CN108245917A - Ligulate sieve pore downspout - Google Patents
Ligulate sieve pore downspout Download PDFInfo
- Publication number
- CN108245917A CN108245917A CN201810250999.3A CN201810250999A CN108245917A CN 108245917 A CN108245917 A CN 108245917A CN 201810250999 A CN201810250999 A CN 201810250999A CN 108245917 A CN108245917 A CN 108245917A
- Authority
- CN
- China
- Prior art keywords
- liquid
- tower
- downspout
- plate
- gas
- 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.)
- Pending
Links
- 239000011148 porous material Substances 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000003595 mist Substances 0.000 claims abstract description 5
- 230000001174 ascending effect Effects 0.000 claims abstract description 4
- 230000007423 decrease Effects 0.000 claims abstract description 3
- 230000000630 rising effect Effects 0.000 claims abstract 3
- 230000002035 prolonged effect Effects 0.000 claims abstract 2
- 210000005182 tip of the tongue Anatomy 0.000 claims description 5
- 210000005181 root of the tongue Anatomy 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000005201 scrubbing Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
- B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/22—Fractionating columns in which vapour bubbles through liquid with horizontal sieve plates or grids; Construction of sieve plates or grids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Ligulate sieve pore downspout.Technical field：Oil, chemical industry, the environmental protection equipment tower plate column present invention are to be provided with porous aft cover plate liquid flow path direction is made porous to be spilt from be vertically changed to that arcwall face passes through on face to tower plate surface the downspout lower opening boom plate shape that is changed to retroflect, and liquid stream is made parabolically to spread to column plate by the effect of lifting of screen ascending air, and increase time of contact；It does not set and holds the gas liquid interfacial area that liquid zone not only increases 10%, the airflow direction for holding liquid zone rising is also made to shed liquid with decline liquid stream arc and lifts prolonged action time of contact, has and promotes gas-liquid contact and impact mist effect.
Description
Technical field：Oil, chemical industry, environmental protection equipment tower -- plate column
Tower is needed to detach there are many process in oil, chemical industry, environmental protection industry (epi), the purposes of tower is divided into two big types, and one
It is that destilling tower is detached by the volatile difference of substance；Another type absorption tower is to be come into full contact with by gas-liquid and contained gas
Some target substances are transferred in liquid, their something in commons are all that requirement tower provides abundant and effective contact surface for it
Product, the substance total amount that China needs tower to handle at present is about more than the 20% of the whole world, and the own technology in terms of tower is very
It is few.It is mostly domestic using packed tower in small treating capacity -- filler therein is mostly Counterfeit Item, but the packed tower when treating capacity is big
Because tower diameter is excessive and occur that gas is unevenly distributed and gas short circuit and largely reduce column efficiency -- therefore high throughput
When plate column be inevitable choice：Such as valve tower is selected in oil refining；Excessive in field of environment protection tolerance, float valve is jacking up position for a long time
Become fixed sieve pore and lose advantage, there is presently no good selections.And the used large-scale plate column majority in China is state
Outer import.Therefore present inventors have proposed a series of designs for changing traditional form tower (in separate case《Oval ripple sieve pore tower
Plate》、《Ellipse head sieves cap column plate》It is that plate column critical piece column plate is optimized；《There is the downspout of aft cover plate》It is to drop
The improvement of liquid pipe and liberated hold liquid zone), this case be series design a part.Traditional plate column has about in column plate plane
The circle string of 10% area exist side by side have one block of plate perpendicular to column plate plane its on column plate top downflow weir；It is cried below column plate plane
Downspout.Traditional descending liquid pipe is the height for being approximately equal to downflow weir from column plate perpendicular to the bottom of column plate with downflow weir one.
It is liquid-bearing pan (i.e. without screen hole or other liquid -- the original paper of gas contact) below downspout.Liquid-bearing pan typically constitutes from column plate area
10% or so falls because the liquid that undertake entire column plate is concentrated, if therefore the larger trepanning of hydraulic shock power or to fill other towers former
The phenomenon of leakage can occur for part majority.It is imitated according to all kinds of column plates (turbogrid tower, vertical sieve plate column, counter direction jet trays tower, Lin Deta etc.)
The rate research present invention attempts to be impacted come barrier liquid with sieve pore mask plate, liberates liquid-bearing pan -- increase by 10% column area.
The flowing of the liquid of vertical direction is changed direction and is spilt for arc direction diverging in column plate by downspout middle and lower part shape mask plate of retroflecting, and is risen
To certain guiding shunting function；The angle and liquid of aft cover plate are formed by the flow velocity of sieve pore is similar to parabola to this tower
Layer downflow weir direction is advanced, and is influenced by plate face ascending air and can form a kind of gas-liquid contact state different from tradition -- have
The phenomenon that being similar to vertical sieve plate column a bit；Liquid, which drenches from hole, in sieve pore downspout destroys frothing, non-aqueous square
To the mist phenomenon that is formed to gas-liquid contact on the column plate of place of waterline have certain restraint.
Description of the drawings：Fig. 1 is ligulate descending liquid working state figure in tower；Fig. 2 is ligulate downspout schematic shapes；Fig. 3
It is traditional to hold liquid zone column plate schematic diagram；Fig. 4 is that present invention nothing holds liquid zone column plate schematic diagram, is for the comparative illustration present invention
It has liberated conventional tower and has held column area shared by liquid zone.
Invention content：The present invention has carried out traditional downspout following reforms.
1st, setting ligulate (see A BC in attached drawing 2) sieve pore aft cover plate makes to hold liquid zone (see the mark of attached drawing 1) not by decline liquid stream
Impact, shape of retroflecting aft cover plate make liquid flow path direction by vertical mighty torrent be changed to circular arc and dissipate spill, and liquid stream is made parabolically to spread to column plate, and
By the effect of lifting of screen ascending air；Gas-liquid contact time than conventional vertical can be longer；Sieve pore is made in ligulate aft cover plate face, opens
Porosity 45-60%, aperture lower part half are that 3-6mm tops half is 6--10mm.Dissipate the weep that spills compared with mighty torrent have more with
Air contact area.It does not set and holds the gas liquid interfacial area that liquid zone not only increases 10% (see attached drawing 3, Fig. 4), also make to hold on liquid zone
The air-flow risen is switched to arc by upwardly direction and further lifts work parallel in tower face and unrestrained liquid stream by the blocking of stream sieve plate is hidden
With liquid stream rotation sky and horizontal force time is extended, to gas-liquid contact and impact mist is promoted to act on.
It is embodied (description of the drawings)：
2nd, set aft cover plate in downspout lower part, aft cover plate be retroflect shape the tip of the tongue it is downward in tower body cylinder (see in attached drawing 2
A) A point heights are h2=1.1--1.3h1Discharge weir height (h1)；The root of the tongue B, C (see B, C in attached drawing 1) point are in descending liquid tube string same
It is accounted on the same plate body of downflow weir of same level in parallel B, C two with column plate on one vertical plane, height is two for h3
At the half of layer column plate spacing, aft cover plate root B, C to top A makes as scrolled up ligulate aft cover plate ligulate aft cover plate face
Sieve pore -- aperture lower part half is that 3-6mm tops half is 6--10mm, percent opening 45-60%.
It is not set on column plate and holds liquid zone (attached drawing 3, Fig. 4).
Description of the drawings
Fig. 1 ligulates hide stream sieve pore downspout
H1=height of weir plate h2=tower trays to aft cover plate the tip of the tongue A height h3=tower trays to aft cover plate root of the tongue BC height
Fig. 2 ligulate sieve pore aft cover plates
Fig. 3 tradition has the tower tray for holding liquid zone
Fig. 4 is without the tower tray for holding liquid zone.
Claims (5)
1. ligulate sieve pore downspout, it is characterised in that be,
A. the boom plate below downspout is rolled into ligulate to tower wall and is provided with more sieve pores, and the tip of the tongue is downward, and liquid stream is made to be thrown in thread
Object line is spread to column plate and by the effect of lifting of screen ascending air；
B. it does not set and holds the gas liquid interfacial area that liquid zone not only increases 10%, the air-flow for also making to hold liquid zone rising is to declining liquid stream row
Effect is further lifted, extends liquid stream rotation sky and horizontal force time, has and gas-liquid contact and impact mist is promoted to act on.
2. the aft cover plate described in claim 1 for having sieve pore is the tip of the tongue with shape of retroflecting downwards in tower body cylinder in closed, the tip of the tongue
Height is h2=1.1--1.3h1Discharge weir height (h1)；Root of the tongue height at two layers of column plate spacing half of downspout is as stream is hidden
Plate, and be provided with porous；Make sieve pore in ligulate aft cover plate face -- aperture lower part half is that 3-6mm tops half is 6--10mm,
Percent opening 45-60%.
3. not setting on column plate described in claim 1 and holding the gas liquid interfacial area that liquid zone not only increases 10%, also make to hold on liquid zone
The air-flow risen is stopped by aft cover plate and switch to be parallel to tower face by upwardly direction also makes to hold the gas of liquid zone rising with declining liquid stream
Stream is stopped by aft cover plate and switchs to non-perpendicular and decline liquid stream by upwardly direction and further lift the rotation of prolonged action liquid stream parallel
The empty and horizontal force time, to promoting gas-liquid contact and impact mist effect.
4. described in claim 2, the hole beaten on ligulate aft cover plate on downspout can be it is circular can also be hole area
Similar tri-angle-holed, a variety of geometries such as square hole diamond hole, plum blossom hole hole.
5. the range applied of the present invention be all there is liquid-gas to exchange and carry downspout tower (such as destilling tower, rectifying column,
Stripping tower；Absorption tower, spray column, scrubbing tower etc.) it is using the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250999.3A CN108245917A (en) | 2018-03-12 | 2018-03-12 | Ligulate sieve pore downspout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810250999.3A CN108245917A (en) | 2018-03-12 | 2018-03-12 | Ligulate sieve pore downspout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245917A true CN108245917A (en) | 2018-07-06 |
Family
ID=62747263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810250999.3A Pending CN108245917A (en) | 2018-03-12 | 2018-03-12 | Ligulate sieve pore downspout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245917A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504426A (en) * | 1982-11-24 | 1985-03-12 | Atomic Energy Of Canada Limited | Gas-liquid contacting apparatus |
| CN1088844A (en) * | 1992-09-28 | 1994-07-06 | 戈里特斯奇公司 | Gas-liquid contact device |
| US5480595A (en) * | 1994-04-28 | 1996-01-02 | Koch Engineering Chemical, Inc. | Vapor-liquid contact tray and downcomer assembly and method employing same |
| US6224043B1 (en) * | 1997-09-10 | 2001-05-01 | Koch-Glitsch, Inc. | Downcomers for vapor-liquid contact trays |
| CN1404410A (en) * | 2000-02-16 | 2003-03-19 | 国际壳牌研究有限公司 | Gas-Liquid contacting tray |
| CN1695768A (en) * | 2005-06-06 | 2005-11-16 | 天津大学 | Pyramidal laying liquid typed high performance mass transfer tray with central downcast pipe |
| CN201775974U (en) * | 2010-06-09 | 2011-03-30 | 石家庄工大化工设备有限公司 | Double helix liquid homodromous flow tower |
| CN204637628U (en) * | 2015-04-12 | 2015-09-16 | 万强 | By liquid flow-guiding type downspout |
| CN107519658A (en) * | 2016-06-20 | 2017-12-29 | Amt国际有限公司 | Column plate component for gas/liquid contact tower |
-
2018
- 2018-03-12 CN CN201810250999.3A patent/CN108245917A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504426A (en) * | 1982-11-24 | 1985-03-12 | Atomic Energy Of Canada Limited | Gas-liquid contacting apparatus |
| CN1088844A (en) * | 1992-09-28 | 1994-07-06 | 戈里特斯奇公司 | Gas-liquid contact device |
| US5480595A (en) * | 1994-04-28 | 1996-01-02 | Koch Engineering Chemical, Inc. | Vapor-liquid contact tray and downcomer assembly and method employing same |
| US6224043B1 (en) * | 1997-09-10 | 2001-05-01 | Koch-Glitsch, Inc. | Downcomers for vapor-liquid contact trays |
| CN1404410A (en) * | 2000-02-16 | 2003-03-19 | 国际壳牌研究有限公司 | Gas-Liquid contacting tray |
| CN1695768A (en) * | 2005-06-06 | 2005-11-16 | 天津大学 | Pyramidal laying liquid typed high performance mass transfer tray with central downcast pipe |
| CN201775974U (en) * | 2010-06-09 | 2011-03-30 | 石家庄工大化工设备有限公司 | Double helix liquid homodromous flow tower |
| CN204637628U (en) * | 2015-04-12 | 2015-09-16 | 万强 | By liquid flow-guiding type downspout |
| CN107519658A (en) * | 2016-06-20 | 2017-12-29 | Amt国际有限公司 | Column plate component for gas/liquid contact tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |