CN102889813B - Double-finned tube combined heat exchange component for high efficiency vaporizer - Google Patents
Double-finned tube combined heat exchange component for high efficiency vaporizer Download PDFInfo
- Publication number
- CN102889813B CN102889813B CN201210401081.7A CN201210401081A CN102889813B CN 102889813 B CN102889813 B CN 102889813B CN 201210401081 A CN201210401081 A CN 201210401081A CN 102889813 B CN102889813 B CN 102889813B
- Authority
- CN
- China
- Prior art keywords
- outer tube
- tube
- inner tube
- heat exchange
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a double-finned tube combined heat exchange component for a high efficiency vaporizer, and is characterized by comprising an outer tube, an inner tube and a spiral turbulent flow rod, wherein the outer tube is vertically arranged; outer tube fins are axially arranged on the outer side wall of the side tube; the inner tube is sleeved in the outer tube; inner tube fins are axially arranged on the outer side wall of the inner tube; the inner tube is positioned at the lower half of the outer tube; the spiral turbulent flow rod is sleeved in the outer tube, positioned on the upper half of the outer tube, and connected at the top of the inner tube; and the section of the spiral turbulent flow rod is in cross shape. According to the double-finned tube combined heat exchange component for the high efficiency vaporizer, the possibility of outer tube freezing in the vaporization process of LNG (liquefied natural gas) is reduced, the turbulivity of flow field in the tube is increased; and the double-finned tube combined heat exchange component has the characteristics of high-efficient heat transfer, simple manufacturing, precise design, flexible installation and the like.
Description
Technical field:
The present invention relates to a kind of LNG of being applicable to vaporizer high-performance heat transfer components, especially refer to twin fin pipe combination heat exchange element for a kind of high-efficient gasification device.
Background technology
LNG vaporization refers to the technology of utilizing vaporizer that the LNG of utmost point low temperature is vaporized and also exported to approaching normal temperature, and the vaporising device of active service adopts open-frame type vaporizer as main flow scheme mostly in the world.
Open-frame type vaporizer adopts the heat transfer unit pipe welding townhouse of special tectonic is formed to heat exchanger plates bundle, and LNG enters plate bundle by bottom, by collecting the distribution of distributor pipe even structure, enters each heat transfer unit pipe.Adopt seawater as thermal source, by collecting distributor pipe even structure, spray to heat exchanger plates bunchy top portion, at each heat transfer unit tube outer surface, form falling liquid film and flow, thereby the heat transfer unit pipe inside mobile natural gas that makes progress is heated and reach the object of final vaporization.
In use, heat transfer unit pipe outer wall is near the lower end of gas inlet for open-frame type vaporizer, and LNG and pipe off-lying sea water direct heat-exchange due to very low temperature in pipe, cause ocean temperature sharply to decline.When ocean temperature is during lower than freezing point under corresponding state, seawater just can freeze at heat transfer unit pipe outer wall, thereby affect the whole heat transfer property of heat exchanger tube, and then affect complete machine running efficiency and the output quantity of vaporizing.
For avoiding the long-term erosion of seawater and corrosion, heat transfer unit pipe is selected property aluminum alloy materials, and carries out special sprayed surface processing at heat-transfer pipe outer wall.
Along with the sharp increase of China LNG consumption figure and large import, the research of the LNG vaporization technology relative deficiency that seems.One of core technology that special construction high-performance heat exchange unit pipe is open-frame type vaporizer.The whole dependence on import of open-frame type vaporizer of current China, existing vaporization heat exchanger tube, its heat transfer unit tube outer surface is irregular convex shape, inside pipe wall adopts circumferentially uniform fine and closely woven inner fin.Such version can effectively improve the heat transfer area of outer tube inside and outside wall, has increased the turbulivity of medium in outer tube pipe simultaneously.Because this structure exists the difficulty of processing of certain degree, Mold Making is complicated, and existing mold can not meet seamless extrusion manufacture, because particular aluminum alloy processing one-shaping technique is still immature, has hindered it and has applied simultaneously.
Summary of the invention
The present invention is for avoiding the existing weak point of above-mentioned prior art, provide a kind of conduct heat efficient, manufacture simple, design twin fin pipe combination heat exchange element for high-efficient gasification device accurate, flexible for installation, suppress heat exchange element bottom near the icing phenomenon of LNG porch.
The present invention is that technical solution problem adopts following technical scheme:
Twin fin pipe combination heat exchange element for high-efficient gasification device of the present invention, its design feature is to arrange:
One outer tube, is to erect and installs, and outer tube fin is set vertically on the lateral wall of described outer tube;
One inner tube, is sleeved in described outer tube, and inner tube fin is set vertically on the lateral wall of described inner tube, and described inner tube is in the lower semisection of described outer tube;
One helical form turbulator rod, is sleeved in described outer tube, is in the upper semisection of described outer tube and is undertaken on the top of described inner tube, and the cross section of described helical form turbulator rod is " ten " word.
Twin fin pipe combination heat exchange element for high-efficient gasification device of the present invention, its design feature is also:
The bottom of described inner tube is concordant with the bottom of outer tube, and described helical form turbulator rod is concordant with the top of described outer tube.
The height of described inner tube is half of outer tube height.
Described outer tube fin is concordant with described outer tube bottom, and highly more described outer length of tube is slightly short, and forms on top the conical surface of splaying.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is divided into whole heat exchange length near the vaporization section of bottom and the bringing-up section at close top by inner and outer tubes, in vaporization section, owing to there being the gap of inner tube and outer tube, make LNG in gap prior to the vaporization of inner tube inside, and then the LNG of inner tube inside is heated in continuation as thermal source, such result has caused the raising of outer tube hull-skin temperature, has effectively suppressed freezing of seawater.
2, the present invention just arranges turbulator rod on inner pipe, has effectively increased the flow turbulence degree of natural gas in bringing-up section, has improved heat transfer efficiency.
3, the present invention manufactures simply, and manufacture and maintenance cost are low;
4, in the present invention because inner tube diameter and fin height are easy to control, can be based on heat transfer model according to the Area Ratio that adapts to flow area in the operating condition design adjusting play circulation area size of different disposal amount and interval area and inner tube pipe, thus realize accurate design and the control of heat transfer;
When 5, in the present invention, adjacent outer tube soldering group is dressed up heat transfer plate bundle, only need be by the outer tube fin spot welding townhouse of Arbitrary Relative position.
Accompanying drawing explanation
Fig. 1 is plan structure schematic diagram of the present invention;
Fig. 2 is vertical section of the present invention schematic diagram;
Number in the figure: 1 outer tube fin, 2 outer tubes, 3 turbulator rods, 4 inner tubes, 5 inner tube fins.
The specific embodiment
Referring to Fig. 2, Fig. 3, in the present embodiment, high-efficient gasification device is to arrange by the version of twin fin pipe combination heat exchange element:
One outer tube 2, is to erect and installs, and outer tube fin 1 is set vertically on the lateral wall of outer tube 2;
One inner tube 4, is sleeved in outer tube 2, and inner tube fin 5 is set vertically on the lateral wall of inner tube 4, and inner tube 4 is in the lower semisection of outer tube 2;
One helical form turbulator rod 3, is sleeved in outer tube 2, is in the upper semisection of outer tube 2 and is undertaken on the top of inner tube 4, and the cross section of helical form turbulator rod is " ten " word.
In the present embodiment, the bottom of inner tube is concordant with the bottom of outer tube, and helical form turbulator rod is concordant with the top of outer tube, and the height of inner tube can be half of outer tube height, and outer tube fin is concordant with outer tube bottom; For the ease of the installation of follow-up spray equipment with improve sprayed sea water in the uniformity of outer tube 2 outer surface flow distribution, the outer length of tube of the height of outer tube fin is slightly short, and at the top formation conical surface of splaying.
LNG to be vaporized enters the gap of 4 of the inside of inner tube 4 and outer tube 2 and inner tubes, LNG in gap is owing to directly vaporizing prior to the LNG in inner tube 2 with seawater to make heat exchange, then as the LNG in thermal source heating inner tube 2, such result has caused the raising of outer tube hull-skin temperature, thereby has suppressed freezing of seawater.
Caliber and the fin height of inner tube depend on technology Calculation, can be based on heat transfer model according to the Area Ratio that adapts to flow area in the operating mode detailed design adjusting play circulation area size of different disposal amount and interval area and inner tube 4 pipes, thus realize accurate design and the control of heat transfer.
The number of fins of outer tube can be taked to be circumferentially evenly arranged for 6 or 8, forms plate bundle, and then be assembled into vaporizer heat exchange module by the outer tube fin of adjacent outer tube 2 relative positions 1 being carried out to spot welding townhouse.
Outer tube, inner tube and turbulator rod all can extrusion modlings.
Claims (5)
1. for high-efficient gasification device, twin fin pipe combines heat exchange element, it is characterized in that arranging:
One outer tube, is to erect and installs, and outer tube fin is set vertically on the lateral wall of described outer tube;
One inner tube, is sleeved in described outer tube, and inner tube fin is set vertically on the lateral wall of described inner tube, and described inner tube is in the lower semisection of described outer tube;
One helical form turbulator rod, is sleeved in described outer tube, is in the upper semisection of described outer tube and is undertaken on the top of described inner tube, and the cross section of described helical form turbulator rod is " ten " word;
Described outer tube fin is concordant with described outer tube bottom, and highly more described outer length of tube is slightly short, and forms on top the conical surface of splaying.
2. twin fin pipe combination heat exchange element for high-efficient gasification device according to claim 1, is characterized in that: the bottom of described inner tube is concordant with the bottom of outer tube, and described helical form turbulator rod is concordant with the top of described outer tube.
3. twin fin pipe combination heat exchange element for high-efficient gasification device according to claim 1, is characterized in that: the height of described inner tube is half of outer tube height.
4. twin fin pipe combination heat exchange element for high-efficient gasification device according to claim 1, it is characterized in that: the number of fins of described outer tube can be 6 or 8, and employing is circumferentially evenly arranged.
5. twin fin pipe combination heat exchange element for high-efficient gasification device according to claim 1, is characterized in that: adjacent outer tube forms plate bundle by the outer tube fin spot welding link on relative position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210401081.7A CN102889813B (en) | 2012-10-19 | 2012-10-19 | Double-finned tube combined heat exchange component for high efficiency vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210401081.7A CN102889813B (en) | 2012-10-19 | 2012-10-19 | Double-finned tube combined heat exchange component for high efficiency vaporizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889813A CN102889813A (en) | 2013-01-23 |
| CN102889813B true CN102889813B (en) | 2014-09-10 |
Family
ID=47533405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210401081.7A Active CN102889813B (en) | 2012-10-19 | 2012-10-19 | Double-finned tube combined heat exchange component for high efficiency vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889813B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673714B (en) * | 2013-12-27 | 2015-12-02 | 无锡佳龙换热器股份有限公司 | A kind of multiple stage fluid radiating fin |
| CN103743278B (en) * | 2014-01-16 | 2016-09-21 | 中国船舶重工集团公司第七二五研究所 | A kind of inner tube for open-frame vaporizer heat-exchange tube |
| CN105651104B (en) * | 2016-01-04 | 2018-02-27 | 郑州轻工业学院 | A kind of LNG air temperature type nano-fluid heat exchanger tubes of antifrost |
| CN106197083A (en) * | 2016-08-30 | 2016-12-07 | 中国海洋石油总公司 | A kind of open-frame type gasifier heat exchanger tube |
| CN107356149B (en) * | 2017-03-23 | 2023-09-05 | 托普工业(江苏)有限公司 | Inner finned tube heat exchanger with micro-wedge structure |
| CN107270763B (en) * | 2017-03-23 | 2023-09-05 | 托普工业(江苏)有限公司 | Inner fin tube heat exchanger |
| CN107084403A (en) * | 2017-06-18 | 2017-08-22 | 深圳峰鸣群宇科技有限公司 | A kind of annulated column nested type liquid fuel vaporization device |
| CN108302322B (en) * | 2018-01-23 | 2020-02-07 | 北京东方通捷燃气有限责任公司 | Gas output pipeline of liquefied natural gas storage tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1762639A1 (en) * | 2005-09-13 | 2007-03-14 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Heat transfer tube for LNG vaporizer, its production method, and LNG vaporizer using such heat transfer tubes |
| CN201803621U (en) * | 2010-09-30 | 2011-04-20 | 濮阳市联众兴业化工有限公司 | Heat exchanger |
| CN201903280U (en) * | 2010-12-21 | 2011-07-20 | 甘肃蓝科石化高新装备股份有限公司 | Efficient star-shaped heat exchange tube for seawater open-frame type gasifier |
| CN202101591U (en) * | 2011-05-24 | 2012-01-04 | 苏州新锐低温设备有限公司 | Fin type heat exchange tube |
-
2012
- 2012-10-19 CN CN201210401081.7A patent/CN102889813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1762639A1 (en) * | 2005-09-13 | 2007-03-14 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Heat transfer tube for LNG vaporizer, its production method, and LNG vaporizer using such heat transfer tubes |
| CN201803621U (en) * | 2010-09-30 | 2011-04-20 | 濮阳市联众兴业化工有限公司 | Heat exchanger |
| CN201903280U (en) * | 2010-12-21 | 2011-07-20 | 甘肃蓝科石化高新装备股份有限公司 | Efficient star-shaped heat exchange tube for seawater open-frame type gasifier |
| CN202101591U (en) * | 2011-05-24 | 2012-01-04 | 苏州新锐低温设备有限公司 | Fin type heat exchange tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102889813A (en) | 2013-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102889813B (en) | Double-finned tube combined heat exchange component for high efficiency vaporizer | |
| CN203671912U (en) | Water tank for air source heat pump water heater | |
| CN203231674U (en) | Metal mesh-based corrugated pipe type phase change heat storage device | |
| CN203163354U (en) | Parallel flow evaporative condenser | |
| CN202281526U (en) | Coil pipe type radiator of cooling tower | |
| CN202153112U (en) | Falling film evaporating heat exchange tube with fins formed by wire mesh | |
| CN203413989U (en) | Shell-and-tube type heat exchanger | |
| CN202770260U (en) | Open-frame natural gas vaporizing device | |
| CN201832673U (en) | Water or oil bath with built-in hollow spiral tube for cooling | |
| CN110822976A (en) | Heat transfer pipe for open-frame seawater vaporizer | |
| CN103245228B (en) | Shell and tube exchanger and the using method in sea-farming thereof | |
| CN202692733U (en) | Fin condensing pipe provided with liquid absorption core body | |
| CN201748713U (en) | High-efficiency compact heat exchanger | |
| CN204923933U (en) | Evaporative condenser | |
| CN105318763A (en) | Vertical-type phase-change thermal storage tank | |
| CN204007260U (en) | Vertical phase-change heat storage can | |
| CN106017169A (en) | LNG vaporizer adopting self-circulation intermediate and implementation method | |
| CN202613635U (en) | Ice storage device with compact structure | |
| CN202836308U (en) | Low fin tube and evaporation-cooled device adopting the same | |
| CN102706037B (en) | Device for supplying heat to water resource heat pump by combination of solar energy and air energy | |
| CN201490842U (en) | Air cooler for motor | |
| CN206456802U (en) | Heating ring pipe and crude oil storage tank with same | |
| CN204944248U (en) | A kind of oil product residual heat using device | |
| CN205843449U (en) | A kind of LNG vaporization device utilizing phase-change heat-exchange technology | |
| CN204478870U (en) | High-voltage cast-aluminum heating installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 29 Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 29 Patentee before: HEFEI GENERAL MACHINERY Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: High tech Zone of Hefei city of Anhui Province in 230088 Lake Road No. 29 Patentee before: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |