CN105413222A - Dual layer equal effect tower plate - Google Patents
Dual layer equal effect tower plate Download PDFInfo
- Publication number
- CN105413222A CN105413222A CN201511022739.3A CN201511022739A CN105413222A CN 105413222 A CN105413222 A CN 105413222A CN 201511022739 A CN201511022739 A CN 201511022739A CN 105413222 A CN105413222 A CN 105413222A
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- CN
- China
- Prior art keywords
- plate body
- plate
- upper plate
- calotte
- hole
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- 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
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- 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
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- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a dual layer equal effect tower plate. The tower plate is composed of an upper plate body, a lower plate body, a hat cover, and downcomers; the upper plate body and the lower plate body are horizontally and fixedly arranged in a tower shell and form a dual layer structure with a gap between two plates; an upper plate hole is arranged in the upper plate body, a lower plate hole is arranged in the lower plate body, the upper plate hole is opposite to the lower plate hole; the hat cover is a cylinder with a cover that is vertically arranged right above the upper plate hole, the lower end of the hat cover and the upper plate body are fixedly welded together through a support leg, a bottom gap exists between the lower end of the hat cover and the upper plate body; the middle-upper layer of the lateral wall of the cylinder of the hat cover is provided with a separation hole; a downcomer is arranged between neighbored grade of tower plates, the opening of the lower end of downcomer of the upper grade tower plate only penetrates the upper plate body of the same grade tower plate and is communicated with the plate gap; and the upper end of the downcomer that goes to the lower grade tower plate penetrates the upper plate body and lower plate body and is higher than the upper surface of the upper plate body.
Description
Technical field
The present invention relates to the mass transfer apparatus in Chemical Engineering, be specially a kind of bilayer and all imitate column plate.
Background technology
Plate column is used widely in chemical separating operation as important mass transfer apparatus element.The core component of plate column is column plate, each layout layer of column plate of the plate columns such as traditional float valve, bubble-cap and sieve plate is divided into and falls liquid zone and mass-transfer zone, on every one deck column plate, liquid phase falls liquid zone by one, level flows through mass-transfer zone and arrives another and fall liquid zone, liquid phase gas phase while mass-transfer zone passes mass-transfer zone straight up below mass-transfer zone, come in contact in mass-transfer zone gas phase liquid phase the object reaching mass-and heat-transfer, above gas phase is cross-flow contact with contacting of liquid phase; In cross-flow contact, the liquid phase of unit quantity contacts with the gas phase upwards flowed below mass-transfer zone repeatedly, along with the composition of the prolongation gas-liquid two-phase of time of contact and temperature move closer to, the motive force of mass-and heat-transfer constantly reduces, and the efficiency constantly reducing column plate along with motive force reduces gradually.
It is high that Mitsui shipbuilding Co., Ltd. develops efficiency at 20 century 70s, the vertical column plate that flux is large, thereafter on the basis of vertical column plate, there is multiple modified column plate, as New-VST type column plate, the design feature of this type column plate is the vertical calotte that around arranging above the plate hole of column plate, sidewall has sieve aperture, calotte top has stays apertured cover plate with top side wall, a fixed gap is had with column plate bottom calotte, its gas-liquid contact process can be described as: gas enters in cover from plate hole, the lifting liquid that gap at the bottom of calotte is entered, broken, answer back to cover simultaneously and hit, gas-liquid two-phase is hard hit in cover, broken, turbulence, Surface Renewal is fast, be conducive to gas-liquid contact, then gas-liquid is from the ejection of calotte side opening, and liquid phase is dispersed a large amount of droplet, substantially increases mass transfer area, and the gas-liquid simultaneously between calotte further promotes mass transfer to spray, liquid phase falls back column plate, and gas phase rises to last layer column plate.
But we find that New-VST type column plate is when carrying out gas-liquid mass transfer when practical application, because the liquid phase flowed out from the column plate downspout of upper strata can flow freely in tray surfaces, easily back-mixing is there is in the liquid phase completing gas-liquid mass transfer with the liquid phase ingredient flowed out without mass transfer from downspout, and due to the impact of installation accuracy and mass transfer disturbance, make the liquid layer thickness of tray surfaces uneven, and when the throughput of all calottes is basically identical, liquid layer thickness inequality can cause the mass-transfer efficiency of part calotte to reduce, therefore existing New-VST type column plate is improved, improve the mass-transfer efficiency improving all calottes in column plate, and the back-mixing reducing liquid phase becomes problem demanding prompt solution in prior art.
Summary of the invention
The technical scheme that the present invention solve the technical problem is, designs a kind of bilayer and all imitates column plate, it is characterized in that this column plate is made up of upper plate body, lower body, calotte, downspout; Upper plate body and lower body level are fixedly mounted in tower shell, and upper plate body and lower body composition have the double-decker of sheet separation, and on upper plate body and lower body, correspondence offers plate hole and lower plate hole; Calotte is the covered cylinder be vertically mounted on directly over plate hole, and calotte lower end and upper plate body are welded and fixed by supporting leg, leaves end gap between calotte lower end and upper plate body; There is sorting hole the cylinder side wall middle and upper part of calotte; Described downspout is between adjacent level column plate, and the downspout lower ending opening from higher level's column plate extends only through upper plate body and the sheet separation UNICOM of column plate at the corresponding levels; The downspout upper end going to subordinate's column plate is through upper plate body and lower body and exceed upper plate body upper surface.
Described bilayer all imitates column plate, it is characterized in that the height of sheet separation is more than or equal to 1mm, is less than or equal to 100mm.
The invention provides double-deck column plate of all imitating and realize liquid phase shunting by adopting double-deck plate body and improvement to fall liquid system on the basis of existing New-VST type column plate, liquid phase after shunting can independently enter each calotte, ensure that liquid phase has maximum concentration and temperature difference before contacting with gas phase, realize the maximization of plate efficiency with this and efficiency is homogeneous; Practice shows, the present invention improves 15-25% than conventional tower plate efficiency, and mass-transfer efficiency is higher than New-VST type column plate.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram that a kind of bilayer that the specific embodiment of the invention provides all is imitated column plate and arranged in tower shell;
Fig. 2 is the plan structure schematic diagram that a kind of bilayer that the specific embodiment of the invention provides all imitates column plate;
1 is tower shell, and 2 is downspout, and 3 is calotte, 31 sorting holes, and 32 is supporting leg, and 33 is end gap, and 4 is upper plate body, and 41 is upper plate hole, and 45 is sheet separation, and 5 is lower body, and 51 is lower plate hole.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
As shown in Figure 1, design a kind of bilayer and all imitate column plate, this column plate is made up of upper plate body 4, lower body 5, calotte 3, downspout 2; Upper plate body 4 and lower body 5 level are fixedly mounted in tower shell 1, and upper plate body 4 and lower body 5 composition have the double-decker of sheet separation 45, and on upper plate body 4 and lower body 5, correspondence offers plate hole 41 and lower plate hole 51; Calotte 3 is for being vertically mounted on the covered cylinder directly over upper plate hole 41, and calotte 3 lower end and upper plate body 4 are welded and fixed by supporting leg 32, leave end gap 33 between calotte 3 lower end and upper plate body 4, and there are some sorting holes 31 the cylinder side wall middle and upper part of calotte; Described downspout is between adjacent level column plate, downspout 2 lower ending opening from higher level's column plate extends only through the upper plate body 4 of column plate at the corresponding levels and sheet separation 45 UNICOM, and downspout 2 upper end going to subordinate's column plate is through upper plate body 4 and lower body 5 and exceed upper plate body upper surface.
The operation principle that column plate provided by the invention is arranged in tower shell when going forward side by side promoting the circulation of qi liquid mass transfer operation is as follows
1) liquid phase that upper level column plate flows down enters in sheet separation by downspout 2, liquid phase in sheet separation to be moved between plate hole and lower plate hole at liquid phase static pressure flows by action and is conducted heat with from the gas phase contact mass transfer below lower plate hole, entered in calotte by upper plate hole together after gas-liquid mixed and continue contact mass transfer heat transfer, the liquid phase and the gas phase that enter calotte spray finally by by sorting hole, liquid phase drops on upper plate body, liquid phase goes to next stage column plate through downspout after upper plate body upper surface gathers, and gas phase then continues rising and goes to upper level column plate;
2) when the liquid phase flow in downspout is less can not meet the gas phase risen with lower plate hole fully mix contact time, the liquid phase that upper plate body gathers will be entered in calotte by end gap conducts heat with gas phase contact mass transfer, ensures the operating flexibility of column plate.
In the present embodiment
Upper plate hole and lower plate hole are the circular hole of diameter 100mm, calotte height 200mm, and the outside diameter of cylinder of calotte is 150mm, and sorting hole is the circular hole of diameter 10mm, and the height of sheet separation 45 is 50mm.
The present invention does not address part and is applicable to prior art.
This invention ensures that the feed liquor of each calotte is with the consistent of inlet gas concentration temperature and ensure that the homogeneous of each calotte efficiency, first the liquid that simultaneously upper strata column plate is fallen enter calotte mass-and heat-transfer and in turn ensure that the concentration difference temperature difference of the feed liquor of each calotte and air inlet is maximum, namely ensure that calotte maximizing efficiency, the efficiency of all calottes is high, and to determine the efficiency of column plate high.Its mass-and heat-transfer efficiency of the column plate provided in the overtesting embodiment of the present invention is higher than the New-VST type column plate of same calotte specification and calotte distribution density.
Outstanding advantages of the present invention is: applied widely, and manufacture simple, transformation is convenient, and mass transfer effect improves obviously, remarkable in economical benefits.
Claims (2)
1. bilayer all imitates a column plate, it is characterized in that this column plate is made up of upper plate body, lower body, calotte, downspout; Upper plate body and lower body level are fixedly mounted in tower shell, and upper plate body and lower body composition have the double-decker of sheet separation, and on upper plate body and lower body, correspondence offers plate hole and lower plate hole; Calotte is the covered cylinder be vertically mounted on directly over plate hole, and calotte lower end and upper plate body are welded and fixed by supporting leg, leaves end gap between calotte lower end and upper plate body; There is sorting hole the cylinder side wall middle and upper part of calotte; Described downspout is between adjacent level column plate, and the downspout lower ending opening from higher level's column plate extends only through upper plate body and the sheet separation UNICOM of column plate at the corresponding levels; The downspout upper end going to subordinate's column plate is through upper plate body and lower body and exceed upper plate body upper surface.
2. bilayer as claimed in claim 1 all imitates column plate, it is characterized in that the height of sheet separation is more than or equal to 1mm, is less than or equal to 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022739.3A CN105413222A (en) | 2015-12-29 | 2015-12-29 | Dual layer equal effect tower plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022739.3A CN105413222A (en) | 2015-12-29 | 2015-12-29 | Dual layer equal effect tower plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105413222A true CN105413222A (en) | 2016-03-23 |
Family
ID=55492037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511022739.3A Pending CN105413222A (en) | 2015-12-29 | 2015-12-29 | Dual layer equal effect tower plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413222A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334400A (en) * | 2016-08-31 | 2017-01-18 | 刘卫东 | Vertical sieve plate type air purification device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071972U (en) * | 1990-07-19 | 1991-02-27 | 中国人民解放军第七○一八工厂 | High-efficient bubble cap column |
| CN1220179A (en) * | 1998-11-10 | 1999-06-23 | 天津大学 | Vapour-liquid parallel flow jet contact non-backmixing double-layer tower tray device |
| CN1298751A (en) * | 2000-04-04 | 2001-06-13 | 中国石油化工集团公司 | Tower plate for gas-liquid mass transfer |
| US6682633B1 (en) * | 2000-12-22 | 2004-01-27 | Uop Llc | Apparatus for cocurrent fractional distillation |
| CN1978025A (en) * | 2005-12-05 | 2007-06-13 | 中国石油天然气集团公司 | Three-layer efficient high-speed gas-liquid mass transfer tower board |
| US20090256270A1 (en) * | 2008-04-11 | 2009-10-15 | Bartele Griepsma | Multiple downcorner tray |
| CN102240460A (en) * | 2011-07-27 | 2011-11-16 | 天津市创举科技有限公司 | Jet tray with no leakage |
| CN102527071A (en) * | 2012-01-18 | 2012-07-04 | 天津市创举科技有限公司 | Sandwich gas-liquid uniform jet tray |
| CN203803141U (en) * | 2014-05-14 | 2014-09-03 | 平湖石化有限责任公司 | Liquid collection and redistribution device applied to crylic acid refining process |
| CN205627149U (en) * | 2015-12-29 | 2016-10-12 | 天津市创举科技有限公司 | Column plate is all imitated to bilayer |
-
2015
- 2015-12-29 CN CN201511022739.3A patent/CN105413222A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071972U (en) * | 1990-07-19 | 1991-02-27 | 中国人民解放军第七○一八工厂 | High-efficient bubble cap column |
| CN1220179A (en) * | 1998-11-10 | 1999-06-23 | 天津大学 | Vapour-liquid parallel flow jet contact non-backmixing double-layer tower tray device |
| CN1298751A (en) * | 2000-04-04 | 2001-06-13 | 中国石油化工集团公司 | Tower plate for gas-liquid mass transfer |
| US6682633B1 (en) * | 2000-12-22 | 2004-01-27 | Uop Llc | Apparatus for cocurrent fractional distillation |
| CN1978025A (en) * | 2005-12-05 | 2007-06-13 | 中国石油天然气集团公司 | Three-layer efficient high-speed gas-liquid mass transfer tower board |
| US20090256270A1 (en) * | 2008-04-11 | 2009-10-15 | Bartele Griepsma | Multiple downcorner tray |
| CN102240460A (en) * | 2011-07-27 | 2011-11-16 | 天津市创举科技有限公司 | Jet tray with no leakage |
| CN102527071A (en) * | 2012-01-18 | 2012-07-04 | 天津市创举科技有限公司 | Sandwich gas-liquid uniform jet tray |
| CN203803141U (en) * | 2014-05-14 | 2014-09-03 | 平湖石化有限责任公司 | Liquid collection and redistribution device applied to crylic acid refining process |
| CN205627149U (en) * | 2015-12-29 | 2016-10-12 | 天津市创举科技有限公司 | Column plate is all imitated to bilayer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334400A (en) * | 2016-08-31 | 2017-01-18 | 刘卫东 | Vertical sieve plate type air purification device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 300130 the Binhai New Area of Tianjin Huayuan Industrial Zone (outer ring) Hai Tai innovation six road No. 2 15-1 Applicant after: Tianjin pioneering Polytron Technologies Inc Address before: 300130 East Hospital, Hebei University of Technology, 8 glorious road, Hongqiao, Tianjin Applicant before: Tianjin Chuangju Science and Technology Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |