CN100502993C - Double liquid phase groove type distributor - Google Patents
Double liquid phase groove type distributor Download PDFInfo
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- CN100502993C CN100502993C CNB2007100575899A CN200710057589A CN100502993C CN 100502993 C CN100502993 C CN 100502993C CN B2007100575899 A CNB2007100575899 A CN B2007100575899A CN 200710057589 A CN200710057589 A CN 200710057589A CN 100502993 C CN100502993 C CN 100502993C
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- secondary distributing
- liquid
- distributing slot
- groove
- phase
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Abstract
The present invention relates to a double fluid phase groove type distributing device comprising a primary main groove and a secondary distributing groove. The primary main groove respectively comprises a heavy phase primary main groove and a slight phase primary main groove, and each primary main groove is provided with one to two. The secondary distributing groove is provided with a heavy phase secondary distributing groove and a slight phase secondary distributing groove. The slight phase secondary distributing groove is connected with the bottom of the heavy phase secondary distributing groove. Besides, the liquid lead tube of the slight phase secondary distributing groove is embedded into the heavy phase secondary distributing groove. The lower part of the side wall of the heavy phase secondary distributing groove is provided with an array or a plurality of arrays of little liquid distributing holes, while the upper part of the side wall is provided with an array of overflows. The lower part of the side wall of the slight phase secondary distributing groove is provided with an array or a plurality of arrays of little liquid distributing holes. The present invention has the advantages of simple structure, few area occupied, low current resistance, low pressure, board operation range and easy production and field mounting. The present invention can be widely used in towers such as a distillation tower, particular a distillation tower, an absorption tower, an adsorption tower and a reaction tower in the fields such as chemical, petrochemical, light industry, pharmacy, fertilizer and environmental protection.
Description
Technical field
The invention belongs to the technical field of liquid distribution trough, particularly double liquid phase groove type distributor.
Background technology
Liquid distribution trough is the vital tower internals of packed tower, plays the important function of initial distribution liquid.The quality that liquid initial distributes not only influences the end effect of packing layer, and influences whole filling batch, and the especially structured packing that initial distribution is had higher requirements is bigger to whole bed influence.
Liquid distribution trough flows out power source by liquid can be divided into pressure-type and gravity-type.The pressure-type liquid distribution trough is to rely on the power of pump to spray distribution, and is in the majority with pipe distributor; The gravity-type liquid distribution trough is to rely on the gravity that liquid produced of certain altitude in the liquid distribution trough to distribute.The gravity-type liquid distribution trough mainly comprises slot type, slotted disc type, coiled etc.The gravity-type liquid distribution trough is even because of having liquid distribution, and gas-flow resistance is little, anti-liquid foam entrainment, and anti-the obstruction and the operating flexibility advantages of higher obtained application widely in chemical production field, and tank type liquid distributor is wherein outstanding person especially.It not only has the advantage of gravity-type liquid distribution trough, and has characteristics such as liquid distribution point is many, convenient, the easy level-off of installation maintenance, suitable big tower diameter, so the progress of tank type liquid distributor receives much attention.
Main use is Fig. 1, Fig. 2 and tank type liquid distributor shown in Figure 3 now, is made up of the cell body of rectangle, and it comprises one-level major trough 1, secondary distributing slot 3.The one-level major trough is positioned at the top of secondary distributing slot, has major trough separatory hole 2 and communicate with corresponding secondary distributing slot above corresponding secondary distributing slot on the one-level major trough, and liquid is given following secondary distributing slot in proportion.Have a row or the two liquid apertures 4 of arranging in secondary distributing slot lower sidewall, the liquid that aperture flows out, or directly or indirectly flow to filling surface.
Along with product diversification and raising that product quality is required, special chemical engineering unit operation is more and more, therefore requires the distribution form of liquid distribution trough and precision to improve and to improve.For example, two kinds of mutual exclusive liquid of the person's of existence extract and phegma in some extracting rectifying, if adopt general tank type liquid distributor, will in the distribution tank, produce the phenomenon of layering, the cloth liquid aperture of heavy phase liquid this moment below the secondary distributing slot flows out and distributes, and light phase liquid floats over above the heavy phase liquid, can't evenly distribute by the aperture below the secondary distributing slot, end product can only overflow random distribution on the secondary distributing slot, thereby cause the inhomogeneous of light phase liquid distribution, and then influence mass-transfer efficiency, make can't meet the quality requirement of product.Again for example, feed entrance point in packed tower, the liquid that gets off from above and the feed liquid of tower enter liquid distribution trough one-level major trough simultaneously, when existing two kinds of fluid floies to differ bigger situation, will dominate at the bigger liquid of one-level major trough flow, secondary distributing slot below the one-level major trough can be evenly distributed to, and the less liquid of flow is because the big liquid momentum of phase specific discharge is low, can't be diffused into whole one-level major troughs, near below can only feed liquor, flowing into secondary distributing slot, thereby cause the secondary distributing slot of the less liquid of flow below the one-level major trough can not be evenly distributed to, finally cause two kinds of liquid undercompoundings, skewness in filler, influence the mass transfer separative efficiency, do not reach the product quality requirement equally.
Summary of the invention
The present invention be directed to the deficiencies in the prior art, propose a kind of double liquid phase groove type distributor, exactly at the operation of special process and the dedicated liquid distributor that designs.
Double liquid phase groove type distributor of the present invention comprises one-level major trough and secondary distributing slot; It has comprised heavy phase one-level major trough 5 and light one-level major trough 6 mutually to described one-level major trough respectively, and every kind of one-level major trough is provided with one to two; The secondary distributing slot is provided with heavy phase secondary distributing slot 9 and light secondary distributing slot 12 mutually, light phase secondary distributing slot is connected the bottom of heavy phase secondary distributing slot, the catheter 8 of simultaneously light phase secondary distributing slot is embedded in heavy phase secondary distributing slot inside, be provided with a row or count the liquid aperture 10 of arranging in heavy phase secondary distributing slot lower sidewall, be provided with row's spout hole 17 in its side wall upper part; Be provided with a row or count the liquid aperture 11 of arranging in light phase secondary distributing slot lower sidewall.
The catheter of described light phase secondary distributing slot is welded in the heavy phase secondary distributing slot, and the catheter aperture is greater than light phase one-level major trough separatory bore dia 10-30mm.
Described catheter is one to several rectangular tubes or round tube.
Described heavy phase secondary groove is arranged in the 15-250mm scope with light its spacing of whenever arranging the liquid aperture of secondary groove mutually.
Described secondary distributing slot is outside equipped with liquid blocker 16.Distance between described liquid blocker and the cell body is 10～100mm.
Detailed content of the present invention is as follows:
Double liquid phase groove type distributor is provided with two kinds of one-level major troughs, is divided into heavy phase one-level major trough and light one-level major trough mutually, they be neck and neck the secondary distributing slot above.Every kind of one-level major trough can be arranged one to two according to respective liquid flow situation.Light phase liquid or low flow rate liquid 14, heavy phase liquid or big flow liquid 15 enter this groove respectively separately, are distributed in proportion separately in the following secondary distributing slot by the separatory hole on the one-level groove then.
The secondary distributing slot of double liquid phase groove type distributor equally also is respectively equipped with heavy phase secondary distributing slot and two kinds of light secondary distributing slots mutually, receives heavy phase and light liquid mutually from corresponding one-level major trough respectively.Light phase secondary distributing slot is connected the bottom of heavy phase secondary distributing slot, and the catheter of simultaneously light phase secondary distributing slot is embedded in heavy phase secondary distributing slot inside and welds above it, will import to from the liquid of light phase one-level major trough in the light phase secondary distributing slot.The shape of catheter can be one to several rectangular tubes or round tube, determines according to light phase fluid flow.Have a row or count the liquid aperture of arranging in heavy phase secondary distributing slot lower sidewall, also have row's spout hole in its side wall upper part; Also have a row or count the liquid aperture of arranging in light phase secondary distributing slot lower sidewall.But spout hole is not set in light phase secondary distributing slot side wall upper part.
Through opening the cloth liquid distribution hole on two chamber sidewall of secondary distributing slot regularly, after two kinds of liquid are sprayed on the liquid blocker in the secondary groove outside simultaneously, two kinds of abundant in the above contact mass transfer of liquid, making liquid in the liquid blocker be membranaceous even shape flows down, liquid initial distributed becomes multiple spot or approximate unlimited multiple spot is evenly distributed to filling surface by a distribution, can improve the mass transfer separative efficiency of tower.
In the following situation that double liquid phase groove type distributor can be used for existing in the packed tower operating process: be used in usually:
1. feed entrance point place, the difference of collecting liquid and feed liquid flow above is bigger.
2. the liquid that has two kinds of mutually immiscible or partial miscibilities.
3. the feed entrance point place needs the material of fully mixing or reaction.
4. be useful for biliquid phase, high flow capacity difference liquid distribution trough,
Effect of the present invention is that this structure of distributor is simple, labor and material saving, and occupy-place is low; Gas-flow resistance is little, and pressure drop is low, and the operating flexibility scope is wide, and the cloth dot density is big; Be convenient to make and on-the-spot the installation; Can also simulate in advance and carry out hydraulic experiment, with further checking with improve former design, reach better gas-liquid distribution effect.Can be widely used in the tower such as distillation, special extract rectification, absorption, desorb, reaction in fields such as chemical industry, petrochemical industry, light industry, pharmacy, chemical fertilizer, environmental protection.
Description of drawings
Fig. 1. existing tank type liquid distributor front view;
Fig. 2. existing tank type liquid distributor vertical view;
Fig. 3. existing tank type liquid distributor side view;
Fig. 4. the double liquid phase groove type distributor front view;
Fig. 5. the double liquid phase groove type distributor vertical view;
Fig. 6. the double liquid phase groove type distributor side view;
Fig. 7. the local enlarged diagram of double liquid phase groove type distributor secondary distributing slot.
Wherein: accompanying drawing piece number mark:
1. one-level major trough, 2. major trough separatory hole, 3. secondary distributing slot, 4. secondary groove liquid distributing hole, 5. heavy phase one-level major trough, 6 light phase one-level major troughs, 7 light phase one-level groove separatory holes, 8 catheters, 9 heavy phase secondary distributing slots, 10 heavy phase secondary distributing slot liquid distributing holes, 11 light phase secondary distributing slot liquid distributing holes, 12 light phase secondary distributing slots, 13 heavy phase one-level groove separatory holes, 14 light phase liquid, 15 heavy phase liquid, 16 liquid blockers, 17 spout holes, 18 dividing plates.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
As Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, the present invention is a kind of double liquid phase groove type distributor of being realized by following technical proposals.This distributor comprises the one-level major trough and the secondary distributing slot of rectangle, is the secondary distributing slot of perpendicular layout array distribution under the one-level major trough.The one-level major trough is made up of 2 single chambers and the cell body that bears two kinds of different liquids respectively 2 to 4 single groove boxes, secondary distributing slot.At secondary distributing slot center position, offer the separatory hole of varying number along one-level major trough cell body length direction correspondence in proportion in cell body bottom, separately liquid is imported to respectively in two chambers of following secondary distributing slot; Bottom in the secondary distribution cell body is provided with a horizontal baffle 18 isometric with secondary distribution cell body along its length, and two chambers are separated up and down; Along the length direction of secondary distribution cell body and aim at the separatory hole center position that corresponding one-level major trough is offered, be embedded in the secondary distributing slot one or a few liquid catheter 8 is set, the shape of this catheter can be that rectangle also can be the dividing plate that bottom in the cell body is stretched out in circle and bottom, and its top is concordant or be lower than the upper edge of secondary distribution cell body.Liquid in the corresponding one-level groove can be assigned in the following chamber of secondary distributing slot by this catheter; On the lower sides of two chambers of cell body, offer cloth liquid distribution hole respectively regularly along secondary distributing slot length direction, be provided with the cloth liquid lug-latch 16 that plays mixing and multiple spot distribution effect in the outside of their middle and lower parts, its quantity is identical with the quantity in secondary groove distribution hole, highly be higher than row's distribution hole above the heavy phase secondary distributing slot, the lower surface is with gently secondary distributing slot lower surface is concordant mutually.From heavy phase secondary distributing slot liquid distributing hole 10 with after gently the liquid of secondary distributing slot cloth liquid distribution aperture 11 outflows is sprayed on the liquid blocker mutually, after two kinds of abundant in the above contact mass transfer of liquid, flow to filling surface respectively.
Outside at the secondary distributing slot is provided with liquid blocker, purpose is to make liquid on the liquid distribution plate or in the pipe be membranaceous even shape to flow down, liquid initial distributed becomes multiple spot or approximate unlimited multiple spot is evenly distributed to filling surface by a distribution, has improved the mass transfer separative efficiency of packed tower.
The situation that we have specifically used is:
Certain dethanizer, diameter are 2400mm, and technological process is double liquid phase extraction rectifying.In the extractant feed position, the alkane fluid flow that refluxes from top packing section only is 6-7m
3/ h, and the flow of the extractant of charging is 150-180m
3/ h, two kinds of fluid flow difference reach 25-30 doubly, and two kinds of liquid form immiscible biliquid phase again simultaneously.In the device of certain factory, what adopt in this Position Design is common secondary tank type liquid distributor, produces its alkane yield of back always below 85%, does not reach 95% designing requirement.Tracing it to its cause is because fail to fully take into account the liquid distribution trough distributed pole that biliquid causes mutually in this position inhomogeneous, thereby causes following packing section mass-transfer efficiency to descend, and does not reach designing requirement.
And adopt double liquid phase groove type distributor of the present invention, the result of production operation shows, after adopting the double liquid phase groove type liquid distribution trough, because the even performance of the initial distribution of filler upper end liquid improves, its alkane quality reaches more than 98%, and the alkane yield is all more than 95-97%, surpassed design objective, save big content of starting materials, reduced production cost, obtained huge economic benefit.
Claims (5)
1. a double liquid phase groove type distributor comprises one-level major trough and secondary distributing slot; It is characterized in that described one-level major trough has comprised heavy phase one-level major trough and light one-level major trough mutually respectively, every kind of one-level major trough is provided with one to two; The secondary distributing slot is provided with heavy phase secondary distributing slot and light secondary distributing slot mutually, light phase secondary distributing slot is connected the bottom of heavy phase secondary distributing slot, the catheter of simultaneously light phase secondary distributing slot is embedded in heavy phase secondary distributing slot inside, be provided with a row or count the liquid aperture of arranging in heavy phase secondary distributing slot lower sidewall, be provided with row's spout hole in its side wall upper part; Be provided with a row or count the liquid aperture of arranging in light phase secondary distributing slot lower sidewall; The secondary distributing slot is outside equipped with liquid blocker.
2. double liquid phase groove type distributor as claimed in claim 1 is characterized in that the catheter of described light phase secondary distributing slot is welded in the heavy phase secondary distributing slot, and the catheter aperture is greater than light phase one-level major trough separatory bore dia 10-30mm.
3. double liquid phase groove type distributor as claimed in claim 1 is characterized in that described catheter is one to several rectangular tubes or round tube.
4. double liquid phase groove type distributor as claimed in claim 1 is characterized in that described heavy phase secondary distributing slot is arranged in the 15-250mm scope with light its spacing of whenever arranging the liquid aperture of secondary distributing slot mutually.
5. double liquid phase groove type distributor as claimed in claim 4 is characterized in that the distance between described liquid blocker and the cell body is 10～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100575899A CN100502993C (en) | 2007-06-11 | 2007-06-11 | Double liquid phase groove type distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100575899A CN100502993C (en) | 2007-06-11 | 2007-06-11 | Double liquid phase groove type distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101125262A CN101125262A (en) | 2008-02-20 |
| CN100502993C true CN100502993C (en) | 2009-06-24 |
Family
ID=39093446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100575899A Expired - Fee Related CN100502993C (en) | 2007-06-11 | 2007-06-11 | Double liquid phase groove type distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100502993C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028268A (en) * | 2011-10-08 | 2013-04-10 | 南通苏通分离工程科技有限公司 | Novel liquid distributor |
| CN103028355B (en) * | 2012-12-24 | 2014-07-30 | 天津市创举化工设备有限公司 | Full overflow tank type liquid distributor |
| CN105363388B (en) * | 2015-12-02 | 2018-01-26 | 中国天辰工程有限公司 | A kind of multi-phase fluid distributed architecture for shell and tube reactor |
-
2007
- 2007-06-11 CN CNB2007100575899A patent/CN100502993C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101125262A (en) | 2008-02-20 |
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Granted publication date: 20090624 Termination date: 20130611 |