KR101711101B1 - Liquid distributor for column - Google Patents

Abstract

A liquid distributor for the column is introduced.
The liquid distributor for a column includes a charging portion for supplying liquid, a receiving portion for temporarily storing the liquid supplied from the charging portion, a drain portion having a plurality of perforations for discharging the liquid, And a distributor for connecting the storage portion and the drain portion so as to be evenly provided.

Description

[0001] LIQUID DISTRIBUTOR FOR COLUMN [0002]

The present invention relates to a liquid distributor for a column, and more particularly to a liquid distributor for a column capable of evenly distributing liquid into a column for vapor-liquid contact even in a rocking state or a tilted state due to marine motion.

Generally, the liquid distributor is used for the distillation tower, absorption tower, etc. which apply the principle of distillation, absorption and cooling for the removal of essential oil, petrochemical, fine chemical and harmful gas or organic matter. And gas-liquid contact devices such as trays and packing are used to perform various separations in the refinery and petrochemical industries. Structured packing is generally used at sea, rather than irregular packing, because trays are unsuitable due to flooding in the dikes when column flow occurs.

It is widely known that the use of structured packing in a column has many advantages when low pressure drop is important. However, the performance of the column depends on forming and maintaining an equilibrium between the liquid descending flow and the gas ascending flow, which occur locally in the packing.

The distribution of the liquid and gas in such a filling is influenced by the initial amount of the filling of the fluids and the individual characteristics of the filling. Due to various reasons, the distribution of the liquid in the filling is more sensitive to the initial supply than the distribution of the vapor. Typically, the initial supply of liquid is formed by a liquid distributor. It is the minimum requirement for the flow from the water inlet to be uniform that the liquid level in the opening of the liquid distributor must be uniform.

However, in practice, it is difficult to form a uniform initial liquid distribution. For example, various factors can affect liquid level uniformity in a liquid distributor, including hydrodynamic resistance in a liquid distributor, misalignment during dispenser installation, and tilting of the column.

In particular, the design of a marine liquid distributor requires some special effort. For example, both wind and wave effects cause significant motion in the column of the ship deck, where the column is tilted from its vertical position by the oscillating motion and the liquid in the liquid distributor is moved to one side. Conventionally, the uniformity of the liquid level in the liquid distributor can be considerably deteriorated by the movement of the vessel. If the uniformity of the liquid level is deteriorated, the flow from the water inlet becomes non-uniform and eventually the distribution state of the liquid in the column becomes poor.

Thus, there is a demand for a method in which the liquid in the liquid distributor can be uniformly distributed into the column even if the column is rocked or tilted due to the swing motion.

Patent Document: Korean Patent Laid-Open Publication No. 10-1999-0067982 (published on August 25, 1999)

Embodiments of the present invention seek to provide a liquid distributor for a column that is capable of even distribution of liquid in the column even in a rocking or tilting state.

A liquid distributor for a column according to an aspect of the present invention includes: a charging unit for supplying a liquid; A receiving part for temporarily storing the liquid supplied from the charging part; A drain portion having a plurality of perforations for discharging liquid; And a distributor for connecting the receiver and the drain so that the liquid in the receiver is evenly distributed to the drain, wherein the distributor comprises a plurality of distribution tubes connecting the receiver and the drain; And an opening and closing member that at least partially closes a flow path of a distribution pipe connected below the accommodation portion when the distribution portion is inclined to one side.

In this case, the drain portion may include a main drain provided with a flow passage through which the liquid flows, and a plurality of perforations formed in a bottom surface thereof; And a sub-drain provided on the side wall of the main drain, the sub-drain being provided with a plurality of perforations on the bottom surface thereof.

The inlet pipe having one end drawn into the inner space of the accommodating portion and the other end opened at least partially by the movement of the opening and closing member; And a draw pipe connecting the opening of the draw pipe and the drain portion in a communicative manner.

Also, the distribution pipe may include a first distribution pipe vertically connected to the bottom of the accommodation part and the drain part; And a second distribution pipe provided in a plurality of radial directions to connect the drain portion and the side wall of the receiving portion.

The outer wall of the inlet pipe may have a plurality of through holes through which the liquid flows in the container.

In addition, the distribution pipe may further include a stopper provided in the opening to restrict movement of the opening and closing member when the liquid distributor for the column is inclined to one side.

The stopper may be formed with a curvature slope whose movement distance of the opening and closing member is limited so that the size of the opening to be opened and closed varies according to an inclination angle of the liquid distributor for the column.

According to the embodiment of the present invention, by adding a second distribution pipe extending in four directions from the side of the accommodation portion to the main pipe in addition to the first distribution pipe for sending the fluid flow from the lower portion of the accommodation portion to the main water pipe, There is an advantage that it is possible to improve the property.

Further, according to the embodiment of the present invention, when the column is tilted to one side, the opening and closing member moves in a tilting direction to partially close the flow path of the liquid, thereby advantageously suppressing the uneven distribution of the liquid due to the fluctuation of the column .

1 is a side view showing a liquid distributor for a column according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view cut along the "AA" line of Fig. 1 according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view cut along the line AA of FIG. 1 according to a modification of the present invention.
4 is a cross-sectional view cut along the line BB of Fig. 2 according to an embodiment of the present invention.
5 is a state diagram showing an operating state of the opening / closing member when the liquid distributor for a column is inclined at a predetermined angle according to an embodiment of the present invention.
Fig. 6 is a cross-sectional view cut along the line BB of Fig. 2 according to a modification of the present invention.
7 is a state diagram showing an operating state of the opening / closing member when the liquid distributor for a column is inclined by a predetermined angle, according to an embodiment of the present invention.
8 is a state diagram showing an operating state of the opening and closing member when the liquid distributor for a column is inclined by a predetermined angle more than that of FIG. 7, according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, configurations and operations according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION The following description is one of many aspects of the claimed invention and the following description may form part of the detailed description of the invention. However, the detailed description of known configurations or functions in describing the present invention may be omitted for clarity.

While the invention is susceptible to various modifications and its various embodiments, it is to be understood that the specific embodiments are illustrative and not restrictive. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

And terms including ordinals such as first, second, etc. may be used to describe various elements, but the constituent elements are not limited by such terms. These terms are used only to distinguish one component from another. It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Fig. 1 is a side view showing a liquid distributor for a column according to an embodiment of the present invention, Fig. 2 is a cross-sectional view cut along the line AA of Fig. 1 according to an embodiment of the present invention, Sectional view taken along line AA of Fig. 1, according to a modification of the present invention.

1 to 3, the liquid distributor for a column according to an embodiment of the present invention can uniformly distribute liquid into a column in which vapor-liquid contact is made even under a swinging state or an inclined state have.

Here, since the column corresponds to a conventional distillation column for separating a desired substance through gas-liquid contact, a detailed description thereof will be omitted. However, the column according to the present embodiment can be installed in a marine platform, a ship, or the like where a uniform liquid distribution is required even in a rocking state or a tilted state.

The liquid distributor for such a column may include a charging unit 100, a receiving unit 200, a drain unit 300, and a distributor 400.

Specifically, the charging section 100 can be positioned at the uppermost position of the liquid distributor so that liquid for the column can be supplied in the form of a hopper having a predetermined space in which liquid can be accommodated. In addition, the receiving portion 200 may be connected to the lower portion of the loading portion 100 in a communicable manner.

An inlet and an outlet through which liquid is supplied and discharged can be formed on the upper and lower sides of the charging unit 100, respectively. Accordingly, when a large amount of liquid is supplied to the charging port of the charging unit 100, the liquid supplied to the charging unit 100 is converged to the center of the charging unit 100 and then discharged through the discharging port of the charging unit 100 Can be discharged to the unit (200).

The receiving portion 200 may be configured as a cylindrical case connected to a lower portion of the input portion 100. The inside of the accommodating part 200 may be provided with an internal space for temporarily storing the liquid supplied from the inlet. At this time, the level of the liquid in the accommodating portion 200 can always be maintained at an appropriate level.

Since the distributing part 400 is connected to the bottom and side walls of the receiving part 200, the distribution of the liquid in the receiving part 200 can be uniform. Each of the distributing units 400 connected to the bottom surface and the side walls of the accommodating unit 200 is formed to have the same flow amount of liquid through the distributing unit 400 connected to the bottom surface and the side wall of the accommodating unit 200, Can be designed differently.

The drain part 300 includes the main drain 310 and the sub drain 320 and can uniformly distribute the liquid supplied through the distribution part 400 into the column. In the main drain 310, a flow path through which the liquid supplied from the distributor 400 is moved is formed in the longitudinal direction, and a plurality of spaced apart and arranged in a matrix form such that the liquid is evenly discharged to the bottom of the main drain 310 Holes can be formed.

The sub-drains 320 may be formed in the form of a plurality of branch pipes connected to the sidewalls of the main drain 310. A plurality of porous holes may be formed on the bottom surface of the plurality of sub-drains 320 to be spaced apart in a matrix form so that the liquid is evenly discharged.

In this embodiment, the sub-drain 320 is composed of a plurality of sub-drains 320 connected to the sidewalls of the main drains 310 so as to be independent from the different main drains 310, but as shown in FIG. 3, And the sub-drains 320 may be connected to different main drains 310 spaced apart from one another.

The distribution unit 400 is a connection pipe connecting the storage unit 200 and the drain unit 300 and can uniformly supply the liquid in the storage unit 200 to the drain unit 300. The distribution unit 400 may include a plurality of distribution pipes 410 connecting the storage unit 200 and the drain unit 300.

The distribution pipe 410 includes a first distribution pipe 410a vertically connected to a bottom surface of the receiving part 200 and the drain part 300 and a second distribution pipe 410b connected to the side part of the receiving part 200 and the drain part 300 in the radial direction And a plurality of second distribution pipes 410b connected to each other. The diameter of the first branch pipe 410a is designed to be larger than the diameter of the second branch pipe 410b so that the flow amount of the liquid through the first branch pipe 410a and the flow amount of the liquid through the plurality of second branch pipes 410b The flow amounts of the liquids can be made equal to each other.

In the present embodiment, the second distribution pipe 410b is constituted by four distribution pipes 410 spaced at 90 degree intervals in the circumferential direction from the side wall of the accommodation part 200, but is not limited thereto, The spacing angle and the number of pipes 410b may be changed into various shapes for uniformly distributing the liquid. For example, the second distribution pipe 410b may be constituted by six distribution pipes 410 spaced at 60 degree intervals in the circumferential direction from the side wall of the accommodation part 200, And eight distribution pipes 410 spaced apart at an interval of 45 degrees. However, as the number of the second distribution pipes 410b increases, the diameter of the second distribution pipe 410b should be reduced.

FIG. 4 is a cross-sectional view cut along the line BB of FIG. 2 according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view of the liquid distributor for a column when the liquid distributor for a column is inclined at a predetermined angle, Fig. 8 is a state view showing an operating state of the opening and closing member.

4 to 5, each of the distributing pipes 410 may include a draw pipe 411, a draw pipe 412, and a stopper 413. As shown in FIG. Here, the inlet pipe 411 may be defined as a pipe of the distribution pipe 410 which is drawn into the inner space of the receiving portion 200. For example, one end of the inlet pipe 411 is drawn into the inner space of the receiving portion 200 and an opening 411a is formed at the other end of the inlet pipe 411, at least a part of which is opened and closed by the movement of the opening and closing member 420 And a plurality of through holes 411b through which the liquid flows in the accommodating portion 200 are formed on the outer wall of the intake pipe 411.

The stopper 413 can protrude from the opening 411a of the inlet pipe 411 to restrict the movement of the opening and closing member 420 in the inlet pipe 411. [ The stopper 413 prevents the opening and closing member 420 in the inlet pipe 411 from moving to the outlet pipe 412 so that the moving range of the opening and closing member 420 can be restricted into the inlet pipe 411.

The drawing pipe 412 may be defined as a pipe of the distribution pipe 410 exposed in the receiving portion 200. The drawing pipe 412 may be connected to the other end of the drawing pipe 411 so that the opening 411a of the drawing pipe 411 and the drain portion 300 communicate with each other.

The distribution unit 400 may include an opening and closing member 420 that at least partially closes the flow path of the distribution pipe 410 when the distribution unit 400 is tilted to one side.

The opening and closing member 420 may be formed of a ball-shaped sphere movable in the longitudinal direction within the drawing pipe 412. When the liquid distributor for a column is tilted to one side, the opening and closing member 420 partially closes the flow path of the distributor pipe 410 located below the accommodating portion 200 by the swinging of the column, It is possible to suppress the uneven distribution of the liquid.

5, when the liquid distributor is tilted to one side, the opening and closing member 420 in the distribution pipe 410 located below the receiving part 200 is moved to the opening 411a, and then the stopper 413 The flow path of the distribution pipe 410 can be partially closed. As a result, the liquid in the accommodating portion 200 can be prevented from being further distributed to the distributor pipe 410 located below the accommodating portion 200.

Fig. 6 is a cross-sectional view cut along the line BB of Fig. 2 according to a modification of the present invention, and Fig. 7 is a cross-sectional view of the liquid dispenser for a column, according to an embodiment of the present invention, 8 is a state diagram showing an operating state of the opening and closing member when the liquid distributor for a column is inclined by a predetermined angle more than that of FIG. 7 according to an embodiment of the present invention.

6, according to a modification of the present invention, the curvature slope 413a is formed in the stopper 413 'so that the movement distance of the opening / closing member 420 is limited according to the angle at which the liquid distributor for a column is tilted. . When the inclination angle of the liquid distributor for a column is changed, the movement position of the open / close member 420 moving on the curved slope 413a of the stopper 413 'may be changed, and the size of the opening 411a may be changed .

7, when the liquid distributor for the column is inclined by a predetermined angle, the opening and closing member 420 is positioned at the middle portion of the curved slope 413a, and the opening 411a is partially closed . 8, when the liquid distributor for a column is inclined by a predetermined angle more than that of Fig. 7, the opening / closing member 420 is positioned at the uppermost end of the curvature slope 413a, Lt; / RTI >

As described above, the present invention is characterized in that, in addition to the first distribution pipe for sending the fluid flow from the lower portion of the accommodation portion to the drinking water pit, a second distribution pipe extending in four directions from the side of the accommodation portion to the drinking water pit is added, And when the column is inclined to one side, the opening and closing member moves in a tilting direction to partly close the liquid flow path, which can suppress the uneven distribution of the liquid due to the swinging of the column. Respectively.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

100: input portion 200: accommodating portion
300: drain part 310: main drain
320: sub-drain 400: distribution portion
410: Distribution pipe 411: Inlet pipe
412: Drawing pipe 413: Stopper
420: opening / closing member

Claims (7)

An inlet for supplying the liquid;
A receiving part for temporarily storing the liquid supplied from the charging part;
A drain portion having a plurality of perforations for discharging liquid; And
And a distributing portion for connecting the accommodating portion and the drain portion so that the liquid in the accommodating portion is evenly distributed to the drain portion,
The distributing unit
A plurality of distribution pipes connecting the receiving portion and the drain portion; And
And an opening / closing member that at least partially closes a flow path of a distribution pipe connected below the accommodation portion when the distribution portion is inclined to one side. The method according to claim 1,
The drain
A main drain provided along the longitudinal direction and having a plurality of perforations formed in the bottom thereof; And
And a sub-drain provided at a plurality of branches branched from the side wall of the main drain and having a plurality of perforations at a bottom surface thereof. The method according to claim 1,
The distribution pipe
An inlet pipe having one end drawn into the inner space of the accommodating portion and having an opening at the other end that is at least partially opened and closed by movement of the opening and closing member; And
And a drawing pipe connecting the opening of the drawing pipe and the drain section in a communicating manner. The method according to claim 1,
The distribution pipe
A first distribution pipe vertically connected to a bottom surface of the accommodating portion and the drain portion; And
And a second distribution pipe provided in a plurality of radial directions to connect the side wall of the accommodation portion and the drain portion in a radial direction. The method of claim 3,
On the outer wall of the inlet pipe
And a plurality of through holes through which the liquid in the containing portion flows. The method of claim 3,
The distribution pipe
And a stopper provided in the opening to restrict movement of the opening and closing member when the liquid distributor for the column is inclined to one side. The method according to claim 6,
The stopper
Wherein a curvature slope is formed in which the moving distance of the opening and closing member is limited so that the size of the opening to be opened and closed varies according to an inclination angle of the liquid distributor for the column.

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