CN108444330A - A kind of compound intensified heat-transfer pipe - Google Patents
A kind of compound intensified heat-transfer pipe Download PDFInfo
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- CN108444330A CN108444330A CN201810145072.3A CN201810145072A CN108444330A CN 108444330 A CN108444330 A CN 108444330A CN 201810145072 A CN201810145072 A CN 201810145072A CN 108444330 A CN108444330 A CN 108444330A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to Summarization on heat transfer enhancement in heat exchangers field more particularly to a kind of augmentation of heat transfer pipes.A kind of compound intensified heat-transfer pipe, including tube body, and the twisted strip in tubular body is set；The twisted strip is that one end of metal strip is fixed, and another free end rotates a certain angle around its center line with length；The twisted strip of tubular body is axially laid out with 180 ° or 360 ° for swing circle along tube body, and a twisted strip unit is formed in each period, is 30 ° ~ 90 ° with the intersecting angle between two neighboring twisted strip unit on root twisted strip.A kind of tubular body twisted strip of the compound intensified heat-transfer pipe of twisted tape inserts forms big longitudinal Vortex in tube hub region and wall section, longitudinal Vortex has the characteristics that high-efficiency low-resistance, so as to implement to manage the high intensity fluid substitution of interior span, to reach flow field homogenizing, temperature gradient at nearly wall is improved, the effect of tube wall rate of heat transfer is increased.
Description
One divisional application of present patent application, the applying date of former invention patent application case is 2015-10-13, application
Number it is for " 2015106576902 " and invention and created name《A kind of compound intensified heat-transfer pipe of twisted tape inserts》.
Technical field
The present invention relates to Summarization on heat transfer enhancement in heat exchangers field more particularly to a kind of compound intensified heat-transfers of twisted tape inserts
Pipe.
Background technology
Since the 1970s oil crisis, heat conduction reinforced technology is widely used in all trades and professions and subtracts for energy saving
Row, such as the new and high technologies industry neck such as power, metallurgy, oil, chemical industry convention body industrial circle and aviation, electronics, nuclear energy
Domain.Due to the needs of industrial production and scientific technological advance, heat conduction reinforced technology is widely paid attention to and is grown in recent decades
The development of foot.Whether heat conduction reinforced technology needs external work by it, is divided into actively reinforcing and passive facilitation two types, wherein passively
For reinforcement technique due to not needing external work, mode of operation is simple, highly reliable and more extensive use, in numerous passive facilitation technologies
In, it is a kind of heat transfer enhancement technology of practicality to manage the interior twisted strip that is inserted into, since simple in structure, performance is stable, is easy to assembly and disassembly and repair
The advantages that, the technological transformation and waste heat recovery that can be used for existing heat exchanger are strengthened, and solar water heater, reaction are can be used for
The various fields such as device, nuclear cooling device, new energy, have wide practical use.But existing smooth tube is interior to be inserted into twisted strip mostly all
It is to use single long twisted strip, the structure of twisted strip is single, is extremely effective for laminar flow operating mode, but for turbulent flow operating mode（Re>
10000）, under unit flow resistance power consumption, rate of heat transfer promotes limited extent, and heat transfer comprehensive performance is often less than 1, especially big thunder
Under promise number, heat transfer comprehensive performance is lower.
With the development of heat transfer enhancement technology, in recent years, the famous scholar Arthur E. of external augmentation of heat transfer
Bergles proposes forth generation heat transfer enhancement technology, i.e., compound, the i.e. complex intensifying of two kinds and two or more heat transfer enhancement technologies
Heat transfer technology.Relative to single heat transfer enhancement technology, such as rough rib face enhanced tube（Including band pipe, shaped telescopic tube, helicla flute
Pipe, bellows etc.）Or single twisted strip, Combination Intensified Heat Transfer Technology can play the advantage of two kinds of technologies, be superimposed rate of heat transfer, lead to
Rational design is crossed, heat transfer comprehensive performance more better than single reinforced element can be obtained within the scope of reasonable pressure drop.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of compound intensified heat-transfer pipes of twisted tape inserts, should
A kind of tubular body twisted strip of the compound intensified heat-transfer pipe of twisted tape inserts forms big longitudinal direction in tube hub region and wall section
Whirlpool, longitudinal Vortex have the characteristics that high-efficiency low-resistance, equal to reach flow field so as to implement to manage the high intensity fluid substitution of interior span
Change, improve temperature gradient at nearly wall, increases the effect of tube wall rate of heat transfer.
In order to achieve the above purpose, present invention employs technical solutions below：
A kind of compound intensified heat-transfer pipe of twisted tape inserts, including tube body, and the twisted strip in tubular body is set；The twisted strip is
One end of metal strip is fixed, and another free end rotates a certain angle around its center line with length；The twisted strip of tubular body is along pipe
Body is axial to be laid out with 180 ° or 360 ° for swing circle, a twisted strip unit is formed in each period, on root twisted strip adjacent two
Intersecting angle between a twisted strip unit is 30 ° ~ 90 °.
Preferably, the torsion rate of twisted stripy=1.5 ~ 1.0, torsion rateyDefinition be that twisted strip rotates 180 ° of half pitch P and twisted strip
WidthWRatio.
Preferably, being provided with trepanning or flow-disturbing object on the twisted strip；The flow-disturbing object can be fin, sawtooth, cylinder
Shape flow-disturbing object, spherical shape flow-disturbing object or spike flow-disturbing object.
Preferably, the outer diameter of the tube body, in 20mm or less, tubular body is equipped with single twisted strip.
Preferably, when the outer diameter of the tube body is between 20 ~ 50mm, tubular body is equipped with dual twisted strip；Dual twisted strip
Reversed mutually to revolve, i.e., the direction of rotation of one twisted strip is to rotate clockwise, and the direction of rotation of another twisted strip is rotation counterclockwise.
Preferably, when the outer diameter of the tube body is between 20 ~ 50mm, tubular body is equipped with triple twisted strips；Triple twisted strips
In at least two twisted strips reversely mutually revolve, i.e., the direction of rotation of one twisted strip is to rotate clockwise, and the direction of rotation of a twisted strip is
Rotation counterclockwise.
Preferably, the outer diameter of the tube body, in 50mm or more, tubular body is equipped with quadruple twisted strip；Quadruple twisted strip is in square
Battle array shape arrangement, adjacent two twisted strips reversely mutually revolve.
Preferably, the outer diameter of the tube body, in 50mm or more, tubular body is equipped with five heavy twisted strips；The five heavy twisted strip
Including center twisted strip, and centered on the twisted strip of center arranged in matrix periphery twisted strip；The center twisted strip is to rotate clockwise,
Two adjacent periphery twisted strips reversely mutually revolve.
The present invention uses above-mentioned technical proposal, which is in
Period is laid out, and the intersecting angle between two twisted strip units is 30 ° ~ 90 °, and twisted strip is formed greatly in tube hub region and wall section
Longitudinal Vortex, twisted strip streamwise can induce generation longitudinal Vortex；Under the structure, longitudinal whorl strengthened heat transfer has been given full play to
Advantage, relative to the lateral whirlpool that traditional rough pipe induces, longitudinal Vortex has the characteristics that high-efficiency low-resistance, so as to implement in pipe across
Away from high intensity fluid substitution improve temperature gradient at nearly wall to reach flow field homogenizing, increase the effect of tube wall rate of heat transfer
Fruit.
Description of the drawings
Fig. 1 is the single twisted strip side view in the present invention.
Fig. 2 is the structural parameters schematic diagram of twisted strip of the present invention.
Fig. 3 is the side view of compound intensified heat-transfer pipe in the present invention.
Fig. 4 is the stereogram of compound intensified heat-transfer pipe in the present invention.
Fig. 5 is that the solid of the embodiment of the present invention 1 is attached to partial sectional view.
Fig. 6 is the side view of the embodiment of the present invention 1.
Fig. 7 is the axonometric drawing of the embodiment of the present invention 1.
Fig. 8 is the side view of the single twisted strip of the embodiment of the present invention 1.
Fig. 9 is that the solid of the embodiment of the present invention 2 is attached to partial sectional view.
Figure 10 is the side view of the embodiment of the present invention 2
Figure 11 is the axonometric drawing of the embodiment of the present invention 2.
Figure 12 is the side view of double twisted strips in the embodiment of the present invention 2.
Figure 13 is that the solid of the embodiment of the present invention 3 is attached to partial sectional view.
Figure 14 is the side view of the embodiment of the present invention 3.
Figure 15 is the axonometric drawing of the embodiment of the present invention 3.
Figure 16 is the side view of double twisted strips in the embodiment of the present invention 3.
Figure 17 is the side view for intersecting double twisted strips in the embodiment of the present invention 4.
Figure 18 is the axonometric drawing for intersecting double twisted strip a cycles in the embodiment of the present invention 4.
Figure 19 is the axonometric drawing that the embodiment of the present invention 5 intersects double twisted strip a cycles.
Figure 20 is the axonometric drawing that the embodiment of the present invention 6 intersects double twisted strip a cycles.
Figure 21 is the axonometric drawing that the embodiment of the present invention 7 intersects double twisted strip a cycles.
Figure 22 is the axonometric drawing that the embodiment of the present invention 8 intersects double twisted strip a cycles.
Figure 23 is that the solid of the embodiment of the present invention 9 is attached to partial sectional view.
Figure 24 is the side view of the embodiment of the present invention 9.
Figure 25 is the axonometric drawing of the embodiment of the present invention 9.
Figure 26 is the side view one of three twisted strips in embodiment 9.
Figure 27 is the side view two of three twisted strips in embodiment 9.
Figure 28 is that the solid of the embodiment of the present invention 10 is attached to partial sectional view.
Figure 29 is the side view of the embodiment of the present invention 10.
Figure 30 is the axonometric drawing of the embodiment of the present invention 10.
Figure 31 is the side view one of 10 4 twisted strip of the embodiment of the present invention.
Figure 32 is the side view two of 10 4 twisted strip of the embodiment of the present invention.
Figure 33 is that the solid of the embodiment of the present invention 11 is attached to partial sectional view.
Figure 34 is the axonometric drawing of the embodiment of the present invention 11.
Figure 35 is the side view one of 11 5 twisted strip of the embodiment of the present invention.
Figure 36 is the side view two of 11 5 twisted strip of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings, the preferred embodiments of the invention are described in further detail.
A kind of compound intensified heat-transfer pipe of twisted tape inserts as shown in Fig. 1 ~ 4, including tube body, and be arranged in tubular body
Twisted strip；The twisted strip is that one end of metal strip is fixed, and another free end rotates a certain angle around its center line with length；Tube body
Internal twisted strip is axially laid out with 180 ° or 360 ° for swing circle along tube body, a twisted strip unit is formed in each period, together
Intersecting angle on root twisted strip between two neighboring twisted strip unit is 30 ° ~ 90 °.The torsion rate of the twisted stripy=1.5 ~ 1.0, torsion ratey
Definition be that twisted strip rotates 180 ° of half pitchPWith twisted strip widthWRatio.Trepanning or flow-disturbing object are provided on twisted strip；Flow-disturbing
Object can be fin, sawtooth, cylindric flow-disturbing object, spherical shape flow-disturbing object or spike flow-disturbing object.The tubular body is generally arranged
There is 1 ~ 5 twisted strip, specifically related to the size of outer tube diameter, such as when the outer diameter of tube body is in 20mm or less, tubular body is equipped with
Single twisted strip；When the outer diameter of the tube body is between 20 ~ 50mm, tubular body is equipped with dual twisted strip；The dual reversed phase of twisted strip
Rotation, i.e., the direction of rotation of one twisted strip are to rotate clockwise, and the direction of rotation of another twisted strip is rotation counterclockwise.When the pipe
When the outer diameter of body is between 20 ~ 50mm, tubular body is equipped with triple twisted strips；At least two twisted strips reversely mutually revolve in triple twisted strips,
The direction of rotation of i.e. one twisted strip is to rotate clockwise, and the direction of rotation of a twisted strip is rotation counterclockwise.When the tube body
For outer diameter in 50mm or more, tubular body is equipped with quadruple twisted strip；Quadruple twisted strip is in rectangular arrangement, the reversed phase of adjacent two twisted strips
Rotation.When the outer diameter of the tube body is in 50mm or more, tubular body is equipped with five heavy twisted strips；The five weights twisted strip includes that center is turned round
Band, and centered on the twisted strip of center arranged in matrix periphery twisted strip；The center twisted strip is to rotate clockwise, adjacent two
Periphery twisted strip reversely mutually revolves.The tube body is just（It is remaining）Raised line design pipe, just（It is remaining）Raised line design rib height is preferably 0.5 ~ 2mm, and rib line shakes
Width is preferably 8 ~ 20 mm, and the number of cycles on circumferencial direction is preferably 2 ~ 8, and the pitch in flow direction is preferably 10 ~ 50mm.
Above-mentioned technical proposal takes full advantage of the high-efficiency low-resistance characteristic of longitudinal Vortex, and the present invention designs mostly longitudinal in a kind of pipe
The Combination Intensified Heat Transfer Technology of whirlpool superposition, is combining tube body just（It is remaining）Both the special construction of string rib line and twisted strip can lure
Artificial delivery life is along the longitudinal Vortex flowed to, just（It is remaining）String rib line can induce multiple relatively small one in the region close to tube wall by rib line
The longitudinal Vortex of point, each period on circumferencial direction is just（It is remaining）String rib line can induce generation longitudinal Vortex；Twisted strip is in pipe
Heart district domain forms big longitudinal Vortex with wall section；By the collaboration relay of size longitudinal Vortex, not only for compared with pipe with small pipe diameter, for
Compared with Large Diameter Pipeline, the high intensity fluid substitution for managing interior span can also be implemented, to reach flow field homogenizing, improve temperature ladder at nearly wall
Degree, to make the rate of heat transfer under unit work consumptiom be improved, that is, comprehensive performance of conducting heat is improved.In addition, the biography of the present invention
Hot comprehensive performance is controllable, and structural parameters can be adjusted flexibly according to concrete operations operating mode and flow media.In conjunction with aftermentioned
The structural parameters of attached drawing, the used tube body of the present invention and twisted strip include, as shown in Fig. 2,PRepresent half-section when twisted strip rotates 180 °
Away from length,WRepresent the width of twisted strip；As shown in Fig. 6,LIt represents just（It is remaining）The rib line pitch of raised line design pipe,AIt represents just（It is remaining）
The rib line amplitude of raised line design pipe；As shown in Fig. 7,dIt represents just（It is remaining）The outer diameter of raised line design pipe,eIt represents just（It is remaining）The rib of raised line design pipe is high,tIt represents just（It is remaining）The wall thickness of raised line design pipe,BRepresent the thickness of twisted strip；In additionnIt represents just（It is remaining）The circumferential number of string pattern pipe；Also
Have as shown in Fig. 8,CRepresent the length of pitch when twisted strip is rotated by 360 °；As shown in attached drawing 17 ~ 18,ɑRepresent two neighboring pitch
The angle intersected between twisted strip, the meaning that the structural parameters variable of other figures represents are as described above.
By combining and screening in practice, best structural parameters assembled scheme can be derived that.With reference to above-mentioned implementation
The structure of scheme enumerates the structural parameters assembled scheme of multigroup compound intensified heat-transfer pipe, for further being retouched to the present invention
It states, wherein each embodiment is both needed to combine above structure, and the implementation of the present invention is not limited to this, every to the present invention
Essence is made simple modification or is changed, and the range of technical solution of the present invention is belonged to.In addition, in order to evaluate the property of each embodiment
Can, definition heat transfer comprehensive performance is：, whereinPECRepresent heat transfer comprehensive performance, that is, property
It can evaluation criterion（Performance evaluation criterion,PEC）,Nu 0、NuRespectively represent light pipe and enhanced tube
Dimensionless rate of heat transfer, that is, nusselt number,f 0、fRespectively represent the dimensionless pressure drop i.e. friction factor of light pipe and enhanced tube, same to work(
Under consumption, ifPECMore than 1, then the comprehensive performance that illustrates to conduct heat is improved with respect to light pipe, on the contrary then do not improve.
Embodiment 1：
As shown in attached drawing 5 ~ 8, a kind of outer tube diameter of the compound intensified heat-transfer pipe of twisted tape inserts is in 20mm hereinafter, tube body is
Just（It is remaining）Raised line design pipe, just（It is remaining）The rib line pitch of raised line design pipeL=20mm, rib line amplitudeA=12mm, circumferential rib line numbern=4, outer diameterd=19mm, wall thicknesst=2mm, rib are highe=1.1mm is internally provided with single twisted strip, twisted strip torsion rate y=2.67, half pitchP=32mm, section
Away fromC=64mm, twisted strip thicknessB=1mm, twisted strip widthW=12mm。
Embodiment 2：
As shown in attached drawing 9 ~ 12, a kind of outer tube diameter of the compound intensified heat-transfer pipe of twisted tape inserts is between 20 ~ 50mm, pipe
Body is just（It is remaining）Raised line design pipe, just（It is remaining）The rib line pitch of raised line design pipeL=30mm, rib line amplitudeA=16mm, circumferential rib line numbern=8,
Outer diameterd=32mm, wall thicknesst=3mm, rib are highe=0.8mm；Tubular body is provided with dual twisted strip, dual twisted strip it is oppositely oriented, i.e.,
A piece twisted strip is rotated clockwise around central shaft, and in addition a twisted strip rotates counterclockwise around central shaft, is conducive to improve vortex intensity.
The twisted strip torsion ratey=2.87, half pitchP=33mm, pitchC=66mm, twisted strip thicknessB=1mm, twisted strip widthW=11.5mm。
Embodiment 3：
As shown in attached drawing 13 ~ 16, a kind of outer tube diameter of the compound intensified heat-transfer pipe of twisted tape inserts between 20 ~ 50mm,
Tube body is just（It is remaining）Raised line design pipe, just（It is remaining）The rib line pitch of raised line design pipeL=20mm, rib line amplitudeA=12mm, circumferential rib line numbern=
6, outer diameterd=32mm, wall thicknesst=3mm, rib are highe=1.1mm；Tubular body is provided with dual twisted strip, dual twisted strip it is oppositely oriented,
Be conducive to improve vortex intensity；Twisted strip torsion ratey=2.09, half pitchP=24mm, pitchC=48mm, twisted strip thicknessB=1mm, twisted strip
WidthW=11.5mm.When turbulent flow, opposite light pipe rate of heat transfer maximum can improve 2 times or more, with comprehensive performance of under power consumption, conducting heat
Reach 1.1 or more.
Embodiment 4：
As shown in attached drawing 17 ~ 18, the present embodiment difference from Example 3 is between the twisted strip unit on same root twisted strip
Layout is to intersect, cross angleɑIt it is 90 °, other structures size is the same as embodiment 3；The opposite heat transfer of embodiment 3 comprehensive performance is maximum
It can be improved 8% or more.
Embodiment 5：
As shown in Fig. 19, the present embodiment difference from Example 4 is the friendship between the twisted strip unit on same root twisted strip
It is different to pitch angle, cross angleɑIt it is 75 °, other structures size is the same as embodiment 4.
Embodiment 6：
As shown in Fig. 20, the present embodiment difference from Example 4 is the friendship between the twisted strip unit on same root twisted strip
It is different to pitch angle, cross angleɑIt it is 60 °, other structures size is the same as embodiment 4.
Embodiment 7：
As shown in Fig. 21, the present embodiment difference from Example 4 is the friendship between the twisted strip unit on same root twisted strip
It is different to pitch angle, cross angleɑIt it is 45 °, other structures size is the same as embodiment 4.
Embodiment 8：
As shown in Fig. 22, the present embodiment difference from Example 4 is the friendship between the twisted strip unit on same root twisted strip
It is different to pitch angle, cross angleɑIt it is 30 °, other structures size is the same as embodiment 4.
Embodiment 9：
As shown in attached drawing 23 ~ 27, a kind of outer tube diameter of the compound intensified heat-transfer pipe of twisted tape inserts between 20 ~ 50mm,
Tube body is just（It is remaining）Raised line design pipe, just（It is remaining）The rib line pitch of raised line design pipeL=30mm, rib line amplitudeA=20mm, circumferential rib line numbern=
6, outer diameterd=45mm, wall thicknesst=2.5mm, rib are highe=0.8mm；Tubular body is provided with triple twisted strips, wherein two in triple twisted strips
Root twisted strip it is oppositely oriented, two twisted strips are rotated clockwise around central shaft, and in addition a twisted strip rotates counterclockwise around central shaft；It turns round
Band torsion ratey=2.06, half pitchP=36mm, pitchC=72mm, twisted strip thicknessB=1mm, twisted strip widthW=17.5mm。
Embodiment 10：
As shown in attached drawing 28 ~ 32, a kind of outer tube diameter of the compound intensified heat-transfer pipe of twisted tape inserts is in 50mm or more, tube body
For just（It is remaining）Raised line design pipe, just（It is remaining）The rib line pitch of raised line design pipeL=25mm, rib line amplitudeA=12mm, circumferential rib line numbern=6, outside
Diameterd=57mm, wall thicknesst=3.5mm, rib are highe=1.5mm；Tubular body is provided with quadruple twisted strip, and quadruple twisted strip is in rectangular arrangement,
It is wherein oppositely oriented per adjacent two twisted strips in quadruple twisted strip；Twisted strip torsion ratey=2.5, half pitchP=47.5mm, pitchC=
95mm, twisted strip thicknessB=1mm, twisted strip widthW=19mm.When turbulent flow, intraductal heat transfer rate is with respect to light pipe increase rate up to 2.5
Times, heat transfer comprehensive performance can reach 1.2 or more.
Embodiment 11：
As shown in attached drawing 33 ~ 36, a kind of outer tube diameter of the compound intensified heat-transfer pipe of twisted tape inserts is in 50mm or more, tube body
For just（It is remaining）Raised line design pipe, just（It is remaining）For the structural parameters of raised line design pipe with embodiment 10, tubular body is provided with five heavy twisted strips；Described five
Weight twisted strip include center twisted strip, and centered on the twisted strip of center arranged in matrix periphery twisted strip；Center twisted strip is rotation clockwise
Turn, periphery twisted strip each adjacent two in addition to the twisted strip of center is oppositely oriented；Half pitch of twisted strip, pitch and the same embodiment of thickness
10, twisted strip widthW=15.5mm。
Claims (1)
1. a kind of compound intensified heat-transfer pipe, including tube body, and the twisted strip in tubular body is set；It is characterized in that：The pipe
Body is positive raised line design pipe or cosine line pipe, and positive raised line design or a height of 0.5 ~ 2mm of cosine line rib, rib line amplitude are 8 ~ 20 mm, circumference side
Upward number of cycles is 2 ~ 8, and the pitch in flow direction is 10 ~ 50mm；The twisted strip is that one end of metal strip is fixed, it is another from
It is rotated a certain angle with length around its center line by holding；The twisted strip of tubular body is axially rotation with 180 ° or 360 ° along tube body
Period is laid out, and a twisted strip unit is formed in each period, with the intersecting angle between two neighboring twisted strip unit on root twisted strip
It is 30 ° ~ 90 °；The torsion rate of twisted stripy=1.5 ~ 1.0, torsion rateyDefinition be that twisted strip rotates 180 ° of half pitchPWith twisted strip widthWIt
Ratio；Trepanning or flow-disturbing object are provided on the twisted strip；The flow-disturbing object is fin, sawtooth, cylindric flow-disturbing object, spherical shape are disturbed
Flow object or spike flow-disturbing object；For the outer diameter of the tube body between 20 ~ 50mm, tubular body is equipped with dual twisted strip；Dual twisted strip is anti-
Xiang Xiangxuan, i.e., the direction of rotation of one twisted strip are to rotate clockwise, and the direction of rotation of another twisted strip is rotation counterclockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145072.3A CN108444330A (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510657690.2A CN105300156B (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe of twisted tape inserts |
| CN201810145072.3A CN108444330A (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510657690.2A Division CN105300156B (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe of twisted tape inserts |
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|---|---|
| CN108444330A true CN108444330A (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144949.7A Withdrawn CN108507398A (en) | 2015-10-13 | 2015-10-13 | Compound intensified heat-transfer pipe |
| CN201810144916.2A Withdrawn CN108469199A (en) | 2015-10-13 | 2015-10-13 | Augmentation of heat transfer pipe |
| CN201810145072.3A Withdrawn CN108444330A (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe |
| CN201510657690.2A Expired - Fee Related CN105300156B (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe of twisted tape inserts |
| CN201810144920.9A Withdrawn CN108489316A (en) | 2015-10-13 | 2015-10-13 | The compound intensified heat-transfer pipe of twisted tape inserts |
| CN201810145073.8A Withdrawn CN108489317A (en) | 2015-10-13 | 2015-10-13 | A kind of augmentation of heat transfer pipe |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810144949.7A Withdrawn CN108507398A (en) | 2015-10-13 | 2015-10-13 | Compound intensified heat-transfer pipe |
| CN201810144916.2A Withdrawn CN108469199A (en) | 2015-10-13 | 2015-10-13 | Augmentation of heat transfer pipe |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510657690.2A Expired - Fee Related CN105300156B (en) | 2015-10-13 | 2015-10-13 | A kind of compound intensified heat-transfer pipe of twisted tape inserts |
| CN201810144920.9A Withdrawn CN108489316A (en) | 2015-10-13 | 2015-10-13 | The compound intensified heat-transfer pipe of twisted tape inserts |
| CN201810145073.8A Withdrawn CN108489317A (en) | 2015-10-13 | 2015-10-13 | A kind of augmentation of heat transfer pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106895733B (en) * | 2017-02-08 | 2019-08-06 | 哈尔滨工程大学 | A kind of novel coaxial intersects the thermoexcell of tie and the application tie |
| RU2725307C1 (en) * | 2019-10-11 | 2020-06-30 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) | Multi-form composite bimetallic pipeline |
| CN112728990A (en) * | 2020-12-30 | 2021-04-30 | 佛山科学技术学院 | Heat exchange tube with ball inserted inside |
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2015
- 2015-10-13 CN CN201810144949.7A patent/CN108507398A/en not_active Withdrawn
- 2015-10-13 CN CN201810144916.2A patent/CN108469199A/en not_active Withdrawn
- 2015-10-13 CN CN201810145072.3A patent/CN108444330A/en not_active Withdrawn
- 2015-10-13 CN CN201510657690.2A patent/CN105300156B/en not_active Expired - Fee Related
- 2015-10-13 CN CN201810144920.9A patent/CN108489316A/en not_active Withdrawn
- 2015-10-13 CN CN201810145073.8A patent/CN108489317A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727833A (en) * | 2004-07-30 | 2006-02-01 | 株洲工学院 | Bringing along automatic cleanout inside pipe by teeth at rotational flow mouth, and technique for strengthening heat transfer |
| CN201246993Y (en) * | 2008-06-30 | 2009-05-27 | 刘卫东 | Internal tooth type hot extrusion aluminum pipe |
| CN203443449U (en) * | 2013-08-29 | 2014-02-19 | 山东科技大学 | Combined bond insert |
| CN104180689A (en) * | 2014-08-25 | 2014-12-03 | 哈尔滨工程大学 | Built-in full-length twisted ball projecting tube type heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108489316A (en) | 2018-09-04 |
| CN108507398A (en) | 2018-09-07 |
| CN108469199A (en) | 2018-08-31 |
| CN108489317A (en) | 2018-09-04 |
| CN105300156A (en) | 2016-02-03 |
| CN105300156B (en) | 2018-05-15 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
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