CN206046001U - A kind of gas-liquid mixed allotter - Google Patents
A kind of gas-liquid mixed allotter Download PDFInfo
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- CN206046001U CN206046001U CN201621032389.9U CN201621032389U CN206046001U CN 206046001 U CN206046001 U CN 206046001U CN 201621032389 U CN201621032389 U CN 201621032389U CN 206046001 U CN206046001 U CN 206046001U
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- inner tube
- gas
- outer tube
- baffle plate
- liquid mixed
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Abstract
A kind of gas-liquid mixed allotter, including outer tube (4), inner tube (5), baffle plate (3) and the splash-back (1) being located above baffle plate (3) at the top of outer tube (4) and inner tube (5), external diameter of described outer tube (4) internal diameter more than described inner tube (5), and outer tube is connected by described baffle plate (3) with inner tube top, described baffle plate (3) is ring plate, described splash-back (1) is connected with baffle plate (3) by connecting rod (2), axial length of the axial length of the outer tube (4) more than said inner tube (5), inner tube (5) bottom end closure and space is left between outer tube (4) lower horizontal face.This utility model can effectively reduce impact of the liquid level to liquid phase flow in single allotter on tower tray, and compact conformation, reduced pressure, it is adaptable to logistics reallocation between the distribution of solid particle bed starting material stream and bed in distillate hydrogenation processing meanss.
Description
Technical field
This utility model is related to a kind of gas-liquid mixed allotter of chemical field, more particularly, it relates to a kind of hydrogenation is anti-
Answer the gas-liquid mixed distributor in device.
Background technology
Many catalytic reaction processes are all completed in a series of fixed bed reactors for including independent beds.
There is the reactor for being much applied to various process in the fields such as chemical industry, petroleum refining, these reactors can be by liquid phase or gas-liquid
Mixing phase partitioning is to solid particle bed.Such as catalytic dewaxing, hydrodesulfurization, HDM, hydrodenitrogeneration etc. are present
By the process in liquid phase or gas-liquid mixed phase partitioning to beds.In this down-type fixed-bed reactor, it is flowing to
Before on catalyst bed bed boundary, the mixing of fluid and evenly distributing just seem particularly significant.This is because suitable mixing and
Uniform fluid distribution can bring many advantages, and such as higher catalyst utilization, reduction top catalyst bed wear and tear, carry
High product yield, extension fixture cycle of operation etc..In one good catalytic reactor, flow distribution device should meet following several
Individual condition：(1) in the range of a larger liquid phase mass flow the uniform fluid of beds can be supplied to divide
Match somebody with somebody；(2) there is preferable repellence, i.e. flow to be affected little by the liquid level on tower tray the gradient of distribution tray；(3)
With good fluid spray angle at utmost reducing for scattered catalyst bed layer height radially further.Therefore,
The in the design impact fully taken into account by above-mentioned factor.
US3218249 discloses a kind of traditional bubble cap distribution tray.It is uniform some by downspout in this distribution tray
With the allotter of bubble cap composition.The major defect of this allotter is very sensitive to the liquid level change on tower tray, and this is in height
It is particularly evident under gas phase loading condiction.Pressure ladder is formed as vapor liquid equilibrium is acted in space above distribution tray in addition
Degree, these liquid phase flow effects to single allotter are larger.
US5158714 discloses a kind of modified model bubble cap allotter, mainly including bubble cap, downspout and connecting rod.This
Allotter is planted by using the interior inlay fluid diffuser of different reinforcement liquid dispersions to improve the liquid phase of each export distributor
Local distributing uniformity, but due to the presence of interior inlay fluid diffuser, the friction pressure loss of gas-liquid two-phase fluid in downspout
Increase, in causing single allotter, liquid phase flow is affected larger by tower tray liquid level, so as to reduce entirety to a certain extent
Distributing uniformity.
CN200963585A discloses a kind of suction type allotter, is mainly made up of bubble cap, downspout, stream breaker.Bubble cap
Employ improved spiral type bar seam.Compared with traditional bubble cap allotter, the distributing uniformity of single allotter is optimized, is changed
It has been apt to the excessive problem of radial distribution peak value.But still have the shortcomings that fluid flow is affected larger by liquid level.
CN201959779A discloses a kind of improvement bubble cap allotter.Compared with traditional bubble cap allotter, bottom is increased
Portion's fluid diffused component, to a certain degree improves single allotter distributing uniformity, equally exists inapplicable high gas phase load bar
Part, the problems such as affected larger by tower tray liquid level.
In sum, though these allotters improve the uneven problem of fluid distribution to a certain extent, still suffer from flow
The problems such as larger, operating flexibility is little is affected by tower tray liquid level.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of gas-liquid mixed allotter, by new design structure
The distribution flow having to solve original technology is affected the shortcomings of larger, operating flexibility is little by tower tray liquid level change.
To solve the above problems, this utility model provide gas-liquid mixed allotter, including outer tube 4, inner tube 5, positioned at outer
Baffle plate 3 at the top of pipe 4 and inner tube 5 and the splash-back 1 above baffle plate 3, described 4 internal diameter of outer tube are more than described inner tube 5
External diameter, and outer tube is connected by described baffle plate 3 with inner tube top, and described baffle plate 3 is ring plate, described splash-back
1 is connected with baffle plate 3 by connecting rod 2, and the axial length of the outer tube 4 is more than the axial length of said inner tube 5,5 bottom of inner tube
Close and space is left between 4 lower horizontal face of outer tube.
During working condition, gas-liquid two-phase is flow on splash-back from above gas-liquid mixed allotter, and splash-back causes biphase
Logistics flows to both sides.Subsequently gas-liquid two-phase can occur to separate, and liquid phase is gradually assembled in distribution tray due to action of gravity, gas phase
Then assemble above liquid phase.When liquid level reaches outer tube wall perforate height, liquid phase is initially entered in outer tube, now gas phase
The runner that resistance can be selected minimum is flowed, i.e., by flowing in inner tube, subsequently by unique gaseous phase outlet at the top of inner tube
Fluting on i.e. interior tube side wall flows out.The gas phase flowed out in being slotted by the liquid phase flowed in outer tube wall perforate and by interior tube side wall
Produce in the narrow and small annular space that outer tube and inner tube are formed and be vigorously mixed and disturb, and urged by the outlet at bottom flow direction lower section of outer tube
In agent bed.As the area of annular space is less than the outlet at bottom area of outer tube, therefore gas-liquid two-phase logistics is being flow to from annular space
During outlet at bottom, flow velocity can be reduced suddenly, so as to form atomized drop, enhance gas-liquid two-phase dispersion effect.
The gas-liquid mixed allotter that this utility model is provided has the beneficial effect that：
The gas-liquid mixed allotter that this utility model is provided causes gas-liquid two-phase respectively by not using the setting of inner and outer pipes
Same runner is flowed in allotter, and the structure slotted by outer tube wall perforate and interior tube side wall causes gas-liquid two-phase obtaining
Occur enough sufficiently to mix after momentum, the aerosol dispersion to liquid phase is realized by the enlargement in section of fluid issuing subsequently.This reality
Influence degree of the liquid phase flow by liquid level on tower tray in single allotter, and compact conformation can be effectively reduced with new,
Pressure drop is relatively low, it is adaptable to thing between the distribution of solid particle bed starting material stream and bed in different fractions oil hydrotreater
Stream reallocation.
Description of the drawings
The technical scheme implemented in this utility model is stated for clearer, below to the accompanying drawing content described in embodiment
Elaborate.
The structural representation of the gas-liquid mixed allotter that accompanying drawing is provided for this utility model.
Description of symbols：
1st, splash-back；2nd, connecting rod；3rd, baffle plate；4th, outer tube；5th, inner tube；6th, slot；7th, perforate；8th, sealing plate.
Specific embodiment
Clear, complete retouching is carried out to the specific embodiment of this utility model gas-liquid mixed allotter below in conjunction with the accompanying drawings
State.
This utility model provide gas-liquid mixed allotter, including outer tube 4, inner tube 5, at the top of outer tube 4 and inner tube 5
Baffle plate 3 and the splash-back 1 above baffle plate 3, the external diameter of described 4 internal diameter of outer tube more than described inner tube 5, and outer tube and interior
Pipe top is connected by described baffle plate 3, and described baffle plate 3 is ring plate, and described splash-back 1 is by connecting rod 2 and gear
Plate 3 is connected, the axial length of the axial length of the outer tube 4 more than said inner tube 5,5 bottom end closure of inner tube and with 4 bottom of outer tube
Space is left between horizontal plane.
Preferably, described splash-back is circular or rectangular flat, and the geometric center of described splash-back is located in baffle plate
The vertical direction of heart axle.
Preferably, the external diameter with diameter greater than said inner tube of described splash-back inscribed circle.
Preferably, described outer tube wall is provided with least one round hole, the lower horizontal of described round hole
Face is located on inner tube lower horizontal face.
Preferably, a diameter of 4～12mm, more preferably 6～10mm of described round hole.
Preferably, the number of described round hole is 1～8, more preferably 2-6.
Preferably, the side wall of described inner tube is provided with bar shaped fluting, and the lower horizontal face of bar shaped fluting is opened positioned at circle
On the top level of hole.Wherein, the length of the bar shaped fluting of described bar shaped fluting is 10～60mm, and width is 1～20mm.
Preferably, the length of described bar shaped fluting is 25～40mm, and width is 6～12mm.Bar shaped fluting on described interior tube side wall
Number be 1～10, preferably 2～8.
The structure and using method of the gas-liquid mixed allotter of this utility model offer are provided by the following examples.
Embodiment 1
Gas-liquid mixed dispensing arrangement is illustrated as shown in drawings, mainly by splash-back 1, outer tube 4, inner tube 5, and 3 groups of baffle plate
Into.Splash-back 1 is located above baffle plate 3, and splash-back 1 is connected with baffle plate 3 by connecting rod 2, and baffle plate 3 is positioned at outer tube 4 and described interior
The top of pipe 5.Splash-back 1 is arranged above baffle plate 3, and is connected with baffle plate 3 by connecting rod 2, and splash-back 1 is by circular or rectangle
Flat board is constituted, and is welded in the top of connecting rod 2, and the geometric center of splash-back 1 is located at the vertical direction of 3 central shaft of baffle plate.Baffle plate 3
Below connecting rod 2, be connected with connecting rod 2 by welding, baffle plate 3 is ring plate, its external diameter be slightly less than outer tube 4 outward
Footpath, internal diameter of its internal diameter slightly larger than inner tube 5.Outer tube 4 is located at the outside of said inner tube 5, and the internal diameter of outer tube 4 is outer more than inner tube 5
Footpath, and outer tube 4 and 5 top of inner tube are in same level, and be weldingly connected by described baffle plate 3, the length of outer tube 4 is big
In the length of inner tube 5, look up from Vertical Square, 5 lower horizontal face of inner tube is higher than 4 lower horizontal face of outer tube.Circular splash-back
External diameter of the minimum edge length of diameter or rectangle splash-back more than said inner tube 5.2 circumference are provided with 4 side wall of outer tube symmetrical
Round hole 7, the lower horizontal face of round hole 7 are located on 5 lower horizontal face of inner tube, a diameter of 8mm of round hole 7.
Be provided with 4 bar shapeds fluting 6 on 5 side wall of inner tube, the lower horizontal face of bar shaped fluting 6 be located at 7 top level of round hole it
On, the length of bar shaped fluting is 30mm, and width is 8mm.The bottom of inner tube 5 is provided with sealing plate 8, phase is welded with inner tube 5
Even, for sealing runner.
During working condition, gas-liquid two-phase is flow on splash-back 1 from above gas-liquid mixed allotter, and splash-back 1 causes two
Phase logistics flows to both sides.Subsequently gas-liquid two-phase can occur to separate, and liquid phase is gradually assembled in distribution tray due to action of gravity, gas
Phase is then assembled above liquid phase.When liquid level reaches 7 height of side-wall hole on outer tube 4, liquid phase is initially entered in outer tube,
The runner that now gas phase can select resistance minimum is flowed, i.e., flowed in inner tube 5 by the top of inner tube 5, subsequently by only
One gaseous phase outlet is that the fluting 6 on 5 side wall of inner tube flows out.By the liquid phase flowed in 4 side-wall hole 7 of outer tube and by 5 side of inner tube
The gas phase flowed out in wall fluting 6 produces in the narrow and small annular space that outer tube 4 and inner tube 5 are formed and is vigorously mixed and disturbs, and by outer
The outlet at bottom of pipe 4 is flowed in underlying catalyst bed.As the area of annular space is less than the outlet at bottom area of outer tube, therefore gas
The biphase logistics of liquid flow velocity when outlet at bottom is flow to from annular space can be reduced suddenly, so as to form atomized drop, enhance gas-liquid two
Phase dispersion effect.
Above-described embodiment is only for illustration of the utility model, is not limitation of the utility model.This area it is common
Technical staff on the premise of without departing from spirit and scope of the present utility model can also make a variety of changes and deform, therefore
Technical scheme used should also belong to category of the present utility model, and scope of patent protection of the present utility model should be by claim
Limit.
Claims (10)
1. a kind of gas-liquid mixed allotter, it is characterised in that including outer tube (4), inner tube (5), positioned at outer tube (4) and inner tube (5)
The baffle plate (3) at top and the splash-back (1) being located above baffle plate (3), described outer tube (4) internal diameter are more than described inner tube (5)
External diameter, and outer tube is connected by described baffle plate (3) with inner tube top, and described baffle plate (3) is ring plate, and described is anti-
Splash plate (1) to be connected with baffle plate (3) by connecting rod (2), the axial length of the outer tube (4) is more than the axial direction of said inner tube (5)
Length, inner tube (5) bottom end closure and leaves space between outer tube (4) lower horizontal face.
2. gas-liquid mixed allotter according to claim 1, it is characterised in that described splash-back (1) is circular or square
Shape flat board, the geometric center of described splash-back (1) are located at the vertical direction of baffle plate (3) central shaft.
3. gas-liquid mixed allotter according to claim 2, it is characterised in that described splash-back (1) inscribed circle it is straight
External diameter of the footpath more than said inner tube (5).
4. gas-liquid mixed allotter according to claim 1, it is characterised in that described outer tube (4) side wall be provided with to
A few round hole, the lower horizontal face of described round hole are located on inner tube lower horizontal face.
5. gas-liquid mixed allotter according to claim 4, it is characterised in that a diameter of the 4 of described round hole～
12mm。
6. gas-liquid mixed allotter according to claim 5, it is characterised in that a diameter of the 6 of described round hole～
10mm。
7. gas-liquid mixed allotter according to claim 4, it is characterised in that the number of described round hole is 1～8
It is individual.
8. gas-liquid mixed allotter according to claim 1, it is characterised in that the side wall of described inner tube (5) is provided with
Bar shaped is slotted, and the lower horizontal face of bar shaped fluting is located on round hole top level.
9. gas-liquid mixed allotter according to claim 8, it is characterised in that the bar shaped fluting of described bar shaped fluting
Length is 10～60mm, and width is 1～20mm.
10. gas-liquid mixed allotter according to claim 9, it is characterised in that the length of described bar shaped fluting is 25
～40mm, width are 6～12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032389.9U CN206046001U (en) | 2016-08-31 | 2016-08-31 | A kind of gas-liquid mixed allotter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032389.9U CN206046001U (en) | 2016-08-31 | 2016-08-31 | A kind of gas-liquid mixed allotter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206046001U true CN206046001U (en) | 2017-03-29 |
Family
ID=58374875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621032389.9U Active CN206046001U (en) | 2016-08-31 | 2016-08-31 | A kind of gas-liquid mixed allotter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206046001U (en) |
-
2016
- 2016-08-31 CN CN201621032389.9U patent/CN206046001U/en active Active
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