JPS58174258A - Generator for electrified and atomized particle or electrostatic removal of smoke - Google Patents

Abstract

PURPOSE:To remove the smoke produced with the outbreak of a fire effectively, by utilizing the electrified and atomized particles wherein the effect of static electricity and the effect of atmoization are combined. CONSTITUTION:A discoid electric charge electrode 3 serving also as an atmoizing head is disposed integrally in the head part of a cylindrical body 2 which is freely movable forward and backward and is provided with an air passage 1 for varying a spray shape in the central part. A cylindrical body 7 for guiding air for spraying a liquid agent is so constituted that the air passage 4 for atomization of the liquid agent thereof is formed concentrically on the outside circumference of the body 2 and that the opening end 5 thereof faces the rear 6 of the electrode 3. A cylindrical body 11 for guiding liquid agent is so constituted that the passage 8 for the liquid agent thereof is formed concentrically on the outside circumference of the body 7 and that the opening end 9 thereof faces at least the outside circumferential edge 10 of the electrode 3. An annular electrode 12 is so placed as to face the electrode 3 isolatedly therefrom. More specifically, the atmoized particles of the liquid agent ejecting through the slitlike opening consisting of the opening ends 5, 9 and the rear 6 cross the inside of the electric field formed between the electrode 3 and the electrode 12, and are thus made into the electrified and atmoized particles which stick smoke particles forcibly on the floor surface or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a charged atomizing particle generator for electrostatic smoke extinguishing that makes it possible to reliably and effectively extinguish smoke during a fire occurring inside a building or in a passageway. Regarding.

The smoke that accompanies a fire greatly obstructs visibility, resulting in heated debate over the evacuation of disaster victims, and a major problem in rescue and firefighting operations.

Especially in recent years, with the adoption of new building materials, in the event of a fire,
The reality is that the concentration of smoke containing harmful components is becoming significantly higher, and the number of deaths caused by fires is on the rise.

Conventionally, various measures have been known in which smoke evacuation devices and sprinklers are installed as measures against smoke caused by fire outbreaks, but the reality is that none of them achieve the desired effect.

In view of the above-mentioned circumstances, the present inventors have conducted extensive research and found that by utilizing charged m particles that combine electrostatic action and atomization action, smoke caused by fire outbreaks can be reduced. The headline is that it can effectively eliminate smoke.

The present invention is based on the above findings, and according to the present invention, a cylindrical body that is movable back and forth and that is integrally disposed at the head of a cylinder that is provided with an air passage for changing the spray shape in the center. A liquid mist having a disk-shaped charged electrode that also serves as an atomizing head, and an air passage for atomizing a liquid concentrically formed on the outer periphery of the cylindrical body, and whose open end faces the back surface of the charged electrode that also serves as an atomizing head. an air guide cylinder for atomization, and a liquid agent guide in which a liquid passage is formed concentrically on the outer periphery of the air guide cylinder for atomization, and the opening end thereof faces at least the outer peripheral edge of the charging electrode that also serves as an atomization head. A cylinder and
The electrostatic charger is composed of the charged electrode that also serves as the atomization head and a ring-shaped counter electrode facing away from the atomization head, and is arranged in plural numbers facing downward at appropriate intervals in a room or a passageway of a building. A charged atomizing particle generator for smoke elimination is provided.

φThe first important feature of the present invention is that the bar has a small air consumption and has a diameter of 100 microns or less, preferably 1 micron, which is effective for smoke elimination.
In order to form atomized particles having a relatively uniform particle size distribution of about 0 to 80 microns, a mechanism is used, and the gas-liquid contact is made to collide at right angles.

A second important feature of the present invention is that in order to form charged atomized particles effectively with a simple structure, the atomization head, which is the main part of the atomization forming means, also serves as a charged electrode, Another feature is that ring-shaped electrodes are provided as opposed electrodes at a distance from each other.

Further, the third important feature of the present invention is that in order to effectively use the charged atomized particle generating means having the above configuration,
A plurality of them are arranged downward at appropriate intervals inside the building or in the upper part of the passageway.

Furthermore, another important feature is that an air passage is provided in the center of the charged electrode that also serves as the atomization head, so that the shape of the spray can be easily varied by remote control depending on the amount of smoke. .

Hereinafter, a specific example of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 shows a cylindrical body 20 which is movable back and forth and is equipped with an air passage 1 for changing the shape of the spray in the center; An air guide cylinder 7 for liquid atomization, in which an air passage 4 for atomizing liquid is formed concentrically on the outer periphery of the cylinder 2, and an open end 5 thereof faces a back surface 6 of the charging electrode 3 which also serves as an atomization head. A liquid agent passage 8 is formed concentrically on the outer periphery of the air guide cylinder 7 for liquid atomization, and the opening end 9 thereof faces at least the outer peripheral edge 10 of the charging electrode 3 that also serves as the atomization head. a cylindrical body 11 and a ring-shaped counter electrode 12 that faces and is spaced from the atomizing head charging electrode 3;
Indoor 14 of Tokara Sei, Building] 3 (Aisle is also fine)
1 shows a plurality of charged atomized particle generators for electrostatic smoke elimination according to the present invention, which are disposed downwardly at appropriate intervals in the upper part.

In the present invention, the means for moving the charge electrode 3 which also serves as a charging head back and forth may be, for example, a screw/motor structure known per se, a cylinder +! ni Kiri, furthermore, relatively hard press 7
By doing this, you can push it in or pull it out, and you can arbitrarily choose the simplest method.

Normally, the air pressure supplied to the spray shape variable air passage 1 is approximately 0.5 to 4.0/9/c1n2.

Further, the shape of the atomizing head-cum-charging electrode 3 is not particularly limited, as long as the back surface 6 is flat, the front surface may be convex, concave, or flat. As for the material, it is usually made of a conductor or a semiconductor because it is necessary to apply a high pressure of about 20 to 6[deg.]kV. In theory, a conductive material may be coated on the surface of the insulating material, and there are no restrictions on its use.

In addition, if necessary, the spray shape variable air passage 1
Place an auxiliary airflow deflection plate (not shown) in the opening of the
Variation of the spray shape can also be made more effective, and the selection thereof is free and not restricted in any way. In some cases, the three charging electrodes that also serve as the atomization head may be forced to rotate.

In this embodiment, the important point is that the air guide cylinder 7 for liquid atomization is arranged in one direction, and the liquid wound guide cylinder 1] is arranged outside thereof, and these open ends 5 and 9 and the atomization This is because an annular slit opening is formed between the back surface 6 of the charging electrode 3 which also serves as the head.

That is, this makes it possible to sufficiently and reliably atomize the liquid agent even with a small amount of airflow, and moreover, it is possible to easily form a preferred particle size in accordance with the nature of the smoke.

Normally, the opening ends 5 and 9 are opposed to each other parallel to the back surface 6 and spaced apart from each other at the same interval to form an annular slit-shaped opening.

From the research results of the present invention, the distance between the back surface 6 and the open ends 5 and 9 varies depending on the amount of smoke generated, but generally speaking, the distance between the back surface 6 and the open ends 5 and 9 is 100 microns, which is effective for adsorbing smoke with a sail of about 5 to 3.51 cm. Hereinafter, atomized particles preferably having a size of about 10 to 80 microns can be formed approximately evenly.

Therefore, P]IJ m: The air flow flowing out from the opening end 5 is guided to the outside through the annular slit formed between the opening end 5 and the back surface 6, and collides with the liquid flow from the opening 9. This effectively and reliably miniaturizes the particles to about 10 to 20 microns.

Note that each cylinder 7. 1] may be about 1 to 6 mm thick, and is determined mainly by taking into account aspects such as mechanical strength.

In addition, regarding the material, since the charging electrode 3 to which high voltage is applied is installed next to it, we take into consideration static capacity, current leakage, etc.
Furthermore, it is preferable to use an insulating material to ensure that the atomized particles cross the electric field and are sufficiently charged.

In particular, as in this embodiment, the grid-shaped counter electrode 12 is fixedly supported by the cover member 15, and the cover member 15 is fixedly supported by the cylindrical body 1.
1, it is important that the cylindrical body 11 be made of an insulating material.

The shape of the front memory member 15 is not limited to that of this embodiment, and may be, for example, a cylindrical shape,
The choice is free and unrestricted.

Further, the shape of the grid-like opposing ′-poles 12 is such that the charged ′t
It is sufficient to maintain the relationship between the #L pole 3 and the 8 [polar corona discharge, that is, the relationship between the sharpened end and the plane; for this reason, a plate-like one as shown in this example is best. but,
Alternatively, a spherical shape can also be used as long as the above relationship is maintained from an electrical point of view.

Usually, the distance between the charging electrode 3 and the counter electrode 12 varies depending on the applied voltage, but may be about 3 to 15 cIR.

In this way, 10 to 80 particles are ejected from the slit-like opening.
The liquid atomized particles of about micron size become charged atomized particles by crossing the electric field formed between the charged electrode 3 and the counter electrode 12, and are effectively electrostatically adsorbed to the smoke particles.
In addition, the smoke particles are forcibly attached to the floor surface, side surfaces, etc. by electrostatic coagulation.

Note that 16 is a high voltage generator. Especially as a solvent,
When using water, use an electrically insulated and supported liquid storage tank (
It is also possible to directly connect one of the high voltage cables 17 to a liquid agent (not shown), or to form the connecting portion of the liquid agent passage with a conductive material and supply the liquid through the conductive material.

Furthermore, if it is difficult to electrically insulate and support the liquid agent storage tank (not shown), a high voltage (positive or negative electrode) can be supplied to the counter electrode.

In the present invention, by arranging a plurality of charged atomized particle generating means for electrostatic smoke elimination having the above structure above the indoor 14 of the building 13 or the passageway (not shown) at appropriate intervals, facing downward. The smoke elimination effect can be more assured, the synergistic effect of electrostatic coagulation and gravitational sedimentation can be expected, and the effect of preventing wetting of the electrode can also be expected.

In particular, in terms of placement, it is preferable to place it near the emergency exit and the guide to the emergency exit, in order to ensure the safety of disaster victims.

In addition, the electrostatic smoke extinguishing belt and drying particle generator of the present invention can be controlled manually, but it can also be automatically controlled by controlling it in conjunction with a smoke detector or fire alarm. .

Further, in the second aspect of the present invention, water is generally used as the auxiliary agent, but any fire extinguishing liquid other than water, or even a carbon monoxide absorbing liquid, etc. can be used.

According to the present invention, which is configured as shown in FIG. Since it inevitably wets the surrounding wall surface, it can also prevent the spread of fire.

Further, the present invention can be expected to have similar effects when used for smoke extinguishing in the event of a fire in a tunnel as well as in a building.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view including a partial system diagram of the vessel for explaining the present invention, in which 1 is an air passage for changing the shape of the spray, a charging electrode also serves as a 3Fi atomization head, and 7 is an air guide for liquid atomization. The cylindrical body, 1] is a liquid guide cylinder, 12 is a counter electrode, and 13 is a building.

Claims (1)

[Claims] A disk-shaped charged electrode that also serves as an atomizing head is integrally arranged on the head of a cylindrical body that is movable back and forth and has an air passage for changing the shape of the spray in the center, and a charged electrode that is concentric with the outer periphery of the cylindrical body. an air guide cylinder for liquid atomization, in which an air passage for liquid atomization is formed, and the open end thereof faces the back surface of the charged electrode that also serves as the atomization head; and an outer periphery of the air guide cylinder for liquid atomization. a liquid guide cylinder having a liquid path concentrically formed therein, the opening end of which faces at least the outer periphery of the charging electrode that also serves as the atomizing head; and a ring-shaped opposing member that is spaced apart from and faces the charging electrode that also serves as the atomizing head. 1. A charged atomizing particle generator for electrostatic smoke elimination, characterized in that the device comprises an electrode, and is disposed downwardly at appropriate intervals in the interior of a building or in the upper part of a passageway.