CN103791752A - Heat transfer pipe - Google Patents
Heat transfer pipe Download PDFInfo
- Publication number
- CN103791752A CN103791752A CN201210426111.XA CN201210426111A CN103791752A CN 103791752 A CN103791752 A CN 103791752A CN 201210426111 A CN201210426111 A CN 201210426111A CN 103791752 A CN103791752 A CN 103791752A
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- Prior art keywords
- heat
- transfer pipe
- twisted sheet
- twisted
- transfer
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- 230000004323 axial length Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 25
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 4
- 238000000197 pyrolysis Methods 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000000571 coke Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000005235 decoking Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005495 investment casting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000003416 augmentation Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- -1 ethylene, propylene Chemical group 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat transfer pipe. A twisted piece (1) is arranged in the heat transfer pipe (10). The twisted piece (1) comprises a vertical hole which is formed by penetrating from the upper lateral side of the twisted piece to the lower lateral side of the twisted piece along the axial direction of the heat transfer pipe (10). According to the heat transfer pipe, the heat transfer efficiency can be improved and meanwhile the pressure drop of the fluid which passes through can be reduced.
Description
Technical field
The present invention relates to a kind of heat-transfer pipe, this heat-transfer pipe is specially adapted to heating furnace, especially produces the pyrolysis furnace of ethene.
Background technology
The Fourier theorem of diabatic process is as shown in the formula shown in (1), and wherein q is heat output, and A is heat transfer area, and k is heat transfer coefficient, and t/y is thermograde,
Take the heating furnace in petro chemical industry as example, in the case of heat transfer area (ability by heating furnace determines) and thermograde (ability by furnace tube material and burner determines) definite, unique method that can improve unit are heat output improves heat transfer coefficient exactly.Heat transfer coefficient k is determined by the thermal resistance in the thermal resistance of main fluid, boundary layer, according to the special boundary layer flow theory in Pulan, in the time that real fluid flows along solid wall surface, the one deck that is close to wall fluid as thin as a wafer, will be attached to not slippage of wall, be zero near the flow velocity of the fluid of wall, flow and have a flow boundary layer between main body and wall at fluid, although this boundary layer is very thin, actual conditions are verified, and its heat transmission resistance is but very large.Heat, by after flow boundary layer, just can be delivered to rapidly main body logistics center, therefore, by certain mode attenuate boundary layer, will effectively increase heat output.
CN1121996A discloses a kind of method of producing ethene, the method is to the port of export, the fin one or more regions or Zone Full inner surface of tube wall to be set from the arrival end of boiler tube along the axial of boiler tube in cracking furnace pipe, fin is formed by the axially projection extending spirally on inner surface of tube wall along pipe, and the direction of fin is crossing with the center line of pipe and have a suitable pitch.This invention reaches the object of stirring fluid by the spirality projection on inner surface of tube wall, thereby reaches larger turbulent flow, reduces the loss of pressure drop in conducting heat as far as possible.In this invention, fin is along managing to such an extent that the spiral protrusion that axially extends spirally on tube wall surface forms, or each fin is around tube hub line circumferential derivative annular projection on tube wall surface.Clearly, along with the boiler tube increase of service time, a little less than the coking of table will make the prominent role of spirality more and more in boiler tube, cannot continue the object of heat transfer.
CN1711340A discloses a kind of for the production of the cracking tube in the pyrolysis furnace of ethene, have and be formed on the fin for stirring pipe internal flow tilting on its inner surface and with respect to the center line of pipe, described fin is discrete to be arranged on one or more helical trajectory.The boiler tube of this structure can suppress the pressure loss of boiler tube, but the effect of its diabatic process equally also incurs loss.
CN1260469A discloses a kind of heat-exchange tube of energy diabatic process, this heat-exchange tube is twisted sheet and the integrated boiler tube of pipe that adopts vacuum metling investment pattern precision casting technology to manufacture, and its objective is and improves heat-transfer effect, reduces coking tendency, and serviceability is reliable and stable, long working life.In this invention, the internal diameter that twisted sheet is enhanced heat transfer component in the time of the rotation of its center line along center line upper and lower translation and the track curved surface of process.Adopt the twisted sheet of above-mentioned shape, when fluid is by twisted sheet, because the area of twisted sheet is larger, fluid is still larger by the pressure drop of enhanced heat transfer component.For tubular heater, pressure drop is lower, is more conducive to save energy.For pyrolysis furnace, the reduction of pressure drop will be conducive to the optionally raising of cracking reaction, thereby improves object product as the yield of ethylene, propylene.
Therefore the pressure drop that, how further reduces enhanced heat transfer component in improving heat-transfer effect is the important research direction of enhanced heat transfer component.
Summary of the invention
Object of the present invention is in order to overcome heat-transfer pipe of the prior art improving still larger shortcoming of the pressure drop that causes in heat-transfer effect, and a kind of heat-transfer pipe that to the greatest extent at utmost reduces fluid-pressure drop when improving heat-transfer effect is provided.
The present inventor finds by research, the heat-transfer pipe that comprises twisted sheet at fluid through out-of-date, what change near the streamline of tube hub fluid is less, and there is larger change in the streamline of the fluid of close tube wall, be spirality streamline, this part spirality streamline is that diabatic process has played crucial effect just, therefore, only need to change the flow direction near near the streamline of fluid tube wall, make it produce flow-disturbing, just the heat-transfer effect of heat-transfer pipe effectively.That is, when the track curved surface of process, remove part distortion along center line upper and lower translation when the twisted sheet internal diameter that is heat-transfer pipe around its center line rotation time, can reduce the resistance that twisted sheet produces the fluid flowing through, thereby can reduce droop loss; Meanwhile, near the twisted sheet remaining in tube wall still can make the fluid flowing through produce flow-disturbing, augmentation of heat transfer, thus can obtain having concurrently the heat-transfer pipe of less droop loss and larger heat-transfer effect.Moreover, heat-transfer pipe provided by the invention, logistics produces large disturbance at twisted sheet place, when for millisecond furnace, largely can reduce coking.Find based on this, completed the present invention.
The invention provides a kind of heat-transfer pipe 10, in this heat-transfer pipe 10, be provided with twisted sheet 1, wherein, this twisted sheet 1 has the vertical core that runs through formation along the axial direction of described heat-transfer pipe 10 from upper side edge to the lower side of described twisted sheet.
Preferably, axisymmetricly, the center line of described vertical core overlaps with the center line of described heat-transfer pipe 10 this vertical core.
Preferably, the ratio of the internal diameter of the aperture of described vertical core and heat-transfer pipe 10 is 0.05-0.95, is preferably 0.05-0.5.
Preferably, the number of the twisted sheet 1 arranging in described heat-transfer pipe 10 is 1-24, is preferably 2-10.
Preferably, multiple described twisted sheets 1 are set in described heat-transfer pipe 10, the ratio of the axial distance between adjacent described twisted sheet 1 and the internal diameter of heat-transfer pipe 10 is 15-75, more preferably 25-50.
In the time multiple described twisted sheet 1 being set in described heat-transfer pipe 10, preferably, the cross section of adjacent twisted sheet 1 is mutually vertical.
Preferably, the ratio of the internal diameter of the axial length of described twisted sheet 1 and described heat-transfer pipe 10 is 1-10, is preferably 1-6, more preferably 2-4.
Preferably, the anglec of rotation of described twisted sheet 1 is 90-1080 °, is preferably 120-360 °.
Preferably, the ratio of the thickness of described twisted sheet 1 cross section and the pipe thickness of heat-transfer pipe 10 is 0.2-2:1, and with the ratio of the internal diameter of described heat-transfer pipe 10 be 0.01-0.02:1.
Preferably, the number range of the internal diameter of described heat-transfer pipe 10 is 5-300mm; The thickness of the tube wall of described heat-transfer pipe 10 is 4-20mm.
Preferably, described heat-transfer pipe adopts the one in vacuum metling investment pattern precision casting technology, forging and welding to process.
By technique scheme, thereby the resistance that heat-transfer pipe of the present invention can reduce fluid while flowing through reduces the pressure drop of the fluid passing through, and improves the heat transfer efficiency of heat-transfer pipe simultaneously.
Other features and advantages of the present invention are described in detail the specific embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is the axial, cross-sectional view that the present invention has the heat-transfer pipe of two twisted sheets;
Fig. 2 is the view in transverse section of heat-transfer pipe;
Fig. 3 is the side view of heat-transfer pipe as shown in Figure 1, wherein supposes that heat-transfer pipe is transparent, therefore can see the structural representation of twisted sheet within heat-transfer pipe.
Description of reference numerals
10 heat-transfer pipe 1 twisted sheets
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality of use typically refers to the direction of heat-transfer pipe of the present invention under working condition, the namely direction shown in accompanying drawing as " upper and lower, left and right ".The center line of heat-transfer pipe refers to that heat-transfer pipe is under working condition, and the cylinder that heat-transfer pipe forms is along the center line of axis direction.
As shown in Figure 1-Figure 3, according to heat-transfer pipe 10 of the present invention, in this heat-transfer pipe 10, be provided with twisted sheet 1, wherein, this twisted sheet 1 has the vertical core that runs through formation along the axial direction of described heat-transfer pipe 10 from upper side edge to the lower side of described twisted sheet.
Such heat-transfer pipe can utilize the rotation of fluid self, attenuate the boundary layer of fluid, to reach the object of augmentation of heat transfer.In heat-transfer pipe 10 of the present invention, on twisted sheet, there is vertical core, thereby improving in heat-transfer effect, reduced convection cell and flow through the resistance of heat-transfer pipe 10.Heat-transfer pipe, owing to having vertical core, is convenient to carry out coke cleaning.
In prior art, twisted sheet does not have vertical core conventionally, can be understood as a line segment in horizontal direction around himself mid point rotation, go back in the vertical direction upwards or translation downwards and the track curved surface of process simultaneously, and be provided with in the cross section of part pipeline section of twisted sheet at heat-transfer pipe, the cross section of twisted sheet always is the internal diameter of heat-transfer pipe cross section circle.Twisted sheet comprises a pair of upper side edge being parallel to each other and lower side, and a pair of distortion limit, the equal diameters of this pair of upper side edge and lower side and heat-transfer pipe, and two distortion limits contact with the inwall of heat-transfer pipe all the time.
According to heat-transfer pipe of the present invention, this heat-transfer pipe 10 comprises twisted sheet 1, as shown in Figure 1-Figure 3, has the vertical core running through from upper side edge to the lower side of twisted sheet along the axial direction of heat-transfer pipe 10 on this twisted sheet 1,, equal in length on center line of length in the axial direction of vertical core and twisted sheet.Have after vertical core, the therefrom separated part that is divided into two distortions of twisted sheet, that is, be provided with in the cross section of heat transfer pipeline section part of twisted sheet, and the cross section of twisted sheet 1 is two line segments that are connected with circumference on heat-transfer pipe 10 cross section diameter of a circles.
For common heat-transfer pipe, the main thermal resistance of tube fluid heat exchange concentrates on the low regime of laminar sublayer, but for heat transfer heat pipe of the present invention, the piston flow of tube fluid changes rotating flow, improve tangential velocity, destroyed original laminar flow layer, attenuate boundary layer, increase heat transfer coefficient, improved the heat-transfer effect of heat-transfer pipe.
And, owing to thering is vertical core on twisted sheet 1, thereby hydraulic decoking head and scale removal head can be inserted in heat-transfer pipe, to carry out mechanical decoking and scale removal.
In a kind of preferred embodiment of the present invention, on the center line of the center of the vertical core in heat-transfer pipe 10 in heat-transfer pipe 10, and vertical core is about center line symmetry.Under this kind of situation, on the one or more twisted sheet 1 in heat-transfer pipe 10, form the center line symmetry of hole remainder afterwards about heat-transfer pipe 10.That is to say, for twisted sheet, form vertical core remainder afterwards and be separated from each other and symmetry, the active force that symmetrical structure can make each heat exchange reinforcement in heat-transfer pipe 10 be subject to fluid is like this even.
According to the present invention, preferably, the center line of described vertical core overlaps with the center line of described heat-transfer pipe 10.
Preferably, the ratio of the internal diameter of the aperture of described vertical core and heat-transfer pipe 10 is 0.05-0.95, more preferably 0.05-0.5.In this preferred embodiment, provide the diameter preferred value scope of the vertical core of heat-transfer pipe 10.The number range of above-mentioned diameter is to arrange according to general experience.In the time that this heat-transfer pipe is applied to millisecond furnace, owing to will carrying out mechanical decoking and scale removal, therefore the minimum of a value of the diameter of this vertical core should be as the criterion can make coke cleaning head and scale removal head stretch into heat-transfer pipe 10.For example, the diameter of existing coke cleaning head is 20mm, and the diameter in corresponding hole is 20mm.
Preferably, the number of the twisted sheet arranging in described heat-transfer pipe 10 is 1-24, more preferably 2-10.
Under twisted sheet is multiple situation, twisted sheet is not to arrange in the whole length of heat-transfer pipe 10 conventionally, but subsection setup is on heat-transfer pipe 10, in described heat-transfer pipe 10, arrange in the situation of multiple described twisted sheets 1, preferably, the ratio of the axial distance between adjacent twisted sheet 1 and the internal diameter of heat-transfer pipe 10 is 15-75, more preferably 25-50.Piecewise constantly becomes rotating flow by the fluid in pipe from piston flow like this, improves heat transfer efficiency.This preferred embodiment is the general range arranging according to the length of heat-transfer pipe 10, and the present invention is to this and be not construed as limiting, and the number of the twisted sheet that any and length heat-transfer pipe 10 adapt and axial spacing are all within protection scope of the present invention.The cross section of further preferably, adjacent twisted sheet 1 is mutually vertical.It should be noted that, in the time that heat-transfer pipe comprises plural twisted sheet, the aperture of the vertical core of multiple twisted sheets is not necessarily identical, and the position that vertical core arranges is also not necessarily identical.That is to say, two twisted sheets in this heat-transfer pipe are not necessarily identical.
Conventionally, term " pitch " refers to the axial length after the upper side edge Rotate 180 degree of twisted sheet.Term " distortion ratio " refers to the ratio of the internal diameter of pitch and heat-transfer pipe.This distortion is than the length that has determined each heat-transfer pipe, and the anglec of rotation of twisted sheet has determined the degreeof tortuosity of twisted sheet, thereby affects heat transfer efficiency.The distortion ratio of twisted sheet can be adjusted according to actual conditions, below has only provided preferable range under normal circumstances, protection scope of the present invention is not limited.Preferably, the ratio between the axial length of the twisted sheet 1 in heat-transfer pipe 10 of the present invention and the internal diameter of described heat-transfer pipe 10 is 1-10, is preferably 1-6, more preferably 2-4.
The anglec of rotation of described twisted sheet is 90-1080 °, more preferably 120-360 °.1080 ° is 3 circles, that is to say that twisted sheet can rotate at most 3 circles.In the present invention, the anglec of rotation of twisted sheet refers to that the line segment in above-mentioned horizontal direction forms the angle that described twisted sheet rotates.This anglec of rotation has impact to the degree of tube fluid rotating flow, and under the prerequisite of identical distortion ratio, the anglec of rotation is larger, and the tangential velocity of fluid is just larger.But the present invention is not limited to the value of the above-mentioned anglec of rotation, any applicable rotation angle value can be with in the present invention.
According to the present invention, although the present invention does not have special requirement to the thickness of described twisted sheet, preferably, the ratio of the thickness of described twisted sheet 1 cross section and the pipe thickness of heat-transfer pipe 10 is 0.2-2:1, and the ratio of the thickness of described twisted sheet 1 cross section and the internal diameter of described heat-transfer pipe 10 is 0.01-0.02:1.
Those skilled in the art can know, and the internal diameter of described heat-transfer pipe 10 can suitably be adjusted according to the field of application, for example, when described heat-transfer pipe 10 is during for all-radiant furnace, the internal diameter of described heat-transfer pipe 10 is 5-300mm, is preferably 20mm-50mm, more preferably 50-200mm.
Those skilled in the art can know, and the requirement of strength that the thickness of the tube wall of described heat-transfer pipe 10 can heat-transfer pipe determines, preferably, the thickness of the tube wall of described heat-transfer pipe 10 is 4-20mm, is preferably 5mm-15mm.
According to the present invention, described heat-transfer pipe 10 adopt vacuum metling investment pattern precision casting technology, forging or welding in one process.Therefore, can manufacture simply, conveniently, inexpensively heat-transfer pipe.In the time that heat-transfer pipe of the present invention adopts foundry engieering to make, there is solderability, can by welding method, heat-transfer pipe be connected in the boiler tube of for example pyrolysis furnace easily.
According to heat-transfer pipe of the present invention, described heat-transfer pipe is made into integration, and the heat-transfer pipe of this structure is not easy to damage, and Stability Analysis of Structures, long working life.
It should be noted that; the above-mentioned the preferred embodiment of the present invention of only having enumerated; and can suitably adjust in protection scope of the present invention; for example, in the time multiple twisted sheet 1 being set in heat-transfer pipe 10; distance between each twisted sheet 1 is not etc.; distortion ratio and/or the anglec of rotation of each twisted sheet 1 are different, and multiple twisted sheets 1 can be set to respectively the twisted sheet 1 of single twisted sheet or mutual square crossing.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a heat-transfer pipe, is provided with twisted sheet (1) in this heat-transfer pipe (10), it is characterized in that, this twisted sheet (1) has the vertical core that runs through formation along the axial direction of described heat-transfer pipe (10) from upper side edge to the lower side of described twisted sheet.
2. heat-transfer pipe according to claim 1, is characterized in that, axisymmetricly, the center line of described vertical core overlaps with the center line of described heat-transfer pipe (10) described vertical core.
3. heat-transfer pipe according to claim 1 and 2, is characterized in that, the ratio of the internal diameter of the aperture of described vertical core and heat-transfer pipe (10) is 0.05-0.95.
4. according to the heat-transfer pipe described in any one in claim 1-3, it is characterized in that, the number of the twisted sheet arranging in described heat-transfer pipe (10) is 1-24, is preferably 2-10.
5. heat-transfer pipe according to claim 4, is characterized in that, multiple described twisted sheets (1) are set in described heat-transfer pipe (10), and the ratio of the internal diameter of the axial distance between adjacent described twisted sheet (1) and heat-transfer pipe (10) is 15-75, preferably 25-50.
6. heat-transfer pipe according to claim 5, is characterized in that, the cross section of adjacent twisted sheet (1) is mutually vertical.
7. heat-transfer pipe according to claim 1, is characterized in that, the ratio of the internal diameter of the axial length of described twisted sheet (1) and described heat-transfer pipe (10) is 1-10, is preferably 1-6, more preferably 2-4.
8. heat-transfer pipe according to claim 1, is characterized in that, the anglec of rotation of described twisted sheet (1) is 90-1080 °, is preferably 120-360 °.
9. heat-transfer pipe according to claim 1, it is characterized in that, the ratio of the thickness of described twisted sheet (1) cross section and the pipe thickness of heat-transfer pipe (10) is 0.2-2:1, and the ratio of the thickness of described twisted sheet (1) cross section and the internal diameter of described heat-transfer pipe (10) is 0.01-0.02:1.
10. according to the heat-transfer pipe described in any one in claim 1-9, it is characterized in that, the number range of the internal diameter of described heat-transfer pipe (10) is 5-300mm; The thickness of the tube wall of described heat-transfer pipe (10) is 4-20mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710124181.2A CN107421370A (en) | 2012-10-30 | 2012-10-30 | A kind of heat-transfer pipe |
| CN201210426111.XA CN103791752A (en) | 2012-10-30 | 2012-10-30 | Heat transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426111.XA CN103791752A (en) | 2012-10-30 | 2012-10-30 | Heat transfer pipe |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710124181.2A Division CN107421370A (en) | 2012-10-30 | 2012-10-30 | A kind of heat-transfer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103791752A true CN103791752A (en) | 2014-05-14 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210426111.XA Pending CN103791752A (en) | 2012-10-30 | 2012-10-30 | Heat transfer pipe |
| CN201710124181.2A Pending CN107421370A (en) | 2012-10-30 | 2012-10-30 | A kind of heat-transfer pipe |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710124181.2A Pending CN107421370A (en) | 2012-10-30 | 2012-10-30 | A kind of heat-transfer pipe |
Country Status (1)
| Country | Link |
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| CN (2) | CN103791752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724448A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | Augmentation of heat transfer pipe, pyrolysis furnace and Atmospheric vacuum heating furnace |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62268994A (en) * | 1986-05-16 | 1987-11-21 | Agency Of Ind Science & Technol | Heat transfer promoting device |
| JPH01318865A (en) * | 1988-06-17 | 1989-12-25 | Sanyo Electric Co Ltd | Generator for absorption refrigerator |
| CN2101210U (en) * | 1991-09-24 | 1992-04-08 | 上海船用柴油机研究所 | High-efficient low resistant heat exchanger |
| CN1116963A (en) * | 1994-04-19 | 1996-02-21 | 小久夫 | Element of mixing apparatus and making of same |
| CN1260469A (en) * | 1998-09-16 | 2000-07-19 | 中国石油化工集团公司 | Heat exchange pipe and its manufacture method and application |
| JP2009186063A (en) * | 2008-02-05 | 2009-08-20 | Tokyo Forming Kk | Heat exchanger and its manufacturing method |
| CN101846469A (en) * | 2009-03-26 | 2010-09-29 | 中国石油化工股份有限公司 | Heat exchanger with twisted sheet |
| CN202063878U (en) * | 2010-12-04 | 2011-12-07 | 卓然(靖江)设备制造有限公司 | Novel twisted slice tube of heating furnace |
-
2012
- 2012-10-30 CN CN201210426111.XA patent/CN103791752A/en active Pending
- 2012-10-30 CN CN201710124181.2A patent/CN107421370A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62268994A (en) * | 1986-05-16 | 1987-11-21 | Agency Of Ind Science & Technol | Heat transfer promoting device |
| JPH01318865A (en) * | 1988-06-17 | 1989-12-25 | Sanyo Electric Co Ltd | Generator for absorption refrigerator |
| CN2101210U (en) * | 1991-09-24 | 1992-04-08 | 上海船用柴油机研究所 | High-efficient low resistant heat exchanger |
| CN1116963A (en) * | 1994-04-19 | 1996-02-21 | 小久夫 | Element of mixing apparatus and making of same |
| CN1260469A (en) * | 1998-09-16 | 2000-07-19 | 中国石油化工集团公司 | Heat exchange pipe and its manufacture method and application |
| JP2009186063A (en) * | 2008-02-05 | 2009-08-20 | Tokyo Forming Kk | Heat exchanger and its manufacturing method |
| CN101846469A (en) * | 2009-03-26 | 2010-09-29 | 中国石油化工股份有限公司 | Heat exchanger with twisted sheet |
| CN202063878U (en) * | 2010-12-04 | 2011-12-07 | 卓然(靖江)设备制造有限公司 | Novel twisted slice tube of heating furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724448A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | Augmentation of heat transfer pipe, pyrolysis furnace and Atmospheric vacuum heating furnace |
| CN109724448B (en) * | 2017-10-27 | 2021-04-13 | 中国石油化工股份有限公司 | Enhanced heat transfer tube, cracking furnace and atmospheric and vacuum heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107421370A (en) | 2017-12-01 |
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Application publication date: 20140514 |
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