CN104524802A - Multistage baffle cap column plate - Google Patents
Multistage baffle cap column plate Download PDFInfo
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- CN104524802A CN104524802A CN201410683755.6A CN201410683755A CN104524802A CN 104524802 A CN104524802 A CN 104524802A CN 201410683755 A CN201410683755 A CN 201410683755A CN 104524802 A CN104524802 A CN 104524802A
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- calotte
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Abstract
A multistage baffle cap column plate includes a column plate body and a plurality of caps, the caps are arranged in the column plate body in a running-through manner, the caps are internally provided with a plurality of inclined limiting plates, the limiting plates are respectively arranged on a group of opposite side walls in the caps, the upper ends of the limiting plates are fixed with the caps, the limiting plates are inclined from the upper end to the lower end, gaps are left between the lower ends of the limiting plates and the inner walls of the caps, a plurality of horizontal baffles are arranged on the upper surface of the limiting plates, cap bottoms are arranged at the bottoms of the caps, and gaps are left between the cap bottoms and the caps. The multistage baffle cap column plate as a whole structure is installed and fixed in a gas-liquid mass transfer tower, the gas and liquid contact mass transfer time and the contact area can be increased, and the effect of mass transfer can be improved.
Description
Technical field
The present invention relates to multistage baffling calotte column plate, it is a kind of column plate be arranged in chemical tower equipment, belongs to field of chemical equipment.
Background technology
Tower is a kind of gas-liquid, the liquid liquid contact mass transfer equipment that petroleum and chemical industry field is commonly used, and mainly comprises board-like pedal and material filling type column plate.High efficiency packing pedal effects is high, and production capacity is large, but due to cost high, and be not suitable for the occasion of high pressure and easy coking.Relative to packed tower, common plate column is cheap due to it, is widely used at normal pressure and high pressure operating mode China.
Such as, but because liquid-gas ratio is very large in the operating modes such as large liquid measure absorption, rectifying, the liquid gas mol ratio of water washing decarburization is up to more than 100.For this type of operating mode, common plate column often also can be made the most of the advantage: the liquid receiving area on column plate often occupies very large tower section and amasss, and causes the disposal ability of tower low.As adopted packed tower, in order to by large liquid measure, tower diameter can design very large, and gas is with extremely low gas speed by packing layer, and the little efficiency of mass transfer is low, and water consumption is large, and energy consumption is high.
Fixed float valve plate has that production capacity is large, and plate efficiency is high, and processing and the advantage such as maintenance cost is low, have a wide range of applications at petrochemical industry.At present, industrial fixed float valve plate is mainly circular fixing float valve and float valve two kinds is fixed in bar shaped, these two kinds of fixing float valves mainly contain following characteristics: directly in column plate plane, go out circular and bar shaped projection, using its rim openings as gas phase channel, a valve leg is respectively had to be connected with column plate before and after valve block, support valve block, the angle of valve leg and column plate plane is about 90 degree.For round valve, gas vent is a circular arc, and have certain impetus from the gas of outlet first half ejection to liquid stream plate, and have interception from the liquid of the latter half of ejection of outlet to liquid stream plate, front latter two effect weakens mutually.Fix float valve for bar shaped, gas emission direction is vertical with liquid flow path direction, does not only push away liquid effect, and the gas direction of adjacent two valve blocks ejection is relative, cause serious in spray phenomenon, easily cause back-mixing and entrainment, weaken the mass transfer function of column plate, reduce plate efficiency.Jet tray is provided with the tongue apertures of inclination, and make the direction of ejection air-flow close to level, thus entrainment greatly reduces, air-flow has progradation to liquid stream simultaneously, and therefore gas-liquid flow handling capacity is all higher, and gas flux is large, liquid level drop is little, without air-teturning mixed phenomenon, can reduce plate pressure drop.It is high that jet tray has plate efficiency, and on plate, liquid layer is thinner, the advantage that column plate Pressure Drop is little.But the adaptive capacity of jet tray to load fluctuation is poor, and operating flexibility is little, serious Vapor Entrainment phenomenon may cause plate efficiency to decline, and simultaneously because liquid layer on column plate is too thin, liquid residence time is short, and gas-liquid contact is insufficient, and plate efficiency significantly reduces.
Column plate and filler compound mainly contain overflow-type column plate compounded mix and throngh flowing type tray compounded mix, because throngh flowing type tray structure is simple, be easy to filler compound, are ideal column plate filler complex forms.But existing dual-flow tray compounded mix, the liquid flooding due to structured packing makes the elasticity of composite plate and load-bearing capacity be restricted.
Through retrieval, inventor finds that the patent No. 200510094252.6 discloses rhombus and fixes float valve.But due to the existence of two valve legs, can not solve completely spray and air-teturning mixed phenomenon.At industrial departments such as petrochemical industry, petroleum refining, chemical industry, light industry, environmental protection, medicine and atomic energy, column plate and filler are widely used in the unit processes in chemical synthesis such as distillation, absorption, extraction, absorption, washing, cooling.Filler has the advantages such as separative efficiency is high, pressure drop is little, disposal ability is large, but cost is comparatively large, and operating flexibility is little, requires high to supporting tower internals; Operating flexibility of tray is large, anti-clogging, cost are low, separative efficiency is relatively large, but pressure drop will be comparatively large, and disposal ability is lower.Column plate can be divided into overflow-type column plate and throngh flowing type tray by with or without downspout, and by contrast, existing throngh flowing type tray structure is simple, and in tower, space availability ratio is high, and cost is low, and disposal ability is large, but vapour-liquid is short for time of contact, and mass-transfer efficiency is low, and operating flexibility is little.Desirable tower internals should have the high characteristic of low pressure drop, high efficiency, large operating flexibility, anti-clogging, low cost, large disposal ability and Ta Nei space availability ratio simultaneously.It is one of the effective way of tower internals of realizing ideal by column plate and filler compound.Fibre bundle filler is the high surface linked network formula flexible filler that a kind of liquid phase recently developed is continuous phase, and liquid flooding high cycle speed reaches more than 8m/s, and mass-transfer efficiency is high, and pressure drop is only the 1/2-1/3 of common structured packing.
Inventor also finds patent 201310401260.5 through retrieval, and patent name is vertical blown film column plate, and it comprises a horizontal plate and several calottes; Horizontal plate is provided with several plate holes, is provided with spacing between plate hole; The quantity of orifice plate is equal with the quantity of described calotte; Calotte comprises the vertical cylinder of both ends open, top cover and collet, and top cover and described collet are arranged at upper open end and the lower open end place of described vertical cylinder respectively, and top cover and be equipped with gap between institute's collet with described vertical cylinder; Vertical cylinder is fixed in described plate hole, and is vertically provided with gap between cylinder and described horizontal plate; The shape of the cross section of vertical cylinder and the shape of base are all identical with the shape of described plate hole, and top cover projection in the horizontal plane can vertical cylinder described in shade.The present invention can make gas blow brokenly the form of liquid film by column plate with level, and comparing traditional column plate does not need to overcome liquid layer static pressure, so plate pressure drop is little.But the present invention needs to install calotte one by one, and installing engineering is great, and each calotte all needs at right angle setting, and the requirement of installation is high, in tower, the periodic inspection cost of calotte is high.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention discloses multistage baffling calotte column plate, concrete technical scheme is as follows:
Multistage baffling calotte column plate, comprise column plate body and several calottes, described calotte all runs through and is arranged in column plate body, the surrounding of described calotte is fixedly connected with column plate body, calotte is mutually vertical with column plate body, calotte inside is provided with several current limiting plates tilted, the upper end of described current limiting plate and the inwall of calotte are fixed, the lower end of described current limiting plate is unsettled, current limiting plate is crisscross arranged inner at calotte, the inwall of described current limiting plate and calotte is α angle, described α angle is acute angle, the upper surface of described current limiting plate is provided with the flow-stopping plate of several levels, the bottom of calotte is provided with at the bottom of cap, space is reserved with at the bottom of described cap and between calotte.
Described calotte cross section is rectangle, and the calotte minor face of described current limiting plate and rectangle is fixed.
The bottom height of described current limiting plate is higher than the tip height being positioned at current limiting plate be below adjacent.
By being fixedly connected with calotte with connection leg at the bottom of described cap.
Space is left between the surrounding of described calotte and column plate body.
Surrounding and the column plate body of described calotte are sealedly and fixedly connected.
The width of described flow-stopping plate is identical with current limiting plate, and the length of all flow-stopping plates is identical.
Operation principle of the present invention and beneficial effect are:
The present invention integrally structure installment is fixed in gas-liquid mass transfer tower, and column plate body is horizontally set in gas-liquid mass transfer tower, and the surrounding of column plate body and the volume inwall of gas-liquid mass transfer tower are fixed, and column plate body is vertical each other with gas-liquid mass transfer tower.
In use procedure, gas medium enters in tower from the bottom of gas-liquid mass transfer tower, and discharge from the top of gas-liquid mass transfer tower, liquid medium enters in tower from the top of gas-liquid mass transfer tower, discharges from the bottom of gas-liquid mass transfer tower.Gas medium contacts in gas-liquid mass transfer tower with liquid medium, and mass transport process occurs.
Liquid medium enters in calotte from the top of calotte, liquid drops on current limiting plate, because current limiting plate is obliquely installed, so liquid is all the lower ends flowing to current limiting plate from the upper end of current limiting plate on each current limiting plate, and from the upper end of a current limiting plate below the lower end of a current limiting plate above flows to, flow down successively, increase liquid and flow through path in gas-liquid mass transfer tower, increase the liquid surface area that liquid provides in trickling process, larger mass transfer contact area is provided.
Gas medium enters into after in tower from the bottom of gas-liquid mass transfer tower, gas will enter in calotte, first to walk around at the bottom of cap, the gas process walked around at the bottom of cap can reduce the flowing velocity of gas, gas evenly rises from the surrounding at the bottom of cap and enters in calotte, gas contacts with at the bottom of cap, the liquid of surrounding is full and uniform, increases the area of contact mass transfer.After gas enters calotte inside, gas rising can enter into the space between current limiting plate and calotte inwall, thus restriction gas straight line rises and directly just goes out from calotte, the route of gas process and extending with the time of contact of liquid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is the A direction view of Fig. 1,
Reference numerals list: 1-column plate body, 2-calotte, 3-current limiting plate, 4-flow-stopping plate, at the bottom of 5-cap, 6-connection leg.
Detailed description of the invention
Below in conjunction with detailed description of the invention, illustrate the present invention further.Following detailed description of the invention should be understood only be not used in for illustration of the present invention and limit the scope of the invention.
The present invention has two embodiments:
Embodiment 1:
Fig. 1 is structural representation of the present invention, as seen from the figure, multistage baffling calotte 2 column plate, comprise column plate body 1 and several calottes 2, described calotte 2 all runs through and is arranged in column plate body 1, the surrounding of described calotte 2 is fixedly connected with column plate body 1, calotte 2 is mutually vertical with column plate body 1, calotte 2 inside is provided with several current limiting plates 3 tilted, described neighbouring current limiting plate 3 directions that tilt are symmetrical, current limiting plate 3 is separately positioned on the inner one group of opposing sidewalls of calotte 2, upper end and the calotte 2 of current limiting plate 3 are fixed, current limiting plate 3 tilts from upper end to lower end, gap is left between the lower end of current limiting plate 3 and calotte 2 inwall, the upper surface of described current limiting plate 3 is provided with the flow-stopping plate 4 of several levels, the bottom of calotte 2 to be provided with at the bottom of cap 5, space is reserved with between 5 and calotte 2 at the bottom of described cap.Calotte 2 cross section is rectangle, and described current limiting plate 3 is fixed with calotte 2 minor face of rectangle.The bottom height of current limiting plate 3 is higher than the tip height being positioned at current limiting plate 3 be below adjacent.At the bottom of cap, 5 by being fixedly connected with calotte 2 with connection leg 6.The width of flow-stopping plate 4 is identical with current limiting plate 3, and the length of all flow-stopping plates 4 is identical.Space is left between the surrounding of calotte 2 and column plate body 1.
In this embodiment, gas and liquid can through calotte 2 inside or calotte 2 surroundings, and the contact mass transfer of liquids and gases can complete in the space of calotte 2 surrounding, or completes in calotte 2 inside.
Flow-stopping plate 4 on current limiting plate 3 can effectively prevent liquid inertia on current limiting plate 3 from declining, and changes the flow direction of liquid on current limiting plate 3, and extend liquid flow through route, extend the surface contact mass transfer of gas and liquid.
Embodiment 2:
Surrounding and the column plate body 1 of calotte 2 are sealedly and fixedly connected, and other structures are all identical with embodiment 1.
In this embodiment, liquids and gases all can only realize gas and rise and liquid decline through the inside of calotte 2, realize the contact mass transfer of liquids and gases, so also can reach more stable with desirable mass transfer effect.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technical scheme be made up of above technical characteristic.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (7)
1. multistage baffling calotte column plate, it is characterized in that comprising column plate body and several calottes, described calotte all runs through and is arranged in column plate body, the surrounding of described calotte is fixedly connected with column plate body, calotte is mutually vertical with column plate body, calotte inside is provided with several current limiting plates tilted, the upper end of described current limiting plate and the inwall of calotte are fixed, the lower end of described current limiting plate is unsettled, current limiting plate is crisscross arranged inner at calotte, the inwall of described current limiting plate and calotte is α angle, described α angle is acute angle, the upper surface of described current limiting plate is provided with the flow-stopping plate of several levels, the bottom of calotte is provided with at the bottom of cap, space is reserved with at the bottom of described cap and between calotte.
2. multistage baffling calotte column plate according to claim 1, it is characterized in that described calotte cross section is rectangle, the calotte minor face of described current limiting plate and rectangle is fixed.
3. multistage baffling calotte column plate according to claim 2, is characterized in that the bottom height of described current limiting plate is higher than the tip height being positioned at current limiting plate be below adjacent.
4. multistage baffling calotte column plate according to claim 1, is characterized in that at the bottom of described cap by being fixedly connected with calotte with connection leg.
5. multistage baffling calotte column plate according to claim 1, is characterized in that leaving space between the surrounding of described calotte and column plate body.
6. multistage baffling calotte column plate according to claim 1, is characterized in that the surrounding of described calotte and column plate body are sealedly and fixedly connected.
7. multistage baffling calotte column plate according to claim 1, it is characterized in that the width of described flow-stopping plate is identical with current limiting plate, the length of all flow-stopping plates is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683755.6A CN104524802B (en) | 2014-11-25 | 2014-11-25 | Multistage baffling calotte column plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683755.6A CN104524802B (en) | 2014-11-25 | 2014-11-25 | Multistage baffling calotte column plate |
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| Publication Number | Publication Date |
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| CN104524802A true CN104524802A (en) | 2015-04-22 |
| CN104524802B CN104524802B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410683755.6A Active CN104524802B (en) | 2014-11-25 | 2014-11-25 | Multistage baffling calotte column plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016082667A1 (en) * | 2014-11-25 | 2016-06-02 | 南通苏通分离工程科技有限公司 | Gradient step cap hood tower plate |
| CN107344063A (en) * | 2017-07-31 | 2017-11-14 | 中国科学院广州能源研究所 | A kind of hydrate continuously separates the apparatus and method of gas |
| CN110937646A (en) * | 2019-10-24 | 2020-03-31 | 光大环境科技（中国）有限公司 | Denitrogenation column plate for ammonia still |
| CN114100177A (en) * | 2021-11-11 | 2022-03-01 | 钱卿瑜 | Plate-type packing rectifying tower |
| CN114210083A (en) * | 2021-12-13 | 2022-03-22 | 钱卿瑜 | Plate-type packing rectifying tower |
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| CN101015748A (en) * | 2006-12-28 | 2007-08-15 | 杜佩衡 | Continuous stereo-spray knockout tower |
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| JP4408625B2 (en) * | 2000-12-21 | 2010-02-03 | フルー・コーポレイシヨン | Fluid mixing method and apparatus |
| CN201894867U (en) * | 2010-12-10 | 2011-07-13 | 湖南有色郴州氟化学有限公司 | Anhydrous hydrofluoric acid rectification tower |
| CN102908798A (en) * | 2012-10-22 | 2013-02-06 | 中国石油大学(华东) | Composite column plate with coupling of inclined strip-shaped three-dimensional cover hood and regular fillers |
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2014
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Patent Citations (6)
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| US4698138A (en) * | 1985-05-29 | 1987-10-06 | Mobil Oil Corporation | De-entrainment chimney and method of operation |
| JP4408625B2 (en) * | 2000-12-21 | 2010-02-03 | フルー・コーポレイシヨン | Fluid mixing method and apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016082667A1 (en) * | 2014-11-25 | 2016-06-02 | 南通苏通分离工程科技有限公司 | Gradient step cap hood tower plate |
| CN107344063A (en) * | 2017-07-31 | 2017-11-14 | 中国科学院广州能源研究所 | A kind of hydrate continuously separates the apparatus and method of gas |
| CN110937646A (en) * | 2019-10-24 | 2020-03-31 | 光大环境科技（中国）有限公司 | Denitrogenation column plate for ammonia still |
| CN114100177A (en) * | 2021-11-11 | 2022-03-01 | 钱卿瑜 | Plate-type packing rectifying tower |
| CN114210083A (en) * | 2021-12-13 | 2022-03-22 | 钱卿瑜 | Plate-type packing rectifying tower |
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| CN104524802B (en) | 2016-05-04 |
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