JPH0531355A - Packing material for gas-liquid contact - Google Patents

Abstract

PURPOSE:To enable operation reduced in the pressure drop at the time of operation, in the packing material for gas-liquid contact allowed to irregularly pack a packing tower by achieving the miniaturization and wt. reduction of the packing material and enhancing the gas-liquid flowability thereof, to keep the contact density of gas-liquid constant by increasing the strength of the packing material and to inexpensively prepare a packing material by simply forming the same. CONSTITUTION:A cylindrical main body 10 is formed by providing a gas-liquid flow passage 11 in the axial direction of the inner periphery thereof and circular holes 12 are punched in the cylindrical main body 10 from the outer peripheral surface thereof in the direction of the flow passage 11 and burrs 18 generating by punching the holes 12 are allowed to protrude to the flow passage 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-liquid contact packing which is irregularly packed in a packed tower or the like for contacting gas-liquid.

[0002]

2. Description of the Related Art Conventionally, a packing used to randomly fill the inside of a packed column has a gas-liquid flow passage (2) along the inner peripheral axis of a cylindrical body (1) as shown in FIG. Those provided with are known. Since this conventional packing (3) has a simple shape,
It was strong against deformation and easy to handle.

However, the filling (3) does not have an opening on the outer peripheral surface of the cylindrical body (1). Therefore, when the packing (4) is in a state of being laid sideways, liquid or gas does not flow into the flow passage (2), and gas-liquid contact is hardly made on the inner surface of the cylindrical main body (1). Further, there is a drawback that the liquid flowing down is concentrated in a part and is liable to cause a nonuniform flow, so that a uniform gas-liquid contact is not performed.

In addition, there is a packing shown in FIG. 5 in an attempt to solve the above-mentioned drawbacks. This filling (5) is
Since the cylindrical body (6) was provided with the opening (7), the gas-liquid flowability was excellent and the gas-liquid contact effect was large.

However, this conventionally known packing (5)
Has a square shaped opening (7) and has a tongue-like projection (8) projecting only from one end of this opening (7), so the opening (7) is not reinforced at all Is weak. Therefore, this filling
(5) is easily deformed by the weight from above when packed in a packed column in a large amount, and the crushed packing (5) hinders the flow of gas and liquid to this part, causing a drift or a large pressure. It had the drawback of causing a descent.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a packing for gas-liquid contact in which the inside of a packed column is irregularly packed to make contact with gas-liquid, and the above-mentioned drawbacks are solved to achieve the packing. In addition to downsizing, weight reduction, and high strength, the gas-liquid flowability is improved, and there is little pressure drop during operation, enabling reliable gas-liquid contact.

Another object of the present invention is to easily form the structure of the filling material for low cost manufacturing.

[0008]

In order to solve the above-mentioned problems, the present invention punches a circular hole from the outer peripheral surface in the flow passage direction in a cylindrical body having a gas-liquid flow passage provided in the inner peripheral axial direction. The burr generated by the opening of the circular hole is projected into the flow passage.

[0009]

Since the present invention is constructed as described above,
The packing of the present invention, which is packed irregularly in a packed column or the like, allows gas and liquid to flow through the flow passages and circular holes provided in the cylindrical main body.

When a circular hole is punched and opened, this filling material deforms and projects the cylindrical body of the punching opening portion inward,
A burr protruding into the flow passage is formed on the outer periphery of the punching opening.

For this reason, the filling not only opens the circular hole to enhance the flowability of gas and liquid, but the burr protruding into the flow passage reinforces the opening to increase the strength. There is.

As described above, since the packing has the flow passage and the circular hole opened in the cylindrical body, the flowability between the gas and the liquid is good, and the pressure drop during operation is small. Further, since the filling has irregular burrs protruding from the outer circumference of the circular hole, a large end area of the burrs is formed, and gas-liquid contact with a large contact area is possible.

Further, since the packing has increased strength due to burrs, even if a large amount is packed in the packed tower, deformation such as crushing does not occur, and a constant gas-liquid contact density is formed. Therefore, reliable gas-liquid contact is possible.

Further, the packing does not have burrs regularly,
Irregular burrs are projected inside the cylindrical body. Therefore, the punching die used for forming the filling has a simple structure, and the filling can be manufactured at low cost.

[0015]

EXAMPLE An example of the present invention will be described below. (10)
Is a tubular body, which is formed of a corrosion-resistant metal plate such as stainless steel, and can be formed to have an arbitrary diameter, length, etc. depending on the packed column, the purpose of gas-liquid contact, and the like. Further, the product of this embodiment is formed so that the diameter and the length direction are substantially equal to each other as shown in FIG.

Further, the tubular main body (10) is provided with a gas-liquid flow passage (11) in the inner peripheral axial direction. And the tubular body
(10) is a plurality of circular holes from the outer peripheral surface in the direction of the flow passage (11).
(12) is punched and opened, and the formation area of this circular hole (12) is
It is 5% to 35% of the outer peripheral area of the cylindrical body (10).

The method of forming the circular hole (12) is performed before forming the tubular main body (10) into a tubular shape. First, as shown in FIG. 2, the flat plate (13) before becoming the cylindrical main body (10) is
The upper mold (14) is interposed between the upper mold (14) and the lower mold (15), and the upper mold (14) is moved by pressing the upper mold (14).
The pressing protrusion (16) provided on the lower surface of the plate is pressed against the flat plate (13) to open a circular hole (12) in the flat plate (13) as shown in FIG. Further, as the circular hole (12) is formed, the flat plate (13) forms a burr (1) in the groove (17) of the lower mold (15) as shown in FIG.
8) Project to the lower surface.

The flat plate having the burr (18) protruding therefrom.
(13) is rolled into a cylinder to form a filling (19).

In the above-constructed packing, the packing (19) randomly packed in a packed tower or the like is
The flow passage provided in the tubular body (10) even when it is laid sideways.
Gas and liquid can be circulated through (11) and the circular hole (12).

Since the packing (19) has burrs (18) irregularly protruding into the flow passage (11) on the outer periphery of the circular hole (12), the packing (19) is The circular hole (12) not only enhances the gas-liquid flowability, but also does not concentrate the liquid in a part or cause a drift or the like, widely disperses the liquid, and evenly contacts the area between the gas and the liquid. It is possible to make a large gas-liquid contact.

The filling material (19) has a burr (18) as a circular hole.
Since it protrudes to the outer periphery of (12), it is superior in strength to a conventional filling material having an opening and is not crushed or deformed.

[0022]

The present invention is constructed as described above,
In the packing packed irregularly in a packed tower, the packing is
The flow passages and the circular holes formed in the cylindrical body allow good flowability of gas and liquid, and can reduce pressure drop during operation.

Moreover, since the filling has irregular burrs protruding from the outer periphery of the circular hole, the burrs have a large end area, and gas-liquid contact with a large contact area is possible. In addition, it is possible to prevent gas-liquid drift.

Further, since the strength of the packing material is increased by the burr provided on the outer circumference of the circular hole, even if a large amount of the packing material is packed in the packing tower, deformation such as crushing is not likely to occur, and the packing tower interior The gas-liquid contact density is maintained at a good level, and reliable gas-liquid contact is possible.

Further, it is not necessary to regularly provide burrs in the filling material as in the conventional case, and irregular burrs are projected. Therefore, the punching die used for forming the filling has a simple structure, and the filling can be manufactured at low cost.

[Brief description of drawings]

1 is a perspective view

[Figure 2] Conceptual diagram of the mold

FIG. 3 is a perspective view of a flat plate with a burr.

FIG. 4 is a perspective view of a conventional filling material in which an opening is not formed in a tubular body.

FIG. 5 is a perspective view of a conventional filling material in which an opening is formed in a tubular body.

[Explanation of symbols]

 10 Cylindrical body 11 Flow path 12 Circular hole 18 Burr

Claims (1)

Claim: What is claimed is: 1. A cylindrical body having a gas-liquid flow passage provided in the inner peripheral axial direction is punched with a circular hole from the outer peripheral surface in the flow passage direction.
A filling for gas-liquid contact, characterized in that a burr generated by the opening of the circular hole is projected into the flow passage.