JPH05264197A - Substance and/or filler for heat exchanging tower - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a packing material used in a packed column for material heat and / or heat exchange, in which liquid and gas are easily contacted. [Structure] A plurality of sheet-like base materials each having a plurality of corrugated continuous folds that are inclined with respect to the axis of the packed tower and processed on the surface are laminated so that the fold directions intersect.
It is formed of three or more sheet-like base materials obtained by superposing a wrought wire mesh sheet and a plurality of other wrought wire mesh sheets, a wire mesh sheet, or a laminated sheet obtained by combining any one of them together. The spread wire net sheet has an opening of 0.2 mm or more in the 3 ', 3'expanding direction, 0.5 mm or more in the direction intersecting with it, and the interval between adjacent openings of the staggered arrangement is 0.05 mm or more. , The tops formed in the openings 4 of the wrought wire mesh sheet and the joints 4 of the openings are compressed or cut to reduce the distance between the contact surfaces. Filler that is larger than the total area of the openings.

Description

Detailed Description of the Invention

The present invention relates to a material and / or a packing material for a heat exchange column.

[0002]

2. Description of the Related Art Conventionally, this kind of filler is referred to in the present invention.
Sheet of expanded wire mesh (expanded metal) and others 1
It is known that the stretched wire netting sheet or the wire mesh sheet or one of the thin plate-like laminated sheets is formed by contacting the extended wire netting sheets and superposing them on each other. 1 mm, mesh number 10
There is also one formed by stacking two wire meshes of about 0.

The purpose of using two sheet-like base materials in contact with each other and overlapping them is to bring two sheet-like base materials into contact with each other and superimpose them on each other so as to generate a capillary attraction between the contact surfaces. It is a thing. When the two sheet-shaped base materials are brought into contact with each other and superposed on each other in this manner, the larger the area of the contact portion is, the stronger the capillary attraction is and the wider the liquid is diffused.

This kind of packing material is packed in a tower, and a liquid and a gas are made to flow countercurrently from above and below to bring them into contact with each other.
Alternatively, heat exchange is performed, and normally, liquid flows downward from above and gas flows upward from below. Since the liquid has a lower diffusivity when compared with a liquid and a gas, the diffusibility of the liquid has been a problem in this type of filler. Therefore,
Although various methods have been devised, the above-mentioned sheet-shaped substrate
One of them is a method of contacting and stacking them to obtain a capillary attraction. As another method of generating a capillary attraction force, there is also a filler in which lateral lines are sequentially brought into contact with each other depending on the weaving method of one wire netting sheet, and thereby a capillary attraction force is generated.

When the stretched wire netting sheet according to the present invention and another laminated sheet are brought into contact with each other and overlapped with each other, when the spread wire netting sheet has a small opening, the capillary attraction is strong, but the opening is The larger it is, the weaker it tends to be. This is because the contact area per unit area is small. Another important thing for these fillers to function is to take many stages or surfaces for the contact of gas and liquid. However, taking a large number of surfaces does not mean an increase in the mechanical surface area of simply making one sheet-shaped substrate into two pieces, but an increase in the surface area that allows gas and liquid to come into contact with each other. I won't. Conventionally, this kind of 2
In a stack of fillers, in order to exert a strong capillary attraction, the openings must be small. For example, in the case of wire mesh, the openings are about 100 mesh, and as a result, the liquid is 2 Since the gas is held between the contact surfaces of the two sheet-shaped base materials and the gas can contact the liquid only at the outer side of the two sheet-shaped base materials, even if the two sheets are stacked, the surface having the two sheets is substantially gas. There is a problem that cannot be provided for contact with the liquid. Therefore, even if the opening is enlarged and gas is introduced into the contact surface, the attraction of the capillary is decreased and the diffusion of the liquid is hindered.

The same applies to the case where the stretched wire netting sheet and the other laminating sheet referred to in the present invention are brought into contact with each other and superposed.

In the prior art, the capillarity attracting force decreases when the opening is increased, and conversely, the chance of contact between gas and liquid decreases when the opening is decreased.

[0008]

The present inventors have conducted research to overcome the drawbacks of the prior art. As a result, it is possible to solve the problem by bringing the stretched wire mesh sheet into contact with another sheet-like base material and compressing the top portion formed at the joint of the stretched wire mesh sheet to reduce the gap generated when they are overlapped. It was discovered that the improvement of the performance of the filler according to the present invention was realized.

In the first aspect of the present invention, a liquid is supplied from above and a gas is supplied from below, and gas and liquid are brought into contact with each other, whereby a substance exchange and / or heat exchange between the two are performed inside the tower. A plurality of continuous corrugated folds that are vertically arranged along the axis of the tower and have a corrugation in which the packing is inclined with respect to the axis of the tower. A plurality of sheet-shaped base materials are laminated so that fold directions intersect with each other, and the fold-processed sheet-shaped base material is at least one stretched wire mesh sheet (A) and another plurality of stretched wire mesh sheets, A wire mesh sheet or a thin plate-like sheet is formed of three or more sheet-like base materials which are brought into contact with each other or in combination with the overlapping sheet (B). Open eyes The stretched wire mesh sheet (A) has 0.2 mm or more in the extension direction, 0.5 mm or more in the direction intersecting with the extension direction, and the interval between adjacent stitches arranged in a staggered pattern is 0.05 mm or more. Formed at the joints between the perforated openings and the openings of the stretched wire mesh sheet in order to reduce the gap between the two sheets due to the unevenness of the stretched wire mesh sheet when they are brought into contact with the laminated sheet (B) and overlapped. When the laminated sheet (B) has an opening by compressing or cutting the top portion of the stretched wire netting sheet (A), the total area of the openings of the expanded wire mesh sheet (A) is the laminated sheet (B). ) Is larger than the sum of the areas of the openings of the material and / or the packing material for the heat exchange column.

The second aspect of the present invention is to supply a liquid from the upper side and a gas from the lower side, and to bring the gas and the liquid into contact with each other, whereby the inside of the tower for mass exchange and / or heat exchange between them. A tower packing material vertically arranged along the axis of the tower, the packing material having a plurality of corrugated continuous folds inclined with respect to the tower axis A plurality of sheet-like base materials are laminated so that the fold directions intersect with each other, and the fold-processed sheet-like base materials are two stretched wire mesh sheets (A) and other stretched wire mesh sheets or The wire mesh sheet or the thin plate-like sheet is composed of four or more sheet-like base materials which are brought into contact with each other or in combination with the overlapping sheet (B), and the three sheet-like base materials are the above-mentioned extending sheets. Wire mesh and 2 sheets It is formed by inserting the laminating sheet (B) in between, and at this time, at least one of the above-mentioned two extended wire mesh sheets (A) has an opening whose crossing is 0.2 mm or more in the extending direction and intersects in the extending direction. 0.5 mm or more in the direction,
The distance between adjacent stitches arranged in a staggered pattern is 0.05m
The stretched wire mesh sheet (A) having a length of m or more is in contact with the laminating sheet (B), and in order to reduce the gap generated on the contact surface due to the unevenness of the stretched wire mesh sheet when superposed, the stretched wire mesh sheets are permuted. When the laminating sheet (B) has an opening, the area of the opening part of the stretched wire mesh sheet is reduced by compressing or cutting the openings and the tops formed at the joints of the openings to reduce the contact surface. The total is larger than the total area of the openings of the laminated sheet (B) and / or the packing material for the heat exchange column.

The effect of the present invention will be described in more detail. In the conventional filler of this type, one of the effects of bringing two sheet-like base materials into contact with each other and stacking them is as follows.
By bringing the sheet-like base material into surface contact, it is possible to generate capillary attraction in the form of surface. When a capillary attraction is generated on a surface, the liquid spreads on all sides of the surface, so that the diffusion of the liquid that is especially required for these fillings can be achieved.

More specifically, in the case of the stretched wire netting sheet according to the present invention, even if the opening areas per unit area are the same, there are a plurality of openings rather than one opening, and the number of contact points is increased. It is possible to increase the capillary attraction. The other aim is to increase the stage for gas-liquid contact, that is, the surface area. When two sheet-like base materials are brought into contact with each other and superposed on each other, the surface area is increased in the sense that only one sheet becomes two sheets. The problem remains in terms of increasing the contact surface area of the liquid.

When the opening of the stretched wire mesh sheet is small, for example, when the extension direction is 0.2 mm or less and the direction intersecting the extension direction is 0.5 mm or less, the diffusion of the liquid due to the generation of the capillary attraction can be achieved. As for the contact between gas and liquid, the liquid diffused by the capillary attraction is often diffused inside the contact surface of the sheet-shaped substrate, so that the liquid is held in the open eyes, The liquid contact is performed only on the outer side of the stretched wire mesh sheet. In this case, the gas cannot reach the contact surface and the inside of the opening, that is, it cannot be said that stacking two sheets directly increases the contact area.

As a way of thinking to solve this problem, the following 3
There are two things.

1. Increase the opening of the stretch wire mesh sheet. In this case, it is presumed that, in the case of another laminated sheet, when the sheet has an opening, the opening is smaller than that of the stretched wire mesh sheet. In practice, the opening of the stretched wire mesh sheet is preferably about 0.5 mm in the extending direction and about 1 mm in the direction intersecting with the extending direction.

2. The occupancy rate per unit area of the wire mesh portion of the stretched wire mesh sheet is reduced, in other words, the wire mesh is thinned to reduce the amount of liquid retained in the contact portion between the two sheets and to reduce gas. Make it reach the inside of the open eye.

3. In combination with the items 2 and 3, the sheet thickness of the stretched wire netting sheet is increased to increase the surface area. In practice, the maximum is about 0.5 mm. This is because the liquid may not reach the tip even if the amount is further increased.

Although the above is mentioned as a solution, a problem arises in the case of the conventional stretched wire mesh sheet. The problem and its solution are described below.

The shape of the stretched wire mesh sheet will be described with reference to the drawings. FIG. 1 shows a state before the sheet is stretched. Reference numeral 1 is a sheet-shaped substrate 2, and 2 is an upper slit of the slits arranged in a staggered arrangement. The arrow A indicates the direction of the pulling force when the sheet is stretched, and indicates that the sheet-like substrate is pulled in a direction substantially at right angles. The arrow B indicates the reaction force when the sheet is drawn. It shows that force is applied in the opposite direction.

FIG. 2 shows a state in which the slit is extended. Three
Is an open eye with the slit 2 extended, and 3'is an open eye with the slit 2'extended. 4 is a joint. FIG. 3 shows the state of the joint portion. 5 is the upper line and 6 is the lower line. FIG. 4 shows a state where the upper line and the lower line are continuous. Reference numeral 7 is another laminated sheet that comes into contact, and 8 is a top portion formed at the joint. This sectional view shows the direction of arrow C.

FIG. 5 shows the upper line, the seam and the lower line. Arrow D indicates the thickness of the stretched wire mesh sheet. 9 indicates a gap.
As can be seen from FIGS. 1 to 5, the stretched wire mesh sheet is formed by stretching a sheet-shaped base material having slits in a zigzag arrangement in the direction of arrow A, and therefore the direction of the opening is relative to the sheet-shaped base material. And becomes a right angle. As a result, a joint 4 is formed between the opening 3 and the opening 3 ', and an upper line 5 and a lower line 6 are formed. When this is continuously stretched over the entire sheet, the shape cross section shown in FIG. 4 is exhibited. As a result, the gap 9 shown in FIG. 5 is produced.

In order to improve the contact between gas and liquid when the stretched wire mesh sheet and other laminated sheets are brought into contact with each other and laminated, the opening of the stretched wire mesh sheet is 0.2 mm in the extending direction in the present invention. As described above, 0.
Although it is set to 5 mm or more, as for the openings of other laminated sheets that come into contact with each other, when the laminated sheet has an opening or a mesh, the total area of the openings of the stretched wire mesh sheet is the sheet-like substrate. It is a premise of the present invention that the size is always larger than the total area of the openings or meshes. This is because the combination of two sheet-like base materials is the basis for improving the performance of the filler in the present invention. This is because the effect of the present invention is completely lost if the total area of the openings or lines of the other laminated sheets is larger than that of the stretched wire mesh sheet. Also, if the opening is increased, the occupancy rate per unit area of the sheet base material is reduced by that ratio, which leads to a decrease in the contact area.
This can be compensated for by increasing the sheet thickness. However, when the aperture is actually increased and the thickness is increased, a decrease in capillary attraction is induced. It is the above-mentioned gap 9 that induces this decrease in capillary attraction.
Is. Since this gap exists, the contact portion per unit area decreases when the opening is increased, and the increase in the sheet thickness also increases the gap 9, which causes a decrease in capillary attraction. When the small opening and the sheet thickness are small, there are many contact portions and the gap 9 is small, so it is possible to generate a certain amount of capillary attraction, but the opening becomes large and the sheet thickness increases. This causes a problem.

In the present invention, as shown in FIG. 6, the top portion 10 at the joint 4 of the stretched wire mesh sheet is compressed or cut to reduce the gap 9 to increase the capillary attraction force. Regarding the reduction of the gap 9, if it is understood from the viewpoint that the reduction of the gap 9 until it disappears is an increase of the capillary attraction, the diffusion of the liquid can be achieved by the capillary attraction, but it can be captured from the flow of the liquid. On the contrary, since it may hinder the flow, it is more effective to keep the gap of 0.01 mm or more in practice. Further, the reduction of the gap due to the compression can cause the collapse of the sheet base material 11 due to the compression, which is preferable for the generation of the capillary attraction.

According to the present invention, by compressing or cutting the top portion 10 formed in the joint 4 of the stretched wire netting sheet as described above, the opening is enlarged and the sheet thickness is increased. It is up to us to solve the problem that was blocking the occurrence.

[Brief description of drawings]

FIG. 1 is a sheet-shaped substrate before the stretched wire mesh sheet of the present invention is stretched.

FIG. 2 is a plan view showing a state in which the stretched wire mesh sheet of FIG. 1 is stretched.

FIG. 3 is an enlarged view of a joint portion of the extension sheet.

FIG. 4 is a cross-sectional view showing a state of an upper line, a joint, and a lower line.

FIG. 5 is a cross-sectional view showing an upper line, a joint, a lower line, a top and a gap.

FIG. 6 is a cross-sectional view showing a state where the top portion of the stretched wire mesh sheet is reduced.

FIG. 7 is a perspective view showing a compressed collapse.

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[Procedure amendment]

[Submission date] June 18, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Materials and / or packing for heat exchange towers

[Claims]

Detailed Description of the Invention

The present invention relates to a material and / or a packing material for a heat exchange column.

[0002]

2. Description of the Related Art Conventionally, in this type of filler, one expanded wire mesh sheet (expanded metal sheet) and another expanded wire mesh sheet are brought into contact with each other to form a filler sheet. The idea is well known. In addition, as another known one, there is one in which two wire meshes each having a wire diameter of 0.1 mm and a mesh number of about 100 are stacked.

The purpose of using two sheet-like base materials in contact with each other and overlapping them is to bring two sheet-like base materials into contact with each other and superimpose them on each other so as to generate a capillary attraction between the contact surfaces. It is a thing. When the two sheet-shaped base materials are brought into contact with each other and superposed on each other in this manner, the larger the area of the contact portion is, the stronger the capillary attraction is and the wider the liquid is diffused.

This kind of packing material is packed in a substance and / or heat exchange column, and is used to countercurrently flow a liquid and a gas from above and below to bring them into contact with each other to carry out the material and / or heat exchange. Flows downward from above, and gas flows upward from below. Since the liquid has a lower diffusivity when compared with a liquid and a gas, the diffusibility of the liquid has been a problem in this type of filler. For this reason, various methods have been devised, and one of them is a method of contacting two sheet-like base materials such as the above-mentioned wrought wire mesh sheet or wire mesh sheet and superposing them to obtain a capillary attraction. As another method of generating a capillary attraction force, there is also a filler in which lateral lines are sequentially brought into contact with each other depending on the weaving method of one wire netting sheet, and thereby a capillary attraction force is generated.

As described above, when two woven wire net sheets are brought into contact with each other to form a filler sheet, and when the woven wire net sheet has a small opening, the capillary attraction is strong. The larger the opening, the weaker the capillary force tends to be. This is because the contact area per unit area is small. Another important thing for these fillers to function is to take many stages or surfaces for the contact of gas and liquid. However, taking a large number of surfaces does not mean an increase in the mechanical surface area of simply making one sheet-shaped substrate into two pieces, but an increase in the surface area that allows gas and liquid to come into contact with each other. I won't.
Conventionally, in this type of double-layered filler, in order to exert a strong capillary attraction, it is necessary to make the opening small, for example, in the case of a wire mesh, the opening should be about 100 mesh. I won't. As a result, the liquid is held between the contact surfaces of the two sheet-like base materials, and the gas can only come into contact with the liquid only on the outer side of the two sheet-like base materials. However, there is a problem in that the surfaces of the two sheets cannot be substantially provided for the contact between the gas and the liquid. Therefore, when the opening is increased and gas is introduced into the contact surface, the capillary attraction force is reduced, and the diffusion of the liquid is hindered.

This is also the case when the expanded wire mesh sheet and another expanded wire mesh sheet, or other laminated sheet of any of the wire mesh sheet or the thin plate-like sheet, are brought into contact with each other and superposed. It is the same.

That is, in the prior art, there is always the problem of facing each other that increasing the opening of the wrought wire mesh sheet reduces the capillary attraction, and conversely decreasing the opening reduces the chance of contact between gas and liquid. I have it.

[0008]

The present inventors have conducted research to overcome the drawbacks of the prior art. As a result, the gap generated when the wrought wire netting sheet and other sheet-shaped base materials are brought into contact with each other and overlapped can be reduced by compressing and reducing the top portion formed at the joint of the wrought wire netting sheet. As a result, it has been found that the above-mentioned drawbacks can be solved, and the improvement of the performance of the filler according to the present invention has been realized.

That is, the first aspect of the present invention is a tower in which a liquid is supplied from above and a gas is supplied from below, and gas and liquid are brought into contact with each other, thereby performing mass exchange and / or heat exchange between the two. A packing material for a tower, which is vertically arranged along the axis of the tower, wherein a plurality of corrugated continuous folds in which the packing material is inclined with respect to the axis of the tower are formed on the surface. A plurality of sheet-like base materials are laminated so that the fold directions intersect each other, and the fold-processed sheet-like base material is at least one wrought wire netting sheet (A) and a plurality of other plurality. It is formed from three or more sheet-like base materials that are brought into contact with the laminated sheet (B), which is a woven wire mesh sheet, a wire mesh sheet, or a thin plate-like sheet, or a combination of them, The expanded wire mesh Preparative (A) of the mesh opening is 0.2mm or more wrought direction, 0.5 mm in a direction crossing the wrought direction
The above is the interval between adjacent stitches arranged in a zigzag pattern of 0.05 mm or more, and when the expanded wire netting sheet (A) is brought into contact with the laminating sheet (B) and superposed, In order to reduce the gap generated between two sheets due to the unevenness of the wire netting sheet, the tops formed at the joints of the perforated openings and the openings of the expanded wire netting sheet (A) are compressed or cut and contacted. Expanded wire mesh sheet (A) when the face-to-face distance is reduced and the laminated sheet (B) has openings.
The present invention relates to a substance and / or a packing material for a heat exchange column, characterized in that the total area of the openings is larger than the total area of the openings of the laminated sheet (B).

A second aspect of the present invention is a column for supplying a liquid from the upper side and a gas from the lower side to bring the gas and the liquid into contact with each other, thereby performing a substance exchange and / or a heat exchange between the two. Is a packing material for a tower which is vertically arranged inside the column along the axis of the tower, the packing material having a plurality of corrugated continuous folds inclined on the surface of the tower. A plurality of sheet-shaped base materials are laminated so that the fold directions intersect each other, and the fold-processed sheet-shaped base materials are two expanded wire mesh sheets (A) and a plurality of other expanded metal net sheets (A). The sheet-like base material is composed of four or more sheet-like base materials which are brought into contact with and laminated with a laminating sheet (B) in which any one of a wire-drawing mesh sheet, a wire-mesh sheet or a thin plate-like sheet, or a combination thereof, is superposed. Is the above-mentioned expanded wire mesh Alignment stuck between two door sheet (B)
In this case, at least one of the above-mentioned two expanded wire mesh sheets (A) has an opening of 0.2 mm or more in the expansion direction and 0.5 mm in the direction intersecting the expansion direction.
It is above, the space | interval adjacent to the opening which is arranged in zigzag is 0.05 mm or more, and when the said expansion | stretching wire net | sheet (A) contacts the lamination sheet (B) and is extended, it is extended. In order to reduce the gap generated on the contact surface due to the unevenness of the wire mesh sheet, the top portion formed at the joint between the perforated openings and the openings of the wrought wire mesh sheet (A) is compressed or cut and the contact surfaces are In the case where the laminated sheet (B) has openings, the total area of the openings of the expanded wire mesh sheet is larger than the total area of the openings of the laminated sheet (B). Characterized substances and / or packings for heat exchange columns.

Conventionally, in a filler of the type in which a filler sheet is formed by stacking two such sheet-like base materials, the aim is to bring the two sheet-like base materials into contact with each other and stack them. One is to generate a capillary attraction in the form of a surface by bringing the sheet-shaped base material into surface contact. When a capillary attraction is generated on a surface, the liquid spreads on all sides of the surface, so that the diffusion of the liquid that is especially required for these fillings can be achieved.

More specifically, in the case of the wrought wire mesh sheet according to the present invention, even if the opening areas per unit area are the same, there are a plurality of openings rather than one opening and there are many contact points. The more you do, the stronger the capillary attraction. The other aim is to increase the stage for gas-liquid contact, that is, the surface area. When two sheet-like base materials are brought into contact with each other and superposed on each other, the surface area is increased in the sense that only one sheet becomes two sheets. The problem remains in terms of increasing the contact surface area of the liquid.

In the case where the spread wire mesh sheet has a small opening, for example, when the size of the opening is 0.2 mm or less in the expanding direction and 0.5 mm or less in the direction intersecting the expanding direction, the capillary attraction is generated. Even if the diffusion of the liquid due to the above can be achieved, as for the contact between the gas and the liquid, the liquid diffused by the capillary attraction is often diffused inside the contact surface of the sheet-like base material, and therefore The liquid is retained in the opening, and the gas-liquid contact is made only on the outer side portion of the wrought wire mesh sheet. In this case, the gas cannot reach the contact surface and the inside of the opening, that is, it cannot be said that stacking two sheets directly increases the contact area.

As a way of thinking to solve this problem, the following 3
There are two things.

1. Increase the opening of the wrought wire mesh sheet. In this case, it is premised that, in the case of the other laminated sheet, when the sheet has an opening, the opening is smaller than that of the wrought wire netting sheet. In practice, it is preferable that the spread wire mesh sheet has an opening of about 0.5 mm in the spread direction and about 1 mm in the direction intersecting the spread direction.

2. The occupancy rate per unit area of the wire mesh portion of the wrought wire mesh sheet is reduced, in other words, the wire mesh is thinned, and the amount of liquid retained in the contact portion between two sheets is reduced to reduce gas. To reach inside the eyes.

3. Increase the thickness of wrought wire mesh sheet to increase the surface area. In practice, up to about 0.5 mm is used. This is because if the amount is further increased, the liquid may not reach the leading edge of the sheet.

Although the above is mentioned as a method for solving the above problems, a new problem arises in the case of a conventional wrought wire mesh sheet or a filler sheet formed by superposing two wire mesh sheets. is there. The problem and its solution are described below.

Regarding the shape of the wrought wire mesh sheet, the forming method will be described with reference to the drawings. FIG. 1 shows the state of the sheet-shaped base material before the sheet is wrought. Reference numeral 1 is a sheet-shaped substrate, 2 is an upper slit of staggered slits, and 2'is a lower slit. The arrow A indicates the direction of the pulling force when the sheet material is expanded, and indicates that the sheet material is pulled in a direction substantially at right angles. An arrow B indicates a reaction force at the time of pulling, and when pulling, a force is applied in the opposite direction in each of the upper and lower steps of the slit.

FIG. 2 shows the shape of an expanded wire mesh sheet obtained by expanding the slits of the sheet material shown in FIG. Reference numeral 3 is an opening formed by expanding the slit shown by 2 in FIG. 1, and 3'is an opening formed by expanding the slit shown by 2'in FIG. 4 is a joint between the openings. FIG. 3 shows the state of the joint portion. 5 is the upper line and 6 is the lower line. FIG. 4 is a cross-sectional view of the wrought wire mesh sheet shown in FIG. 2 viewed in the direction of arrow C, showing a state in which the upper line and the lower line are continuous. 7
Is another laminated sheet that comes into contact with the wrought wire netting sheet, and 8 is the top formed at the joint.

FIG. 5 is an enlarged view showing the upper line, the joint and the lower line. The arrow b indicates the thickness of the expanded wire mesh sheet. 9 indicates a gap. As can be seen from FIGS. 1 to 5, the wrought wire mesh sheet is formed by stretching a sheet-shaped base material having slits in a zigzag arrangement in the direction of arrow A, and therefore the direction of the opening is the sheet-shaped base material. Is almost right angle to. As a result, a joint 4 is formed between the opening 3 and the opening 3 ', and an upper line 5 and a lower line 6 are formed. When this is continuously stretched over the entire sheet, the shape cross section shown in FIG. 4 is exhibited. As a result, the gap 9 shown in FIG. 5 is produced.

In order to improve the contact between gas and liquid when the wrought wire netting sheet and another laminated sheet are brought into contact with each other and overlapped with each other, the opening of the wrought wire netting sheet in the present invention is set in the stretching direction. 0.2 mm or more and 0. in the direction intersecting the stretching direction.
Although it is 5 mm or more, as for other laminated sheets that come into contact with each other, when the laminated sheet has an opening or a mesh, the total area of the openings of the wrought wire mesh sheet is the same as that of the sheet-shaped substrate. It is a prerequisite of the present invention that the area of the mesh or mesh is always larger than the total area. This is because the combination of two sheet-like base materials is the basis for improving the performance of the filler in the present invention, and the total area of the openings or lines of other laminated sheets is the expanded wire mesh. This is because if it is larger than that of the sheet, the effect of the present invention is completely lost. Also, if the opening is increased, the occupancy rate per unit area of the laminated sheet base material will be reduced by that ratio, resulting in a decrease in the contact area. However, by increasing the sheet thickness , You can make up for this. However, when the aperture is actually increased and the thickness is increased, a decrease in capillary attraction is induced. It is the above-mentioned gap 9 that induces the reduction of the capillary attraction. Since this gap exists, the contact portion per unit area decreases when the opening is increased, and the increase in the sheet thickness also increases the gap 9, which causes a decrease in capillary attraction. When the opening is small and the sheet thickness is small, there are many contact portions and the gap 9 is small, so that a certain amount of capillary attraction can be generated, but when the opening is large and the sheet thickness increases However, there is a problem.

In the present invention, as shown in FIG. 6, the gap 9 is reduced by compressing or cutting the top portion 10 at the joint 4 of the wrought wire netting sheet to increase the capillary attraction. Regarding the reduction of the gap 9, if it is understood from the viewpoint that the reduction of the gap 9 until it disappears is an increase of the capillary attraction, the diffusion of the liquid can be achieved by the capillary attraction, but it can be captured from the flow of the liquid. On the contrary, since it may hinder the flow, it is more effective to keep the gap of 0.01 mm or more in practice. Further, the reduction of the gap due to the compression can cause the collapse of the sheet base material 11 due to the compression, which is preferable for the generation of the capillary attraction.

According to the present invention, as described above, the top portion 10 formed on the joint 4 of the wrought wire netting sheet is compressed or cut to reduce the gap between the wrought wire netting sheet and the laminated sheet. The present invention has solved the problem that the generation of capillary attraction is hindered when the opening is increased and the sheet thickness is increased.

[Brief description of drawings]

FIG. 1 is a sheet-shaped substrate before the stretched wire netting sheet of the present invention is stretched.

FIG. 2 is a plan view showing a state in which the expanded wire mesh sheet of FIG. 1 is expanded to form an expanded wire mesh sheet.

FIG. 3 is an enlarged view of a joint portion of the expanded sheet.

FIG. 4 is a cross-sectional view showing a state of an upper line, a joint, and a lower line.

FIG. 5 is a cross-sectional view showing an upper line, a joint, a lower line, a top and a gap.

FIG. 6 is a cross-sectional view showing a state in which the top portion of the wrought wire mesh sheet is compressed or cut.

FIG. 7 is a perspective view showing a compressed collapse.

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

Claims (2)

[Claims] 1. A liquid is supplied from above and a gas is supplied from below,
A tower packing material which is arranged vertically along the axis of the tower for performing mass exchange and / or heat exchange between the two by bringing gas and liquid into contact with each other, A plurality of sheet-like base materials each having a plurality of corrugated continuous folds on the surface of which the packing material is inclined with respect to the axis of the tower are laminated so that the fold directions intersect each other, and the folds are processed. The above-mentioned sheet-shaped substrate is a laminated sheet (B) in which at least one stretched wire mesh sheet (A) and a plurality of other stretched wire mesh sheets or wire mesh sheets or thin plate-like sheets are laminated individually or in combination. ) Is formed from three or more sheet-like base materials which are brought into contact with each other and are overlapped with each other. In this case, the opening of the above-mentioned stretched wire netting sheet (A) is 0.2 mm or more in the extension direction and 0. When the stretched wire netting sheet (A) having a distance of 0.05 mm or more and the interval between adjacent openings of the staggered pattern of 0.05 mm or more is brought into contact with the laminating sheet (B) and is overlaid, In order to reduce the gap generated on the contact surface due to the unevenness, the top part formed at the joint between the perforations and the openings of the stretched wire mesh sheet is compressed or cut to reduce the contact surface. ) Has openings, the total of the openings of the expanded wire mesh sheet is larger than the total area of the openings of the laminated sheet (B), and / or for a heat exchange tower. Filling material. 2. A liquid is supplied from above and a gas is supplied from below,
A tower packing material which is arranged vertically along the axis of the tower for performing mass exchange and / or heat exchange between the two by bringing gas and liquid into contact with each other, A plurality of sheet-like base materials each having a plurality of corrugated continuous folds on the surface of which the packing material is inclined with respect to the axis of the tower are laminated so that the fold directions intersect each other, and the folds are processed. The above-mentioned sheet-shaped substrate is a laminated sheet (B) in which at least one stretched wire mesh sheet (A) and a plurality of other stretched wire mesh sheets or wire mesh sheets or thin plate-like sheets are laminated individually or in combination. ) Is made up of four or more sheet-like base materials that are brought into contact with each other, and the sheet-like base material is formed by inserting the laminating sheet (B) between the above-mentioned two stretched wire mesh sheets. When the above At least one of the two wire mesh sheets (A) has an opening of 0.2 mm or more in the extending direction and 0.5 mm or more in the direction intersecting the extending direction, and the adjacent openings are arranged in a zigzag pattern. The stretched wire mesh sheet (A) having a gap of 0.05 mm or more is a laminated sheet (B)
In order to reduce the gap that occurs on the contact surface due to the unevenness of the stretched wire mesh sheet when contacting and overlapping with each other, compress or cut the top part that is formed at the joint between the openings and the openings of the stretched wire mesh sheet. If the bonded sheet (B) has openings, the total contact area of the stretched wire mesh sheet is larger than the total area of the openings of the bonded sheet (B). Characteristic substances and / or packings for heat exchange columns.