CN104492113A - Arc-shaped cover hood tower plate - Google Patents
Arc-shaped cover hood tower plate Download PDFInfo
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- CN104492113A CN104492113A CN201410683562.0A CN201410683562A CN104492113A CN 104492113 A CN104492113 A CN 104492113A CN 201410683562 A CN201410683562 A CN 201410683562A CN 104492113 A CN104492113 A CN 104492113A
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- calotte
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Abstract
The invention discloses an arc-shaped cover hood tower plate. According to the arc-shaped cover hood tower plate, a tower plate body is provided with a plurality of square cover hoods; the square cover hoods are arranged in orthogonal straight lines on the tower plate body; each tower plate arranged between two adjacent cover hoods is hunched up from connections parts with the cover hoods to the middle part so as to form arc-shaped areas; horizontal areas are arranged between adjacent arc-shaped areas; the top parts and the bottom parts of the cover hoods are provided with cover caps and cover bottoms with raised middle parts. According to the arc-shaped cover hood tower plate, mass transfer time is prolonged and mass transfer effect is improved via structure changing; cost is low; effective effects are excellent; installation is convenient; and practical value is high.
Description
Technical field
The present invention relates to arc 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 arc calotte column plate, concrete technical scheme is as follows:
Arc calotte column plate, comprise column plate body, it is characterized in that in described column plate body, rectangular array is provided with several foursquare calottes, described adjacent calotte is connected by arc area, arc area end to end around region be horizontal zone, described arc area arches upward from two ends towards medial arc, the two ends of arc area are fixedly connected with horizontal zone, centre and the horizontal zone of arc area are provided with gap, the top of described calotte is provided with the cap upwards arched upward, and the bottom of calotte is provided with at the bottom of the cap arched upward downwards.
It is round-shaped to arch upward in the center that is at the bottom of described cap and cap, and the diameter of cap is less than the length of side of foursquare calotte.
the lower surface center of described cap is provided with the upper fixed bar being fixedly connected with calotte top sides edge, and the upper surface center at the bottom of described cap is provided with the lower fixed bar being fixedly connected with calotte top sides edge.
At the bottom of described cap and cap and leave gap between calotte.
All leave gap between the surrounding of described calotte and column plate body, and column plate body is connected and fixed by connecting rod and calotte.
One end of described connecting rod and column plate body are fixed near calotte edge on one side, and the other end is fixed on around calotte.
Operation principle of the present invention is:
The column plate body being provided with calotte is arranged in the tower of liquid gas mass transfer, gas enters tower from the bottom of tower, gas rises from bottom to top, at the bottom of the cap that gas arches upward through center, and the region of arching upward of pedal body, gas is flushed at the bottom of the cap arched upward at center, and the region of arching upward of pedal body, when gas is full of at the bottom of the cap arched upward at center, and the region of arching upward of pedal body, gas start at the bottom of cap and pedal body region of arching upward surrounding overflow, increase the time of staying of gas in tower body, and can buffer gas flow velocity and increase the route of gas flow warp, gas is at the bottom of cap and after the surrounding spilling in the region of arching upward of pedal body, upwards continue to rise in the space of gas between pedal body and calotte, liquid flows through from the top down, the space of gas between pedal body and calotte, form moisture film, moisture film can slowly break through by gas from bottom to top, extend the time of contact mass transfer, improve the efficiency of mass transfer.
The invention has the beneficial effects as follows:
Realize the present invention by structure change and can extend the mass transfer time, improve mass transfer effect, cost drops into little, and the beneficial effect brought is given prominence to, and simple installation, has good practical value.
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-arc area, 4-horizontal zone, 5-cap, at the bottom of 6-cap, 7-upper fixed bar, 8-lower fixed bar, 9-connecting rod.
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.
Fig. 1 is structural representation of the present invention, as seen from the figure, this arc calotte 2 column plate, comprise column plate body 1, several foursquare calottes 2 are provided with in described column plate body 1, several foursquare calottes 2 described lay respectively on orthogonal straight line in column plate body 1, and the column plate between described adjacent calotte 2 arches upward from the junction with calotte 2 towards centre, form arc area 3.The present invention, column plate body 1 is fixed in tower, according to the column plate body 1 of the diameter design respective diameters of tower, mass transfer media performance as required, column plate body 1 arranges the calotte 2 of corresponding distribution density, and the foursquare structural design of calotte 2 is conducive to manufacturing, and in use procedure, gas is at calotte 2 surface aggregation, and cohesion and the human body can converge in foursquare four corners, forms droplets fall.
The top of calotte 2 and bottom to be respectively arranged with at the bottom of the cap 5 and cap upwards arched upward at center 6, leave gap at the bottom of cap 5 and cap between 6 and calotte 2.The structural design that at the bottom of cap 5 and cap, arch upward in the center of 6 is conducive to gas and reduces flow velocity and to be that gas is extending transversely in tower open, and increases the mass-transfer efficiency of gas.Leave gap between 6 and calotte 2 at the bottom of cap 5 and cap, conveniently gas and liquid are by the column plate body 1 of not equal altitude, make gas and liquid liquid in tower circulate smooth and easy.
The lower surface center of described cap 5 is provided with the upper fixed bar 7 being fixedly connected with calotte 2 top sides edge, and at the bottom of described cap, the upper surface center of 6 is provided with the lower fixed bar 8 being fixedly connected with calotte 2 top sides edge.6 effects having location and support at the bottom of upper fixed bar 7 and lower fixed bar 8 pairs of caps 5 and cap, to make at the bottom of cap 5 and cap top and bottom that 6 in use stably can be fixed on calotte 2.
All gap is left between the surrounding of calotte 2 and column plate body 1, this gap is used for mass transfer can be run through through column plate body about 1 at liquid or gas, and column plate body 1 is connected and fixed by connecting rod 9 and calotte 2, overall structure of the present invention is stablized, and is all have the stable entirety being connected and fixed relation in use procedure and installation process.
Fig. 2 is the A direction view of Fig. 1, as seen from the figure, is horizontal zone 4 between adjacent arc area 3.Arc area 3 is between any two adjacent calottes 2, after gas enters arc area 3 from rising below, slowly enter the gap between arc area 3 two ends and calotte 2 from the two ends of arc area 3 again, and then, rise from the surrounding of calotte 2, improve the time of contact of the liquid of calotte 2 and the gas risen and decline, improve the mass transfer time.
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 (6)
1. arc calotte column plate, comprise column plate body, it is characterized in that in described column plate body, rectangular array is provided with several foursquare calottes, described adjacent calotte is connected by arc area, arc area end to end around region be horizontal zone, described arc area arches upward from two ends towards medial arc, the two ends of arc area are fixedly connected with horizontal zone, centre and the horizontal zone of arc area are provided with gap, the top of described calotte is provided with the cap upwards arched upward, and the bottom of calotte is provided with at the bottom of the cap arched upward downwards.
2. arc calotte column plate according to claim 1, is characterized in that being at the bottom of cap and cap that center arches upward is round-shaped, and the diameter of cap is less than the length of side of foursquare calotte.
3. arc calotte column plate according to claim 2, it is characterized in that the lower surface center of described cap is provided with the upper fixed bar being fixedly connected with calotte top sides edge, the upper surface center at the bottom of described cap is provided with the lower fixed bar being fixedly connected with calotte top sides edge.
4. arc calotte column plate according to claim 3, is characterized in that leaving gap at the bottom of described cap and cap and between calotte.
5. arc calotte column plate according to claim 4, it is characterized in that all leaving gap between the surrounding of described calotte and column plate body, and column plate body is connected and fixed by connecting rod and calotte.
6. arc calotte column plate according to claim 5, it is characterized in that one end of described connecting rod and column plate body are fixed near the edge of calotte, the other end is fixed on around calotte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683562.0A CN104492113B (en) | 2014-11-25 | 2014-11-25 | Arc calotte column plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683562.0A CN104492113B (en) | 2014-11-25 | 2014-11-25 | Arc calotte column plate |
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| Publication Number | Publication Date |
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| CN104492113A true CN104492113A (en) | 2015-04-08 |
| CN104492113B CN104492113B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410683562.0A Active CN104492113B (en) | 2014-11-25 | 2014-11-25 | Arc calotte column plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016082664A1 (en) * | 2014-11-25 | 2016-06-02 | 南通苏通分离工程科技有限公司 | Curved cap hood tower plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2250594A (en) * | 1990-11-20 | 1992-06-10 | Atomic Energy Authority Uk | A method of temperature measurement and apparatus therefor |
| CN2274089Y (en) * | 1996-12-18 | 1998-02-11 | 锡山市华庄化轻装备厂 | Air-chamber type tower plate |
| CN1506144A (en) * | 2002-12-11 | 2004-06-23 | �Ϻ���ͨ��ѧ | Super bubble-cap tower tray |
| CN2741631Y (en) * | 2004-11-16 | 2005-11-23 | 天津市创举科技有限公司 | Space mass transfer tower disc |
| CN103463828A (en) * | 2013-09-05 | 2013-12-25 | 中国海洋石油总公司 | Vertical film blowing tower plate |
-
2014
- 2014-11-25 CN CN201410683562.0A patent/CN104492113B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2250594A (en) * | 1990-11-20 | 1992-06-10 | Atomic Energy Authority Uk | A method of temperature measurement and apparatus therefor |
| CN2274089Y (en) * | 1996-12-18 | 1998-02-11 | 锡山市华庄化轻装备厂 | Air-chamber type tower plate |
| CN1506144A (en) * | 2002-12-11 | 2004-06-23 | �Ϻ���ͨ��ѧ | Super bubble-cap tower tray |
| CN2741631Y (en) * | 2004-11-16 | 2005-11-23 | 天津市创举科技有限公司 | Space mass transfer tower disc |
| CN103463828A (en) * | 2013-09-05 | 2013-12-25 | 中国海洋石油总公司 | Vertical film blowing tower plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016082664A1 (en) * | 2014-11-25 | 2016-06-02 | 南通苏通分离工程科技有限公司 | Curved cap hood tower plate |
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| CN104492113B (en) | 2016-03-23 |
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