JPS5827265Y2 - White smoke prevention device in cooling tower - Google Patents

Description

[Detailed explanation of the invention] The exhaust air from the cooling tower is high temperature and almost saturated air, and when this air is exhausted from the exhaust port and comes into contact with the surrounding low temperature air, two parts of the water vapor in the exhaust gas is It condenses into water droplets, generates fog, and becomes so-called white smoke, which obstructs visibility and sunlight, causing various environmental problems.

The present invention prevents the occurrence of such white smoke and noise, and will be explained with reference to the drawings.

A shows a generally known cooling tower in which an axial flow blower 2 is installed in an upper exhaust port 1, and a cooling tower, for example, a third
A long strip 6 with a gutter-shaped cross section as shown in the figure is spirally wound with the concave portion as the inner surface, and the joint portion is welded to form a cylindrical shape with an appropriate height, and a spiral strip 6 is formed on the inner circumferential surface. shaped concave groove 4
A wind cylinder 3 having a wind cylinder 3 is connected to the exhaust port 1, and one or more outside air introduction ports 5 are opened in the lower part of the wind cylinder 3.

In the present invention, when saturated humid air is discharged from the cooling tower A by driving the blower 2, outside air is introduced into the wind barrel 3 through the inlet 5, attracted by the discharged exhaust a, and this outside air is When the air rises with air a, it is guided by the spiral groove 4 in the wind barrel 3 and flows as a swirling flow, so that the exhaust gas a discharged from the cooling tower A is surrounded by the swirling outside air. During this time, part of the outside air mixes with the saturated exhaust gas to suppress the formation of fog, and the centrifugal force of the rotating outside air causes condensed water droplets in the discharged exhaust a to be shaken out and removed. The generation of white smoke can be suppressed, and since the exhaust gas a released by the blower 2 is surrounded by swirling outside air and exhausted, it does not directly hit the wind cylinder 3 surface, and the impact sound and resonance sound are reduced and the exhaust is exhausted. This has the effect of reducing noise.

In this way, according to the present invention, the wind cylinder 3 is provided in connection with the exhaust port 1, the outside air introduction port 5 is opened below it, and the spiral groove 4 is provided on the inner peripheral surface of the wind cylinder 3. Since the exhaust gas a discharged from the cooling tower A by the blower 2 is surrounded and discharged by the swirling flow of outside air, the generation of white smoke is suppressed by a simple means, and the exhaust noise is reduced. The wind cylinder 3 having a concave groove 4 is formed by forming a cylindrical shape with an appropriate height by spirally turning a strip 6 having a gutter-like cross section with its concave surface as an inner surface, so that the spiral groove 4 on the inner surface is formed. This has the effect of being extremely simple.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of a cooling tower equipped with the device of the present invention, FIG. 2 is a cutaway side view of the main parts thereof, and FIG. 3 is a perspective view showing an example of the materials for manufacturing the wind cylinder. A...Cooling tower, 1...Exhaust port, 2...
...Axial flow blower, 3...Wind cylinder, 4...
...Spiral groove, 5...Outside air inlet.

Claims (1)

[Scope of utility model registration request] The axial blower 2 installed in the exhaust port 1 is surrounded by a strip 6 having a gutter-like cross section, which is turned spirally with its concave portion as the inner surface, to form a cylindrical shape with an appropriate height, and a spiral groove is formed on the inner circumferential surface. This white smoke prevention device for a cooling tower is formed by forming a wind barrel 3 having a wind barrel 3 and having an outside air inlet 5 opened at the bottom of the wind barrel 3.