CN205228244U - Reinforce heat transfer arc extended surface tube - Google Patents
Reinforce heat transfer arc extended surface tube Download PDFInfo
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- CN205228244U CN205228244U CN201521042273.9U CN201521042273U CN205228244U CN 205228244 U CN205228244 U CN 205228244U CN 201521042273 U CN201521042273 U CN 201521042273U CN 205228244 U CN205228244 U CN 205228244U
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Abstract
The utility model discloses a reinforce heat transfer arc extended surface tube can improve fin wearability and corrosion resistance, reduces the loss of material. Reinforce heat transfer arc extended surface tube includes the parent tube and installs the fin at the parent tube surface, the fin is the arc, and the side of fin and the junction of top surface are equipped with the chamfer, the fin distributes in the flue gas ying liu district of parent tube. The utility model discloses an arc design has increased fin thickness, has improved the life of fin, has reduced the waste of material simultaneously to different work condition.
Description
Technical field
The utility model relates to high temperature field of heat exchange, is specially a kind of enhanced heat exchange arc extended surface tube.
Background technology
Extended surface tube is by fin is welded on heat exchanger tube surface, increases the heat exchange area of heat exchanger tube, reaches the object of enhanced heat exchange.The conventional extended surface tube of industry has H type extended surface tube, spiral finned tube etc., and the shortcoming that these extended surface tubes exist is that fin and heat exchanger tube Contact length are comparatively large, limits the thickness of fin, thus have that section of jurisdiction is thinner, wearability and the poor problem of corrosion resistance.For H type extended surface tube, the corner of extended surface tube is vulnerable to gouging abrasion installing and using in process, and the edge of flue gas fluoran stream surface is also vulnerable to the impact of smoke particle, and loss is serious.For the operating mode that He Beiliu district of flue gas Ying Liu district is different, existing extended surface tube is not distinguished it, causes the back of the body stream region material loss of extended surface tube to waste.
Chinese patent (application number 201220098497.1, authorized announcement date on October 10th, 2012) disclose one " H type extended surface tube ", comprise base tube, the two pieces of fins welded with base tube, two pieces of fin involutive distribution are in the both sides of base tube, the cross section of base tube is oval, and two pieces of fins are along oval major axis involutive distribution.This utility model, by adopting oval base tube, makes the fusion length between fin and base tube increase, thus improves finned tube Weld Performance, strengthens heat exchange efficiency.It still exists that tube wall thinly wears no resistance, the easy gouging abrasion of fin edge, flue gas leeward region fin loss waste problem.
Utility model content
The defect that the utility model exists for extended surface tube in current heat-exchanger rig, designed and developed a kind of enhanced heat exchange arc extended surface tube, solve that existing extended surface tube exists tube wall thinly wears no resistance, edge easily touches wearing and tearing and the problem of flue gas leeward region fin material waste.
For solving the problem, the utility model by the following technical solutions:
A kind of enhanced heat exchange arc extended surface tube, comprise the fin that base tube is vertical with base tube with being arranged on base tube outer surface, described fin is arc, and the side of fin and the junction of end face are provided with chamfering, and described fin is distributed in the flue gas Ying Liu district of base tube.
Further, described enhanced heat exchange arc extended surface tube, radial same cross section is distributed with 1 ~ 4 fin with described base tube, and described fin adopts horizontal staggered to arrange along base tube.
Further, described enhanced heat exchange arc extended surface tube, the thickness of described fin is more than 0.5 times of base tube pipe thickness.
Enhanced heat exchange arc extended surface tube as above, described base tube and extended surface tube adopt exotic material to make, and resistance to temperature value is more than 1000 DEG C.
Enhanced heat exchange arc extended surface tube as above, the upper end face of described extended surface tube is arc-shaped curved surface, and the central shaft of arc-shaped curved surface is positioned on the central axis of base tube.
Enhanced heat exchange arc extended surface tube as above, described chamfering is arc.
Enhanced heat exchange arc extended surface tube as above, the welding manner of described fin and base tube is automatic resistance welding.
The beneficial effects of the utility model are:
1, fin adopts arc-shaped flaky design, and thickness is more than 0.5 times of base tube pipe thickness, compares with existing extended surface tube, adds fin sheet thickness, improves wearability and the corrosion resistance of fin, extends the service life of extended surface tube.
2, the end face of fin and junction, side arrange rounded corners, decrease fin corner to install and use and touch wearing and tearing in process, prevent limit from scratching people, avoid smoke particle in extended surface tube heat transfer process simultaneously and, to the impact of fin edge and wearing and tearing, improve the anti-wear property of extended surface tube.
3, meet operating modes different in stream side and boiler furnace for flue gas, fin is arranged on the flue gas Ying Liu district of base tube, namely convenient processing, avoids again the leeward district fin loss because operating mode difference causes and waste of material.
4, the upper end face of fin is arc-shaped curved surface, and the central shaft of arc-shaped curved surface is positioned on the central axis of base tube, can strengthen the shape stability between base tube and fin, is beneficial to flue gas Uniform Flow; Arc fin adopts horizontal staggered to arrange, strengthens heat transfer medium disturbance, enhanced heat exchange.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is the radial section figure of Fig. 1;
Fig. 3 is the structural representation of embodiment two;
Fig. 4 is the structural representation of embodiment three;
Fig. 5 is the structural representation of embodiment four;
In figure, 1-fin, 11-side, 12-end face, 13-chamfering, 2-base tube, 21-flue gas Ying Liu district, 22-flue gas Bei Liu district.
Detailed description of the invention
Be below specific embodiment of the utility model, and by reference to the accompanying drawings the technical solution of the utility model be further described, but the utility model is not limited in these embodiments.
Embodiment one
As shown in Figure 1-2, a kind of enhanced heat exchange arc of the utility model extended surface tube, comprises the fin 1 that base tube 2 is vertical with base tube with being arranged on base tube 2 outer surface.Fin 1 is arc, and the thickness of fin is 0.9 times of base tube pipe thickness, and the one-tenth-value thickness 1/10 of fin specifically can be determined according to dust content and corrosion composition content herein.Compare with existing extended surface tube, enhanced heat exchange arc extended surface tube adds fin thickness, improves wearability and the corrosion resistance of fin.Side 11 and the junction of end face 12 of fin 1 are provided with the chamfering 13 of arc, prevent fin corner from touching wearing and tearing in process installing and using, avoid in heat transfer process that smoke particle is to the impact of fin corner, be Simplified flowsheet, rounded corners can be set to 45 ° herein.
Specifically, as shown in Figure 2, the same cross section of radial direction of base tube is symmetrically distributed with 2 arc fins, operating modes different in stream side and boiler furnace is met for flue gas, fin is arranged on the flue gas Ying Liu district 21 of base tube, the flue gas Bei Liu district 22 of heat exchanger tube does not arrange fin, so not only Simplified flowsheet but also avoid the waste causing material.Fin adopts horizontal staggered to arrange, the gap width of adjacent fin can require to determine according to the arrangement of actual heat exchange area and on-the-spot heat exchange area.Fin is staggered in arrangement along base tube axis direction, plays and strengthens heat transferring medium disturbance, the effect of enhanced heat exchange.The upper end face of extended surface tube is arc-shaped curved surface, and the central shaft of arc-shaped curved surface is positioned on the central axis of base tube, and such being designed with helps to strengthen the uniformity of shape stability between base tube and fin and flow of flue gas, increases heat convection effect.Enhanced heat exchange arc extended surface tube adopts exotic material to make, and as the non-oxidizabilitys such as nickel-chrome alloy steel and the higher material of corrosion resistance can be adopted to make, meets resistance to temperature value and reaches more than 1000 DEG C, to adapt to severe worst hot case.Carry out automatic resistance welding by enhanced heat exchange arc extended surface tube automatic welder(welding machine) between fin and base tube, to improve extended surface tube Weld Performance, strengthen heat exchange efficiency.
Embodiment two
As shown in Figure 3, the enhanced heat exchange arc extended surface tube architectural feature of the present embodiment is substantially identical with embodiment one, its difference is: for concrete heat transfer requirements and heat-exchanging state, and the same cross section of radial direction of base tube arranges 1 arc fin, and the flue gas Bei Liu district of base tube does not arrange fin.Compare embodiment one, this situation is applicable to small-sized heat transmission equipment, saves process materials, is convenient to arrange and processing.
Embodiment three
As shown in Figure 4, the enhanced heat exchange arc extended surface tube architectural feature of the present embodiment is substantially identical with embodiment one, its difference is: for concrete heat transfer requirements and heat-exchanging state, and the same cross section of radial direction of base tube arranges 3 arc fins, and the flue gas Bei Liu district of base tube does not arrange fin.Compare embodiment one and embodiment two, This embodiment increases thermal radiation area, be conducive to improving the thermal efficiency.
Embodiment four
As shown in Figure 5, the enhanced heat exchange arc extended surface tube architectural feature of the present embodiment is substantially identical with embodiment one, and its difference is: for concrete heat transfer requirements and heat-exchanging state, and the same cross section of radial direction of base tube arranges 4 arc fins.Compare front several embodiment, in this embodiment, fin adopts and is arranged symmetrically with on base tube, and the flue gas Bei Liu district of base tube is provided with fin, and thermal radiation area is large, and heating surface is relatively more even, and heat exchange efficiency is relatively high, but technique relative complex.
Claims (7)
1. an enhanced heat exchange arc extended surface tube, comprise base tube (2) fin vertical with base tube with being arranged on base tube outer surface (1), it is characterized in that, described fin (1) is arc, the side (11) of fin and the junction of end face (12) are provided with chamfering (13), and described fin is distributed in the flue gas Ying Liu district (21) of base tube.
2. enhanced heat exchange arc extended surface tube according to claim 1, is characterized in that, radial same cross section is distributed with 1 ~ 4 fin with described base tube (2), and described fin adopts horizontal staggered to arrange along base tube.
3. enhanced heat exchange arc extended surface tube according to claim 1, is characterized in that, the thickness of described fin (1) is more than 0.5 times of base tube pipe thickness.
4. enhanced heat exchange arc extended surface tube according to claim 1, is characterized in that, described base tube (2) and fin (1) adopt exotic material to make, and resistance to temperature value is more than 1000 DEG C.
5. enhanced heat exchange arc extended surface tube according to claim 1, is characterized in that, the upper end face of described fin (1) is arc-shaped curved surface, and the central shaft of arc-shaped curved surface is positioned on the central axis of base tube.
6. enhanced heat exchange arc extended surface tube according to claim 1, is characterized in that, described chamfering (13) is arc.
7. enhanced heat exchange arc extended surface tube according to claim 1, is characterized in that, described fin (1) is automatic resistance welding with the welding manner of base tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042273.9U CN205228244U (en) | 2015-12-14 | 2015-12-14 | Reinforce heat transfer arc extended surface tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042273.9U CN205228244U (en) | 2015-12-14 | 2015-12-14 | Reinforce heat transfer arc extended surface tube |
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| Publication Number | Publication Date |
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| CN205228244U true CN205228244U (en) | 2016-05-11 |
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| CN201521042273.9U Active CN205228244U (en) | 2015-12-14 | 2015-12-14 | Reinforce heat transfer arc extended surface tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775831A (en) * | 2018-07-25 | 2018-11-09 | 北京建筑大学 | A kind of butterfly finned tube exchanger preventing flue gas corrosion |
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2015
- 2015-12-14 CN CN201521042273.9U patent/CN205228244U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775831A (en) * | 2018-07-25 | 2018-11-09 | 北京建筑大学 | A kind of butterfly finned tube exchanger preventing flue gas corrosion |
| WO2020019627A1 (en) * | 2018-07-25 | 2020-01-30 | 北京建筑大学 | Heat exchanger with butterfly finned pipe |
| JP2021530668A (en) * | 2018-07-25 | 2021-11-11 | ベイジン ユニバーシティ オブ シビル エンジニアリング アンド アーキテクチャーBeijing University Of Civil Engineering And Architecture | Butterfly type fin tube heat exchanger |
| JP7236118B2 (en) | 2018-07-25 | 2023-03-09 | ベイジン ユニバーシティ オブ シビル エンジニアリング アンド アーキテクチャー | Butterfly Finned Tube Heat Exchanger |
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| C14 | Grant of patent or utility model | ||
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Address after: Beiguan Industrial Park, Jiaozhou city of Shandong Province, Qingdao City, Guizhou road 266300 No. 3 Patentee after: Qingdao Kai environmental Polytron Technologies Inc Address before: Beiguan Industrial Park, Jiaozhou city of Shandong Province, Qingdao City, Guizhou road 266300 No. 3 Patentee before: QINGDAO KAINENG BOILER EQUIPMENT CO., LTD. |