CN206793082U - A kind of low pressure drop liquid header of suitable large-scale tower - Google Patents
A kind of low pressure drop liquid header of suitable large-scale tower Download PDFInfo
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- CN206793082U CN206793082U CN201720283341.3U CN201720283341U CN206793082U CN 206793082 U CN206793082 U CN 206793082U CN 201720283341 U CN201720283341 U CN 201720283341U CN 206793082 U CN206793082 U CN 206793082U
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Abstract
A kind of low pressure drop liquid header of suitable large-scale tower, rectangular slat hole arranged side by side is provided with oil-collecting box plate face, percent opening is more than the 50% of tower section product, and bottom plate is connected completely with tower wall diagonally downward along strip hole direction, and a liter vapour barrel is fully connected above rectangular slat hole；It is strip groove profile to rise vapour barrel, and the section along strip direction is trapezoid structure, and both ends are vertical riser；Trapezoid barrel upper end is mounted on layered tower top plate, and layered tower top plate bottom plate stretches out the 200mm of trapezoid barrel 10, and the interior edge and outer line of layered tower top plate are beveled structure；More than 10mm is stretched out in layered tower top plate both ends with the vertical riser closing connection or the vertical riser than rising vapour barrel both ends for rising vapour barrel both ends.
Description
1. technical field
The utility model provides a kind of low pressure drop liquid header of suitable large-scale tower, is related to separation tower field.
2. background technology
With crude oil heaviness and in poor quality and following shale oil, tar sand oil, again (thick) oil, extra heavy oil, deep petroleum,
The unconventional heavy poor oil such as pitch, coal tar largely produces, and reduced crude is difficult to directly as Rfcc Feedstock.Improve
Extracting rate is depressurized, it is that oil refining enterprise's pool is excellent to strive for the more catalytic cracking of output or hydrocracking raw material, reduce yield of bottoms
Change downstream coking and catalytic cracking or hydrocracking unit production, the inevitable choice for maximally utilize resource, increasing the benefit.Decompression
The distillate of deep drawing is mainly used as catalytic cracking or hydrocracking raw material, and its benefit not only embodies in the present apparatus, heavier
The catalytic cracking for being embodied in downstream wanted, it is hydrocracked, in the comprehensive benefit of coking plant and whole refinery.Therefore deep vacuum distillation
The importance and benefit of technology more highlight, both at home and abroad all in the actively technique of research and development deep vacuum distillation and related equipment.
Tower internals is the important component of packed tower, and it collectively forms a complete packed tower with filler and tower body,
The effect of all tower internals is provided to make gas-liquid two-phase better contact with tower, so as to play the maximal efficiency of filler and
Maximum productivity, the quality of tower internals design will directly affect performance and the performance of whole packed tower of carrier performance.Filler
Tower internals mainly includes liquid distribution trough, filler fastener, packing support device, catch box (liquid header), liquid again
Distributor and charging/discharging device, gas feed and distribution apparatus and demister etc., their structure type is for solving packed tower
Pressure drop, height and the problems such as tower internals coking and blocking it is most important.
The full pressure tower drop of vacuum tower is exactly that the vapour phase medium in vacuum tower passes through oil sump tank, filling batch etc. from feed zone
Inner member rises to the fluid resistance loss that Top of Vacuum Tower is occurred.In uphill process, vapour phase medium with liquid phase medium phase
Contact carries out mass-and heat-transfer, and flow rate is change.The full pressure tower drop for reducing vacuum tower seeks to avoid institute in this process
The unnecessary fluid resistance loss occurred.Dynamical type liquid distribution trough does not form drag effect, gravity type liquid to vapour phase medium
Body distributor occupies the vapour phase media flow area less than 50% equivalent, does not also substantially produce drag effect to vapour phase medium.
Produce drag effect to vapour phase medium is oil sump tank, because oil sump tank requirement has certain liquid residence time, is accounted for
More than 60% gas passage area, another effect of oil sump tank in addition is the pressure drop that gas distribution also requires to be necessary.
Therefore, to oil sump tank design using certain vapour phase media flow drag losses be necessary, it is important to rise vapour cylinder pattern,
Size and arrangement.
The key of deep vacuum distillation technology is that to control oil product cracking at high temperature and polymerization speed, means be to meet production exercise
On the premise of making condition, control oil product extreme maximum temperature and the residence time for reducing oil product under high temperature.It is main for vacuum tower
It is the inner member such as the high-temperature operation of middle and lower part, tray deck, filling batch, oil sump tank, distributor.High temperature oil product stops at these positions
Stay overlong time or local bias current occur, it may occur that cracking and coking phenomenon, the means of solution are selection anti-clogging, anti-coking
The strong internals of ability (filler, tower tray, inner parts structure), the internals for reducing liquid residence time are (oil sump tank, liquid distribution trough, interior
Part structure), the good filler of liquid distribution effect and distributor (filler surface reaches sufficient wetting), vapor-liquid separation function admirable
Feed segment structure, reduce VACUUM TOWER BOTTOM residual oil residence time simultaneously use quench oil flow.Especially washing section oil sump tank is set
Put under the top of feed zone, deep vacuum distillation situation, operation temperature is generally near or more than 370 DEG C, and the liquid in oil sump tank is situated between
Matter weight, Jiao Zhi, asphalt content are high, often have deposit to produce and cause underdeposit corrosion, therefore should more reduce the liquid of oil sump tank
Residence time, it is ensured that long period safety operation.
Therefore, preferable large-scale tower oil sump tank should be low pressure drop, low spatial height, low liquid residence time and good
Liquid collect and gas distributed effect and manufacture and it is easy for installation.Large-scale tower liquid header (oil sump tank) goes out in recent years
Bar shaped longitudinal is used mostly in design, manufacture, consideration easy for installation, this structure has certain effect to gas distribution tool,
But it is limited to structure, it is impossible to play good gas distributed effect.The utility model people has once invented the pagoda with layered structure
Type liquid header (oil sump tank), ZL96205156.X, layered tower umbrella top plate and annular oil-collecting box structure ensure that gas leads to
Road sectional area is generally more than 50%, reaches as high as 90%, and pressure drop is extremely low, and liquid residence time is short；Umbrella-shaped structure ensure that liquid
Collect and be evenly distributed completely with gas；But as packed tower maximizes, layered tower umbrella ceiling height sharply increases, annulate lamella tower
Formula substantially reduces availability ratio of the armor plate, and structure manufacture and installation difficulty are increasing.
3. the content of the invention
The purpose of this utility model is to overcome the shortcomings of existing large-scale tower liquid header (oil sump tank) and defect
And invent a kind of suitable large-scale tower low pressure drop liquid header, gas aisle spare is big, low pressure drop, low spatial height,
Low liquid residence time and the collection of good liquid and gas distributed effect, sheet material consumption is low, manufactures and easy for installation.
The technical solution of the utility model：
The utility model provides a kind of low pressure drop liquid header of suitable large-scale tower, it is characterized in that oil sump tank bottom plate
Be provided with rectangular slat hole arranged side by side on face, percent opening is more than the 50% of tower section product, hole both ends apart from more than tower wall 100mm,
Bottom plate is connected for 0 ° -9 ° completely with tower wall diagonally downward along strip hole direction, and a liter vapour barrel is fully connected above rectangular slat hole；
It is strip groove profile to rise vapour barrel, and the section along strip direction is trapezoid structure, and both ends are vertical riser, and trapezoid barrel is vertical
Highly it is 200-1000mm；Trapezoid barrel upper end is mounted on the layered tower that 3-30 layer elongated rectangular shape plate parallel series form
Top plate, layered tower top plate bottom plate stretch out trapezoid barrel 10-200mm, are stretched per the laminate port of export than lower plywood arrival end
Go out 10-200mm, top plate covers a liter vertical channel for vapour cylinder completely, and the interior edge and outer line of layered tower top plate are
Beveled structure；Space forms inverted trapezoidal structure between two layered tower top plates for rising vapour barrel, and top aisle spare is more than tower
The 70% of sectional area；Layered tower top plate both ends are with the vertical riser closing connection for rising vapour barrel both ends or than rising vapour barrel both ends
Vertical riser stretches out more than 10mm；The elongated rectangular shape plate thickness 3-10mm of layered tower top plate, plate level slanted angle be 0 °-
70 °, plate spacing is 10-100mm, and plate width is 3-20 times of plate spacing.
The characteristics of embodiment to describe the utility model in detail by the utility model.
4. brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model, and accompanying drawing 2 is oil-collecting box plate face perforate schematic diagram.
The drawing of accompanying drawing 1 is described as follows：
1st, tower wall 2, oil sump tank bottom plate 3, rectangular slat hole 4, liter vapour barrel 5, layered tower top plate
Process characteristic of the present utility model is described in detail with reference to the accompanying drawings and examples.
5. embodiment
Embodiment, a kind of low pressure drop liquid header of suitable large-scale tower is formed by following structure assembly：Oil-collecting
Rectangular slat hole (3) arranged side by side is provided with bottom plate (2) face, percent opening is more than the 50% of tower section product, hole both ends are apart from tower
More than wall 100mm, bottom plate are connected for 0 ° -9 ° completely with tower wall diagonally downward along strip hole direction, and rectangular slat hole (3) are complete above
Connection rises vapour barrel (4)；It is strip groove profile to rise vapour barrel (4), is trapezoid structure along the section in strip direction, both ends are vertical
Straight riser, trapezoid barrel vertical height are 200-1000mm；Trapezoid barrel upper end is mounted on 3-30 layer elongated rectangular shape plates
The layered tower top plate (5) that parallel series form, layered tower top plate (5) bottom plate stretch out trapezoid barrel 10-200mm, every layer
The plate port of export stretches out 10-200mm than lower plywood arrival end, and top plate covers a liter vertical channel for vapour cylinder completely, layer tower
The interior edge and outer line of formula top plate (5) are beveled structure；Space between two layered tower top plates (5) for rising vapour barrel (4)
Inverted trapezoidal structure is formed, top aisle spare is more than the 70% of tower section product；Layered tower top plate (5) both ends liter vapour barrel two
The vertical riser closing connection at end or the vertical riser than rising vapour barrel (4) both ends stretch out more than 10mm；Layered tower top plate (5)
Elongated rectangular shape plate thickness 3-10mm, plate level slanted angle are 0 ° -70 °, and plate spacing is 10-100mm, and plate width is plate spacing 3-
20 times.
Suitable large-scale tower liquid header provided by the utility model, vapour barrel and layered tower top are risen by trapezoid
Harden structure makes oil sump tank bottom plate percent opening and gas channel cross-sectional area ratio be all higher than more than 50%, it is ensured that the pressure drop of liquid header
Less than 100Pa；Inverted trapezoidal space and the installation of oil sump tank bottom plate low dip in oil sump tank solve oil sump tank liquid residence time
Long problem, reduce the coking and blocking phenomenon of collection oil phase；It is complete that layered tower top plate beveled structure ensure that liquid is collected；Strip
Groove profile rises vapour barrel and layered tower top board structure ensure that the low spatial height of large-scale tower oil sump tank and good gas are distributed
Effect, sheet material consumption is low, manufactures and easy for installation.
Claims (1)
- A kind of 1. low pressure drop liquid header of suitable large-scale tower, it is characterized in that being provided with rectangle arranged side by side in oil-collecting box plate face Strip hole, percent opening is more than the 50% of tower section product, hole both ends are inclined apart from more than tower wall 100mm, bottom plate along strip hole direction 0 ° -9 ° are connected completely with tower wall obliquely, and a liter vapour barrel is fully connected above rectangular slat hole；It is strip groove profile to rise vapour barrel, Section along strip direction is trapezoid structure, and both ends are vertical riser, and trapezoid barrel vertical height is 200-1000mm；Just Trapezoidal barrel upper end is mounted on the layered tower top plate that 3-30 layer elongated rectangular shape plate parallel series form, the layered tower top plate bottom Plate stretches out trapezoid barrel 10-200mm, stretches out 10-200mm than lower plywood arrival end per the laminate port of export, top plate will The vertical channel for rising vapour cylinder covers completely, and the interior edge and outer line of layered tower top plate are beveled structure；Two rise vapour barrel Layered tower top plate between space formed inverted trapezoidal structure, top aisle spare be more than tower section product 70%；Layered tower top More than 10mm is stretched out in plate both ends with the vertical riser closing connection or the vertical riser than rising vapour barrel both ends for rising vapour barrel both ends； The elongated rectangular shape plate thickness 3-10mm of layered tower top plate, plate level slanted angle are 0 ° -70 °, and plate spacing is 10-100mm, and plate is wide Spend for 3-20 times of plate spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720283341.3U CN206793082U (en) | 2017-03-22 | 2017-03-22 | A kind of low pressure drop liquid header of suitable large-scale tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720283341.3U CN206793082U (en) | 2017-03-22 | 2017-03-22 | A kind of low pressure drop liquid header of suitable large-scale tower |
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| CN206793082U true CN206793082U (en) | 2017-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807104A (en) * | 2017-03-22 | 2017-06-09 | 中国石油大学(华东) | A kind of low pressure drop liquid header of suitable large-scale tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807104A (en) * | 2017-03-22 | 2017-06-09 | 中国石油大学(华东) | A kind of low pressure drop liquid header of suitable large-scale tower |
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