CN103134373A - Novel finned tube sheet heat-transferring tube - Google Patents
Novel finned tube sheet heat-transferring tube Download PDFInfo
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- CN103134373A CN103134373A CN 201110391630 CN201110391630A CN103134373A CN 103134373 A CN103134373 A CN 103134373A CN 201110391630 CN201110391630 CN 201110391630 CN 201110391630 A CN201110391630 A CN 201110391630A CN 103134373 A CN103134373 A CN 103134373A
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Abstract
A novel finned tube sheet heat-transferring tube comprises two same finned sheets. Each finned sheet comprises a sheet body and a plurality of fins, the shape of cross section of the vertical direction of each sheet body is in a type like a Chinese character 'men', each fin is connected with the surface of each sheet body, the opening ends of the two finned sheet are in oppositely butted joint to form a pipeline, each fin is perpendicular to the plane of each sheet body, and the fins are respectively connected on the inner surface and the outer surface of each sheet body. For fins which are connected on the inner surface of each sheet body, the length directions of the fins are in accordance with the length direction of the pipeline, the fins are in a straightness shape, and an air channel which is formed by each fin in an arrangement mode is in a straight line shape. For fins which are connected on the outer surface of each sheet body, the length directions of the fins are perpendicular to the length direction of the pipeline, one face of each fin is straight, the other face of each fin is arc-shaped, and an air channel which is formed by each fin in an arrangement mode is in an 'S' shape. Through the technical scheme, a fluid state of a heat transferring medium is good, and a good turbulent flow effect is produced.
Description
Technical field
The technical program belongs to heat exchange device technical field, specifically a kind of high temperature resistant Novel fin tube sheet heat-transfer pipe for air preheater.
Background technology
The operation principle of air preheater is, hot flue gas and cold air are carried out heat exchange, and hot flue-gas temperature reduces, and reclaims heat, reaches discharging.The cold air temperature raises, and obtains heat, as combustion-supporting, and fuel saving, this just requires heat exchanger components to have good heat transfer effect.Temperature due to hot flue gas is very high in addition, the highest can be greater than 1000 ℃, in addition, hot flue gas itself has very strong corrosivity, the performance of heat exchanging device under hot conditions has high requirements like this.
Summary of the invention
For the physico/chemical properties of the hot flue gas of being satisfied with air preheater and the high request of heat exchange property heat exchanger, the technical program proposes a kind of new heat-transfer pipe, and concrete technical scheme is as follows:
A kind of Novel fin tube sheet heat-transfer pipe comprises two identical fin plates; Described fin plate comprises plate body and a plurality of fin, and the shape in the vertical direction cross section of plate body is " door " font, and each fin is connected to the surface of plate body; The openend of two fin plates docks the formation pipeline in opposite directions; Described fin is vertical with the plate body plane, and each fin is connected to inner surface and the outer surface of plate body;
Fin for the inner surface that is connected to plate body:
The length direction of fin is consistent with the length direction of pipeline; Fin is flat shape, and it is rectilinear form that each fin is arranged the air channel that consists of;
Fin for the outer surface that is connected to plate body:
The length direction of fin is vertical with the length direction of pipeline; The one side of fin is straight, and another side is arc, and it is the serpentine shape that each fin is arranged the air channel that consists of.
The cross section of the length direction of the fin of the described outer surface that is connected to plate body is trapezoidal.
The two side of " door " font openend of described plate body all is provided with the bending edges outside pipeline; The bending edges of the correspondence of two fin plates is closely connected.Be provided with sealing gasket between the bending edges that the correspondence of two fin plates connects, pass through bolted between two bending edges and sealing gasket.
The material of described fin plate is cast iron or chrome-nickel steel or Birmasil, preferably low-alloy spheroidal graphite cast-iron.
Described fin plate is the overall structure of casting.
At the bottom of being connected to the fin of outer surface of plate body, large top is little, and the base thickness top is thin, and intensity is high, the requirement of the pattern draft when satisfying casting.This structural strength will be much better than the fin of flat construction, and the effective heat transfer sheet area increasing of fin, fin weight saving, and the fin end face is thinner, more is difficult for dust stratification, is that of structural design improves greatly.
The arc surface of the fin of the outer surface that is connected to plate body in formation S type air channel is Heterogeneous Permutation in opposite directions, is laterally that equidirectional is arranged, and spacing equates.
Use the technical program, the fluid state of heat transferring medium (flue gas or air) is better, produces flow-disturbing effect preferably.Fluid is constantly shunting and interflow in staggered array of fins, and flows along camber line all the time, makes the stroke of medium in array of fins longer, and the time of staying is longer, has improved heat exchange efficiency.This can only need fin heat exchange pipe still less under the condition of identical heat exchange amount, equipment is lighter, and volume is less, invests more economical.
Description of drawings
Fig. 1 is the local schematic perspective view that amplifies of example structure;
Fig. 2 is the schematic perspective view of embodiment;
Fig. 3 is the schematic diagram of embodiment
Fig. 4 is the fin schematic diagram that is connected to the outer surface of plate body;
Fig. 5 is fluid at the outer surface of plate body along air channel flow trace schematic diagram, and the direction of arrow is fluid flow direction;
In figure, fin plate 1, plate body 2, the fin 301 that is connected to the inner surface of plate body, the fin 302 that is connected to the outer surface of plate body, bending edges 4, sealing gasket 5, bolt 6.
The specific embodiment
The technical program is further illustrated as follows below in conjunction with accompanying drawing and the specific embodiment:
A kind of Novel fin tube sheet heat-transfer pipe comprises two identical fin plates; Described fin plate comprises plate body and a plurality of fin, and the shape in the vertical direction cross section of plate body is " door " font, and each fin is connected to the surface of plate body; The openend of two fin plates docks the formation pipeline in opposite directions; Described fin is vertical with the plate body plane, and each fin is connected to inner surface and the outer surface of plate body;
Fin for the inner surface that is connected to plate body:
The length direction of fin is consistent with the length direction of pipeline; Fin is flat shape, and it is rectilinear form that each fin is arranged the air channel that consists of;
Fin for the outer surface that is connected to plate body:
The length direction of fin is vertical with the length direction of pipeline; The one side of fin is straight, and another side is arc, and it is the serpentine shape that each fin is arranged the air channel that consists of.
The cross section of the length direction of the fin of the described outer surface that is connected to plate body is trapezoidal.
The two side of " door " font openend of described plate body all is provided with the bending edges outside pipeline; The bending edges of the correspondence of two fin plates is closely connected.Be provided with sealing gasket between the bending edges that the correspondence of two fin plates connects, pass through bolted between two bending edges and sealing gasket.
The material of described fin plate is cast iron or chrome-nickel steel or Birmasil, preferably low-alloy spheroidal graphite cast-iron.Described fin plate is the overall structure of casting.
In this example, be connected to the fin of outer surface of plate body at the bottom of large top little, the base thickness top is thin, intensity is high, the requirement of the pattern draft when satisfying casting.This structural strength will be much better than the fin of flat construction, and the effective heat transfer sheet area increasing of fin, fin weight saving, and the fin end face is thinner, more is difficult for dust stratification, is that of structural design improves greatly.The arc surface of the fin of the outer surface that is connected to plate body in formation S type air channel is Heterogeneous Permutation in opposite directions, is laterally that equidirectional is arranged, and spacing equates.
Claims (7)
1. a Novel fin tube sheet heat-transfer pipe, is characterized in that comprising two identical fin plates; Described fin plate comprises plate body and a plurality of fin, and the shape in the vertical direction cross section of plate body is " door " font, and each fin is connected to the surface of plate body; The openend of two fin plates docks the formation pipeline in opposite directions; Described fin is vertical with the plate body plane, and each fin is connected to inner surface and the outer surface of plate body;
Fin for the inner surface that is connected to plate body:
The length direction of fin is consistent with the length direction of pipeline; Fin is flat shape, and it is rectilinear form that each fin is arranged the air channel that consists of;
Fin for the outer surface that is connected to plate body:
The length direction of fin is vertical with the length direction of pipeline; The one side of fin is straight, and another side is arc, and it is the serpentine shape that each fin is arranged the air channel that consists of.
2. Novel fin tube sheet heat-transfer pipe according to claim 1 is characterized in that the cross section of length direction of the fin of the described outer surface that is connected to plate body is trapezoidal.
3. Novel fin tube sheet heat-transfer pipe according to claim 1, the two side that it is characterized in that " door " font openend of described plate body all is provided with the bending edges outside pipeline; The bending edges of the correspondence of two fin plates is closely connected.
4. Novel fin tube sheet heat-transfer pipe according to claim 1 is characterized in that being provided with sealing gasket between bending edges that the correspondence at two fin plates connects, passes through bolted between two bending edges and sealing gasket.
5. Novel fin tube sheet heat-transfer pipe according to claim 1, the material that it is characterized in that described fin plate is cast iron or chrome-nickel steel or Birmasil.
6. Novel fin tube sheet heat-transfer pipe according to claim 1, the material that it is characterized in that described fin plate is low-alloy spheroidal graphite cast-iron.
7. Novel fin tube sheet heat-transfer pipe according to claim 1, is characterized in that described fin plate is the overall structure of casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110391630 CN103134373A (en) | 2011-12-01 | 2011-12-01 | Novel finned tube sheet heat-transferring tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110391630 CN103134373A (en) | 2011-12-01 | 2011-12-01 | Novel finned tube sheet heat-transferring tube |
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| Publication Number | Publication Date |
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| CN103134373A true CN103134373A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110391630 Pending CN103134373A (en) | 2011-12-01 | 2011-12-01 | Novel finned tube sheet heat-transferring tube |
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| CN (1) | CN103134373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871315A (en) * | 2017-03-10 | 2017-06-20 | 河北享美环保科技有限公司 | A kind of window fresh air purifier |
-
2011
- 2011-12-01 CN CN 201110391630 patent/CN103134373A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871315A (en) * | 2017-03-10 | 2017-06-20 | 河北享美环保科技有限公司 | A kind of window fresh air purifier |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |