CN1471990A - Forced liquid extracting style parallel spray packing tower plates - Google Patents
Forced liquid extracting style parallel spray packing tower plates Download PDFInfo
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- CN1471990A CN1471990A CNA031304028A CN03130402A CN1471990A CN 1471990 A CN1471990 A CN 1471990A CN A031304028 A CNA031304028 A CN A031304028A CN 03130402 A CN03130402 A CN 03130402A CN 1471990 A CN1471990 A CN 1471990A
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Abstract
A forced liquid lifting type filler tower plate with parallel-flow spray is composed of tower plate unit, down-flow tube, and the parallel-flow spray type mass transfer unit divided into 2-5 separated unit groups in liquid flow direction. The parallel liquid and gas flows are used to lifting the liquid phase on tower plate 2-5 times for full contact between gas and liquid of each tower plate layer, so ensuring higher tower efficiency (increased by 20% or more).
Description
Affiliated technical field
The present invention relates to the gas-liquid mass transfer (contact) equipment in the Chemical Engineering, be that a kind of pressure extract type and stream spray the filler column plate specifically, its characteristics for it be by column plate, downspout, and stream spray mass transfer unit etc. and constitute, and stream injection mass transfer unit is divided into 2～5 separate single tuples along the liquid flow path direction, utilize the gas and liquid flowing extract, liquid phase on the column plate is promoted 2～5 times fully, reach each layer column plate gas-liquid two-phase and fully contact, guarantee column efficiency.
Background technology
The plate column of counter current contacting and packed tower are the gas-liquid mass transfer (contact) equipments that extensively adopts at present, and separative efficiency is higher, but disposal ability is limited.Though and the disposal ability of the packed tower unit cross-sectional area of stream contact is very big, its efficient can only reach a mass transfer theory level at most, therefore uses to be very limited.
Chinese patent (ZL 96 1 10153.9) has proposed a kind of parallel jet compounding tower, utilize common adverse current column plate gravity to fall liquid and the local extract of gas, realize the local gas and liquid flowing operation under the overall counter-current operation condition of gas-liquid, thereby realized high flux, high efficiency.But this column plate is difficult to guarantee uprising gas liquid on the column plate is repeatedly promoted, so gas-liquid two-phase is difficult to abundant mass transfer on the column plate, causes plate efficiency to descend.
Summary of the invention
The present invention aims to provide a kind of pressure extract type and stream sprays the filler column plate.The present invention can overcome the deficiencies in the prior art, under the operating condition big in liquid measure, that tolerance is less relatively, can realize that still uprising gas promotes liquid on the column plate fully or repeatedly lifting, significantly improves the gas-liquid mass transfer performance, guarantees plate efficiency.
The present invention mainly includes tower body, column plate, seal pot, front apron, backboard, perforate, also stream sprays the mass transfer unit formation, and stream injection mass transfer unit is divided into 2～5 separate single tuples along the liquid flow path direction, utilize the gas and liquid flowing extract on every layer of column plate, liquid phase on the column plate is promoted 2～5 times fully, reach each layer column plate gas-liquid two-phase and fully contact, guarantee column efficiency.
Each and stream of the present invention spray and can add some dividing plates in the mass transfer unit and be divided into several little and streams and spray the mass transfer unit body, make that liquid becomes piston flow on the column plate, avoid the generation of liquid dispersion phenomenon on the column plate, can improve plate efficiency more than 10%.As required, can also in the extract pipe, add deflector, improve separative efficiency.
Pressure extract type of the present invention and stream spray the filler column plate and stream sprays height of transfer unit 30～600mm, and its distance from bottom plate height is 5～300mm, and backboard is apart from column plate 0～200mm.Open ratio of plate 1%～30%, perforate can be various geometries such as circular, square, rectangle.And flowing the structure that the filler basket that sprays mass transfer unit can adopt unidirectional or multidirectional sealing, the filler basket can adopt various versions such as cuboid, trapezoidal shape, cylinder.According to different systems and operation operating mode, can fill the filler of all size in the filler basket, also can not fill filler, and adopt other structures such as porous plate, grid, flap.Gas liquid outlet can be the reversible passage vertical with the liquid flow path direction, also can adopt unidirectional or multidirectional runner.For being reduced in the entrainment of high gas speed, and stream sprays mass transfer unit and can adopt height to be staggered.
Pressure extract type provided by the invention and stream spray the packed tower buttress according to concrete operating mode can be designed to be sieve plate, valve plate, and stream spray various column plates such as filler column plate and spray the complex of filler column plate with forcing extract type and stream.
The present invention can overcome the deficiencies in the prior art, under the operating condition big in liquid measure, that tolerance is less relatively, can realize that still uprising gas promotes liquid on the column plate fully or repeatedly lifting, significantly improves the gas-liquid mass transfer performance, guarantees plate efficiency.Pressure extract type provided by the invention and stream spray the filler column plate and are very suitable for occasions such as pressurizing absorption, rectifying, heat exchange, and liquid measure is big, the less relatively occasion of gas phase load, compares with common column plate and can improve plate efficiency under this type of operating mode more than 20%.
Description of drawings
Fig. 1 forces extract type and stream to spray filler column plate front view.
Fig. 2 forces extract type and stream to spray filler column plate vertical view.
Fig. 3 forces extract type and stream to spray packed tower prelaminar part figure.
Fig. 4 forces extract type and stream to spray filler column plate middle part figure.
Fig. 5 forces extract type and stream to spray packed tower postlaminar part figure.
Fig. 6 is that the pressure extract type and the stream that add deflector spray filler column plate figure.
Fig. 7 is the filler basket structure sketch of multiple gas liquid outlet pattern.
The specific embodiment
Specific embodiments of the present invention are described in detail as follows with reference to accompanying drawing:
As shown in drawings, pressure extract type provided by the invention and stream spray the filler column plate, mainly comprise tower body 1, downspout 2, seal pot 3, and stream spray mass transfer unit 4, front apron 5, column plate 7, perforate 11, backboard 10 etc. and partly constitute.Wherein also stream injection mass transfer unit 4 mainly partly is made up of filler basket 6, extract pipe 8, dividing plate 9 etc., and its inside can add also can not add deflector 12.
Show as Fig. 1, pressure extract type provided by the invention and stream spray the filler column plate, to and flow injection mass transfer unit 4 along the liquid flow path direction and be divided into 2～5 groups, each and stream spray and can add some dividing plates 9 in the mass transfer unit 4 and be divided into several little and streams and spray the mass transfer unit body, make that liquid becomes piston flow on the column plate, avoided the generation of liquid dispersion phenomenon on the column plate, can effectively improve plate efficiency and reach more than 10%.Limited and import by front apron 5 and flow in the extract pipe 8 that sprays mass transfer unit 4 from the liquid that the upper strata column plate comes; The perforate 11 of assisting gas to pass column plate 7 from the fraud of lower floor's column plate enters in the extract pipe 8, gas-liquid two-phase is also stream rising in extract pipe 8, strengthen mass transfer and finish gas-liquid separation in the filler of filler basket 6, liquid falls back and enters in the extract pipe 8 of next group and stream injection mass transfer unit 4 on the column plate; Gas rises and enters the last layer column plate.Like this, liquid can be promoted 2～5 times fully by uprising gas on every layer of column plate, reaches gas-liquid and fully mixes, and can obtain very high plate efficiency.
As shown in Figure 1, pressure extract type provided by the invention and stream spray the filler column plate, and stream sprays mass transfer unit 4 height 30～600mm.As shown in Figure 4, and stream to spray mass transfer unit 4 distance from bottom column plates 7 highly be 5～300mm, backboard 10 is apart from column plate 70～200mm.Column plate 7 percent openings 1%～30%, perforate 11 can be various geometries such as circular, square, rectangle.And the filler basket 6 of stream injection unit 4 can adopt the structure of unidirectional or multidirectional sealing, and filler basket 6 can adopt various versions such as cuboid, trapezoidal shape, cylinder.For being reduced in the entrainment of high gas speed, and stream sprays mass transfer unit 4 and can adopt height to be staggered.According to different systems and operation operating mode, can fill the filler of all size in the filler basket 6, also can not fill filler, and adopt other structures such as porous plate, grid, flap.
As shown in Figure 7, pressure extract type provided by the invention and stream spray the filler column plate, and the gas liquid outlet of filler basket 6 can be the reversible passage (a) vertical with the liquid flow path direction, also can adopt unidirectional (b) or multidirectional runner (c) pattern.
Pressure extract type provided by the invention and stream spray the packed tower buttress according to concrete operating mode can be designed to be sieve plate, valve plate, and stream spray various column plates such as filler column plate and spray the complex of filler column plate with forcing extract type and stream.
Below by concrete Application Example the present invention is made an explanation, but for illustrative purposes only rather than the restriction the present invention.
Application Example:
Test in the towers at φ 300, under the normal pressure, adopt air, water thing to experimentize, Ta Nei establishes 1 layer of common single overflow parallel jet compounding tower plate and 1 layer of single overflow forces extract type and stream injection filler column plate to carry out the contrast experiment.
Common single overflow parallel jet compounding tower plate structure parameter is as follows:
Open ratio of plate 6.8% (1-60 * 80 holes).
Single overflow is forced the extract type, and also stream injection packed tower plate structure parameter is as follows:
Open ratio of plate 6.8% (1-60 * 80 holes).
Keep tolerance 260m
3/ h, the liquid evaporation rate of two kinds of column plates of measurement:
| The column plate pattern | Evaporation rate, L/h |
| Common single overflow parallel jet compounding tower plate | ????16.9 |
| Single overflow forces extract type and stream to spray the filler column plate | ????21.0 |
Under the identical operations working condition, to force extract type and stream to spray the filler column plate and compare with common parallel jet compounding tower plate, plate efficiency has improved:
(21.0-16.9)/16.9×100％＝24.2％
Can reach a conclusion thus, force extract type and stream to spray the filler column plate and compare with common parallel jet compounding tower plate, have higher efficient, be the good mass transfer of a kind of application prospect, heat transfer member.
Claims (10)
1, a kind of pressure extract type and stream spray the filler column plate, it is characterized in that it mainly includes tower body, column plate, seal pot, downspout, also stream sprays mass transfer unit and baffle plate, and said baffle plate has front apron, backboard to constitute; Said and stream sprays mass transfer unit and is divided into 2～5 groups along the liquid flow path direction, utilizes the gas and liquid flowing extract, and the liquid phase on the column plate is promoted 2～5 times fully, reaches each layer column plate gas-liquid two-phase and fully contacts.
2, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that said and stream injection height of transfer unit 30～600mm, its distance from bottom plate height is 5～300mm.
3, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that said backboard is apart from column plate 0～200mm.
4, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that said open ratio of plate 1%～30%, perforate can be circular, square, rectangle or random geometry.
5, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that said and stream sprays to add some dividing plates in the mass transfer unit and be divided into several little and streams and spray the mass transfer unit body.
6, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that said and flow the injection mass transfer unit being provided with the filler basket.
7, spray the filler column plate according to the said pressure extract of claim 6 type and stream, it is characterized in that said filler basket can adopt the structure of unidirectional or multidirectional sealing, the filler basket can adopt cuboid, trapezoidal shape or cylindrical structure, according to different systems and operation operating mode, can fill the filler of all size in the filler basket, also can not fill filler, and adopt other structures such as porous plate, grid, flap; Gas liquid outlet can be the reversible passage vertical with the liquid flow path direction, unidirectional or multidirectional runner.
8, spray the filler column plate according to any said pressure extract type of claim 1-7 and stream, it is characterized in that height that said and stream sprays mass transfer unit can height can hang down to be staggered.
9, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that to add or not adding in the said extract pipe deflector.
10, spray the filler column plate according to the said pressure extract of claim 1 type and stream, it is characterized in that it can be sieve plate, valve plate or and flow and spray the filler column plate and force the extract type and flow the complex that sprays the filler column plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130402 CN1211146C (en) | 2003-07-15 | 2003-07-15 | Forced liquid extracting style parallel spray packing tower plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130402 CN1211146C (en) | 2003-07-15 | 2003-07-15 | Forced liquid extracting style parallel spray packing tower plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1471990A true CN1471990A (en) | 2004-02-04 |
| CN1211146C CN1211146C (en) | 2005-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03130402 Expired - Fee Related CN1211146C (en) | 2003-07-15 | 2003-07-15 | Forced liquid extracting style parallel spray packing tower plates |
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| CN (1) | CN1211146C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428976C (en) * | 2005-12-06 | 2008-10-29 | 中国石油天然气集团公司 | Vapour-liquid mass transfering method without amplifying effect |
| WO2013178086A1 (en) * | 2012-05-31 | 2013-12-05 | 北京泽华化学工程有限公司 | Extraction tower |
| CN104959106A (en) * | 2015-07-13 | 2015-10-07 | 大连理工大学 | Air-lift cyclone liquid absorption and liquid falling isolation-type tower plate |
| CN105413622A (en) * | 2015-12-29 | 2016-03-23 | 天津市创举科技有限公司 | Low-backmixing uniform-efficiency tower plate |
| CN109589879A (en) * | 2018-12-29 | 2019-04-09 | 中国船舶重工集团公司第七八研究所 | A kind of gas-liquid mass transfer device |
| CN112316856A (en) * | 2020-09-01 | 2021-02-05 | 河北工业大学 | Equipment and method for producing ethylbenzene by catalytic reaction distillation with concentrated ethylene as raw material |
-
2003
- 2003-07-15 CN CN 03130402 patent/CN1211146C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428976C (en) * | 2005-12-06 | 2008-10-29 | 中国石油天然气集团公司 | Vapour-liquid mass transfering method without amplifying effect |
| WO2013178086A1 (en) * | 2012-05-31 | 2013-12-05 | 北京泽华化学工程有限公司 | Extraction tower |
| US9687755B2 (en) | 2012-05-31 | 2017-06-27 | Beijing Zehua Chemical Engineering Co., Ltd. | Extraction tower |
| CN104959106A (en) * | 2015-07-13 | 2015-10-07 | 大连理工大学 | Air-lift cyclone liquid absorption and liquid falling isolation-type tower plate |
| CN105413622A (en) * | 2015-12-29 | 2016-03-23 | 天津市创举科技有限公司 | Low-backmixing uniform-efficiency tower plate |
| CN105413622B (en) * | 2015-12-29 | 2017-05-03 | 天津市创举科技有限公司 | Low-backmixing uniform-efficiency tower plate |
| CN109589879A (en) * | 2018-12-29 | 2019-04-09 | 中国船舶重工集团公司第七八研究所 | A kind of gas-liquid mass transfer device |
| CN112316856A (en) * | 2020-09-01 | 2021-02-05 | 河北工业大学 | Equipment and method for producing ethylbenzene by catalytic reaction distillation with concentrated ethylene as raw material |
| CN112316856B (en) * | 2020-09-01 | 2021-08-17 | 河北工业大学 | Equipment and method for producing ethylbenzene by catalytic reaction distillation with concentrated ethylene as raw material |
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| Publication number | Publication date |
|---|---|
| CN1211146C (en) | 2005-07-20 |
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Granted publication date: 20050720 Termination date: 20200715 |
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