CN104383709A - Low-resistance efficient column tray - Google Patents
Low-resistance efficient column tray Download PDFInfo
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- CN104383709A CN104383709A CN201410707312.6A CN201410707312A CN104383709A CN 104383709 A CN104383709 A CN 104383709A CN 201410707312 A CN201410707312 A CN 201410707312A CN 104383709 A CN104383709 A CN 104383709A
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Abstract
The invention provides a low-resistance efficient column tray. Cover hoods are welded on column plates; outer layer liquid blocking sieve plates with sieve holes are arranged at the peripheries of the outer parts of the side walls of the cover hoods above the column plates for secondary gas-liquid dispersion mass transfer; a row of small liquid distribution holes are formed in the side surfaces of the cover hoods, close to the column plates; a liquid collecting groove is formed above the cover hoods; the cover hoods protrude out of the plane of the column plates by a certain height so as to prevent solid substances from blocking the cover hoods and the sieve holes; an oblique plate is arranged at the part corresponding to the small liquid distribution holes in each cover hood; a narrow gap is formed between the oblique plate and the side walls of the cover hoods for distributing a liquid; a plurality of sieve holes are also formed in the side walls of the cover hoods at the lower parts of the column plates; meanwhile, an inner layer liquid blocking sieve plate is arranged in the side wall of the cover hood below the column plates for secondary gas-liquid dispersion mass transfer; a plurality of liquid exhaust holes are formed in the bottom of the cover hoods for liquid distribution and dropping, and meanwhile play a role of liquid sealing. The low-resistance efficient column tray has the advantages that the gas flow resistance is low; the gas-liquid contact effect is good; the antiblocking effect is good; the column plate efficiency is high; the manufacture and running costs are low; the column tray is convenient to overhaul.
Description
Technical field
The invention relates to gas-liquid heat-transfer, the mass transfer in Chemical Engineering, equipment of giving a dinner of welcome, and is specially a kind of chemical industry mass transfer, washs separatory lower resistance high-efficient tower plate.
Background technology
Gas-liquid mass transfer internals are divided into plate column and the large class of packed tower two, and the resistance of plate column is generally the 8-10 of packed tower resistance doubly, so require less field in tower resistance drop of will demanding perfection, can only adopt packed tower internals.The advantage of packed tower internals is that gas flow resistance is little, mass-transfer efficiency is high, when defect is that fluid flow is less, being uniformly distributed of liquid is comparatively difficult, often because filler is not wetting, gas-liquid cannot force contact mass transfer, declines obviously for cleaning dust power efficiency, and the problem such as the bias current of filler, wall stream, channel, back-mixing all can limit the performance of packing efficiency.In addition, due to feed product nature difference, when processing the material of some easy fouling, tower internals are after operation a period of time, just there will be filler in packed column and internals blocking, mass-transfer zone resistance drop increases, abnormal situations such as entrainment liquid flooding, separating effect variation, thus adopt plate column during most design selection, in plate column, the good column plate of anti-clogging has slant-hole tray, solid valve column plate, stereo jet tray, New Vertical Sieve Tray, film spray no-back mixing tower tray etc.Inclined hole, solid valve column plate, stereo jet tray etc. utilize the perforate of fixed dimension and shape to ensure the flow channel of gas, can cycle of to a certain degree extension device operation, but the resistance of every layer of column plate is larger.So need to develop that a kind of efficiency is high, resistance drop is little, anti-clogging, be suitable for again the column plate of more large discharge range operation.
Column plate is used widely in chemical separating operation as important mass transfer apparatus element.Most of column plates such as float valve, sieve plate, bubble-cap generally adopt cross-current configuration, and liquid is horizontal cross flowing on column plate, and according to the size of flow quantity, arranges single, double, multi-overflow mode.The drawback of this liquid flowing mode is that gradient of liquid level is larger, cause distribution of gas uneven, simultaneously because liquid flow on column plate is the flowing of class covering of the fan, remain in a standstill and Biased flow phenomenon commonplace, such liquid flowing mode easily forms back-mixing, plate efficiency will be weakened, and the pattern changing gas liquid cross-flow is one of approach of structure innovation, becomes the important directions of engineers and technicians' research.
In order to guarantee liquid flow of trying one's best is even and gas-liquid contact effect, board-like height of liquid layer is usually at 30-70mm, and the liquid layer thickness positive correlation of wet plate resistance directly and on column plate is the difficult problem that the structure of current plate column cannot overcome.Liquid isotype falls in gas and liquid flowing or percolation can to a certain degree reduce column plate resistance drop, and liquid from up to down flows into liquid film, is one of means of Technology design, is paid attention to by insider.
Take vertical sieve tray as the column plate of representative, with Venturi effect and gas and liquid flowing for design concept, the calotte inside of gas-liquid above plate hole forms negative pressuren zone, and liquid, by air-flow inhalation mask, also flows to upper injection after gas-liquid mixed, after impacting top blind flange, dynamic pressure changes into static energy, vertical sieve tray calotte side opening sieve aperture, and gas-liquid mixture is spouting from sieve aperture, form a large amount of drops, complete gas-liquid mass transfer heat transfer.The defect of this structure is: first, Liquid Flow pattern is still cross-current flow, plate efficiency promotes the restriction that suffers restraints, secondly, gas liquid operated transmits co-current process, and the energy loss of gas is comparatively large, and the resistance of every layer of column plate is larger, general at 400-600Pa, this type of column plate comprises New-Vst New Vertical Sieve Tray, CTST combined trapezoid spray tray, CJST radial side guiding jet column tray, JCPT column plate etc.
In sum, improve plate efficiency, significantly reduce individual layer column plate resistance, realize fluid flow and descend the uniform contact of gas-liquid in a big way, solve column plate and hold susceptible to plugging problem, realize the target of its long period, Effec-tive Function, can conveniently overhaul again simultaneously, with low cost, become the direction of column plate exploitation and strategic structural.
Summary of the invention
The problem that the invention will solve is to provide a kind of chemical industry mass transfer, washs separatory lower resistance high-efficient tower plate.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is:
A kind of lower resistance high-efficient tower plate, comprise column plate and some calottes, described calotte passes column plate and welds with column plate, and the part that described calotte protrudes upward column plate plane is upper calotte, the part of stretching out column plate plane is downwards lower calotte, described upper calotte and lower calotte one-body molded; Described calotte top is provided with collecting tank, and bottom is provided with and falls liquid structure, and the middle part of described upper calotte and described lower calotte all has some row's sieve apertures; Described upper calotte and described column plate junction circumference have an arrangement liquid aperture.
Preferably, position circumference corresponding with described cloth liquid aperture inside described cap side walls is provided with secondary liquid distribution plate, and described secondary liquid distribution plate is concentric and and leave space between cap side walls with described calotte.
Preferably, described calotte is the tubular structure of both ends open, and the periphery of described upper calotte is provided with concentric skin gear liquid sieve plate, described skin gear liquid sieve plate becomes a cavity body structure with the sidewall weld of described upper calotte, and the bottom of described cavity body structure is higher than the height of described cloth liquid aperture, the bottom of described cavity body structure is provided with some sieve apertures, and the sidewall of described skin gear liquid sieve plate also has some row's sieve apertures.
Preferably, described calotte is the tubular structure of both ends open, and described lower calotte inner ring is provided with internal layer gear liquid sieve plate, described internal layer gear liquid sieve plate with described calotte concentric and and leave space between described lower cap side walls, described secondary liquid distribution plate keeps off between liquid sieve plate to the distance at described calotte center between described cap side walls and described internal layer, and the middle part of described internal layer gear liquid sieve plate has some row's sieve apertures.
Preferred, the Upper vertical of described secondary liquid distribution plate is welded on the inner side of described cap side walls, and bottom bends to described cap side walls, and bending angle is 0 ~ 45 °.
The overall big up and small down type structure of described collecting tank, and its open top end bottom end closure, collecting tank bottom embeds in described calotte, and the sidewall in the middle part of collecting tank welds mutually with described cap side walls; The sidewall of described collecting tank bottom has some spray apertures or has overfall.
Preferably, described collecting tank is made up of mutually through upper, middle and lower three part, the cross section on collecting tank top is the isosceles trapezoid of standing upside down, cross section in the middle part of collecting tank is rectangle, the cross section of collecting tank bottom is similarly the isosceles trapezoid of handstand, and the identical length etc. on the long limit of the length of side of rectangle in the middle part of the length of the isosceles trapezoid minor face on described collecting tank top and described collecting tank and the isosceles trapezoid of described collecting tank bottom, and this length is equal to the hydraulic diameter of described calotte.
Describedly fall the cell body that liquid structure is up big and down small type, and the maximum gauge of described cell body upper end is corresponding with the diameter of described calotte, the sidewall upper of described cell body is welded with the bottom side wall seamless of described calotte, and the base plate of described cell body has some liquid reducing holes.
Described the cell body that liquid structure is up big and down small type falls, and the diameter on the top of described cell body is greater than the diameter of described calotte, described cell body to be welded in described cap side walls by plate muscle and described cell body is arranged with described calotte is concentric, leaves gap between the sidewall of described cell body and described cap side walls.
Described calotte stretches out column plate plane 100mm-250mm up or down; Described cloth liquid aperture is positioned at distance column plate 5-50mm place in described cap side walls, and its opening diameter is 2-10mm, and perforate spacing is 3-30mm.
The arrangement of described sieve aperture is in staggered, parallel or arranged side by side mode, and its aperture is 3-30mm, and perforate spacing is 6-25mm; The shape of described liquid reducing hole, spray apertures or sieve aperture is circle, bar shaped or polygon; Described calotte is cuboid, cylinder, tri-prismoid or multiedge cylinder.
The advantage that the invention has and good effect are: every layer of column plate resistance of the invention is all lower than prior art, owing to adopting this device, make liquid self cloth film, gas is dry plate resistance through the resistance of four layers of gear liquid sieve plate substantially, can by tower pressure-controlled between 200Pa-300Pa by improving percent opening, operation lower limit does not limit by leakage, and a liquid body distributing homogeneity controls; The not liquid body flow restriction of the operation upper limit, only limit by entrainment under high gas velocity, operating flexibility is larger; Heat and mass transfer efficiency can be improved, improve separating effect.Column plate plane 100mm-250mm given prominence to by the calotte in the invention, column plate arranged, can prevent solid matter from blocking calotte and sieve aperture, and then can effectively prevent column plate from blocking, bottom calotte, open some outages, both can play the uniform effect of liquid, and also can prevent liquid from stockpiling; Compared with prior art, the advantage of the invention is that gas flow resistance is low, gas-liquid contact is effective, without enlarge-effect, anti-stifled effective, plate efficiency is high, manufacture and operating cost low, maintenance is convenient.
Simultaneously, this device can also be placed on above packing section, collecting tank on column plate and tower plate surface can play the effect of collecting liquid, the liquid structure of falling of column plate bottom plays the effect that distributes again of liquid, simultaneously can also as the parts of gas-liquid mass transfer, the efficiency of the filler not only improved, and be convenient to carry out Promotion Transformation to old tower, make full use of space in tower.
Accompanying drawing explanation
Fig. 1 is the front view of the embodiment 1 of the lower resistance high-efficient tower plate of the invention;
Fig. 2 is the left view of the embodiment 1 of the lower resistance high-efficient tower plate of the invention;
Fig. 3 is the sectional view of lower resistance high-efficient tower plate Fig. 2 of the invention;
Fig. 4 is the partial enlarged drawing at column plate place in lower resistance high-efficient tower plate Fig. 3 of the invention;
Fig. 5 is the top view of the embodiment 1 of the lower resistance high-efficient tower plate of the invention;
Fig. 6 is the upward view of the embodiment 1 of the lower resistance high-efficient tower plate of the invention;
Fig. 7 is the perspective view of the lower resistance high-efficient tower plate of the invention;
Fig. 8 is the using state schematic diagram of the lower resistance high-efficient tower plate of the invention;
Fig. 9 is the left view of the embodiment 2 of the lower resistance high-efficient tower plate of the invention;
Figure 10 is the sectional view of lower resistance high-efficient tower plate Fig. 9 of the invention;
Figure 11 is the sectional view of the embodiment 3 of the lower resistance high-efficient tower plate of the invention;
Figure 12 is the lower resistance high-efficient tower plate gas-liquid mass transfer schematic diagram in actual applications of the invention;
Figure 13 is the front view of the embodiment 4 of the lower resistance high-efficient tower plate of the invention;
Figure 14 is the left view of the embodiment 4 of the lower resistance high-efficient tower plate of the invention;
Figure 15 is the perspective view of the embodiment 4 of the lower resistance high-efficient tower plate of the invention;
Figure 16 is the using state schematic diagram of the embodiment 4 of the lower resistance high-efficient tower plate of the invention.
In figure:
1, column plate 2, cloth liquid aperture 3, sieve aperture 4, collecting tank
5, the liquid flow flowing direction, direction of the liquid 41 on the gas 14 in liquid structure 6, calotte 7, outer gear liquid sieve plate 8, internal layer gear liquid sieve plate 9, secondary liquid distribution plate 10, liquid reducing hole 11, column plate top sieve aperture 12, the gas flow direction 13 at gas flow direction place at sieve aperture place, column plate bottom, calotte, cap side walls portion 15, column plate, body flow direction position, collecting tank top falls
42, in the middle part of collecting tank 43, collecting tank bottom 44, spray apertures
Detailed description of the invention
Embodiment 1
A kind of lower resistance high-efficient tower plate as shown in figs. 1-7, comprise column plate 1 and some through column plate 1 and the calotte 6 weld with column plate 1 (and this calotte 6 gives prominence to column plate 1 plane 100mm-250mm up or down, concrete height is according to the design of tower body actual height), this calotte 6 top is provided with collecting tank 4, bottom is provided with and falls liquid structure 5, the middle part of the part calotte being positioned at column plate 1 upper end and the part calotte being positioned at column plate 1 lower end is all staggered has some row's sieve apertures 3, the periphery being positioned at the upper calotte of column plate upper end is provided with concentric skin gear liquid sieve plate 7, outer gear liquid sieve plate 7 is welded into a cavity structure with cap side walls, and the bottom of this cavity structure has some sieve apertures 3, for the liquid drain that will drop in this cavity to column plate, the sidewall of outer gear liquid sieve plate 7 also has some row's sieve apertures 3, on the sidewall of the part calotte between this cavity structure and column plate 1, (about distance column plate 5mm place) offers an arrangement liquid aperture 2 (namely in the cap side walls of this cloth liquid aperture 2 between cavity structure and column plate 1), its opening diameter is 2mm, perforate spacing is 5mm, this cloth liquid aperture 2 can by the downward water conservancy diversion of liquid on the liquid that flows out in cavity structure and column plate 1, the calotte 6 inside sidewalls position circumference corresponding with this arrangement liquid aperture 2 is provided with secondary liquid distribution plate 9, this secondary liquid distribution plate 9 with calotte 6 concentric and and leave certain space between cap side walls, on this secondary liquid distribution plate 9, to carry out quadratic distribution to ensure that the liquid flowed out by cloth liquid aperture 2 is beaten (it is vertical that the design of this secondary liquid distribution plate 9 becomes the first half, bottom bends slightly to calotte 6 sidewall, general bending degree liquid distribution effect between 0 ~ 45 ° is better).
Calotte 6 is the tubular structure of both ends open, in order to improve mass-and heat-transfer effect, internal layer gear liquid sieve plate 8 can also be provided with at the lower calotte inner ring being positioned at column plate upper end, internal layer gear liquid sieve plate 8 and calotte 6 be concentric arrange and and leave space between calotte 6 sidewall, to ensure that the distance at secondary liquid distribution plate 8 to calotte center is kept off between liquid sieve plate 8 between calotte 6 sidewall and internal layer simultaneously, so that the liquid beaten on secondary liquid distribution plate 9 can enter calotte 6 and internal layer and keep off between liquid sieve plate 8 and carry out secondary mass transfer with gas, and by the some row's sieve apertures on internal layer gear liquid sieve plate 8 partially liq brought in the space in internal layer gear liquid sieve plate 8.
The overall big up and small down type structure of collecting tank 4, and its open top end bottom end closure, collecting tank bottom embeds in calotte 6, and the sidewall in the middle part of collecting tank 4 welds mutually with calotte 6 sidewall; The sidewall of collecting tank bottom has row's spray apertures 44 (wherein, collecting tank 4 in the present embodiment is made up of mutually through upper, middle and lower three part, the cross section on collecting tank top 41 is the isosceles trapezoid of standing upside down, in the middle part of collecting tank, the cross section of 42 is rectangle, the cross section of collecting tank bottom 43 is similarly the isosceles trapezoid of handstand, and the identical length etc. on the long limit of the length of side of rectangle in the middle part of the length of the isosceles trapezoid minor face on collecting tank top and collecting tank and the isosceles trapezoid of collecting tank bottom, and this length is equal to the hydraulic diameter of calotte).
In the present embodiment, the cell body that liquid structure 5 is up big and down small type falls, and the maximum gauge of this cell body upper end is corresponding with the hydraulic diameter of calotte 6, the bottom sidewall of the sidewall upper of cell body and calotte is made to realize seamless welding, then on the base plate of this cell body, some liquid reducing holes 10 are had, for falling liquid to descending trays.
In addition, the shape of liquid reducing hole 10, spray apertures 44 and sieve aperture 3 is oval elongated hole in the present embodiment, and calotte 6 is cuboid.
Embodiment 2
As shown in Figures 9 and 10, the invention provides a kind of lower resistance high-efficient tower plate, comprise column plate 1 and calotte 6 (calotte 6 is the tubular structure of both ends open), this calotte 6 top is provided with collecting tank 4, bottom is provided with and falls liquid structure 5, the part calotte being positioned at column plate 1 upper end is distributed with some row's sieve apertures 3 with the middle part of the part calotte being positioned at column plate 1 lower end is all parallel, the periphery being positioned at the upper calotte of column plate upper end is provided with concentric skin gear liquid sieve plate 7 (and this skin gear liquid sieve plate outreach cap side walls is about 5-150mm), outer gear liquid sieve plate 7 is welded into a cavity structure with cap side walls, the bottom of this cavity structure offers some sieve apertures 3, also parallelly on the sidewall of outer gear liquid sieve plate 7 have some row's sieve apertures 3, on the sidewall of the part calotte between this cavity structure and column plate 1, (about distance column plate 25mm place) offers an arrangement liquid aperture 2, and its opening diameter is 10mm, and perforate spacing is 15mm.
The calotte 6 inside sidewalls position circumference corresponding with this arrangement liquid aperture 2 is provided with secondary liquid distribution plate 9, this secondary liquid distribution plate 9 is concentric and and leave certain space between cap side walls, to ensure that the liquid flowed out by cloth liquid aperture 2 is beaten carry out quadratic distribution on this secondary liquid distribution plate 9 with calotte 6.
Collecting tank 4 in the present embodiment is up big and down small type structure, and this collecting tank bottom 43 is designed to the form of overflow launder, and in the middle part of this overflow launder and collecting tank 42 bottoms opening between leave space, and the aperture area of this overflow launder of collecting tank bottom 43 is greater than the aperture area of 42 bottoms in the middle part of this collecting tank, to ensure that liquid passes through to distribute to underflow stream after 42 inflows collecting tank bottom 43 (i.e. overflow launder) in the middle part of collecting tank top 41 and collecting tank again again.
The overflow launder that liquid structure 5 is designed to up big and down small type equally falls, with the similar of the sump bottom in the present embodiment, and the diameter on the top of this cell body is greater than the diameter of calotte 6, cell body is welded on calotte 6 lower end by plate muscle and arranges with calotte 6 is concentric, leave gap between the sidewall of cell body and calotte 6 sidewall, the liquid lowered is distributed to underflow stream by this gap again.
The shape of liquid reducing hole 10, spray apertures 44 and sieve aperture 3 is all designed to circular port in the present embodiment, and calotte 6 is cylinder.
Embodiment 3
As shown in figure 11, the invention provides a kind of lower resistance high-efficient tower plate, comprise column plate 1 and calotte 6 (calotte 6 is the tubular structure of both ends open), this calotte 6 top is provided with collecting tank 4, bottom is provided with and falls liquid structure 5, the part calotte being positioned at column plate 1 upper end is distributed with some row's sieve apertures 3 with the middle part of the part calotte being positioned at column plate 1 lower end is all parallel, the periphery being positioned at the upper calotte of column plate upper end is provided with concentric skin gear liquid sieve plate 7 (and this skin gear liquid sieve plate outreach cap side walls is about 5-150mm), outer gear liquid sieve plate 7 is welded into a cavity structure with cap side walls, the bottom of this cavity structure offers some sieve apertures 3, also parallelly on the sidewall of outer gear liquid sieve plate 7 have some row's sieve apertures 3, on the sidewall of the part calotte between this cavity structure and column plate 1, (about distance column plate 50mm place) offers an arrangement liquid aperture 2, its opening diameter is 10mm, perforate spacing is 20mm, carries out quadratic distribution to ensure to keep off in the liquid in cavity structure that liquid sieve plate 7 becomes with calotte 6 sidewall weld and the liquid on column plate 1 can flow under column plate 1 calotte 6 by cloth liquid aperture 2.
The inverted cone-shaped structure of the overall big up and small down type of collecting tank 4, and its open top end bottom end closure, collecting tank bottom embeds in calotte 6, and the sidewall in the middle part of collecting tank 4 welds mutually with calotte 4 sidewall; The sidewall of collecting tank bottom has row's spray apertures 44.
The overflow launder that liquid structure 5 is designed to up big and down small type falls, and the diameter on the top of this cell body is greater than the diameter of calotte 6, cell body is welded on calotte 6 lower end by plate muscle and arranges with calotte 6 is concentric, leave gap between the sidewall of cell body and calotte 6 sidewall, the liquid lowered is distributed to underflow stream by this gap again.
The shape of liquid reducing hole 10, spray apertures 44 and sieve aperture 3 is all designed to polygonal hole (preferred hexagonal hole) in the present embodiment, and calotte 6 is tri-prismoid.
Embodiment 4
A kind of lower resistance high-efficient tower plate as shown in figures 13-16, comprise column plate 1 and some through column plate 1 calotte 6 welded with column plate 1, and this calotte 6 protrudes upward column plate 1 plane 200mm is upper calotte, stretching out column plate 1 plane 150mm is downwards lower calotte, this calotte 6 top is provided with collecting tank 4, bottom is provided with and falls liquid structure 5, the middle part of the upper calotte being positioned at column plate 1 upper end and the lower calotte being positioned at column plate 1 lower end is all staggered has some row's sieve apertures 3, upper calotte and column plate 1 junction (about distance column plate 25mm place) circumference have an arrangement liquid aperture 2, its opening diameter is about 5mm, perforate spacing is 10mm, this cloth liquid aperture 2 can by the liquid on column plate 1 downward water conservancy diversion.
The overall big up and small down type structure of collecting tank 4, and its open top end bottom end closure, collecting tank bottom embeds in calotte 6, and the sidewall in the middle part of collecting tank 4 welds mutually with calotte 6 sidewall; The sidewall of collecting tank bottom has row's spray apertures 44 (wherein, collecting tank 4 in the present embodiment is made up of mutually through upper, middle and lower three part, the cross section on collecting tank top 41 is the isosceles trapezoid of standing upside down, in the middle part of collecting tank, the cross section of 42 is rectangle, the cross section of collecting tank bottom 43 is similarly the isosceles trapezoid of handstand, and the identical length etc. on the long limit of the length of side of rectangle in the middle part of the length of the isosceles trapezoid minor face on collecting tank top and collecting tank and the isosceles trapezoid of collecting tank bottom, and this length is equal to the hydraulic diameter of calotte).
In the present embodiment, the cell body that liquid structure 5 is up big and down small type falls, and the maximum gauge of this cell body upper end is corresponding with the hydraulic diameter of calotte 6, the bottom sidewall of the sidewall upper of cell body and calotte is made to realize seamless welding, then on the base plate of this cell body, some liquid reducing holes 10 are had, for falling liquid to descending trays.
In addition, the shape of liquid reducing hole 10, spray apertures 44 and sieve aperture 3 is oval elongated hole in the present embodiment, and calotte 6 is cuboid.
During distillation operation, as illustrated in FIG 8 and FIG 12, liquid falls liquid structure 5 overflow from upper level column plate 1, flow under the influence of gravity into the collecting tank 4 (liquid flow direction as shown in Figure 12) of next stage column plate, flowed out by the spray apertures 44 on collecting tank 4 sidewall or the gap between collecting tank 4 and calotte 6 sidewall, and paste calotte wall and under, and enter the gas phase moved upward in cavity that calotte 6 surrounds from the bottom to top and carry out counter current contacting.When sieve aperture 3 position of liquid stream in the middle part of calotte 6, major part liquid is pulled out liquid film by sieve aperture 3, by rise from calotte 6 bottom blowing, spray broken, move to the liquid of outer gear liquid sieve plate 7 and the gas secondary heat and mass passed, gas-liquid separation simultaneously, liquid is fallen on column plate 1; A small amount of liquid can flow down from the inwall of calotte 6, again enters into calotte 6 inner from cloth liquid aperture 2, enters into secondary liquid distribution plate 9 and carries out two substandard cloth liquid with the space that calotte 6 sidewall is formed.Liquid is forming thin film drainage with on calotte 6 sidewall of sieve aperture 3, the airflow function of calotte 6 is entered with level, injection, fragmentation, be distributed to the liquid of internal layer gear liquid sieve plate 8, again interact with air-flow, form injection, shattering process, carry out heat and mass, gas-liquid is separated in calotte 6 inside, in the liquid fallen from cap side walls or ectonexine gear liquid sieve plate and space due to gravity fall into bottom calotte liquid joint after enter and fall liquid structure 5, and then enter next stage column plate 1.
Above the embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the invention scope change and improve, and all should still belong within this patent covering scope.
Claims (10)
1. a lower resistance high-efficient tower plate, comprise column plate (1) and some calottes (6), it is characterized in that: described calotte (6) is through column plate (1) and weld with column plate, and the part that described calotte (6) protrudes upward column plate (1) plane is upper calotte, the part of stretching out column plate plane is downwards lower calotte, described upper calotte and lower calotte one-body molded; Described calotte (6) top is provided with collecting tank (4), and bottom is provided with and falls liquid structure (5), and the middle part of described upper calotte and described lower calotte all has some row's sieve apertures (3); Described upper calotte and described column plate junction circumference have an arrangement liquid aperture (2).
2. lower resistance high-efficient tower plate according to claim 1, it is characterized in that: position circumference corresponding with described cloth liquid aperture (2) inside described cap side walls is provided with secondary liquid distribution plate (9), described secondary liquid distribution plate (9) is concentric and and leave space between cap side walls with described calotte (6).
3. lower resistance high-efficient tower plate according to claim 1, it is characterized in that: the tubular structure that described calotte (6) is both ends open, and the periphery of described upper calotte is provided with concentric skin gear liquid sieve plate (7), described skin gear liquid sieve plate (7) becomes a cavity body structure with the sidewall weld of described upper calotte, and the bottom of described cavity body structure is higher than the height of described cloth liquid aperture (2), the bottom of described cavity body structure is provided with some sieve apertures (3), and the sidewall of described skin gear liquid sieve plate (7) also has some row's sieve apertures (3).
4. lower resistance high-efficient tower plate according to claim 1, it is characterized in that: the tubular structure that described calotte (6) is both ends open, and described lower calotte inner ring is provided with internal layer gear liquid sieve plate (8), described internal layer gear liquid sieve plate (8) with described calotte concentric and and leave space between described lower cap side walls, described secondary liquid distribution plate (9) is kept off between liquid sieve plate (8) to the distance at described calotte center between described cap side walls and described internal layer, and the middle part of described internal layer gear liquid sieve plate (8) has some row's sieve apertures (3).
5. lower resistance high-efficient tower plate according to claim 2, is characterized in that: the Upper vertical of described secondary liquid distribution plate (9) is welded on the inner side of described cap side walls, and bottom bends to described cap side walls, and bending angle is 0 ~ 45 °.
6. lower resistance high-efficient tower plate according to claim 1, it is characterized in that: the overall big up and small down type structure of described collecting tank (4), and its open top end bottom end closure, collecting tank bottom (43) embeds in described calotte (6), and in the middle part of collecting tank, the sidewall of (42) welds mutually with described cap side walls; The sidewall of described collecting tank bottom (43) has some spray apertures (44) or has overfall.
7. lower resistance high-efficient tower plate according to claim 1, it is characterized in that: described in the cell body that liquid structure (5) is up big and down small type falls, and the maximum gauge of described cell body upper end is corresponding with the diameter of described calotte (6), the sidewall upper of described cell body is welded with the bottom side wall seamless of described calotte, the base plate of described cell body has some liquid reducing holes (10).
8. lower resistance high-efficient tower plate according to claim 1, it is characterized in that: described in the cell body that liquid structure (5) is up big and down small type falls, and the diameter on the top of described cell body is greater than the diameter of described calotte (6), described cell body to be welded in described cap side walls by plate muscle and described cell body is arranged with described calotte (6) is concentric, leaves gap between the sidewall of described cell body and described calotte (6) sidewall.
9. lower resistance high-efficient tower plate according to claim 1, is characterized in that: described calotte (6) stretches out column plate (1) plane 100mm-250mm up or down; Described cloth liquid aperture (2) is positioned at distance column plate 5-50mm place in described cap side walls, and its opening diameter is 2-10mm, and perforate spacing is 3-30mm.
10. the lower resistance high-efficient tower plate according to any one of claim 1-9, is characterized in that: the arrangement of described sieve aperture (3) is in staggered, parallel or arranged side by side mode, and its aperture is 3-30mm, and perforate spacing is 6-25mm; The shape of described liquid reducing hole (10), spray apertures (44) or sieve aperture (3) is circle, bar shaped or polygon; Described calotte (6) is cuboid, cylinder, tri-prismoid or multiedge cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707312.6A CN104383709B (en) | 2014-11-27 | 2014-11-27 | A kind of lower resistance high-efficient tower plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707312.6A CN104383709B (en) | 2014-11-27 | 2014-11-27 | A kind of lower resistance high-efficient tower plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104383709A true CN104383709A (en) | 2015-03-04 |
| CN104383709B CN104383709B (en) | 2016-03-02 |
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| CN201410707312.6A Active CN104383709B (en) | 2014-11-27 | 2014-11-27 | A kind of lower resistance high-efficient tower plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492741A (en) * | 2016-11-22 | 2017-03-15 | 桐城市湃腾机械设计有限公司 | A kind of tower tray for sieve-plate tower |
| CN108079750A (en) * | 2018-01-02 | 2018-05-29 | 青岛理工大学 | Gas adsorption and trapping device |
| CN108339350A (en) * | 2018-04-19 | 2018-07-31 | 镇江市恒升达化工科技有限公司 | A kind of urea granulation tower powder/dust reclaiming device of lower resistance |
| CN111744225A (en) * | 2020-07-24 | 2020-10-09 | 邓健 | Plate-type packing rectifying tower |
| CN114007731A (en) * | 2019-07-02 | 2022-02-01 | 卡萨尔公司 | Reactor for urea synthesis |
| CN115253354A (en) * | 2022-07-25 | 2022-11-01 | 山东凯斯达机械制造有限公司 | Sieve plate tower plate unit component, stripping tower type device and grain and oil deep processing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492741A (en) * | 2016-11-22 | 2017-03-15 | 桐城市湃腾机械设计有限公司 | A kind of tower tray for sieve-plate tower |
| CN108079750A (en) * | 2018-01-02 | 2018-05-29 | 青岛理工大学 | Gas adsorption and trapping device |
| CN108339350A (en) * | 2018-04-19 | 2018-07-31 | 镇江市恒升达化工科技有限公司 | A kind of urea granulation tower powder/dust reclaiming device of lower resistance |
| CN114007731A (en) * | 2019-07-02 | 2022-02-01 | 卡萨尔公司 | Reactor for urea synthesis |
| CN114007731B (en) * | 2019-07-02 | 2024-03-19 | 卡萨尔公司 | Reactor for urea synthesis |
| CN111744225A (en) * | 2020-07-24 | 2020-10-09 | 邓健 | Plate-type packing rectifying tower |
| CN115253354A (en) * | 2022-07-25 | 2022-11-01 | 山东凯斯达机械制造有限公司 | Sieve plate tower plate unit component, stripping tower type device and grain and oil deep processing method |
| CN115253354B (en) * | 2022-07-25 | 2023-08-18 | 山东凯斯达机械制造有限公司 | Screen plate column plate unit assembly, stripping tower device and grain and oil deep processing method |
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|---|---|
| CN104383709B (en) | 2016-03-02 |
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