CN1070083C - Trough box type liquid no-limiting distributer - Google Patents
Trough box type liquid no-limiting distributer Download PDFInfo
- Publication number
- CN1070083C CN1070083C CN98111230A CN98111230A CN1070083C CN 1070083 C CN1070083 C CN 1070083C CN 98111230 A CN98111230 A CN 98111230A CN 98111230 A CN98111230 A CN 98111230A CN 1070083 C CN1070083 C CN 1070083C
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- CN
- China
- Prior art keywords
- liquid
- groove box
- spout hole
- distributor according
- trough
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 238000007598 dipping method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 11
- 238000007667 floating Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 10
- 239000007791 liquid phase Substances 0.000 description 9
- 238000012856 packing Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000012296 anti-solvent Substances 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention relates to a trough box type liquid no-limiting distributor which is used for liquid distribution at the top of a stuffing layer of a tower and is composed of a plurality of parallel trough boxes, wherein the trough boxes are communicated with each other, both side walls of each trough box are respectively provided with a row of overflow holes, a flow guiding pipe is arranged outside each overflow hole, and an inclined liquid distributing plate is arranged below the outlets of each row of flow guiding plate so that liquid is downwards distributed in a firm shape. A baffle plate parallel to both of the two side walls is arranged each trough box to cover the overflow holes so as to prevent floating solids from flowing out of the overflow holes along with the liquid. The trough box type liquid no-limiting distributor of the present invention has the advantages of simple structure, strong anti-blockage capacity and uniform liquid distribution.
Description
The present invention relates to the element of tower, specifically, is the liquid distribution trough of packed tower.
Filler towers such as chemical process has various distillations, absorption, extraction, the degassing, concentrate, flowing liquid has one to distribute uniformly in order to make in the filling batch from up to down, guarantee the liquid flow rate equalization in arbitrary unit are on the bed cross section, to improve vapour, the liquid mass-transfer performance of filler, except that well-designed to filler, meticulously make and install meticulously, the packing section top must be equipped with the liquid distribution trough of high comprehensive performance.So-called high comprehensive performance is meant that liquid distribution trough can not only be distributed to the packing layer upper surface equably with the liquid that enters, and will possess combination properties such as pressure drop is low, operating flexibility is big, easy to make, cheap and easy for installation simultaneously.At some the occasion of obstruction taking place easily, in GAS ABSORPTION and regenerator in the chemical fertilizer industry, usually has solid matter in the solution and exist; In the gasoline splitter of ethylene process, usually have polymer fiber or other impurity in the liquid phase; In waste-water treatment tower, various metals and nonmetallic inclusion etc. are usually arranged, the function that under these occasions, also requires liquid distribution trough very strong anti-obstruction to be arranged and collect decorating film in the waste water.
Patent and the actual liquid distribution trough that drops into commercial Application about liquid distribution trough had various different types in the past, as annular tube type, calandria (single and double), slot type (individual layer slot type and double-deck slot type), coiled and slotted disc type or the like.But also all there is shortcoming separately in these liquid distribution troughs: at first they all are to belong to finite point profile liquid distribution trough, so that design howsoever, all are difficult to overcome " end effect " on the filling batch top of causing owing to this inadequate natural endowment.Secondly, also there is the performance deficiency of others separately in they: the operating flexibility as annular tube type is low, not anti-obstruction the: though calandria has solved the operating flexibility problem, but also stop up easily: though slot type has higher operating flexibility, also can be made into overflow type and play the effect that the antisolvent precipitation thing stops up, but it is for floatability decorating film and powerless; Also there is this identical problem in coiled, and pressure drop is bigger; Though and the combination property of slotted disc type distributor is best so far, it makes comparatively trouble, and because its design feature is careless a little as if designing, making, just very easily causes the phenomenon of leakage, thereby influence the liquid distribution effect, even entirely ineffective.
The purpose of this invention is to provide the high anti-effective no point of accumulation liquid distribution device that stops up of a kind of combination property.
Technical scheme of the present invention is as follows:
A kind of trough box type liquid no-limiting distributer, it is made of a plurality of parallel groove boxes, and the distance of two adjacent sidewalls is 50～300mm between the groove box, has groove to communicate with each other between the groove box.The height of groove box can be decided according to the size of tower diameter, the size of liquid measure, the amount that liquid phase contains solid matter, general high 150～800mm.The groove box can be at the bottom of flat, the triangle or at the bottom of the circular arc, preferably at the bottom of the triangle, it not only can collect solid sediment, and can reduce bottom positive local air flow vortex and resistance.One row's spout hole is respectively arranged on the two side of groove box, lateral separation between two adjacent spout holes is 50～200mm, the neglecting liquid measure size greatly of spout hole and deciding, it can be a strip, also can be circular, or vertically have upper and lower spout hole paired, to improve the operating flexibility of distributor, each (to) the groove box of spout hole has catheter outward, the cross section of catheter can be triangle, rectangle, polygon or semicircle, cross-sectional area should guarantee that the liquid that spout hole flows out is unimpeded.There is the liquid distributing board of an inclination below of every row's catheter outlet, and the angle of itself and horizontal plane is 15～70 °, and preferably 30～50 °, the wide 30～150mm of liquid distributing board.Liquid distributing board can be to groove box center opposite tilt, or outside the groove box reversed dip, or direction tilts, in the hope of being evenly distributed.There is a flanging at the edge, lower edge of liquid distributing board, and the wide 3～50mm of flanging is to strengthen no point of accumulation distribution effect.Liquid distributing board is fixed by the distribution grid supporting member that is fixed on the groove box.In the groove box, there are two to be parallel to groove box two side respectively and apart from the plate washer of sidewall 5～70mm, the upper edge of plate washer is higher than the upper edge of spout hole (or going up spout hole), the lower edge is lower than the lower edge of spout hole (or underflow discharge orifice), and plate washer is fixed by the plate washer fixed head that is fixed on the groove box sidewall.Plate washer can stop the proportion that may exist in the liquid phase solid shape floating thing less than liquid phase, in order to avoid it flows out from spout hole with liquid stream, stops up the liquid phase flow channel, or enters packing layer, accumulates at filling surface.Stop the effect of solid shape floating thing in order to improve plate washer, between the lower edge of plate washer and both sides and the sidewall woven wire is housed.
Trough box type liquid no-limiting distributer of the present invention can use materials such as carbon steel, stainless steel, non-ferrous metal, plastics, pottery to make.
Trough box type liquid no-limiting distributer of the present invention, simple in structure, make easily, cost is low, and pressure drop is low, and it has good operating flexibility, liquid is no point of accumulation and evenly distributes, and particularly it has the ponding of good antisolvent precipitation thing, also can stop floating thing obstruction distributor passage and enter packing layer.
Description of drawings:
Fig. 1 is a liquid no-limiting distributer schematic diagram of the present invention, and a is a side view, and b is a vertical view.
Fig. 2 is the cross sectional representation of catheter 2, a rectangle; The b triangle; The c semicircle; The d polygon.
Fig. 3 is the vertical section schematic diagram of groove box 1, and a is flat; At the bottom of the b triangle; At the bottom of the c circular arc; D spout hole 5 is a strip.
The schematic diagram of Fig. 4 liquid distributing board 4, a slopes inwardly; B is outward-dipping; C liquid distributing board 4 front views: d liquid distributing board 4 left views.
Each modular construction and size on Fig. 5 groove box 1.
1 is the groove box among the figure, and 2 is catheter, and 3 is plate washer, and 4 is liquid distributing board, and 5 is the underflow discharge orifice, and 6 is last spout hole, and 7 is the distribution grid supporting member, and 8 is the plate washer fixed head: 9 are woven wire.
Further specify the present invention by the following examples.Embodiment 1 HCN regenerator, tower diameter is D=1200mm, former employing structured packing is 4m highly, is equipped with narrow slot type Non-over flow liquid distribution trough.Because material is dirtier, there is solid matter to exist, behind the operation certain hour, find that the degassing (HCN) effect of this tower is very undesirable, can not reach designing requirement.Maintenance finds that many distributions hole of distributor is stopped up by solids, causes the local no liquid of inner-tower filling material layer large tracts of land, and vapour, the serious skewness of liquid influence separating effect.Make them into apparatus of the present invention, be combined into circle by a plurality of parallel groove boxes 1 as shown in drawings, diameter of a circle is φ=1060mm, has groove to communicate with each other between the groove box 1.Groove box 1 highly is h
1=400mm has row's underflow discharge orifice 6 and row's underflow discharge orifice 5, the distance h between upper and lower spout hole (6,5) on the two side of groove box 1
2=100mm has catheter 2, drain pipe range h outside the groove box 1 of every pair of spout hole (5,6)
3+ h
2+ h
4, h
3=200mm, h
4=100mm, h
5=300mm, 1 two adjacent sidewall of groove box apart from x
1=100mm, groove box 1 wide x
2=80mm, the wide b of groove
0=100mm, groove box 1 side thickness b
1=2mm, plate washer 3 thick b
2=1.2mm, liquid distributing board 4 thick b
3=1.2mm, α=90 °, β=30 ° make of the 1Cr18Ni9Ti stainless steel.Installation and Debugging find that the liquid flow and the distribution performance of each piece liquid distributing board are splendid, almost completely reach by point in flakes, are become the no point of accumulation distribution effect of line again by sheet.This tower is carried out operating result shows, at the bottom of the tower in the liquid phase HCN content reach fully and be better than design load, the regeneration steam consumption reduces by 8% than original.One-period operation back maintenance is found, collects solid impurities such as a large amount of silts are arranged in the groove box.Embodiment 2. synthesis ammonia plant waste-water treatment towers, tower diameter φ 2000mm, former employing corrugated plate regular packing is 8m highly, is equipped with double tubular type liquid distribution trough.During new tower, this tower operational circumstances is good, and after operation about half a year, the separating effect and the flux of tower seriously descend, ammon amount severe overweight in the liquid phase at the bottom of the tower.Check and find that inner-tower filling material upper surface and passage are covered and stop up by the solid floating thing.Change into distributor of the present invention, design maximum gauge φ=1900mm highly is h
1=420mm, h
2=100mm, h
3=150mm, h
4=170mm, h
5=250mm, x
1=110mm, x
2=100mm, b
0=100mm, b
1=2mm, b
2=1.5mm, b
3=1.5mm, α=120 °, β=45 ° adopt the 1Cr18Ni9Ti stainless steel to make.Operation shows after the Installation and Debugging, and this distributor can also can make liquid phase reach no point of accumulation distribution effect by effectively catching solid floating thing.Operation result shows, at the bottom of the tower in liquid phase ammonia content than former design best level low by 1.2% (percentage relatively), the treating capacity of tower is than improving 10.6% (percentage relatively) before transforming, operating flexibility improves 2 times than before transforming.Customary overhaul is found after 1 year, has a large amount of decorating films to pile up in the distributor, and the packing layer surface is still comparatively cleaned.Decorating film in the distributor is removed, and this tower is still as new.
Claims (8)
1. trough box type liquid no-limiting distributer, it is characterized in that it is made of a plurality of parallel groove boxes (1), the groove box is communicated with each other between (1), one row's spout hole (5) is respectively arranged on the two side of groove box (1), the groove box of each spout hole (5) has catheter (2) outward, there is the liquid distributing board (4) of an inclination outlet below of every row's catheter (2), liquid distributing board (4) is fixing by the distribution grid supporting member (7) that is fixed on the groove box (1), two plate washers (3) that are parallel to groove box (1) two side are respectively arranged in groove box (1), the upper edge of plate washer (3) is higher than the upper edge of spout hole (54), the lower edge of plate washer (3) is lower than the lower edge of liquid flow hole (5), and plate washer (3) is fixing by the plate washer fixed head (8) that is fixed on groove box (1) sidewall.
2. at the bottom of distributor according to claim 1, the bottom that it is characterized in that groove box (1) are the plane, at the bottom of the circular arc or at the bottom of the triangle.
3. at the bottom of distributor according to claim 2, the bottom that it is characterized in that groove box (1) are triangle.
4. distributor according to claim 1, the cross section that it is characterized in that catheter (2) are triangle, rectangle, semicircle or other polygon.
5. distributor according to claim 1, it is levied is between the lower edge of plate washer (3) and both sides and the sidewall woven wire (9) to be housed.
6. distributor according to claim 1 is characterized in that spout hole (5) is strip or circle.
7. distributor according to claim 1 is characterized in that spout hole is to go up spout hole (5) to become a pair of with underflow discharge orifice (6) arranged vertical, has how in a row to the spout hole arrangement on the two side of groove box (1).
8. distributor according to claim 1 is characterized in that liquid distributing board (4) is outward-dipping or slopes inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111230A CN1070083C (en) | 1998-04-08 | 1998-04-08 | Trough box type liquid no-limiting distributer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111230A CN1070083C (en) | 1998-04-08 | 1998-04-08 | Trough box type liquid no-limiting distributer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1231209A CN1231209A (en) | 1999-10-13 |
| CN1070083C true CN1070083C (en) | 2001-08-29 |
Family
ID=5221225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111230A Expired - Fee Related CN1070083C (en) | 1998-04-08 | 1998-04-08 | Trough box type liquid no-limiting distributer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070083C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086958C (en) * | 1999-11-26 | 2002-07-03 | 南京大学 | Pressure-varying flash vaporizer and pressure-varying deaerating equipment containing it for liquid |
| CN102977919B (en) * | 2012-11-30 | 2015-11-11 | 大连隆星新材料有限公司 | A kind of Liquid distributor for paraffin separation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165398Y (en) * | 1993-05-28 | 1994-05-18 | 张有忠 | Adjustable distributor |
| CN2247048Y (en) * | 1996-01-04 | 1997-02-12 | 中国石化洛阳石油化工工程公司 | Trough type liquid distributor |
-
1998
- 1998-04-08 CN CN98111230A patent/CN1070083C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165398Y (en) * | 1993-05-28 | 1994-05-18 | 张有忠 | Adjustable distributor |
| CN2247048Y (en) * | 1996-01-04 | 1997-02-12 | 中国石化洛阳石油化工工程公司 | Trough type liquid distributor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1231209A (en) | 1999-10-13 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010829 |