CN201297878Y - An inside and outside fin flat tube heat exchanger - Google Patents
An inside and outside fin flat tube heat exchanger Download PDFInfo
- Publication number
- CN201297878Y CN201297878Y CNU2008202221668U CN200820222166U CN201297878Y CN 201297878 Y CN201297878 Y CN 201297878Y CN U2008202221668 U CNU2008202221668 U CN U2008202221668U CN 200820222166 U CN200820222166 U CN 200820222166U CN 201297878 Y CN201297878 Y CN 201297878Y
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- flat tube
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Abstract
The utility model discloses an inside and outside fin flat tube heat exchanger, including a housing, a tube pass import and a tube pass export provided at both ends of the housing, two tube plates at both ends in the housing, heat exchange tubes in parallel fixation between the two tube plates, a plurality of baffle plates as well as a shell pass import and a shell pass on the lateral wall of the housing, wherein, the heat exchange tubes, the tube pass import and the tube pass export constitute a tube inside flow channel, baffle plates, the shell pass import and the shell pass export constitute a shell side flow channels, a plurality of outer fins are provided outside the heat exchange tubes; the heat exchange tube is composed of a flat tube and longitudinal corrugated inner fins provided inside the flat tube, and a plurality of longitudinal flow channels are provided between the flat tube and the inner fins provided inside the flat tube. By adding longitudinal inner fin plates in the traditional flat tube, the utility model can fully heat the high viscosity fluid in the heat exchange tube so that it has the same heat transfer structure and heat exchange performance with the plate-fin heat exchanger, and simultaneously has effectively improved bearing capability.
Description
Technical field
The utility model relates to a kind of heat exchanger, especially relates to a kind of internal and external fin flat tube heat exchanger.
Background technology
Heat exchanger is a kind of significant element equipment in the industry such as oil refining, chemical industry, environmental protection, the energy, electric power, usually in the construction in chemical plant, heat exchanger accounts for the 10-20% of gross investment, and at present, heat exchanger commonly used both at home and abroad can be divided into tubular type and board-like two big classes substantially.For the situation that gas converting heat is arranged, the general mode that increases fin that adopts is strengthened the heat exchange of gas side.Usually, plate-fin heat exchanger is widely used in gas-gas heat exchange, and fin-tube type heat exchanger is more is applied to the solution-air heat exchange.
For plate-fin heat exchanger, because of having the pricker jail, its part in the brazing filler metal process do not form weak link, thereby determined that plate-fin heat exchanger can not bear relative pressure higher under higher absolute pressure or the malfunction, therefore spalling takes place under limiting condition possibly, so that brings bigger economic loss and potential safety hazard.In addition, plate-fin heat exchanger is non-disconnectable, cleans difficulty, the manufacturing process complexity, and the cost height, thereby limited the use occasion of plate-fin heat exchanger.
Owing to be subjected to the influence of flat tube shell-and-tube heat exchanger structural design, developed the flat tube fin-tube type heat exchanger, promptly replace the pipe tube bank with the flat tube tube bank, thereby can make that heat exchange area is effectively improved, make its thermal efficiency near lamella heat exchanger, it can bear bigger pressure simultaneously, and process industry is simple.But for simple flat pipe heat exchanger, in petrochemical industry, the high viscosity fluid heats in the heat exchanger light pipe, fluid temperature (F.T.) is too high near tube wall often occurring, and in pipe centre fluid underheat, promptly fluid heats inhomogeneous, insufficient phenomenon, thereby influences the heat exchange efficiency of equipment.Therefore, necessaryly strengthen at the flowing heat transfer in the light pipe pipe.In addition, for fin-tube type heat exchanger, generally only increase fin in the heat exchanger tube outside, the pipe of pipe side face can bear higher absolute pressure, be applicable to occasion with high-pressure fluid running, and the range of application broad of operating pressure, as condenser, evaporimeter and air cooler etc., but the heat exchange area in its unit volume is lower with respect to plate-fin heat exchanger, and exchange capability of heat is lower than the exchange capability of heat of plate-fin heat exchanger.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of internal and external fin flat tube heat exchanger is provided, it is by increasing vertical inner fin plate in traditional flat tube, thereby can fully heat the high viscosity fluid in the heat exchanger tube, make its heat transfer structure and heat exchange property aspect suitable, simultaneously its bearing capacity is effectively improved with plate-fin heat exchanger.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of internal and external fin flat tube heat exchanger, comprise housing, be arranged on housing the tube side import and the tube side outlet at two ends up and down, lay respectively at two tube sheets at enclosure interior two ends, the a plurality of heat exchanger tubes of secured in parallel between two tube sheets, be arranged on a plurality of baffle plates that play fixedly heat exchanger tube and guide functions of enclosure interior and lay respectively at shell side import and shell side outlet on the housing sidewall, described heat exchanger tube is communicated with tube side import and tube side outlet and forms circulation passage in the pipe, described a plurality of baffle plate is communicated with shell side import and shell side outlet and forms a bow type baffle plate type shell-side circulation passage, described heat exchanger tube is outside equipped with a plurality of outer fins, it is characterized in that: described heat exchanger tube forms a plurality of longitudinal stream circulation passage by flat tube and the longitudinal ripple inner fin that is arranged on flat tube inside between described flat tube and its inner longitudinal ripple inner fin.
The quantity of described baffle plate is odd number, and described shell side import and shell side outlet are positioned at the homonymy of housing sidewall.
The bellows-shaped of described longitudinal ripple inner fin is the consecutive periods function.
The ripple of described longitudinal ripple inner fin is zigzag, rectangle or sinusoidal waveform.
Have a plurality of holes or many seams on the described longitudinal ripple inner fin continuously.
Described outer fin is flat continuous slab wing or corrugated continuous slab wing.
Have a plurality of holes or seam on described flat continuous slab wing or the corrugated continuous slab wing.
Long direction eddy generator or shutter are installed on described flat continuous slab wing or the corrugated continuous slab wing.
The utility model compared with prior art has the following advantages,, 1, rational in infrastructure, use easy to operate; 2, heat exchanger tube adopts flat tube, can increase the intraductal heat transfer area effectively, improves its heat transfer efficiency; In flat tube, add inner fin and then can increase the intraductal heat transfer area effectively, increased disturbance fluidly simultaneously, thereby make tube fluid be able to abundant heating, therefore, in flat tube, increase vertical inner fin plate and have remarkable result for heat conduction reinforced in the flat tube, thereby fully the high viscosity liquid in the heating tube makes it suitable with plate-fin heat exchanger aspect heat transfer structure and heat exchange property, and its bearing capacity also can be improved effectively simultaneously; 3, increase multi-form outer fin in the heat exchanger tube outside, make the exchange capability of heat in the heat exchanger tube outside also obtain reinforcement simultaneously, make the heat exchange area in the resultant heat exchanger unit volume be far longer than general fin-tube type heat exchanger like this, suitable with the heat exchange area in the plate-fin heat exchanger unit volume, thereby, the utility model has increased the heat exchange area of the inside and outside both sides of heat exchanger tube, thereby strengthened the heat convection of the inside and outside both sides of heat exchanger tube, the heat exchange density that makes resultant heat exchanger is much larger than general fin-tube type heat exchanger; 4, relative pressure higher under higher absolute pressure or the malfunction can be born, heat exchanger generation spalling can be effectively prevented.To sum up, the utility model can effectively increase the inside and outside heat exchange area of heat exchanger tube, the inside and outside heat convection of enhanced tube and intraductal heat transfer, make its exchange capability of heat can reach the peer-level of plate-fin heat exchanger, have clear superiority bearing aspect the high pressure to compare simultaneously with plate-fin; It is by increasing vertical inner fin plate in traditional flat tube, thereby can fully heat the high viscosity fluid in the heat exchanger tube, make its heat transfer structure and heat exchange property aspect suitable with plate-fin heat exchanger, simultaneously its bearing capacity is effectively improved, have and make simply, keep in repair and clean advantages such as convenient.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an assembly structure schematic diagram of the present utility model.
Fig. 2 is an internal structure schematic diagram of the present utility model.
Fig. 3 is the structural representation of the utility model heat exchanger tube.
Fig. 4 is the structural representation of the utility model longitudinal ripple inner fin.
The schematic perspective view that Fig. 5 is connected with the flat continuous slab wing that has shutter for the utility model heat exchanger tube.
Fig. 6 is the schematic perspective view that the flat continuous slab wing of the utility model heat exchanger tube and perforate is connected.
Fig. 7 is the schematic perspective view that the utility model heat exchanger tube is connected with corrugated continuous slab wing.
The schematic perspective view that Fig. 8 is connected with the flat continuous slab wing that cracks for the utility model heat exchanger tube.
The schematic perspective view that Fig. 9 is connected with the flat continuous slab wing that has long direction eddy generator for the utility model heat exchanger tube.
Description of reference numerals:
1-tube sheet; 2-heat exchanger tube; 3-baffle plate;
4-flat continuous slab wing; 5-housing; 6-flat tube;
7-longitudinal ripple inner fin; 9-corrugated continuous slab wing; 10-1-tube side import;
10-2-tube side outlet; 11-1-shell side import; 11-2-shell side outlet;
12-hole; 13-seam; 14-long direction eddy generator;
15-shutter; 17-through hole.
The specific embodiment
Embodiment 1
As shown in Figure 1 and Figure 2, the utility model comprises housing 5, be arranged on the tube side import 10-1 at housing two ends about in the of 5 and tube side outlet 10-2, two tube sheets 1 that lay respectively at housing 5 inner two ends, secured in parallel are in a plurality of baffle plates 3 of a plurality of heat exchanger tubes 2 between two tube sheets 1, the fixedly heat exchanger tube 2 that is arranged on housing 5 inside and guide functions and lay respectively at shell side import 11-1 and shell side outlet 11-2 on housing 5 sidewalls, and correspondence has a plurality of through holes 17 that are used to install heat exchanger tube 2 on its tube sheet 1.Wherein, described heat exchanger tube 2 is communicated with tube side import 10-1 and tube side outlet 10-2 and forms circulation passage in the pipe, described a plurality of baffle plate 3 is communicated with the shell-side circulation passage of forming a bow type baffle plate type with shell side import 11-1 and shell side outlet 11-2, and heat exchanger tube 2 is outside equipped with a plurality of outer fins.In addition, the quantity of described baffle plate 3 is odd number, and described shell side import 11-1 and shell side outlet 11-2 are positioned at the homonymy of housing 5 sidewalls.In the present embodiment, the quantity of baffle plate 3 is 7 and the staggered level board that is installed on housing 5 inwalls, and 7 baffle plates 3 are formed a baffle plate type circulation passage.In the actual use, the quantity of described baffle plate 3 also can be even number, and described shell side import 11-1 and shell side outlet 11-2 lay respectively at the both sides of housing 5 sidewalls.
In conjunction with Fig. 3, Fig. 4, described heat exchanger tube 2 forms a plurality of longitudinal stream circulation passage by flat tube 6 and the longitudinal ripple inner fin 7 that is arranged on flat tube 6 inside between described flat tube 6 and its inner longitudinal ripple inner fin 7.In addition, the bellows-shaped of described ripple is the consecutive periods function.In actual application, the dielectric viscosity that is circulated in the longitudinal ripple inner fin 7 is big more, and its ripple wavelength X sparse more and described ripple is big more, and the quantity of longitudinal stream circulation passage is few more.In the present embodiment, the bellows-shaped of longitudinal ripple inner fin 7 is a sinusoidal waveform, in the practice, can be other bellows-shaped such as zigzag or rectangle with its ripple processing and fabricating also.
In the actual use, after the heat exchanging fluid of pipe side enters from tube side import 10-1, passing a plurality of heat exchanger tubes 2 that are fixed on the tube sheet 1, specifically is to flow through from a plurality of longitudinal fin circulation passages that are distributed in heat exchanger tube 2 inside, is flowed out by tube side outlet 10-2 more at last.Owing in heat exchanger tube 2, be provided with longitudinal ripple inner fin plate 7, thereby greatly increased the heat transfer area in the heat exchanger tube 2, strengthened the fluid heat exchange of heat exchanger tube 2 inboards.
And flat continuous slab wing 4 and a plurality of baffle plate 3 are installed outside heat exchanger tube 2, flat continuous slab wing 4 is used for increasing the heat exchange area of shell-side, to strengthen the exchange capability of heat of shell-side.In the actual use, after the heat exchanging fluid of its shell-side entered from shell side import 11-1, transversal flow heat exchanger tube 2 under the guiding of baffle plate 3 was finished behind the heat transfer process and is flowed out from shell side outlet 11-2.
To sum up, because heat exchanger tube 2 inside and outside both sides all are added with fin, thereby can effectively increase heat exchange area, and the exchange capability of heat of efficient hardening both sides heat exchanging fluid; In addition,, thereby can make that heat exchange area is effectively improved, make its thermal efficiency near lamella heat exchanger because adopt the carrier of flat tube 6 as heat exchanger tube 2 inside and outside both sides fins.That is to say, the utility model is by increasing vertical inner fin plate in traditional flat tube 6, thereby can fully heat the high viscosity fluid in the heat exchanger tube 2, make its heat transfer structure and heat exchange property aspect suitable, simultaneously its bearing capacity be effectively improved with plate-fin heat exchanger.
The difference of present embodiment and embodiment 1 is, has a plurality of holes 12 on the heat exchanger tube 2 outer flat continuous slab wings of installing 4, as shown in Figure 6; Have a plurality of seams 13 on the perhaps flat continuous slab wing 4, as shown in Figure 8; A plurality of shutters 15 are installed, as shown in Figure 5 on the perhaps flat continuous slab wing 4; A plurality of long direction eddy generators 14 are installed, as shown in Figure 9 on the perhaps flat continuous slab wing 4.In actual application, flow through when the heat exchanging fluid of shell-side and to have hole 12 or to stitch 13, when the flat continuous slab wing 4 of long direction eddy generator 14 or shutter 15 perhaps is installed, the disturbance that fluid flows further increases, thereby it flows and the heat exchange boundary layer has obtained destroying effectively and attenuate, thereby improved the exchange capability of heat of shell-side, the heat exchange property of heat exchanger is further improved.During actual processing and fabricating, also can all have hole 12 in the both sides up and down of flat continuous slab wing 4 or stitch 13, perhaps descend both sides that long direction eddy generator 14 or shutter 15 all are installed thereon.
As shown in Figure 7, the difference of present embodiment and embodiment 1 is that the heat exchanger tube 2 outer outer fins of installing are corrugated continuous slab wing 9, and the 26S Proteasome Structure and Function of remainder is all identical with embodiment 1.Owing to outside the heat exchanger tube 2 corrugated continuous slab wing 9 is installed, thereby the shell-side heat exchanging fluid is mobile in the formed small space between corrugated continuous slab wing 9, thereby has further increased the disturbance that fluid flows, make the exchange capability of heat of shell-side increase.Like this, corrugated fin is installed all inside and outside heat exchanger tube 2, is improving heat exchange area and increasing disturbance, further in the reinforcing heat exchange capability, also further improve the bearing capacity of heat exchanger integral body.In addition,, also can on corrugated continuous slab wing 9, have a plurality of holes 12 or stitch 13, a plurality of long direction eddy generators 14 or shutter 15 perhaps are installed with embodiment 2.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (8)
1. internal and external fin flat tube heat exchanger, comprise housing (5), be arranged on housing (5) the tube side import (10-1) and the tube side outlet (10-2) at two ends up and down, lay respectively at two tube sheets (1) at the inner two ends of housing (5), the a plurality of heat exchanger tubes (2) of secured in parallel between two tube sheets (1), be arranged on housing (5) inner play fixedly heat exchanger tube (2) and a plurality of baffle plates (3) of guide functions and shell side import (11-1) and the shell side that lays respectively on housing (5) sidewall exports (11-2), described heat exchanger tube (2) is communicated with tube side import (10-1) and tube side outlet (10-2) and forms circulation passage in the pipe, described a plurality of baffle plate (3) is communicated with shell side import (11-1) and shell side outlet (11-2) and forms a bow type baffle plate type shell-side circulation passage, described heat exchanger tube (2) is outside equipped with a plurality of outer fins, it is characterized in that: described heat exchanger tube (2) is by flat tube (6) and be arranged on the inner longitudinal ripple inner fin (7) of flat tube (6), forms a plurality of longitudinal stream circulation passage between described flat tube (6) and its inner longitudinal ripple inner fin (7).
2. according to the described internal and external fin flat tube heat exchanger of claim 1, it is characterized in that: the quantity of described baffle plate (3) is odd number, and described shell side import (11-1) and shell side outlet (11-2) are positioned at the homonymy of housing (5) sidewall.
3. according to claim 1 or 2 described internal and external fin flat tube heat exchangers, it is characterized in that: the bellows-shaped of described longitudinal ripple inner fin (7) is the consecutive periods function.
4. according to claim 1 or 2 described internal and external fin flat tube heat exchangers, it is characterized in that: the ripple of described longitudinal ripple inner fin (7) is zigzag, rectangle or sinusoidal waveform.
5. according to claim 1 or 2 described internal and external fin flat tube heat exchangers, it is characterized in that: have a plurality of holes or many seams on the described longitudinal ripple inner fin (7) continuously.
6. according to claim 1 or 2 described internal and external fin flat tube heat exchangers, it is characterized in that: described outer fin is flat continuous slab wing (4) or corrugated continuous slab wing (9).
7. according to the described internal and external fin flat tube heat exchanger of claim 6, it is characterized in that: have a plurality of holes (12) or seam (13) on described flat continuous slab wing (4) or the corrugated continuous slab wing (9).
8. according to the described internal and external fin flat tube heat exchanger of claim 6, it is characterized in that: described flat continuous slab wing (4) or corrugated continuous slab wing (9) are gone up long direction eddy generator (14) or shutter (15) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202221668U CN201297878Y (en) | 2008-10-30 | 2008-10-30 | An inside and outside fin flat tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202221668U CN201297878Y (en) | 2008-10-30 | 2008-10-30 | An inside and outside fin flat tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297878Y true CN201297878Y (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202221668U Expired - Fee Related CN201297878Y (en) | 2008-10-30 | 2008-10-30 | An inside and outside fin flat tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297878Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644686A (en) * | 2013-12-24 | 2014-03-19 | 上海环球制冷设备有限公司 | Efficient tube-fin-type condenser device and using method thereof |
| CN105352346A (en) * | 2015-11-25 | 2016-02-24 | 张伟 | Header shell pressure bearing heat exchanger |
| CN109000488A (en) * | 2017-09-14 | 2018-12-14 | 华北电力大学 | A kind of dot matrix heat exchanger |
| CN112361373A (en) * | 2020-11-08 | 2021-02-12 | 驭能环保设备(北京)有限公司 | Double-ribbed-tube full-counter-flow type flue gas condensation-air preheating system |
-
2008
- 2008-10-30 CN CNU2008202221668U patent/CN201297878Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644686A (en) * | 2013-12-24 | 2014-03-19 | 上海环球制冷设备有限公司 | Efficient tube-fin-type condenser device and using method thereof |
| CN105352346A (en) * | 2015-11-25 | 2016-02-24 | 张伟 | Header shell pressure bearing heat exchanger |
| CN109000488A (en) * | 2017-09-14 | 2018-12-14 | 华北电力大学 | A kind of dot matrix heat exchanger |
| CN109000488B (en) * | 2017-09-14 | 2024-05-28 | 华北电力大学 | Dot matrix heat exchanger |
| CN112361373A (en) * | 2020-11-08 | 2021-02-12 | 驭能环保设备(北京)有限公司 | Double-ribbed-tube full-counter-flow type flue gas condensation-air preheating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20111030 |