CN102049149A - Tower feeding distributor - Google Patents
Tower feeding distributor Download PDFInfo
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- CN102049149A CN102049149A CN2009101881458A CN200910188145A CN102049149A CN 102049149 A CN102049149 A CN 102049149A CN 2009101881458 A CN2009101881458 A CN 2009101881458A CN 200910188145 A CN200910188145 A CN 200910188145A CN 102049149 A CN102049149 A CN 102049149A
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- shutter
- feed distributor
- runner
- gas
- distributor
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Abstract
The invention relates to a tower feeding distributor, comprising a feeding inlet, a splitter and a shutter flow channel. The splitter is of a fan-shaped structure, comprising an arch-shaped guide plate, upper and lower cover plates and a support end plate. The shutter flow channel is a horizontal channel with a gradually decreasing flow area, and an inlet end of the shutter flow channel is fixed on a support end plate of the splitter. At both sides of the shutter flow channel, 4-12 groups of blades are arranged in order from the inlet end, and directions of the blades on the two sides are staggered to form an outlet between the adjacent blades. The feeding distributor can carry out both uniform distribution on the gas-liquid mixing feed for two times and gas-liquid separation on the gas-liquid mixing feed for two times, and generate airflow collision by utilizing an inertial force of the gas phase, thereby basically eliminating the entrainment of liquid drop by gas. Non-uniform gas distribution caused by a sudden change in feeding amount is avoided. High uniform rising gas distribution is realized. Meanwhile, a tower diameter width is fully used to ensure the feeding distributor to be low and to effectively save the space.
Description
Technical field
The present invention relates to the apparatus for feeding of tower gas-liquid two-phase, specifically relate to a kind of tangential or two inlets feed distributor of list of vane type.More specifically say so and belong to a kind of feed distributor that is particularly useful for the anti-gas entrainment of petroleum refinery's atmospheric and vacuum distillation unit vacuum tower deep drawing processing.
Technical background
Tower is one of petroleum refinery's most important equipment, fully to contact between realization gas-liquid or the liquid liquid two-phase, reaches the purpose of interphase heat transfer and mass transfer.
The vacuum tower of petroleum refinery's atmospheric and vacuum distillation unit is in order to obtain more light fraction oil from reduced crude, guarantees in the decompression residuum＜500 ℃ of cut content ≯ 5% and carry out a kind of gas-liquid, the liquid liquid contact mass transfer of vacuum distillation, the tower of heat transfer.Crude oil decompression deep drawing technology is to guarantee to realize that the cut point of vacuum distillate reaches 560 ℃ even higher under the prerequisite of reduced pressure distillate oil quality through the vacuum tower decompression distillation, thereby obtains a kind of heavy oil lighting technology of more light distillates.For the quality that guarantees vacuum tower deep drawing processing back decompression fraction oil satisfies index request, the effect of the feed distributor of crude distillation decompression tower is the most important.
In recent years, along with the continuous expansion of petroleum refinery's process scale with to improving constantly that the decompression extracting rate requires, vacuum tower inner member especially feed distributor is increasing to the influence of atmospheric and vacuum distillation unit deep drawing.And for large diameter tower, when particularly the filler loading height was low, feed distributor seemed and is even more important.At present, using more vacuum tower feed distributor in industry mostly is the straight tube opening greatly or by various being provided with of feed stream water conservancy diversion is finished even distribution to feed stream, because charging has nothing in common with each other at the discharge rate of diverse location perforate, such distributor can not reach the requirement of even distribution material; And the vacuum tower charging is the gas-liquid mixed mist flow that contains 60%～70% liquid phase, and the entrainment of gas is comparatively serious after charging distributes, and is bigger to the product quality influence of tower bottom side line.
Though existing two inlets feed distributor can satisfy equally distributed purpose, exist that the swirling flow of distributor uprising gas is big, whirlpool is many, the uprising gas entrainment is serious, and gas flows through shortcomings such as pressure drop is bigger; Though external biserial vane type feed distributor process pressure drop is little, help decompression distillation deep drawing operation, but exist the air-flow skewness, drop is carried problems such as more serious secretly, had a strong impact on the product quality of decompression distillation fraction oil, handle thereby restricted the decompression distillation deep drawing, the decompression distillation extracting rate can't be improved.
Summary of the invention
In view of the product quality of current decompression fraction oil is restricting the situation that atmospheric and vacuum distillation unit decompression deep drawing is handled, the invention provides a kind of tower feed distributor, be a kind of tangential or two inlets feed distributor of list of vane type.Be characterized in the logistics of coming in from charging aperture being evenly distributed to each shutter runner, thereby form once uniform and gas-liquid separation charging by the interior current divider of establishing deflector; The both sides of shutter runner are arranged blade not of uniform size successively, and logistics in the runner is evenly derived along tower section.Liquid phase is at the bottom of the space between two runners down flows to tower, and gas phase is abolished droplets entrained in the air-flow because the gas phase that inertia force and adjacent channels blade are derived bumps, and reduces carrying secretly of gas.Gas after the collision evenly rises along tower section, and collision produces drop and builds up, and drop is finished quadratic distribution and gas-liquid separation to logistics at the bottom of flowing to tower under the gravity effect.Like this, charging from current divider to the shutter runner, derive by blade of louver window again and form airflow counter-collision, formed twice uniform and twice gas-liquid separation of logistics, thereby eliminated the entrainment of uprising gas substantially, along the uniform uprising gas of tower section, make the uprising gas uniformity simultaneously near a hundred per cent.In addition, a kind of tower feed distributor of the present invention makes full use of the radial width of tower, separates and distribution at the enterprising promoting the circulation of qi liquid of whole tower section, under equal feed rate, has guaranteed that the feed distributor height is low, and institute takes up space little.The easy coking of band grille blades formula distributor, blockage problem have also been solved.
The present invention is achieved by the following measures:
A kind of tower feed distributor comprises that charging aperture, current divider, shutter runner, blade, fixed support beam constitute; Wherein: charging aperture is single tangential admission or two inlets charging; Current divider is the sector structure that a kind of and tower wall forms enclosure space, is positioned in the middle of charging aperture and the shutter runner, is communicated with charging aperture and shutter runner, in to establish quantity be mass flow or the flow rate homogeneous that 4～8 arc deflectors guarantee to enter each shutter runner; The shutter runner is the rectangular channel that circulation area reduces gradually, and arrival end is fixed on current divider and supports on the end plate; The fixed support beam is positioned at shutter runner middle part, and support fixation shutter runner supports whole feed distributor on tower body.The entrance face of shutter runner is to current divider, and top and bottom are all sealed, and both sides begin to be arranged in order the blade of 4～12 groups of different sizes from arrival end, and the direction blade of both sides is wrong mutually to be handed over.Blade is the stripe board of shape, different sizes, is fixed on the side of shutter runner, forms the poroid export mouth of bar shaped of different sizes between adjacent blades.The logistics of carrying out elementary gas-liquid separation in runner is derived, liquid phase is at the bottom of the space between the two shutter runners down flows to tower, gas phase since the gas phase that the blade that inertia force and adjacent shutter runner direction interlace is derived bump, thereby abolish droplets entrained in the air-flow, reduce carrying secretly of gas; Simultaneously since the shutter runner along tower diameter to symmetric arrays, current divider is uniform to each shutter runner charging, carries out once uniform to logistics; Logistics derives from runner blade, and it is uniform to carry out secondary again, has realized the even distribution of uprising gas height.
The feed distributor of the vane type that a kind of tower feed distributor of the present invention is told about, can select is single tangential admission or two inlets charging; It is single charging aperture or two charging aperture that charging aperture also can be selected.
The gas-liquid mixed charging that contains 60%～70% liquid phase of coming out from crude oil atmospheric vacuum distillation device vacuum furnace, enter into the current divider of feed distributor by charging aperture through pressure-reducing line for oil-transferring, arc deflector by establishing in the current divider arrives feed distribution along each transversely arranged shutter runner of tower section equably then.Carry out certain gas-liquid separation in the shutter runner after, gas-liquid flows out from the blade of shutter runner both sides.Because the cross section of fluid channel of shutter runner successively decreases gradually along feedstock direction, the wrong friendship of the direction of both sides blade simultaneously, not of uniform size, derive the size of logistics capacity with the variation adjusting vane of inlet amount, guaranteed that the gas-liquid flow of deriving from each blade is consistent with flow rate, realized logistics uniform on whole tower section.The liquid phase that derives from the spatial flow between the two shutter runners at the bottom of tower, gas phase since the effect of inertia force and the gas of deriving from adjacent shutter runner runner collide mutually, droplets entrained is built up, at the bottom of drop comes off out and flows to tower under the gravity effect, eliminated the entrainment of gas from gas phase.
The effect that the present invention produces is: twice uniform and twice gas-liquid separation carried out in the gas-liquid mixed charging, and utilized the inertia force of gas phase to produce airflow counter-collision, eliminated gas carrying secretly drop substantially; The distribution of gas of having avoided the sudden change owing to feed rate to cause is inhomogeneous, has realized that the height of uprising gas is uniform.Simultaneously, make full use of the tower diameter width, guarantee that the feed distributor height is low, institute takes up space little, and has avoided the easy coking of distributor, clogging.
Description of drawings
Fig. 1 is a two inlets feed distributor structural representation of the present invention;
Fig. 2 is the axial cutaway view of two inlets feed distributor;
Fig. 3 is a two inlets feed distributor radial cross-section;
Fig. 4 is single tangential admission structure of distributor schematic diagram of the present invention;
Fig. 5 is the axial cutaway view of single tangential admission distributor;
Fig. 6 is single tangential admission distributor radial cross-section.
Wherein: 1-deflector, 2-shutter runner, 3-blade, 4-fixed support beam, 5-current divider, 6-charging aperture, 7-tower wall, 8-current divider support end plate.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
A kind of novel feed distributor of the present invention is specially a kind of two inlets feed distributor of vane type, and basic structure comprises charging aperture 6, deflector 1, shutter runner 2, blade 3, current divider 5.As shown in Figure 1, current divider 5 and tower wall constitute a sector structure of sealing up and down, be positioned in the middle of charging aperture 6 and the shutter runner 2, be communicated with charging aperture 6 and shutter runner 2, in establish arc deflector 1, the end of deflector 1 is fixed on the current divider end plate 8, facade is welded on up and down cover plate of current divider up and down, form some not connected basins, as shown in Figure 2; Rectangle or circular channel that shutter runner 2 reduces along feedstock direction gradually for circulation area, front end are fixed on current divider and support on the end plate 8; The front end face of shutter runner 2 is to current divider 5, top and bottom are all sealed, the shutter runner rear end of rear end and symmetry direction is connected, and shutter runner 2 both sides begin to be arranged in order the blades 3 of organizing different sizes from arrival end more, and the direction blade of both sides is wrong mutually to be handed over; Be symmetrically distributed to cross section two charging apertures 6, current divider 5 and shutter runner 2 along tower diameter; Fixed support beam 4 is positioned at two symmetrical shutter runner junctions, and support fixation shutter runner supports whole feed distributor on tower body 7.
Arc deflector 1 quantity and shutter runner 2 are complementary, the quantity of the two, and height is determined through the CFD simulation by technological parameters such as inlet amount, feeding gas liquor ratios.
A kind of novel feed distributor of the present invention is specially a kind of vane type list tangential admission distributor, and basic structure comprises charging aperture 6, deflector 1, shutter runner 2, blade 3, current divider 5, as shown in Figure 4.The structure of current divider 5 and deflector 1 is identical with embodiment 1, and opening one end face of shutter runner 2 is to current divider 5, and top and bottom are all sealed, and end is an enclosed construction, is fixed on the brace summer 4.Shutter runner 2 both sides begin to be arranged in order the blades 3 of organizing different sizes from arrival end more, and the direction blade of both sides is wrong mutually to be handed over; As shown in Figure 5.Deflector 1 and blade 3 particular locations, quantity and height are determined by the CFD analog computation according to feeding gas liquid measure, feeding gas liquor ratio etc.
Claims (9)
1. tower feed distributor comprises:
Charging aperture;
Current divider, it is a sector structure, comprises arc deflector, cover plate and support end plate up and down;
The shutter runner is the horizontal channel that circulation area reduces gradually, and its arrival end is fixed on current divider and supports on the end plate, and communicates with current divider by corresponding opening; In the both sides of shutter runner, begin to be arranged in order 4～12 groups of blades from arrival end, the direction blade of both sides is wrong mutually to be handed over, and constitutes export mouth in the middle of the adjacent vanes.
2. according to the described tower feed distributor of claim 1, it is characterized in that described feed distributor also comprises the fixed support beam, it is positioned at shutter runner below, is used to support shutter runner and feed distributor.
3. according to the described tower feed distributor of claim 1, it is characterized in that described tower feed distributor is single tangential or two inlets feed distributor, described charging aperture is single tangential admission mouth or two inlets charging aperture.
4. according to the described tower feed distributor of claim 1, it is characterized in that described shutter runner is circular channel or rectangular channel.
5. according to the described tower feed distributor of claim 1, it is characterized in that described blade is the stripe board of shape, different sizes, it is fixed on the two sides of shutter runner.
6. according to claim 1 or 2 described tower feed distributors, it is characterized in that described tower feed distributor is single tangential admission distributor, the end of described shutter runner is an enclosed construction.
7. according to the described tower feed distributor of claim 1, it is characterized in that the quantity of described arc deflector and shutter runner are complementary.
8. according to the described tower feed distributor of claim 1, it is characterized in that the quantity of described arc deflector is 4～8.
9. according to the described tower feed distributor of claim 1, it is characterized in that described tower feed distributor is the two inlets feed distributor, be symmetrically distributed to cross section charging aperture, current divider and shutter runner along tower diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188145A CN102049149B (en) | 2009-10-27 | 2009-10-27 | Tower feeding distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188145A CN102049149B (en) | 2009-10-27 | 2009-10-27 | Tower feeding distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102049149A true CN102049149A (en) | 2011-05-11 |
| CN102049149B CN102049149B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910188145A Active CN102049149B (en) | 2009-10-27 | 2009-10-27 | Tower feeding distributor |
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| CN (1) | CN102049149B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383710A (en) * | 2014-11-06 | 2015-03-04 | 杭州杭氧股份有限公司 | Gas distribution device for two-way diversion of distillation equipment |
| CN105561696A (en) * | 2015-10-16 | 2016-05-11 | 胡振强 | Gas-liquid separator for desulfurization and dust removal system |
| CN107952259A (en) * | 2017-12-29 | 2018-04-24 | 上海协升化工科技有限公司 | A kind of high-efficiency blade formula feed distribution mechanism |
| CN108067009A (en) * | 2018-01-31 | 2018-05-25 | 丹阳同泰化工机械有限公司 | A kind of high efficient gas and liquid separator |
| CN110280035A (en) * | 2019-07-26 | 2019-09-27 | 海南汉地阳光石油化工有限公司 | The preparation system and method for a kind of two inlets circulation type feed distributor, pesticide dispersing agent |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014740A (en) * | 1990-05-21 | 1991-05-14 | Cameron Gordon M | Distributor for packed tower |
| US5884658A (en) * | 1996-09-05 | 1999-03-23 | Cameron; Gordon M. | Liquid distributor for a packed tower |
| CN2273216Y (en) * | 1996-12-20 | 1998-01-28 | 北京泽华化学工程有限公司 | Flow line type feeding gas sparger |
| CN100404106C (en) * | 2006-03-24 | 2008-07-23 | 天津大学 | Feeding distributor with anti-eddy flow baffle plate |
| CN101422717B (en) * | 2008-11-21 | 2011-07-06 | 中国蓝星（集团）股份有限公司 | Gas liquid mixed feeding distributor and polyphenylene oxide reaction device using the same |
-
2009
- 2009-10-27 CN CN200910188145A patent/CN102049149B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383710A (en) * | 2014-11-06 | 2015-03-04 | 杭州杭氧股份有限公司 | Gas distribution device for two-way diversion of distillation equipment |
| CN105561696A (en) * | 2015-10-16 | 2016-05-11 | 胡振强 | Gas-liquid separator for desulfurization and dust removal system |
| CN105561696B (en) * | 2015-10-16 | 2017-11-24 | 安徽中昊环保装备股份有限公司 | Gas-liquid separator for desulfurization dust-removal system |
| CN107952259A (en) * | 2017-12-29 | 2018-04-24 | 上海协升化工科技有限公司 | A kind of high-efficiency blade formula feed distribution mechanism |
| CN108067009A (en) * | 2018-01-31 | 2018-05-25 | 丹阳同泰化工机械有限公司 | A kind of high efficient gas and liquid separator |
| CN110280035A (en) * | 2019-07-26 | 2019-09-27 | 海南汉地阳光石油化工有限公司 | The preparation system and method for a kind of two inlets circulation type feed distributor, pesticide dispersing agent |
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| Publication number | Publication date |
|---|---|
| CN102049149B (en) | 2012-08-29 |
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