CN103673716A - Internal spiral type abnormal-shaped outer fin heat exchange tube - Google Patents

Internal spiral type abnormal-shaped outer fin heat exchange tube Download PDF

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Publication number
CN103673716A
CN103673716A CN201310695089.3A CN201310695089A CN103673716A CN 103673716 A CN103673716 A CN 103673716A CN 201310695089 A CN201310695089 A CN 201310695089A CN 103673716 A CN103673716 A CN 103673716A
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CN
China
Prior art keywords
heat exchange
tube
outer fin
spiral
fin heat
Prior art date
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Pending
Application number
CN201310695089.3A
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Chinese (zh)
Inventor
杨明
陈江春
李建平
胡亚才
陈正贝
华蒙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU HANHUI GENERAL EQUIPMENT Co Ltd
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HANGZHOU HANHUI GENERAL EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by HANGZHOU HANHUI GENERAL EQUIPMENT Co Ltd filed Critical HANGZHOU HANHUI GENERAL EQUIPMENT Co Ltd
Priority to CN201310695089.3A priority Critical patent/CN103673716A/en
Publication of CN103673716A publication Critical patent/CN103673716A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an internal spiral type abnormal-shaped outer fin heat exchange tube. The internal spiral type abnormal-shaped outer fin heat exchange tube comprises a spiral tube and a plurality of external fins; petal-shaped holes of the external fins are consistent with the radial section of the spiral tube, the periphery of the petal-shaped hole of one side face of each external fin is provided with a pedal-shaped flange, the external fins are sequentially stacked outside the spiral tube to form a cooling fin set, and the external fins are tightly matched with the outer surface of the spiral tube to form the outer fin heat exchange tube; the two ends of the spiral tube are respectively in a ring shape, the middle portion of the spiral tube is spiral, and spiral heads are 3-10 in number. According to the internal spiral type abnormal-shaped outer fin heat exchange tube, fluid flowing through the heat exchange tube is prevented from generating natural turbulence, the tube wall does not generate scale, a viscous flow layer is not generated, large flow resistance is not generated, and heat exchange efficiency is obviously improved. It is guaranteed that a manufactured heat exchanged operates efficiently and safely for a long time, and scaling does not occur in the tube. A heat exchange element is convenient to manufacture and install.

Description

The outer fin heat exchange pipe of inner-spiral type abnormity
Technical field
The present invention relates to a kind of heat exchange element, be specifically related to the outer fin heat exchange pipe of a kind of inner-spiral type abnormity.
Background technology
External finned tube is a kind of high efficient heat exchanging element, outside managing, usings especially gas during as medium, and effect is the most obvious.Traditional outer fin heat exchange pipe is by methods such as welding or expanded joints, to connect the fin of some outward at common pipe, but the problem that this finned tube exists is easily fouling in pipe, easily at tube wall, forms detention layer, has reduced heat exchange efficiency.In heat exchange field, for improving the heat exchange efficiency of traditional round tube heat exchanging component, science and technology researcher has studied a variety of substitute products for traditional circular pipe type heat exchange element, as " bellows ", " spiral flat tube ", " shaped telescopic tube " etc., core concept is to improve the heat exchanger effectiveness of this circular pipe type heat exchange element, but these pipes, when improving heat transfer effect, produce larger flow resistance in pipe, and it is extremely complicated to manufacture mounting process.
Summary of the invention
In order to solve the problem existing in background technology, the object of the present invention is to provide the outer fin heat exchange pipe of a kind of inner-spiral type abnormity, the fluid flowing through in pipe produce nature turbulent flow, tube wall non-scaling and do not produce detention layer, do not produce large flow resistance, heat exchange efficiency significantly improves.
The technical solution used in the present invention is:
The present invention includes the outer fin of helix tube and multi-disc; The petal hole of the outer fin of multi-disc is consistent with helix tube radial section, the petal hole of a side of every outer fin all has petal flange around, the outer fin of multi-disc is superimposed upon outside helix tube in the same way successively, and the outer fin of multi-disc and helix tube outer surface tight fit, form outer fin heat exchange pipe.
Described helix tube two ends are annular, and centre is helical form, and spiral head number is 3~10, between two annular ends and pigtail, has a changeover portion, the shape of changeover portion self-assembling formation in process.
Described outer fin profile is circular, oval or square.
Compare with background technology, the beneficial effect having is:
The present invention can make the fluid that flows through in heat exchanger tube produce nature turbulent flow, tube wall non-scaling and do not produce detention layer, do not produce large flow resistance, heat exchange efficiency significantly improves; Guarantee the long-term highly effective and safe even running of heat exchanger of manufacturing, the manufacture of heat exchange element is easy for installation.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present invention.
Fig. 2 is longitudinal section of the present invention schematic diagram.
Fig. 3 is outer fin schematic diagram.
Fig. 4 is petal hole schematic diagram.
In figure: 1, helix tube, 2, the outer fin of multi-disc, 3, changeover portion, 4, spiral tube structure, 5, petal hole, 6, outer fin flange.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1 and Figure 2, the present invention includes the outer fin 2 of helix tube 1 and multi-disc; The petal hole 5 (as shown in Figure 4) of the outer fin 2 of multi-disc is consistent with helix tube 1 radial section, the petal hole 5 of 2 one sides of every outer fin all has petal flange 6 around, as shown in Figure 3, the outer fin 2 of multi-disc is superimposed upon outside helix tube 1 in the same way successively, form a radiating fin group, the outer fin 2 of multi-disc and helix tube 1 outer surface tight fit, form outer fin heat exchange pipe.
As shown in Figure 2, described helix tube 1 two ends are annular, middle is helical form (being spiral tube structure 4), spiral head number is 3~10, helical angle is 45~85 degree, as shown in Fig. 3, Fig. 4, be 4, between two annular ends and pigtail, have a changeover portion 3, the shape of changeover portion 3 self-assembling formation in process.Described outer fin 2 profiles are circular, oval or square etc., and as shown in Fig. 3, Fig. 4, profile be circle.
The present invention is socketed fin outside multi-disc outward at a kind of helix tube that can produce nature turbulent flow, make multi-disc fin and helix tube form an affixed integral body, when heat transferring medium (gas or liquid) passes through pipe, the application one of helix tube is that the fluid that makes to flow through in helix tube is turbulent shape, tube wall non-scaling, do not produce detention layer, significantly improve heat exchange efficiency, simultaneously do not produce again large flow resistance, and multi-disc fin outside pipe further improves heat exchange efficiency.This heat exchange element can guarantee the long-term highly effective and safe even running of heat exchanger and the interior non-scaling of pipe manufactured.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change that the present invention is made, all fall into protection scope of the present invention.

Claims (3)

1. the outer fin heat exchange pipe of inner-spiral type abnormity, is characterized in that: comprise the outer fin (2) of helix tube (1) and multi-disc; The petal hole (5) of the outer fin (2) of multi-disc is consistent with helix tube (1) radial section, the petal hole (5) of a side of every outer fin all has petal flange (6) around, the outer fin (2) of multi-disc is superimposed upon outside helix tube (1) in the same way successively, the outer fin (2) of multi-disc and helix tube (1) outer surface tight fit, form outer fin heat exchange pipe.
2. the outer fin heat exchange pipe of a kind of inner-spiral type abnormity according to claim 1, it is characterized in that: described helix tube (1) two ends are annular, centre is helical form, spiral head number is 3~10, between two annular ends and pigtail, there is respectively a changeover portion (3), shape self-assembling formation in process of changeover portion (3).
3. the outer fin heat exchange pipe of a kind of inner-spiral type abnormity according to claim 1, is characterized in that: outer fin (2) profile of described multi-disc is for circular, oval or square.
CN201310695089.3A 2013-12-18 2013-12-18 Internal spiral type abnormal-shaped outer fin heat exchange tube Pending CN103673716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310695089.3A CN103673716A (en) 2013-12-18 2013-12-18 Internal spiral type abnormal-shaped outer fin heat exchange tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310695089.3A CN103673716A (en) 2013-12-18 2013-12-18 Internal spiral type abnormal-shaped outer fin heat exchange tube

Publications (1)

Publication Number Publication Date
CN103673716A true CN103673716A (en) 2014-03-26

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CN201310695089.3A Pending CN103673716A (en) 2013-12-18 2013-12-18 Internal spiral type abnormal-shaped outer fin heat exchange tube

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066763A (en) * 2015-08-25 2015-11-18 北京大学 Heat exchange tube with special-shaped fins and turbulators and heat exchanger
CN112762429A (en) * 2021-01-28 2021-05-07 中国石油大学(华东) Water-cooled wall pipe of horizontal steam-injection boiler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2144290Y (en) * 1992-11-05 1993-10-20 谭伟雄 High-efficient fin screw-thread heat transfer pipe
CN1343867A (en) * 2000-09-18 2002-04-10 孟继安 Expansion-jointed corrugation-wound finned tube
CN203629401U (en) * 2013-12-18 2014-06-04 杭州汉惠通用设备有限公司 Inner spiral special-shaped outside fin heat exchange tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2144290Y (en) * 1992-11-05 1993-10-20 谭伟雄 High-efficient fin screw-thread heat transfer pipe
CN1343867A (en) * 2000-09-18 2002-04-10 孟继安 Expansion-jointed corrugation-wound finned tube
CN203629401U (en) * 2013-12-18 2014-06-04 杭州汉惠通用设备有限公司 Inner spiral special-shaped outside fin heat exchange tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105066763A (en) * 2015-08-25 2015-11-18 北京大学 Heat exchange tube with special-shaped fins and turbulators and heat exchanger
CN112762429A (en) * 2021-01-28 2021-05-07 中国石油大学(华东) Water-cooled wall pipe of horizontal steam-injection boiler

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Application publication date: 20140326