JPS61234925A - Liquid distribution apparatus - Google Patents

Abstract

PURPOSE:To hold excellently the uniformity of the distribution of a liquid by providing vertically plural pieces of pipes having the perforated holes of the prescribed size in the side faces to the inside of a liquid chamber having a liquid feed part so that each perforated hole is positioned on a same horizontal plane. CONSTITUTION:A Liquid W in a liquid chamber 1 fed through a liquid feed part 2 is passed into plural pieces of pipes 5 through each perforated hole 6. In this case, since the perforated holes 6 of respective pipes 5 are positioned on a same horizontal plane, the head H of the liquid W in the liquid chamber 1 for each perforated hole 6 is same and the liquid W in the liquid chamber 1 is uniformly distributed in each pipe 5 in cooperation with the same size of each perforated hole 6 and the liquid of same amount is passed into each pipe 5 through each hole 6. The liquid passed through each pipe 5 is fed to the packed towers from the respective base parts of each pipe 5 and therein brought into contact with a gas passed through each packed tower 8 from the base parts thereof and thereafter discharged through a nozzle 17 for the liquid discharge.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid distribution device, and the liquid distribution device of the present invention uniformly distributes a liquid through a plurality of packed columns. It can be used when multiple units of equipment other than packed towers, such as granulation towers, absorption towers, thin film distillation towers, various reactors, and various processing equipment, are used and the liquid is uniformly distributed to each equipment. It is possible.

[Conventional technology]

Conventionally, when distributing liquid to multiple pieces of equipment as described above using multiple pipes, the tops of the container pipes are positioned on the same horizontal plane to allow the liquid to flow into the container pipes due to overflow. In order to achieve uniformity, a method has been devised to form a cutout such as a slit or a V-notch at the top of the container.

[Problem that the invention seeks to solve]

However, in the conventional liquid distribution device using overflow as described above, when installing the device, it is necessary to position the tops of the container tubes on the same horizontal plane, and if there is even a slight difference in height between the tops of the container tubes, the flow rate will The problem was that the Furthermore, even if the equipment is carefully installed so that the tops of the containers are located on the same horizontal plane, distortion may occur due to operating conditions (e.g. under high temperatures).
Alternatively, if a difference in height occurs over time in the pedestal on which the device is installed, there is a problem in that it is difficult to achieve uniform distribution of the liquid.

[Means for solving problems]

The present invention provides a through hole (for example, an orifice) of a certain size on the side surface of the container tube, and uses the through hole to distribute liquid to the container tube, thereby making it possible to reduce the height difference in the through hole of the container tube. Even if this occurs, the uniformity of liquid distribution can be maintained relatively well.

That is, in the present invention, a plurality of tubes each having a through hole of a predetermined size on the side surface are arranged vertically in a liquid chamber having a liquid supply section, with each through hole being located on the same horizontal plane, Provided is a liquid distribution device, in which the liquid in the liquid chamber supplied from the liquid supply section is passed through each of the plurality of tubes through the respective through holes, and is supplied to a predetermined location from the lower part of each of the line tubes. It is something.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the liquid distribution device of the present invention shown in the drawings will be described below.

FIG. 1 shows an example of distributing liquid to a plurality of packed towers. In the figure, l is a liquid chamber having a liquid supply section (liquid supply nozzle) 2; A mirror plate 4 is fixed to the upper part of a tube plate 3 constituting the bottom wall, and
The liquid supply section 2 is formed at the center of the clay wall of the mirror plate 4.

Reference numeral 5 denotes a plurality of tubes of the same size each arranged vertically in the liquid chamber 1, and a predetermined through hole 6 of the same size is provided on the 11th surface of the container tube 5. Reference numeral 5 is fixed to the tube plate 3 so that each through hole 6 faces into the liquid chamber 1 on the same horizontal plane. In addition, 7 is a notch of the same size provided at the upper end of the container tube 5, and in the event that the liquid level of the liquid W in the liquid chamber 1 rises, the distribution of the liquid W to the container tube 6 due to overflow is prevented. It has the function of making it as uniform as possible.

Further, reference numeral 8 denotes a plurality of packed towers of the same size arranged below the container tube 5, and another tube sheet 10 fixed below the tube sheet 3 via a body 9, and the tube sheet 3. Each tube plate 12 is held by another tube plate 12 fixed to the lower part of the tube 10 via a body 11. Then, the outside of each packed tower 8 and the above-mentioned 11
The inner shell part 13 has a nozzle 1 provided in the core 11.
4.15 for supplying and discharging heating or cooling medium.

Further, reference numeral 16 denotes a mirror plate fixed below the tube plate 12, and a liquid discharge nozzle 17 is provided at the center of the lower wall thereof, and a gas supply nozzle 18 is provided on the side wall thereof.

In addition, the amount of liquid supplied from the liquid supply section 2 into the liquid chamber 1 is controlled so that the head H of the liquid W is constant when the liquid W in the liquid chamber 1 is discharged from each through hole 6. None adjustable.

In addition, in FIG. 1, reference numeral 19 denotes a pipe provided in the tube plate 3 so as to introduce the gas that has been supplied from the gas supply nozzle 1 and passed through the packed tower 8 from below into the liquid chamber 1. ,2
0 is a nozzle for discharging the gas introduced into the liquid chamber 1. Further, 21 is a flange.

[Effect]

In the liquid distribution device of the present invention configured as described above,
The liquid W in the liquid chamber 1 supplied from the liquid supply section 2 is
It passes through the plurality of tubes 5 through the respective through holes 6.

In this case, since the through holes 6 of the container tube 5 are arranged on the same horizontal plane as described above, each through hole 6
The head H of the liquid W in the liquid chamber l is the same for each, and together with the fact that the size of each through hole 6 is the same, the liquid W in the liquid chamber l is uniformly distributed in the container tube 5. The same amount of liquid passes from each through hole 6 into each tube 5. The liquid that has passed through the container tube 5 is
It is supplied from the lower part of each of the container tubes 5 to the packed tower, where,
After coming into contact with the gas passing through each packed tower 8 from below, it is discharged from the liquid discharge nozzle 17.

Therefore, in the liquid distribution device of the present invention, even if there is a height difference in the position of the through hole 6 of the container tube 5, if the liquid rad H is made sufficiently large, the position of the through hole 6 can be increased by several ann. The height difference does not matter, and there is no large difference in the flow rate of the liquid distributed in each tube 5. In other words, if the size of each through hole 6 is the same, the flow rate of the liquid will be the square root of H. For example, liquid head H
If the height is adjusted to about 100m, even if the height difference of the through hole 6 is about 11llll, the difference in the liquid head H will only be about 1%, and the flow rate proportional to the square root of H will be Only negligible changes occur.

On the other hand, in conventional liquid distribution devices that allow liquid to overflow, even a difference in the height of the pipes of about 1 mm causes an extremely large change in the flow rate, so it is necessary to be very careful to eliminate the difference in height of the pipes when installing the liquid distribution device. Ta.

Incidentally, as is clear from the above description, in the present invention,
Locating each through hole 6 on the same horizontal plane means locating each through hole 6 so that there is as little difference in height as possible, and includes cases where some difference in height occurs. or,
The distance from the through hole 6 in the container tube 5 to the upper end of the tube is preferably set to a length that allows a sufficient amount of liquid to be collected.
In addition, a plurality of through holes 6 may be provided as long as they are provided in the same way in the container tube 5, and in the above embodiment, regarding the case where gas-liquid contact is made in a plurality of packed towers 8. As explained above, the liquid distribution device of the present invention can be used for other purposes, such as using a plurality of granulation towers, absorption towers, thin film distillation towers, various reactors, various processing equipment, etc., and uniformly distributing liquid to each equipment. This can be similarly applied when distributing to other people.

〔Effect of the invention〕

As described above, the liquid distribution device of the present invention has a plurality of tubes each having a through hole of a predetermined size on the side surface, which are arranged vertically in a liquid chamber with the through holes located on the same horizontal plane. Therefore, even if there is a slight height difference in the through-hole of the container, the uniformity of liquid distribution can be maintained well, which is a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention. 1...liquid chamber 2...Liquid supply section (liquid supply nozzle) 5... tube 6...Through hole

Claims (1)

[Claims] In a liquid chamber having a liquid supply section, a plurality of tubes having through holes of a predetermined size on the sides are arranged vertically with the through holes located on the same horizontal plane, and the liquid is supplied from the liquid supply section. A liquid distributing device, wherein the liquid in the liquid chamber is passed through the respective through holes into the plurality of tubes, and is supplied to a predetermined location from the lower part of each of the tubes.