CN103148732A - Gas/liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger - Google Patents
Gas/liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger Download PDFInfo
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- CN103148732A CN103148732A CN2013100992854A CN201310099285A CN103148732A CN 103148732 A CN103148732 A CN 103148732A CN 2013100992854 A CN2013100992854 A CN 2013100992854A CN 201310099285 A CN201310099285 A CN 201310099285A CN 103148732 A CN103148732 A CN 103148732A
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Abstract
The invention discloses a gas/liquid-phase fluid uniform distribution device of a high-pressure wound-tube type heat exchanger. The gas/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, surrounding heat-exchange pipes are arranged between the shell and the central cylinder, and a channel nozzle is welded on the liquid receiving disk, is arranged between the heat-exchange pipes and forms a liquid-stopping weir plate on the liquid receiving disk. As the liquid and the gas are different in density, the fluid subjected to the gravity action is biased in a shell pass to influence a heat-transfer effect. As the absolute horizontalness of the liquid disk can hardly be guaranteed when equipment is installed, with the liquid-stopping weir plate, a horizontal plane is provided to the liquid, a horizontal liquid face formed by the liquid-stopping weir plate enters a shell pass channel uniformly under the entrainment of upward gas, so that the heat transfer is enhanced. According to the gas/liquid-phase fluid uniform distribution device disclosed by the invention, the gas/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 efficient wound tube heat exchanger biphase gas and liquid flow that conducts heat that provides is provided in shell side for fluid.
Technical scheme of the present invention is: high voltage winding pipe heat exchanger liquid phase uniform fluid distribution device, 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 between housing and central tube around heat exchanger tube, be welded with channel nozzle on seal pot, channel nozzle is arranged between heat exchanger tube, and channel nozzle forms the liquid blocking dike plate on seal pot.
Described channel nozzle cross section be shaped as rectangle, circle or oval.
The annular space width of described heat exchanger tube is 1-6mm.
Described channel nozzle cross-sectional area is the 50%-60% of heat exchanger tube annular space sectional area.
The invention has the beneficial effects as follows: because the density of liquids and gases is different, make the fluid that is subject to Action of Gravity Field in the shell side bias current, affect heat-transfer effect.Equipment is difficult to ensure again the absolute level of card liquid dish when mounted, and the liquid blocking dike plate has been arranged, and just can make liquid that one horizontal plane is arranged, and is carried secretly by gas from bottom to top at the horizontal liquid level of liquid blocking dike plate formation and enters equably the shell side passage, has strengthened heat transfer.The present invention has effectively solved Large-scale High-Pressure wound tube heat exchanger shell side liquid phase and has distributed uneven problem, makes the fluid of liquid phase 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 3 is welded between housing and central tube, the housing of seal pot top is provided with outward takes over 1, be provided with between housing and central tube some around heat exchanger tube 4, form shell side between housing and heat exchanger tube, be welded with some channel nozzle 7 on seal pot, channel nozzle is arranged between heat exchanger tube, the channel nozzle cross section be shaped as rectangle, channel nozzle forms the liquid blocking dike plate on seal pot, shell-side fluid is divided into liquid through gas-liquid separator with fluid, after gas, taking over 1 A place is the liquid phase feeding mouth, the B place, bottom of channel nozzle 7 is the gas-phase feed mouth, gas enters by channel nozzle 7, liquid phase enters shell side through taking over 1 A place, the gaseous fluid of certain flow rate is from the bottom B of channel nozzle 7 flow at high speed from bottom to top, the even mixed fluid of gas phase and liquid phase enters shell side.The horizontal structure of liquid dish will make liquid evenly distribute along shell side whole cross section.The gas that upwards flows breaks through the narrow curved surface passage that liquid film and entrained liquids enter shell side, with the tube fluid heat exchange.The operating fluid level height of seal pot is suitable with the height of separator liquid level.Annular space 8 width between two heat exchanger tubes are 1mm, and the channel nozzle cross-sectional area is 50% of heat exchanger tube annular space sectional area.
Embodiment 2
the full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, comprise housing 6 and central tube 5, seal pot 3 is welded between housing and central tube, the housing of seal pot top is provided with outward takes over 1, be provided with between housing and central tube some around heat exchanger tube 4, form shell side between housing and heat exchanger tube, be welded with some channel nozzle 7 on seal pot, the channel nozzle cross section be shaped as ellipse, channel nozzle forms the liquid blocking dike plate on seal pot, shell-side fluid is divided into liquid through gas-liquid separator with fluid, after gas, taking over 1 A place is the liquid phase feeding mouth, the B place, bottom of channel nozzle 7 is the gas-phase feed mouth, gas enters by channel nozzle 7, liquid phase enters shell side through taking over 1 A place, the gaseous fluid of certain flow rate is from the bottom B of channel nozzle 7 flow at high speed from bottom to top, the even mixed fluid of gas phase and liquid phase enters shell side.The horizontal structure of liquid dish will make liquid evenly distribute along shell side whole cross section.The gas that upwards flows breaks through the narrow curved surface passage that liquid film and entrained liquids enter shell side, with the tube fluid heat exchange.The operating fluid level height of seal pot is suitable with the height of separator liquid level.Annular space 8 width of heat exchanger tube are 6mm, and the channel nozzle cross-sectional area is 60% of heat exchanger tube annular space sectional area.
the full liquid phase fluid even distribution device of high voltage winding pipe heat exchanger, comprise housing 6 and central tube 5, seal pot 3 is welded between housing and central tube, the housing of seal pot top is provided with outward takes over 1, be provided with between housing and central tube some around heat exchanger tube 4, form shell side between housing and heat exchanger tube, be welded with some channel nozzle 7 on seal pot, the channel nozzle cross section be shaped as circle, channel nozzle forms the liquid blocking dike plate on seal pot, shell-side fluid is divided into liquid through gas-liquid separator with fluid, after gas, taking over 1 A place is the liquid phase feeding mouth, the B place, bottom of channel nozzle 7 is the gas-phase feed mouth, gas enters by channel nozzle 7, liquid phase enters shell side through taking over 1 A place, the gaseous fluid of certain flow rate is from the bottom B of channel nozzle 7 flow at high speed from bottom to top, the even mixed fluid of gas phase and liquid phase enters shell side.The horizontal structure of liquid dish will make liquid evenly distribute along shell side whole cross section.The gas that upwards flows breaks through the narrow curved surface passage that liquid film and entrained liquids enter shell side, with the tube fluid heat exchange.The operating fluid level height of seal pot is suitable with the height of separator liquid level.Annular space 8 width of heat exchanger tube are 1-6mm, and the channel nozzle cross-sectional area is 55% of heat exchanger tube annular space sectional area.
Claims (4)
1. high voltage winding pipe heat exchanger liquid phase uniform fluid distribution device, 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 between housing and central tube around heat exchanger tube, be welded with channel nozzle on seal pot, channel nozzle is arranged between heat exchanger tube, and channel nozzle forms the liquid blocking dike plate on seal pot.
2. high voltage winding pipe heat exchanger liquid phase uniform fluid distribution device according to claim 1 is characterized in that: described channel nozzle cross section be shaped as rectangle, circle or oval.
3. high voltage winding pipe heat exchanger liquid phase uniform fluid distribution device according to claim 1 and 2, it is characterized in that: the annular space width of described heat exchanger tube is 1-6mm.
4. according to claim 1 and 2 or 3 described high voltage winding pipe heat exchanger liquid phase uniform fluid distribution devices, it is characterized in that: described channel nozzle cross-sectional area is the 50%-60% of heat exchanger tube annular space sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100992854A CN103148732A (en) | 2013-03-26 | 2013-03-26 | Gas/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 |
|---|---|---|---|
| CN2013100992854A CN103148732A (en) | 2013-03-26 | 2013-03-26 | Gas/liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger |
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| CN103148732A true CN103148732A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100992854A Pending CN103148732A (en) | 2013-03-26 | 2013-03-26 | Gas/liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280650A (en) * | 2021-07-22 | 2021-08-20 | 四川空分设备(集团)有限责任公司 | Gas-liquid two-phase fluid uniform distribution device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150510Y (en) * | 1993-04-07 | 1993-12-22 | 唐山钢铁(集团)公司 | Gas-liquid heat exchanger |
| CN2608927Y (en) * | 2003-04-03 | 2004-03-31 | 游雄 | Heat exchanger |
| CN202083261U (en) * | 2011-05-13 | 2011-12-21 | 天津华迈燃气装备股份有限公司 | Steam heat exchanger with venturi tube |
| CN202209899U (en) * | 2011-08-02 | 2012-05-02 | 张明辉 | Novel spiral winding tube type heat exchanger |
| CN102455139A (en) * | 2011-10-18 | 2012-05-16 | 张周卫 | Double-strand-flow low-temperature spiral winding pipe type heat exchanger with vacuum heat insulation function |
| CN102564167A (en) * | 2011-10-14 | 2012-07-11 | 张周卫 | Single-flow low-temperature spiral winding tube type heat exchanger with vacuum heat-insulation effect |
| CN102810128A (en) * | 2012-08-21 | 2012-12-05 | 张周卫 | Design calculation method for single-strand spiral wound heat exchanger |
-
2013
- 2013-03-26 CN CN2013100992854A patent/CN103148732A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150510Y (en) * | 1993-04-07 | 1993-12-22 | 唐山钢铁(集团)公司 | Gas-liquid heat exchanger |
| CN2608927Y (en) * | 2003-04-03 | 2004-03-31 | 游雄 | Heat exchanger |
| CN202083261U (en) * | 2011-05-13 | 2011-12-21 | 天津华迈燃气装备股份有限公司 | Steam heat exchanger with venturi tube |
| CN202209899U (en) * | 2011-08-02 | 2012-05-02 | 张明辉 | Novel spiral winding tube type heat exchanger |
| CN102564167A (en) * | 2011-10-14 | 2012-07-11 | 张周卫 | Single-flow low-temperature spiral winding tube type heat exchanger with vacuum heat-insulation effect |
| CN102455139A (en) * | 2011-10-18 | 2012-05-16 | 张周卫 | Double-strand-flow low-temperature spiral winding pipe type heat exchanger with vacuum heat insulation function |
| CN102810128A (en) * | 2012-08-21 | 2012-12-05 | 张周卫 | Design calculation method for single-strand spiral wound heat exchanger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280650A (en) * | 2021-07-22 | 2021-08-20 | 四川空分设备(集团)有限责任公司 | Gas-liquid two-phase fluid uniform distribution device |
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Application publication date: 20130612 |