JPH06101990A - Liquid distributor for substance and/or heat exchanging tower - Google Patents

Abstract

PURPOSE:To uniformly distribute liquid to a filler to be filled in a tower in the tower of a liquid distributor in which liquid and gas counterflow in contact with one another. CONSTITUTION:A liquid distributor supplies to distribute liquid to be treated from an upper part in a substance and/or heat exchanging tower to an entire sectional part of the tower through distributing tubes. The tubes 3 disposed along an upper sectional surface part have at least one nozzle hole 4 at an upper surface of each tube 3, and a sheetlike base material 5 in contact with the surface of the tube under the holes 4, extended longitudinally of the tube and further mounted at a lower end separately from the tube. The material 5 has rugged cutouts or suspended member at its lower end. The tube has at a lower surface under the nozzle or an upper part of the material 5 in an inclined part down toward the surface of the tube 3 or the material 5 from outlets of the holes 4 axially of the tube through the holes 4.

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 evenly distributing the liquid on the structure, so-called packing material, which fills the inside of the tower in the tower in which the liquids come into contact with each other by causing the gases to flow in countercurrent to 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 their distribution methods are also various. As one method, there is a method in which a plurality of liquid distribution pipes are arranged parallel to the tower cross section, and nozzle holes are opened at intervals below the distribution pipe. Since this type of distribution pipe is a method of dropping the liquid onto the filling material from the nozzle hole, the liquid is distributed to the filling material at intervals of the nozzle hole. The distribution pipes are connected by a single main pipe which is also arranged in parallel to the tower cross section, and the main pipe is connected to a vertical pipe which is arranged parallel to the column axis. The amount of liquid flowing out from the nozzle hole is determined by the head of the liquid stored in the vertical pipe, the nozzle diameter and the number of nozzles. At the time of use, the head is treated as a variable among the head, the nozzle diameter, and the number of nozzles. The liquid changes its flow due to the change of the head. When the head is high, the flow velocity increases,
If it is low, the flow velocity will decrease. Because of this fluctuation of flow velocity,
Normally, the nozzle hole is opened so that the direction of the flow and the distribution position do not change and the direction is directed vertically downward of the distribution pipe. If the nozzle diameter and the number of nozzles are determined assuming a large flow rate, the liquid easily flows out from the nozzle holes near the vertical pipe when the liquid volume is small, and it is difficult to evenly distribute the liquid. Becomes

The amount of liquid distributed in the substance and / or heat exchange column depends on the operating conditions. When the liquid distribution greatly increases or decreases during operation, a distributor having nozzle holes at the lower part with such intervals is not effective.

As another method, there is a so-called overflow type in which the distribution pipe is formed by a U-shaped groove and the liquid overflows from the notch at the upper end of the U-shape, but it is structurally occupied in the column cross-sectional area. The ratio becomes large, and there is a risk of causing a pressure loss of rising gas during operation.

In addition, in order to achieve uniform liquid distribution, there is a device in which a guide pin is attached to the notch and the liquid is guided downward by a capillary force to drop the liquid, but it is very expensive in terms of cost. In the case of this type of distributor, since it is necessary to uniformly overflow the liquid, it is necessary to keep the upper end surface horizontal, which causes difficulty in installing in the column.

Further, it is necessary to prevent the liquid surface from being ruffled for uniform overflow, but it is technically difficult to cancel the wave, and it is difficult to use when the liquid amount is large and the flow velocity is high. Cause

According to another method, Japanese Patent Application No. 63-459 discloses a method in which a side wall of a distribution pipe formed by a U-shaped groove is opened and the liquid flowing out therefrom hits a guide wall to spread the liquid by the impact.
As is known from No. 91, this method is not sufficient for a slowly flowing liquid because it has a speed at which the liquid flows out.

[0008]

The inventor has conducted extensive research in order to overcome the drawbacks of the prior art. As a result, a nozzle hole is provided in the upper part of the distribution pipe, and a sheet-shaped base material is attached to the lower part of the nozzle hole. It was discovered that the uniform distribution of the liquid was significantly improved by attaching the.

The first aspect of the present invention is a liquid distributor for supplying a liquid to be treated from the upper part of the inside of the column of a substance and / or heat exchange column through a distribution pipe to the entire cross section of the column. And the distribution pipe disposed along the upper cross-section has at least one nozzle hole on the upper surface of the distribution pipe, and the distribution pipe is in contact with the distribution pipe surface below the nozzle hole. A sheet-like base material is attached so as to extend in the longitudinal direction and the lower end portion is separated from the distribution pipe, and the lower end portion of the sheet-like base material is provided with concave and convex cuts. In addition, the distribution pipe surface at the lower part of the nozzle or the upper part of the sheet-shaped substrate is a part inclined or inclined toward the lower part of the distribution pipe surface or the lower part of the sheet-shaped substrate from the nozzle hole outlet in the distribution pipe axial direction passing through the nozzle hole. Substances characterized by having parts / Or relates to a liquid distributor for heat exchange column.

A second aspect of the present invention is a liquid distributor for supplying a liquid to be treated from the upper part of the inside of a column of a substance and / or heat exchange column through a distribution pipe to distribute the liquid to be treated over the entire cross section of the column. And the distribution pipe disposed along the upper cross-section has at least one nozzle hole on the upper surface of the distribution pipe, and the distribution pipe is in contact with the distribution pipe surface below the nozzle hole. A sheet-like base material is attached to the sheet-like base material, which extends in the longitudinal direction and further has its lower end portion separated from the distribution pipe, and a liquid branching plate is continuously provided at the lower end portion of the sheet-like base material. The plates are formed so as to open one by one or several sheets in the opposite direction with the distribution pipe axial direction sandwiched therebetween, and in the distribution pipe, the distribution pipe surface below the nozzle or the sheet-shaped substrate upper part is the nozzle hole. Distribution pipe from the nozzle hole outlet in the distribution pipe axial direction It relates to a liquid distributor for material and / or heat exchange column, characterized in that it has an inclined portion or horizontal Naru portion downwardly below or sheet-like substrate.

The present invention will be described below with reference to examples. In FIG. 1, the liquid distributor of the present invention has the following configuration.

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 distribution pipe (3) branched from the main pipe. Nozzle holes (4) are arranged on the upper portion of the distribution pipe (3) at arbitrary intervals. The number of nozzle holes may be plural. A sheet-like base material (5) extends from the lower portion of the nozzle hole along the side portion of the distribution pipe and is attached. It is not always necessary to install from the lower part of the nozzle hole. The nozzle hole may be opened from above the nozzle hole to below the mounting hole. Concavities and convexities (6) serving as liquid diffusing means may be formed on the surface of the sheet-shaped substrate. A large number of holes may be provided in the sheet-shaped substrate together with the unevenness (6) serving as the liquid diffusing means or in place of the unevenness (6). The lower end of the sheet-like base material (5) is separated without coming into contact with the distribution pipe.

As for the flow of the liquid, the liquid flows from the vertical pipe (1) to the main pipe (2) and is branched from the main pipe (2) to the distribution pipe (3). The branched liquid is a distribution pipe (3).
Out of the nozzle hole (4). The liquid that has flowed out spreads over the distribution pipe and flows downward.

The distribution pipe is usually formed by using a circular pipe, in which case the surface of the upper portion of the pipe has an inclination angle with respect to the vertical line. Therefore, the liquid flowing out from the nozzle hole arranged in the upper portion diffuses as it flows downward along the pipe surface. This is because when the liquid is made to flow below a certain point above the vertically standing plate, the liquid flows as a straight line and it is difficult for it to diffuse on the plate, but when this is done on an inclined plate, it is extremely Speaking of which, dropping a liquid on a horizontal plate spreads the liquid in all directions. Therefore, if the nozzle hole is located above the distribution pipe, the more the nozzle hole is located, the larger the inclination of the pipe surface becomes, which is advantageous for the diffusion of the liquid. Therefore, it is preferable to arrange the nozzle hole at the top of the pipe. If the pipe has a square shape and the upper surface is horizontal, the diffusion can be further promoted. This is the basis of the present invention. Therefore, it is advantageous for the liquid diffusion that the distribution pipe or the sheet-shaped substrate has an inclined portion or a horizontal portion in the lower part of the nozzle in the axis (11) direction of the distribution pipe. When the diameter of the nozzle is small and the head of the water is high, the flow velocity is high, so it is feared that the liquid may be scattered outside the upper part of the distribution pipe. In this case, it is placed opposite the nozzle hole (4). A cover (10) for covering the nozzle hole may be provided at the location.

The liquid that has flowed down is supplied from the lower portion of the nozzle hole onto the sheet-shaped substrate extending along the side portion of the distribution pipe. When the sheet-shaped substrate has an inclined portion, diffusion is further promoted and the liquid falls on the filler. The sheet-shaped substrate (5) is preferably attached to the left and right of the distribution pipe.
In this way, the liquid flowing out from the upper nozzle hole can be distributed to the left and right and spread. From this point of view, it is preferable that the nozzle hole is arranged at the top of the distribution pipe in practice. As for the sheet-shaped base materials attached to the left and right sides of the distribution pipe, one sheet-shaped base material may be distributed at the top of the distribution pipe, or two sheet-shaped base materials may be attached to each of the left and right sides of the distribution pipe. . Explaining the liquid diffusing means applied to the sheet-shaped base material, the liquid diffusing means may be formed by forming irregularities on the sheet-shaped base material, or by forming a plurality of holes, or by bending. The grooved or sheet-like base material may be overlaid with a net-like base material, or the sheet-like base material may be formed with a net. Since the liquid that has flowed down the sheet-shaped substrate reaches the notch (8) of the unevenness attached to the lower end of the sheet-shaped substrate, and when it further flows down, it will fall on the filling material from the downward convex portion. is there. As a result, the liquid drop position can be made constant, and the liquid can be uniformly distributed.
This is one requirement of the present invention. The uneven cut may have a rounded tip or a sharp tip.
In addition, for the notch of the unevenness, a plate-shaped or rod-shaped base material may be attached to the lower end portion of the sheet-shaped base material at intervals. Explaining another requirement of the present invention, even if the lower end portion of the sheet-shaped base material is provided with a concave-convex notch as described above, if the amount of liquid flowing down is large, the liquid is not only from the convex portion but also from the concave portion. As a result, the liquid forms a film-like film and flows. Further, in the case of a liquid having a strong surface tension, even if a film-like film is formed, the film is not a uniform film, and the liquid gathers and shakes due to a change in the flow from above. For this reason, the falling position fluctuates, which is not preferable in terms of achieving uniform distribution.

The present invention has the following features to solve this problem. A liquid branching plate (9) is continuously provided at the lower end of the sheet-shaped substrate, and the liquid branching plate is formed by opening it in the opposite direction with the distribution pipe axis interposed therebetween. In this way, the liquid flowing down from above is branched leftward and rightward by the branch plates, so that no film is formed and it is possible to drop below the tips of the respective branch plates. In this case, it is preferable that the adjacent liquid branch plates have an appropriate distance from each other in the unopened state. If they are close to each other, it will be easier to form a liquid film between them even when they open.
It is not preferable for liquid distribution. Further, the tip of the liquid branching plate may be thin. In this way, the liquid can be continuously dropped even when the liquid amount is small. The alternating opening in the opposite direction will be described here. The opening angle is preferably increased as the liquid amount increases. This is because if the angle is small, the liquid film is easily formed. In practice, this angle is about 60 to 120 degrees. Further, the liquid branch plates may be opened one by one alternately, or a plurality of liquid branch plates may be alternately opened. The tip of the liquid branching plate may be round or pointed. The open liquid guide plate may be curved downward or bent downward. A liquid guide groove may be formed on the liquid branch plate.

The liquid branch plate may be provided with holes of any size, or may be made of a mesh base material. The liquid branching plate may be made of a rod-shaped base material or a needle-shaped base material. Conventionally, in this type of distributor, the distance between the distribution pipes is about 10 cm, and the distance between the nozzle holes is often about 10 cm. Therefore, in terms of area, 10
The liquid dropped at about 1 point per 0 cm ² . According to the method of the present invention, even if the distance between the distribution pipe and the nozzle hole is the same as the conventional one, it is possible to increase the number of drops of the liquid, and by distributing the liquid to the left and right of one distribution pipe, a very large distribution can be achieved. You can do it.

Further, even distribution which could not be achieved when the amount of liquid generated when the nozzle hole was arranged in the lower part of the distribution pipe was not possible in the conventional case, the nozzle hole is arranged in the upper part and the distribution pipe is kept substantially horizontal. As a result, almost the same pressure can be obtained from the head of water in the vertical pipe, so that even distribution can be achieved with a small amount of liquid.

As described above, according to the present invention, by locating the nozzle hole in the upper part of the distribution pipe, the liquid outflow amount from the plurality of nozzle holes can be made uniform, and the inclination angle is set on the surface through which the liquid flows. By having it and making unevenness in the lower end of the sheet-shaped substrate, the distribution effect is enhanced and uniform distribution is made possible.

A plurality of distribution pipes are connected to the main pipe (2). As much liquid as possible flows in the distribution pipe connected to the main pipe (2) near the vertical pipe (1) and the distribution pipe connected to the main pipe (2) far from the vertical pipe (1). It is preferable to taper the inside of the main pipe as shown in FIG. In FIG. 2, (3a) is a distribution pipe connected to a portion of the main pipe (2) close to the vertical pipe (1), and (3a)
b) is a distribution pipe connected to the part of the main pipe (2) far from the vertical pipe (1). The holes (4) are omitted in FIG.

The size and shape of the nozzle hole and the arrangement are arbitrary. Various aspects of the present invention will be described below.

As shown in FIG. 3, the sheet-like base material may be provided with irregularities (6) serving as liquid diffusing means.

As shown in FIG. 4, a plurality of holes (7) serving as liquid diffusing means may be formed in the sheet-shaped substrate.

As shown in FIG. 5, a cover (10) may be attached at a position facing the nozzle hole. By doing so, it is possible to prevent the liquid flowing out from the nozzle hole from being scattered to the outside. As shown in FIG. 6, the distribution pipe may be formed of a pipe having a triangular shape or more.

As shown in FIG. 7, a liquid branching plate (9) is provided at the lower end of the sheet-like base material, and the liquid branching plates are provided one by one or several by sandwiching the distribution pipe axial direction. It may be formed so as to open in opposite directions.

As shown in FIG. 8, a hanging member 12 is provided at a lower end portion of the sheet-like base material, and the hanging members 12 are arranged in the opposite direction one by one or several by sandwiching the distribution pipe axial direction. You may face.

[0027]

INDUSTRIAL APPLICABILITY The distribution pipe of the present invention can evenly distribute the liquid 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 a column of a substance and / or heat exchange column through a distribution pipe to the entire cross section of the column, the liquid distributor being arranged along the upper cross-section part. The divided distribution pipe has at least one nozzle hole on the upper surface of the distribution pipe, is in contact with the distribution pipe surface below the nozzle hole, and extends in the longitudinal direction of the distribution pipe, and further divides the lower end portion. A sheet-shaped substrate is attached separately from the pipe, and a concave-convex cut is made at the lower end of the sheet-shaped substrate. A substance and / or a material, characterized in that the upper part of the base material has a portion that is inclined from the nozzle hole outlet toward the lower part of the distribution pipe surface or the lower part of the sheet-like base material in the axial direction of the distribution pipe that passes through the nozzle hole, or a horizontal part. Liquid distributor for heat exchange towers.

2. A liquid distributor for supplying a liquid to be treated from an upper part of a column of a substance and / or heat exchange column through a distribution pipe to the entire cross section of the column, the liquid distributor being arranged along the upper cross-section part. The divided distribution pipe has at least one nozzle hole on the upper surface of the distribution pipe, is in contact with the distribution pipe surface below the nozzle hole, and extends in the longitudinal direction of the distribution pipe, and further divides the lower end portion. A sheet-shaped substrate is attached separately from the pipe, and a liquid branch plate is continuously provided at a lower end portion of the sheet-shaped substrate, and the liquid branch plates are arranged one by one with the distribution pipe axial direction interposed therebetween. Or it is formed by opening several sheets in opposite directions, and in the distribution pipe, the surface of the distribution pipe at the lower part of the nozzle or the upper part of the sheet-shaped substrate passes through the nozzle hole from the nozzle hole outlet in the axial direction of the distribution pipe. Toward the bottom of the distribution pipe or below the sheet-shaped substrate Liquid distributor for material and / or heat exchange column, characterized in that it has an oblique portion or a horizontal Naru portion.

3. 3. The liquid distributor according to 1 or 2 above, wherein a sheet-like base material is provided with irregularities serving as a liquid diffusion means.

4. The liquid distributor according to 1 or 2 above, wherein a plurality of holes serving as liquid diffusing means are formed in the sheet-shaped substrate.

5. The liquid distributor according to 1 or 2 above, wherein a cover is attached at a position opposite to the nozzle hole.

6. The liquid distributor according to 1 or 2 above, wherein the distribution pipe is formed by a pipe having a triangular shape or more.

7. You may bend right and left from the upper part to the lower part of the uneven groove. By doing so, the formation of the film is less likely to occur.

[Brief description of drawings]

1A is a perspective view of a distributor of the present invention, and FIG. 1B is an enlarged view of a portion in which a sheet-shaped substrate is attached to a distribution pipe.

FIG. 2 is a sectional view of a distribution pipe.

FIG. 3 is a perspective view of a distribution pipe.

FIG. 4 is a perspective view of a distribution pipe.

FIG. 5 is a perspective view of a distribution pipe.

FIG. 6 is a perspective view of a distribution pipe.

FIG. 7 is a perspective view of a distribution pipe.

FIG. 8 is a perspective view of a distribution pipe.

[Explanation of symbols]

1: Distributor vertical pipe, 2: Distributor main pipe, 3: Distribution pipe, 4: Nozzle hole, 5: Sheet-shaped base material, 6: Roughness, 7: Hole, 8: Roughness notch, 9: Liquid branch plate, 10: cover, 11:
Distribution pipe axis, 12: hanging member.

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 13, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Liquid distributor for substances and / or heat exchange columns

[Claims]

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 the liquid over a structure, a so-called packing material, which is filled in the inside of the tower in which the liquid and the gas are brought into countercurrent contact with each other and brought into contact with each other.

[0002]

2. Description of the Related Art There are many kinds of liquid distributors conventionally 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 along the cross section of the tower, and nozzle holes are opened at intervals below the distribution pipe. This type of distribution pipe is a method of dropping liquid from the nozzle hole onto the filling material,
The liquid is distributed to the filler through the nozzle holes. The distribution pipes are similarly connected by one main pipe arranged in parallel to the cross section of the tower, and the main pipe is connected to a vertical pipe arranged in parallel to the tower axis. The amount of liquid flowing out from the nozzle hole is determined by the head of the liquid stored in the vertical pipe, the nozzle diameter, and the number of nozzles. Among the water head, the nozzle diameter, and the number of nozzles, the water head changes when used. The fluctuation of the head causes the fluctuation of the liquid flow. When the head is high, the flow velocity increases, and when it is low, the flow velocity decreases. Due to this fluctuation of the flow velocity, the nozzle hole is normally opened with its direction facing vertically downward of the distribution pipe so that the flow direction and the distribution position do not change. If the nozzle diameter and the number of nozzles are determined assuming a large flow rate, the liquid easily flows out from the nozzle hole near the vertical pipe when the liquid amount is small, and therefore, it is possible to evenly distribute the liquid. It will be difficult.

The amount of liquid distributed in the substance and / or heat exchange column depends on the operating conditions. When the amount of liquid distribution greatly increases or decreases during operation, the above-mentioned distributor having the nozzle holes at the lower part at intervals is not effective.

As another method, there is a so-called overflow type in which the distribution pipe is formed by a U-shaped groove and the liquid overflows from the notch at the upper end of the U-shaped groove. The proportion of the tower cross-sectional area becomes large, which may cause a pressure loss of rising gas during operation.

In order to achieve uniform liquid distribution,
A guide pin is attached to the notch, and the liquid is guided downward by capillary force to drop the liquid, but it is very expensive in terms of cost. In this type of distributor, it is necessary to keep the upper end surface horizontal in order to uniformly overflow the liquid, which causes difficulty in installing in the tower.

In addition, in such a distributor, it is necessary to prevent the liquid surface from being ruffled for uniform overflow, but it is technically difficult to cancel the wave, and when the liquid amount is large and the flow velocity is high, It causes a problem that it is difficult to use.

According to another method, the side wall of the distribution pipe formed by the U-shaped groove is opened, the liquid flowing out from the side wall is collided with the guide wall, and the liquid is spread by the impact. It is known from Japanese Patent Application No. 63-45991, but this method requires a certain speed for the liquid to flow out, and therefore is not sufficiently effective for a slowly flowing liquid.

[0008]

The inventor has conducted extensive research in order to overcome the drawbacks of the prior art. As a result, a nozzle hole is provided in the upper part of the distribution pipe, and a sheet-shaped base material is attached to the lower part of the nozzle hole, in which case the side part of the distribution pipe located below the nozzle and / or the upper surface part of the sheet-shaped base material. In, it was found that the uniform distribution of the liquid is significantly improved by providing a plane inclined or horizontal to the direction intersecting the distribution pipe axis.

A first aspect of the present invention is the substance and / or heat.
Crossing the upper part of the exchange tower through the distribution pipe
Liquid distribution to distribute the liquid to be treated over the entire surface area
A vessel arranged along the cross section of the tower.
The pipe has at least one nozzle hole in its upper surface
And the lower part of the nozzle hole contacts the surface of the distribution pipe.
However, it extends in the longitudinal direction of the distribution pipe and its lower end
If a sheet-shaped substrate that is placed away from the distribution pipe is attached,
The sheet-like base material has a notch on the lower end.
Side of the distribution pipe located below the nozzle.
Section and / or the upper surface of the sheet-shaped substrate intersects the distribution pipe axis
Has a surface that is inclined or horizontal toward
And / or a liquid for a heat exchange column
Regarding the body distributor.

A second aspect of the present invention is a liquid distributor for supplying and supplying a liquid to be treated from an upper part of the inside of a column of a substance and / or heat exchange column through a distribution pipe over the entire cross section of the column. The distribution pipe arranged along the cross-sectional portion of the tower has at least one nozzle hole in its upper surface, and the lower part of the nozzle hole is in contact with the surface of the distribution pipe. , A sheet-like base material that extends in the longitudinal direction of the distribution pipe and whose lower end is arranged away from the distribution pipe is attached, and a liquid branching plate is continuous to the lower end of the sheet-like base material. The liquid branching plate is formed so as to open in the opposite direction one by one or several by sandwiching the distribution pipe axial direction, and the side and / or sheet of the distribution pipe located below the nozzle. The upper surface of the base material is inclined toward the direction intersecting the distribution pipe axis Or to substances and / or liquid distributor for heat exchange column, characterized in that it has a horizontal surface.

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

FIG. 1 shows one embodiment of the liquid distributor of the present invention.

The liquid distributor according to one aspect of 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 distribution pipe branched from the main pipe. It is composed of (3).

Nozzle holes (4) are arranged above the distribution pipe (3) at arbitrary intervals. The number of nozzle holes may be singular or plural. A sheet-like substrate (5) extending in the longitudinal direction of the distribution pipe is attached along the side of the distribution pipe in the lower portion of the nozzle hole. Here, it is not always necessary to attach the sheet-shaped base material (5) to the lower portion of the nozzle hole, and the sheet-shaped base material (5) is attached.
May be attached to the upper part of the nozzle hole and hung downward to form a hole in the part corresponding to the nozzle hole.

The lower end of the sheet-like base material (5) is hung in a separated state without coming into contact with the distribution pipe. Further, the lower end portion of the sheet-shaped substrate (5) is provided with a cut (8).

Concavities and convexities (6) serving as liquid diffusing means may be formed on the surface of the sheet-like base material (FIG. 3). Alternatively, the sheet-shaped substrate may be provided with a large number of holes (7) together with the unevenness (6) serving as the liquid diffusing means or instead of the unevenness (6) (FIG. 4). Further, the surface of the sheet-shaped substrate and / or the distribution pipe may be provided with an oxide coating by nitric acid treatment or the like,
Alternatively, it is more preferable to improve the wettability of the liquid by applying satin finish or making fine scratches.

Explaining the flow of the liquid, the liquid to be distributed flows from the vertical pipe (1) to the main pipe (2) and is branched from the main pipe (2) to the distribution pipe (3). The branched liquid flows out through the nozzle hole (4) of the distribution pipe (3). The liquid that has flowed out spreads over the upper surface of the distribution pipe and flows downward.

The distribution pipe is preferably formed using a circular pipe, in which case the plane of the upper part of the pipe has an angle inclined with respect to the vertical. Therefore, the liquid flowing out from the nozzle hole arranged in the upper portion of the pipe diffuses laterally as it flows downward along the surface of the pipe.

This is done on an inclined plate, although if the liquid is made to flow below a certain point above a vertically standing plate, the liquid will flow as a straight line and it is difficult for it to diffuse on the plate, but this is done on an inclined plate. In some cases, the liquid tends to spread laterally, and in the extreme case, when the liquid is dropped onto a horizontal plate, the liquid spreads in all directions.

Therefore, the closer the position of the nozzle hole is to the uppermost portion of the distribution pipe, the larger the inclination of the pipe surface in that portion becomes, which is advantageous for the liquid diffusion.

For this reason, it is preferable to arrange the nozzle hole at the top of the pipe. Further, if the pipe is used in a rectangular shape and the upper surface is horizontal, the diffusion of the liquid can be further promoted.

In the present invention, the side portion of the distribution pipe located below the nozzle and / or the upper surface portion of the sheet-like substrate are inclined toward the direction intersecting the distribution pipe axis or have a horizontal surface. Having it is an essential requirement. here,
The condition that "the side portion of the distribution pipe located below the nozzle and / or the upper surface portion of the sheet-shaped substrate has an inclined surface or a horizontal surface in a direction intersecting the distribution pipe axis" As a mode that satisfies the above condition, that is, a mode in which the side portion of the distribution pipe located below the nozzle is inclined as in the case where the nozzle hole is opened in the uppermost part of the circular pipe or the like (Fig. 1-c), as shown in FIG.
It is conceivable that the upper surface portion of the sheet-shaped base material located below the nozzle hole is inclined or horizontal in the direction intersecting the distribution pipe axis. If this requirement is satisfied, the effects described above are obtained, and the lateral diffusion of the liquid is promoted.

When the diameter of the nozzle is small and the head of the water is high, the flow velocity is high, and there is a concern that the liquid may be scattered outside the upper portion of the distribution pipe. In this case, the nozzle hole (4) (10) that covers the nozzle hole at the location opposite to
May be provided (see FIG. 5).

The liquid flowing out from the nozzle hole is supplied onto the sheet-like substrate extending from the lower portion of the nozzle hole along the side portion of the distribution pipe. When the surface of the sheet-shaped substrate has a portion inclined with respect to the vertical direction, the diffusion of the liquid is further promoted. The liquid thus laterally diffused falls from the lower end of the sheet-shaped substrate onto the filler.

The sheet-like base material (5) is preferably attached to both left and right sides of the distribution pipe. This way,
The liquid flowing out from the upper nozzle hole can be distributed to the left and right to be diffused. From this point as well, it is preferable that the nozzle hole is disposed at the top of the distribution pipe in practice. As for the sheet-shaped base material attached to the side portion of the distribution pipe, one sheet-shaped base material may be distributed to both sides at the top of the distribution pipe, or two sheet-shaped base materials may be respectively attached to the side portions of the distribution pipe. May be attached.

Liquid diffusing means (6) on the surface of the sheet-shaped substrate
Can be applied (FIG. 3). The liquid diffusing means may be configured by making unevenness on the surface of the sheet-shaped substrate (FIG. 3) or may be configured by making a plurality of holes on the surface of the sheet-shaped substrate ( Alternatively, the sheet-shaped base material may be bent or grooves may be formed on the surface of the sheet-shaped base material. Alternatively, the liquid diffusing means may be configured by stacking a net-like base material on the sheet-like base material, or the liquid diffusing means may be configured by forming the sheet-like base material itself with a net.

The liquid flowing down on the surface of the sheet-shaped substrate is
It reaches the notch (8) of the unevenness provided at the lower end of the sheet-like base material, and falls on the filler from the downwardly protruding projection. As a result, the liquid drop position can be made constant, which enables uniform distribution of the liquid.

The concave and convex cut may have a rounded tip or a sharp tip. Alternatively, a plate-shaped or rod-shaped base material may be attached to the lower end portion of the sheet-shaped base material at intervals as an alternative to the cut of the unevenness.

In the case where the lower end portion of the sheet-like base material is simply provided with the concave and convex portions as described above, the liquid flows down not only from the convex portion but also from the concave portion when a large amount of liquid flows down. As a result, A phenomenon occurs in which the liquid forms a film-like film and flows. In the case of liquids with strong surface tension,
Similarly, a film-like film is formed, but the film is not a uniform film, and a phenomenon occurs in which the flow of the liquid gathers at several places due to the change in the amount of flow-down, and the places where the liquid gathers shake left and right. For this reason, the liquid drop position fluctuates, which is not preferable from the viewpoint of uniform distribution of the liquid. In order to prevent such a problem, you may make it bend the right and left from the upper part to the lower part of the uneven | corrugated notch part of the sheet-shaped base material lower end part. This makes it difficult for the liquid film to be formed.

In another improved embodiment of the present invention, in order to solve the above-mentioned problems, a liquid branching plate (9) is continuously provided at the lower end of the sheet-like base material (5). The liquid branching plate is provided in such a manner that it is opened in the opposite direction across the pipe axis of the distribution pipe (FIG. 7).

In this way, the liquid that has flowed down the surface of the sheet-shaped base material from above is branched left and right by the branch plates, so that no liquid film is formed, and the liquid drops are formed from the tip of each branch plate. It will fall down. Further, by providing such a liquid branch plate at the lower end portion of the sheet-shaped base material, the liquid distributed linearly along the lower end portion of the sheet-shaped base material when such a branch plate is not provided. Can be distributed over the area connecting the ends of the liquid branching plate with an area spread. by this,
It also allows the distribution of dispersed liquids.

Here, it is preferable that the adjacent liquid branch plates have an appropriate space between them in the unopened state. This is because if the adjacent liquid branch plates are close to each other, a liquid film is likely to be formed between the adjacent branch plates even when they are open, which is not preferable in terms of liquid distribution.

The tip of the liquid branching plate may be thin. In this way, the liquid can be continuously dropped even when the liquid amount is small.

The opening angle of the liquid branch plate is preferably increased as the amount of liquid to be distributed increases. This is because a liquid film is easily formed when the opening angle of the liquid branching plate is small. In practice, this angle is 60 degrees to 1
It is desirable to set it to about 20 degrees.

The liquid branch plates may be opened one by one alternately, or a plurality of liquid branch plates may be alternately opened. The tip of the liquid branching plate may be round or pointed. Further, the open liquid guide plate may be curved or bent downward.

Further, a liquid guide groove may be formed on the liquid branch plate. Further, the liquid branching plate may be provided with holes of any size, or the liquid branching plate may be composed of a mesh base material. The liquid branching plate may be composed of a rod-shaped base material or a needle-shaped base material.

Further, instead of the liquid branching plate, a hanging member may be continuously provided at the lower end portion of the sheet-like base material, and the hanging members may be opened one by one or several by one in the opposite direction to form the same effect. Is obtained.

In this type of conventional distributor, the spacing between the distribution pipes is about 10 cm, and the spacing between the nozzle holes is often about 10 cm. Therefore, in terms of area, 100 cm ²
The liquid dropped on about one place.

According to the method of the present invention, even if the distance between the distribution pipe and the nozzle hole is the same as the conventional one, it is possible to increase the number of drops of the liquid, and it is extremely possible to drop the liquid by distributing it to the left and right of one distribution pipe. Large distributions can be made.

Further, as described above, in the conventional distributor in which the nozzle holes are arranged in the lower part of the distribution pipe, uniform distribution could not be achieved when the liquid amount was small. In the distributor, since the nozzle hole is located above the distribution pipe, by keeping the distribution pipe almost horizontal, it is possible to obtain almost the same pressure from the head of the vertical pipe, and achieve uniform distribution even with a small amount of liquid. You can do it.

As described above, in the liquid distributor according to the present invention, by locating the nozzle holes in the upper part of the distribution pipe, it is possible to make the liquid outflow amount from the plurality of nozzle holes uniform, and By giving an inclination angle to the surface that runs down and making unevenness on the lower end of the sheet-shaped substrate,
It enhances the liquid distribution effect and enables uniform distribution.

In the liquid distributor according to the present invention, a plurality of distribution pipes (3) are connected to the main pipe (2), but a portion connected to the main pipe near the vertical pipe (1). In order to make the same amount of liquid as possible flow through the pipe and the distribution pipe connected to the main pipe that is far from the vertical pipe (1), taper the inside of the main pipe as shown in FIG. It is preferable to increase the thickness of the distant main pipe. In FIG. 2, (3a) is a distribution pipe connected to the main pipe in a portion close to the vertical pipe (1), and (3b) is a distribution pipe connected to a main pipe in a portion distant from the vertical pipe (1). .
The holes (4) are omitted in FIG.

The size, shape and arrangement of the nozzle holes are arbitrary.

Various aspects of the present invention will be described below with reference to the drawings.

In the liquid distributor of the present invention, as shown in FIG. 3, the sheet-like base material may be provided with irregularities (6) serving as liquid diffusing means.

Further, as shown in FIG. 4, a plurality of holes (7) serving as liquid diffusing means may be formed in the sheet-like base material.

Further, as shown in FIG. 5, a cover (10) may be attached at a position opposed to the nozzle hole to prevent the liquid flowing out from the nozzle hole from scattering to the outside.

In the liquid distributor of the present invention, as shown in FIG. 6, the distribution pipe may be formed of a polygonal pipe having a triangular shape or more.

Further, as shown in FIG. 7, a liquid branching plate (9) is provided at the lower end of the sheet-like base material, and one or several liquid branching plates are sandwiched in the distribution pipe axial direction. You may form so that it may open in an opposite direction.

Further, as shown in FIG. 8, a hanging member (12) is provided at the lower end portion of the sheet-like base material, and the hanging members are arranged one by one or several by sandwiching the distribution pipe axial direction. They may be formed so as to face in opposite directions.

[0051]

According to the distribution pipe 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 the upper part of the inside of the substance and / or heat exchange column through a distribution pipe over the entire cross section of said column; along a cross section of said column A distribution pipe arranged in a manner having at least one nozzle hole in its upper surface; in a lower part of the nozzle hole, in contact with the distribution pipe surface and extending in the longitudinal direction of the distribution pipe, A sheet-like base material whose lower end is arranged away from the distribution pipe is attached, and a concave-convex cut is made in the lower end of the sheet-like base material; The side portion of the pipe and / or the upper surface portion of the sheet-shaped substrate has an inclined or horizontal surface in a direction intersecting the distribution pipe axis; Liquid distributor for exchange towers.

2. 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 of said column; along a cross section of said column A distribution pipe arranged in a manner having at least one nozzle hole in its upper surface; in a lower part of the nozzle hole, in contact with the distribution pipe surface and extending in the longitudinal direction of the distribution pipe, A sheet-like base material whose lower end is arranged apart from the distribution pipe is attached, and a liquid branching plate is provided at the lower end of the sheet-like base material,
The liquid branching plate is formed by opening one by one or several sheets in the opposite direction with the distribution pipe axial direction sandwiched therebetween; the side part of the distribution pipe located below the nozzle and / or the upper surface part of the sheet-like substrate. Having an inclined or horizontal surface in the direction intersecting the distribution axis; a liquid distributor for substances and / or heat exchange columns, characterized in that

3. 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 of said column; along a cross section of said column A distribution pipe arranged in a manner having at least one nozzle hole in its upper surface; in a lower part of the nozzle hole, in contact with the distribution pipe surface and extending in the longitudinal direction of the distribution pipe, A sheet-like base material whose lower end is arranged apart from the distribution pipe is attached, and a hanging member is continuously provided at the lower end of the sheet-like base material. One by one, or several by several, facing in the opposite direction across the pipe axis direction; the direction in which the side portion of the distribution pipe located below the nozzle and / or the upper surface of the sheet-shaped substrate intersects the distribution pipe axis. Characterized by sloping towards or having a horizontal surface; Liquid distributor for material and / or heat exchange column.

4. The liquid distributor according to any one of the above items 1 to 3, wherein the surface of the sheet-shaped base material is provided with irregularities serving as liquid diffusing means.

5. The liquid distributor according to any one of the above items 1 to 3, wherein a plurality of holes serving as liquid diffusing means are formed on the surface of the sheet-shaped substrate.

6. The liquid distributor according to any one of the above items 1 to 3, wherein a cover for preventing liquid scattering is attached to a portion of the distribution pipe opposite to the nozzle hole.

7. 4. The liquid distributor according to any one of the above items 1 to 3, wherein the distribution pipe is formed of a polygonal pipe having a triangular shape or more.

8. 2. The liquid distributor according to the above item 1, wherein the cut-out portion of the unevenness at the lower end portion of the sheet-shaped base material is bent leftward and rightward from above to below.

[Brief description of drawings]

FIG. 1 is a diagram showing a liquid distributor according to the present invention. Figure 1
1a is a perspective view of a liquid distributor according to the present invention, FIG.
FIG. 4 is an enlarged view of a distribution pipe in the liquid distributor according to the present invention. 1 c and d are cross-sectional views of distribution pipes according to two aspects of the liquid distributor according to the present invention.

FIG. 2 is a cross-sectional view of a vertical pipe, a main pipe and a distribution pipe in a liquid distributor according to a preferred embodiment of the present invention.

FIG. 3 is a perspective view of a distribution pipe in a liquid distributor according to another aspect of the present invention.

FIG. 4 is a perspective view of a distribution pipe in a liquid distributor according to another aspect of the present invention.

FIG. 5 is a perspective view of a distribution pipe in a liquid distributor according to another aspect of the present invention.

FIG. 6 is a perspective view of a distribution pipe in a liquid distributor according to another aspect of the present invention.

FIG. 7 is a perspective view of a distribution pipe in a liquid distributor according to another aspect of the present invention.

FIG. 8 is a perspective view of a distribution pipe in a liquid distributor according to another aspect of the present invention.

[Explanation of Codes] 1: Distributor vertical pipe, 2: Distributor main pipe, 3: Distribution pipe, 4: Nozzle hole, 5: Sheet-shaped base material, 6: Concavo-convex, 7: Hole, 8: Concavo-convex cut, 9 : Liquid branching plate, 10: Liquid scattering prevention cover, 11: Distribution pipe shaft, 12: Hanging member.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (3)

[Claims] 1. A liquid distributor for supplying a liquid to be treated from an upper portion of the inside of a substance and / or heat exchange column through a distribution pipe to a whole cross section of the column, the upper cross section being a liquid distributor. The distribution pipe arranged along the portion has at least one nozzle hole on the upper surface of the distribution pipe, is in contact with the distribution pipe surface below the nozzle hole, and extends in the longitudinal direction of the distribution pipe, and A sheet-shaped substrate is attached with its lower end separated from the distribution pipe, and a cut is made in the lower end of the sheet-shaped substrate, and the distribution pipe surface below the nozzle in the distribution pipe is attached. Alternatively, the upper portion of the sheet-shaped substrate has a portion that is inclined or horizontal toward the lower portion of the surface of the distribution pipe or the lower portion of the sheet-shaped substrate from the nozzle hole outlet in the distribution pipe axial direction that passes through the nozzle hole And / or liquid distribution for heat exchange columns vessel. 2. A liquid distributor for supplying a liquid to be treated from an upper part of the inside of the substance and / or heat exchange column through a distribution pipe to the entire cross section of the column, the upper cross section being a liquid distributor. The distribution pipe arranged along the portion has at least one nozzle hole on the upper surface of the distribution pipe, is in contact with the distribution pipe surface below the nozzle hole, and extends in the longitudinal direction of the distribution pipe, and A sheet-like base material is attached with the lower end portion separated from the distribution pipe, and a liquid branching plate is provided at the lower end portion of the sheet-like base material, and one liquid branching plate sandwiches the distribution pipe axial direction. One or several sheets are formed so as to open in opposite directions, and the distribution pipe surface at the lower part of the nozzle in the distribution pipe or the upper part of the sheet-shaped substrate passes through the nozzle hole. From below the distribution pipe surface or below the sheet-shaped substrate A material and / or liquid distributor for a heat exchange column, characterized in that it has an inclined part or a horizontal part. 3. 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 to the entire crossing part of the column, wherein the upper crossing part is provided. The distribution pipe arranged along the surface portion has at least one nozzle hole on the upper surface of the distribution pipe, is in contact with the distribution pipe surface below the nozzle hole, and extends in the longitudinal direction of the distribution pipe, Further, a sheet-like base material is attached with the lower end portion separated from the distribution pipe, and a hanging member is continuously provided at the lower end portion of the sheet-like base material, and the hanging member sandwiches the distribution pipe axial direction. In the distribution pipe axial direction in which the distribution pipe surface at the lower part of the nozzle or the upper part of the sheet-shaped substrate passes through the nozzle hole in the distribution pipe axial direction. From below the distribution pipe surface or below the sheet-shaped substrate A material and / or liquid distributor for a heat exchange column, characterized in that it has an inclined part or a horizontal part.