JPH0531406A - Atomizing nozzle - Google Patents

Abstract

PURPOSE:To obtain the atomizing nozzle for volatizing and eliminating efficiently a harmful low boiling point organic substance from water by providing an obstacle in the tip part of a nozzle main body to atomize the water to be atomized in the flow direction. CONSTITUTION:In the tip of a nozzle main body 1, a slit 4 is provided by a slit supporting material 5 so that atomized water 2 is parted in the downstream of the slit 4, and when it has a shape which can cut off the atomized water 2, any shape may suffice. When water to be treated is allowed to pass through, a part of the atomized water 2 comes into collision with the slit 4, and in its downstream, the atomized water 2 is parted, and simultaneously, a hollow conical air flow 3 induced by the atomized water 2 is also parted. As a result, the inside and the outside spaces B, D formed by the atomized water 2 are allowed to communicate with each other through a parting part 21, circulation of air occurs between the spaces B, D, updating of air of the inside space B is executed, volatilization of a low boiling point organic substance in the water is executed in the inside and the outside of the atomized water 2, and the elimination efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing low boiling point organic substances existing in water by vaporizing them into the atmosphere.

[0002]

2. Description of the Related Art As one of the effective methods for removing harmful low-boiling organic matter in water, there is a method of removing the low-boiling organic matter by volatilizing it into the atmosphere. The principle of this method is as follows.

M = k × A × ΔC ... a where, m: volatilization rate of organic substance k: mass transfer coefficient A: contact area of water with air ΔC: concentration difference of organic matter between water and air As one of the purifying devices used, conventionally, as shown in FIG. 3, by spraying water into the atmosphere in the form of a large number of water droplets in the shape of a hollow cone, as shown in FIG.
There is a device for increasing the contact area A between water and air, increasing the volatilization rate (obvious from the equation a), and continuously volatilizing and removing the low-boiling organic matter for purification.

[0004]

In the spray nozzle 6 used in the above-mentioned spray purifying apparatus, the spray water 2 is sprayed at the time of spraying.
Surrounding air is drawn in by viscous force of water in the vicinity, and an air flow 3 having a hollow conical shape is generated around the spray water 2 as shown in FIG. Then, the inner space B formed by the spray water 2 is half closed by the air flow 3, so that the air flow 3 hinders the invasion of fresh air outside the spray water 2 and the inside space B The renewal of fresh air from the outside of the air will be hindered. As a result, the concentration of organic substances in the internal space B formed by the spray water 2 increases, and harmful harmful low-boiling-point organic substances are volatilized from water that is mainly in contact with the air in the internal space B in the spray water 2. However, there is a problem in that the efficiency of volatilization and removal of organic substances becomes poor.

[0005]

SUMMARY OF THE INVENTION The gist of the present invention is a spray nozzle characterized in that an obstacle 4 is provided at the tip of a nozzle body 1 so as to divide the spray water 2 in the flow direction.

[0006]

[Operation] By using the spray nozzle of the present invention, harmful low-boiling organic substances can be efficiently volatilized and removed from water. As shown in FIG. 1, the spray water 2 is partially cut off in the flow direction by a slit 4 which is an obstacle provided at the tip of the nozzle. Then, the hollow conical air flow 3 induced by the spray water 2 is also partially divided in the flow direction. For this reason, the circulation of air between the spaces B and D inside and outside the spray water 2 is promoted through the dividing portion 21 (in the past, the space inside the spray water is halfway due to the air flow 3 having the hollow conical shape). Since it was closed and the update of air was hindered), the update of the air in the space B in the spray water 2 with the fresh air will be promoted. As a result, volatilization and removal of organic substances becomes active even inside the spray water 2, and the volatilization and removal of low boiling point organic substances from water can be efficiently performed.

[0007]

EXAMPLES The present invention will be described below with reference to examples.
Of course, the present invention is not limited to the following embodiments without departing from the spirit of the invention. FIG. 1 shows an embodiment of the present invention.

The spray nozzle of this embodiment has a nozzle body 1
At the tip of the, the slit 4 with the slit support material 5, the spray water 2
Is provided downstream of the slit 4. Although the slit 4 has a triangular cross-sectional shape in FIG. 1, the slit 4 is not particularly limited to this shape, and may have any shape as long as it can cut off the spray water 2. In addition, in FIG.
Although the slit 4 is composed of one constituent member, since the slit 4 need only be in the spray water 2, the slit 4 may not be provided in a portion where the spray water 2 does not collide, and in the embodiment shown in FIG. As can be seen, the slit may have a shape cut at the center, and the number thereof is not limited to two and may be any number.

Next, the operation of water purification by the spray nozzle will be described. When the water to be treated is passed through the spray nozzle, the water becomes small droplets and is sprayed into the air. At this time, since there is a slit 4 at the tip of the nozzle body 1, part of the spray water 2 collides with the slit 4 and the spray water 2 is divided downstream thereof, and at the same time, a hollow cone induced by the spray water 2 The air flow 3 is also divided.

As a result, the inner and outer spaces B and D formed by the spray water 2 are communicated with each other via the dividing portion 21 where the spray water 2 and the air flow 3 are cut off. The air circulates between them, the air in the inner space B is renewed, and the low-boiling organic matter in the water is volatilized inside and outside the spray water 2.

[0011]

As described above, in the spray nozzle of the present invention, since the air in the space inside the spray water is frequently renewed, the volatilization of organic substances is good on both the inside and outside spaces of the spray water, and the removal efficiency is improved. Get better.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

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

FIG. 3 is a perspective view showing a conventional example of the present invention.

[Simple explanation of symbols]

 1 Nozzle body 2 Spray water 21 Dividing part 3 Air flow 4 Obstacle (slit) 5 Slit support material B Spray water inner space D Spray water outer space

Front page continuation (72) Inventor Norihiko Kawamura 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor, Atsuko Kishimoto 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works

Claims (1)

Claims: 1. A spray nozzle, wherein an obstacle 4 is provided at the tip of a nozzle body 1 so as to divide the spray water 2 in the flow direction.