CN103148733A - Full-liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger - Google Patents
Full-liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger Download PDFInfo
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- CN103148733A CN103148733A CN2013100992888A CN201310099288A CN103148733A CN 103148733 A CN103148733 A CN 103148733A CN 2013100992888 A CN2013100992888 A CN 2013100992888A CN 201310099288 A CN201310099288 A CN 201310099288A CN 103148733 A CN103148733 A CN 103148733A
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Abstract
The invention discloses a full-liquid-phase fluid uniform distribution device of a high-pressure wound-tube type heat exchanger The full-liquid-phase fluid uniform distribution device comprises a shell and a central cylinder, wherein a liquid receiving disk is welded between the shell and the central cylinder, a connection pipe is arranged outside the shell above the liquid receiving disk, at least two vertical heat-exchange pipes are arranged between the shell and the central cylinder, a liquid-enclosing weir pipe sleeved on the heat-exchange pipes is welded on the liquid receiving disk, and the upper end face of the liquid-enclosing weir pipe is horizontal. As the absolute horizontalness of a liquid disk can hardly be guaranteed when equipment is installed, with the liquid-enclosing weir pipe, a horizontal plane is provided to the liquid, liquid on the liquid-enclosing weir pipe can flow downwards along the walls of the heat-exchange pipes and along an annular space so as to form a uniform liquid film, and thus, the heat-transfer performance is improved. According to the full-liquid-phase fluid uniform distribution device disclosed by the invention, the problem of nonuniform distribution of a shell-pass full liquid phase of a large high-pressure wound-tube type heat exchanger is solved, and the full-liquid-phase fluid flows in a uniform distribution manner in the shell pass, so that the wound-tube type heat exchanger is greatly improved in heat-transfer performance.
Description
Technical field
The present invention relates to the shell-side fluid distribution structure used on a kind of Large-scale High-Pressure wound tube heat exchanger, be specifically related to the fluid that a kind of shell side charging is full liquid, gas-liquid two-phase attitude.
Background technology
More and more in world's energy demand, natural gas purification, liquefaction, a large amount of high voltage winding pipe heat exchanger of hydrocarbon retracting device demand, the now domestic large-scale wound tube heat exchanger that liquefaction is used with regard to large-scale natural gas (LNG) carries out design and manufacture research and development tackling key problem.These equipment separate unit diameters can reach more than 7 meters, and heavily approximately 350 tons, the maldistribution phenomenon appears in fluid in equipment, and fluid distributes the uneven bias current that forms that whole performance of heat exchanger reduced greatly at shell side.This is also the design difficulty that can the Large-scale High-Pressure wound tube heat exchanger satisfy operating index.
Summary of the invention
The technical problem to be solved in the present invention is that the even distribution device of uneven a kind of simple in structure, easy to use, the full liquid phase stream of efficient wound tube heat exchanger of conducting heat that provides is provided in shell side for fluid.
Technical scheme of the present invention is: the full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, comprise housing and central tube, seal pot is welded between housing and central tube, the housing of seal pot top is provided with adapter outward, be provided with at least two heat exchanger tubes that vertically arrange between housing and central tube, be welded with on seal pot to be enclosed within and enclose liquid weir pipe on heat exchanger tube, enclose pipe upper surface, liquid weir level.
Described gap of enclosing liquid weir bore and heat exchanger tube external diameter is 1-3mm, and the height of weir that encloses liquid weir pipe is 10-30mm.
Described gap of enclosing liquid weir bore and heat exchanger tube external diameter is 2mm, and the height of weir that encloses liquid weir pipe is 20mm.
The invention has the beneficial effects as follows: because liquid is subject to Action of Gravity Field in the shell side bias current, affect heat-transfer effect.Equipment is difficult to ensure again card liquid dish absolute level when mounted, and the liquid of enclosing weir pipe has been arranged, and just can make liquid that one horizontal plane is arranged, and can flow down along the heat exchange tube wall along annular space at the liquid that encloses on the pipe of liquid weir, forms even liquid film, the raising heat transfer property.The present invention has effectively solved the full liquid phase of Large-scale High-Pressure wound tube heat exchanger shell side and has distributed uneven problem, makes full liquid phase fluid flow in the shell side uniform distribution, and makes the wound tube heat exchanger heat transfer property greatly improve.
Description of drawings
Fig. 1 is that the present invention analyses and observe and looks schematic diagram;
Fig. 2 is schematic top plan view of the present invention.
The specific embodiment
The full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, comprise housing 6 and central tube 5, seal pot is welded between housing and central tube, the housing of seal pot top is provided with outward takes over 1, be provided with at least two heat exchanger tubes 4 that vertically arrange between housing and central tube, form shell side between housing and heat exchanger tube, be welded with on seal pot to be enclosed within and enclose liquid weir pipe 2 on heat exchanger tube, enclose pipe upper surface, liquid weir level, each encloses on a liquid weir Guan Zaiyi horizontal plane.Fluid is through taking over 1, by enter shell side after enclosing the annular space section that liquid weir pipe and heat exchanger tube outer wall form.Taking over 1 A place be liquid inlet opening, and liquid is uniform on seal pot, overlaps one and enclose the liquid weir and manage 2 on each heat exchanger tube, and the heat exchanger tube diameter is 8mm, and the gap of enclosing liquid weir bore and heat exchanger tube external diameter is 1mm, and the height of weir that encloses liquid weir pipe is 10mm.Reach uniform liquid ground after height of weir along from top to bottom entering shell side around the pipe outer wall, form even liquid film and the heat exchange of heat exchanger tube inner fluid.
The full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, comprise housing 6 and central tube 5, seal pot is welded between housing and central tube, the housing of seal pot top is provided with outward takes over 1, be provided with at least two heat exchanger tubes 4 that vertically arrange between housing and central tube, form shell side between housing and heat exchanger tube, be welded with on seal pot to be enclosed within and enclose liquid weir pipe 2 on heat exchanger tube, enclose pipe upper surface, liquid weir level, each encloses on a liquid weir Guan Zaiyi horizontal plane.Fluid is through taking over 1, by enter shell side after enclosing the annular space section that liquid weir pipe and heat exchanger tube outer wall form.Taking over 1 A place be liquid inlet opening, and liquid is uniform on seal pot, overlaps one and enclose the liquid weir and manage 2 on each heat exchanger tube, and the heat exchanger tube diameter is 25mm, and the gap of enclosing liquid weir bore and heat exchanger tube external diameter is 3mm, and the height of weir that encloses liquid weir pipe is 30mm.Reach uniform liquid ground after height of weir along from top to bottom entering shell side around the pipe outer wall, form even liquid film and the heat exchange of heat exchanger tube inner fluid.
The full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, comprise housing 6 and central tube 5, seal pot is welded between housing and central tube, the housing of seal pot top is provided with outward takes over 1, be provided with at least two heat exchanger tubes 4 that vertically arrange between housing and central tube, form shell side between housing and heat exchanger tube, be welded with on seal pot to be enclosed within and enclose liquid weir pipe 2 on heat exchanger tube, enclose pipe upper surface, liquid weir level, each encloses on a liquid weir Guan Zaiyi horizontal plane.Fluid is through taking over 1, by enter shell side after enclosing the annular space section that liquid weir pipe and heat exchanger tube outer wall form.Taking over 1 A place be liquid inlet opening, and liquid is uniform on seal pot, overlaps one and enclose the liquid weir and manage 2 on each heat exchanger tube, and the gap of enclosing liquid weir bore and heat exchanger tube external diameter is 2mm, and the height of weir that encloses liquid weir pipe is 15mm.Reach uniform liquid ground after height of weir along from top to bottom entering shell side around the pipe outer wall, form even liquid film and the heat exchange of heat exchanger tube inner fluid.
Claims (3)
1. the full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, it is characterized in that: comprise housing and central tube, seal pot is welded between housing and central tube, the housing of seal pot top is provided with adapter outward, be provided with at least two heat exchanger tubes that vertically arrange between housing and central tube, be welded with on seal pot to be enclosed within and enclose liquid weir pipe on heat exchanger tube, enclose pipe upper surface, liquid weir level.
2. the full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger according to claim 1, it is characterized in that: described gap of enclosing liquid weir bore and heat exchanger tube external diameter is 1-3mm, the height of weir that encloses liquid weir pipe is 10-30mm.
3. the full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger according to claim 2, it is characterized in that: described gap of enclosing liquid weir bore and heat exchanger tube external diameter is 2mm, the height of weir that encloses liquid weir pipe is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100992888A CN103148733A (en) | 2013-03-26 | 2013-03-26 | Full-liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100992888A CN103148733A (en) | 2013-03-26 | 2013-03-26 | Full-liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger |
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| CN103148733A true CN103148733A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100992888A Pending CN103148733A (en) | 2013-03-26 | 2013-03-26 | Full-liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748588A (en) * | 2015-04-15 | 2015-07-01 | 江阴中南重工有限公司 | Heat exchanger with distribution discs |
| CN105674773A (en) * | 2016-01-25 | 2016-06-15 | 牛玉振 | Winding type heat exchanger for LNG refrigerator |
| CN109001246A (en) * | 2018-07-11 | 2018-12-14 | 中国石油大学(华东) | A kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics |
| CN111795516A (en) * | 2020-06-16 | 2020-10-20 | 普泛能源技术研究院(北京)有限公司 | Wound tube core structure and efficient absorption device and method for directional liquid distribution of wound tube core structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3363843A (en) * | 1965-04-26 | 1968-01-16 | Union Oil Co | Fluid inlet distributor |
| CN2054370U (en) * | 1989-06-15 | 1990-03-14 | 天津大学 | Combined liquid distributing unit |
| CN102258930A (en) * | 2011-05-26 | 2011-11-30 | 浙江森力机械科技有限公司 | Equalized flow liquid distributor |
| CN102538387A (en) * | 2011-11-22 | 2012-07-04 | 张周卫 | Liquefied natural gas (LNG) low temperature liquefied three-level refrigeration spiral wound tube type heat exchanger |
-
2013
- 2013-03-26 CN CN2013100992888A patent/CN103148733A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3363843A (en) * | 1965-04-26 | 1968-01-16 | Union Oil Co | Fluid inlet distributor |
| CN2054370U (en) * | 1989-06-15 | 1990-03-14 | 天津大学 | Combined liquid distributing unit |
| CN102258930A (en) * | 2011-05-26 | 2011-11-30 | 浙江森力机械科技有限公司 | Equalized flow liquid distributor |
| CN102538387A (en) * | 2011-11-22 | 2012-07-04 | 张周卫 | Liquefied natural gas (LNG) low temperature liquefied three-level refrigeration spiral wound tube type heat exchanger |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748588A (en) * | 2015-04-15 | 2015-07-01 | 江阴中南重工有限公司 | Heat exchanger with distribution discs |
| CN105674773A (en) * | 2016-01-25 | 2016-06-15 | 牛玉振 | Winding type heat exchanger for LNG refrigerator |
| CN105674773B (en) * | 2016-01-25 | 2019-03-26 | 牛玉振 | Coiled heat exchanger for LNG ice chest |
| CN109001246A (en) * | 2018-07-11 | 2018-12-14 | 中国石油大学(华东) | A kind of experimental rig of FLNG wound tube heat exchanger flowing and Research on Heat Transfer Characteristics |
| CN111795516A (en) * | 2020-06-16 | 2020-10-20 | 普泛能源技术研究院(北京)有限公司 | Wound tube core structure and efficient absorption device and method for directional liquid distribution of wound tube core structure |
| CN111795516B (en) * | 2020-06-16 | 2021-04-27 | 普泛能源技术研究院(北京)有限公司 | Wound tube core structure and efficient absorption device and method for directional liquid distribution of wound tube core structure |
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Application publication date: 20130612 |