JP4593869B2 - Gas-liquid contact mechanism in the device for mass transfer etc. - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention has an internal structure partitioned into a large number of flow paths, and includes a liquid distributor disposed at an upper portion and a liquid collector disposed at a lower portion, and mass transfer, heat exchange or mixing between a gas and a liquid. The present invention relates to a gas-liquid contact mechanism in a device that performs the above.
[0002]
[Prior art]
Conventionally, a regular filler as shown in a partial sectional view in FIG. 23 is known as a regular filler in this type of apparatus. This regular packed body a is formed of a porous thin plate that is formed into a plurality of corrugated shapes and alternately stacked at a predetermined interval below a liquid distributor disposed at the upper part of a packed packed column constituting the apparatus. The sheets b are arranged parallel to each other so as to extend in the diagonal direction of the corrugation, and are arranged in multiple layers so as to be inverted in the reverse direction and extended in the diagonal direction at the position contacting the inner wall of the packed tower. It will be. The liquid that freely falls as droplets from the liquid distributor flows down along these thin sheet sheets b and wets the surface of the sheet b. On the other hand, the gas enters and rises from the gas inlet at the bottom of the tower, passes through the regular packing a, and exits from the gas outlet at the top of the tower. While the gas passes through the regular packing a, gas-liquid contact is performed, and desired mass transfer, heat exchange, or mixing is performed.
[0003]
[Problems to be solved by the invention]
The problem with the conventional ordered packed body is that, firstly, a part of the sheet b constituting the ordered packed body a contacts the inner wall c of the packed tower at its bent edge. The liquid flowing down through these sheets b moves to the inner wall c, and a large portion of the liquid flows back along the inner wall c as a wall flow without returning to the sheet b. On the other hand, the gas rising in the packed tower has a parabolic flow velocity distribution in the radial direction of the cross section, the flow velocity at the center is the fastest, and when approaching the wall surface, the flow velocity approaches zero due to viscosity. Therefore, the rising gas tends to flow through the center of the tower, and almost no gas flows through the wall surface. Due to this gas drift, the wall flow of the liquid is less in contact with the gas than the liquid flowing in the center, resulting in non-uniformity in the reaction to be achieved as a result of non-uniform gas-liquid contact.
[0004]
The second problem of the conventional regular packing body is that in this regular packing body a, the sheet b is arranged obliquely, so that the pressure loss is high, the energy consumption is correspondingly high, and the efficiency is low. is there.
[0005]
The third problem of the above-mentioned conventional regular packing is that the upper limit of the gas load is kept relatively low because the device cannot be operated soundly when the gas load is increased.
[0006]
That is, when the flow rate of the liquid supplied from the liquid distributor at the top of the tower is increased, the descending liquid gets wet while spreading the surface of the packing, but when the liquid volume is further increased, the liquid film becomes thicker and partially Leaves the liquid film as droplets. Therefore, if the flow rate of the gas added from the lower part of the tower is increased while the liquid is flowing from the top, the liquid film surface is easily disturbed by the high gas flow velocity and becomes droplets, which are blown upward by the gas. As a result, a certain component is concentrated and the descending liquid is caused to flow backward, and the reaction efficiency is deteriorated. The phenomenon that the gas blows off the droplets is often seen until the liquid falls from the liquid distributor at the top of the tower to the top of the regular packing or in the vicinity of the liquid collector provided at the bottom of the tower. For example, it behaves like raindrops from rain gutters blown in all directions by strong winds during typhoons. The liquid distributor is for supplying the liquid uniformly to the regular packed body in the cross-sectional direction of the tower, and the above behavior that blows off the droplets lowers the performance of the packed tower, and therefore must be prevented as much as possible. On the other hand, the liquid collector must collect the separated liquid without blowing it upward as droplets. The above-mentioned conventional apparatus is an effective countermeasure against the scattering and blowing up of liquid droplets in the space between the liquid distributor and the regular packing body and between the regular packing body and the liquid collector due to the increase in the gas flow rate. Does not have.
[0007]
As for the third problem, a liquid distribution / collection mechanism described in Japanese Patent Application Laid-Open No. 2001-170475 has been proposed to solve this problem. In this mechanism, as shown in FIG. 24, a liquid distribution rope h formed by twisting a plurality of strand portions m to a nosul g of a liquid distribution pipe f attached to a liquid distributor e of a packed tower d is connected. The liquid distribution rope h is connected to the regular filler i. The liquid is distributed from the liquid distribution pipe f to the regular packing body i through the liquid distribution rope h and the strand part m branched in two, and the liquid which has completed the gas-liquid contact is formed by twisting a plurality of strand parts n. The liquid collecting mechanism k including the liquid collecting rope j is transferred to the liquid outlet l. Therefore, in this apparatus, the liquid is expected to be reliably transferred to the regular packing body and taken out from the regular packing body without being blown upward even at a high gas velocity.
[0008]
This liquid distribution / aggregation mechanism seems to be an ideal liquid distribution method that solves the third problem in theory, but as a result of the experiment, the two strand portions m constituting the liquid distribution rope h are Even if it is composed of the same number of wires, each wire flows first due to a slight difference in twist angle between the wires or a difference in the compatibility of the liquid based on the difference in the surface roughness of each wire. The flow of liquid is not uniform for each wire, and the wire that flows most easily has a liquid path ahead of the other wires, and the subsequent liquid follows and does not flow along the other wires through this liquid path. Since there is a tendency, the liquid flowing from the liquid distributor to the liquid distribution rope h does not necessarily flow evenly to the two strand portions m branched from the liquid distributor, and as a result, the liquid flowing to the regular packing i also becomes non-uniform and complete. Inability to make proper gas-liquid contact It was found.
[0009]
The present invention has been considered in view of the problems of the conventional regular packings described above, and the pressure loss is improved without causing non-uniform gas-liquid contact in the regular packings due to the wall flow. Mass transfer that can eliminate the scattering and blowing up of liquid droplets between the liquid distributor and the regular packing body and the space between the regular packing body and the liquid collector without causing non-uniform gas-liquid contact. An object of the present invention is to provide a gas-liquid contact mechanism in an apparatus that performs the above.
[0010]
[Means for Solving the Problems]
The gas-liquid contact device in the apparatus for performing mass transfer or the like according to the present invention that achieves the above object has a large number of flows between the liquid distributor disposed in the upper part of the apparatus and the liquid collector disposed in the lower part of the apparatus. In an apparatus that has an internal structure that divides a path and performs mass transfer between gas and liquid, heat exchange, or mixing,
An ordered packing body constituting the internal structure, comprising a plurality of packing body components, wherein each packing body component is perpendicular to each other in parallel with each other in a non-contact state with the inner wall of the apparatus and an adjacent packing body component. An extended regular packing,
A plurality of adapters connecting the liquid distributor and the regular packing, and supplying liquid from the liquid distributor to the regular packing;
The liquid collector is connected to the regular filler, and a plurality of collectors for supplying liquid from the regular filler to the liquid collector is provided.
[0011]
According to the present invention, each filler component extends vertically in parallel to each other in a non-contact manner with the inner wall of the apparatus and the adjacent filler component, so that it flows down from the liquid distributor to each filler component. The liquid moves to the inner wall of the apparatus and does not flow into the wall, and moves to the adjacent packing component and flows to the liquid collector without causing a non-uniform liquid flow. As a result, the amount of liquid flowing through each filler component is uniform, and uniform gas-liquid contact is achieved. In addition, since each filler component extends in the vertical direction in the apparatus, pressure loss can be minimized. Furthermore, since the liquid distributor and the regular packing are directly connected by an adapter, and the regular packing and the liquid collector are also directly connected by the collector, the liquid distributor is regularly connected to the regular packing by the increase in the gas flow rate. It is possible to prevent the droplets from being scattered and blown up in the space between the filler and the liquid collector.
[0012]
In one aspect of the present invention, the filler component has one of a thread shape and a band shape, the adapter is formed integrally with the filler component, and one or more of the adapters are the other. It is directly connected to the inside of the tubular liquid distributor without branching from the adapter.
[0013]
According to this aspect, since the adapter is formed integrally with the packing body component, it is easy to manufacture and install, and the adapter is directly connected to the inside of the liquid distributor without branching from other adapters. Therefore, there is no risk of non-uniform liquid distribution due to the branching of the adapter, and the liquid is uniformly distributed to each filler component.
[0014]
In another aspect of the invention, the liquid distributor has one or more trough-like shapes, the filler component has a sheet-like shape, and the adapter includes the filler component. It is formed integrally, and one or a plurality of the adapters are directly connected to the trough-shaped liquid distributor without branching from other adapters.
[0015]
Also in this aspect, since the adapter is formed integrally with the filling body component, it is easy to manufacture and install, and the adapter is directly connected to the inside of the liquid distributor without branching from other adapters. Therefore, there is no possibility of non-uniform liquid distribution due to the branching of the adapter, and the liquid is uniformly distributed to each filler component.
[0016]
In another aspect of the invention, the liquid distributor has one or more tubular shapes, the filler component has a generally sheet-like shape, and the adapter is the sheet-like filling. The body component is formed by being cut into a plurality of parts in the vertical direction at the upper end thereof, and the plurality of the cut parts are gathered and held inside the tubular liquid distributor. It is characterized by.
[0017]
According to this aspect, even when the filling body component is in the form of a sheet, it can be directly connected to the tubular liquid distributor without the need to connect a special adapter, and manufacturing and construction are easy.
[0018]
In another aspect of the present invention, the regular filler further includes a spacer made of a plurality of long members extending in a horizontal direction and arranged at predetermined intervals so as to intersect the plurality of filler components. The spacer is fixed to the filler component at an intersection with the filler component to maintain a predetermined distance between the adjacent filler components.
[0019]
According to this aspect, since each filler component is fixed to the spacer at the intersection with the spacer, a predetermined distance can be maintained between the adjacent filler components. It is possible to prevent a non-uniform flow of liquid due to contact with the liquid crystal.
[0020]
In another aspect of the present invention, each of the filler components has a shape in which a flat sheet and a corrugated sheet are superposed, and the corrugated sheet has a predetermined distance between adjacent filler components. It functions as a spacer that maintains the above.
[0021]
According to this aspect, the corrugated sheet functions as a spacer that maintains a predetermined distance between adjacent filler components, so that it is not necessary to install another spacer in the apparatus and the construction is simple.
[0022]
In another aspect of the present invention, each of the filler components is a woven fabric in which a flat sheet and a sheet having a circular cross section are integrally woven, and the sheets having a circular cross section are adjacent to each other. It functions as a spacer that maintains a predetermined interval between the two.
[0023]
According to this aspect, since the sheet having an arc-shaped cross section functions as a spacer that maintains a predetermined interval between adjacent filler components, it is not necessary to install another spacer in the apparatus, and the construction is easy. It is.
[0024]
In another aspect of the present invention, the filler component has a polygonal line shape.
[0025]
According to this aspect, since the time for the liquid to flow down the packing member is increased, the gas-liquid contact time can be increased and the reaction can be sufficiently performed.
[0026]
In another aspect of the present invention, the filler component has a helical thread shape.
[0027]
Also in this aspect, since the time for the liquid to flow down the packing member is increased, the gas-liquid contact time can be increased and the reaction can be sufficiently performed.
[0028]
In another aspect of the present invention, the filler component has a polygonal strip shape.
[0029]
In another aspect of the present invention, the filler component has a spiral strip shape.
[0030]
In another aspect of the present invention, there is provided a regular filler that partitions a large number of flow paths between a liquid distributor disposed at the upper part of the apparatus and a liquid collector disposed at the lower part of the apparatus. In an apparatus for performing mass transfer, heat exchange or mixing between liquids, an adapter for connecting the liquid distributor and the regular packing, and supplying liquid from the liquid distributor to the regular packing, the other adapter A liquid supply adapter is provided which is directly connected to the liquid distributor independently of other adapters without branching from the liquid distributor.
[0031]
According to this aspect, the adapter is directly connected to the liquid distributor independently of the other adapter without branching from the other adapter, so that the liquid flow is not uneven due to the branch of the adapter, The liquid can be uniformly distributed from the liquid distributor to the regular filler.
[0032]
In another aspect of the present invention, it has an internal structure that partitions a large number of flow paths between a liquid distributor disposed at the upper part of the apparatus and a liquid collector disposed at the lower part of the apparatus, and includes a gas and a liquid. In a device that performs mass transfer, heat exchange, or mixing, a regular packing that constitutes the internal structure, comprising a plurality of packing components, each packing component comprising an inner wall of the device and an adjacent packing There is provided a gas-liquid contact mechanism in a device for performing mass transfer and the like, characterized by comprising regular packing bodies extending in a vertical direction parallel to each other in a non-contact state with a body component.
[0033]
According to this aspect, even when the existing regular packing or irregular packing is replaced by the regular packing according to the present invention and the existing liquid distributor is used, the regular packing of each of the above embodiments is a device. Since the wall flow is improved and the flow is uniform, the separation performance of the existing apparatus can be greatly improved. it can.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 and 2 show an embodiment of a gas-liquid contact mechanism according to the present invention. FIG. 1 is a schematic longitudinal sectional view showing an entire apparatus in which the gas-liquid contact mechanism is used. FIG. It is a perspective view which shows a contact mechanism.
[0035]
In FIG. 1, a packed tower 10 that accommodates a regular packed body that makes gas-liquid contact for mass transfer between gas and liquid is a cylindrical tower that is long in the vertical direction. A plurality of tubular liquid distributors 2 extending in the vertical direction for distributing the liquid to the regular packing body below are arranged. Liquid is supplied to the liquid distributor 2 via the liquid supply pipe 11. A plurality of tubular liquid collectors 3 for collecting the liquid that has completed gas-liquid contact are disposed in the lower portion of the packed tower 10. The liquid collector 3 communicates with the liquid outlet 8.
[0036]
A gas inlet 9 that is a target of gas-liquid contact is opened on the lower side wall of the tower 10, and a gas outlet 12 that has completed gas-liquid contact is opened at the top of the tower 10.
[0037]
In the tower 10, from above, a plurality of thread-like adapters 4 connected to the liquid distributor 2, a regular packing body 5 composed of a plurality of thread-like packing body components 6 formed integrally with each adapter 4, A plurality of thread-like collectors 7 formed integrally with the filler component 6 are arranged.
[0038]
In this embodiment, as shown in FIG. 2, the liquid distributor 2 is composed of four tubular liquid distributors, and the gas-liquid contact mechanism 1 includes four rectangular parallelepiped long cuboids constituting the regular packing body 5. It is composed of a filler-like component assembly 13, an adapter 4 and a collector 7. Each of the liquid distributors 2 supplies a liquid to the corresponding assembly 13 among these assemblies 13.
[0039]
Each assembly 13 is in a state where a plurality of vertically extending thread-like filler components 6 are maintained at a predetermined distance from each other, that is, adjacent filler components 6 are parallel to each other in a non-contact state. They are arranged to form rows and columns. Each packing component 6 is arranged so as to maintain a non-contact state with the inner wall of the column 10.
[0040]
As shown in the cross-sectional view of FIG. 3, a plurality of spacers 14 made of long members such as steel bars are provided on the upper end portion, the central portion, and the lower end portion of each aggregate 13. 3 is extended in the horizontal direction so as to intersect with the filler components of FIG. 3, and is extended in the horizontal direction so as to intersect with the filler components forming the rows at both ends in FIG. . Both ends of each spacer 14 are fixed to a tower wall or a frame (not shown), and are fixed to each packed body component 6 by an appropriate means such as welding or bonding at an intersection with each packed body component 6. The spacer 14 thus configured functions to maintain a predetermined interval between the adjacent filler components 6, and the occurrence of drift due to the movement of the liquid between the adjacent filler components 6. To prevent. In this embodiment, for the filler components 6 forming the rows of the aggregates 13, the spacers 14 are arranged so as to intersect only the filler components forming the rows at both ends. Not only this but you may arrange | position so that the packing body component 6 of each row | line | column may be crossed.
[0041]
In this embodiment, each thread adapter 4 that connects the liquid distributor 2 and the regular filler 5 and supplies the liquid from the liquid distributor 2 to the regular filler 5 has a one-to-one correspondence with any of the filler components 6. It is integrally formed in a relationship. Therefore, the same number of thread-like adapters 4 as the filler constituent elements 6 constituting the aggregate 13 are provided in each filler constituent element aggregate 13. Each adapter 4 is directly connected to the tubular liquid distributor 2 corresponding to each assembly 13 without branching from other adapters and without branching other adapters. Accordingly, a plurality of adapters 4 integrated with each of the plurality of filler components 6 constituting the aggregate 13 are assembled and bundled inside the lower end portion of the tubular liquid distributor 2 corresponding to each aggregate 13. It is inserted and held in an open shape. The state inside the lower end portion of the tubular liquid distributor 2 into which the adapter 4 is assembled and inserted is shown in the cross-sectional view of FIG. Each adapter 4 is inserted in a state where a certain gap is formed between adjacent adapters, and the liquid is gently bundled so that the liquid flows down from the entire circumference of each adapter 4 along the adapter 4.
[0042]
In this embodiment, each tubular collector 7 that connects the tubular liquid collector 3 and the regular filler 5 and supplies the liquid from the regular filler 5 to the liquid collector 3 is similar to the adapter 4 in the filler component 6. It is integrally formed with any one of them in a one-to-one relationship. Therefore, the same number of collectors 7 as the filler components 6 constituting the aggregate 13 are provided in each filler component aggregate 13. Each collector 7 is directly connected to the tubular liquid collector 3 corresponding to each assembly 13 without branching from other collectors and without branching other collectors. Accordingly, a plurality of collectors 7 integrated with each of the plurality of filler components 6 constituting the aggregate 13 are gathered and bundled inside the upper end portion of the tubular liquid collector 3 corresponding to each aggregate 13. It is inserted and held in an open shape.
[0043]
As the filamentous material forming the filamentous filler component 6, the filamentous adapter 4, and the filamentous collector 7, all fibers such as metal fibers, plastic fibers, carbon fibers, ceramic fibers, vegetable fibers such as cotton, and animal fibers such as wool are included. It can be used. In addition, the form of the thread-like material is not particularly limited, such as a wire, a twisted yarn, a monofilament, a wire, etc., but a twisted or twisted wire-like thread material such as a wire made by twisting a plurality of thin steel wires is a liquid. Is preferable because the movement of the liquid is promoted by flowing along a space between a plurality of yarns or wires constituting the twisted yarn by capillary action. In this embodiment, as a preferred example, a wire in which two steel wires made by twisting seven steel wires having a diameter of 0.1 mm are twisted into one filler component 6, adapter 4, collector 7. Can be used as
[0044]
As the liquid distributor, in addition to the tubular liquid distributor 2 shown in FIGS. 1 and 2, for example, as shown in FIG. 5, a trough-type liquid distributor 15 can be used. The liquid distributor 15 is provided with a plurality of notches 15a constituting liquid outlets at predetermined intervals on both sides, and the upper ends 4a of the thread adapters 4 are bent and hooked on the notches 15a to distribute the thread adapter 4 to the liquid. Connected to the vessel 15.
[0045]
FIG. 6 is a perspective view showing another embodiment of the gas-liquid contact device according to the present invention.
In this embodiment and the embodiments described later, the same components as those of the embodiment of FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.
[0046]
In this embodiment, each adapter 16, the filling body component 17 constituting the regular filling body 5 and the collector 18 are integrally formed by a single band-like body, which is different from the embodiment of FIGS. . The belt-like body can be composed of, for example, a woven fabric made of a plurality of steel wires. FIG. 7 shows a cross-sectional view of each filler component assembly 13.
[0047]
The state inside the lower end portion of the tubular liquid distributor 2 into which the band-shaped adapter 16 is assembled and inserted is shown in the cross-sectional view of FIG. Each adapter 16 is folded in half, and a certain amount of gap is formed between adjacent adapters, and the liquid is randomly bundled so that the liquid flows down along the adapter 16 from the entire circumference of each adapter 16. Has been inserted.
[0048]
FIG. 9 is a perspective view showing another embodiment of the gas-liquid contact device according to the present invention. In this embodiment, each adapter 19, the packing body component 20 constituting the regular packing body 5 and the collector 21 are integrally formed by a single thread-like body, and the embodiment of FIGS. 1 and 2. Although identical, each filler component 20 is formed in a spiral, which increases the time for liquid to flow down the filler component 20 and increases the gas-liquid contact time. ing. A cross-sectional view of each filler component assembly 13 is shown in FIG.
[0049]
For the same purpose, as shown in FIG. 11, the filler component 22 may be formed of a broken line-like thread.
[0050]
FIG. 12 is a perspective view showing another embodiment of the gas-liquid contact device according to the present invention. This embodiment is the same as the embodiment of FIG. 6 in that each adapter 22, the filler component 23 constituting the regular filler 5 and the collector 24 are integrally formed by a single strip. However, each band-shaped filler component 23 is continuously twisted and formed in a gentle spiral shape, thereby increasing the time for the liquid to flow down the filler component 23, and the gas-liquid The contact time is lengthened. A cross-sectional view of each filler component assembly 13 is shown in FIG.
[0051]
FIG. 14 is a perspective view showing another embodiment of the gas-liquid contact device according to the present invention. This embodiment is the same as the embodiment of FIG. 6 in that each adapter 25, the filler component 26 constituting the regular filler 5, and the collector 27 are integrally formed by a single strip. However, each band-shaped filler component 26 is continuously twisted and formed into a spiral having a steeper angle than the embodiment of FIG. 12, whereby the liquid travels through the filler component 26. The time to flow down is lengthened, and the gas-liquid contact time is lengthened. A cross-sectional view of each filler component assembly 13 is shown in FIG.
[0052]
FIG. 16 is a perspective view showing another embodiment of the gas-liquid contact device according to the present invention. In this embodiment, the liquid distributor is composed of a trough 30, the filling body component 31 has a sheet-like shape made of a wire mesh, and the adapter 32 and the collector 33 are also formed in a sheet shape made of a wire mesh. It is formed integrally with the body component 31. The adapter 32 is directly connected to the trough 30 without branching from other adapters and without branching other adapters.
[0053]
In the illustrated embodiment, a single sheet integrally formed with a filler component 31-1, an adapter 32-1, and a collector 33-1; a filler component 33-2, an adapter 32-2, One sheet in which the collector 33-2 is integrally formed forms a pair, and the upper ends of the adapters 32-1 and 32-2 and the lower ends of the collectors 33-1 and 32-2 are welded. In addition, one sheet integrally formed with the packing body component 31-3, the adapter 32-3, and the collector 33-3, and the packing body component 31-4, the adapter 32-4, and the collector 33-4 are integrated. One sheet formed as a pair forms a pair, and the upper ends of the adapters 32-3 and 32-4 and the lower ends of the collectors 33-3 and 33-4 are welded.
[0054]
Both ends of the upper ends of the adapters 32-1 and 32-4 are bent inward in a bowl shape to form a locking portion 35, which is hooked on the side wall 30a of the trough 30.
A liquid outflow notch 30b is formed on the side wall 30a of the trough 30 at a predetermined interval. In addition, a gas flow hole 46 is formed in the upper part of the adapters 32-1 to 32-4 and the lower part of the collectors 33-1 to 33-4 to allow gas to flow.
[0055]
The pair of collectors 33-1 and 33-2 and the pair of 33-3 and 33-4 fixed to each other are respectively inserted into a liquid collector 34 communicating with a liquid discharge port (not shown). A cross-sectional view of the regular packing 5 is shown in FIG.
[0056]
FIG. 18 is a perspective view showing another example of the sheet-like regular filler. In this example, each of the filler constituent elements 36 constituting the regular filler 5 has a shape in which a sheet 37 made of a flat metal mesh and a sheet 38 made of a corrugated metal mesh having a cross-sectional wave are superimposed. . The rightmost sheet 39 in the figure is a flat plate having no corrugated sheet. In this embodiment, since the corrugated sheet 38 functions as a spacer that maintains the adjacent flat plates 37 at a predetermined interval, the bar-like spacer 14 used in each of the above-described embodiments is unnecessary and the construction is simple. A partial cross-sectional view of this embodiment is shown in FIG.
[0057]
FIG. 20 is a perspective view showing another example of the sheet-shaped regular filler. In this example, each of the filler constituent elements 40 constituting the regular filler 5 is a woven fabric in which a sheet 41 made of a flat wire mesh and a plurality of sheets 42 made of a wire mesh having a circular cross section are integrally woven. As a shape. Also in this embodiment, since the sheet 42 having an arc-shaped cross section functions as a spacer for maintaining the adjacent flat plates 41 at a predetermined interval, the bar-like spacer 14 used in each of the above-described embodiments is not necessary and the construction is simple. is there. A partial cross-sectional view of this embodiment is shown in FIG.
[0058]
FIG. 22 is a front view showing another embodiment of the gas-liquid contact mechanism according to the present invention. In this embodiment, the liquid distributor 2 has a tubular shape, the filler component 43 has a sheet-like shape made of a wire mesh, and the adapter 44 has a sheet-like filler component 43 at its upper end. Are formed by being cut into a plurality of portions in the vertical direction, and a plurality of the cut portions forming the adapter 44 are assembled and inserted and held in the tubular liquid distributor 2. .
[0059]
According to this embodiment, even when the filler component 43 is in the form of a sheet, it can be directly connected to the tubular liquid distributor 2 without the need to connect a special adapter, facilitating manufacture and construction. There is a profit.
[0060]
In each of the above embodiments, the adapter is formed integrally with the filler component. However, the adapter and the filler component may be formed separately and then joined together.
[0061]
Further, only the adapter is configured to be directly connected to the liquid distributor independently from the other adapter without branching from the other adapter, and the regular filler is described in, for example, the above-mentioned JP-A-2001-170475. Even if such an X packing type regular packing body is used, the effect of the gas-liquid contact can be increased as compared with the branching type adapter described in the publication.
[0062]
Experimental example
In order to confirm the effect of the adapter according to the present invention, the following experiment was performed.
The vacuum distillation column is packed with the X-packing described in JP-A-2001-170475 as a regular packing, and the liquid distributor installed at the top of the column and the X-packing are indicated by reference numeral 4 in FIG. It connected with the several filamentous adapter of this invention embodiment. Each adapter used was a wire formed by twisting two steel wires each having a diameter of 0.25 mm. Using this apparatus, a two-component system of chlorobenzene and ethylbenzene was subjected to distillation separation. That is, the vapor of both components is blown from the lower part of the tower to the upper part, the vapor reaching the upper part is condensed and liquefied by a condenser, and the gas-liquid contact is performed by flowing from the liquid distributor to the X-packing through the adapter. It is. When this experiment was conducted at a gas velocity of F-Factor 2, the theoretical plate number Nt per meter (indicating the performance of the apparatus) was 7.6, and the surface area of the regular packing required to obtain 1 Nt was 65 m. ² Met. The gas concentration at the top of the column was 77.5% by weight.
[0063]
For comparison, the same experiment was performed under the same conditions except that the branched adapter described in JP-A-2001-170475 was used as the adapter. The adapter was formed by twisting four steel wires each having a diameter of 0.25 mm into two twists. As a result, Nt per meter is 6.8, and the surface area of the regular packing necessary to obtain 1 Nt is 72 m. ² Met. The gas concentration at the top of the column was 76.7% by weight.
[0064]
From the above experimental results, even if the same regular packing is used, if the adapter of the present invention is used as an adapter, the required surface area of the regular packing is 72 m per 1 Nt compared to the case of using a conventional branch adapter. ² To 65m ² It can be seen that the gas concentration increases from 76.7 wt% to 77.5 wt%, and the efficiency of the gas-liquid contact device can be significantly improved by using the adapter of the present invention. I understand that.
[0065]
Therefore, the adapter of each of the above embodiments can uniformly disperse the liquid in the liquid distributor, thus improving the performance of the existing packing when used as a liquid distributor for existing regular packing or irregular packing. can do.
[0066]
Further, the collector is not limited to that in each of the above embodiments, and for example, the collector described in JP 2001-170475 A can also be used.
[0067]
When the collector of each of the above embodiments is installed directly under the existing regular packing or irregular packing, the liquid after the reaction such as condensation can be collected in the liquid collector and taken out of the tower through the collector. Therefore, since the conventional free droplets are used, the drawback of being blown up again into the packing is eliminated, and the performance is improved.
[0068]
In addition, when the adapters and collectors of the above embodiments are installed on the upper and lower parts of the existing regular packing or irregular packing, not only the performance of the existing packing can be improved, but also the free fall of the droplets is prevented. Further, it is possible to operate at a higher load.
[0069]
Even when the existing regular packing or irregular packing is replaced with the regular packing of each of the above embodiments, and the existing liquid distributor is used, the regular packing of each of the above embodiments is adjacent to the inner wall of the apparatus and the adjacent wall. Since they extend in the vertical direction in parallel with each other in a non-contact state with the packing body component, the wall flow is improved and the flow is uniform, so that the separation performance of the existing apparatus can be greatly improved.
[0070]
Furthermore, when the height of the tower is remarkably limited, it is also possible to use it with the collector connected directly under the adapter of each of the above embodiments. That is, even if it is applied when there is no space for installing regular packing or irregular packing, a temporary performance can be obtained.
[0071]
【The invention's effect】
As described above, according to the present invention, each filler component extends vertically in parallel with each other in a non-contact manner with the inner wall of the apparatus and the adjacent filler component. The liquid that has flowed down to the body component moves to the inner wall of the apparatus and does not become a wall flow, and moves to the adjacent filler component and flows to the liquid collector without causing a non-uniform liquid flow. As a result, the amount of liquid flowing through each filler component is uniform, and uniform gas-liquid contact is achieved. In addition, since each filler component extends in the vertical direction in the apparatus, pressure loss can be minimized. Furthermore, since the liquid distributor and the regular packing are directly connected by an adapter, and the regular packing and the liquid collector are also directly connected by the collector, the liquid distributor is regularly connected to the regular packing by the increase in the gas flow rate. It is possible to prevent the droplets from being scattered and blown up in the space between the filler and the liquid collector.
[0072]
Further, in one aspect of the present invention, the adapter is formed integrally with the packing body component, so that it is easy to manufacture and install, and the adapter is directly connected to the inside of the liquid distributor without branching from another adapter. Therefore, there is no risk of non-uniform liquid distribution due to the branching of the adapter, and the liquid is uniformly distributed to each filler component.
[0073]
In another aspect of the present invention, even if the existing regular packing or irregular packing is replaced with the regular packing according to the present invention and the existing liquid distributor is used, the regular packing of each of the above embodiments is used. Since the body extends vertically in parallel with each other in a non-contact manner with the inner wall of the device and the adjacent packing components, the wall flow is improved and the flow is uniform, greatly improving the separation performance of existing devices can do.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view showing an entire apparatus in which a gas-liquid contact mechanism of the present invention is used.
FIG. 2 is a perspective view showing an embodiment of the gas-liquid contact mechanism of the present invention.
FIG. 3 is a cross-sectional view of the filler component assembly according to the embodiment.
FIG. 4 is a cross-sectional view of a tubular liquid distributor with an adapter inserted.
FIG. 5 is a perspective view showing a trough type liquid distributor.
FIG. 6 is a perspective view showing another embodiment of the present invention.
FIG. 7 is a cross-sectional view of the filler component assembly according to the embodiment.
FIG. 8 is a cross-sectional view of a tubular liquid distributor with an adapter inserted.
FIG. 9 is a perspective view showing another embodiment of the present invention.
FIG. 10 is a cross-sectional view of the filler component assembly according to the embodiment.
FIG. 11 is a diagram showing a line-shaped filler component.
FIG. 12 is a perspective view showing another embodiment of the present invention.
FIG. 13 is a cross-sectional view of the filler component assembly according to the embodiment.
FIG. 14 is a perspective view showing another embodiment of the present invention.
FIG. 15 is a cross-sectional view of the filler component assembly according to the embodiment.
FIG. 16 is a perspective view showing another embodiment of the present invention.
FIG. 17 is a cross-sectional view of the ordered packing body of the same embodiment.
FIG. 18 is a perspective view showing another embodiment of the present invention.
FIG. 19 is a cross-sectional view of the ordered packing body of the same embodiment.
FIG. 20 is a perspective view showing another embodiment of the present invention.
FIG. 21 is a transverse cross-sectional view of the regular filler according to the embodiment.
FIG. 22 is a front view showing another embodiment of the present invention.
FIG. 23 is a partial cross-sectional view showing an example of a conventional gas-liquid contact mechanism.
FIG. 24 is a longitudinal sectional view showing another example of a conventional gas-liquid contact mechanism.
[Explanation of symbols]
1 Gas-liquid contact mechanism
2 Tubular liquid distributor
3 Liquid collector
4, 16, 19, 22, 25, 32, 44 Adapter
5 Regular packing
6, 17, 20, 23, 26, 31, 43 Packing body components
7, 18, 21, 24, 27, 33 Collector

Claims (4)

A device that is operated under conditions where droplets can be scattered and blown up between the liquid distributor and the regular packing body and between the regular packing body and the liquid collector due to an increase in the gas flow rate. In an apparatus having an internal structure that partitions a large number of flow paths between a disposed liquid distributor and a liquid collector disposed at a lower portion of the apparatus, and performing mass transfer between a gas and a liquid,
An ordered packing body constituting the internal structure, comprising a plurality of packing body components, wherein each packing body component is perpendicular to each other in parallel with each other in a non-contact state with the inner wall of the apparatus and an adjacent packing body component. An extended regular packing,
A plurality of adapters connecting the liquid distributor and the regular packing, and supplying liquid from the liquid distributor to the regular packing;
A plurality of collectors for connecting the liquid collector to the regular filler and supplying liquid from the regular filler to the liquid collector; and the adapter is more than a gas outlet opening at the top of the apparatus. Arranged below, the collector is located above the gas inlet opening at the bottom of the device, and there is no perforated plate to keep each packing component in a non-contact state A gas-liquid contact mechanism in a device that performs mass transfer, etc.     The filler component has either a thread shape or a band shape, and the adapter is formed integrally with the filler component, so that one or more of the adapters do not branch from other adapters. 2. The gas-liquid contact mechanism according to claim 1, wherein the gas-liquid contact mechanism is directly connected to the liquid distributor. In an apparatus for carrying out mass transfer between a gas and a liquid, having a regular packing that divides a large number of flow paths between a liquid distributor disposed at the top of the apparatus and a liquid collector disposed at the bottom of the apparatus An adapter for connecting the liquid distributor and the regular packing, and supplying liquid from the liquid distributor to the regular packing, the liquid being separated from the other adapter without branching from the other adapter. 2. The adapter for supplying a liquid in a gas-liquid contact mechanism according to claim 1 , wherein the adapter is directly connected to the distributor and disposed below a gas outlet opening at the top of the apparatus. In an apparatus for carrying out mass transfer between a gas and a liquid, having a regular packing that divides a large number of flow paths between a liquid distributor disposed at the top of the apparatus and a liquid collector disposed at the bottom of the apparatus A collector for connecting the regular filler and the liquid collector and supplying liquid from the regular filler to the liquid collector, the collector being disposed above a gas inlet opening at the bottom of the apparatus; 2. The collector for supplying liquid in the gas-liquid contact mechanism according to claim 1 , wherein the collector is directly connected to the liquid collector independently of the other collector without branching from the other collector.

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