CN109612313A - A kind of heat exchanger complex heat transfer pipe for waste heat recycling - Google Patents
A kind of heat exchanger complex heat transfer pipe for waste heat recycling Download PDFInfo
- Publication number
- CN109612313A CN109612313A CN201811378869.4A CN201811378869A CN109612313A CN 109612313 A CN109612313 A CN 109612313A CN 201811378869 A CN201811378869 A CN 201811378869A CN 109612313 A CN109612313 A CN 109612313A
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- tube body
- transfer pipe
- heat exchanger
- spiral flow
- 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.)
- Pending
Links
Classifications
-
- 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
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
-
- 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
Abstract
The invention discloses a kind of heat exchanger complex heat transfer pipe for waste heat recycling, which includes tube body and is fixed on the intracorporal multiple multi-spiral flow-disturbing objects of the pipe；Multiple annular grooves being recessed to tubular body along the distribution of tube body axially spaced-apart are provided on the tube wall of the tube body；The multiple multi-spiral flow-disturbing object is spaced apart in the tube body along fluid flow direction.The complex heat transfer pipe passes through setting annular groove and multi-spiral flow-disturbing object, induce generation transverse direction whirlpool and the longitudinal Vortex of tube fluid circulation, keep fluid constantly disturbed along journey, the high-intensitive turbulence of the multiple relays of induced synthesis, constantly wash away tube wall, it is thinned boundary layer, the heat flux of tube wall is improved, has been obviously improved rate of heat transfer.And by the augmentation of heat transfer of the complex heat transfer pipe and the Effective Regulation to resistance, heat transfer comprehensive performance and the thermodynamic efficiency in pipe can be greatly improved.
Description
Technical field
The present invention relates to the Summarization on heat transfer enhancement in heat exchangers in waste heat removal process, more particularly to a kind of waste heat that is used for recycle
Heat exchanger complex heat transfer pipe.
Background technique
Carrier of the heat exchanger as cold fluid and hot fluid heat exchange has important application in many fields, such as petrochemical industry, power work
Journey, new energy, nuclear power station, metal smelt and waste heat recycling field.In petrochemical industry, heat exchanger often accounts for equipment investment
20%-40%.Therefore, the effective use of heat exchanger is even more important for energy conservation.Although traditional smooth heat exchange of heat pipe structure letter
Single, having can refer to compared with multi-standard, but heat transfer efficiency is lower, all be unable to satisfy heat transfer requirements in many techniques.
In order to improve heat transfer efficiency, heat conduction reinforced technology is generallyd use in the prior art.Whether heat conduction reinforced technology presses it
External work is needed, active reinforcement technique and passive facilitation technology can be divided into, wherein passive facilitation technology is real due to not needing external work
It is simple to apply mode, cost of investment is low, and is more widely applied.Passive facilitation technology include flow-disturbing object, extended surface, additive,
The technologies such as ribbed pipe, shape tube, insert, displacer can be mainly divided into lateral whirlpool strengthening mechanism according to its enhanced heat transfer mechanism
With longitudinal whorl strengthened mechanism, the former is reinforced element by the lateral vortex of induction, generates flow separation and attached again, improves nearly wall
Area's turbulivity, is thinned boundary layer, enhances rate of heat transfer；The latter is reinforced element by induction longitudinal turbulence, in main flow area
And near wall region displacement fluid, mixability is strengthened, boundary layer is weakened, improves rate of heat transfer.But it is single using lateral whirlpool
The reinforced element of stream, it is limited to the mixed of main flow area；The single reinforced element using longitudinal turbulence, the disturbance near wall region
Ability is limited, and the single use of the two all has certain restrictions in the promotion of rate of heat transfer, is unfavorable under reasonable pressure drop
Play more preferably rate of heat transfer and heat transfer comprehensive performance.
To sum up, in waste heat recycling field, especially flue gas waste heat recovery field, using traditional smooth tube, there are heat transfer efficiencys
It is low, be easy fouling, the deficiencies of thermodynamic efficiency is not high.
Summary of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of heat exchanger complex heat transfer pipe for waste heat recycling, should
Complex heat transfer pipe passes through setting annular groove and multi-spiral flow-disturbing object, the generation transverse direction whirlpool and longitudinal direction of induction tube fluid circulation
Whirlpool keeps fluid constantly disturbed along journey, and the high-intensitive turbulence of the multiple relays of induced synthesis constantly washes away tube wall, is thinned boundary
Layer, improves the heat flux of tube wall, has been obviously improved rate of heat transfer.And by the augmentation of heat transfer of the complex heat transfer pipe and to resistance
Effective Regulation, can greatly improve heat transfer comprehensive performance and the thermodynamic efficiency in pipe.
To achieve the goals above, the present invention provides a kind of heat exchanger complex heat transfer pipe for waste heat recycling, the heat exchange
Device complex heat transfer pipe includes tube body and is fixed on the intracorporal multiple multi-spiral flow-disturbing objects of the pipe；
It is recessed that multiple annulars being recessed to tubular body along the distribution of tube body axially spaced-apart are provided on the tube wall of the tube body
Slot；
The multiple multi-spiral flow-disturbing object is spaced apart in the tube body along fluid flow direction.
Preferably, the annular groove is arranged at equal intervals on the tube wall, the multi-spiral flow-disturbing object is described
It is arranged at equal intervals in tube body.
Preferably, the multi-spiral flow-disturbing object includes multiple spirals arranged parallel on the same radial section of tube body
Turbulent element.
Preferably, the relationship of the pitch length Y and pipe diameter D of the spiral turbulent element are as follows: Y/D=0.138~
1.379。
Preferably, being fixed between each spiral turbulent element in each multi-spiral flow-disturbing object using spot welding.
Preferably, each multi-spiral flow-disturbing object includes 2-4 spiral turbulent element.
Preferably, being fixed between multiple multi-spiral flow-disturbing objects by metal thin bar, each multi-spiral flow-disturbing object is logical
Cross metal thin bar it is fixed-type after, then be fixed in tube body.
Preferably, the length L of the gap length S of two neighboring multi-spiral flow-disturbing object and single multi-spiral flow-disturbing object
It is determined according to pipe diameter D, wherein the relationship of S and D are as follows: S/D=0~18.103, L/D=3.448~17.241.
Preferably, the distance between the depth H of annular groove and two neighboring annular groove P are true according to pipe diameter D
It is fixed, wherein H/D=0.017~0.069, P/D=0.172~1.724.
Preferably, the longitudinal cross-section of the annular groove is semicircle, ellipse, triangle or trapezoidal.
Preferably, the inclination angle a=between the radial section of the annular groove radial section and the body central axis
15 °~90 °.
Compared with prior art, the invention has the benefit that
1) present invention is flowed by the way that multiple annular grooves being recessed to tubular body are arranged on tube body tube wall to induce in pipe
Body generates multiple lateral whirlpools, induces tube fluid to generate by multiple multi-spiral flow-disturbing objects spaced in tube body multiple
The longitudinal Vortex of Lian Cheng has effectively been homogenized flow field heat by the interaction between lateral whirlpool and longitudinal Vortex, improves entire
The average turbulivity in flow field；Simultaneously because the inertia of fluid, the turbulent perturbation of this high intensity is under multi-spiral flow-disturbing object
Trip can maintain one section of longer distance, form the multiple high intensity turbulent degree of streamwise along relay trip, improve close
The temperature gradient of wall surface, and then rate of heat transfer is improved, be conducive under relatively low resistance, obtain preferably heat transfer synthesis
Performance.
2) compound intensified heat-transfer element of the present invention, relative smooth pipe are used, rate of heat transfer can be improved significantly,
Conduct heat comprehensive performance can be improved significantly；Relatively single groove tube, since the large scale of longitudinal Vortex mixes, flow field is mixed
Conjunction ability is stronger, and rate of heat transfer is bigger；Relatively single spiral flow-disturbing object, due to the collaboration of multiple spiral flow-disturbing objects, Neng Gou
Multiple longitudinal turbulences are generated in flow field, spiral flow-disturbing object number is more, and longitudinal turbulence number is more, and intensity is also bigger, adds
The collaboration in lateral whirlpool, rate of heat transfer are higher；Due to that can be equally spaced, resistance is regulated and controled, therefore also have heat transfer comprehensive
Close the higher feature of performance.In addition, relative smooth pipe, single groove tube and single spiral flow-disturbing object, due to heat transfer property
Increase considerably, which can reduce heat transfer irreversibility entropy and increase, and it is little to increase amplification in flow resistance entropy
In the case of, it reduces total entropy and increases, to promote thermodynamic efficiency.
3) present invention is easy to process, and installation is easy, and can be used for the design of new type heat exchanger and the upgrading of legacy heat exchanger,
Simultaneously because it is producing multiple vortex, attachment and fouling in the pipe of dust or impurity in gas can also be delayed.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the restriction to the application for explaining the application.
Fig. 1 is heat exchange tube body external structure schematic diagram in the embodiment of the present invention one；
Fig. 2 is that (annular groove does not show for the schematic diagram of internal structure of heat exchanger composite heat exchange tube in the embodiment of the present invention one
Out)；
Fig. 3 is that (circular groove structure does not show for the tube body cross-sectional view of heat exchanger composite heat exchange tube in the embodiment of the present invention one
Out)；
Fig. 4 is the side view that heat exchanger composite heat exchange tube part tube body is cut off in the embodiment of the present invention one；
Fig. 5 is the schematic diagram of internal structure of heat exchanger composite heat exchange tube in the embodiment of the present invention two；
Fig. 6 is the side view that heat exchanger composite heat exchange tube part tube body is cut off in the embodiment of the present invention two；
Fig. 7 is heat exchanger composite heat exchange tube external structure schematic diagram in the embodiment of the present invention three.
Wherein, 1, complex heat transfer pipe；11, tube body；12, multi-spiral flow-disturbing object；111, annular groove；121, spiral flow-disturbing
Element.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In addition, in the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ",
" width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two
It is a or more than two, unless otherwise restricted clearly.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
It is mentioned in background technique, that there are heat transfer efficiencys is low for traditional smooth tube, be easy fouling, thermodynamic efficiency is not high not
Foot.In order to solve these technical problems, wherein several implementations that following technical solutions according to the present invention illustrate the present invention
Mode:
As shown in Figure 1 (need to illustrate: while clarity to guarantee attached drawing, showing modular construction as far as possible, it is following not
It is different with the scaling of attached drawing), a kind of heat exchanger complex heat transfer pipe 1 for waste heat recycling, including tube body 11 and be fixed on
Manage intracorporal multiple multi-spiral flow-disturbing objects 12 (as shown in Figure 3)；As shown in Figure 1, 2, it is arranged on the tube wall of tube body 1 multiple along pipe
The annular groove 111 of body axially spaced-apart distribution being recessed to tubular body, as shown in figure 4, multiple multi-spiral flow-disturbing objects 12 exist
It is spaced apart in tube body 1 along fluid flow direction.
Wherein, the production method of tube body 11 are as follows: annular groove 111 is formed in light tube outer surface by way of rolling, and
The longitudinal section of annular groove 111 can be (referring to embodiment one and embodiment two) axial perpendicular to tube body 1, can also be with pipe
Body 1 is axial to have certain angle (referring to embodiment three).
More preferably, annular groove 111 is arranged at equal intervals on the tube wall of tube body 11, multi-spiral flow-disturbing object
12 are arranged at equal intervals in tube body 11.
Multi-spiral flow-disturbing object 12 is generally made of 2-4 spiral turbulent element 121, constitutes same multi-spiral flow-disturbing object
The same end of 12 spiral turbulent element 121 is arranged parallel on a certain radial section perpendicular to axial direction of tube body 11.
Based on above-mentioned, the general processing method of the heat exchanger complex heat transfer pipe 1 are as follows: the same multi-spiral flow-disturbing will be constituted
Each spiral turbulent element 121 of object 12 is fixed as one by way of spot welding, then each multi-spiral flow-disturbing object 12 is led to
It crosses metal thin bar (not shown) to be connected and fixed, composition is laid out at equal intervals, the multiple multi-spiral flow-disturbings that will finally fix
Object 12 is fixed in tube body 11 by metal thin bar.
For above-mentioned total technical solution, the design parameter of the heat exchanger complex heat transfer pipe are as follows:
The relationship of the pitch length Y and pipe diameter D of spiral turbulent element 121 are as follows: Y/D=0.138~1.379.
The length L of the gap length S of two neighboring multi-spiral flow-disturbing object 12 and single multi-spiral flow-disturbing object 12 according to
It is determined according to the diameter D of tube body 11, wherein the relationship of S and D are as follows: S/D=0~18.103, L/D=3.448~17.241.Herein
On the basis of, the relationship of the diameter D of the length Y and tube body 1 of the screw pitch of single spiral turbulent element 121 are as follows: Y/D=0.138
~1.379.
The distance between the depth H of annular groove 111 and two neighboring annular groove 111 P are true according to the diameter D of tube body 1
It is fixed, wherein H/D=0.017~0.069, P/D=0.172~1.724.
The longitudinal cross-section of annular groove 111 is semicircle, ellipse, triangle or trapezoidal, and certainly, its object is to induce
Tube fluid generates lateral whirlpool, and on this basis, the simple replacement that those skilled in the art make the structure ought to fall into this
In the protection scope of invention.
Below with reference to the structure of the embodiment above, enumerate the structural parameters assembled scheme of 3 groups of complex heat transfer pipes, for pair
The present invention is further described below, wherein each embodiment is both needed to combine above structure, and embodiments of the present invention are not
It is limited to this, it is all that simple modifications or changes is done to essence of the invention, belong to the range of technical solution of the present invention.
In addition, in order to evaluate the performance of each embodiment, definition heat transfer comprehensive performance are as follows:
PEC=(Nu/Nu0)/(f/f0)(1/3),
Wherein, PEC is heat transfer comprehensive performance, i.e. Performance evaluation criterion (performance evaluation
Criterion, PEC), Nu0, Nu respectively represent the dimensionless rate of heat transfer of light pipe and complex heat transfer pipe, i.e. nusselt number, f0、f
The dimensionless pressure drop of light pipe and complex heat transfer pipe, i.e. friction factor are respectively represented, under power consumption, if PEC is greater than 1, illustrates to pass
Hot comprehensive performance is improved with respect to light pipe, on the contrary then do not improve.With under power consumption, the PEC of enhanced tube is bigger, heat transfer synthesis
Performance is higher.
Embodiment one
As shown in Fig. 1, design parameter are as follows:
The depth ratio of annular groove 111 is H/D=0.034, and the pitch ratio of two neighboring annular groove 111 is P/D=
1.103, the width ratio of annular groove 111 is T/D=0.172, in the present embodiment, the longitudinal section of annular groove 111 and tube body axis
To perpendicular.The number N of each 12 inside spin turbulent element 121 of multi-spiral flow-disturbing object is 2, and two neighboring multi-spiral is disturbed
The spacing ratio for flowing object 12 is S/D=18.103, the length of each multi-spiral flow-disturbing object 12 (or single spiral turbulent element 121)
Compare L/D=10.345；The line footpath ratio e/D=0.052 of single spiral turbulent element 121, width ratio W/D=0.379, pitch length
Compare Y/D=0.2.
Its installation process are as follows: first by two 121 parallel arrangeds of spiral turbulent element, and by spot welding it is fixed formed it is multiple
Spiral flow-disturbing object 12, then according to the spacing ratio of above-mentioned two neighboring multi-spiral flow-disturbing object 12 by two neighboring multi-spiral
Flow-disturbing object 12 is fixed by metal thin bar, and the multi-spiral flow-disturbing object fixed is finally inserted 12 again and is entered in tube body 11, is equally adopted
It is fixed with the method for welding to get complex heat transfer pipe 1.
In use, fluid enters from one end of complex heat transfer pipe 1 referring to Fig. 3, disturbed in annular groove 111 and multi-spiral
It under the induction for flowing object 12, generates along flowing normal direction and is transversely to the longitudinal direction whirlpool and longitudinal Vortex, vortex washes away tube wall, improves stream
Whole turbulence degree in drives the blending of high temperature fluid and cryogen, reduces velocity vector and temperature gradient in pipe and swears
Angle between amount, volume weighting averagely cooperate with angle lower than the angle both in light pipe close to 90 °, also below single groove tube and
The angle of spiral flow-disturbing object improves cooperateing with for temperature field and velocity field.Relatively traditional light pipe, the mild heat of tube fluid pass
The ability of leading significantly improves, and boundary layer is thinner.Further, since the periodicity of spiral flow-disturbing object 12, vortex are concatenated to form, it is not easy to decline
Subtract, form collaboration relay among each multi-spiral flow-disturbing object 12 with relatively low resistance, to obtain preferably heat transfer
Rate.In 4000~16000 range of Reynolds number, when being used for gas converting heat, compared with traditional smooth tube, rate of heat transfer is improved
60% or more, total entropy, which increases, reduces by 30% or more, reaches PEC > 1.08 under power consumption, maximal heat transfer is comprehensive.
Embodiment two
As shown in attached drawing 5, Fig. 6, the depth ratio of annular groove 111 is H/D=0.034, between two neighboring annular groove 111
Pitch ratio be P/D=1.103, annular groove width ratio T/D=0.172；There is spiral in each multi-spiral flow-disturbing object 12
The quantity N of turbulent element 121 is 3, and the spacing ratio between two neighboring multi-spiral flow-disturbing object 12 is S/D=3.879；Individually
The length ratio L/D=10.345 of spiral turbulent element 121, line footpath ratio e/D=0.052, width ratio W/D=0.379, pitch length
Than Y/D=0.2 (mark position of above-mentioned parameter in example 2 can be found in Fig. 1).In 4000~16000 range of Reynolds number
Interior, when being used for gas converting heat, compared with traditional smooth tube, the maximal heat transfer rate of the present embodiment improves 1 times or more.It is applied
Method is the same as embodiment 1.
Embodiment three
As shown in fig. 7, the embodiment place different from embodiment 1 is the radial section and tube body 11 of annular groove 111
Central axis between angle be a, a=45 ° of the angle, application method is the same as embodiment 1.The present embodiment is intended to illustrate, annular recessed
The radial section of slot 111 is not limited to the central axis perpendicular to tube body 11, for the strength balance for realizing lateral whirlpool and longitudinal Vortex,
It can also have certain angle with the central axis of tube body.
In conclusion, by the way that annular groove is arranged on tube body tube wall, making tube fluid stream in technical solution of the present invention
Dynamic separation with it is attached again, in flow field, induction generates transverse direction whirlpool；Longitudinal Vortex and turbulent perturbation are generated using multi-spiral flow-disturbing object；Two
Under the double action of person, intensity and the influence area of vortex are improved, fluid is increased substantially in mainstream core space and wall region and hands over
Transducing power strengthens the transmitting of fluid particle momentum and heat, and improve flow field and temperature field cooperates with degree, improves tube wall
Heat flux.Certainly, above-mentioned technical proposal is applicable not only to be not only applicable to cylindric tube body, the side's of being also applied for shape tube body.Due to
The blocking of the complex heat transfer pipe to tube fluid can increase substantially local velocity, when increasing fluid flow path or stopping
Between, local nusselt number is improved, under lesser flow velocity, so that it may obtain higher turbulivity, therefore the complex heat transfer pipe is not
But it is suitable for fully developed high Reynolds number flow, is also suitable for unformed middle low reynolds number flow.By in flow direction
Control to tube body and multi-spiral flow-disturbing object structural parameters, active control resistance, to not only guarantee big rate of heat transfer, but also energy
Relatively small fluid power consumption is paid, the augmentation of heat transfer comprehensive performance of high-efficiency low-resistance can be obtained on the whole.
It above are only several embodiments of the invention, it should be understood by those skilled in the art that, reality of the invention
Applying example can provide as method, system or computer program product.Therefore, the present invention can be used complete hardware embodiment, completely it is soft
The form of part embodiment or embodiment combining software and hardware aspects.
In addition, it should be noted that:
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention, it is all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, still fall within the technology of the present invention
In the range of scheme.
Claims (10)
1. a kind of heat exchanger complex heat transfer pipe for waste heat recycling, which is characterized in that including tube body and be fixed on the tube body
Interior multiple multi-spiral flow-disturbing objects；
Multiple annular grooves being recessed to tubular body along the distribution of tube body axially spaced-apart are provided on the tube wall of the tube body,
The multiple multi-spiral flow-disturbing object is spaced apart in the tube body along fluid flow direction.
2. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 1, which is characterized in that the ring
Connected in star is arranged at equal intervals on the tube wall, and the multi-spiral flow-disturbing object is arranged at equal intervals in the tube body.
3. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 2, which is characterized in that described more
Heavy corkscrews flow-disturbing object includes multiple spiral turbulent elements arranged parallel on the same radial section of tube body.
4. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 3, which is characterized in that the spiral shell
Revolve the relationship of the pitch length Y and pipe diameter D of turbulent element are as follows: Y/D=0.138~1.379.
5. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 3, which is characterized in that Mei Geduo
Heavy corkscrews flow-disturbing object includes 2-4 spiral turbulent element.
6. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 1, which is characterized in that Duo Geduo
Fixed between heavy corkscrews flow-disturbing object by metal thin bar, each multi-spiral flow-disturbing object by metal thin bar it is fixed-type after, then
It is fixed in tube body.
7. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 1, which is characterized in that adjacent two
The length L of the gap length S of a multi-spiral flow-disturbing object and single multi-spiral flow-disturbing object is determining according to pipe diameter D,
In, the relationship of S and D are as follows: S/D=0~18.103, L/D=3.448~17.241.
8. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 1, which is characterized in that annular is recessed
The distance between the depth H of slot and two neighboring annular groove P are determined according to pipe diameter D, wherein H/D=0.017~
0.069, P/D=0.172~1.724.
9. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 1, which is characterized in that the ring
The longitudinal cross-section of connected in star is semicircle, ellipse, triangle or trapezoidal.
10. a kind of heat exchanger complex heat transfer pipe for waste heat recycling according to claim 1, which is characterized in that described
A=15 ° of inclination angle~90 ° between the radial section of annular groove radial section and the body central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378869.4A CN109612313A (en) | 2018-11-19 | 2018-11-19 | A kind of heat exchanger complex heat transfer pipe for waste heat recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378869.4A CN109612313A (en) | 2018-11-19 | 2018-11-19 | A kind of heat exchanger complex heat transfer pipe for waste heat recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109612313A true CN109612313A (en) | 2019-04-12 |
Family
ID=66004632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811378869.4A Pending CN109612313A (en) | 2018-11-19 | 2018-11-19 | A kind of heat exchanger complex heat transfer pipe for waste heat recycling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109612313A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062817U (en) * | 1989-11-06 | 1990-09-26 | 孙力刚 | Heat exchanging pipe for tubular heat exchanger |
| CN2089155U (en) * | 1990-08-02 | 1991-11-20 | 上海市红光锅炉厂 | Inserting twist-belt type turbolator for forced heat transfer in pipe |
| CN200989745Y (en) * | 2006-12-28 | 2007-12-12 | 广州贝龙环保热力设备股份有限公司 | Concave-convex heat exchanging tube |
| CN101430171A (en) * | 2007-11-09 | 2009-05-13 | 上海奥侨实业有限公司 | Pipe for heat exchanger |
| CN101762204A (en) * | 2009-12-17 | 2010-06-30 | 中国石油化工股份有限公司 | Quenching boiler heat-exchanging pipe with strengthened heat-transfer element |
| CN103061867A (en) * | 2012-12-20 | 2013-04-24 | 华南理工大学 | Gas-liquid type intercooler |
| CN103376013A (en) * | 2013-07-29 | 2013-10-30 | 无锡方盛换热器制造有限公司 | Heat exchange tube for heat exchanger |
| CN203454886U (en) * | 2013-07-24 | 2014-02-26 | 湖北壮志石化设备科技有限公司 | Helical corrugated tube |
| CN204461177U (en) * | 2015-02-10 | 2015-07-08 | 辽宁远东换热设备制造有限公司 | A kind of oblate crisscross heat exchanger tube |
| CN206095029U (en) * | 2016-05-10 | 2017-04-12 | 广东万家乐燃气具有限公司 | Four twisted strip vortex heat exchange tubes |
| CN208620891U (en) * | 2018-07-02 | 2019-03-19 | 宁波富尔顿热能设备有限公司 | A kind of spiral turbolator |
-
2018
- 2018-11-19 CN CN201811378869.4A patent/CN109612313A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062817U (en) * | 1989-11-06 | 1990-09-26 | 孙力刚 | Heat exchanging pipe for tubular heat exchanger |
| CN2089155U (en) * | 1990-08-02 | 1991-11-20 | 上海市红光锅炉厂 | Inserting twist-belt type turbolator for forced heat transfer in pipe |
| CN200989745Y (en) * | 2006-12-28 | 2007-12-12 | 广州贝龙环保热力设备股份有限公司 | Concave-convex heat exchanging tube |
| CN101430171A (en) * | 2007-11-09 | 2009-05-13 | 上海奥侨实业有限公司 | Pipe for heat exchanger |
| CN101762204A (en) * | 2009-12-17 | 2010-06-30 | 中国石油化工股份有限公司 | Quenching boiler heat-exchanging pipe with strengthened heat-transfer element |
| CN103061867A (en) * | 2012-12-20 | 2013-04-24 | 华南理工大学 | Gas-liquid type intercooler |
| CN203454886U (en) * | 2013-07-24 | 2014-02-26 | 湖北壮志石化设备科技有限公司 | Helical corrugated tube |
| CN103376013A (en) * | 2013-07-29 | 2013-10-30 | 无锡方盛换热器制造有限公司 | Heat exchange tube for heat exchanger |
| CN204461177U (en) * | 2015-02-10 | 2015-07-08 | 辽宁远东换热设备制造有限公司 | A kind of oblate crisscross heat exchanger tube |
| CN206095029U (en) * | 2016-05-10 | 2017-04-12 | 广东万家乐燃气具有限公司 | Four twisted strip vortex heat exchange tubes |
| CN208620891U (en) * | 2018-07-02 | 2019-03-19 | 宁波富尔顿热能设备有限公司 | A kind of spiral turbolator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Garg et al. | Heat transfer augmentation using twisted tape inserts: a review | |
| CN102538562B (en) | Shell-and-tube heat exchanger with combined type one-shell-pass continuous spiral baffles | |
| CN106679465B (en) | A kind of accumulatingdust, anti-wear, etch-proof flue gas heat-exchange unit | |
| CN103175429B (en) | Multidirectional wave-li ke internally finned tubes | |
| CN101245974A (en) | Finned heat exchanger | |
| CN108007244B (en) | A kind of spiral plug-flow channel plate heat exchanger | |
| CN1190645C (en) | Intensified heat exchange tube with intersectional zoomed sections of circle-ellipse | |
| Ravigururajan et al. | Visualization of flow phenomena near enhanced surfaces | |
| CN107166995A (en) | High-performance heat exchanger and application thereof | |
| CN105300140A (en) | Shell pass complex enhanced heat exchanger with spiral band for supporting sinusoidal (cosinoidal) bellows | |
| CN109612320B (en) | Turbulent flow element and turbulent flow pipe for reducing turbulence critical Reynolds number | |
| CN105258533B (en) | There is the shell-and-tube heat exchanger of fractal structure | |
| CN101435673B (en) | Reinforced heat transfer pipe | |
| CN109612313A (en) | A kind of heat exchanger complex heat transfer pipe for waste heat recycling | |
| CN206095029U (en) | Four twisted strip vortex heat exchange tubes | |
| TW200422580A (en) | Enhanced heat-exchanging tubes with alternating elliptical and circular cross sections | |
| CN209037271U (en) | Mirror press-finishing roller | |
| CN105300156A (en) | Compound intensified heat transfer pipe with internally installed twisting belts | |
| CN206709678U (en) | A kind of three-dimensional deflection plate and shell-and-tube heat exchanger | |
| CN100334415C (en) | Shell-and-tube heat exchanger of vortx net plate support pipe bundle and its forced heat transfer method | |
| CN211452033U (en) | Stepped spiral baffle plate and heat exchanger applying same | |
| CN105783554B (en) | A kind of three-phase interactive mode vortex heat exchanger | |
| CN205580277U (en) | Discontinuous outer trapezoidal ribbed pipe of indulging | |
| CN206944767U (en) | High-performance heat exchanger | |
| Batule et al. | Heat transfer and pressure drop performance improvement using curved circular spines for flow through circular pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201009 Address after: 337016 Changchun Village, Xiapu Town, Eastern Hunan District, Pingxiang City, Jiangxi Province (4th Floor, Management Committee Building, Pingxiang Ceramic Industry Base) Applicant after: JIANGXI INDUSTRIAL CERAMICS ENGINEERING TECHNOLOGY RESEARCH CENTER Applicant after: LISHUI University Address before: 337016 Changchun Village, Xiapu Town, Eastern Hunan District, Pingxiang City, Jiangxi Province (4th Floor, Management Committee Building, Pingxiang Ceramic Industry Base) Applicant before: JIANGXI INDUSTRIAL CERAMICS ENGINEERING TECHNOLOGY RESEARCH CENTER |