiment of oblique fin casting air preheater of the present invention, as shown in Figure 7, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 1 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is arranged along the horizontal or vertically mutual centering of substrate 31 and is provided with in the casting fin plate heat exchange unit.The mutual centering of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31 is arranged and is provided with; Perhaps the mutual centering of the every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31 is arranged and is provided with.
Eight of the specific embodiment of oblique fin casting air preheater of the present invention, the main technical schemes of present embodiment is identical with embodiment 2, and unaccounted feature adopts the explanation among the embodiment 2 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 2 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is arranged along the horizontal or vertically mutual centering of substrate 31 and is provided with in the casting fin plate heat exchange unit.The mutual centering of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31 is arranged and is provided with; Perhaps the mutual centering of the every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31 is arranged and is provided with.
Nine of the specific embodiment of oblique fin casting air preheater of the present invention, the main technical schemes of present embodiment is identical with embodiment 3, and unaccounted feature adopts the explanation among the embodiment 3 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 3 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is arranged along the horizontal or vertically mutual centering of substrate 31 and is provided with in the casting fin plate heat exchange unit.The mutual centering of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31 is arranged and is provided with; Perhaps the mutual centering of the every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31 is arranged and is provided with.
Ten of the specific embodiment of oblique fin casting air preheater of the present invention, as Fig. 8 and shown in Figure 9, the main technical schemes of present embodiment is identical with embodiment 1, in the present embodiment unaccounted feature, adopt the explanation among the embodiment 1, no longer give unnecessary details at this.The difference of present embodiment and embodiment 1 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is arranged along horizontal or vertical interlaced plug-in type of substrate 31 and is provided with in the casting fin plate heat exchange unit.The interlaced plug-in type of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31 is arranged and is provided with; Perhaps the interlaced plug-in type of the every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31 is arranged and is provided with.The air root of fin of the fins set of rushing in the other side mutually that fails to be convened for lack of a quorum like this, agitation air stream, thus wash away flue dust completely.
Embodiment 11
11 of the specific embodiment of oblique fin casting air preheater of the present invention, the main technical schemes of present embodiment is identical with embodiment 2, and unaccounted feature adopts the explanation among the embodiment 2 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 2 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is arranged along horizontal or vertical interlaced plug-in type of substrate 31 and is provided with in the casting fin plate heat exchange unit.The interlaced plug-in type of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31 is arranged and is provided with; Perhaps the interlaced plug-in type of the every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31 is arranged and is provided with.The air root of fin of the fins set of rushing in the other side mutually that fails to be convened for lack of a quorum like this, agitation air stream, thus wash away flue dust completely.
Embodiment 12
12 of the specific embodiment of oblique fin casting air preheater of the present invention, the main technical schemes of present embodiment is identical with embodiment 3, and unaccounted feature adopts the explanation among the embodiment 3 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 3 is that the fins set of the fins set of a substrate 31 and another piece substrate 31 is arranged along horizontal or vertical interlaced plug-in type of substrate 31 and is provided with in the casting fin plate heat exchange unit.The interlaced plug-in type of every row's fin in the every row's fin in the fins set of a substrate 31 and the fins set of another piece substrate 31 is arranged and is provided with; Perhaps the interlaced plug-in type of the every row fin in the fins set of the every row fin in the fins set of a substrate 31 and another piece substrate 31 is arranged and is provided with.The air root of fin of the fins set of rushing in the other side mutually that fails to be convened for lack of a quorum like this, agitation air stream, thus wash away flue dust completely.
Should be noted that at last; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (10)
1. an oblique fin is cast air preheater, include housing, smoke inlet, exhanst gas outlet, air intake, air outlet slit, and be arranged at heat exchange element and hermetically-sealed construction in the described housing, described heat exchange element includes a plurality of casting fin plate heat exchange units, the fins set that described casting fin plate heat exchange unit includes substrate and is arranged at described substrate, described casting fin plate heat exchange unit is provided with by two described substrate alignment, and, it is characterized in that: the fins set that in described casting fin plate heat exchange unit is arranged at the fins set of described substrate, is provided with oblique fin respectively by the be tightly connected sealing surface of its end, edge of sealing bolt.
2. oblique fin casting air preheater according to claim 1, it is characterized in that: the fins set of described substrate one side is set to the fins set of oblique fin, and the fins set of described substrate opposite side is set to the fins set of straight fins.
3. oblique fin casting air preheater according to claim 1, it is characterized in that: the fins set of described substrate both sides all is set to the fins set of oblique fin.
4. oblique fin casting air preheater according to claim 1, it is characterized in that: the fins set of described substrate one side or both sides is set to oblique fin and straight fins mixes the fins set that is provided with.
5. according to claim 1 or 2 or 3 or 4 described oblique fin casting air preheaters, it is characterized in that: the angle of the acute angle angle between described oblique fin and the described substrate is 35 °～80 °.
6. oblique fin casting air preheater according to claim 5, it is characterized in that: the direction that described oblique fin favours described substrate is identical.
7. according to claim 1 or 2 or 3 or 4 described oblique fin casting air preheaters, it is characterized in that: the fins set of the fins set of a substrate and another piece substrate is along horizontal or vertical interlaced arrangement setting of described substrate in the described casting fin plate heat exchange unit.
8. according to claim 1 or 2 or 3 or 4 described oblique fin casting air preheaters, it is characterized in that: the fins set of the fins set of a substrate and another piece substrate is arranged along the horizontal or vertically mutual centering of described substrate and is provided with in the described casting fin plate heat exchange unit.
9. according to claim 1 or 2 or 3 or 4 described oblique fin casting air preheaters, it is characterized in that: the fins set of the fins set of a substrate and another piece substrate is arranged along horizontal or vertical interlaced plug-in type of described substrate and is provided with in the described casting fin plate heat exchange unit.
10. oblique fin casting air preheater according to claim 1, it is characterized in that: described fins set is set to the fins set of one or several combination fins in triangular laminated structure, arc laminated structure, cylindrical-shaped structure and the circular cone spike structure.
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| CN201110214670XA CN102287848A (en) | 2011-07-29 | 2011-07-29 | Oblique fin cast air preheater |
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| CN103277908A (en) * | 2013-06-01 | 2013-09-04 | 广东五星太阳能股份有限公司 | Efficient plate solar air collector with louvered fin heat exchanging structure |
| CN103353125A (en) * | 2013-07-23 | 2013-10-16 | 茂名重力石化机械制造有限公司 | Baffling fin casting plate-type air pre-heater |
| CN103389002A (en) * | 2013-07-23 | 2013-11-13 | 茂名重力石化机械制造有限公司 | Waveband fin cast plate air preheater |
| CN103727555A (en) * | 2013-07-23 | 2014-04-16 | 茂名重力石化机械制造有限公司 | Waved-tooth fin casting plate type air pre-heater |
| WO2016123912A1 (en) * | 2015-02-03 | 2016-08-11 | 冯伶 | Ultra-thin steel plate type heating radiator |
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| SU1244433A1 (en) * | 1985-01-21 | 1986-07-15 | Воронежский Ордена Трудового Красного Знамени Инженерно-Строительный Институт | Air heater |
| SU1521988A1 (en) * | 1987-10-30 | 1989-11-15 | Киевский Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции | Heat exchanger for cooling loose material |
| CN2457475Y (en) * | 2000-12-31 | 2001-10-31 | 西安交通大学 | Honeycomb type heating stove |
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| CN103277908B (en) * | 2013-06-01 | 2015-11-18 | 广东五星太阳能股份有限公司 | There is the high-efficient flat-plate solar energy air heat collector of louvered fin heat exchange structure |
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| CN103727555A (en) * | 2013-07-23 | 2014-04-16 | 茂名重力石化机械制造有限公司 | Waved-tooth fin casting plate type air pre-heater |
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Application publication date: 20111221 |