JPH0972692A - Filler unit - Google Patents

Abstract

(57) Abstract: A countercurrent type cooling tower packing material unit capable of preventing generation of white smoke is provided. SOLUTION: A large number of filler plates 1 each having an uneven surface are vertically installed in parallel at a predetermined interval, and a dry heat exchange part a is formed between arbitrary adjacent filler plates 1. Then, the cap plate 2 is disposed so as to straddle the upper end edge of the filler plate 1 constituting the dry heat exchange part a, and the air passage a is provided between the cap plate 2 and the upper end edge of the filler plate 1.
1 is provided. [Effect] The generation of white smoke can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filler unit installed in a countercurrent type cooling tower, and more particularly to a filler unit capable of preventing white smoke from being emitted from an exhaust port during a cold season.

[0002]

2. Description of the Related Art Generally, in a cooling tower, there is a problem that white smoke may be generated from an exhaust port during a cold season, which may have a negative psychological effect on neighboring residents. For example, the white smoke may give a dislike to the neighboring residents as if it pollutes the atmosphere, or the white smoke may be mistaken for a flame by being hit by red light rays such as neon suny.

Therefore, various white smoke prevention measures for a cross flow type cooling tower have been conventionally proposed. For example, Japanese Patent Laid-Open No. 3-754
In No. 95, a large number of filler plates having an uneven surface on which the water to be cooled, which has been sprayed from above flows down, are hung vertically in parallel, and the upper edge of any adjacent filler plates is closed. Alternatively, there has been proposed a filling material unit in which a dry heat exchange section is provided by being covered with an opening / closing cap plate.

[0004]

By the way, when this filler unit is installed in a countercurrent type cooling tower, if the upper edge of the filler plate constituting the dry heat exchange section is closed by a cap plate or the like. Since the dry air generated in the dry heat exchange section escapes from the side edge of the filler plate and is discharged, a sufficient white smoke preventing effect cannot be expected.

The present invention has solved the above problems and provides a filler unit which can be expected to have a sufficient white smoke prevention effect when installed in a countercurrent cooling tower.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a filler unit installed in a countercurrent type cooling tower, in which a large number of filler plates having concave and convex surfaces are vertically installed in parallel at a predetermined interval. While forming a dry heat exchange section between any adjacent filler plates,
A cap plate is arranged so as to straddle the upper end edge of the filler plate constituting the dry heat exchange section, and an air passage is provided between the cap plate and the upper end edge of the filler plate. . It is preferable to close the side edges of the adjacent filler plates constituting the dry heat exchange section.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of a filler unit showing an embodiment of the present invention, FIG. 2 is a perspective view showing another embodiment of the present invention, and FIG. 3 is a front view showing another embodiment of the present invention. In the figure, reference numeral 1 is a filler plate, and 2 is a cap plate.

The filler unit of the present invention is installed in a countercurrent type cooling tower, and the filler plate 1 having an uneven surface is provided.
Is provided in parallel with a predetermined interval. Out of the large number of filler plates 2, a cap plate 2 having a U-shaped cross section is arranged across the upper edges of arbitrary adjacent filler plates 1, and a dry heat exchange section a is formed below the cap plate 2. Has been done. An air passage a1 is provided between the cap plate 2 and the upper end edge of the filler plate 1, and the air rising in the dry heat exchange section a does not escape from the side edge of the filler plate 1 and the air passage It is emitted from a1. A wet heat exchange part b is formed between the filler plates 1 other than the dry heat exchange part a.

In the case of this embodiment, the water to be cooled, which has been sprayed from above, comes into contact with the rising air while passing through the wet heat exchange section b and is cooled by the latent heat of vaporization, and the heat-exchanged air becomes moist air. And rise. On the other hand, in the dry heat exchange part a, the filler plate 1 and the cap plate 23 are heated by the water to be cooled sprinkled from above, and the air rising in the dry heat exchange part a is indirectly heated to be dry air. It is discharged from the air passage a1. The dry air and the moist air are mixed and discharged from the exhaust port of the cooling tower, but since the mixed air is not in a supersaturated state, white smoke is not generated even when discharged from the exhaust port of the cooling tower. .

In the filler unit shown in FIG. 2, the interval between the upper edges of the adjacent filler plates 1 and 1 constituting the dry heat exchange section a is narrowed and the mountain shape is straddled over the upper edges. The cap plate 2 in the shape of a strip is arranged, and the hanging piece 21 of the cap plate 2 and the surface of the filler plate 1 are formed substantially flush with each other. By doing so, the water to be cooled is evenly distributed to the wet heat exchange section b, so that the cooling efficiency does not decrease. Further, the side edges 11 of the adjacent filler plates 1 and 1 constituting the dry heat exchange part a are closed, and the dry heat exchange part a
The dry air that rises above does not escape from the side edge of the filler plate 1, and the water to be cooled that drops from the wet heat exchange section b does not enter the dry heat exchange section a.

In the filling material unit shown in FIG. 3, the cap plate 2 fixed to the upper edge of one adjacent filling material plate 1 is covered with the upper edge of the other filling material plate 1 in a dry type below. The heat exchange part a is formed, and in this case, the same effect as that of the filler unit of the above-described embodiment can be expected.

[0012]

As described in detail above, according to the present invention, a dry heat exchange section is formed between arbitrary adjacent filler plates, and the upper and lower edges of the filler plates constituting the dry heat exchange section are straddled. Since the cap plate is disposed and the air passage is provided between the cap plate and the upper edge of the filler plate, the dry air generated in the dry heat exchange section is discharged from the air passage while rising. It Then, when the side edges of the adjacent filler plates constituting the dry heat exchange section are closed, the dry air rising in the dry heat exchange section escapes from the side edges of the filler plate, or the wet heat exchange is performed. It is possible to reliably prevent the water to be cooled that falls from the part from flowing into the dry heat exchange part. Therefore, when the filler unit of the present invention is installed in the countercurrent type cooling tower, generation of white smoke can be prevented in advance.

[Brief description of drawings]

FIG. 1 is a front view of a filler unit showing an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is a front view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Filler plate 2 Cap plate a Dry heat exchange part b Wet heat exchange part a1 Air passage

Claims (2)

[Claims] 1. A packing material unit installed in a countercurrent cooling tower, wherein a plurality of packing material plates (1) having an uneven surface are vertically laid in parallel with each other at predetermined intervals and adjacent to each other. A dry heat exchange part (a) is formed between the filling material plates (1), and a cap plate (2) straddling the upper edge of the filling material plate (1) constituting the dry heat exchange part (a). Is provided, and an air passage (a1) is provided between the cap plate (2) and the upper edge of the filler plate (1). 2. The filler unit according to claim 1, wherein side edges (11) of adjacent filler plates (1) constituting the dry heat exchange section (a) are closed.