CN1298404C - Subassembly between gas-liquid contacting and in use for knockout tower for mass transfer - Google Patents
Subassembly between gas-liquid contacting and in use for knockout tower for mass transfer Download PDFInfo
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- CN1298404C CN1298404C CNB2004100939336A CN200410093933A CN1298404C CN 1298404 C CN1298404 C CN 1298404C CN B2004100939336 A CNB2004100939336 A CN B2004100939336A CN 200410093933 A CN200410093933 A CN 200410093933A CN 1298404 C CN1298404 C CN 1298404C
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Abstract
The present invention relates to a gas-liquid contacting subassembly and a mass transfer knockout tower which uses the gas-liquid contacting subassembly. The gas-liquid contacting subassembly comprises a jet cover and a jet cover top plate arranged on the upper end of the jet cover, wherein the lower edge of the jet cover is connected with 3 to 4 supporting feet, the jet cover can be installed in the position of a tower plate rising air hole of the mass transfer knockout tower, and spacing exists between the bottom surface of the jet cover and a tower plate. Jet holes are uniformly distributed on the jet cover, and guide holes are uniformly distributed on the jet cover top plate. The gas-liquid contacting subassembly is characterized in that the jet cover forms a shape of a cylinder or a shape of a truncated cone, the jet cover top plate is rounded, the shape is matched with the jet cover, and a skylight is arranged between the jet cover and the jet cover top plate. The mass transfer knockout tower adopts the gas-liquid contacting subassembly of the present invention, and the gas-liquid contacting subassembly is uniformly distributed and installed on the tower plate in the knockout tower. Holes are arranged on four walls of the jet cover of the present invention, no blind zone exists, the opening ratio of the tower plate can be improved, the area of a gas passage can be enlarged, and the efficiency of the tower plate is improved.
Description
Technical field
The present invention relates to a kind of gas-liquid Continuous Contact knockout tower of mass transfer manufacturing technology, be specially the gas-liquid contact sub-assembly in the gas-liquid Continuous Contact knockout tower of mass transfer of widespread usage in a kind of mass transfer in fields such as oil, chemical industry, pharmacy, environmental protection, heat transfer, the humidification process and use its knockout tower of mass transfer technology, international Patent classificating number intends being Int.Cl
7.B01J19/00.
Background technology
Board-like knockout tower of mass transfer (hereinafter to be referred as plate column) is being widely used in the processes such as present mass transfer (proposing operation as rectifying, absorption, desorb, gas) in oil, chemical industry, pharmacy, environmental protection field, heat transfer, humidification.Plate column has polytype, as bubble column, sieve-plate tower, valve tower etc.Day, special public clear 46-31321 disclosed a kind of gas-liquid contact apparatus.This device mainly comprises top cover, has the sidewall and the horizontal column plate of a plurality of spray-holes; Between sidewall and the horizontal column plate slit is arranged, the air rising hole that has definite shape on the horizontal column plate is as the gas passage.Its operation principle is: when the gas at the bottom of the tower rises, produce contracted flow through the air rising hole on the column plate, the pressure of gas can partly be converted into its kinetic energy, and the static pressure of gas reduces simultaneously; Liquid on the horizontal column plate forms gas-liquid mixture with being contacted by the gas that rises below in described slit enters this gas-liquid contact apparatus (gas-liquid contact sub-assembly).In this process, carry out sufficient mass transfer, heat transfer between the gas-liquid two-phase, upwards the spray-hole on sidewall is spouting for gas-liquid mixture subsequently, after gas-liquid separation, gas continues upwards to enter the last layer column plate by air rising hole, big drop then falls back on this layer column plate, and flow to down one deck column plate through downspout with the liquid phase main body, finish gas-liquid contact exchange work.According to the diameter of knockout tower of mass transfer, this gas-liquid contact apparatus of some is installed in the knockout tower of mass transfer on the corresponding column plate in evenly distributed mode, constitutes the work package of knockout tower of mass transfer.Obviously, gas-liquid contact apparatus is the key component of plate column, and its shape, structure and arrangement set-up mode are directly related with the performance and the operating efficiency of knockout tower of mass transfer.
Chinese patent ZL92232700.9, ZL 93218445.6 have carried out different improvement to gas-liquid contact apparatus or sub-assembly respectively with ZL 99200122.6, have obtained different technique effects.But they all exist same defective: their shape, the jet cover of particularly square or rectangle, can not effectively utilize between its end plates, and their arrangement modes on separation tray have determined its inevitable entrainment, gas-liquid air-teturning mixed phenomenon that exists in various degree, the not high problem of the efficient of knockout tower of mass transfer, the separating effect that so just is difficult to increase substantially knockout tower with and disposal ability, influence the disposal ability of gas-liquid contact sub-assembly.In addition, with regard to the ejection-type knockout tower of mass transfer, they all exist another defective: promptly the jet tray spray-hole of adjacent two gas-liquid contact apparatus produces " to the spray phenomenon " in the knockout tower of mass transfer when work, causes energy loss, increase entrainment, influenced transmission efficiency.If for avoiding this " to spray ", need to strengthen the spacing of adjacent two gas-liquid contact apparatus of every row with every row, then must reduce the installation quantity of gas-liquid contact apparatus on column plate, also promptly reduce the quantity of key job assembly, mean the reduction of knockout tower of mass transfer usefulness.In addition, the existence of " to the spray phenomenon " also influence perforate quantity or the percent opening of spray-hole on jet tray or jet cover, and then also the operating efficiency of exchange is transmitted in influence.And on the other hand, exist " not having the spray phenomenon " between the end plates (generally not having spray-hole) for adjacent two gas-liquid contact apparatus in the knockout tower of mass transfer again, make that also the operating efficiency of gas-liquid contact apparatus is not high, and then influence the performance and the efficient of knockout tower of mass transfer.
Summary of the invention
At the deficiencies in the prior art, the technical problem to be solved in the present invention provides a kind of gas-liquid contact sub-assembly and uses its knockout tower of mass transfer.This gas-liquid contact sub-assembly can reduce entrainment effectively, improve open ratio of plate, the column plate area is fully used, effectively reduce gas-liquid back-mixing on every layer of column plate of knockout tower, reduce gradient of liquid level on every layer of column plate of knockout tower, further improve its disposal ability, reduce resistance, improve plate efficiency, adopt the knockout tower of mass transfer of gas-liquid contact sub-assembly of the present invention to design more science thereby make, performance and efficient are higher.
The determine technical scheme of described gas-liquid contact sub-assembly technical problem of quasi-solution of the present invention is: design a kind of gas-liquid contact sub-assembly, the jet cover top board that comprises jet cover and upper end thereof, the jet cover lower limb is uniform to be connected with 3-4 leg, can be installed in jet cover the position of air rising hole on the column plate of knockout tower of mass transfer by leg, and make between the bottom surface of jet cover and the column plate and leave spacing; The uniform spray-hole that has on the described jet cover, the uniform pilot hole that has on the described jet cover top board is characterized in that at described jet cover be cylindrical or truncated cone-shaped, described jet cover top board be shaped as circle with jet cover coupling; And between described jet cover and jet cover top board, have the skylight.
The determine technical scheme of described knockout tower of mass transfer technical problem of quasi-solution of the present invention is: design a kind of gas-liquid contact mass transfer knockout tower, this knockout tower of mass transfer adopts gas-liquid contact sub-assembly of the present invention, and with on its uniform column plate that is mounted in the knockout tower of mass transfer.
The further technical scheme of this knockout tower of mass transfer is that gas-liquid contact sub-assembly of the present invention is designed to two kinds of different height, and on the spaced apart respectively column plate that is mounted in the knockout tower of mass transfer at least one orientation in horizontal, vertical two orientations of these two kinds of differing heights, and the spray-hole of two adjacent gas-liquid contact sub-assemblies in height is on the different horizontal planes.
Test to knockout tower of mass transfer of the present invention shows, owing to adopted the gas-liquid contact sub-assembly of the present invention's design and the gas-liquid of particular design to contact the sub-assembly arrangement mode, when the void tower kinetic energy factor reaches 3.7, still there are not tangible entrainment and gas-liquid air-teturning mixed phenomenon in the knockout tower of mass transfer, thereby improved gas-liquid contact sub-assembly and then knockout tower of mass transfer disposal ability and operating flexibility greatly, also improved its mass transfer, heat transfer efficiency simultaneously.
Experimental test also shows, adopt gas-liquid sub-assembly of the present invention, make the gas phase mist entrainment of column plate significantly reduce, (patent ZL92232700.9, ZL93218445.6 and ZL 99200122. are the improvement of vertical sieve tray more than 60～90% in comparable vertical sieve tray minimizing, the performance of its performance and vertical sieve tray is approaching, so locate only to compare with everybody data of normally used vertical sieve tray.Down together); As being the plate column of the upper limit with the excessive entrainment of gas phase, adopt this technology can improve the operation upper limit of column plate, thereby can improve disposal ability, also make operating flexibility improve 30%～40% simultaneously than vertical sieve tray.
Adopt the mode of the gas-liquid contact sub-assembly interphase distribution of height of the present invention, short two kinds of differing heights, can make that drop greatly reduces the throw degree between original adjacent jet cover, can make again simultaneously with the spacing between row's jet cover and dwindle (on the basis that does not influence other performance), the spacing of every row's jet cover also can be dwindled, can improve the percent opening on the plate so greatly, the column plate area is fully used.Gas-liquid contact sub-assembly of the present invention adopts cylindrical or the truncated cone-shaped design, there be not " blind area " in its evenly perforate of jet cover wall, has therefore both improved the percent opening on the column plate, strengthened gas passage area, be fully used in jet cover space all around.Experimental test shows that percent opening of the present invention improves 20%～40% than vertical sieve tray, and disposal ability improves 50%～90% than vertical sieve tray.
Gas-liquid of the present invention contact sub-assembly and combination thereof technology is set because obviously reduced air-teturning mixed phenomenon, to the spray phenomenon with there is not the spray phenomenon, improved the liquid lifting capacity in the cover, make the aggravation of gas-liquid contact-impact, help mixing, the outer guiding of cover flap again can be effectively with the gas-liquid mixture that ejects as much as possible " interception " get off, thereby can improve mass transfer, the heat transfer efficiency of column plate effectively.
The gas-liquid of the present invention contact sub-assembly and the technology that is provided with thereof change sprays the layout type of cover body on column plate, can reduce jet cover to the taking of flow channel for liquids on the plate, thereby reduces the flow resistance of liquid.
Gas-liquid contact sub-assembly of the present invention has compared with prior art only changed the whole in other words conj.or perhaps planform of cross sectional shape of gas-liquid contact sub-assembly, has increased skylight and top board deflector apron, and is therefore simple in structure, is easy to make and practical application.
Description of drawings
Fig. 1 is the schematic diagram of a kind of cylindrical embodiment of gas-liquid contact sub-assembly of the present invention;
Fig. 2 is the schematic diagram of the another kind of truncated cone-shaped embodiment of gas-liquid contact sub-assembly of the present invention;
Fig. 3 has the shape and structure schematic diagram of the cylindrical embodiment of downward bending deflector apron 7 and square fish scale spray-hole 13 for gas-liquid contact sub-assembly of the present invention design;
Fig. 4 has the schematic top plan view of the cylindrical embodiment of downward bending deflector apron 7 and semicircle fish scale pilot hole 14 for gas-liquid contact sub-assembly of the present invention design;
Fig. 5 has the schematic top plan view of the cylindrical embodiment of downward bending deflector apron 7 and square fish scale pilot hole 14 for gas-liquid contact sub-assembly of the present invention design;
Fig. 6 is arrange on the column plate vertical section structure schematic diagram of a kind of embodiment of method to set up of gas-liquid of the present invention contact sub-assembly in knockout tower of mass transfer;
Fig. 7 is arrange on the column plate plan view shape structural representation of a kind of embodiment of method to set up of gas-liquid of the present invention contact sub-assembly in reaction tower.
The specific embodiment
Further narrate the present invention below in conjunction with embodiment and accompanying drawing thereof:
The present invention is a kind of gas-liquid contact sub-assembly (referring to Fig. 1-7), the jet cover top board 3 that comprises jet cover 2 and upper end thereof, jet cover 2 lower limbs are uniform to be connected with 3-4 leg 12, can be installed in jet cover 2 position of air rising hole 1 on the column plate 4 of knockout tower of mass transfer by leg 12, and make between the bottom surface of jet cover 2 and the column plate 4 and leave fluid course; The uniform spray-hole 13 that has on the described jet cover 2, the uniform pilot hole 14 that has on the described jet cover top board 3 is characterized in that being cylindrical or truncated cone-shaped at described jet cover 2, described jet cover top board 3 be shaped as circle with jet cover 2 couplings; And between described jet cover 2 and jet cover top board 3, have skylight 11.The shape and structure of described spray-hole 13 and pilot hole 14 is not limited.Square fish scale hole shown in Fig. 1-5 or semicircle fish scale hole only are its several shape and structures that are suitable for.The spray-hole of prior art also can be adapted to gas-liquid of the present invention with the pilot hole shape and structure and contact sub-assembly, no matter whether its title is identical.
The diameter that gas-liquid of the present invention contact sub-assembly is further characterized in that described circular jet cover top board 3 is greater than described circular jet cover 2 diameter 15～35mm suitable for reading, and sentences bending formation deflector apron 7 (referring to Fig. 3) under the γ angle in institute greater than the 1/4-1/2 of part.Described downward bending γ angle is 0～90 °.When angle γ is 90 °, mean deflector apron 7 vertically downward; And when angle γ is 0 °, mean not bending of deflector apron 7, be a flat board.The specific design of angle γ can be different and change to some extent according to the character (as density, viscosity etc.) of spent material.Generally speaking, angle γ preferable range is 30～60 °.The design of deflector apron 7 can make from the skylight 3 liquid phases that eject as much as possible " interception " get off, reduce the gas-liquid back-mixing.
The further feature of gas-liquid of the present invention contact sub-assembly is, the whole height of gas-liquid contact sub-assembly is designed to two kinds, and its difference in height can generally be selected between 45～90mm according to the change of properties of actual condition and working media.Except that height, the shape and structure of two kinds of gas-liquid contact sub-assemblies is as broad as long.This design of differing heights gas-liquid contact sub-assembly is not the needs of itself, but in order to improve cooperation efficient, reduces describedly to spraying phenomenon, and it is installed in special design in the knockout tower of mass transfer.
The present invention has further designed the method to set up of described gas-liquid contact sub-assembly in knockout tower of mass transfer (referring to Fig. 6,7), it is characterized in that earlier described gas-liquid contact sub-assembly being designed to two kinds of different height, again the gas-liquid of described two kinds of differing heights is contacted sub-assembly at horizontal stroke, spaced apart respectively being mounted on the interior column plate 4 of knockout tower of mass transfer at least one orientation in vertical two orientations, and to make the spray-hole 13 of two adjacent gas-liquid contact sub-assemblies in height not be on the same horizontal plane, correspondence has air rising hole 1 below each described gas-liquid contact sub-assembly of column plate 4 then, and leaves fluid course between described gas-liquid contact sub-assembly end opening and column plate 4.Described here is designed to two kinds of different height to gas-liquid contact sub-assembly, mainly be meant sustained height at the gas-liquid contact sub-assembly of prior art, it is constant to be that a kind of height of newly-designed gas-liquid contact sub-assembly can be kept original height, and another kind highly then can reduce.This design can make the inventive method be used for the maintenance and the transformation of existing knockout tower of mass transfer simply and easily.But do not get rid of all designs newly of two kinds of differing heights of gas-liquid contact sub-assembly, this new design is applicable to the whole new design of knockout tower of mass transfer.
Of the present invention on the spaced apart respectively column plate 4 that is mounted in the knockout tower of mass transfer at least one orientation in horizontal, vertical two orientations of the gas-liquid of two kinds of differing heights contact sub-assembly, should comprise: 1. on row direction, the gas-liquid of described two kinds of differing heights contact sub-assembly 2 respectively or on the two two spaced apart column plates 4 that are mounted in the knockout tower of mass transfer; 2. on the file direction, the gas-liquid of described two kinds of differing heights contact sub-assembly 2 respectively or on the two two spaced apart column plates 4 that are mounted in the knockout tower of mass transfer; 3. on horizontally-arranged and file both direction, on all spaced apart one by one respectively column plate 4 that is mounted in the knockout tower of mass transfer of the gas-liquid of described two kinds of differing heights contact sub-assembly; Also comprise 4. on two adjacent horizontally-arrangeds, the gas-liquid of described two kinds of differing heights contact sub-assembly is misplaced respectively arrange on the column plate 4 that is mounted in the knockout tower of mass transfer (referring to Fig. 6,7).
In order to ensure reducing and even avoiding described to the spray phenomenon, except designing the gas-liquid contact sub-assembly of two kinds of differing heights, and beyond the installation method to set up arrangement according to said gas-liquid contact sub-assembly, when the inventive method also requires to install gas-liquid contact sub-assembly, the spray-hole 13 of two adjacent gas-liquid contact sub-assemblies in height is on the different horizontal planes, both are not on the same horizontal plane in other words, otherwise meaningless or have little significance.This means that not only new design is relevant with the installation method to set up of gas-liquid contact sub-assembly, also means relevant with the height design of described gas-liquid contact sub-assembly.The further feature of the inventive method is that the difference in height of described two kinds of gas-liquids contact sub-assembly can generally be selected between 45～90mm according to the change of properties of actual condition and working media.In this scope, during design, preferably the spray-hole 13 of gas-liquid contact sub-assembly aim at its centre of two spray-holes 13 of the most close these spray-hole 13 horizontal planes on the adjacent gas-liquid contact sub-assembly, issuable to spray when avoiding that spray-hole is in same horizontal plane between the adjacent gas-liquid contact sub-assembly.
Behind the arrangement mode of selecting or design described two kinds of gas-liquids contact sub-assembly, also the end opening or the bottom surface correspondence of the described gas-liquid contact sub-assembly that need locate in each of column plate 4 have air rising hole 1, and leave fluid course between the end opening of described gas-liquid contact sub-assembly or bottom surface and column plate 4.The size of fluid course is relevant with the purposes of knockout tower of mass transfer.This also illustrates, when utilizing the inventive method that existing knockout tower of mass transfer is carried out the technology upgrading transformation, not only will change described gas-liquid contact sub-assembly, and column plate 4 may need also to change simultaneously.
In a word, jet cover 2 is designed to circle in the present invention or truncated cone-shaped can make that liquid sprays in all directions, has strengthened working space, thereby makes the more abundant of gas, liquid mixing, has improved mass-transfer efficiency; Simultaneously, on jet cover, designed deflector apron 7, and adopt height spatial arrangement mode straggly effectively to improve or reduce because back-mixing and entrainment phenomenon that spray is produced, thereby when improving mass-transfer efficiency, can also increase substantially the disposal ability of knockout tower of mass transfer; The design in skylight 11 simultaneously can further promote the disposal ability of knockout tower of mass transfer.
The present invention relatively is suitable for using in the middle-size and small-size knockout tower of mass transfer of diameter phi below 1200, because jet cover 2 bodies of circle or truncated cone-shaped design are little, that can arrange in middle-size and small-size knockout tower of mass transfer easily is more, helps improving the utilization rate of column plate.
Operation principle of the present invention and process following (referring to Fig. 6): horizontal column plate 4 of several layers and supporting with it downspout 6 and downflow weir 9 are installed in tower body 10; Have on every layer of column plate 4 with liquid and flow the vertical plurality of rows air rising hole 1 of 8 directions, on the position corresponding, jet cover 2 is installed, and every row's jet cover 2 is adopted as the alternate mounting means of arranging straggly of height with air rising hole 1.Liquid phase 8 flows into this layer column plate 4 from the downspout 6 of last layer column plate 4, and every row's jet cover 2 of flowing through flows to down on one deck column plate 4 through downspout 6 again; Gas phase 5 enters in the jet cover 2 of this layer column plate 4 by air rising hole 1 from the below of column plate 4.In gas phase 5 enters jet cover 2 and when rising, liquid phase 8 enters from the fluid course of jet cover 2 bottom surfaces, and gas-liquid two-phase acutely mixes contact in jet cover 2.Liquid phase 8 is broken into the drop that varies in size in a large number by gas phase 5 in the process of contact, and after this gas-liquid mixture is spouting from the sidewall spray-hole 13 and the pilot hole 14 on bar shaped skylight 11 and the top board 3 of jet cover 2.At first beat on described deflector apron 7 by the gas-liquid mixture that eject in skylight 11, in like manner, the gas-liquid mixture that is ejected by the pilot hole on the top board 3 14 also can be stopped because of the fish scale shape of pilot hole 14, in this process, drop continues to be broken, after mixed, opening direction along deflector apron 7 or fish scale pilot hole 14 is spouting, last gas phase 5 and the drop place, space between jet cover 2 and column plate 4 is through the collision cohesion, drop captures, processes such as cowl top panel 3 captures and gas phase 5 are in the curve baffling rising centrifugation of 2 of jet covers, drop can fall back in the liquid layer 8 on the column plate 4, flows to down on one deck column plate 4 by downspout 6 subsequently.Gas-liquid two-phase is finished processes such as mass transfer, heat transfer in this contact process.
The gas-liquid contact sub-assembly and the method to set up in knockout tower of mass transfer thereof of the present invention's design, owing to obviously reduce even avoid existing in prior technology " to spray " and back-mixing, thereby on the basis that does not influence the original performance of knockout tower of mass transfer, can make with the spacing between the adjacent gas-liquid contact sub-assembly of row and dwindle, the spacing of every exhaust liquid contact sub-assembly also can be dwindled, can improve percent opening on jet tray or the jet cover so effectively, significantly improve the disposal ability of knockout tower of mass transfer, and reduce entrainment effectively, improve column plate utilization ratio and operating flexibility; Simultaneously owing to decrease, thereby saved the use material of producing sub-assembly, reduced manufacturing cost with respect to the height of the gas-liquid contact sub-assembly of prior art; In addition, with regard to the inventive method, mainly be the adjustment of gas-liquid contact sub-assembly method to set up in the knockout tower of mass transfer or rearrange, thereby method is simple, is easy to promotion and implementation, has remarkable economic efficiency.
Provide the concrete Application Example of the technology of the present invention below:
Embodiment 1:
The low rectifying column (former tower diameter is Φ 600mm) that boils of VCM adopts F1 type valve plate, and the number of plates is 38, and column plate is the single overflow type, and the downspout cross section is arc, the long 456mm of downflow weir, and distance between plates 300mm.Its production capacity is 3.0 ten thousand tons of PVC/, contains C in the product vinyl chloride
2H
2Amount≤10～20ppm.Once should hang down the tower (only change column plate, other is all constant as tower diameter, the number of plates, distance between plates etc.) that boil with the vertical sieve plate column transformation, production capacity is increased to 5.5 ten thousand tons of PVC/ as a result, contains C in the product vinyl chloride
2H
2Amount reduces to 0 (instrument detecting is not come out, down with), and the column plate resistance drop is to original about 60%.Adopt gas-liquid contact sub-assembly of the present invention and installation method transformation another low tower that boils with the transformed same model of vertical sieve tray, tower diameter is constant, the diameter design of circular jet cover top board 3 is greater than described circular jet cover 2 diameter 20mm suitable for reading, and sentence γ=45 greater than 1/4 of part and bend downwards and constitute deflector apron 7, the number of plates is reduced to 32, the difference in height of two kinds of gas-liquid contact sub-assemblies is 55mm, contains C in the product vinyl chloride
2H
2Amount is 0, and production capacity can be increased to 8.5 ten thousand tons of PVC/, and the column plate resistance reduces about 30% again than the transformed low tower that boils of vertical sieve tray, and operating flexibility then reaches more than 4.5.
Embodiment 2:
Certain PVC monomer height rectifying column that boils, tower diameter Φ 1400.Adopt F1 type valve plate, the number of plates is 40, and wherein rectifying section is 24, and stripping section is 16, and tray spacing is respectively 300mm and 350mm, and column plate is the single overflow type, chord downcomer, and former designed productive capacity is the monomer of 7.5 ten thousand TPVC/.Require to contain high-boiling components (dichloroethylene etc.)≤80～100ppm in the finished product monomer.The operation operation shows can not reach above-mentioned requirements.Adopt the vertical sieve tray tower technology to design again, new tower diameter is φ 1000, and the number of plates is identical with the valve tower design.Show after the operation that production capacity can reach the monomer of 9.0 ten thousand TPVC/.And high-boiling components content is reduced to 5～8ppm in the finished product monomer.Show that disposal ability greatly increases (if convert with same tower diameter, then disposal ability improves more than 1.2 times on year-on-year basis), and the finished product monomer mass improves greatly.Further adopt the technology of the present invention to carry out new tower design, tower diameter is designed to the φ 900 (numbers of plates, parameters such as distance between plates are all constant), the diameter design of circular jet cover top board 3 is greater than described circular jet cover 2 diameter 35mm suitable for reading, and bend downwards greater than 1/3 place of part and constitute deflector apron 7, top board bending angle γ is 60 °, the difference in height of two kinds of gas-liquid contact sub-assemblies is 70mm, production run shows, production capacity can reach more than the 12.5 ten thousand TPVC/ monomers, and high-boiling components content≤3～5ppm in the finished product monomer compares with vertical sieve plate column, and the technology of the present invention makes production capacity improve about 70% again.
Claims (5)
1. a gas-liquid contacts sub-assembly, the jet cover top board (3) that comprises jet cover (2) and upper end thereof, uniform 3-4 the leg (12) that be connected with of jet cover (2) lower limb, can go up the position of air rising hole (1) to the column plate (4) that jet cover (2) be installed in knockout tower of mass transfer by leg (12), and make between the bottom surface of jet cover (2) and the column plate (4) and leave fluid course; Described jet cover (2) is gone up the uniform spray-hole (13) that has, described jet cover top board (3) is gone up the uniform pilot hole (14) that has, described jet cover (2) is cylindrical or truncated cone-shaped, described jet cover top board (3) be shaped as circle with jet cover (2) coupling; And between described jet cover (2) and jet cover top board (3), have skylight (11); The diameter that it is characterized in that described circular jet cover top board (3) is greater than described circular jet cover (2) diameter 15～35mm suitable for reading, and sentence greater than the 1/4-1/2 of part that bending constitutes deflector apron (7) under the γ angle, described γ angle is 0～90 °.
2. gas-liquid contact sub-assembly according to claim 1 is characterized in that described γ angular region is 30～60 °.
3. gas-liquid contact sub-assembly according to claim 1 and 2 is characterized in that the whole height of described gas-liquid contact sub-assembly is designed to two kinds, and its difference in height is 45～90mm.
4. a knockout tower of mass transfer that adopts claim 1 or 2 described gas-liquid contact sub-assemblies is characterized in that on the uniform column plate (4) that is mounted in the knockout tower of mass transfer of described gas-liquid contact sub-assembly.
5. knockout tower of mass transfer that adopts the described gas-liquid of claim 3 contact sub-assembly, it is characterized in that on the spaced apart respectively column plate (4) that is mounted in the knockout tower of mass transfer of the gas-liquid of described two kinds of differing heights contact sub-assembly, and the spray-hole (13) of two adjacent gas-liquid contact sub-assemblies in height is on the different horizontal planes.
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| CNB2004100939336A CN1298404C (en) | 2004-12-14 | 2004-12-14 | Subassembly between gas-liquid contacting and in use for knockout tower for mass transfer |
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| CNB2004100939336A CN1298404C (en) | 2004-12-14 | 2004-12-14 | Subassembly between gas-liquid contacting and in use for knockout tower for mass transfer |
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| CN1660463A CN1660463A (en) | 2005-08-31 |
| CN1298404C true CN1298404C (en) | 2007-02-07 |
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| CN2475447Y (en) * | 2001-04-26 | 2002-02-06 | 河北工业大学 | Guide spray column plate |
| CN2751858Y (en) * | 2004-12-14 | 2006-01-18 | 河北工业大学 | Gas-liquid contact assembly |
-
2004
- 2004-12-14 CN CNB2004100939336A patent/CN1298404C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3633882A (en) * | 1968-10-08 | 1972-01-11 | Mitsui Shipbuilding Eng | Vapor-liquid contacting apparatus |
| US5185017A (en) * | 1991-04-15 | 1993-02-09 | Mitsui Engineering & Shipbuilding Co., Ltd. | Gas-liquid contact apparatus |
| CN2367366Y (en) * | 1999-01-06 | 2000-03-08 | 河北工业大学总厂 | Radial side-guiding spray tower plate |
| CN2475447Y (en) * | 2001-04-26 | 2002-02-06 | 河北工业大学 | Guide spray column plate |
| CN2751858Y (en) * | 2004-12-14 | 2006-01-18 | 河北工业大学 | Gas-liquid contact assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1660463A (en) | 2005-08-31 |
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