JPS5836601B2 - Packing for gas-liquid contact - Google Patents

Description

[Detailed Description of the Invention] This invention is a nicum-like gas-liquid contact filler (hereinafter simply "
It is called "honeycomb".

), especially when this packing is packed in a gas-liquid contact tower such as a cooling tower or an absorption tower. It is something that

In general, gas-liquid contact fillers are mainly classified into film type and splash type fillers.

That is, the former uses liquid in the form of a thin film, and the latter uses minute water droplets in the form of droplets to effect gas-liquid contact.

Among these film-type packing materials, there is No-Nikam, which has a well-known shape with many hexagonal holes arranged in a honeycomb pattern, and is mainly used in towers such as cooling towers and gas absorption towers. In addition to being used as a filler for gas-liquid contact, as a special example, honeycombs are immersed in water and aerobic microorganisms are propagated on the walls of the honeycomb, which is used for microbial treatment of wastewater from municipal waste incinerators, factories, and other places. It is used in aeration towers in catalytic oxidation methods.

Traditionally, this type of honeycomb has been manufactured by applying adhesive to paper or plastic sheets at regular intervals, stacking them, and then pulling them in the stacking direction. I was doing things like getting.

As shown in FIG. 1, for example, two cams 2 are stacked in multiple stages and filled inside the body of the cooling tower 1, but the air in the passages 3 formed by the honeycombs 2 in each stage is liquid,
That is, the spray liquid L and the inflow gas G that are sprayed from the spray device 4 in the upper part of the tower and also flowed through the inlet 5 at the bottom of the tower body and entered the respective passages 3 are not dispersed to other passages at all.
The liquid L that passes through the channels perpendicular to each other, undergoes heat exchange and flows down, is discharged from the drain port 6 at the lower end of the tower body and returned to the source of use via a conduit. Gas G blown up by the suction force of a fan driven by a motor is released into the atmosphere from an exhaust port 7 at the upper end of the tower body (both not shown).

However, in large-scale gas-liquid contact towers, when a drift of gas and liquid occurs, it is not dispersed to other passages, so the gas-liquid flows only in some passages, resulting in a severe deterioration in performance.

In addition, if you want to improve the dispersion of gas and liquid in the honeycomb, you can stack the honeycombs with gaps between them, but the more stacked the honeycombs are, the larger the gaps will be, and the specific surface area per unit volume in the tower will decrease. This has the drawback of causing a large drop in performance.

This invention solves the above-mentioned drawbacks, and consists of stacking packing materials for gas-liquid contact in a shape in which part of the Nicum partition wall is omitted in a specific state to form a packing material, and then inserting the packing material into the column. By filling the honeycomb, passages can be substantially formed in the honeycomb, and gas-liquid dispersion from each passage to other passages can be improved to significantly improve performance.

The present invention will be explained with reference to the embodiments shown in the attached figures below.
As shown in the figure, in the case of figure a, three adjacent honeycombs are each considered as one unit, and the Y-shaped partition walls 10 (indicated by broken lines)
In the case of Fig. b, four pieces are taken as one unit, and the partition walls 11 shown in broken lines are omitted to form a gas-liquid contact filler of a required size.

However, it is not limited to the shapes shown in FIGS. a and b, but may be any other shape in which partition walls are omitted, or a shape in which partition walls are omitted so as to combine these shapes.

In order to omit the partition walls in this way, the gas-liquid contact filler of the present invention is usually manufactured by integral molding by injection molding, etc., without cutting out the partition walls in the honeycomb.

If this gas-liquid contact packing material is stacked in multiple stages inside the column body of the gas-liquid contact tower by alternately shifting it by 180 degrees or turning it over, the result will be as shown in Figure 3. When the multi-tiered state is viewed from above, a pair of the n-th stage filler (shown by solid line) 2 and the n + 1-th stage filler material (shown by broken line) 2 substantially forms a Nicum passage 3. The gas and liquid are not limited to only one passage, but are dispersed and passed through other passages.

Therefore, it is extremely effective in improving performance by eliminating drifting after the gas and liquid are sufficiently dispersed within the packing.

[Brief explanation of drawings]

Figure 1 is a schematic explanatory diagram of a cooling tower filled with filler;
The figure is an explanatory diagram showing an example of the filler used in the present invention,
FIG. 3 is an enlarged plan view of a case where the filling materials shown in FIG. 2A are stacked in multiple stages to form a filling. 2...Filling material, 3...Honeycomb passage,
io, 1i... Honeycomb partition wall.

Claims (1)

[Claims] 1. When filling materials in the shape of a part of the Nicum partition wall are omitted are stacked vertically in multiple stages, and when this multi-stage stacked state is viewed from a plane, a set of upper and lower filling materials adjacent to each other will substantially create a - A gas-liquid contact packing characterized by being combined so as to form a nicum passage.