JP2003299902A - Liquid gathering and dispersing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the height dimension of a processor and to enhance the operation stability of the processor while enhancing process performance. <P>SOLUTION: A liquid gathering and dispersing apparatus has a liquid storage member having a through-hole formed thereto and gathering a liquid falling from above to store the same and a liquid dispersion pipe arranged so as to make the through-hole and having an inflow hole formed to the side surface thereof to disperse the liquid flowing in from the liquid storage member. In this case, since the through-hole is formed to the liquid storage member for gathering the liquid falling from above to store the same and the liquid dispersion pipe is arranged so as to make the through-hole, liquid gathering and dispersing apparatuses 66-67 can be reduced in height dimension. As a result, the height dimension of the processor can be reduced and the processor can be miniaturized. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a liquid collecting and dispersing device.

[0002]

2. Description of the Related Art Conventionally, in a process apparatus such as a distillation apparatus, a distillation column is used to separate each component from a stock solution containing many components.

FIG. 2 is a conceptual diagram of a conventional distillation column.

In the figure, 11 is a distillation column, and a feed port 13 to which a stock solution M containing, for example, two components A and B, is fed to approximately the center of the column body 12 of the distillation column 11 in the height direction. Is formed. The component A has a lower boiling point than the component B. Then, the concentrating part AR11 is provided above the supply port 13 in the tower main body 12,
3, a collecting part AR12 is formed below the condensing part A
A plurality of theoretical stages are configured by R11 and recovery unit AR12.

In the recovery section AR12, the undiluted solution M descends, vapors rich in component A are generated in the upper part, and liquid rich in component B is generated in the lower part, and the liquid rich in component B descends. Then, the liquid rich in component B is discharged as a bottom liquid from a bottom liquid outlet (not shown) at the bottom of the tower body 12. A part of the bottoms is sent to an evaporator (not shown), converted into steam by the evaporator, and supplied into the column main body 12 through a steam inlet 14 formed below the recovery part AR12. Subsequently, the steam is
While being supplied to the recovery section AR12 and rising in the recovery section AR12, the recovery section AR12 comes into contact with the stock solution M to generate a vapor rich in component A from the stock solution M.

Then, the vapor rich in the component A is supplied to the enrichment section AR11, rises in the enrichment section AR11, and is discharged from the vapor outlet 15 at the top of the column main body 12. Subsequently, the vapor enriched in the component A is sent to a condenser (not shown), condensed in the condenser, becomes a liquid enriched in the component A, and is discharged as a distillate.

Further, in order to improve the separation performance, which represents the process performance of the distillation column 11, a part of the distillate is part of the concentration section A.
It is refluxed to R11 as a reflux liquid. Therefore, a reflux liquid inlet 16 is formed above the concentrating portion AR11, and the reflux liquid is supplied to the concentrating portion AR11 via the reflux liquid inlet 16. Along with this, the vapor that is rich in the component A and the liquid that is rich in the component A are brought into contact with each other in the concentrating portion AR11, and the concentration of the component A is increased.

By the way, in the distillation column 11 having the above-mentioned structure, the concentrating part AR11 and the recovering part AR12 are packed with regular packing as packing material. In the ordered packed column packed with the ordered packing, the separation performance is improved regardless of the inner diameter of the tower body 12 (hereinafter referred to as "tower size"), and therefore the packing height per theoretical plate is high. It is possible to reduce the value HETP that represents the height (hereinafter referred to as “filling height”) and the value ΔP that represents the pressure loss per theoretical plate. Then, in order to improve the separation performance, the distillation column 1
The liquid descending in 1 is uniformly dispersed in the horizontal section of the tower body 12.

That is, in order to disperse the reflux liquid supplied through the reflux liquid inlet 16 toward the concentrating portion AR11, a tubular type liquid dispersing device 21 is disposed above the concentrating portion AR11, and the concentrating portion AR11 is provided. The laminar type liquid collecting device 2 below the concentrating part AR11 in order to collect the liquid descending the liquid and the stock solution M supplied through the supply port 13.
2 is disposed, and in order to disperse the liquid collected by the liquid collecting device 22 toward the collecting unit AR12, the collecting unit AR
An open groove type liquid dispersion device 23 is disposed above 12.

The liquid dispersion device 21 has an open upper end,
Arranged vertically extending at the center of the tower body 12,
An open static pressure type stand pipe 25 and a stand pipe 25 for accumulating the liquid discharged from the discharge pipe 24 connected to the reflux liquid inlet 16 to generate a predetermined head pressure.
A main header 26 that extends in the horizontal direction at the lower end of and distributes the liquid in the stand pipe 25 in the radial direction,
And a plurality of arm tubes 27 connected to the main header 26 and extending in the horizontal direction to distribute the liquid in the main header 26 in a direction perpendicular to the main header 26. And the arm tube 2
A plurality of dispersion ports (not shown) for discharging the liquid are formed at 7. Therefore, the reflux liquid recirculated through the reflux liquid inlet 16 is stored in the stand pipe 25 as a liquid, and is dispersed toward the concentrating portion AR11 via the main header 26 and the arm tube 27.

Further, the liquid collecting device 22 has a collector box 2 which forms a liquid collecting groove 28 along the inner circumference of the tower body 12.
9, and between the opposing parts of the collector box 29,
A plurality of collector laminas 31 are installed in parallel with each other at a predetermined pitch, and the liquid collected by each collector laminar 31 is sent to the liquid collection groove 28.

The liquid dispersion device 23 is provided with a liquid collection groove 2
8, a discharge pipe 32 communicated with 8, and the discharge pipe 32
A first distribution groove 33 that extends in the horizontal direction at the lower end and has an open upper end to collect the liquid discharged from the discharge pipe 32 and to distribute the liquid in the radial direction;
Just below the distribution groove 33 of the
It has a plurality of second distribution grooves 34 whose upper ends are open to the atmosphere and which distributes the liquid in the first distribution grooves 33 in a direction perpendicular to the first distribution grooves 33. Further, a plurality of dispersion ports (not shown) for dispersing the liquid are formed in the second distribution groove 34. Therefore, the liquid sent to the liquid collection groove 28 is stored in the first distribution groove 33 via the discharge pipe 32 together with the stock solution M supplied via the supply port 13,
Through the distribution groove 34, and is dispersed toward the collecting portion AR12.

FIG. 3 is a sectional view showing an essential part of another conventional distillation column, and FIG. 4 is a sectional view showing an essential part of another conventional distillation column.

In FIG. 3, 12 is the tower body, 36 is a chimney hat type liquid collecting device disposed below the concentrating part AR11, and 37 is the liquid collected by the liquid collecting device 36 and dispersed in the collecting part AR12. It is a tubular type liquid dispersion device.

The liquid collecting device 36 is disposed above a collector box 39 forming a liquid groove 38 along the inner circumference of the tower body 12 and an opening 41 surrounded by the collector box 39 so as to overlap each other. The liquid is collected by the first and second caps 42 and 43 and is sent to the liquid groove 38.

Further, the liquid dispersion device 37 stores the liquid discharged from the discharge pipe 44 connected to the liquid groove 38 to generate a predetermined water head pressure, and the open static pressure type stand pipe 4 is provided.
5, a main header 46 that extends in the horizontal direction at the lower end of the stand pipe 45 to distribute the liquid in the stand pipe 45 in the radial direction, and a main header 46 that is connected to the main header 46 and extends in the horizontal direction. And a plurality of arm tubes (not shown) for distributing the liquid in the main header 46 in a direction perpendicular to the main header 46. Then, a plurality of dispersion ports for discharging the liquid are formed in the arm tube. Therefore, the liquid groove 38
The liquid sent to is stored in the stand pipe 45 together with the stock solution M supplied through the supply port 13, and is dispersed through the main header 46 and the arm tube.

Further, in FIG. 4, 12 is a tower body and 48
Is a riser tray type overflow type liquid collecting device disposed below the concentrating part AR11, and 37 is a tubular type liquid dispersing device for dispersing the liquid collected by the liquid collecting device 48 to the collecting part AR12.

The liquid collecting device 48 is arranged over the entire column main body 12, stores the liquid, and has a bottom plate 51 having a plurality of dispersion holes 52 formed at predetermined positions, and the dispersion holes 5 respectively.
2. A chimney 53 which is erected upward from 2 and has an opening formed at the upper end to serve as both a steam outlet and a liquid inlet, and above each chimney 53, the upper end of the chimney 53 and a predetermined distance. A cap 50 arranged with a gap (gap), and arranged below the bottom plate 51,
A dish-shaped receiving groove 54 for receiving the liquid flowing into the chimney 53 through the opening is provided. Therefore, the liquid received by the bottom plate 51 flows into the chimney 53 through the opening at the upper end of the chimney 53 and is collected by the receiving groove 54.

The liquid dispersion device 37 has the same structure as that shown in FIG. 3, and the liquid collected by the receiving groove 54 is discharged together with the stock solution M supplied through the supply port 13 into the discharge pipe 44.
It is stored in the stand pipe 45 via the and is dispersed via the main header 46 and the arm tube.

If necessary, in order to divide the space in the tower body 12 into two, a partition is provided extending in the vertical direction, and the first chamber is provided on the feed side for supplying the stock solution M. In the combined distillation column in which the second chamber is formed on the side cut side for discharging the side cut liquid, the liquid collected by the liquid collecting device is discharged as the side cut liquid and the liquid dispersion device is used. Dispersed by.

[0021]

However, in the conventional distillation column 11 described above, it is necessary to dispose the liquid dispersion devices 21, 23 and 37 in order to disperse the collected liquid, but the liquid dispersion device 21. , 37, it is necessary to dispose the stand pipes 25, 45 having large dimensions in the height direction, and in the case of the liquid dispersion device 23, it is necessary to stack the first and second distribution grooves 33, 34 in two stages. There is a distillation tower 11
The dimension in the height direction of the column becomes large, and the distillation column 11 becomes large.

In particular, in the case of a process system in which a large amount of liquid such as the stock solution M, the reflux solution, and the side-cut solution flows in and out in the middle part of the distillation column 11, the number of liquid collecting devices and liquid dispersing devices increases, so that the distillation is performed. The tower 11 becomes larger accordingly.

Further, in order to uniformly disperse the liquid, the stand pipes 25 and 45 having a predetermined volume, the first distribution groove 33, etc. are formed, and the stand pipes 25 and 45 and the first pipe are formed.
The liquid is accumulated in the distribution groove 33 and the like to form a static state in the liquid. However, when the amount of the liquid accumulated increases, the load of the distillation column 11 changes and the composition of the stock solution M changes. On the other hand, a time delay occurs and the operation stability of the distillation column 11 deteriorates.

Then, the liquid becomes the stand pipes 25 and 4.
5, as it is sent from the discharge pipe 32 and the like to the main headers 26 and 46, the first and second distribution grooves 33 and 34,
Since the flow is converted from the vertical direction to the horizontal direction, the outflow speed of the liquid discharged from each dispersion port varies. As a result, the liquid cannot be dispersed uniformly,
Maldistribution (unbalanced flow phenomenon) occurs and the separation performance of the distillation column 11 deteriorates.

The present invention can solve the problems of the conventional distillation column 11 described above, reduce the size of the process apparatus in the height direction, and improve the operation stability of the process apparatus. An object of the present invention is to provide a liquid collecting and dispersing device capable of enhancing process performance.

[0026]

To this end, in the liquid collecting and dispersing device of the present invention, a through hole is formed, and a liquid reservoir member for collecting and collecting the liquid descending from above and the through hole are provided. And a liquid dispersion pipe that has an inflow hole formed in a side surface thereof and that disperses the liquid that has flowed in from the liquid storage member.

In another liquid collecting and dispersing apparatus of the present invention, the liquid reservoir member is a plurality of collector lamina arranged in parallel with each other.

In still another liquid collecting and dispersing apparatus of the present invention, the liquid reservoir member is extended horizontally in the entire column body, and a chimney for raising vapor to a predetermined position is provided. It is the formed bottom plate.

In still another liquid collecting and dispersing device of the present invention, the inflow hole is formed along the axial direction of the liquid dispersing pipe. The lower end of the inflow hole is set below the upper surface of the liquid reservoir member.

[0030] In still another liquid collecting and dispersing apparatus of the present invention, the liquid dispersing pipe further includes a protrusion formed adjacent to the inflow hole for swirling the inflowing liquid.

In still another liquid collecting and dispersing device of the present invention, the liquid dispersing tube is pressed against the inner peripheral surface of the through hole by a spring force.

In still another liquid collecting and dispersing device of the present invention, the liquid reservoir member further includes a partition member which is hung downward to partition a space below the liquid reservoir member.

In still another liquid collecting and dispersing apparatus of the present invention, the lower end of the partition member is located below the lower end of the liquid dispersing pipe.

In still another liquid collecting and dispersing device of the present invention, the partition member is a plate-shaped apron.

In still another liquid collecting and dispersing device of the present invention, the partition member further forms a liquid flow region for mainly dropping the liquid and a vapor flow region for mainly raising the vapor.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a conceptual diagram of a distillation column according to the first embodiment of the present invention.

In the figure, reference numeral 61 denotes a distillation column used in a distillation apparatus as a process apparatus. For example, a distillation column 61 is provided at a substantially central position in a height direction of a column main body 12 as an outer casing of the distillation column 61. A supply port 13 is formed to which a stock solution M containing the two components A and B is supplied. In addition, component A
Has a lower boiling point than the component B. The distillation tower 61
Is the first section SC1, the second section SC2, the third section SC3, the fourth section SC4, the fifth section SC5, the sixth section SC6, the seventh section SC7, the eighth section SC8, the ninth section SC.
9, 10th section SC10 and 11th section S
Composed of C11.

Then, the second section SC2 and the third section
Enrichment section A in section SC3 and fourth section SC4
R1 is the sixth section SC6, the seventh section SC
The collecting section AR2 is formed in the seventh, eighth section SC8, ninth section SC9 and tenth section SC10,
The concentration section AR1 and the recovery section AR2 form a plurality of theoretical stages.

In the recovery section AR2, the supply port 13
The undiluted solution M supplied via the above goes down to generate vapor rich in the component A toward the upper side and generate a liquid rich in the component B toward the lower side, and the liquid rich in the component B drops. Then, the liquid rich in the component B is discharged as a bottom liquid from the bottom liquid outlet 62 at the bottom of the tower body 12. A part of the bottom liquid is sent to an evaporator (not shown), converted into steam by the evaporator, and supplied into the column body 12 from a steam inlet 14 formed below the recovery part AR2. Subsequently, the vapor is supplied to the recovery unit AR2, contacts the stock solution M while rising in the recovery section AR2, and the stock solution M
To produce a vapor rich in component A.

The vapor rich in the component A is supplied to the enrichment section AR1, rises in the enrichment section AR1, and is discharged from the vapor outlet 15 at the top of the tower body 12. Subsequently, the vapor enriched in the component A is sent to a condenser (not shown), condensed in the condenser, becomes a liquid enriched in the component A, and is discharged as a distillate.

Further, in order to enhance the separation performance, which represents the process performance of the distillation column 61, a part of the distillate is part of the concentration section A.
Refluxed to R1 as a reflux liquid. Therefore, a reflux liquid inlet 16 is formed above the concentrating unit AR1, and the reflux liquid is supplied to the concentrating unit AR1 via the reflux liquid inlet 16. Along with that, the component A that rises in the concentration part AR1
The rich vapor and the liquid rich in component A are contacted,
The concentration of component A is increased. The distillation column 61, the evaporator, the condenser and the like constitute a distillation apparatus.

By the way, in the distillation column 61 having the above construction, the second section SC2 and the fourth section SC2 of the concentrating section AR1 are provided.
Packings pk1 to pk5 made of ordered packing are provided in the section SC4 and the sixth section SC6, the eighth section SC8, and the tenth section SC10 of the recovery unit AR2.
Are packed in a state of being respectively supported by the support grids gr1 to gr5, and by the packings pk1 to pk5,
The first and second concentration regions AR21 and AR22 are provided in the second section SC2 and the fourth section SC4, and the first to third recovery regions AR23 to AR25 are provided in the sixth section SC6, the eighth section SC8 and the tenth section SC10.
Is formed.

In the present embodiment, the concentrating portion AR
Two packings pk1 and pk2 in 1 are 3 in the collecting part AR2.
Although the individual packings pk3 to pk5 are packed, at least one packing is required in each of the concentration section AR1 and the recovery section AR2, and the number of packings can be changed as necessary. . Further, in the present embodiment, the distillation column 61 is configured to separate the stock solution M containing the two components A and B into the components A and B, but three or more components, for example, components A to. A stock solution containing C can also be separated into components AC. In that case, the vapor rich in component A is discharged from the vapor outlet 15 at the top of the tower,
At the bottom of the column, a liquid rich in component C is discharged as a bottom liquid from the bottom liquid outlet 62, and a side cut liquid discharge port (not shown) is provided in the middle of the distillation column 61 so as to face the supply port 13. From the side cut liquid outlet, the boiling point is component A
A liquid rich in component B higher than component C and lower than component C is discharged as a side cut liquid.

By the way, in the first section SC1, in order to uniformly disperse the reflux liquid supplied through the reflux liquid inlet 16 toward the first concentration region AR21, it is opened above the first concentration region AR21. A groove type liquid dispersion device 65 is provided, and in the third section SC3, the first
In order to efficiently collect the liquid descending the concentrated region AR21 of and also to uniformly disperse the liquid toward the second concentrated region AR22, a laminar type liquid collecting and dispersing device 66 is provided above the second concentrated region AR22. It is arranged.

Further, in the fifth section SC5, the liquid descending in the second concentrated area AR22 is efficiently collected,
And, together with the stock solution M supplied through the supply port 13, the first
In order to uniformly disperse toward the collection area AR23 of
A laminar type liquid collecting and dispersing device 67 is disposed above the first recovery area AR23, and in the seventh section SC7, the liquid that descends in the first recovery area AR23 is efficiently collected and the second recovery is performed. In order to uniformly disperse toward the area AR24, above the second collection area AR24,
A chimney tray type liquid collecting and dispersing device 68 is provided, and
In the section SC9, the liquid that descends in the second recovery area AR24 is efficiently collected, and the third recovery area A
In order to uniformly disperse toward R25, a laminar type liquid collecting and dispersing device 69 is provided above the third recovery area AR25.
Is provided.

Further, in order to further uniformly disperse the liquid dispersed by the liquid collecting and dispersing devices 66, 67 and 69, a regular packing of about 2 elements is provided at the lower end of each liquid collecting and dispersing device 66, 67 and 69. Packing pk1 for dispersion consisting of
1 to pk13 are provided. The packings pk11 to pk1
For No. 3, depending on each process system, it is possible to use a coarser one than the packing materials pk1 to pk5 or one having the same roughness. For example, when packings pk1 to pk5 are wire mesh type (for example, “BX Packing” manufactured by Sumitomo Heavy Industries, Ltd.), packings pk
A thin plate type (for example, “Merapack 250Y” manufactured by Sumitomo Heavy Industries, Ltd.) can be used as 11 to pk13.

Next, the liquid dispersion device 65 will be described.

The liquid dispersion device 65 is connected to the reflux liquid inlet 16 and is extended toward the center of the tower main body 12 in the discharge pipe 70. The discharge pipe 70 is extended horizontally just below the tip of the discharge pipe 70. The upper end is opened to the atmosphere, the liquid discharged from the discharge pipe 70 is stored, and the first distribution groove 72 that distributes in the radial direction, and extends horizontally directly below the first distribution groove 72. And the upper end is opened so that the liquid in the first distribution groove 72 is
A plurality of second distributions in the direction perpendicular to the distribution groove 72 of
The distribution groove 73 is provided. A plurality of dispersion ports (not shown) for ejecting the liquid are formed in the second distribution groove 73. Therefore, the reflux liquid supplied through the reflux liquid inlet 16 is stored as a liquid in the first distribution groove 72 and is dispersed through the second distribution groove 73.

By the way, since the reflux liquid supplied to the reflux liquid inlet 16 is a part of the distillate liquid formed by condensing the vapor rich in the component A, almost no impurities are contained. Therefore, the dispersion port can be formed by a hole (bottom hole) formed in the bottom of the second distribution groove 73.

In the first section SC1, a chimney tray type liquid collecting and dispersing device similar to the liquid collecting and dispersing device 68 is provided in place of the open groove type liquid dispersing device 65, or a tubular type liquid collecting device. The device can be arranged.

Next, the liquid collecting and dispersing device 67 will be described.

FIG. 5 is a sectional view of a laminar type liquid collecting and dispersing device according to the first embodiment of the present invention, and FIG. 6 is a partial plan view of the laminar type liquid collecting and dispersing device according to the first embodiment of the present invention. FIG. 7 and FIG. 7 are cross-sectional views showing the main part of the laminar type liquid collecting and dispersing device according to the first embodiment of the present invention.

In the figure, 67 is a laminar type liquid collecting and dispersing device, and the liquid collecting and dispersing device 67 is a collector box 55 which forms a liquid groove 71 along the inner circumference of the tower body 12 and the collector box 55. The laminar support 56 is provided between the inner peripheral walls 77, and a plurality of collector laminas 74 to 76 as liquid reservoir members are arranged in parallel along the laminar support 56 at a predetermined pitch. Moreover, each collector lamina 74-76 is made to extend in a horizontal direction.
Then, the liquid groove 71 and each collector lamina 74 to 76.
Collects and collects the liquid that has descended from above.

Each collector lamina 74 to 76 is provided with a bent portion 78 at the upper end, an inclined portion 79 at the center and a groove portion 81 at the lower end, and the collector lamina 74 has another collector lamina 75,
The sloped portion 79 is shorter than 76, and therefore the bent portion 7
Position 8 is low. In addition, the collector lamina 76 in the center is
Two inclined portions 79 and two bent portions 78 are provided for one groove portion 81, and the two inclined portions 79 are inclined toward the sides away from the center of the tower body 12. The collector laminas 75 are arranged on both sides of the collector lamina 76, for example, 7 pieces each, and each collector laminar 74 is formed.
Are arranged on both sides of the collector lamina 75, for example, one each, and both are inclined toward the side away from the center of the tower body 12. Moreover, the tip of each bent portion 78 is overlapped with the groove portion 81 of the adjacent collector lamina so that most of the descending liquid hits the inclined portion 79. A plurality of through holes (punch holes) are formed at a predetermined pitch in the liquid groove 71 and the bottom wall b of each groove portion 81, and a cylindrical liquid dispersion pipe 82 is disposed through the through holes. And forms a drip point for the liquid. Further, on the side surface of each liquid dispersion pipe 82, one or more inflow holes 83 extending in the axial direction, which are a plurality of notch weirs in the present embodiment, are formed. And ...
The liquid collected in the groove portion 81 flows into the liquid dispersion pipe 82 through the inflow hole 83 and is dispersed by the liquid dispersion pipe 82.

Both ends of each groove 81 are provided with a liquid groove 71.
The excess liquid is sent to the liquid groove 71 from both ends of the groove portion 81. A supply port 13 (FIG. 1) connected to the tower body 12 is opened at a predetermined position in the liquid groove 71.

Therefore, the liquid descending in the second concentrated area AR22 is received by the groove 81 or hits the inclined portion 79, and then flows along the inclined portion 79, and the groove 81 is formed.
After receiving or not, most of the liquid dispersion tubes 82
Dispersed by. In addition, the remaining liquid is the groove 8
1 is moved horizontally in 1 and sent to the liquid groove 71,
After being mixed with the stock solution M supplied from the supply port 13 by a predetermined mixing means, the stock solution M is dispersed by each liquid dispersion tube 82.

By the way, in order to secure a predetermined amount of liquid dispersed by the liquid dispersion pipe 82, weirs of a predetermined height are formed at both ends of the groove 81, and a predetermined depth, that is, , A liquid pool with a liquid depth is formed. The liquid depth is determined by the operating conditions of the tower body 12
It is set in correspondence with the amount of liquid that drops in 2; that is, the maximum value (hereinafter referred to as "maximum liquid amount") and the minimum value (hereinafter referred to as "minimum liquid amount") of the amount of dropped liquid. in this case,
Since the lower end of the inflow hole 83 is set below the bottom wall b,
Even if the liquid depth is reduced and the amount of the liquid retained in the liquid pool is reduced, the liquid can be sufficiently flown into the liquid dispersion pipe 82.

Then, the liquid dispersed by the liquid dispersion pipe 82 is sent to the filling material pk12, and the filling material pk1.
After being more evenly dispersed by 2, the packing material p
sent to k3.

On the other hand, the vapor that has risen in the packings pk3 and pk12 passes through the gaps between the collector laminas 74 to 76 of the liquid collecting and dispersing device 67, and leaves the center of the tower body 12 along the inclined portion 79. It is tilted to the side and rises. At this time, since the vapor is smoothly raised along the inclined portion 79, the pressure loss value ΔP due to the liquid collecting and dispersing device 67.
Is small enough to be almost ignored. Therefore, the steam flow is not biased.

As described above, since the liquid and vapor flows are not biased, the liquid and vapor can be sufficiently brought into contact with each other in the second concentration region AR22 and the first recovery region AR23.

Further, since the liquid collecting and dispersing device 67 has a function of a liquid collecting device for collecting the liquid and a function of a liquid dispersing device for dispersing the liquid, the size of the liquid collecting and dispersing device 67 in the height direction should be reduced. You can As a result, the distillation tower 61
The size in the height direction of the column can be reduced, and the distillation column 61 can be downsized.

Further, even in the case of a process system in which a large amount of liquid such as the stock solution M, the reflux solution, and the side cut solution flows in and out in the middle part of the distillation column 61, it is not necessary to dispose a liquid collecting device and a liquid dispersing device. The distillation column 61 can be downsized.

Further, since the amount of liquid retained in the liquid collecting and dispersing device 67 can be reduced, the separation performance of the distillation column 61 can be improved. Since the time delay does not occur with respect to the fluctuation of the load of the distillation column 61 and the fluctuation of the composition of the stock solution M, the stability of the operation of the distillation column 61 can be improved.

Next, the liquid collecting and dispersing devices 66 and 69 will be described. Since the liquid collecting and dispersing devices 66 and 69 have the same structure, only the liquid collecting and dispersing device 66 will be described.

FIG. 8 is a sectional view showing a main part of another laminar type liquid collecting and dispersing device according to the first embodiment of the present invention.

In the figure, reference numeral 66 denotes a laminar type liquid collecting and dispersing device. The liquid collecting and dispersing device 66 includes a collector box 85 and a collector box 85 which form a liquid groove 84 along the inner circumference of the tower body 12. It comprises a laminar support (not shown) installed at the same height position, and a plurality of collector laminas 86 as liquid reservoir members arranged in parallel with each other at a predetermined pitch along the laminar support.

A plurality of through holes (punch holes) are formed at a predetermined pitch in the bottom wall b of the groove 87 of the collector box 85 and each collector lamina 86, and the through holes are penetrated to form a cylindrical shape. A liquid dispersion pipe 82 is provided. Also,
On the side surface of each liquid dispersion pipe 82, one or more axially extending inflow holes 83 that form a plurality of notch weirs in the present embodiment are formed.

In this case, in the liquid collecting and dispersing device 66,
Since the liquid that has descended from the first concentration area AR21 (FIG. 1) and the stock solution M cannot be mixed, it is not necessary to send the liquid received by the groove 87 to the collector box 85. Therefore, the collector box 85 and the collector lamina 86 are placed at the same height. Note that pk11 is a filling material.

Next, the liquid dispersion pipe 82 will be described.

FIG. 9 is a view showing a mounting state of the liquid dispersion pipe according to the first embodiment of the present invention, FIG. 10 is a sectional view of the liquid dispersion pipe according to the first embodiment of the present invention, and FIG. 1st figure which shows the flow of the liquid in the liquid dispersion pipe in 1st Embodiment of the invention, FIG. 12 is 2nd figure which shows the flow of the liquid in the liquid dispersion pipe in the 1st Embodiment of this invention. is there.

In the figure, reference numeral 82 denotes a liquid dispersion pipe, and the liquid dispersion pipe 82 has its upper half portion upward from the liquid grooves 71 (FIG. 7), 84 (FIG. 8) and the bottom walls b of the groove portions 81, 87. The lower half portion is disposed so as to project toward the lower portion, penetrate the through hole 91 formed in the bottom wall b, and project downward. The liquid dispersion pipe 82 has an inflow hole 83, and the liquid is flown into the liquid dispersion pipe 82 through the inflow hole 83 to be dispersed. The liquid dispersion tube 82 is formed by pressing a thin plate having a rectangular shape in advance, bending it into a sleeve shape so that the cross section becomes circular, and forming slits SL by abutting both ends of the thin plate. It

When the liquid dispersion pipe 82 is inserted into the through hole 91 with the slit SL being slightly narrowed, the liquid dispersion pipe 82 is expanded by the spring force. Therefore, the press hole tolerance of the through hole 91 is absorbed and the liquid dispersion pipe 82
Not only can be inserted, but the liquid dispersion pipe 82 is pressed against the inner peripheral surface of the through hole 91 by the spring force,
Since they are brought into close contact with each other, the liquid dispersion tube 82 can be attached in a good state without requiring any other fixing means.

With the formation of the inflow hole 83, in the upper half of the liquid dispersion pipe 82, radially inward, and in the same direction in the circumferential direction of the liquid dispersion pipe 82, Cut-and-raised portion 8 as a protruding portion for swirling the inflowing liquid
8 is formed adjacent to the inflow hole 83. Therefore,
As shown in FIG. 11, the liquid is introduced tangentially through the inflow hole 83, and as shown in FIG. 12, the liquid is spirally wound along the inner peripheral surface of the liquid dispersion pipe 82. And is swirled to form a swirling flow.

An annular protrusion 92 is formed on the upper surface of the bottom wall b along the through holes 91.

Further, projections 93 are formed outward in the radial direction at three locations in the circumferential direction at the substantially center of the liquid dispersion tube 82 in the axial direction. As a result, the projection 93 hits the upper end of the projection 92 when the liquid dispersion pipe 82 is inserted into the through hole 91, and prevents the liquid dispersion pipe 82 from sliding down in the through hole 91. Further, a plurality of notches may be formed at the lower end of the liquid dispersion pipe 82, if necessary.

In this way, the cut and raised portion 88 is formed in the liquid dispersion pipe 82.
Is formed and the liquid is tangentially flown in through the inflow hole 83, so that a thin liquid film is uniformly and stably formed along the inner peripheral surface of the liquid dispersion pipe 82. No, even when the amount of liquid is small, such as when turning down,
A liquid film can be formed on the entire inner peripheral surface of the liquid dispersion pipe 82, and a dry surface is not formed.

Therefore, it is possible to prevent uneven flow at each drip point, and it is possible to uniformly and stably disperse the liquid in the lower packings pk11 (FIG. 1) to pk13. Further, since a thin liquid film is formed along the inner peripheral surface of the liquid dispersion pipe 82, the amount of liquid retained in the liquid collection / dispersion devices 66, 67, 69 can be reduced. Therefore, the separation performance of the distillation column 61 can be improved. Since the time delay does not occur with respect to the fluctuation of the load of the distillation column 61 and the fluctuation of the composition of the stock solution M, the stability of the operation of the distillation column 61 can be improved.

Further, the inflow hole 83 is formed in a slit shape along the axial direction of the liquid dispersion pipe 82, and the lower end is slightly above the lower surface of the projection 92 and the bottom wall b and slightly above the upper surface. Since it is formed so as to be located at the lower side, it is possible to prevent the inflow hole 83 from being blocked by the impurities contained in the liquid. Moreover, since the inflow hole 83 is not blocked during the passage of a liquid with a large amount of dirt or during the switching operation of various kinds of stock solutions, the distillation column 6
The maintenance and management of 1 can be simplified. In addition, when a liquid with a small amount of dirt passes through, a long hole-shaped inflow hole 83
Instead of this, a triangular or circular inflow hole can be used.

In the liquid collecting and dispersing devices 66, 67 and 69, since the liquid collecting device and the liquid dispersing device are integrated,
The amount of liquid retained in the liquid collecting and dispersing devices 66, 67, 69,
That is, the liquid retention amount can be reduced. Therefore, it is possible to make the liquid uniform in terms of hydrodynamics.

Further, since the liquid collecting device and the liquid dispersing device are integrated, it is not necessary to convert the liquid flow from the vertical direction to the horizontal direction. Therefore, the outflow rate of the liquid discharged from the liquid dispersion pipe 82 does not vary, so that the liquid can be uniformly dispersed and maldistribution can be prevented.
As a result, the separation performance of the distillation column 61 can be improved.

The vapor mixed in the descending liquid is
Since the liquid is separated from the liquid when forming the swirling flow and is discharged from the opening at the upper end of the liquid dispersion pipe 82, it does not hinder the uniform dispersion of the liquid.

Further, when the projection 92 is removed, in that case, after the operation of the tower body 12 is stopped, the liquid does not accumulate on the bottom wall b, so that impurities are deposited on the bottom wall b ( Want)
Can be prevented from stacking.

Next, the liquid collecting and dispersing device 68 will be described.

FIG. 13 is a sectional view of the chimney tray type liquid collecting and dispersing device according to the first embodiment of the present invention, and FIG. 14 shows the chimney tray type liquid collecting and dispersing device according to the first embodiment of the present invention. It is a top view.

In the figure, 68 is a chimney tray type liquid collecting and dispersing device, and the liquid collecting and dispersing device 68 is a tower main body 12.
A bottom plate 94, which is disposed so as to extend horizontally in the inside and collects and collects the liquid that has descended from above, is formed at a predetermined position on the bottom plate 94 to raise the vapor. A chimney 97 which is raised upward from a plurality of steam inlets 95 and has a steam outlet 96 at the upper end, and above each chimney 97,
The chimney 97 is provided with a cap 98 arranged at a predetermined gap from the upper end of the chimney 97, and a cylindrical liquid dispersion tube 82 arranged at a predetermined position on the bottom plate 94 at a predetermined pitch.

Then, the liquid dispersion pipe 82 has the bottom plate 94.
The plurality of through holes 91 (FIG. 9) formed in the above are provided so as to penetrate therethrough to form drip points for the liquid. In addition, one or more axially extending side surfaces of each liquid dispersion pipe 82,
In the present embodiment, not-shown inflow holes as a plurality of notch weirs are formed.

By the way, each of the liquid collecting and dispersing devices 66 to 69
In dispersing the liquid from each of the liquid dispersion tubes 82, the fillers pk2 (FIG. 1) to p are added to the dispersed liquid.
When the effect of the vapor rising above k5 and pk11 to pk13 is different for each liquid dispersion pipe 82, a nonuniform flow may occur in the liquid and maldistribution may occur.

For example, as in the laminar type liquid collecting and dispersing device 67 shown in FIG. 7, each collector lamina 74 has a liquid groove 7.
The position of the lower end of the liquid dispersion pipe 82 attached to the bottom wall b of the groove 81 and the position of the lower end of the liquid dispersion pipe 82 attached to the bottom wall b of the liquid groove 71 If different, an auxiliary filling material pk12 is arranged radially inward of the liquid groove 71 above the filling material pk3, and the lower end of the liquid dispersion pipe 82 attached to the bottom wall b of the groove portion 81 and the filling material. pk12 and the distance between the lower end of the liquid dispersion pipe 82 attached to the bottom wall b of the liquid groove 71 and the filling material pk3 are equalized, and the liquid dispersed from each liquid dispersion pipe 82. In addition, the effect of rising steam is equalized.

However, in this case, since it is necessary to dispose packing materials pk12 having different diameters on the packing material pk3, not only the work is troublesome, but also the cost of the distillation column 61 becomes high.

Further, the lower end of the liquid dispersion pipe 82 and the filling material pk1
2 and the lower end of the liquid dispersion tube 82 and the filling material p.
Even if the distance to k3 is equal, when the rising vapor crosses each of the dispersed liquids, the liquids are scattered to cause a drift in the liquids, resulting in maldistribution.

Therefore, a second embodiment of the present invention will be described in which the influence of rising vapor on the liquid dispersed from each liquid dispersion pipe 82 can be equalized.

FIG. 15 is a sectional view of a liquid collecting and dispersing device according to the second embodiment of the present invention, and FIG. 16 is a sectional view showing a main part of the liquid collecting and dispersing device according to the second embodiment of the present invention. 1
FIG. 7 is a diagram showing a lower edge of the apron according to the second embodiment of the present invention.

In the figure, 167 is a liquid collecting and dispersing device, and the liquid collecting and dispersing device 167 has a collector box 55 forming a liquid groove 71 along the inner circumference of the tower body 12, and an inner peripheral wall 77 of the collector box 55. It comprises a laminar support (not shown) provided between the laminar supports, and a plurality of collector laminas 174 to 176 as liquid reservoir members arranged in parallel with each other at a predetermined pitch along the laminar support. Also,
Each collector lamina 174-176 is horizontally extended. Then, the liquid groove 71 and each collector lamina 1
74 to 176 collect and store the liquid that has descended from above.

Each collector lamina 174 to 176 has a bent portion 78 at the upper end, an inclined portion 79 at the center, and a groove portion 81 at the lower end.
Each of the groove portions 81 is provided as a partitioning member that is attached to the wall of the groove portion 81 on the side away from the center of the tower body 12 so as to extend in the horizontal direction and hang downward. Plate-shaped apron 101
Equipped with. Each apron 101 corresponds to each collector lamina 1
A space below 74 to 176 is defined, the lower end of each apron 101 is located below the lower end of the liquid dispersion pipe 82, and is flattened in the horizontal direction, and
The distances Lp to the filling material pk21 are equal to each other, and 0 ≦
Lp ≦ 50 [mm].

In the distillation column 61 (FIG. 1) in which a plurality of packings are stacked and packed, a tolerance of about 1 [mm] per packing occurs. Therefore, the distance Lp is set so that the total tolerance obtained by multiplying the tolerance by the number of stacked layers of the filler is sufficiently absorbed.

The collector lamina 174 has a shorter inclined portion 79 than the other collector lamina 175, 176, and therefore the bent portion 78 is located at a low position. In addition, the collector lamina 176 at the center has an inclined portion 79 with respect to one groove portion 81,
Two bent portions 78 and two aprons 101 are provided, and the two inclined portions 79 are inclined from the center of the tower body 12 toward the sides away from each other. A plurality of collector laminas 175 are provided on both sides of the collector lamina 176 (in the figure, one collector laminar 1 is provided for convenience).
75 is shown. ), Each collector lamina 1
For example, one or more 74 are disposed on both sides of the collector lamina 175.

A liquid dispersion pipe 82 is attached to each groove 81, and the liquid collected by the collector lamina 174 to 176 flows from the liquid dispersion pipe 82 to the filling material pk.
Dispersed towards 21.

In this case, the flow passage 102 is formed between the inner peripheral wall 77 of the collector box 55 and the apron 101, and the flow passage 103 is formed between the aprons 101. A vapor flow region for mainly raising vapor is provided in a lower portion between the adjacent groove portions 81 in each of the flow passages 102 and 103, and a portion below the liquid dispersion pipe 82 in each of the flow passages 103. There is formed a liquid flow area mainly for dropping the liquid.

Therefore, since the liquid flow region and the vapor flow region can be separated from each other, rising vapor rarely crosses the dispersed liquid. As a result, it is possible to prevent the liquid from scattering, prevent the liquid from being unbalanced, and prevent the maldistribution.

Further, even if the vapor enters the liquid dispersion pipe 82, the vapor mixed in the descending liquid is separated from the liquid when the liquid forms a swirl flow, and the opening at the upper end of the liquid dispersion pipe 82. It does not interfere with the uniform dispersion of the liquid.

In the present embodiment, the apron 101 is attached to the wall of each groove 81 on the side away from the center of the tower body 12.
It can also be attached to the walls on both sides of each groove 81. In that case, in each flow path 103, since the liquid flow region and the vapor flow region can be partitioned by the apron 101, the rising vapor is less likely to cross the dispersed liquid. As a result, it is possible to further prevent the liquid from scattering, to further prevent the liquid from having a nonuniform flow, and to further prevent the maldistribution.

By the way, the cut and raised portion 88 (FIG. 10).
Is formed at one or more locations in the circumferential direction of the liquid dispersion tube 82, but the number of cut-and-raised portions 88 is large (for example, four), and the liquid that descends in the liquid dispersion tube 82. When there is a large amount of each apron 101, it is necessary to vertically extend each apron 101 downward to secure a sufficient liquid flow region as in the present embodiment. However, when the number of cut-and-raised portions 88 is small (for example, two or one) and the amount of the liquid descending in the liquid dispersion pipe 82 is small, the liquid is scattered by the vapor, so that the liquid flow region is reduced. The necessity to secure enough becomes high. Therefore, the vapor flow region can be widened and the liquid flow region can be narrowed accordingly, depending on the distillation conditions.

Next, the third aspect of the present invention in which the vapor flow region is widened
The embodiment will be described. In addition, about the thing which has the same structure as 2nd Embodiment, the description is abbreviate | omitted by giving the same code | symbol.

FIG. 18 is a sectional view showing a main part of a liquid collecting and dispersing device according to the third embodiment of the present invention.

In this case, the wall of the collector 81 in each groove 81 of the collector lamina 175, which is separated from the center of the tower body 12 (FIG. 15), extends horizontally and hangs downward. A plate-shaped apron 111 as a partition member is attached. Each apron 111
Has an upper half 112 fixed to the groove 81 and a lower half 113.
Are slightly moved to the liquid dispersion pipe 82 side.

Therefore, the vapor flow region can be widened and the liquid flow region can be narrowed accordingly, depending on the distillation conditions.

FIG. 19 is a sectional view showing a main part of another liquid collecting and dispersing device according to the third embodiment of the present invention.

In this case, on the side of the bottom wall b of each groove 81 of each collector lamina 175 away from the center of the tower body 12 (FIG. 15), it is extended horizontally and hangs downward. And a plate-shaped apron 1 in which an "L" -shaped portion is formed at the end as a partition member
15 is attached. Each apron 115 has an upper end attached to the bottom wall b, and extends from a portion close to the liquid dispersion pipe 82 side to a lower end.

Therefore, the vapor flow region can be widened and the liquid flow region can be narrowed correspondingly according to the distillation conditions.

Next, a fourth embodiment of the present invention will be described.

FIG. 20 is a diagram showing the lower edge of the apron in the fourth embodiment of the present invention, and FIG. 21 is a diagram showing the lower edge of another apron in the fourth embodiment of the present invention.

In FIG. 20, 121 is a plate-shaped apron as a partition member, and 122 is a notch as a liquid dispersion equalizing portion formed at the lower end of the apron 121. Further, in FIG. 21, 123 is an apron as a partition member, and 124 is a horizontal bellows as a liquid dispersion equalizing portion formed in the lower half of the apron 123.

The notch 122 further homogenizes the liquid dispersed from the liquid dispersion pipe 82, and the filling pk
21 for supplying. Also, the horizontal bellows 12
4 is for preventing the liquid dispersed from the liquid dispersion pipe 82 from jumping from the apron.

[0115]

[Example 1]

Tower diameter ID 1450 [mm] Tower cross section 1.65 [m²] Minimum liquid volume 6.8 [m³/ Hr] (4.1 [m³/ M²
・ Hr] equivalent) Maximum liquid volume 12.6 [m³/ Hr] (7.6 [m³/ M
²・ Hr] equivalent) By the way, in the distillation tower 61, the width is 125 [mm] ×
If the vertical range of 180 [mm] is defined as the position range under the droplet,
In the range of the position below the droplet, one of the outer diameter d of 25.4 [mm]
When the liquid dispersion pipe 82 is provided, the area of the position below the droplet is
About 230 cm ²], And the cross-sectional area of the distillation column 61 is 1.
65 × 10000 [cm²], So N The liquid dispersion pipe 82 is required.

At this time, the entire wet side length L of the tower main body 12
w is Therefore, the minimum liquid height Dmin is Therefore, the minimum liquid depth is preferably 10 mm.

The maximum liquid height Dmax is Therefore, the maximum liquid depth is preferably 16 [mm].

In the case of the conventional liquid dispersion device 23 shown in FIG.
In this case, there are 56 dispersion ports with a diameter of 7.8 mm and a diameter of 6.2.
Sixteen [mm] dispersion ports are formed. [Example 2] Tower diameter ID 1110 [mm] Tower cross section 0.95 [m²] Minimum liquid volume 1.235 [m³/ Hr] (1.3 [m³/
m²・ Hr] equivalent) Maximum liquid volume 2.28 [m³/ Hr] (2.4 [m³/ M
²・ Hr] equivalent) By the way, in the distillation tower 61, the width is 125 [mm] ×
If the vertical range of 180 [mm] is defined as the position range under the droplet,
In the range of the position below the droplet, one of the outer diameter d of 25.4 [mm]
When the liquid dispersion pipe 82 is provided, the area of the position below the droplet is
About 230 cm ²], And the cross-sectional area of the distillation column 61 is 0.
95 × 10000 [cm²], So N The liquid dispersion pipe 82 is required.

At this time, the entire wet side length L of the tower main body 12
w is Therefore, the minimum liquid height Dmin is Therefore, the minimum liquid depth is preferably 7 mm.

The maximum liquid height Dmax is Therefore, the maximum liquid depth is preferably 12 [mm].

In each of the above-mentioned embodiments, the distillation column in which the inside of the distillation column is not divided into the feed side and the side cut side has been described, but the present invention is a combined distillation in which the inside of the distillation column is divided by intermediate partitions. It can also be applied to towers.

Further, in each of the above-mentioned embodiments, the distillation apparatus is explained as the process apparatus, but the present invention can be applied to other process apparatuses utilizing the process technology such as absorption, extraction and mixing. . For example, in absorption operation process equipment, it absorbs gases such as nitrogen oxides and sulfur oxides, and in waste liquid treatment process equipment,
Treatment of waste liquid such as ammonia and cyan, separation of isomers by fractional extraction in liquid-liquid process equipment, removal of impurities in products, dehydration purification of aqueous solution, extraction of main component in solvent, recovery of solvent, waste water It is possible to perform extraction of components inside, recovery of phenol from wastewater / process fluid, recovery of acetic acid in aqueous solution, removal of organic substances and inorganic substances in treatment liquid, extraction of metal in solution, and the like. Then, each component can be mixed and stirred in a mixing / stirring process device. As described above, the present invention can be applied to various process apparatuses in which each component is distributed.

Further, in each of the above-mentioned embodiments, the liquid collecting and dispersing device for efficiently collecting and uniformly dispersing the liquid moving downward in the distillation column 61 is explained. However, various external liquids, It can also be applied to an apparatus in which a liquid phase and a gas phase are brought into uniform contact when a liquid such as an internal liquid is moved downward.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified within the scope of the present invention, and they are not excluded from the scope of the present invention.

[0125]

As described above in detail, according to the present invention, in the liquid collecting and dispersing device, the through hole is formed, and the liquid reservoir member for collecting and collecting the liquid descending from above, and the through hole. And a liquid dispersion pipe that has an inflow hole formed in its side surface and that disperses the liquid that has flowed in from the liquid reservoir member.

In this case, since the through hole is formed in the liquid reservoir member for collecting and collecting the liquid that has descended from above, and the liquid dispersion pipe is provided through the through hole, the height of the liquid collecting and dispersing device is increased. The dimension in the direction can be reduced. As a result, the size of the process device in the height direction can be reduced, and the process device can be downsized.

Even in the case of a process system in which a liquid such as a stock solution, a reflux solution, a side cut solution, etc., flows in and out in the middle part of the process apparatus, it is not necessary to dispose a liquid collecting apparatus and a liquid dispersing apparatus. Can be miniaturized.

Further, since the amount of the liquid retained in the liquid collecting and dispersing device can be reduced, the process performance can be improved. And fluctuations in the load on the process equipment,
Since there is no time delay with respect to the fluctuation of the composition of the stock solution, it is possible to improve the operation stability of the process device.

In another liquid collecting and dispersing apparatus of the present invention, the liquid reservoir member is a plurality of collector lamina arranged in parallel with each other.

In this case, since the flow of the liquid and the vapor is not biased, the liquid and the vapor can be sufficiently brought into contact with each other.

In still another liquid collecting and dispersing device of the present invention, the inflow hole is formed along the axial direction of the liquid dispersing pipe. The lower end of the inflow hole is set below the upper surface of the liquid reservoir member.

In this case, since the lower end of the inflow hole is set below the upper surface of the liquid reservoir member, it is possible to prevent the inflow hole from being blocked by impurities contained in the liquid. Moreover, even when a liquid with a large amount of dirt passes through,
Since the inflow holes are not blocked even during the switching operation of the various kinds of stock solutions, the maintenance and management of the process equipment can be simplified.

In still another liquid collecting and dispersing apparatus of the present invention, the liquid dispersing pipe further includes a protrusion formed adjacent to the inflow hole for swirling the inflowing liquid.

In this case, not only is a thin liquid film uniformly and stably formed along the inner peripheral surface of the liquid dispersion pipe, but even if the amount of liquid is small such as during turndown. ,
A liquid film can be formed on the entire inner peripheral surface of the liquid dispersion pipe,
No dry surface is formed.

Therefore, the liquid can be uniformly and stably dispersed in the lower filling material.

Further, since a thin liquid film is formed along the inner peripheral surface of the liquid dispersion pipe, the amount of liquid retained in the liquid collection and dispersion device can be reduced. Therefore, the process performance can be improved. Further, since there is no time delay with respect to changes in the load of the process device and changes in the composition of the stock solution, it is possible to improve the operational stability of the process device.

In still another liquid collecting and dispersing device of the present invention, the liquid dispersing pipe is pressed against the inner peripheral surface of the through hole by a spring force.

In this case, the liquid dispersion tube can be attached in a good condition without the need for other fixing means.

[0139] In still another liquid collecting and dispersing device of the present invention, the liquid reservoir member further includes a partition member that is hung downward to partition a space below the liquid reservoir member.

In this case, since the liquid reservoir member is provided with a partition member which is hung downward and partitions the space below the liquid reservoir member, the rising vapor does not cross the dispersed liquid. . As a result, it is possible to prevent the liquid from scattering, prevent the liquid from being unbalanced, and prevent the maldistribution.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a distillation column according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram of a conventional distillation column.

FIG. 3 is a sectional view showing a main part of another conventional distillation column.

FIG. 4 is a cross-sectional view showing a main part of still another conventional distillation column.

FIG. 5 is a cross-sectional view of a laminar type liquid collecting and dispersing device according to the first embodiment of the present invention.

FIG. 6 is a partial plan view of a laminar type liquid collecting and dispersing device according to the first embodiment of the present invention.

FIG. 7 is a cross-sectional view showing the main parts of a laminar type liquid collecting and dispersing device according to the first embodiment of the present invention.

FIG. 8 is a sectional view showing a main part of another laminar type liquid collecting and dispersing device according to the first embodiment of the present invention.

FIG. 9 is a diagram showing a mounted state of the liquid dispersion tube according to the first embodiment of the present invention.

FIG. 10 is a cross-sectional view of the liquid dispersion tube according to the first embodiment of the present invention.

FIG. 11 is a first diagram showing a flow of a liquid in the liquid dispersion pipe according to the first embodiment of the present invention.

FIG. 12 is a second diagram showing a flow of liquid in the liquid dispersion pipe according to the first embodiment of the present invention.

FIG. 13 is a cross-sectional view of a chimney tray type liquid collecting and dispersing device according to the first embodiment of the present invention.

FIG. 14 is a plan view of a chimney tray type liquid collecting and dispersing device according to the first embodiment of the present invention.

FIG. 15 is a cross-sectional view of a liquid collecting and dispersing device according to a second embodiment of the present invention.

FIG. 16 is a cross-sectional view showing the main parts of a liquid collecting and dispersing device according to a second embodiment of the present invention.

FIG. 17 is a diagram showing a lower edge of the apron according to the second embodiment of the present invention.

FIG. 18 is a cross-sectional view showing the main parts of a liquid collecting and dispersing device according to a third embodiment of the present invention.

FIG. 19 is a cross-sectional view showing the main parts of another liquid collecting and dispersing device according to the third embodiment of the present invention.

FIG. 20 is a diagram showing a lower edge of an apron according to a fourth embodiment of the present invention.

FIG. 21 is a diagram showing a lower edge of another apron according to the fourth embodiment of the present invention.

[Explanation of symbols]

12 tower body 66-69,167 Liquid collecting and dispersing device 74-76, 86, 174-176 Collector Lamina 82 Liquid Dispersion Tube 83 Inflow hole 88 Cut and raised part 91 through hole 94 Bottom plate 97 Chimney 101, 111, 115, 121, 123 Aprons

Claims (10)

[Claims] 1. A through hole is formed, and a liquid reservoir member for collecting and collecting liquid that has descended from above, and (b) a through hole provided through the through hole, and an inflow hole being formed on a side surface. ,
A liquid collecting / dispersing device, comprising: a liquid dispersing pipe for dispersing the liquid flowing from the liquid reservoir member. 2. The liquid collecting and dispersing device according to claim 1, wherein the liquid reservoir member is a plurality of collector laminas arranged in parallel with each other. 3. The liquid storage member is a bottom plate which extends horizontally in the entire column body and has a chimney for raising vapor at a predetermined position.
The liquid collection and dispersion device according to item 1. 4. The method according to claim 1, wherein (a) the inflow hole is formed along the axial direction of the liquid dispersion pipe, and (b) the lower end of the inflow hole is set below the upper surface of the liquid reservoir member. The liquid collection and dispersion device described. 5. The liquid collection and dispersion device according to claim 1, wherein the liquid dispersion pipe includes a protrusion formed adjacent to the inflow hole and swirling the inflowing liquid. 6. The liquid collecting and dispersing device according to claim 1, wherein the liquid dispersing pipe is pressed against the inner peripheral surface of the through hole by a spring force. 7. The liquid collecting and dispersing device according to claim 1, wherein the liquid reservoir member includes a partition member that is hung downward to partition a space below the liquid reservoir member. 8. The liquid collecting and dispersing apparatus according to claim 7, wherein the lower end of the partition member is located below the lower end of the liquid dispersing tube. 9. The liquid collecting and dispersing device according to claim 7, wherein the partition member is a plate-shaped apron. 10. The liquid collecting member according to claim 7, wherein the partition member forms a liquid flow region for mainly dropping the liquid and a vapor flow region for mainly raising the vapor. Dispersion device.