JPH0775730A - Liquid distributor for mass and/or heat exchanging column - Google Patents

Abstract

PURPOSE:To uniformly distribute and feed liquid over the whole packing material by making at least one nozzle hole in the lower part of a main pipe and installing a liquid diffusing member whose upper part is formed into a curved or bent or planar face and whose side part has the inclined or hung form below the nozzle holes. CONSTITUTION:In a liquid distributor by which liquid to be treated is distributed and fed from the upper part of the inside of a mass and/or heat exchanging column over the whole cross-sectional part of the column through distributing pipes 3, a main pipe 2 and a plurality of the distributing pipes 3 connected to the main pipe 2 are arranged. At least one nozzle hole 14 having an arbitrary form is made in the distributing pipes 3 at arbitrary positions. At least one nozzle hole 4 is made in the bottom parts of the main pipe 2. Further, a liquid diffusing member 5 whose upper part is formed into a curved or bent or planar face and whose side part has the inclined or hung form is installed below the nozzle holes 4 of the main pipe 2. As a result, liquid is uniformly distributed over the packing material in the mass and/or heat exchanging column.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a liquid distributor for a material and / or heat exchange column. The liquid distributor is for uniformly distributing a liquid on a structure, a so-called packing material, which is filled in the inside of a tower in which a liquid and a gas are brought into countercurrent contact with each other and brought into contact with each other.

[0002]

2. Description of the Related Art Conventionally, there are many kinds of liquid distributors used in a material and / or heat exchange column, and the distribution methods thereof are also various. As one method, there is a method in which a plurality of liquid distribution pipes are arranged in parallel to the cross section of the tower, and nozzle holes are opened at certain intervals in the distribution pipe. In this case, the liquid is distributed and supplied onto the filling material at intervals of the nozzles. In order to distribute the liquid to more points on the filler in such a distributor, it is conceivable to increase the number of nozzle holes. Also, in some types of distributors, a nozzle hole is placed above the distribution pipe,
It has been devised that the liquid flowing out to the upper part spreads on the upper surface of the distribution pipe and flows down along the side part of the distribution pipe. When the nozzle hole is provided in the distribution pipe in this way, the liquid can be made to flow down directly below the nozzle hole.
With respect to the other parts, there are left portions where the liquid does not sufficiently flow down, which is a factor that hinders the uniform distribution of the liquid throughout the filling material.

Further, this type of liquid distributor has a main pipe for connecting the respective distribution pipes and flowing the liquid at the stage of collecting and transferring the liquid from above to the respective distribution pipes. Conventionally, the bottom of the main pipe is usually provided with several holes for draining the residual liquid in the main pipe. It is not easy to have a function of distributing the liquid in the holes. That is, although it is possible to place many holes in the bottom of the main pipe to achieve a sufficient distribution of liquid, the main pipe normally distributes the transfer of liquid from the top of the distributor to the distribution pipe. In order to perform the function of distributing to the left and right from the central part of the vessel, because it is configured to be located in the central part of the distribution pipes arranged in the lateral direction, if many holes are opened in the bottom part of the main pipe,
The liquid easily flows down from the hole at the bottom of the main pipe, which causes a problem that the transfer to the distribution pipe is hindered. Further, when the hole of the main pipe is located at a height lower than the height of the nozzle hole of the distribution pipe, the liquid easily flows out from the nozzle hole of the main pipe. The flow path cross-sectional area of the main pipe changes greatly depending on the amount of processing liquid,
When the flow rate of the processing liquid is large, the bottom area of the main pipe must be large. In such a case, in combination with the fact that the number of holes at the bottom of the main pipe is limited to some extent as described above, in the portion directly below the main pipe, a large amount of the portion where the liquid does not flow down remains, It was difficult to achieve a sufficient and uniform distribution of the liquid, and the distribution was unavoidable.

[0004]

The present inventor has conducted extensive research in order to overcome the above-mentioned drawbacks of the prior art. As a result, in the liquid distributor configured as described above, at least one nozzle hole is provided in the lower part of the main pipe, and the upper part thereof forms a curved surface or a bent surface or a flat surface at the lower part of the nozzle hole, It has been discovered that the attachment of a liquid diffusion substrate having a sloping or depending portion morphology greatly enhances the even distribution of liquid throughout the filler.

That is, the present invention is a liquid distributor for supplying and supplying a liquid to be treated from the upper part of the inside of a substance and / or heat exchange column through a distribution pipe over the entire cross section of the column. A main pipe and a plurality of distribution pipes connected to the main pipe, each distribution pipe being provided with at least one nozzle hole of an arbitrary shape at an arbitrary position. There is at least one nozzle hole in the bottom of the main pipe,
The lower portion of the nozzle hole of the main pipe is characterized in that an upper portion thereof forms a curved surface, a curved surface or a flat surface, and a liquid diffusion base material having a shape in which the side portion is inclined or hung is attached. Liquid distributor for a substance and / or heat exchange column.

The present invention will be described below with reference to examples.

FIG. 1 is a diagram showing an embodiment of a liquid distributor according to the present invention. That is, the liquid distributor according to the present invention comprises a vertical pipe (1) arranged parallel to the tower axis, a main pipe (2) arranged parallel to the cross section of the tower, and a branch from the main pipe, and usually the main pipe. It consists of a distribution pipe (3) extending in the direction intersecting with (see Fig. 1- (a)). The liquid communication between the main pipe and the distribution pipe is performed by arranging the distribution pipe so as to penetrate the main pipe as shown in, for example, Fig. 1- (b)-(a), and the surface of the distribution pipe located inside the main pipe. Even if it is done by providing a liquid communication port (6) on the, or as shown in Fig. 1- (b)-(b), an opening (20) is provided on the side of the main pipe and the distribution pipe is connected here. You may go by doing. Nozzle holes (4) are arranged in the distribution pipe (3) at arbitrary intervals. At least one nozzle hole (4) is also arranged at the bottom of the main pipe. A liquid diffusion substrate (5) is attached to the lower part of the nozzle hole of the main pipe. This liquid diffusion substrate has a curved surface (see Fig. 1- (b)-(a)) or a curved surface (see Fig. 1- (b)-
(See (b)) or a plane (see FIG. 1- (b)-(c)), and has a surface inclined or hung down to the left and right. In this case, the upper surface may be inclined or horizontal.

It is desirable that the upper portion of the liquid diffusion substrate is separated without coming into contact with the main pipe, but it is not always necessary for the present invention to be separated. Here, a mechanism for adjusting the distance between the liquid diffusion substrate and the main pipe may be provided at the attachment portion of the liquid diffusion substrate. The upper portion of the liquid diffusion substrate is arranged so as to be located immediately below the nozzle hole of the main pipe. In practice, it is preferable that the surface of the liquid diffusion substrate has irregularities (7) that serve as liquid diffusion means (FIG. 4).
reference). Further, as the liquid diffusing means, a large number of holes (8) may be provided on the surface of the liquid diffusing substrate together with or instead of the unevenness (see FIG. 5). Further, the liquid diffusing means may be constituted by superposing the mesh base material (9) on the planar base material (see FIG. 6). Further, the groove (10) may be formed in the extending direction of the liquid diffusion substrate instead of the unevenness (see FIG. 8).

Explaining the flow of liquid, the liquid is
It flows from the vertical pipe (1) to the main pipe (2), and is branched from the main pipe (2) to the distribution pipe (3) (see FIG. 1). The branched liquid is
It flows downward from the nozzle hole (4) of the distribution pipe (3), and also flows downward from the nozzle hole (4) at the bottom of the main pipe.
The liquid flowing out from the nozzle hole at the bottom of the main pipe drops to the upper part of the liquid diffusion substrate, spreads on the surface of the liquid diffusion substrate, and flows down downward. Since the liquid diffusion substrate has the inclined surface or the horizontal surface on the upper portion thereof, the diffusing force of the flowing liquid can be increased. This is because when the liquid is made to flow from above the vertically standing plate to a point on the plate, the liquid will flow as a straight line directly below,
While it is difficult to spread on a plate, when this is performed on an inclined plate, it is similar to that the liquid diffuses and flows as the inclination approaches horizontal.

The liquid diffusion substrate may be fixed to the main pipe or may be removably attached to the main pipe. In this case, various shapes of liquid diffusion base materials described later can be used as desired. The attachment direction of the liquid diffusion substrate is arbitrary in the lower part of the main pipe, in the direction parallel to the distribution pipe (FIG. 12), in the intersecting direction (FIG. 1, etc.), or in the oblique direction.

Other embodiments include the following.

A liquid branching plate (1
1) may be provided (see FIG. 2). In this case, it is preferable that the liquid branch plates be formed one by one or several by opening in the opposite direction with the extending direction axis (12) of the liquid diffusion substrate interposed therebetween.

With this configuration, when the liquid branch plate is not provided, when the liquid flowing down from the upper surface of the liquid diffusion substrate drops from the lower end portion of the liquid diffusion substrate, if the liquid amount is large, There is a problem that the film is formed and the parts where the liquid falls down are gathered at one point, and the liquid distribution force is impaired.By adding a liquid branch plate, the liquid film is branched to the left and right, and the distribution force is improved. To do. The liquid branch plate may be provided with holes of any size.

In the liquid distributor according to the present invention, it is necessary that the liquid diffusion substrate has a curved surface or a flat surface at its upper portion, and its side portions are inclined or hung. The inclined or hanging side portions do not necessarily need to be present on both the left and right sides of the liquid diffusion substrate. That is, Fig. 2-
As shown in (b)-(a), it may be inclined or drooped on both sides, or, as shown in Fig. 2- (b)-(b), it may be slanted or drooped on only one side. It may take the form. However, in practice, it is preferable that the upper portion of the liquid diffusion base material forms a curved surface, a bent surface, or a flat surface, and the side portions thereof are inclined or hung on the left and right sides. This means that the liquid that has flowed out of the nozzle hole and dropped onto the liquid diffusion base material is distributed to the left and right in the upper part of the liquid diffusion base material and flows down, resulting in twice the distribution force as when flowing on only one side. This is because it will have. Further, the pitches of the liquid branch plates attached to the end portions of the left and right liquid diffusion substrates may be shifted from each other.

As another embodiment, a nozzle hole may be opened in the upper part of the main pipe, and a liquid may be made to flow to the upper surface of the main pipe so as to be diffused and flow down (FIG. 3). Usually, since the main pipe is formed of a box-shaped member, the upper part thereof has a flat surface. Therefore, when the configuration of this aspect is adopted, the liquid flowing out to the upper surface of the main pipe is likely to diffuse. Of. Further, in this mode, when the outflow rate of the liquid is high, the liquid may be scattered, and in such a case, a cover (13) for preventing liquid scattering is provided at a position corresponding to the nozzle hole. It is preferably provided (see FIG. 3- (b)). Further, in practice, a groove (9) for diffusing the liquid flowing out from the nozzle hole in the upper part of the main pipe may be formed on the upper surface of the main pipe (see FIG. 3- (c)).

In the liquid distributor of the present invention, the liquid diffusion base material may be composed of a sheet-shaped base material, a plate-shaped base material, or a sheet-shaped base material. It may be constructed by attaching a base material, or may be constructed by attaching a sheet-like base material to a pipe.
Further, the size, shape and arrangement of the nozzle holes are arbitrary.

By adopting the constitution of the present invention, the defect of the distribution ability in the distributor having the nozzle hole on the lower surface of the main pipe is improved by the action of the liquid diffusion substrate attached below the nozzle hole of the main pipe. .

Various aspects of the present invention will be described below.

As shown in FIG. 2, in the liquid distributor of the present invention, one or a few sheets of the liquid diffusion base material are opposed to each other at the end of the liquid diffusion base material with the directional axis of the liquid diffusion base material interposed therebetween. You may provide the liquid branch plate (11) formed toward. Further, as shown in FIG. 2- (b), the liquid diffusion substrate is
The side part may be inclined or drooped from the top to both sides (a), or the side part may be tilted or drooped from the top to one side (b).

Further, as shown in FIG. 3, nozzle holes may be formed in the upper surface of the main pipe. In this case, as shown in FIG. 3- (b), a cover (13) for preventing liquid scattering may be attached to a portion corresponding to the nozzle hole on the upper surface of the main pipe. Further, as shown in FIG. 3- (c), a groove (9) for diffusing the liquid flowing out from the nozzle hole in the upper part of the main pipe may be formed on the upper surface of the main pipe.

Further, the liquid diffusion substrate may be provided with irregularities (7) as a liquid diffusion means (FIG. 4), or a plurality of holes (8) may be formed (FIG. 5). Alternatively, the liquid diffusing means may be configured by using, as the liquid diffusing base material, a planar base material on which the mesh base material (9) is superposed (see FIG. 6). Further, as shown in FIG. 7, the liquid diffusion substrate may be provided with a sinusoidal groove (10) serving as a liquid diffusing means, or as shown in FIG. As the diffusing means, the groove (10) may be formed along the extension direction.

Further, as shown in FIG. 9, a plurality of narrow grooves (10) may be formed from the upper part to the lower part of the liquid diffusion substrate.

Further, as shown in FIG. 10, the liquid diffusion substrate may be composed of a rod-shaped substrate (14) to which a sheet-shaped substrate or plate-shaped substrate (5) is attached.

Further, as shown in FIG. 11, the liquid diffusion base material may be constituted by a pipe (15) having a sheet-like base material (5) attached thereto.

Further, as shown in FIG. 12, the liquid diffusion base material may be attached in a direction parallel to the distribution pipe, and further, as shown in FIG. It may be attached to the lower part of so as to straddle the main pipe.

[0026]

According to the liquid distributor of the present invention, the liquid can be uniformly distributed to the substance and / or the packing in the heat exchange column.

The embodiment of the present invention is as follows.

1. A liquid distributor for supplying a liquid to be treated from an upper part of the inside of a substance and / or heat exchange column through a distribution pipe over the entire cross section of the column, the main pipe being connected to the main pipe A plurality of distribution pipes each of which is provided with a nozzle hole of at least one arbitrary shape at each arbitrary position, and at least one nozzle hole at the bottom of the main pipe. A nozzle hole is formed, and a liquid diffusion base material having a curved surface, a bent surface, or a flat surface at its lower portion and a side portion inclined or hanging down is attached to the lower portion of the nozzle hole of the main pipe. And / or a liquid distributor for a heat exchange column.

2. The liquid diffusing substrate is provided with a liquid branching plate, and the liquid branching plate is formed by opening one by one or several by two in opposite directions with a direction axis of the liquid diffusing substrate extending therebetween. A liquid distributor according to the item.

3. The liquid distributor according to claim 1, wherein the upper surface of the main pipe is perforated.

4. The liquid distributor according to claim 3, wherein a cover is attached to a portion of the upper surface of the main pipe corresponding to the nozzle hole.

5. 4. The liquid distributor according to claim 3, wherein a groove for diffusing the liquid flowing out from the nozzle hole in the upper portion of the main pipe is formed on the upper surface of the main pipe.

6. The liquid distributor according to claim 1, wherein the liquid diffusion base material has irregularities formed as liquid diffusion means.

7. The liquid distributor according to claim 1, wherein the liquid diffusion substrate has a plurality of holes as liquid diffusion means.

8. The first liquid diffusion substrate is formed by stacking a mesh substrate on a sheet substrate.
A liquid distributor according to the item.

9. 2. The liquid distributor according to claim 1, wherein a sinusoidal groove is formed as a liquid diffusing means on the liquid diffusing substrate.

10. The liquid distributor according to claim 1, wherein grooves are formed in the liquid diffusion substrate along the extension direction thereof.

11. 2. The liquid distributor according to claim 1, wherein a plurality of thin grooves are formed on the surface of the liquid diffusion base material from the upper part toward the lower part.

12. The liquid distributor according to claim 1, wherein the liquid diffusion substrate is formed by attaching a sheet-shaped substrate or a plate-shaped substrate to a rod-shaped substrate.

13. The liquid distributor according to claim 1, wherein the liquid diffusion substrate is formed by attaching a sheet-shaped substrate to a pipe.

14. The liquid distributor according to the above-mentioned item 1, which has a mechanism for adjusting a distance between the liquid diffusion substrate and the main pipe.

[Brief description of drawings]

FIG. 1 is a diagram showing an aspect of a liquid distributor according to the present invention. a is a perspective view of a liquid distributor of the present invention, b is an enlarged cross-sectional view of a portion where a liquid diffusion substrate is attached to a lower portion of a main pipe, and a to c show various aspects of the liquid diffusion substrate. There is.

FIG. 2 is a diagram showing another aspect of the liquid distributor according to the present invention. a is a perspective view showing a main pipe, a liquid diffusion base material, and a liquid branching plate in such an aspect, b is an enlarged cross-sectional view of a portion where the liquid diffusion base material is attached to a lower portion of the main pipe, and a and b are respectively liquid. 3 illustrates various aspects of a diffusion substrate.

FIG. 3 is a diagram showing another aspect of the liquid distributor according to the present invention. a is a view showing a mode in which a nozzle hole is opened in the upper part of the main pipe, b is a view showing a mode in which a cover is attached to a portion corresponding to the nozzle hole in the upper part of the main pipe, c is an upper surface of the main pipe, and an upper part of the main pipe is shown. FIG. 6 is a diagram showing an aspect in which a groove for diffusing the liquid flowing out from the nozzle hole is formed.

FIG. 4 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 5 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 6 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 7 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 8 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 9 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 10 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 11 is a view showing another aspect of the liquid distributor according to the present invention.

FIG. 12 is a diagram showing another aspect of the liquid distributor according to the present invention.

FIG. 13 is a diagram showing another aspect of the liquid distributor according to the present invention.

[Explanation of symbols]

 1: Distributor vertical pipe, 2: Distributor main pipe, 3: Distribution pipe, 4: Nozzle hole, 5: Liquid diffusion base material, 11: Liquid branch plate

Claims (1)

[Claims] 1. A liquid distributor for supplying a liquid to be treated from the upper part of the inside of the substance and / or heat exchange column through a distribution pipe over the entire cross-section part of the column, the main distributor being a main pipe. ,
And a plurality of distribution pipes connected to the main pipe,
Each of the distribution pipes has at least one nozzle hole having an arbitrary shape at an arbitrary position, and at least one nozzle hole is formed at the bottom of the main pipe. A substance and / or heat exchange characterized in that a liquid diffusion substrate having a curved or bent surface or a flat surface at its upper part and having a sloped or hanging side surface is attached to the lower part. Liquid distributor for towers.