CN201449186U - Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe - Google Patents
Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe Download PDFInfo
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- CN201449186U CN201449186U CN 200920033890 CN200920033890U CN201449186U CN 201449186 U CN201449186 U CN 201449186U CN 200920033890 CN200920033890 CN 200920033890 CN 200920033890 U CN200920033890 U CN 200920033890U CN 201449186 U CN201449186 U CN 201449186U
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Abstract
The utility model discloses an inner/outer spiral fin type cross-flow heat exchanger of a heat transferring pipe, which comprises a shell body, a pipe pass inlet, a pipe pass outlet, two pipe plates, a heat transferring pipe bundle, a shell pass inlet and a shell pass outlet. The pipe pass inlet and the pipe pass outlet are arranged at the upper and lower ends of the shell body, the two pipe plates are respectively arranged at the two internal ends of the shell body, the heat transferring pipe bundle which is composed of a plurality of heat transferring pipes is fixed between the two pipe plates in parallel, and the shell pass inlet and the shell pass outlet are arranged at the middle parts at the left and right sides of the shell body. The heat transferring pipes are communicated with the pipe pass inlet and the pipe pass outlet to form a pipe-in circulating channel. Each heat transferring pipe comprises an outer pipe, a core pipe and an inner fin; the inner fin which is embedded around a pipe core is arranged between the outer pipe and the core pipe; longitudinal spiral outer fins which are arranged outside the heat transferring pipes are communicated with the shell pass inlet and the shell pass outlet to form a spiral type shell-side circulating channel, and the flowing direction of the pipe-in circulating channel is vertical to that of the spiral type shell-side circulating channel. The inner/outer spiral fin type cross-flow heat exchanger has the following characteristics: the structural design is reasonable, and the using operation is convenient; under the premise of meeting the reinforced heat transferring requirements, the heat exchanger can effectively reduce the increasing of the flowing resistance in the pipes; moreover, the heat exchanger has high pressure bearing capacity.
Description
Technical field
The utility model relates to a kind of heat-exchange apparatus that is used for gas-gas heat exchange, especially relates to the finned cross-flow heat exchanger of a kind of heat-transfer pipe internal and external screw.
Background technology
The cross flow heat exchanger is a kind of principal mode in the dividing wall type heat exchanger, can be divided into types such as bundled tube, fin-tube type, corrugated tube type and plate-fin according to the difference of heat exchange surface structure.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, and block board thickness is quite little, determined that plate-fin heat exchanger can not bear relative pressure higher under higher absolute pressure or the malfunction, spalling can take place under limiting condition, bring bigger economic loss and potential safety hazard, this has just limited the use occasion of plate-fin heat exchanger.And for fin-tube type heat exchanger, generally only increase fin in the heat-transfer pipe 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, provide a kind of heat-transfer pipe internal and external screw finned cross-flow heat exchanger, its reasonable in design and use easy to operate, under the prerequisite that satisfies the augmentation of heat transfer requirement, flow resistance increase in the pipe can be effectively reduced, and the requirement of bearing higher relative pressure under higher absolute pressure or the malfunction can be satisfied.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the finned cross-flow heat exchanger of a kind of heat-transfer pipe internal and external screw, comprise housing, be arranged on housing up and down the tube side import at two ends and heating surface bank and shell side import that lays respectively at middle part, the housing sidewall left and right sides and the shell side outlet that tube side outlet, two tube sheets that lay respectively at the enclosure interior two ends, a plurality of heat-transfer pipes of secured in parallel between two tube sheets are formed, described heat-transfer pipe is communicated with tube side import and tube side outlet to form manages interior circulation passage; Described heat-transfer pipe comprise the core pipe of the outer tube that wears with one heart and obstruction and at the two spaced winding tube core around the inner fin that is embedded, it is characterized in that: described heat-transfer pipe is outside equipped with the outer fin of longitudinal spiral, the outer fin of described longitudinal spiral is communicated with shell side import and shell side outlet and forms spiral shell-side circulation passage, and the flow direction of circulation passage and spiral shell-side circulation passage is perpendicular in the described pipe.
The outer fin of the outer set longitudinal spiral of described a plurality of heat-transfer pipe is for being staggered.
Described inner fin is formed by the bending of ripple inner fin plate and it forms a columned longitudinal spiral formula internally finned tube between outer tube and core pipe, is distributed with a plurality of longitudinal spiral formula circulation passages on the described longitudinal spiral formula internally finned tube.
The shape of cross section of the outer fin of described longitudinal spiral is rectangle, triangle or trapezoidal.
The lines and the angle between horizontal direction of described ripple inner fin Lamb wave line are α, wherein 15 °≤α≤85 °; The bellows-shaped of described ripple is the consecutive periods function, and its vertical panel height equates with spacing between outer tube and the core pipe;
The dielectric viscosity that is circulated in the described inner fin is big more, and the ripple of described ripple inner fin plate is sparse more, and the wavelength X of described ripple is big more, and the quantity of described longitudinal spiral formula circulation passage is few more, and α is big more.
The ripple of described ripple inner fin plate is zigzag, rectangle or sinusoidal waveform.
Described ripple inner fin plate is the punching fin plate.
Have a plurality of holes or many seams continuously on the outer fin of described longitudinal spiral.
The utility model compared with prior art has the following advantages:
1, rational in infrastructure, use easy to operate.
2, heat-transfer pipe adopts the heat-transfer pipe that is provided with the internal and external screw fin, can increase the intraductal heat transfer area effectively, improves the field synergistic fruit of the inside and outside convection heat transfer' heat-transfer by convection of pipe simultaneously, improves its complex heat transfer efficient; And omitted shell-side arc type deflection plate, make the structure of heat exchanger obtain simplification to a certain degree.
3, increase in the heat-transfer pipe of the cross-flow heat exchanger outside outside the longitudinal spiral after the fin, make and all be provided with the longitudinal spiral fin inside and outside the heat-transfer pipe, thereby make the convection heat transfer' heat-transfer by convection ability of heat-transfer pipe both sides obtain reinforcement simultaneously, make the heat exchange area in the unit volume of resultant heat exchanger be far longer than general fin-tube type heat exchanger like this, suitable with heat exchange area in the plate-fin heat exchanger unit volume.Therefore, the utility model can reach the level of plate-fin heat exchanger aspect exchange capability of heat, and compare the advantage of having more with plate-fin aspect the high pressure bearing, because the heat-transfer pipe that inside and outside fin is separated can bear pipe side high pressure, shell pressure is then born by housing.
In sum, the utility model provides a kind of novel heat-transfer pipe internal and external screw finned cross-flow heat exchanger, increased the heat exchange area of the inside and outside both sides of pipe, increase the perturbation of the inside and outside flow velocity convection current of pipe simultaneously, strengthen the heat convection of both sides, the heat exchange density that makes resultant heat exchanger is much larger than general fin-tube type heat exchanger, suitable with plate-fin heat exchanger heat exchange density, aspect exchange capability of heat near the level of plate-fin heat exchanger, simultaneously relative pressure higher under higher absolute pressure or the malfunction can be born, thereby heat exchanger generation spalling can be effectively prevented.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the external structure schematic diagram of the utility model heat-transfer pipe.
Fig. 3 adopts the overall structure schematic diagram of ripple inner fin plate for the utility model.
Fig. 4 is the internal structure schematic diagram of the utility model heat-transfer pipe.
Fig. 5 is the heat-transfer pipe external structure schematic diagram of perforate on the outer fin of the utility model longitudinal spiral.
The heat-transfer pipe external structure schematic diagram of Fig. 6 for cracking on the outer fin of the utility model longitudinal spiral.
Description of reference numerals:
The 1-tube sheet; The 2-heat-transfer pipe; The outer fin of 3-longitudinal spiral;
The 4-through hole; The 5-housing; The 6-outer tube;
The 7-inner fin; 8-core pipe; The import of 10-1-tube side;
The outlet of 10-2-tube side; The import of 11-1-shell side; The outlet of 11-2-shell side;
The 12-hole; The 13-seam.
The specific embodiment
As Fig. 1, shown in Figure 2, the utility model comprises housing 5, be arranged on the tube side import 10-1 and the tube side outlet 10-2 at housing two ends about in the of 5, lay respectively at two tube sheets 1 at housing 5 inner two ends, heating surface bank that a plurality of heat-transfer pipes 2 of secured in parallel between two tube sheets 1 are formed and the shell side import 11-1 that lays respectively at middle part, the housing 5 sidewall left and right sides and shell side outlet 11-2, described heat-transfer pipe 2 is communicated with tube side import 10-1 and tube side outlet 10-2 and forms circulation passage in the pipe. and described heat-transfer pipe 2 comprises that the concentric outer tube that wears 6 is outside equipped with fin 3 outside the longitudinal spiral with the core pipe 8 that stops up and at the two spaced winding tube core around the inner fin 7. described heat-transfer pipes 2 that are embedded, the outer fin 3 of described longitudinal spiral is communicated with shell side import 11-1 and shell side outlet 11-2 and forms spiral shell-side circulation passage, and the flow direction of circulation passage and spiral shell-side circulation passage is perpendicular in the described pipe. and the outer fin 3 of described a plurality of heat-transfer pipe 2 outer set longitudinal spirals is for being staggered.
In conjunction with Fig. 3, Fig. 4, described heat-transfer pipe 2 comprise the outer tube 6 that wears with one heart and core pipe 8 and at the two spaced winding tube core around the inner fin 7 that is embedded, its inner fin 7 is formed by the bending of ripple inner fin plate and form a columned longitudinal spiral formula internally finned tube between outer tube 6 and core pipe 8, is distributed with a plurality of longitudinal spiral formula circulation passages on the described longitudinal spiral formula internally finned tube.In addition, the lines and the angle between horizontal direction of ripple inner fin Lamb wave line are α, wherein 15 °≤α≤85 °; The bellows-shaped of described ripple is the consecutive periods function, and its vertical panel height equates with spacing between outer tube 6 and the core pipe 8, and adopts soldering to be connected between described inner fin 7 and outer tube 6 and the core pipe 8, and simultaneously, core pipe 8 is a blocked core-tube.In actual application, the dielectric viscosity that is circulated in the inner fin 7 is big more, and the ripple of described ripple inner fin plate is sparse more, and the wavelength X of described ripple is big more, and the quantity of longitudinal spiral formula circulation passage is few more, and α is big more.In the present embodiment, the ripple of ripple inner fin plate is a sinusoidal waveform, in the practice, can be other bellows-shaped such as zigzag or rectangle with the ripple processing and fabricating of ripple inner fin plate also.In the present embodiment, described ripple inner fin plate is the punching fin plate.
During actual processing and fabricating, the outer fin 3 of described a plurality of heat-transfer pipes 2 outer set longitudinal spirals is for over against arranging or being staggered.The shape of cross section of the outer fin 3 of described a plurality of longitudinal spiral is rectangle, triangle or trapezoidal, during processing and fabricating, can be as required the cross section ripple of the outer fin 3 of longitudinal spiral be made as corresponding shape.In addition, have a plurality of holes 12 or many seams 13 on the outer fin 3 of described longitudinal spiral continuously, see Fig. 5 and Fig. 6 for details.In addition, when circulation dielectric viscosity when bigger, the outer fin 3 of longitudinal spiral adopts single-screw or double-spiral structures; And when the dielectric viscosity of circulation hour, then the outer fin 3 of longitudinal spiral can the many helical structures of corresponding employing.In the present embodiment, the outer fin 3 of longitudinal spiral is a single coil configuration.
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. finned cross-flow heat exchanger of heat-transfer pipe internal and external screw, comprise housing (5), be arranged on housing (5) heating surface bank and shell side import (11-1) that lays respectively at middle part, housing (5) the sidewall left and right sides and the shell side outlet (11-2) formed of the tube side import (10-1) at two ends and tube side outlet (10-2), two tube sheets (1) that lay respectively at the inner two ends of housing (5), a plurality of heat-transfer pipes (2) of secured in parallel between two tube sheets (1) up and down, described heat-transfer pipe (2) is communicated with composition and manages interior circulation passage with tube side import (10-1) and tube side outlet (10-2); Described heat-transfer pipe (2) comprise the outer tube (6) that wears with one heart and the core pipe (8) that stops up and at the two spaced winding tube core around the inner fin that is embedded (7), it is characterized in that: described heat-transfer pipe (2) is outside equipped with the outer fin (3) of longitudinal spiral, the outer fin (3) of described longitudinal spiral is communicated with shell side import (11-1) and shell side outlet (11-2) and forms spiral shell-side circulation passage, and the flow direction of circulation passage and spiral shell-side circulation passage is perpendicular in the described pipe.
2. according to the finned cross-flow heat exchanger of the described a kind of heat-transfer pipe internal and external screw of claim 1, it is characterized in that: the outer fin (3) of the outer set longitudinal spiral of described a plurality of heat-transfer pipes (2) is for being staggered.
3. according to claim 1 or the finned cross-flow heat exchanger of 2 described a kind of heat-transfer pipe internal and external screws, it is characterized in that: described inner fin (7) is formed by the bending of ripple inner fin plate and it forms a columned longitudinal spiral formula internally finned tube between outer tube (6) and core pipe (8), is distributed with a plurality of longitudinal spiral formula circulation passages on the described longitudinal spiral formula internally finned tube.
4. according to claim 1 or the finned cross-flow heat exchanger of 2 described a kind of heat-transfer pipe internal and external screws, it is characterized in that: the shape of cross section of the outer fin (3) of described longitudinal spiral is rectangle, triangle or trapezoidal.
5. according to the finned cross-flow heat exchanger of the described a kind of heat-transfer pipe internal and external screw of claim 3, it is characterized in that: the lines and the angle between horizontal direction of described ripple inner fin Lamb wave line are α, wherein 15 °≤α≤85 °; The bellows-shaped of described ripple is the consecutive periods function, and its vertical panel height equates with spacing between outer tube (6) and the core pipe (8);
The dielectric viscosity that is circulated in the described inner fin (7) is big more, and the ripple of described ripple inner fin plate is sparse more, and the wavelength X of described ripple is big more, and the quantity of described longitudinal spiral formula circulation passage is few more, and α is big more.
6. according to the finned cross-flow heat exchanger of the described a kind of heat-transfer pipe internal and external screw of claim 3, it is characterized in that: the ripple of described ripple inner fin plate is zigzag, rectangle or sinusoidal waveform.
7. according to the finned cross-flow heat exchanger of the described a kind of heat-transfer pipe internal and external screw of claim 3, it is characterized in that: described ripple inner fin plate is the punching fin plate.
8. according to claim 1 or the finned cross-flow heat exchanger of 2 described a kind of heat-transfer pipe internal and external screws, it is characterized in that: have a plurality of holes (12) or many seams (13) continuously on the outer fin (3) of described longitudinal spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920033890 CN201449186U (en) | 2009-07-14 | 2009-07-14 | Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920033890 CN201449186U (en) | 2009-07-14 | 2009-07-14 | Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449186U true CN201449186U (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920033890 Expired - Fee Related CN201449186U (en) | 2009-07-14 | 2009-07-14 | Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449186U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679757A (en) * | 2012-05-29 | 2012-09-19 | 苏州市金翔钛设备有限公司 | High-efficiency tower-top condenser |
| CN105261449A (en) * | 2015-10-23 | 2016-01-20 | 吉林大学 | Oil-cooled transformer with bundle-type radiator |
| CN110864566A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Design method for balanced flow of heat exchanger with variable pipe diameter |
| CN111089500A (en) * | 2020-01-19 | 2020-05-01 | 诸暨利心输送机械科技有限公司 | Heat exchanger for utilizing and treating waste gas |
| 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 |
-
2009
- 2009-07-14 CN CN 200920033890 patent/CN201449186U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679757A (en) * | 2012-05-29 | 2012-09-19 | 苏州市金翔钛设备有限公司 | High-efficiency tower-top condenser |
| CN105261449A (en) * | 2015-10-23 | 2016-01-20 | 吉林大学 | Oil-cooled transformer with bundle-type radiator |
| CN110864566A (en) * | 2018-07-20 | 2020-03-06 | 山东大学 | Design method for balanced flow of heat exchanger with variable pipe diameter |
| CN111089500A (en) * | 2020-01-19 | 2020-05-01 | 诸暨利心输送机械科技有限公司 | Heat exchanger for utilizing and treating waste gas |
| 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: 20100505 Termination date: 20110714 |