CN106440882A - Trapezoidal tilted baffle plate shell and tube type heat exchanger - Google Patents
Trapezoidal tilted baffle plate shell and tube type heat exchanger Download PDFInfo
- Publication number
- CN106440882A CN106440882A CN201611043880.6A CN201611043880A CN106440882A CN 106440882 A CN106440882 A CN 106440882A CN 201611043880 A CN201611043880 A CN 201611043880A CN 106440882 A CN106440882 A CN 106440882A
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- Prior art keywords
- trapezoidal
- class
- heat exchanger
- deflection plate
- tube
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/1607—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a trapezoidal tilted baffle plate shell and tube type heat exchanger. The exchanger comprises a shell body, heat exchange tubes, tube sheets, pull rods and trapezoidal baffle plates. Two groups of adjacent trapezoidal baffle plates are in perpendicular arrangement. Each group of trapezoidal baffle plates includes at least tow parallel trapezoidal baffle plates. The trapezoidal baffle plate is provided with a plurality of evenly distributed holes for mounting the heat exchange tubes correspondingly, which pass through the holes. The trapezoidal baffle plates are placed in a tilted mode. The rims of the trapezoidal baffle plates are provided with evenly distributed tube fixing holes for mounting the pull rods correspondingly which pass through the tube fixing holes. The pull rods are covered by the tube distance fixers in a sleeve mode. The tube distance fixers are fixed to the pull rods by bolts. The heat exchanger has the advantage of being able to effectively enhance the heat exchanging efficiency, being easily processed, and having broad application prospect.
Description
Technical field
The present invention relates to field of heat exchangers is and in particular to a species trapezoidal inclined baffle shell-and-tube heat exchanger.
Background technology
With economic and industry fast development, countries in the world are faced with energy starved problem, so how efficiently profit
It is the focus of various countries' people's growing interest with the existing energy.Wherein, heat exchanger can not only reasonable adjusting processing medium temperature
To meet the needs of technological process, it is also waste heat, the efficient apparatus of Waste Heat Recovery utilization.At present, apply wide heat exchanger
For shell-and-tube heat exchanger.However, because reasons in structure causes shell side to there is larger flow dead and along journey pressure drop.
In order to solve the above problems, in recent years, industry develops the novel pipe shell type heat exchange that some use helical baffles
Device, helical baffles make shell fluid flow in the shape of a spiral, thus overcoming the shortcoming of segmental baffle board heat exchangerses, not only reduce
Flow resistance, and promote augmentation of heat transfer.For example, the continuous helical deflecting plate heat exchange of existing a kind of employing continuous curve surface
For device, relatively segmental baffle board heat exchangerses, this kind of heat exchanger can effectively reduce flow resistance and leakage current.But, continuous spiral shell
The processing technique of rotation baffle heat exchanger is complex, is difficult to produce.
Content of the invention
The purpose of the present invention is for the deficiencies in the prior art, thus provide that a kind of flow resistance is little, heat exchange efficiency is high and
Class easy to process trapezoidal inclined baffle shell-and-tube heat exchanger.
One species trapezoidal inclined baffle shell-and-tube heat exchanger, including housing, heat exchanger tube, tube sheet, pull bar and multigroup class ladder
Shape deflection plate, the adjacent trapezoidal deflection plate quadrature arrangement of class described in two groups, every group includes at least two parallel trapezoidal bafflings of class
Plate, if the uniform dry hole of the corresponding described heat exchanger tube of the trapezoidal deflection plate of described class, described heat exchanger tube passes through the setting of described hole, described class ladder
Shape deflection plate is obliquely installed；The trapezoidal deflection plate of described class is fixed by pull bar, passes through distance sink tube fixed between all kinds of trapezoidal deflection plates
Away from.
Based on above-mentioned, the trapezoidal deflection plate of described class with described heat exchanger tube angle is, 20 °≤≤70°.
Based on above-mentioned, every group includes the trapezoidal deflection plate of two classes, and the trapezoidal deflection plate of described class is from major axis two by ellipse
End cuts a height of respectivelyWith a height ofCambered plate be obtained；Wherein R is the radius of described housing, described ellipse
The major axis of plectane is, short axle is 2R.
Based on above-mentioned, in every group, the trapezoidal baffle(s) spacing of described class is.
Based on above-mentioned, every group includes the trapezoidal deflection plate of three classes, and the trapezoidal deflection plate of class in the middle of every group is by from major axis two
The summit at end cuts a height of respectivelyCambered plate be obtained；The trapezoidal deflection plate of class in the middle of every group be by ellipse from
The summit at major axis two ends cuts a height of respectivelyWith a height ofCambered plate be obtained；Wherein R is described shell
The radius of body, the major axis of described ellipse is, short axle is 2R.
Based on above-mentioned, in every group, the trapezoidal baffle(s) spacing of described class is.
Parallel or be arranged symmetrically based on above-mentioned, the alternate trapezoidal deflection plate of class described in two groups.
Based on above-mentioned, described heat exchanger tube passes through described hole and the angle with the trapezoidal deflection plate of described classFor 45 °.
Hinge structure of the present invention has substantive distinguishing features and progress, and specifically, the present invention has advantages below：
1. the adjacent trapezoidal deflection plate quadrature arrangement of class described in two groups is so that shell-side fluid is in the trapezoidal deflection plate of class described in a group
After a direction flowing, flowing through next group trapezoidal inclined baffle of described class again with other direction flowing, this continuous week
The change fluid flow direction of phase property, strengthens the mixed degree of shell-side fluid ginseng, to shell-side fluid disturbance effect substantially, increases shell side stream
The mean flow rate of body and less turbulence, improve heat exchange efficiency, and the trapezoidal deflection plate obliquely flow of described class simultaneously is compared to arch
The horizontal mobility of deflection plate reduces flow resistance, and shell-side pressure drop is greatly reduced, and overcomes continuous in terms of processing and manufacturing
The shortcoming of spiral baffle heat exchanger not easy processing.
2. through heat exchanger numerical simulation calculation, when shell side mass flow is 3.5kg/s～16kg/s, the present invention
The trapezoidal baffle heat exchanger of class compare segmental baffle board heat exchangerses, pressure drop reduces by 24.7%～36.6%, and the coefficient of heat transfer improves
1.3%～2.4%, the coefficient of heat transfer under unit shell-side pressure drop improves 26.8%～36.9%；With heat exchanger with continuous helical baffle plates phase
Pressure drop reduces by 23%～32.9% to ratio, and the coefficient of heat transfer reduces by 1.6%～2.1%, and the coefficient of heat transfer under unit shell-side pressure drop improves
20.5%～30%, therefore, the trapezoidal baffle heat exchanger of class of the present invention can effectively reduce pressure drop, improves the coefficient of heat transfer and comprehensive
Energy.
3. the trapezoidal deflection plate of class described in two adjacent groups quadrature arrangement, the trapezoidal deflection plate of described class is fixed by pull bar, all kinds of
Pass through distance sink tube spacing between trapezoidal deflection plate, heat pipe can be exchanged and be supported on horizontal and vertical position and position, keep away
Exempt from the damage causing due to vibration heat exchanger.
Brief description
Fig. 1 is the internal structure schematic diagram of class trapezoidal inclined baffle shell-and-tube heat exchanger in embodiment 1.
Fig. 2 is the front view of the trapezoidal deflection plate of one group of class.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the structural representation of the trapezoidal deflection plate quadrature arrangement of class described in two adjacent groups in embodiment 1.
Fig. 5 is the structural representation of the trapezoidal Lourver position relation of continuous four groups of classes in expression embodiment 1.
Fig. 6 is the producing principle figure of the trapezoidal deflection plate of class.
Fig. 7 is the structural representation of the trapezoidal Lourver position relation of continuous four groups of classes in expression embodiment 2.
Fig. 8 is the internal structure schematic diagram of class trapezoidal inclined baffle shell-and-tube heat exchanger in embodiment 3.
Fig. 9 is the flow regime schematic diagram that in embodiment 1, shell-side fluid flows through when the trapezoidal deflection plate of class described in a group moves.
In figure：1. heat exchanger tube；2. the trapezoidal deflection plate of class；3. a class cambered plate；4. two class cambered plate；5. hole.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.
Embodiment 1
The present embodiment provide a species trapezoidal inclined baffle shell-and-tube heat exchanger, including housing, heat exchanger tube 1, tube sheet, pull bar and
The trapezoidal deflection plate of class 2, as shown in Fig. 1～5, adjacent two groups of class trapezoidal deflection plate 2 quadrature arrangement, the alternate trapezoidal folding of two groups of classes
Stream plate 2 is arranged in parallel, and every group includes the trapezoidal deflection plate 2 of two parallel classes, and the trapezoidal deflection plate 2 of described class corresponds to described heat exchanger tube
If 1 uniform dry hole 5, described heat exchanger tube 1 is arranged through described hole 5, and the trapezoidal deflection plate 2 of described class is obliquely installed, and described class is trapezoidal
Deflection plate 2 and described heat exchanger tube 1 angle=45 °, shell-side fluid flows through flow regime during the trapezoidal deflection plate 2 of class described in a group
Schematic diagram, as shown in figure 9, shell-side fluid, after the trapezoidal deflection plate of class described in a group 2 is flowed with a direction, is flowing through next group
The trapezoidal inclined baffle of described class 2 with other direction flowing, the change fluid flow direction of this continuous cycles, strengthens shell again
The mixed degree of Cheng Liuti ginseng, to shell-side fluid disturbance effect substantially, increases mean flow rate and the less turbulence of shell-side fluid, improves
Heat exchange efficiency.
The trapezoidal deflection plate 2 of described class is fixed by pull bar, passes through distance sink tube spacing between all kinds of trapezoidal deflection plates 2, described
The corresponding described pull bar in the trapezoidal deflection plate of class 2 edge is evenly equipped with fixed tube hole, and described pull bar passes through described fixed tube hole and described housing card
Connect, described rod outer sleeve has distance sink tube, described distance sink tube is bolted on described pull bar, heat pipe 1 can be exchanged in horizontal stroke
To with lengthwise position on be supported and position, it is to avoid the damage being caused due to vibration heat exchanger.
In every group, described class trapezoidal deflection plate 1 spacing is, as shown in fig. 6, the trapezoidal deflection plate of described class 2 is by ellipse
Plectane cuts a height of respectively from major axis two endsTwo class cambered plates 4 and a height ofA class cambered plate 3 be obtained
, wherein R is the radius of described housing, and described oval major axis is, short axle is 2R's；Ensure shell fluid described
Carry out cycle flowing no leakage current, trapezoidal deflection plate 2 obliquely flow of described class is compared to arch baffling under the trapezoidal deflection plate of class 2 guiding
The horizontal mobility of plate reduces flow resistance, and shell-side pressure drop is greatly reduced, and overcomes continuous helical in terms of processing and manufacturing
The shortcoming of baffle heat exchanger not easy processing.
Embodiment 2
As shown in fig. 7, the present embodiment is with the difference of embodiment 1：The alternate symmetrical cloth of the trapezoidal deflection plate 2 of two groups of classes
Put；
Embodiment 3
As shown in figure 8, the present embodiment part unlike the embodiments above is：Every group includes the trapezoidal deflection plate 2 of three classes, every group
Interior described class trapezoidal deflection plate 2 spacing is, the trapezoidal deflection plate of class 2 in the middle of every group is to be divided from major axis two ends by ellipse
Do not cut a height ofCambered plate be obtained；The trapezoidal deflection plate of class 2 in the middle of every group is from major axis two ends by ellipse
Cut a height of respectivelyWith a height ofCambered plate be obtained, wherein R is the radius of described housing, described ellipse
Circle major axis be, short axle is 2R's.
In other examples, it is with the difference of above-described embodiment：The trapezoidal deflection plate 2 of described class is changed with described
The angle of heat pipe 1Can arrange according to demand.
Finally it should be noted that：Above example is only not intended to limit in order to technical scheme to be described；To the greatest extent
Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art should be understood：Still
The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this
The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.
Claims (8)
1. a species trapezoidal inclined baffle shell-and-tube heat exchanger it is characterised in that：It includes housing, heat exchanger tube, tube sheet, pull bar
The trapezoidal deflection plate with multigroup class, the adjacent trapezoidal deflection plate quadrature arrangement of class described in two groups, every group to include at least two parallel
The trapezoidal deflection plate of class, if the uniform dry hole of the corresponding described heat exchanger tube of the trapezoidal deflection plate of described class, described heat exchanger tube sets through described hole
Put, the trapezoidal deflection plate of described class is obliquely installed；The trapezoidal deflection plate of described class is fixed by pull bar, logical between all kinds of trapezoidal deflection plates
Cross distance sink tube spacing.
2. the trapezoidal inclined baffle shell-and-tube heat exchanger of class according to claim 1 it is characterised in that：The trapezoidal folding of described class
Flowing plate with described heat exchanger tube angle is, 20 °≤≤70°.
3. the trapezoidal inclined baffle shell-and-tube heat exchanger of class according to claim 2 it is characterised in that：Every group includes two
The trapezoidal deflection plate of class, the trapezoidal deflection plate of described class be cut respectively from major axis two ends by ellipse a height ofWith a height ofCambered plate be obtained；Wherein R is the radius of described housing, and the major axis of described ellipse is, short axle is
2R.
4. the trapezoidal inclined baffle shell-and-tube heat exchanger of class according to claim 3 it is characterised in that：Described class in every group
Trapezoidal baffle(s) spacing is.
5. the trapezoidal inclined baffle shell-and-tube heat exchanger of class according to claim 2 it is characterised in that：Every group includes three
The trapezoidal deflection plate of class, the trapezoidal deflection plate of class in the middle of every group be cut respectively by the summit from major axis two ends a height of's
Cambered plate is obtained；The trapezoidal deflection plate of class in the middle of every group be cut respectively from the summit at major axis two ends by ellipse a height ofWith a height ofCambered plate be obtained；Wherein R is the radius of described housing, and the major axis of described ellipse is, short axle is 2R.
6. the trapezoidal inclined baffle shell-and-tube heat exchanger of class according to claim 5 it is characterised in that：Described class in every group
Trapezoidal baffle(s) spacing is.
7. the trapezoidal inclined baffle shell-and-tube heat exchanger of the class according to any one of claim 2～6 it is characterised in that：Phase
Between the trapezoidal deflection plate of class described in two groups parallel or be arranged symmetrically.
8. the trapezoidal inclined baffle shell-and-tube heat exchanger of class according to claim 7 it is characterised in that：Described heat exchanger tube is worn
Cross described hole and the angle with the trapezoidal deflection plate of described classFor 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611043880.6A CN106440882B (en) | 2016-11-24 | 2016-11-24 | The trapezoidal inclined baffle shell-and-tube heat exchanger of class |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611043880.6A CN106440882B (en) | 2016-11-24 | 2016-11-24 | The trapezoidal inclined baffle shell-and-tube heat exchanger of class |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106440882A true CN106440882A (en) | 2017-02-22 |
| CN106440882B CN106440882B (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611043880.6A Active CN106440882B (en) | 2016-11-24 | 2016-11-24 | The trapezoidal inclined baffle shell-and-tube heat exchanger of class |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120995A (en) * | 2017-05-31 | 2017-09-01 | 山东科技大学 | A kind of shell and tube exchanger with novel baffle |
| CN108731513A (en) * | 2018-06-22 | 2018-11-02 | 郑州大学 | A kind of torsion flow tube shell type heat exchanger |
| CN110207515A (en) * | 2019-06-28 | 2019-09-06 | 郑州大学 | A kind of double torsional flow heat exchangers |
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| CN2672595Y (en) * | 2002-11-04 | 2005-01-19 | 宋小平 | Inclined baffle table still heat exchanger |
| CN1987325A (en) * | 2006-11-30 | 2007-06-27 | 郑州大学 | Inclined flow tube shell type heat exchanger |
| US20090049861A1 (en) * | 2007-08-21 | 2009-02-26 | Wolverine Tube, Inc. | Heat Exchanger with Sloped Baffles |
| CN201852513U (en) * | 2010-11-02 | 2011-06-01 | 南京德邦金属装备工程有限公司 | Variable-inclination angle baffle plate heat exchanger |
| CN102759296A (en) * | 2011-04-27 | 2012-10-31 | 李娟� | Shell-and-tube heat exchanger with continuous spiral baffles |
| CN104501643A (en) * | 2014-12-26 | 2015-04-08 | 新奥科技发展有限公司 | Tube and shell heat exchanger |
| CN105841543A (en) * | 2016-05-31 | 2016-08-10 | 郑州大学 | Oblique rod baffle type oblique flow heat exchanger |
| CN106017136A (en) * | 2016-05-13 | 2016-10-12 | 中国海洋石油总公司 | Vertical type shell-and-tube heat exchanger |
| CN206269639U (en) * | 2016-11-24 | 2017-06-20 | 郑州大学 | The trapezoidal inclined baffle shell-and-tube heat exchanger of class |
-
2016
- 2016-11-24 CN CN201611043880.6A patent/CN106440882B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672595Y (en) * | 2002-11-04 | 2005-01-19 | 宋小平 | Inclined baffle table still heat exchanger |
| CN1987325A (en) * | 2006-11-30 | 2007-06-27 | 郑州大学 | Inclined flow tube shell type heat exchanger |
| US20090049861A1 (en) * | 2007-08-21 | 2009-02-26 | Wolverine Tube, Inc. | Heat Exchanger with Sloped Baffles |
| CN201852513U (en) * | 2010-11-02 | 2011-06-01 | 南京德邦金属装备工程有限公司 | Variable-inclination angle baffle plate heat exchanger |
| CN102759296A (en) * | 2011-04-27 | 2012-10-31 | 李娟� | Shell-and-tube heat exchanger with continuous spiral baffles |
| CN104501643A (en) * | 2014-12-26 | 2015-04-08 | 新奥科技发展有限公司 | Tube and shell heat exchanger |
| CN106017136A (en) * | 2016-05-13 | 2016-10-12 | 中国海洋石油总公司 | Vertical type shell-and-tube heat exchanger |
| CN105841543A (en) * | 2016-05-31 | 2016-08-10 | 郑州大学 | Oblique rod baffle type oblique flow heat exchanger |
| CN206269639U (en) * | 2016-11-24 | 2017-06-20 | 郑州大学 | The trapezoidal inclined baffle shell-and-tube heat exchanger of class |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120995A (en) * | 2017-05-31 | 2017-09-01 | 山东科技大学 | A kind of shell and tube exchanger with novel baffle |
| CN108731513A (en) * | 2018-06-22 | 2018-11-02 | 郑州大学 | A kind of torsion flow tube shell type heat exchanger |
| CN108731513B (en) * | 2018-06-22 | 2020-07-14 | 郑州大学 | Torsional flow shell-and-tube heat exchanger |
| CN110207515A (en) * | 2019-06-28 | 2019-09-06 | 郑州大学 | A kind of double torsional flow heat exchangers |
| CN110207515B (en) * | 2019-06-28 | 2024-04-16 | 郑州大学 | Double-torsion flow heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN106440882B (en) | 2019-01-01 |
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