CN101581555A - Heat exchange tube with inner surface provided with convex independent drop-shaped fins - Google Patents
Heat exchange tube with inner surface provided with convex independent drop-shaped fins Download PDFInfo
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- CN101581555A CN101581555A CNA2009100402564A CN200910040256A CN101581555A CN 101581555 A CN101581555 A CN 101581555A CN A2009100402564 A CNA2009100402564 A CN A2009100402564A CN 200910040256 A CN200910040256 A CN 200910040256A CN 101581555 A CN101581555 A CN 101581555A
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- water droplet
- droplet shape
- fin
- heat exchanger
- exchanger tube
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Abstract
The invention discloses a heat exchange tube with the inner surface provided with convex independent drop-shaped fins, and the inner wall of a metal tube body is fully and uniformly distributed with groups of the inwards convex independent drop-shaped fins which are arranged vertically and horizontally. The groups of the inwards convex independent drop-shaped fins and the tube body are integrally molded and are welded to form the heat exchange tube. The heat exchange tube can greatly increase the heat transfer area, reduce fluid resistance, achieve the aim of efficiently exchanging and transferring heat, and can be widely applied to the power industry, civilian use air-conditioners or heat exchange equipment.
Description
Technical field
The present invention relates to metal heat exchanger tube technical field, particularly a kind of heat exchanger tube of inner surface projection water droplet shape independence fin.
Background technology
Mostly adopt seamless steel pipe to make single head or multiple-internal screw thread pipe at the used metal tube of heat exchanger at present, because general seamless steel pipe wall unevenness is even, the thread tooth type and the degree of depth are restricted, and can only draw the continuous thread flute profile of certain angle, and can't draw out the wide-angle thread tooth type of interruption.Its heat transfer area is less when adopting the continuous thread flute profile, and the flow resistance of convection cell is bigger, thereby there is the shortcoming that heat exchange efficiency is low, fluid mobility can differ from above-mentioned heat exchanger.
Summary of the invention
The object of the present invention is to provide a kind of heat exchanger tube of inner surface projection water droplet shape independence fin, these separately independently one group of water droplet shape fin after moulding on the metal tape, be welded into heat exchanger tube again, it can increase heat transfer area greatly, reduce flow resistance, thereby reaches the purpose of efficient heat transfer.
Technical solution proposed by the invention is such: a kind of heat exchanger tube of inner surface projection water droplet shape independence fin, comprise metal tube body, and described metal tube body inwall evenly is covered with one group of group convex water droplet shape independence fin arranging in length and breadth.
The longitudinal section of described water droplet shape fin and cross section are up-small and down-big trapezoidal.
The symmetrical center line of described water droplet shape fin and the inclined angle alpha between the tubular axis line are 26 ° of-35 ° of angles.
The geomery scope of described water droplet shape fin: highly be 0.1-1mm, outer face symmetry axis length is 5-10mm, and the outer face width is 0.3-2mm, and the spacing between adjacent each water droplet shape fins set is 1-3mm, and the pipe shaft matrix thickness is 0.25-2mm.
Described each group water droplet shape fin is distributed with 4-20 water droplet shape fin along the symmetry axis length direction.
Described water droplet shape fin and pipe shaft are monoblock type welding fabrication structure.
Described heat exchanger tube tubing adopts red copper or stainless steel.
The heat exchanger tube of inner surface projection water droplet shape independence fin of the present invention is to make the water droplet shape fin that one-side band is arranged in length and breadth by metal tape by the rag rolling, and its another side is a smooth flat, and then, reshaping is pipe and is welded into heat exchanger tube.Its key equipment is to install a pair of horizontal roller before shaping roller framework additional, i.e. a rag roller and a plain roller are used for rolling water droplet shape fin.
Compared with prior art, the present invention has following remarkable result:
(1) owing in heat exchanger tube, be provided with the protruding tilting water droplet shape independence fin of evenly arranging in length and breadth, according to the augmentation of heat transfer theory,, can produce strong stirring action when tube fluid MEDIA FLOW during through the water droplet shape fin of inside pipe wall, form turbulent flow and help heat transfer.With continuous thread-shaped is set in the existing pipe or polygon shape fin is compared, it is one group that the water droplet shape fin that is provided with in the pipe of the present invention is 4-20, and every group be separately independently, keeps a determining deviation mutually, thereby can increase the area that contacts with fluid greatly, help conducting heat.
(2) because the water droplet shape fin of evenly arranging in length and breadth in the pipe is streamlined, and respectively organize between the water droplet shape fin and all leave a determining deviation, thereby, significantly reduced the resistance of tube fluid, improve velocity in pipes, and then improved the heat transfer heat exchange efficiency of this heat exchanger tube.
Heat exchanger tube of the present invention can be widely used in power industry, civilian air-conditioner or the heat transmission equipment.
Description of drawings
Fig. 1 is the schematic perspective view that is used to weld the red copper band of the heat exchanger tube of making inner surface projection water droplet shape independence fin in the one embodiment of the invention.This band one side rolling have in length and breadth evenly arrange, independent tilting water droplet shape fin.
Fig. 2 is the combined roller structure schematic diagram that is used for the rolling band of red copper as shown in Figure 1.
Fig. 3 is the apparatus for production line schematic flow sheet that is used for the red copper band of the rolling fin of shape with water droplets as shown in Figure 1.
Fig. 4 is the structural representation that copper belt material forming shown in Figure 1 and moulding is welded into heat exchanger tube.
The specific embodiment
By following embodiment the present invention is further elaborated.
Referring to Fig. 1-shown in Figure 4, a kind of heat exchanger tube 3 of inner surface projection water droplet shape independence fin is by pipe shaft 1 and be covered with evenly distributed in length and breadth convex water droplet shape independence fin 2 at this pipe shaft 1 inwall and form.The water droplet shape independence fin 2 of present embodiment is neatly arranged with vertical and horizontal, the symmetrical center line of each water droplet shape fin 2 and the inclined angle alpha=30 ° angle between the tubular axis line, it is up-small and down-big trapezoidal that the longitudinal section of each water droplet shape fin 2 and cross section are, the matrix thickness T=0.25mm of pipe shaft 1, height H=the 0.8mm of each water droplet shape fin 2, its outer face symmetry axis length L is 5.9mm, the outer face width C is 0.36mm, spacing between adjacent each water droplet shape fins set 2 is 1.4mm, the external diameter of pipe of heat exchanger tube 3 is 7mm, and each group water droplet shape fin is distributed with 4 water droplet shape fins 2 along the symmetry axis length direction.The heat exchanger tube 3 of present embodiment adopts the red copper material to make.
The technological process of production of the heat exchanger tube of above-mentioned inner surface projection water droplet shape fin is such: the raw material inspection, and--the frame material--------welded tube is coiled the moulding pipe rolling fin by polishing--sizing--.Its production equipment is arranged as follows successively: stock shelf 11--rolls fin frame 12 and combination roller--shaping roller framework 13--welded tube board 14--sizing mill 15--crimping machine 16 thereof.The combination roller is formed by carving fin roller 12-1, combination roller matrix 12-2,12-3 and plain roller 12-4.
During production, the thin-walled red copper band that is placed on the stock shelf 11 is sent in the combination roller, this combination roller is by carving fin roller 12-1, combination roller matrix 12-2,12-3, plain roller 12-4 forms, carve the roll surface of fin roller 12-1 and make the water droplet connected in star of designing requirement, the surperficial thereon water droplet shape fin 2 that is carved with projection after making the red copper band by the combination roller, by what the format roll on the shaping roller framework 13 was rolled into inner surface projection water droplet shape fin the seam heat exchanger tube arranged afterwards, weld at the weld seam 1-1 of welded tube board 14 usefulness welded tube mills with heat exchanger tube 3, curling with sizing mill 15 sizings and by crimping machine 16 then is finished product again.
Claims (7)
1, a kind of heat exchanger tube of inner surface projection water droplet shape independence fin comprises metal tube body, and it is characterized in that: described metal tube body inwall evenly is covered with one group of group convex water droplet shape independence fin arranging in length and breadth.
2, the heat exchanger tube of inner surface according to claim 1 projection water droplet shape independence fin is characterized in that: the longitudinal section of described water droplet shape fin and cross section are up-small and down-big trapezoidal.
3, the heat exchanger tube of inner surface projection water droplet shape independence fin according to claim 1, it is characterized in that: the symmetrical center line of described water droplet shape fin and the inclined angle alpha between the tubular axis line are 26 ° of-35 ° of angles.
4, the heat exchanger tube of inner surface projection water droplet shape independence fin according to claim 2, it is characterized in that: the geomery scope of described water droplet shape fin: highly be 0.1-1mm, outer face symmetry axis length is 5-10mm, the outer face width is 0.3-2mm, spacing between adjacent each water droplet shape fins set is 1-3mm, and the pipe shaft matrix thickness is 0.25-2mm.
5, the heat exchanger tube of inner surface projection water droplet shape independence fin according to claim 1 is characterized in that: described each group water droplet shape fin is distributed with 4-20 water droplet shape fin along the symmetry axis length direction.
6, the heat exchanger tube of inner surface projection water droplet shape independence fin according to claim 1, it is characterized in that: described water droplet shape fin and pipe shaft are monoblock type welding fabrication structure.
7, the heat exchanger tube of inner surface projection water droplet shape independence fin according to claim 1, it is characterized in that: described heat exchanger tube tubing adopts red copper or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100402564A CN101581555A (en) | 2009-06-09 | 2009-06-09 | Heat exchange tube with inner surface provided with convex independent drop-shaped fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100402564A CN101581555A (en) | 2009-06-09 | 2009-06-09 | Heat exchange tube with inner surface provided with convex independent drop-shaped fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101581555A true CN101581555A (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100402564A Pending CN101581555A (en) | 2009-06-09 | 2009-06-09 | Heat exchange tube with inner surface provided with convex independent drop-shaped fins |
Country Status (1)
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| CN (1) | CN101581555A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542759A (en) * | 2012-07-12 | 2014-01-29 | 中国石油天然气股份有限公司 | Heat exchanging pipe with reinforced heat transfer elements |
| CN107621180A (en) * | 2017-10-25 | 2018-01-23 | 至玥腾风科技投资集团有限公司 | A kind of heat exchanger, gas turbine, boiler and heat exchanger preparation method |
| CN108662941A (en) * | 2018-05-21 | 2018-10-16 | 吉林建筑大学 | A kind of heat exchanger |
| CN108868911A (en) * | 2018-01-12 | 2018-11-23 | 至玥腾风科技投资集团有限公司 | A kind of electricity generation system and its control method |
-
2009
- 2009-06-09 CN CNA2009100402564A patent/CN101581555A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542759A (en) * | 2012-07-12 | 2014-01-29 | 中国石油天然气股份有限公司 | Heat exchanging pipe with reinforced heat transfer elements |
| CN107621180A (en) * | 2017-10-25 | 2018-01-23 | 至玥腾风科技投资集团有限公司 | A kind of heat exchanger, gas turbine, boiler and heat exchanger preparation method |
| CN108868911A (en) * | 2018-01-12 | 2018-11-23 | 至玥腾风科技投资集团有限公司 | A kind of electricity generation system and its control method |
| CN108868911B (en) * | 2018-01-12 | 2024-03-19 | 刘慕华 | Power generation system and control method thereof |
| CN108662941A (en) * | 2018-05-21 | 2018-10-16 | 吉林建筑大学 | A kind of heat exchanger |
| CN108662941B (en) * | 2018-05-21 | 2020-06-09 | 吉林建筑大学 | Heat exchanger |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |