CN106352732B - Plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube - Google Patents
Plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube Download PDFInfo
- Publication number
- CN106352732B CN106352732B CN201610700836.1A CN201610700836A CN106352732B CN 106352732 B CN106352732 B CN 106352732B CN 201610700836 A CN201610700836 A CN 201610700836A CN 106352732 B CN106352732 B CN 106352732B
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- exchanger tube
- heat exchanger
- scroll bar
- enhanced heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
- F28F13/125—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
Abstract
The invention discloses a kind of plug-in type enhanced heat exchange components suitable for heat exchanger tube, it includes the support rod being housed in heat exchanger tube and multiple enhanced heat exchange flow-disturbing units being arranged at intervals on the support rod, the support rod is provided with multiple spaced installation nodes along the axial direction setting of the heat exchanger tube.The enhanced heat exchange flow-disturbing unit includes the curved rod for being connected to the scroll bar of the support rod and being connected to the scroll bar, and the scroll bar is obliquely installed with the support rod.The scroll bar includes the fixing end for being connected to the node and the connecting pin for being vertically connected at the curved rod.The curved rod is symmetrical arranged relative to the scroll bar, and its cambered surface and the inner wall of the heat exchanger tube are parallel to each other.0.05 times of minimum range between the enhanced heat exchange flow-disturbing unit and the inner wall of the heat exchanger tube greater than zero and less than or equal to the heat exchange bore.The invention further relates to the thermoexcells with above-mentioned plug-in type enhanced heat exchange component.
Description
Technical field
The invention belongs to the turbulent flow reinforced field of heat exchange of heat exchanger tube, more particularly, to a kind of insertion suitable for heat exchanger tube
Formula enhanced heat exchange component and thermoexcell with the plug-in type enhanced heat exchange component.
Background technique
The characteristics of thermoexcell is because of its high-efficiency and economic, is widely used in petroleum, metallurgy, chemical industry and communications and transportation
Etc. industries, heat exchanger application in occupy leading position.In order to improve heat transfer effect, heat exchanger applications field is had been developed
Enhanced heat exchange technology and theory.Core enhanced heat exchange theory proposes the energy and mass exchange mistake by reinforcing core flow region
Journey, so that core flow region expands, the more uniform thinking of temperature.Not only make boundary layer thinner in this way, but also makes boundary layer
Temperature gradient become larger, and then achieve the effect that enhanced heat exchange.Also one is the enhanced heat transfer modes based on surface, by right
The fluid of near-wall is disturbed, and the development in boundary layer is constantly destroyed, and the thickness in boundary layer is thinned, and improves exchange capability of heat.
Enhanced heat exchange technology can totally be divided into tube side heat transfer enhancement technology and enhanced heat exchange in shell-side technology, manage interior insertion
Object becomes in recent years as one of tube side heat transfer enhancement technology because the pattern and strengthening principle of turbulent element are all kinds of
Popular research object and application.However, the enhanced heat transfer mode of insert is single in existing pipe, heat exchange efficiency is lower,
Structure is more complicated, and not easy to be processed.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of plug-in types suitable for heat exchanger tube
Enhanced heat exchange component and thermoexcell are strong for the plug-in type in conjunction with the mode that core reinforcing and boundary layer are strengthened
The structure for changing heat-exchanging component is designed.The enhanced heat exchange flow-disturbing unit includes scroll bar and the company for being connected to the support rod
It is connected to the curved rod of the scroll bar, the scroll bar is obliquely installed on the support rod, and the scroll bar is used to form longitudinal Vortex, institute
While stating longitudinal Vortex longitudinal development, itself generates whirlpool, and increasing laterally disturbance, the longitudinal Vortex can add in the flowing direction
The disturbance of high current body, the exchange process of strengthening fluid quality and energy；Although the laterally disturbance can be such that flow resistance increases,
It is also to reinforce the caloic exchange at wall surface and center stream region；The curved rod carries out the augmentation of heat transfer of part in boundary layer,
Heat exchange efficiency is greatly improved, and structure is simple, it is easy to process.
To achieve the above object, according to one aspect of the present invention, it is strong to provide a kind of plug-in type suitable for heat exchanger tube
Change heat-exchanging component comprising the support rod and multiple enhanced heat exchanges being arranged at intervals on the support rod being housed in heat exchanger tube
Flow-disturbing unit, it is characterised in that:
The support rod is provided with multiple spaced installation nodes along the axial direction setting of the heat exchanger tube；
The enhanced heat exchange flow-disturbing unit includes the arc for being connected to the scroll bar of the support rod and being connected to the scroll bar
Bar, the scroll bar are obliquely installed on the support rod；The scroll bar includes fixing end and connecting pin, and the fixing end is connected to
The node, the connecting pin is vertical with the curved rod to be connect；The curved rod is symmetrical arranged relative to the scroll bar, and its
Cambered surface and the inner wall of the heat exchanger tube are parallel to each other；Between the enhanced heat exchange flow-disturbing unit and the inner wall of the heat exchanger tube
Minimum range be preferably greater than zero and be less than or equal to the heat exchange 0.05 times of bore.
Further, the arrangement density of the enhanced heat exchange flow-disturbing unit is 29 every meter.
Further, each node is fixedly connected with three enhanced heat exchange flow-disturbing units, and three enhanced heat exchanges are disturbed
Stream unit is uniformly distributed；The arrangement density of the enhanced heat exchange flow-disturbing unit is 87 every meter.
Further, the curved rod is triangle, circle and ellipse perpendicular to the shape of the cross section of central axis
One of shape.
Further, the angle at the inclination angle formed between the scroll bar and the support rod is 30 °, the curved rod pair
The central angle answered is 36 °.
Further, the scroll bar is circle perpendicular to the shape of the cross section in length direction.
It is another aspect of this invention to provide that providing a kind of thermoexcell comprising heat exchanger tube, the thermoexcell
It further include the plug-in type enhanced heat exchange component as described above for being suitable for heat exchanger tube.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, using of the invention suitable
For the plug-in type enhanced heat exchange component and thermoexcell of heat exchanger tube, the enhanced heat exchange flow-disturbing unit is described including being connected to
The scroll bar of support rod and the curved rod for being connected to the scroll bar, the scroll bar are obliquely installed with the support rod, and the scroll bar is used
While formation longitudinal Vortex, the longitudinal Vortex longitudinal development, itself generates whirlpool, increases laterally disturbance, the longitudinal Vortex energy
Enough disturbances for reinforcing fluid in the flowing direction, the exchange process of strengthening fluid quality and energy；Although the laterally disturbance meeting
Increase flow resistance, but also reinforces the caloic exchange at wall surface and center stream region；The curved rod boundary layer into
The augmentation of heat transfer of row part, greatly improves heat exchange efficiency, and structure is simple, easy to process.
Detailed description of the invention
Fig. 1 is the left view for the thermoexcell structure that first embodiment of the invention provides.
Fig. 2 is the front view of the thermoexcell structure in Fig. 1.
Fig. 3 is the front view for the thermoexcell structure that second embodiment of the invention provides.
Fig. 4 is the speed vector figure of cross section where the center of the curved rod of plug-in type enhanced heat exchange component in Fig. 1.
Fig. 5 is the temperature field figure of cross section where the center of the curved rod in Fig. 4.
Fig. 6 is the motion pattern of cross section where the center of the curved rod in Fig. 4.
Fig. 7 is the coefficient of heat transfer Nu of the thermoexcell in Fig. 1 with the variation diagram of reynolds number Re.
Fig. 8 is the resistance coefficient f of the thermoexcell in Fig. 1 with the variation diagram of reynolds number Re.
Fig. 9 is the augmentation of heat transfer comprehensive performance evaluation index PEC of the thermoexcell in Fig. 1 with the variation of reynolds number Re
Figure.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: 1- scroll bar, 2- arc
Shape bar, 3- support rod, 4- heat exchanger tube.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
It please refers to Fig.1 to Fig.3, the thermoexcell that first embodiment of the invention provides comprising be suitable for heat exchanger tube
Plug-in type enhanced heat exchange component and heat exchanger tube 4, the plug-in type enhanced heat exchange component is arranged in the heat exchanger tube 4.This reality
It applies in mode, the mode that the plug-in type enhanced heat exchange component combination core flow is strengthened and boundary current is strengthened, described in strengthening
The exchange capability of heat of heat exchanger tube.
The plug-in type enhanced heat exchange component includes support rod 3 and the reinforcing that multiple intervals are fixed on the support rod 3
Exchange heat flow-disturbing unit.In present embodiment, the length direction of the support rod 3 is axial parallel with the heat exchanger tube 4；The branch
There are multiple spaced installation nodes on strut 3, multiple enhanced heat exchange flow-disturbing units are separately fixed at multiple peaces
It fills on node.
The enhanced heat exchange flow-disturbing unit includes scroll bar 1 and the curved rod 2 for being connected to the scroll bar 1, and the scroll bar 1 is fixed
It is connected to the installation node of the support rod 3, the curved rod 2 is vertical with the scroll bar 1 to be connect.It is described in present embodiment
Scroll bar 1 is obliquely installed relative to the support rod 3；The scroll bar 1 includes fixing end and the connecting pin opposite with the fixing end,
The fixing end is fixedly connected on the support rod 3, and the connecting pin is vertically connected at the center of the curved rod 2, i.e., described
Curved rod 2 is symmetrical arranged relative to the connecting pin；The cambered surface of the curved rod 2 is parallel with the inner wall of the heat exchanger tube 4 to be set
It sets.
Minimum range between the enhanced heat exchange flow-disturbing unit and the inner wall of the heat exchanger tube 4 is H, wherein 0 < H≤
0.05D, D are the internal diameter of the heat exchanger tube 4.The scroll bar 1 is used to form longitudinal Vortex to disturb the core flow region of fluid, in turn
The heat transfer in reinforcing core stream region；The curved rod 2 is used to disturb the boundary layer of fluid to carry out local augmentation of heat transfer.
In present embodiment, the scroll bar 1 and the curved rod 2 are process by round bar, and the scroll bar 1 is perpendicular to certainly
The cross section in body length direction and the curved rod 2 are circle perpendicular to the cross section in length direction, it will be understood that
It can be other shapes, such as triangle, ellipse in other embodiments；Each one reinforcing of installation node installation
Exchange heat flow-disturbing unit, it will be understood that in other embodiments, each installation node can install the enhanced heat exchange of other quantity
Flow-disturbing unit, such as two, three, it is each installation node installation multiple enhanced heat exchange flow-disturbing units it is symmetrical or
Mal-distribution.
Using the performance of thermoexcell described in numerical simulation study, computation model parameter is as follows: the heat exchanger tube 4 is interior
Diameter D is the round tube of 18mm, and the diameter Dr of the support rod 3 is 2mm, and the scroll bar 1 and the curved rod are that diameter d is 1mm
Thin bar；The scroll bar 1 is 30 ° with the angle α that the support rod 3 is formed；The center of circle of the curved rod 2 is located at the support rod
On 3 central axis, radius R=8mm, the corresponding central angle θ of the curved rod 2 is preferably 36 °, the enhanced heat exchange flow-disturbing
Minimum range between unit and the inner wall of the heat exchanger tube 4 is that H is 0.5mm, i.e. H=0.028D；The enhanced heat exchange is disturbed
Unit is flowed with the density arrangement of 29/meter (i.e. pitch P=35mm), and angle β is preferably 120 °, is evenly distributed on the support
The periphery of bar 3；The numerical simulation of present embodiment is calculated using periodic boundary, and the cycle length of the heat exchanger tube 4 is taken as
105mm can be calculated according to pitch and three enhanced heat exchange flow-disturbing units can be set in a cycle length；If fluid is
Water, and it is incompressible；Simulation process selects Reynolds number 250,500,750,1000,1250,1500 and 1,750 7, wall surface temperature
For 340K, fluid inlet temperature 293K, the surface of the plug-in type enhanced heat exchange component is assumed to be insulation.It is appreciated that at it
In his embodiment, the angle α that the scroll bar 1 is formed with the support rod 3 can be other angles.
Referring to Fig. 4, nucleus fluid under the guidance of the scroll bar 1, flows to the wall surface of the heat exchanger tube 4, it is described
The longitudinal Vortex that scroll bar 1 is formed strengthens the quality of central area and wall area and the exchange process of energy.Meanwhile in the arc
Under the guidance of shape bar 2, the fluid for reaching wall area can be spread to both sides, increase the strengthening region in boundary layer.
Referring to Fig. 5, from cross section where the center of the curved rod 2 (by the central axis of the curved rod 2 and vertical
In the axial cross section of the heat exchanger tube 4) temperature field figure it is found that the lower fluid of the temperature of nucleus area compared with
Greatly, the thermal boundary layer of especially described 1 region of scroll bar is relatively thin, the reason is that the scroll bar 1 guides the fluid of nucleus
To the near wall of the heat exchanger tube 4；The curved rod 2 is obvious to the disturbance effect at wall surface, and boundary layer thickness is relative to it
His region is obviously reduced very much, and temperature gradient is larger, thus Local Heat Transfer is remarkably reinforced；In the region without the curved rod 2, by
The influence of the flowing front enhanced heat exchange flow-disturbing unit, since longitudinal Vortex still keeps certain intensity, so regional area
Boundary layer also can be relatively thin, and regional area heat exchange is also enhanced, and suitable pitch can allow longitudinal Vortex in the heat exchanger tube 4
Inside being continuously available periodically enhances, so that there is the disturbance of longitudinal Vortex in the heat exchanger tube 4 always.
Referring to Fig. 6, the fluid is in the plug-in type enhanced heat exchange under the action of enhanced heat exchange flow-disturbing unit
The two sides of component are symmetrically formed longitudinal Vortex, and while the longitudinal Vortex longitudinal development, itself generates whirlpool, increases laterally disturbance.
The longitudinal Vortex can reinforce the disturbance of fluid, the exchange process of strengthening fluid quality and energy in the flowing direction；The cross
Although flow resistance can be made to increase to disturbance, also reinforce the caloic exchange at wall surface and center stream region.
Fig. 7 to Fig. 9 is please referred to, the exchange capability of heat of the thermoexcell is indicated using dimensionless number nusselt number Nu,
Nu is bigger, indicates that exchange capability of heat is better；Resistance is evaluated with resistance coefficient f, the smaller resistance cost for indicating the thermoexcell of f
It is smaller；Integrated performance index PEC has then comprehensively considered heat exchange and has improved bring income and resistance raising bring cost,Nu0、f0When representing without the plug-in type enhanced heat exchange component is inserted into, the exchange capability of heat of the heat exchanger tube,
Resistance.Re is directly proportional to tube fluid speed,ρ, μ, U are respectively the density, dynamic viscosity, speed of working medium.?
In the range of reynolds number Re is 250~1750, exchange capability of heat Nu increases with the increase of reynolds number Re, described compared to not
The heat exchanger tube of plug-in type enhanced heat exchange component, the exchange capability of heat for the thermoexcell that present embodiment provides improves 2.40~
7.58 times, resistance improves 2.10~3.59 times, and integrated performance index PEC can reach 1.87~4.95, and (it is comprehensive that PEC is greater than 1 explanation
It is better than light pipe to close heat transfer effect).
The enhanced heat exchange that the thermoexcell and first embodiment of the invention that second embodiment of the invention provides provide
The structure of pipe is essentially identical, the difference lies in that three enhanced heat exchange flow-disturbing units of each installation node connection, three
The enhanced heat exchange flow-disturbing unit is uniformly distributed along the periphery of the support rod 3, and the arrangement of the enhanced heat exchange flow-disturbing unit is close
Degree is 87 every meter.
Using the plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube of the invention, the enhanced heat exchange
Flow-disturbing unit includes the curved rod for being connected to the scroll bar of the support rod and being connected to the scroll bar, the scroll bar and the support
Bar is obliquely installed, and the scroll bar is used to form longitudinal Vortex, and while the longitudinal Vortex longitudinal development, itself generates whirlpool, increases
Laterally disturbance, the longitudinal Vortex can reinforce the disturbance of fluid in the flowing direction, strengthening fluid quality and energy it is exchanged
Journey；Although the laterally disturbance can be such that flow resistance increases, also reinforce the caloic exchange at wall surface and center stream region；
The curved rod carries out the augmentation of heat transfer of part in boundary layer, greatly improves heat exchange efficiency, and structure is simple, is easy to add
Work.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of plug-in type enhanced heat exchange component suitable for heat exchanger tube comprising the support rod that is housed in heat exchanger tube and multiple
The enhanced heat exchange flow-disturbing unit being arranged at intervals on the support rod, it is characterised in that:
The support rod is provided with multiple spaced installation nodes along the axial direction setting of the heat exchanger tube；
The enhanced heat exchange flow-disturbing unit includes the curved rod for being connected to the scroll bar of the support rod and being connected to the scroll bar, institute
Scroll bar is stated to be obliquely installed with the support rod；The scroll bar includes fixing end and connecting pin, and the fixing end is connected to the section
Point, the connecting pin is vertical with the curved rod to be connect；The curved rod relative to the scroll bar be symmetrical arranged, and its cambered surface with
The inner wall of the heat exchanger tube is parallel to each other；Minimum between the enhanced heat exchange flow-disturbing unit and the inner wall of the heat exchanger tube
0.05 times of distance greater than zero and less than or equal to the heat exchange bore；
The scroll bar is used to form longitudinal Vortex, and the longitudinal Vortex can reinforce the disturbance of fluid in the flowing direction, reinforces center
The exchange process of the fluid mass and energy of region and wall area, meanwhile, under the guidance of the curved rod, reach wall region
The fluid in domain can be spread to both sides, increase the strengthening region in boundary layer, in addition, while the longitudinal Vortex longitudinal development, from
Body generates whirlpool, increases laterally disturbance, and the laterally disturbance reinforces the exchange of the caloic of wall area and central area；The arc
Shape bar carries out the augmentation of heat transfer of part in boundary layer, to improve heat exchange efficiency.
2. being suitable for the plug-in type enhanced heat exchange component of heat exchanger tube as described in claim 1, it is characterised in that: the reinforcing is changed
The arrangement density of hot flow-disturbing unit is 29 every meter.
3. being suitable for the plug-in type enhanced heat exchange component of heat exchanger tube as described in claim 1, it is characterised in that: each node is solid
Surely three enhanced heat exchange flow-disturbing units are connected, three enhanced heat exchange flow-disturbing units are uniformly distributed；The enhanced heat exchange
The arrangement density of flow-disturbing unit is 87 every meter.
4. the plug-in type enhanced heat exchange component as described in any one of claims 1-3 suitable for heat exchanger tube, it is characterised in that: institute
It is one of triangle, circle and ellipse that curved rod, which is stated, perpendicular to the shape of the cross section of central axis.
5. the plug-in type enhanced heat exchange component as described in any one of claims 1-3 suitable for heat exchanger tube, it is characterised in that: institute
The angle for stating the inclination angle formed between scroll bar and the support rod is 30 °, and the corresponding central angle of the curved rod is 36 °.
6. the plug-in type enhanced heat exchange component as described in any one of claims 1-3 suitable for heat exchanger tube, it is characterised in that: institute
State scroll bar perpendicular to length direction cross section it is conveniently of circular shape.
7. a kind of thermoexcell comprising heat exchanger tube, it is characterised in that:
The thermoexcell further includes the plug-in type enhanced heat exchange as claimed in any one of claims 1 to 6 suitable for heat exchanger tube
Component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700836.1A CN106352732B (en) | 2016-08-22 | 2016-08-22 | Plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700836.1A CN106352732B (en) | 2016-08-22 | 2016-08-22 | Plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106352732A CN106352732A (en) | 2017-01-25 |
| CN106352732B true CN106352732B (en) | 2018-12-07 |
Family
ID=57844364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610700836.1A Active CN106352732B (en) | 2016-08-22 | 2016-08-22 | Plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106352732B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050875B (en) * | 2017-11-14 | 2019-06-07 | 华中科技大学 | A kind of sheet eddy generator insert structure and heat exchanger tube suitable for heat exchanger tube |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2895508A (en) * | 1955-11-23 | 1959-07-21 | Patterson Kelley Company Inc | Heat exchange conduit |
| HU173583B (en) * | 1976-06-30 | 1979-06-28 | Energiagazdalkodasi Intezet | Device for increasing the heat transfer in heat exchanger tubes |
| US4190105A (en) * | 1976-08-11 | 1980-02-26 | Gerhard Dankowski | Heat exchange tube |
| IT1166842B (en) * | 1979-05-21 | 1987-05-06 | Trojani Benito Luigi | FINISHED TUBE FOR HEAT EXCHANGERS |
| CN101435673B (en) * | 2008-12-09 | 2010-08-11 | 华中科技大学 | Reinforced heat transfer pipe |
| CN105115347B (en) * | 2015-07-27 | 2017-04-12 | 华中科技大学 | Flow-guiding plug-in device in heat exchange tube |
-
2016
- 2016-08-22 CN CN201610700836.1A patent/CN106352732B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| Numerical studies on thermo-hydraulic characteristics of laminar flow in a heat exchanger tube fitted with vortex rods;nianben zheng等;《international journal of thermal sciences》;20160228;第100卷;448-456 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106352732A (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Biçer et al. | Design optimization of a shell-and-tube heat exchanger with novel three-zonal baffle by using CFD and taguchi method | |
| Bhuiyan et al. | Thermal and hydraulic performance of finned-tube heat exchangers under different flow ranges: A review on modeling and experiment | |
| CN103629952B (en) | Duct type heat exchanger, its manufacture method and heat transmission equipment | |
| Deeb | Numerical analysis of the effect of longitudinal and transverse pitch ratio on the flow and heat transfer of staggered drop-shaped tubes bundle | |
| CN109405589B (en) | Spherical heat exchanger with double tube-pass independent heat exchange | |
| Nouri-Borujerdi et al. | Experimental study of forced convection heat transfer from a cam shaped tube in cross flows | |
| Popov et al. | Industrial applications of heat transfer enhancement: The modern state of the problem (a Review) | |
| CN203100496U (en) | Double-pipe heat exchanger | |
| Deeb | The effect of angle of attack on heat transfer characteristics of drop-shaped tube | |
| CN102564189A (en) | Heat transfer pipe | |
| CN105300140A (en) | Shell pass complex enhanced heat exchanger with spiral band for supporting sinusoidal (cosinoidal) bellows | |
| Liu et al. | Flow mechanism and heat transfer enhancement in longitudinal-flow tube bundle of shell-and-tube heat exchanger | |
| CN106352732B (en) | Plug-in type enhanced heat exchange component and thermoexcell suitable for heat exchanger tube | |
| JP2007085723A (en) | Heat exchanger comprising supercritical carbon-dioxide circuit | |
| US20140332188A1 (en) | Heat exchanger | |
| Rukruang et al. | Experimental and numerical study on heat transfer and flow characteristics in an alternating cross‐section flattened tube | |
| CN107990761A (en) | A kind of shell-and-tube heat exchanger of full-circle spray pattern orifice-baffle support axial notch heat exchanger tube | |
| CN108050875B (en) | A kind of sheet eddy generator insert structure and heat exchanger tube suitable for heat exchanger tube | |
| CN104296584A (en) | Spiral band passive enhancement heat exchanging pipe | |
| Li et al. | Visualization of longitudinal vortex flow in an enhanced heat transfer tube | |
| CN207797806U (en) | A kind of special pipe wing heat exchanger | |
| KR101321989B1 (en) | A fin heat exchanger by heat transfer between spiral channel and double pipe | |
| Feng et al. | Hydrothermal and energy-saving performances in a mini-channel heat sink under different wire coil inserts induced swirling flow | |
| CN108548438A (en) | A kind of mixing chamber-shell-and-tube heat exchanger | |
| CN206959674U (en) | A kind of 3 D deformation with internal-rib becomes space heat exchanger tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Zhichun Inventor after: Zhang Kai Inventor after: Li Pengxiao Inventor after: Liang Yunmin Inventor after: Liu Wei Inventor after: Yang Jinguo Inventor before: Liu Zhichun Inventor before: Zhang Kai Inventor before: Li Pengxiao Inventor before: Liu Wei Inventor before: Yang Jinguo |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |