CN202793134U - Efficient heat pipe for liquefied natural gas (LNG) vaporizer - Google Patents
Efficient heat pipe for liquefied natural gas (LNG) vaporizer Download PDFInfo
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- CN202793134U CN202793134U CN 201220369897 CN201220369897U CN202793134U CN 202793134 U CN202793134 U CN 202793134U CN 201220369897 CN201220369897 CN 201220369897 CN 201220369897 U CN201220369897 U CN 201220369897U CN 202793134 U CN202793134 U CN 202793134U
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Abstract
The utility model discloses an efficient heat pipe for a liquefied natural gas (LNG) vaporizer. The efficient heat pipe comprises a pipe body. A plurality of outer fins are arranged on the outer circumference of the pipe body, a plurality of inner fins are arranged on the circumference of a central hole inside the pipe body, the central hole is matched with a spiral turbulent flow piece which is of a double-end spiral structure, and the outer fins are symmetrical vertically and horizontally with the center of the pipe as a center of symmetry. Wave-shaped protrusions increase heat exchanging area and improve sea water lateral heat exchanging, and the outer fins are arranged to be distributed along the circumference evenly so as to be convenient to machine. Left fins and right fins in the horizontal direction of the pipe body are longer than fins in other directions, heat transfer area can be increased, and distribution of heat transfer flow is facilitated, reasonable inner fin structure parameters can effectively reduce the thickness of an outer ice layer of the heat pipe, the spiral turbulent flow piece can increase turbulence of flow inside the pipe, and heat transfer coefficient is greatly increased. The heat pipe is simple in structure, convenient to manufacture and machine and high in safety and can meet high-pressure and low-temperature conditions of LNG vaporizing.
Description
Technical field
The present invention relates to the efficient heat conducting tube that a kind of LNG vaporizer is used.
Background technology
LNG(Liquefied Natural Gas), i.e. the english abbreviation of liquefied natural gas.Natural gas is the fuel gas that the natural opening extraction comes in the gas field, and main component is comprised of methane.LNG is that the natural gas by gaseous state under normal pressure is cooled to-162 ℃, makes it to condense into liquid.Can greatly save storage and transportation space and cost after the natural gas liquefaction, and have large, the performance high of calorific value.
LNG is a kind of cleaning, the efficient energy.Because imported L NG helps energy-consuming state to realize the energy supply diversification, ensures energy security, and outlet LNG helps the effective development of natural gas resource of gas production state, increases foreign exchange earnings, promotes national economic development, thereby the LNG trade is just becoming the new focus of global energy markets.Colourless, tasteless, the nontoxic and non-corrosiveness of LNG, its volume are about with 1/600 of amount gaseous natural gas volume, and the weight of LNG only is about 45% of consubstantiality ponding.
Vaporizer is with cryogenic liquid gas (LO
2, LN
2, LAr, LCO
2, LNG etc.) by heat exchange, be vaporized into the gas of uniform temperature, be divided into two kinds of high and low pressures by purposes.High-pressure carburetor is to become gases at high pressure to be filled with steel cylinder through liquid oxygen, liquid nitrogen, liquid argon vaporization after the cryogenic liquid pump supercharging.Low pressure carburetor is that the cryogenic liquid in the storage tank is vaporized into low-pressure gas, is delivered to the scene of using through regulator by pipeline.
Striden into since 21 century, domestic market for natural gas is fast-developing, the demand of imported L NG increases greatly, because needing supercharging to gasify to normal temperature, could use the LNG in the receiving station after the import, increase along with receiving station's quantity of building and planning, needing supporting a large amount of LNG vaporizer, open-frame type vaporizer is be most widely used in the receiving station of present Basicloadtype a kind of.
The core group of open-frame type vaporizer becomes heat-transfer pipe, and some heat-transfer pipes form a heat transfer face plate side by side, and some heat transfer face plates form open-frame type vaporizer side by side.Open-frame type vaporizer uses seawater as thermal source, and LNG gasifies to normal temperature through after the re-heat of seawater.The heat-transfer pipe of open-frame type vaporizer requires to have higher heat exchange efficiency, and can bear the complicated running environment of high pressure and low temperature, the at present research of domestic this heat-transfer pipe and vaporizer still is in the starting stage, the exploitation of efficient heat conducting tube and be applied to the blank that open-frame type vaporizer can be filled up this technology.
Summary of the invention
The utility model is for above background, the efficient heat conducting tube that provides a kind of LNG vaporizer to use.
Goal of the invention of the present utility model realizes by following technical proposals:
A kind of efficient heat conducting tube for the LNG vaporizer, comprise body, the excircle of described body is provided with a plurality of outer fins, the inside center of described body is provided with centre bore, the circumference of described centre bore is provided with a plurality of inner fins, described centre bore cooperates with spiral flow-disturbing spare, described spiral flow-disturbing spare is the twin-feed spiral structure, described spiral flow-disturbing spare is divided into the gas section on top and the liquid segment of bottom, described liquid segment is provided with different pitch with the gas section, about the center of described outer fin about body, left-right symmetry.
As optimal way, be located at the length of left and right outer fin of body horizontal direction greater than the length of other direction fins.
As optimal way, described outer fin is provided with the corrugated projection.
As optimal way, the corrugated projection on the described outer fin is 2-5.
As optimal way, described outer fin is uniform along the excircle of described body.
As optimal way, described inner fin is uniform on the circumference of described centre bore.
As optimal way, described heat-transfer pipe is aluminum alloy heat transfer tube.
The beneficial effects of the utility model are: the utility model heat-transfer pipe external structure is the outer fin of radial ripple, namely increase the corrugated projection on the basis of traditional star fin, thereby increased heat exchange area, strengthen the heat exchange of seawater side, the fin that other directions are longer than in the convenient processing of form that outer fin is arranged to be uniformly distributed along the circumference, the left and right outer fin of body horizontal direction can increase heat transfer area and be conducive to the distribution of heat-transfer fluid; Body inside comprises inner fin and spiral flow-disturbing spare, reasonably the inner fin structural parameters can effectively reduce the thickness of the outside layers of ice of heat-transfer pipe, spiral flow-disturbing spare can increase the disturbance of tube fluid, greatly improve heat transfer coefficient, heat-transfer pipe is easy moulding and preferably mechanical performance is arranged with the meaning of aluminium alloy, the meaning that spiral flow-disturbing spare is arranged to the twin-feed spiral structure is: the twin-feed spiral structure is than other structures, the better effects if of reinforced pipe inner fluid disturbance, liquid segment has different pitch to be because different in liquid segment and the desired strength of turbulence of gas section with the gas section, the intensity of liquid segment increase disturbance is unsuitable excessive, in augmentation of heat transfer, should take into account the impact of freezing and weakening conducting heat, gas section strength of turbulence can be greater than liquid segment, thereby augmentation of heat transfer is to reduce heat exchange area.This heat transfer tube configuration is simple, is convenient to make processing, and safe, can satisfy high pressure and cryogenic conditions that LNG gasifies.
Description of drawings
Fig. 1 is the utility model efficient heat conducting tube outside and inner fins structural representation.
Fig. 2 is spiral flow-disturbing spare structural representation.
Wherein, 1 is body, and 2 is outer fin, and 21 is left outside fin, and 22 is right outside fin, and centered by 3 the hole, and 4 is inner fin, and 5 is spiral flow-disturbing spare, and 6 is the gas section, and 7 is liquid segment, and 8 is the corrugated projection.
The specific embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
As shown in the figure, a kind of efficient heat conducting tube for the LNG vaporizer, comprise body 1, the excircle of described body 1 is provided with a plurality of outer fins 2, the inside center of described body 1 is provided with centre bore 3, the circumference of described centre bore 3 is provided with a plurality of inner fins 4, described centre bore 3 cooperates with spiral flow-disturbing spare 5, described spiral flow-disturbing spare 5 is the twin-feed spiral structure, described spiral flow-disturbing spare 5 is divided into the gas section 6 on top and the liquid segment 7 of bottom, described liquid segment 7 is provided with different pitch with gas section 6, about the center of described outer fin 2 about body, left-right symmetry.
Be located at the length of left and right outer fin (21,22) of body horizontal direction greater than the length of other direction fins.
Described outer fin is provided with corrugated projection 8.
Corrugated projection 8 on the described outer fin is 2-5.
Described outer fin is uniform along the excircle of described body.
Described inner fin is uniform on the circumference of described centre bore.
Described heat-transfer pipe is aluminum alloy heat transfer tube.
The utility model heat-transfer pipe external structure is the outer fin of radial ripple, namely increase the corrugated projection on the basis of traditional star fin, thereby increased heat exchange area, strengthen the heat exchange of seawater side, the fin that other directions are longer than in the convenient processing of form that outer fin is arranged to be uniformly distributed along the circumference, the left and right outer fin of body horizontal direction can increase heat transfer area and be conducive to the distribution of heat-transfer fluid; Body inside comprises inner fin and spiral flow-disturbing spare, reasonably the inner fin structural parameters can effectively reduce the thickness of the outside layers of ice of heat-transfer pipe, spiral flow-disturbing spare can increase the disturbance of tube fluid, greatly improve heat transfer coefficient, heat-transfer pipe is easy moulding and preferably mechanical performance is arranged with the meaning of aluminium alloy, the meaning that spiral flow-disturbing spare is arranged to the twin-feed spiral structure is: the twin-feed spiral structure is than other structures, the better effects if of reinforced pipe inner fluid disturbance, liquid segment has different pitch to be because different in liquid segment and the desired strength of turbulence of gas section with the gas section, the intensity of liquid segment increase disturbance is unsuitable excessive, in augmentation of heat transfer, should take into account the impact of freezing and weakening conducting heat, gas section strength of turbulence can be greater than liquid segment, thereby augmentation of heat transfer is to reduce heat exchange area.This heat transfer tube configuration is simple, is convenient to make processing, and safe, can satisfy high pressure and cryogenic conditions that LNG gasifies.
Claims (7)
1. efficient heat conducting tube that is used for the LNG vaporizer, comprise body (1), it is characterized in that: the excircle of described body (1) is provided with a plurality of outer fins (2), the inside center of described body (1) is provided with centre bore (3), the circumference of described centre bore (3) is provided with a plurality of inner fins (4), described centre bore (3) cooperates with spiral flow-disturbing spare (5), described spiral flow-disturbing spare (5) is the twin-feed spiral structure, described spiral flow-disturbing spare (5) is divided into the gas section (6) on top and the liquid segment (7) of bottom, described liquid segment (6) is provided with different pitch with gas section (7), about the center of described outer fin (2) about body, left-right symmetry.
2. the efficient heat conducting tube for the LNG vaporizer as claimed in claim 1 is characterized in that: be located at the length of left and right outer fin (21,22) of body horizontal direction greater than the length of other direction fins.
3. the efficient heat conducting tube for the LNG vaporizer as claimed in claim 1 or 2, it is characterized in that: described outer fin is provided with corrugated projection (8).
4. the efficient heat conducting tube for the LNG vaporizer as claimed in claim 3 is characterized in that: the corrugated projection (8) on the described outer fin is 2-5.
5. such as claim 1 or 2 or 4 described efficient heat conducting tubes for the LNG vaporizer, it is characterized in that: described outer fin is uniform along the excircle of described body.
6. such as claim 1 or 2 or 4 described efficient heat conducting tubes for the LNG vaporizer, it is characterized in that: described inner fin is uniform on the circumference of described centre bore.
7. such as claim 1 or 2 or 4 described efficient heat conducting tubes for the LNG vaporizer, it is characterized in that: described heat-transfer pipe is aluminum alloy heat transfer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369897 CN202793134U (en) | 2012-07-30 | 2012-07-30 | Efficient heat pipe for liquefied natural gas (LNG) vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369897 CN202793134U (en) | 2012-07-30 | 2012-07-30 | Efficient heat pipe for liquefied natural gas (LNG) vaporizer |
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| Publication Number | Publication Date |
|---|---|
| CN202793134U true CN202793134U (en) | 2013-03-13 |
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ID=47820385
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369897 Expired - Lifetime CN202793134U (en) | 2012-07-30 | 2012-07-30 | Efficient heat pipe for liquefied natural gas (LNG) vaporizer |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322625A (en) * | 2013-05-29 | 2013-09-25 | 中国船舶重工集团公司第七二五研究所 | Method for designing single heat exchange fin of liquefied natural gas (LNG) vaporizer |
| CN103727831A (en) * | 2014-01-16 | 2014-04-16 | 中国船舶重工集团公司第七二五研究所 | Turbolator for LNG open-frame type gasifier |
| CN104019550A (en) * | 2013-11-22 | 2014-09-03 | 郑州大学 | Double-side strengthened heat transfer smoke tube of vertical gas-fired hot water boiler |
| CN104197769A (en) * | 2014-06-09 | 2014-12-10 | 赵炜 | Fin radiator with projection thickness changed along with height |
| CN104482793A (en) * | 2014-12-26 | 2015-04-01 | 中国海洋石油总公司 | Open rack vaporizer heat exchange tube capable of thermoelectrically recovering cold energy from LNG (Liquefied Natural Gas) |
| CN105333305A (en) * | 2015-07-02 | 2016-02-17 | 浙江海洋学院 | Liquefied natural gas gasifier detachably connected with internal and external heat exchange sheets |
| CN105443980A (en) * | 2015-07-02 | 2016-03-30 | 浙江海洋学院 | Liquefied natural gas gasifier detachably connected with outer heat exchange pieces |
| CN105486145A (en) * | 2015-12-31 | 2016-04-13 | 无锡辉腾科技有限公司 | Fin heat exchange tube with U-shaped fins |
| CN105651104A (en) * | 2016-01-04 | 2016-06-08 | 郑州轻工业学院 | Anti-frosting LNG air-heated nanofluid heat exchange pipe |
| 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 |
| CN107289319A (en) * | 2016-04-11 | 2017-10-24 | 气体运输技术公司 | A kind of hermetically sealed can with bellow seal film |
| CN110715573A (en) * | 2019-10-12 | 2020-01-21 | 上海交通大学 | Heat exchange tube suitable for LNG open rack vaporizer |
-
2012
- 2012-07-30 CN CN 201220369897 patent/CN202793134U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322625A (en) * | 2013-05-29 | 2013-09-25 | 中国船舶重工集团公司第七二五研究所 | Method for designing single heat exchange fin of liquefied natural gas (LNG) vaporizer |
| CN104019550A (en) * | 2013-11-22 | 2014-09-03 | 郑州大学 | Double-side strengthened heat transfer smoke tube of vertical gas-fired hot water boiler |
| CN104019550B (en) * | 2013-11-22 | 2016-08-17 | 郑州大学 | A kind of bilateral augmentation of heat transfer smoke pipe of Verticle gas hot-water boiler |
| CN103727831A (en) * | 2014-01-16 | 2014-04-16 | 中国船舶重工集团公司第七二五研究所 | Turbolator for LNG open-frame type gasifier |
| CN103727831B (en) * | 2014-01-16 | 2016-01-27 | 中国船舶重工集团公司第七二五研究所 | A kind of Turbolator for LNG open-frame type gasifier |
| CN104197769A (en) * | 2014-06-09 | 2014-12-10 | 赵炜 | Fin radiator with projection thickness changed along with height |
| CN104197769B (en) * | 2014-06-09 | 2015-11-11 | 赵炜 | Height of projection is along the fin radiator of height change |
| CN104482793A (en) * | 2014-12-26 | 2015-04-01 | 中国海洋石油总公司 | Open rack vaporizer heat exchange tube capable of thermoelectrically recovering cold energy from LNG (Liquefied Natural Gas) |
| CN105443980A (en) * | 2015-07-02 | 2016-03-30 | 浙江海洋学院 | Liquefied natural gas gasifier detachably connected with outer heat exchange pieces |
| CN105333305A (en) * | 2015-07-02 | 2016-02-17 | 浙江海洋学院 | Liquefied natural gas gasifier detachably connected with internal and external heat exchange sheets |
| CN105486145A (en) * | 2015-12-31 | 2016-04-13 | 无锡辉腾科技有限公司 | Fin heat exchange tube with U-shaped fins |
| CN105651104A (en) * | 2016-01-04 | 2016-06-08 | 郑州轻工业学院 | Anti-frosting LNG air-heated nanofluid heat exchange pipe |
| 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 |
| CN107289319A (en) * | 2016-04-11 | 2017-10-24 | 气体运输技术公司 | A kind of hermetically sealed can with bellow seal film |
| CN107289319B (en) * | 2016-04-11 | 2020-03-17 | 气体运输技术公司 | Sealed pot with corrugated sealing film |
| 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 |
| CN110715573A (en) * | 2019-10-12 | 2020-01-21 | 上海交通大学 | Heat exchange tube suitable for LNG open rack vaporizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Gang Inventor after: Xie Bo Inventor after: Huang Ke Inventor after: Cao Jun Inventor before: Huang Gang Inventor before: Xie Bo Inventor before: Huang Ke Inventor before: Cao Jun |
|
| ASS | Succession or assignment of patent right |
Owner name: PETROCHINA JINGTANG LIQUEFIED NATURAL GAS CO., LTD Effective date: 20140818 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Gang Inventor after: Wang Li Inventor after: Xie Bo Inventor after: Yin Qingdang Inventor after: Huang Ke Inventor after: Ai Shaoping Inventor after: Cao Jun Inventor after: Zhang Xin Inventor before: Huang Gang Inventor before: Xie Bo Inventor before: Huang Ke Inventor before: Cao Jun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUANG GANG XIE BO HUANG KE CAO JUN TO: HUANG GANG WANG LI XIE BO YIN QINGDANG HUANG KE AI SHAOPING CAO JUN ZHANG XIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140818 Address after: 641400 No. 239 Middle Road, Ziyang, Sichuan, Jianyang Patentee after: SICHUAN AIR SEPARATION PLANT (Group) Co.,Ltd. Patentee after: PetroChina Lng Ltd. Jingtang Address before: 641400 No. 239 Middle Road, Ziyang, Sichuan, Jianyang Patentee before: SICHUAN AIR SEPARATION PLANT (Group) Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |