WO2013171880A1

WO2013171880A1 - Fire prevention apparatus, charge dispersion apparatus, charge dispersion head, method for dispersing fire-extinguishing agent, and method for dispersing charge

Info

Publication number: WO2013171880A1
Application number: PCT/JP2012/062654
Authority: WO
Inventors: 利秀 ▲辻▼; 吉田　哲雄
Original assignee: ホーチキ株式会社
Priority date: 2012-05-17
Filing date: 2012-05-17
Publication date: 2013-11-21
Also published as: KR20150016484A; KR101958514B1

Abstract

A fire prevention apparatus is provided with: fire-extinguishing agent supply equipment for supplying an aqueous fire-extinguishing agent through a pipe; a charge dispersion head which is installed in a protected section and charges and disperses sprayed particles of fire-extinguishing agent supplied by means of the fire-extinguishing agent supply equipment; and a voltage application unit for applying a charged voltage to the charge dispersion head. The charge dispersion head is provided with: a nozzle for spraying fire-extinguishing agent into an external space; a fire-extinguishing agent-side electrode part which is disposed inside the nozzle in contact with the fire-extinguishing agent; a deflection and dispersion member which deflects the fire-extinguishing agent exiting the nozzle in any direction to form a thin-film flow and then splits and disperses this flow into particle group flows; and a dielectric electrode which is disposed in the region where the thin-film flow is split.

Description

Fire prevention device, electrostatic spraying device, electrostatic spraying head, extinguishing agent spraying method and electrostatic spraying method

The present invention relates to a fire disaster prevention device, a charging spraying device, a charging spraying head, a fire extinguishing agent spraying method, and a charging spraying method in which a water-based fire extinguishing agent containing water, seawater, a fire extinguishing agent and the like is charged and sprayed from a head.

Conventionally, in the event of a fire, by charging the extinguishing agent particles sprayed from the charging spray head, the Coulomb force acting between the extinguishing agent particles and the fire extinguisher and smoke particles is used, and the three-dimensional and high power to the combustion product It is known that a high fire extinguishing and smoke extinguishing performance can be obtained by increasing the efficiency of the wetting effect and the smoke capturing effect (Patent Document 1).

FIG. 9 shows a conventional charge spraying head. In FIG. 9, the charge spreading head 100 has a head main body 136 screwed and fixed to the tip of a falling pipe 134 connected to the pipe from the pump unit, and the head main body 136 has a cylindrical shape via an insulating member 141 inside the tip. The water side electrode part (extinguishing agent side electrode part) 140 is incorporated.

A ground cable 150 drawn from a voltage application unit (not shown) is connected to the water side electrode unit (extinguishing agent side electrode) 140 through the insulating member 141, and the water side electrode unit 140 is connected to the ground side. ing.

An injection nozzle 138 is provided on the lower side of the water-side electrode unit 140 in the figure, and includes a nozzle rotor 138a provided inside the water-side electrode unit 140 and a nozzle head 138b provided on the tip side. The injection nozzle 138 receives the pressure-supplied extinguishing agent from the falling pipe 134, converts it into a swirling flow by the nozzle rotor 138a, and then injects it from the nozzle head 138b to convert the extinguishing agent into a particle group flow. And spray.

A cover 142 made of an insulating material is fixed to the injection nozzle 138 with a screw through a fixing member 143, and a ring-shaped induction electrode portion 144 is incorporated into an opening on the lower side of the cover 142 to stop the cover. Screwed together with the ring. The ring-shaped induction electrode portion 144 forms an opening through which the fire-extinguishing agent spray particles from the spray nozzle 138 pass at the center of the ring-shaped main body. An electrode application cable 148 from a voltage application unit provided outside is connected to the ring-shaped induction electrode unit 144.

When spraying the fire extinguishing agent from the charging spray head 100, the water-side electrode portion 140 is set to the ground side at 0 volts, and the ring-shaped induction electrode portion 144 has a direct current, alternating current, or pulse of about several KV to several tens of KV, for example. An applied voltage (charging voltage) is applied. By applying this voltage, an external electric field is generated between both electrodes, and the extinguishing agent is affected by the external electric field through an injection process in which the extinguishing agent is converted into a particle swarm from the injection nozzle 138. The charged particle group stream can be dispersed outside.

Japanese Unexamined Patent Publication No. 2009-106405

According to such conventional spraying of a fire extinguishing agent using a charged spraying (spraying) head, for example, when the fire extinguisher is water, the amount of water required for fire extinguishing or smoke extinction is compared with the amount of spraying water required by an uncharged spraying head. Can be greatly reduced. However, when the scale of a fire is large, the amount of water required by the charged spraying head is considerably smaller than that by an uncharged spraying head, but the minimum amount of heat generated by the fire can be absorbed. It is necessary to disperse the amount of water from which the total specific heat and latent heat of vaporization can be obtained. If the amount of water is insufficient, the desired effect cannot be obtained. Thus, when the scale of the fire is large, it is natural that a charged spraying head with a large amount of water is required.

However, in the conventional charging / spreading head 100 shown in FIG. 9, the particle stream is generated by rotating the water flow with the nozzle rotor 138a of the head body 136 and spraying and radiating from the spray nozzle 138 using centrifugal force. In this conventional electrification spray pattern, the charge amount per unit water volume decreases as the spray amount increases, and the fire extinguishing and smoke eliminating effect due to coulomb force is enhanced. The problem that the action is reduced has been confirmed by experiments of the present inventors.

FIG. 10 is a ratio of the average charge amount per unit amount of charged spray water measured by the Faraday cage method when the charging voltage applied to the conventional charge spray head 100 shown in FIG. 9 is constantly +5 KV. The specific charge indicating the average charge amount is smaller as the spray amount increases (the head becomes larger).

Further, in the charge spraying head 100 that applies the rotation to the conventional water flow and sprays and radiates using the centrifugal force from the spray nozzle 138, the spraying angle (spreading angle) of the extinguishing agent is about 90 degrees at most and the flight distance is also at most. Since it is comparatively short, there also exists a problem that a charge extinguishing agent cannot be spread over a wide range.

The aspect according to the present invention is a fire disaster prevention device, a charge spraying device (equipment), and a charge spraying (spraying) that secures a sufficient charge amount even when the spraying amount increases and exhibits a high fire extinguishing and smoke eliminating effect using Coulomb force. It is an object to provide a head, a fire extinguishing agent spraying method, and a charge spraying method.

Further, according to the present invention, there are provided a fire disaster prevention device (equipment), a charging spraying device, a charging spraying (spraying) head, a fire extinguishing agent spraying (spraying) method, and a charging method. The purpose is to provide a spraying method.

(Fire disaster prevention device A)
(1) The fire disaster prevention device according to one aspect of the present invention is:
A fire extinguisher supply facility for supplying a water-based fire extinguisher via a pipe;
A charged spraying head that is installed in a protective compartment and is charged and sprayed on fire-extinguishing agent spray particles supplied by a fire-extinguishing agent supply facility;
A fire-prevention device comprising a voltage application unit for applying a charging voltage to the electrostatic spraying head,
The electrostatic spraying head
A nozzle for injecting fire extinguishing agent into the external space;
A fire extinguishing agent side electrode portion that is arranged inside the nozzle and contacts the extinguishing agent;
A deflection spray member that deflects the fire extinguishing agent from the nozzle in an arbitrary direction to form a thin film flow, and then splits and splits the particle group flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
Is provided.

(2) In the aspect of the above (1), the deflecting and dispersing member may be a deflector having a cone shape or a pyramid shape that deflects the fire extinguishing agent from the nozzle into a conical or pyramidal thin film flow.

(3) In the above aspect (1), the induction electrode portion may be any one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
(4) In the above aspect (1), part or all of the induction electrode portion may be covered with an insulating material.

(5) In the aspect of the above (1), the extinguishing agent side electrode section may be at least a part of the extinguishing agent supply flow path in the electrification spraying head, or a nozzle.

(6) In the above aspect (1), the voltage of the extinguishing agent side electrode portion may be set to a predetermined reference value, and a predetermined charging voltage may be applied to the induction electrode portion.
(7) In the above aspect (6), a predetermined charging voltage in a direct current, alternating current, or pulse shape may be applied to the induction electrode portion.

(Extinguishing agent charging spray head A)
(8) A charge spraying head according to an aspect of the present invention is installed in a protective section and sprayed by applying a charging voltage from a voltage application unit to spray particles of a fire extinguisher supplied by a fire extinguisher supply facility. A charging spray head that
A nozzle for injecting fire extinguishing agent into the external space;
A fire extinguishing agent side electrode portion that is arranged inside the nozzle and contacts the extinguishing agent;
A deflection spray member that deflects the fire extinguishing agent from the nozzle in an arbitrary direction to form a thin film flow, and then splits and splits the particle group flow; and
An induction electrode portion disposed in the vicinity of the splitting and separating portion of the thin film flow.

(9) to (14) In the above aspect (8), the same configuration as the above aspects (2) to (7) may be adopted.

(Spraying method A)
(15) A spraying method according to one aspect of the present invention is a fire disaster prevention apparatus,
In the event of a fire, supply a water-based fire extinguisher to the electrostatic spraying head installed in the protection zone via a pipe,
The fire extinguishing agent sprayed from the charging and spraying head is deflected in an arbitrary direction to form a thin film flow, and then divided and dispersed into a particle group flow.

(16) In the aspect of the above (15), the charging spray head is
A nozzle for injecting fire extinguishing agent into the external space;
A fire extinguishing agent side electrode portion that is arranged inside the nozzle and contacts the extinguishing agent;
A deflection spray member that deflects the fire extinguishing agent from the nozzle in an arbitrary direction to form a thin film flow, and then splits and splits the particle group flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
With
An external electric field generated by applying a voltage between the induction electrode portion and the extinguishing agent side electrode portion may be applied to the extinguishing agent in the vicinity of the splitting separation portion of the thin film flow by the deflecting and spreading member to be charged.

(17) to (22) In the above aspect (15), the same configuration as the above aspects (2) to (7) may be adopted.

(Fire disaster prevention equipment B)
(23) The fire disaster prevention device of one aspect according to the present invention is:
A fire extinguisher supply facility for supplying a water-based fire extinguisher under pressure through a pipe;
A charged spraying head that is installed in a protective compartment and is charged and sprayed on fire-extinguishing agent spray particles supplied by a fire-extinguishing agent supply facility;
A voltage application unit for applying a charging voltage to the charging and spreading head;
A fire disaster prevention device comprising:
The electrostatic spraying head
A nozzle for injecting fire extinguishing agent into the external space;
A fire extinguishing agent side electrode portion that is arranged inside the nozzle and contacts the extinguishing agent;
A first deflecting spraying member that splits a part of the fire extinguishing agent from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates the particles into a particle group flow;
A first induction electrode portion disposed in the vicinity of the splitting separation portion of the first thin film flow;
A second deflecting spraying member for sprinkling the remainder of the fire extinguishing agent exiting from the nozzle to form a second thin film stream that is located outside the first thin film stream and deflects in the same direction, and then splits and separates the particle stream;
And a second induction electrode portion disposed in the vicinity of the splitting and separating portion of the second thin film flow, and the particle group flow is dispersed in a double cone shape.

(24) In the aspect of the above (23), the nozzle has a center nozzle hole and a ring-shaped nozzle hole formed coaxially around the rear thereof, and the first deflecting and spreading member receives the fire extinguishing agent discharged from the center nozzle hole of the nozzle. A first deflector having a conical or pyramidal shape deflecting into a conical or pyramidal thin film flow;
The second deflecting and spreading member may be a second deflector having a conical shape or a pyramid shape that deflects the extinguishing agent discharged from the ring-shaped nozzle hole of the nozzle into a conical or pyramidal thin film flow.

(25) In the above aspect (23), the first induction electrode portion and the second induction electrode portion may be any one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.

(26) In the above aspect (23), part or all of the first induction electrode portion and the second induction electrode portion may be covered with an insulating material.

(27) In the above aspect (23), the extinguishing agent side electrode portion may be at least a part of a supply flow path of the extinguishing agent in the charging spray head, or a nozzle.

(28) In the above aspect (23), even if a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion, the voltage of the extinguishing agent side electrode portion is set to a predetermined reference value. Good.
(29) In the aspect of the above (28), a predetermined charging voltage having a direct current, an alternating current, or a pulse shape may be applied to the first induction electrode portion and the second induction electrode portion.

(30) In the aspect of the above (23), a different number of deflection distribution members may be provided for one or a plurality of induction electrode portions as the charge distribution head.

(31) In the above aspect (30), a plurality of sets of deflection distribution members having different numbers may be provided for one or a plurality of induction electrode portions as the charge distribution head.

(Extinguishing agent charging spray head B)
(32) A charging spray head according to an aspect of the present invention includes:
A charge spraying head that is installed in a protective section and sprays the sprayed particles of the fire extinguisher supplied by the fire extinguisher supply equipment by charging by applying a charging voltage from a voltage application unit,
A nozzle for injecting fire extinguishing agent into the external space;
A fire extinguishing agent side electrode portion that is arranged inside the nozzle and contacts the extinguishing agent;
A first deflecting spraying member that splits a part of the fire extinguishing agent from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates the particles into a particle group flow;
A first induction electrode portion disposed in the vicinity of the splitting separation portion of the first thin film flow;
A second deflecting spraying member for sprinkling the remainder of the fire extinguishing agent exiting from the nozzle to form a second thin film stream that is located outside the first thin film stream and deflects in the same direction, and then splits and separates the particle stream;
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
The particle swarm is dispersed in a double cone shape.

(33) to (40) In the above aspect (32), the same configuration as the above aspects (24) to (31) may be adopted.

(Spreading method B)
(41) A spraying method according to one aspect of the present invention is a fire disaster prevention apparatus,
In the event of a fire, supply a water-based fire extinguisher to the electrostatic spraying head installed in the protection zone via a pipe,
Part of the fire extinguisher sprayed from the charging spray head is deflected in an arbitrary direction to form a first thin film flow, and then split and dispersed into a particle group flow. Apply an electric field to charge,
The remainder of the fire extinguisher sprayed from the charging spray head is dispersed outside the first thin film flow and formed in the same direction and then split into particle groups and sprayed. Applying an external electric field near the split separation part of
A particle swarm is dispersed in a double cone shape.

(42) In the above aspect (41), the charging spray head is
A nozzle for injecting fire extinguishing agent into the external space;
A fire extinguishing agent side electrode portion that is arranged inside the nozzle and contacts the extinguishing agent;
A first deflecting spraying member that splits a part of the fire extinguishing agent from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates the particles into a particle group flow;
A first induction electrode portion disposed in the vicinity of the splitting separation portion of the first thin film flow;
A second deflecting spraying member for sprinkling the remainder of the fire extinguishing agent exiting from the nozzle to form a second thin film stream that is located outside the first thin film stream and deflects in the same direction, and then splits and separates the particle stream;
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
With
An external electric field generated by applying a voltage between the first induction electrode part and the extinguishing agent side electrode part,
An external electric field generated by applying a voltage between the second induction electrode portion and the extinguishing agent side electrode portion while applying and charging the extinguishing agent in the vicinity of the splitting portion of the first thin film flow by the first deflecting and spreading member. In addition, the second thin film flow by the second deflecting and spreading member may be charged by being applied to a fire extinguishing agent in the vicinity of the splitting and separating portion.

(43) to (50) In the above aspect (41), the same configuration as the above aspects (24) to (31) may be adopted.

(Charging sprayer A)
(51) One aspect of the present invention is a charge spraying device,
A spray agent supply facility for supplying a water-based spray agent via a pipe;
A charged spraying head installed in a spraying section and charged by spraying spray particles of spraying agent supplied by a spraying agent supply facility;
A charging application device comprising a voltage application unit for applying a charging voltage to the charging application head,
The electrostatic spraying head
A nozzle that sprays the spray agent into the external space;
A spraying agent side electrode part that is arranged inside the nozzle and contacts the spraying agent;
A deflecting spraying member that splits and sprays a particle group flow after forming a thin film flow by deflecting the spraying agent from the nozzle in an arbitrary direction;
An induction electrode portion disposed in the vicinity of the splitting and separating portion of the thin film flow.

(52) to (57) In the above aspect (51), the same configuration as in the above aspects (2) to (7) may be adopted. However, the fire extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device A are read as the spraying agent and the spraying agent side electrode part.

(Spraying agent charging spray head A)
(58) A charge spraying head according to one aspect of the present invention is installed in a spraying section and sprayed by spraying spray particles of a spraying agent supplied by a spraying agent supply facility by applying a charging voltage from a voltage applying unit. A charging spray head that
A nozzle that sprays the spray agent into the external space;
A spraying agent side electrode part that is arranged inside the nozzle and contacts the spraying agent;
A deflecting spraying member that splits and sprays a particle group flow after forming a thin film flow by deflecting the spraying agent from the nozzle in an arbitrary direction;
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
Is provided.

(59) to (64) In the above aspect (58), the same configuration as in the above aspects (2) to (7) may be adopted. However, the fire extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device A are read as the spraying agent and the spraying agent side electrode part.

(Charging spraying method A of the charging spraying device)
(65) In one aspect of the present invention, a method for charging and dispersing a charge in a charging and dispersing device,
Supply the water-based spraying agent to the electrifying spraying head installed in the spraying section via the pipe,
A spraying agent sprayed from a charging spraying head is deflected in an arbitrary direction to form a thin film flow, and then divided and dispersed into a particle group flow, and an external electric field is applied near the splitting and separating portion of the thin film flow to be charged.

(66) In the aspect of the above (65), the charging spray head is
A nozzle that sprays the spray agent into the external space;
A spraying agent side electrode part that is arranged inside the nozzle and contacts the spraying agent;
A deflecting spraying member that splits and sprays a particle group flow after forming a thin film flow by deflecting the spraying agent from the nozzle in an arbitrary direction;
An induction electrode portion arranged in the vicinity of the splitting separation portion of the thin film flow,
An external electric field generated by applying a voltage between the induction electrode part and the spraying agent side electrode part may be applied to the spraying agent in the vicinity of the splitting separation part of the thin film flow by the deflecting spraying member to be charged.

(67) to (72) In the above aspect (65), the same configuration as in the above aspects (2) to (7) may be adopted. However, the fire extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device A are read as the spraying agent and the spraying agent side electrode part.

(Charging sprayer B)
(73) One aspect of the present invention is a charge spraying device,
A spray agent supply facility for supplying a water-based spray agent via a pipe;
A charged spraying head installed in the spraying section and charged by spraying spray particles of spraying agent pressurized and supplied by a spraying agent supply facility;
A voltage application unit for applying a charging voltage to the charging and spreading head;
An electrostatic spraying device comprising:
The electrostatic spraying head
A nozzle that sprays the spray agent into the external space;
A spraying agent side electrode part that is arranged inside the nozzle and contacts the spraying agent;
A first deflecting spraying member that splits and sprays a part of the spraying agent exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates it into a particle group flow;
A first induction electrode portion disposed in the vicinity of the splitting separation portion of the first thin film flow;
A second deflecting spraying member for sprinkling and dispersing the remaining spray agent from the nozzle into a particle group stream after forming a second thin film stream that is positioned outside the first thin film stream and deflects in the same direction;
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
The particle swarm is dispersed in a double cone shape.

(74) to (81) In the above aspect (73), the same configuration as the above aspects (24) to (31) may be adopted. However, the fire extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device B are read as the spraying agent and the spraying agent side electrode part.

(Spraying agent spraying head B)
(82) A charge spraying head according to an aspect of the present invention is installed in a spraying section and sprayed by spraying spray particles of a spraying agent supplied by a spraying agent supply facility by applying a charging voltage from a voltage application unit. A charging spray head that
A nozzle that sprays the spray agent into the external space;
A spraying agent side electrode part that is arranged inside the nozzle and contacts the spraying agent;
A first deflecting spraying member that splits and sprays a part of the spraying agent exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates it into a particle group flow;
A first induction electrode portion disposed in the vicinity of the splitting separation portion of the first thin film flow;
A second deflecting spraying member for sprinkling and dispersing the remaining spray agent from the nozzle into a particle group stream after forming a second thin film stream that is positioned outside the first thin film stream and deflects in the same direction;
And a second induction electrode portion disposed in the vicinity of the splitting and separating portion of the second thin film flow, and the particle group flow is dispersed in a double cone shape.

(83) to (90) In the above aspect (82), the same configuration as the above aspects (24) to (31) may be adopted. However, the fire extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device B are read as the spraying agent and the spraying agent side electrode part.

(Charging spraying method B for charging spraying equipment)
(91) According to one aspect of the present invention, there is provided a charge spraying method comprising:
Supply the water-based spraying agent to the electrifying spraying head installed in the spraying section via the pipe,
A part of the spraying agent sprayed from the charging spraying head is deflected in an arbitrary direction to form a first thin film flow, and then divided and dispersed into a particle group flow. Apply an electric field to charge,
The remainder of the spraying agent sprayed from the charging spraying head is dispersed outside the first thin film flow and formed in a second thin film flow deflected in the same direction. Applying an external electric field near the split separation part of
A particle swarm is dispersed in a double cone shape.

(92) In the above aspect (91), the charging spray head is
A nozzle that sprays the spray agent into the external space;
A spraying agent side electrode part that is arranged inside the nozzle and contacts the spraying agent;
A first deflecting spraying member that splits and sprays a part of the spraying agent exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates it into a particle group flow;
A first induction electrode portion disposed in the vicinity of the splitting separation portion of the first thin film flow;
A second deflecting spraying member for sprinkling and dispersing the remaining spray agent from the nozzle into a particle group stream after forming a second thin film stream that is positioned outside the first thin film stream and deflects in the same direction;
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow,
An external electric field generated by applying a voltage between the first induction electrode part and the spraying agent side electrode part is applied to the spraying agent in the vicinity of the splitting separation part of the first thin film flow by the first deflecting spraying member and charged. The external electric field generated by applying a voltage between the second induction electrode part and the spraying agent side electrode part is applied to the spraying agent in the vicinity of the splitting separation part of the second thin film flow by the second deflecting spraying member to be charged. May be.

(93) to (100) In the above aspect (91), the same configuration as the above aspects (24) to (31) may be adopted. However, the fire extinguishing agent and the extinguishing agent side electrode part in the fire disaster prevention device B are read as the spraying agent and the spraying agent side electrode part.

According to the above aspects (1) to (22) and (51) to (72) according to the present invention, the extinguishing agent ejected from the nozzles of the charging spray head is spread in an arbitrary predetermined direction by the deflector serving as the deflecting spray member. Forming a thin film flow, placing an induction electrode near the splitting separation part where the thin film flow is converted into a particle group flow, and applying an external electric field to charge the head Electrostatic spraying can be performed.

In addition, by setting the deflection shape of the deflecting spray member that deflects the fire extinguishing agent sprayed from the nozzle into a thin film flow in any given direction, it is possible to easily achieve wide-angle electrification spraying compared to the conventional case, coupled with an increase in the amount of water spray. Sufficient flight distance can be obtained, and a high extinguishing and extinguishing effect using Coulomb force can be obtained by spraying a charge extinguishing agent over a wide range.

Further, according to the above aspects (23) to (50) and (73) to (100) according to the present invention, the deflector in which the extinguishing agent ejected from the nozzle of the charge spraying head is coaxially arranged in two stages to be a deflection spraying member. By forming a thin film flow that spreads in an arbitrary predetermined direction by each, and arranging an induction electrode in the vicinity of the splitting separation portion where each thin film flow is converted into a particle group flow, applying an external electric field and charging the double cone A particle swath that is shaped like a double cone can be dispersed, and a large amount of charge can be dispersed over a wide area.

It is explanatory drawing which showed embodiment of the fire disaster prevention equipment by this invention. It is explanatory drawing which took out and showed the protection area A of FIG. 1 is a longitudinal sectional view showing an embodiment of a charging spray head according to the present invention. It is the top view which looked at the electrification spreading head of Drawing 2 from the lower side (floor side) in the ceiling installation state. It is the graph which showed the relationship between the spraying quantity by this embodiment, and a specific charge with contrast with the conventional head. It is a time chart which showed the applied voltage supplied to the electrification distribution head of this embodiment. It is the longitudinal cross-sectional view which showed other embodiment of the electrification spreading head by this invention. It is explanatory drawing which looked at the electrification dispersion | distribution head of FIG. 7 from the lower side in a ceiling installation state. It is the side view which looked at a part of conventional charge distribution head. It is the graph which showed the relationship between the spraying quantity by the conventional charging spraying head, and a specific charge.

FIG. 1 is an explanatory view showing an embodiment of a fire disaster prevention device (fire disaster prevention equipment) according to the present invention. In FIG. 1, the charging spraying heads 10 according to the present embodiment are installed on the ceiling side of the protection areas A and B such as a computer room in the building. Fire extinguishing agent is sprayed on the area.

A pipe 16 is connected via a manual valve (gate valve) 13 from a pump unit 12 installed to a water source 14 that functions as a fire extinguishing agent storage / supply facility (sprayant storage / supply facility). Via the pressure valve 30 and the automatic opening / closing valve 32, it is connected to the charging spray head 10 installed in each of the protection areas A and B. The water source 14 stores water, seawater, or other water-based fire extinguishing agents.

In each of the protection areas A and B, a dedicated fire detector 18 serving as an input signal source for controlling the extinguishing agent spraying from the charging spraying head 10 is installed. Further, an interlocking control relay device 20 is provided for each of the protection areas A and B, and a dedicated fire detector 18 is connected to the signal line. The interlock control relay device 20 is further connected with a manual operation box 22 for performing spray control from the charge spray head 10 by manual operation.

The interlock control relay device 20 is connected to the signal lines from the dedicated fire detector 18 and the manual operation box 22 in this way, and controls the application of a charging voltage (charging driving voltage) to the charging spraying head 10. And a signal line for controlling opening / closing of the automatic opening / closing valve 32 are drawn out.

Furthermore, a fire detector 26 of an automatic fire alarm facility is installed in the protection area A, and is connected to a sensor line drawn from a receiver 28 of the automatic fire alarm facility. In addition, although the fire detector 26 of the automatic fire alarm facility is not provided in the protection area B, it is a matter of course that it may be provided as necessary.

On the other hand, the interlock control relay device 20 installed corresponding to the protection areas A and B is connected to the system monitoring control panel 24 by a signal line. A receiver 28 of an automatic fire alarm facility is also connected to the system monitoring control panel 24. Further, the system monitoring control panel 24 connects the pump unit 12 to the signal line to control the pump start / stop of the pump unit 12.

FIG. 2 is an explanatory diagram showing the protection area A in FIG. On the ceiling side of the protection area A, a charging spray head 10 is installed. The ceiling side pipe (falling pipe 34 in FIG. 3) to which the charging spraying head 10 is connected is connected to the pipe 16 from the pump unit 12 shown in FIG. 1 via the pressure regulating valve 30 and the automatic opening / closing valve 32. Yes.

In addition, a voltage application unit 15 is installed on the upper part of the charging / spreading head 10. As will be clarified in the following description, a fire extinguishing that applies a predetermined voltage to the charging / spreading head 10 and ejects it from the charging / spreading head 10. The agent is charged so that it can be sprayed. A dedicated fire detector 18 is installed on the ceiling side of the protection area A, and a fire detector 26 of an automatic fire alarm facility is also connected. The voltage application unit 15 may be provided integrally with the charging / spreading head 10.

FIG. 3 shows an embodiment of the charging and spreading head 10 shown in FIGS. 1 and 2, and shows a longitudinal section thereof. FIG. 4 is an explanatory view of the charging / spreading head 10 as viewed from the lower side (floor side) in a ceiling installation state.

In FIG. 3 and FIG. 4, the charging and spreading head 10 has

metal bodies

36, 38 divided into upper and lower parts connected by bolts 37, and is attached to the tip of a falling pipe 34 connected to the pipe 16 from the pump unit 12. The body 36 is fixed by screwing. A cylindrical fire extinguishing agent side electrode portion 46 is incorporated in the internal flow path (supply flow path) of the

bodies

36 and 38. The extinguishing agent side electrode portion 46 is made of a conductive metal material, and further covered with an insulating material, and is electrically insulated from the

metal bodies

36 and 38.

As shown in FIG. 2, the extinguishing agent-side electrode portion 46 is connected to a ground cable 54 drawn from the voltage application portion 15 installed in the vicinity of the outside. The extinguishing agent side electrode portion 46 is grounded by the connection of the ground cable 54.

A nozzle portion 40 is formed at the tip of the internal flow path (supply flow path) of the body 38 disposed at the lower part. A deflector 42 that functions as a deflecting and spreading unit is disposed on the ejection side of the nozzle unit 40. The deflector 42 is provided at the tip of a rod 45 that extends from a deflector support 44 that is assembled and fixed via an insulating spacer 43 following the extinguishing agent side electrode 46 in the body 38, and is located in front of the nozzle 40 (downward in the figure). ).

In the present embodiment, the deflector 42 is a conical plate body having a predetermined apex angle θ, deflects the fire extinguishing agent from the nozzle portion 40 along the conical surface, converts it into a thin film flow 56 and radiates it. . The thin film flow 56 formed by the deflector 42 is radiated as a particle group flow 58 by splitting and separating the thin film flow 56 from the vicinity of the splitting separation portion P, and is sprayed as a spray pattern 60 schematically illustrated.

A cylindrical frame 50 opened at the bottom is assembled and fixed to the body 38 with bolts 37. The opening end of the frame 50 is positioned below the splitting separation part P, that is, on the scattering space side, and an annular induction electrode part 48 is disposed on the inner peripheral surface near the splitting separation part P. .

The induction electrode portion 48 is formed of a conductive member and is covered with an insulating material, and is electrically insulated from the metal frame 50 and the fire extinguisher sprayed.

The voltage application cable 52 drawn from the voltage application unit 15 shown in FIG. 2 is connected to the induction electrode unit 48 arranged on the lower inner peripheral side of the frame 50.

In FIG. 3, the induction electrode portion 48 is disposed, for example, in a region that is 10 mm or less upstream of the splitting portion P of the

thin film flow

56, 30 mm or less downstream, and 20 mm or less from the surface of the thin film flow 56. Yes.

Here, as the extinguishing agent side electrode portion 46 and the induction electrode portion 48 used in the charging and spreading head 10 of the present embodiment, in addition to conductive metal, conductive resin, fiber bundle, rubber, etc. It may also be a composite that combines these.

When spraying the fire extinguishing agent from the charging spraying head 10, the voltage application unit 15 shown in FIG. 2 is operated by the control signal from the interlock control relay device 20 shown in FIG. 1, and the fire extinguishing agent side electrode unit 46 is connected to the reference potential. On the (earth) side, a DC (steady) applied voltage of about several KV to several tens of KV, for example, an applied voltage that is AC or pulsed is applied to the induction electrode portion 48. According to the inventor's experiment, the applied voltage is preferably in a range not exceeding 20 KV, but is not limited thereto.

In this way, when a voltage of, for example, several KV is applied between the extinguishing agent side electrode portion 46 and the induction electrode portion 48, an external electric field is generated by this voltage application, and the fire extinguishing fired from the nozzle portion 40 due to this action. The agent becomes a thin film flow 56 along the conical surface of the deflector 42, and the injected particles are charged and charged through an injection process in which the thin film flow 56 starts to split and separate from the vicinity of the splitting separation portion P and is converted into the particle group flow 58. It is possible to spray the spray particles to the target area of the external protection area.

When the fire extinguisher sprayed from the nozzle portion 40 is deflected by the deflector 42, a part of the fire extinguisher may come into contact with the induction electrode portion 48 due to peeling or scattering, but the induction electrode portion 48 is covered with an insulating material. Therefore, the fire extinguisher can be charged without contact with the fire extinguisher and without causing a problem of short circuit or charge neutralization.

FIG. 5 schematically shows an example in which the relationship between the spray amount and the specific charge in a certain condition is compared between the charge spray head 10 according to the present embodiment provided with the deflector 42 and the conventional charge spray head without the deflector 42. It is the shown graph.

In FIG. 5, the characteristic B is a characteristic of a conventional charging / spreading head, and is a case where a predetermined charging voltage is constantly applied. The specific charge indicating the charge amount greatly decreases with the increase in the spray amount per unit time. On the other hand, in the charge spray head 10 of the present embodiment, the spray amount as shown in the characteristic A, for example. The decrease in specific charge is small with respect to the increase in. In the example of FIG. 5, the specific charge (point “a” of characteristic A) of the nozzle of the present embodiment at a spray rate of 7 [liter / min] is the specific charge of the conventional nozzle at a spray rate of 1.5 [liter / min]. The level corresponds to the point B of the characteristic B).

As described above, according to the charge spraying head 10 of the present embodiment, the problem that the charge amount per unit water amount greatly decreases as the spraying amount increases in the conventional charge spraying head is solved, and charging is performed with high efficiency. Therefore, a large charge amount can be dispersed while the charge distribution head has a large amount of distribution.

Further, since the fire extinguisher sprayed from the nozzle unit 40 by the deflector 42 is converted into the particle group flow 58 through the thin film flow 56 and sprayed, the conventional charge spraying head can be obtained by appropriately setting the apex angle θ of the deflector 42. Compared to, wide-angle charge spraying can be easily realized, and the amount of water spray can be increased while suppressing charging loss, so a sufficient flight distance is obtained, and a wide range of charged fire extinguishing agents is sprayed to obtain a high fire-fighting and smoke-extinguishing effect. be able to.

Next, the monitoring operation in the embodiment of FIG. 1 will be described. Assuming that a fire F occurs in the protection area A, for example, the dedicated fire detector 18 detects a fire and sends a fire detection signal to the system monitoring control panel 24 via the interlock control relay device 20.

When the system monitoring control panel 24 receives the fire detection signal from the dedicated fire detector 18 installed in the protection area A, the pump unit 12 is activated, the fire-extinguishing water is pumped up from the water source 14 and pressurized by the pump unit 12, and piping 16 is supplied.

At the same time, the system monitoring control panel 24 outputs a start signal for the charging and spreading head 10 to the interlock control relay device 20 provided corresponding to the protection area A. In response to this activation signal, the interlock control relay device 20 opens the automatic opening / closing valve 32, whereby the water-based fire extinguisher having a constant pressure regulated by the pressure regulating valve 30 is charged via the opened automatic opening / closing valve 32. It is supplied to the spraying head 10 and is sprayed as spray particles (group) from the charging spraying head 10 to the protection area A as shown in FIG.

At this time, the interlock control relay device 20 sends an activation signal to the voltage application unit 15 provided in the charge distribution head 10 shown in FIG. For example, a DC, AC or pulsed applied voltage of several KV is supplied.

For this reason, in the electrification spraying head 10 shown in FIGS. 3 and 4, the thin film flow 56 deflected by the deflector 42 by jetting a water-based fire extinguisher pressurized from the nozzle portion 40 is converted into a particle group flow 58. Then, for example, a voltage of several KV is applied in a predetermined pattern to the reference potential (earth) of the extinguishing agent side electrode portion 46 on the annular induction electrode portion 48 side provided inside the frame 50, and this voltage The external electric field generated by the application can be charged and dispersed by applying it to the extinguishing agent in the vicinity of the splitting separation part P.

As shown in FIG. 2, since the extinguishing agent particles injected from the electrification spraying head 10 toward the protective area A where the fire F is generated are charged, the efficiency of the combustion source of the fire F is increased by the Coulomb force due to the charging. It adheres well. In addition, the combustion agent adheres to all surfaces due to the wraparound effect, and the wetting effect on the combustion agent is greatly increased compared to the case where uncharged water particles are sprayed as in the prior art, and high fire extinguishing ability is exhibited.

Moreover, since a fire extinguishing agent adheres and falls in the same manner for smoke (fire smoke) generated by combustion, a high smoke extinguishing effect can be obtained. In other words, the smoke extinguishing effect in the present embodiment is such that the smoke extinguishing effect by spraying the non-charged extinguishing agent particles as in the prior art is a trapping action by stochastic collision between the extinguishing agent particles and the smoke particles. In this embodiment, smoke particles in the charged state of opposite polarity are collected by the Coulomb force of the extinguishing agent particles that are sprayed and charged, thereby exhibiting a high smoke extinguishing effect including a smoke diffusion suppressing effect. Is done.

3 and 4, for example, when the extinguishing agent side electrode portion 46 is set to 0 volt and a positive voltage is applied to the induction electrode portion 48 in a DC or pulse manner. In other words, the sprayed water particles are charged only with a negative charge.

In this way, when fire extinguisher particles charged with the same polarity are sprayed only on a negative charge, repulsive force acts between the extinguisher particles charged in the space, which causes the fire extinguisher particles to collide and grow and fall. Since the probability decreases and the density of the extinguishing agent particles staying in the space increases, a high fire extinguishing capability is exhibited. That is, by extinguishing the extinguishing agent particles with the same polarity, they can be dispersed without lowering the convective particle density due to the repulsive force acting between the particles, and high fire extinguishing ability is exhibited.

The smoke eliminating effect in the present embodiment as described above is that the smoke eliminating effect by the dispersion of uncharged water particles as in the conventional case is a capturing action by the stochastic collision between the water particles and the smoke particles. In that case, smoke particles that are also in a charged state are collected by the Coulomb force of the water particles that are charged and dispersed, and thereby a significant smoke eliminating effect is exhibited.

In addition, the polarity of charging can be appropriately selected depending on the object to be sprayed. For example, when the polarity of the object to be sprayed is approximately positive, control is performed such that the extinguishing agent particles are charged to a negative polarity.

FIG. 6 is a time chart showing a voltage application pattern applied from the voltage application unit 15 to the charging / spreading head 10 according to the present embodiment, and voltage is applied as follows from each time t1.

FIG. 6A shows the case where a + V DC (steady) voltage is applied. In this case, negatively charged extinguishing agent particles are continuously dispersed.

FIG. 6B shows a case where a DC (steady) voltage of −V is applied. In this case, positively charged extinguishing agent particles are continuously dispersed.

FIG. 6C shows a case where an AC voltage of ± V is applied. In this case, the negatively charged extinguishing agent particles are dispersed in accordance with the change of the AC voltage during the positive half cycle, and the negative voltage is applied. In the half cycle period, the positively charged extinguishing agent particles are alternately sprayed according to the change of the AC voltage.

FIG. 6D shows a case where a pulsed voltage of + V is repeatedly applied at a predetermined interval. In this case, negatively charged extinguishing agent particles are intermittently scattered, and no voltage is applied. During the period, there will be a spray of uncharged extinguishing agent particles.

FIG. 6 (E) shows a case where a pulsed voltage of −V is repeatedly applied at a predetermined interval. In this case, positively charged extinguishing agent particles are intermittently dispersed and voltage is applied. During periods when there is no charge, there will be a spread of uncharged extinguishing agent particles.

FIG. 6 (F) shows a case where a pulsed voltage of ± V is repeatedly applied alternately at a predetermined interval. In this case, the negatively charged extinguishing agent particles and the positively charged extinguishing agent particles are intervals. During the period when the voltage is not applied, the non-charged extinguishing agent particles are dispersed. A pulse voltage of ± V may be alternately applied repeatedly without providing such an interval.

In the applied voltage patterns illustrated in FIGS. 6C to 6F, the application period and the inversion period can be appropriately determined, and a combination of a plurality of patterns shown in FIGS. 6A to 6F. And so on.

As the voltage application unit 15 that supplies the application voltage of each pattern illustrated in FIG. 6 to the charging / spreading head 10, a commercially available boosting unit with a control input can be used. Some commercially available boosting units output, for example, DC to 20 kilovolts when DC 0 to 20 volts is applied to the input, and such boosting units can be used.

FIG. 7 shows another embodiment of the charge distribution head according to the present invention, and shows a longitudinal section thereof. FIG. 8 is an explanatory view of the charging / spreading head of FIG. 7 as viewed from the lower side (floor side) in the ceiling installation state. The charge spraying head of this embodiment is characterized in that the fire extinguisher particle group stream is charged and sprayed in a double cone shape (double cone shape) in order to spray over a wide range.

7 and 8, the charging and spreading head 10 has

metal bodies

36 and 38 divided into upper and lower parts connected by bolts 37, and is attached to the tip of a falling pipe 34 connected to the pipe 16 from the pump unit 12. The body 36 is fixed by screwing. A cylindrical fire extinguishing agent side electrode portion 46 is incorporated in the internal flow path (supply flow path) of the

bodies

metal bodies

36 and 38. An insulating spacer 43 is disposed below the extinguishing agent side electrode portion 46.

A nozzle portion 70 is formed at the tip of the internal flow path (supply flow path) of the body 38 disposed in the lower part. As shown in FIG. 7, the nozzle unit 70 of the present embodiment includes a first deflector 42-1 serving as a first deflecting and spreading member in a space on the tip side of the rod 45 extending from the deflector support 44-1 disposed at the center position. The cylindrical base portion is screwed and supported on the deflector support portion 44-2 arranged coaxially, and the second deflector 42- is used as a second spraying deflecting member in the space on the front end side behind the first deflector 42-1. 2 is arranged.

The second deflector 42-2 has a shape in which a nozzle hole is formed in the center and the tip outer peripheral side is expanded in a conical shape, and the rod 42-1 is inserted into the center nozzle hole. However, a first nozzle portion 40-1 that discharges a fire extinguishing agent toward the first deflector 42-1 is formed by the gap between the nozzle hole and the rod 42-1 in the insertion portion.

A ring-shaped gap (ring-shaped nozzle hole) is formed between the nozzle opening of the nozzle portion 70 and the cylindrical base portion that is inserted through the nozzle opening and supports the second deflector 40-2. The gap in the shape of the second nozzle part 40-2 that discharges the fire extinguishing agent toward the second deflector 42-2.

In the present embodiment, the first deflector 42-1 is a conical body having a predetermined apex angle θ1, and deflects the fire extinguisher ejected from the first nozzle part 40-1 along the conical surface to form a thin film Converts to stream 56-1 and emits. The thin film flow 56-1 formed by the first deflector 42-1 is split and separated from the vicinity of the splitting separation portion P1, and is radiated as the first particle group flow 58-1, and the dispersion pattern 60- shown schematically. 1 is sprayed.

Further, the second deflector 42-2 is formed with a conical body having a predetermined apex angle θ2 larger than the apex angle θ1 of the first deflector 40-1 at the tip of the cylindrical base as shown in the figure. The fire extinguishing agent ejected from the second nozzle section 40-2 having the above is deflected at a wide angle along the conical surface, converted into a thin film flow 56-2 and emitted. The thin film flow 56-2 formed by the second deflector 42-2 is split and separated from the vicinity of the splitting separation portion P2, and is radiated as the second particle group flow 58-2. As shown in Fig. 2, the first deflector 40-1 is spread over a wide angle so as to cover the outer side of the spreading pattern 60-2, and thereby a spreading pattern that uniformly covers a wide area of a double cone shape (double cone shape). Form.

A cylindrical frame 50 opened on the lower side is assembled and fixed to the body 38 with bolts 37. The open end of the frame 50 is positioned below the splitting separation part P2 of the thin film flow 56-2 formed by deflection by the second deflector 42-2, that is, on the scattering space side, and further in the vicinity of the splitting separation part P2. An annular second induction electrode portion 48-2 is arranged on the inner peripheral surface.

Further, a ring-shaped frame 74 is supported by the holder arm 72 below the frame 50. The lower end of the frame 74 is positioned below the splitting separation part P1 of the thin film flow 56-1 deflected by the first deflector 40-1, that is, on the scattering space side. An annular first induction electrode portion 48-1 is disposed on the inner peripheral surface in the vicinity.

The first induction electrode portion 48-1 and the second induction electrode portion 48-2 are formed of a conductive member and are covered with an insulating material, so that the metal frames 50 and 74 and the fire extinguishing agent to be sprayed are protected. It is electrically insulated.

A voltage application cable 52 drawn from the voltage application unit 15 shown in FIG. 2 is connected to the first induction electrode unit 48-1 and the second induction electrode unit 48-2 arranged in the

frames

50 and 74. Yes.

The first induction electrode part 48-1 and the second induction electrode part 48-2 are, for example, 10 mm or less upstream of the splitting separation parts P1 and P2 of the thin film flows 56-1 and 56-2, and 30 mm or less downstream. Further, they are arranged in a region that is 20 mm or less from the surface of the thin film flows 56-1 and 56-2.

Here, the extinguishing agent side electrode unit 46, the first induction electrode unit 48-1, and the second induction electrode unit 48-2 used in the charging and spreading head 10 of the present embodiment are not limited to conductive metals. Further, it may be a resin having conductivity, a fiber bundle, rubber, or the like, or may be a composite that combines these.

When spraying the fire extinguishing agent from the charging spraying head 10 of FIGS. 7 and 8, the voltage application unit 15 shown in FIG. 2 is operated by the control signal from the interlock control relay device 20 shown in FIG. The electrode portion 46 is set to the ground side, and an applied voltage of DC, AC, or pulse shape of, for example, about several KV to several tens of KV is applied to the first induction electrode portion 48-1 and the second induction electrode portion 48-2. According to the inventor's experiment, the applied voltage is preferably in a range not exceeding 20 KV, but is not limited thereto.

Thus, for example, a voltage of several KV with respect to the reference potential (ground) of the extinguishing agent side electrode unit 46 between the extinguishing agent side electrode unit 46 and the first induction electrode unit 48-1 and the second induction electrode unit 48-2. Is applied in a predetermined pattern, an external electric field is generated by applying this voltage, and the fire extinguishing agent sprayed from the first nozzle part 40-1 and the second nozzle part 40-2 is applied to the first deflector 42-1 and the second deflector 42-2. Thin film flows 56-1 and 56-2 along the conical surfaces of the first and second particle streams 58-1 and 56-2. The fire-extinguishing agent spray particles are charged through the process of being converted into a two-particle group flow 58-2, and the charged spray particles are charged as a double cone-shaped pattern that uniformly covers a wide area outside. Can be sprayed.

In addition, as the electrification spraying head 10 used in the present embodiment, it is possible to secure a spraying pattern suitable for the size of the protective section by appropriately adjusting the apex angles of the deflectors 42, 42-1 and 42-2. it can.

In the above embodiment, the annular electrodes are used as the induction electrode portions 48, 48-1, and 48-2. However, the shape of each is arbitrary, for example, the deflectors 42, 42-1, and 42- An annular electrode having an electrode surface substantially parallel to the flow direction of the thin film flows 56, 56-1, and 56-2 generated in Step 2 may be used. As described above, when the annular electrodes that are substantially parallel to the flow direction of the thin film flow are used as the induction electrode portions 48, 48-1, and 48-2, the distances between the respective portions in the electrode surface and the thin film flow surface become uniform. It is possible to increase the efficiency and obtain a stable charge.

In addition, the applied voltage pattern to the charging and spreading head is set such that the induction electrode side is alternately plus / minus applied voltage with respect to the extinguishing agent side electrode part, only the plus voltage is applied, or only the minus voltage is applied. Whether to apply a direct current or a pulse, or to apply an alternating current that changes sinusoidally, for example, whether it is a scatter object, a scatter object area, various other conditions, situations, It can be determined as appropriate according to changes and the like. Of course, the period of application and inversion can be properly determined.

Also, the number of induction electrode portions and deflectors is arbitrary, and for example, a triple cone type in which three of them are combined may be used. Of course, the number of nozzle portions is arbitrary.

Further, the combination of the number of induction electrode portions and the number of deflectors is also arbitrary. For example, even if a plurality of deflectors are provided for one induction electrode portion, one deflector is provided for a plurality of induction electrode portions. It may be a thing. In addition, a plurality of nozzle portions each composed of a combination of different numbers of induction electrode portions and deflectors may be provided.

In addition, the charging spray head and the fire extinguishing agent spraying method of the present invention can be used in various ways for the purpose of extinguishing fire, preventing the spread of fire, or smoke. Of course, it may be used for other purposes.

Further, the present invention is not limited to the above, and includes an electrostatic spraying device (equipment) for charging and spraying a water-based spraying agent to an appropriate spraying target section, a charging spraying head, and a charging method for the charging spraying device. In this case, the extinguishing agent and the extinguishing agent side electrode part in the above embodiment may be read as the spraying agent and the spraying agent side electrode part.

Further, the induction electrode portion and the deflector do not necessarily have a conical shape, and may be, for example, a pyramid shape.

Further, as the fire extinguishing agent charged and sprayed by the charging spray head of the present invention, spraying agents such as water or various water-based fire extinguishing agents can be applied.

Further, in the charging / spreading head 10 of the present embodiment, the induction electrode portion 48 is formed by insulating coating with an insulating material, so that water contacts the induction electrode portion 48 and short circuit or charge neutralization occurs. Therefore, safety can be ensured and the particle swarm 58 (charged spray water) can be suitably generated.

Further, Table 1 shows a case where the ejection flow rate (spray water amount) is 1 L / min, the applied voltage applied by the induction electrode unit 48 is +5 kV, the induction electrode unit 48 is formed without providing an insulating coating, and various insulating materials. The result of measuring the specific charge of the particle group flow 58 in the case where the induction electrode portion 48 is formed by insulating coating in FIG. From this result, it was confirmed that when a polyamide synthetic resin (nylon: registered trademark) or a polyethylene resin is used as an insulating material, the specific charge is significantly reduced as compared with a case formed without providing an insulating coating.

On the other hand, when polyvinyl chloride resin, polyphenylene sulfide resin (PPS), urethane resin, polytetrafluoroethylene resin, polychlorotrifluoroethylene resin, alumina ceramics, and glass bottles are used as insulating materials, an insulating coating is not provided. It was confirmed that the particle swarm 58 is generated with a specific charge equal to or higher than that of the formed case. Therefore, in the charging and spreading head 10 of the present embodiment, such polyvinyl chloride resin, polyphenylene sulfide resin (PPS), urethane resin, polytetrafluoroethylene resin, polychlorotrifluoroethylene resin, alumina ceramics, glass By forming the induction electrode portion 48 using at least one kind of soot as an insulating material, it is possible to suitably generate the particle group flow 58 while preventing short circuit and charge neutralization.

(Application to other uses)
The charged water particle spraying device of the present invention can also be applied as a fire extinguishing device. Also in this case, as described in, for example, Japanese Patent Application Laid-Open No. 2009-106405 and WO 2009/107421, good fire extinguishing can be achieved by efficiently wetting the combustion object to be dispersed by the action of charged water particles. In addition to obtaining the effect, it is also possible to suppress the generation of smoke due to combustion and capture the generated smoke to prevent diffusion. In addition, according to the charged water particle spraying device of the present invention, it is possible to extinguish a fire by accurately spraying charged water particles from a distance of the combustion material toward the combustion material, or to suppress expansion of combustion. it can. In this case, as the insulating coating material for the induction electrode portion, it is more preferable to use ceramics or cocoons having excellent heat resistance and fire resistance.

The present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited only by the numerical values shown in the above embodiments.

According to the present invention, a fire disaster prevention device, a charging spraying device (equipment), and a charging spraying (spraying) head that ensure a sufficient charge amount even when the spraying amount increases and exhibit a high fire extinguishing and smoke eliminating effect using Coulomb force. Further, a fire extinguishing agent spraying method and a charge spraying method can be provided.

Further, according to the present invention, a fire disaster prevention device (equipment), a charge spraying device, a charge spraying (spraying) head, a fire extinguishing agent spraying (spraying) method, and a charge spraying that uniformly spread a fire extinguisher having a large charge amount over a wide range Can provide a method.

10: Charge spraying head 12: Pump unit 13: Manual valve 14: Water source 15: Voltage application unit 16: Pipe 18: Dedicated fire detector 20: Interlocking control relay device 22: Manual operation box 24: System monitoring control panel 26: Fire Sensor 28: Receiver 30: Pressure regulating valve 32: Automatic on-off valve 34: Falling pipe 36, 38: Body 40, 70: Nozzle section 42: Deflector 42-1: First deflector 42-2: Second deflector 44, 44-1, 44-2: Deflector support part 45: Rod 46: Fire extinguisher side electrode part 48: Induction electrode part 48-1: First induction electrode part 48-2: Second induction electrode part 50, 74: Frame 52 : Voltage application cable 54: Earth cable 55: Cable holders 56, 56-1, 56-2: Thin film flow 58: Particle group flow 58-1: First particle group flow 58-2: Second particle group flow 60 Scatter patterns 60-1: first spraying pattern 60-2: second spray pattern P, P1, P2: division separation unit

Claims

A fire extinguisher supply facility for supplying a water-based fire extinguisher via a pipe;
A charged spraying head installed in a protective compartment and charged by spraying the spray particles of the fire extinguisher supplied by the fire extinguisher supply equipment;
A fire disaster prevention device comprising a voltage application unit that applies a charging voltage to the charging and spreading head,
The charging spray head is
A nozzle for injecting the fire extinguishing agent into an external space;
A fire extinguishing agent side electrode portion disposed inside the nozzle and in contact with the fire extinguishing agent;
A deflecting and dispersing member that divides and splits into a particle group flow after deflecting the extinguishing agent from the nozzle in an arbitrary direction to form a thin film flow; and
A fire disaster prevention device comprising: an induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow.
2. The fire according to claim 1, wherein the deflecting and spreading member is a deflector having a conical shape or a pyramid shape that deflects the extinguishing agent discharged from the nozzle into a conical or pyramidal thin film flow. Disaster prevention equipment.
2. The fire disaster prevention device according to claim 1, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
The fire disaster prevention device according to claim 1, wherein a part or all of the induction electrode portion is covered with an insulating material.
The fire extinguishing apparatus according to claim 1, wherein the extinguishing agent side electrode portion is at least a part of a supply flow path of the extinguishing agent in the electrification spraying head or the nozzle.
The voltage of the extinguishing agent side electrode part is a predetermined reference value,
In contrast, the fire prevention device according to claim 1, wherein a predetermined charging voltage is applied to the induction electrode portion.
The fire disaster prevention device according to claim 6, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the induction electrode section.
A charge spraying head that is installed in a protective section and sprays the sprayed particles of the fire extinguisher supplied by the fire extinguisher supply equipment by charging by applying a charging voltage from a voltage application unit,
A nozzle for injecting the fire extinguishing agent into an external space;
A fire extinguishing agent side electrode portion disposed inside the nozzle and in contact with the fire extinguishing agent;
A deflecting and dispersing member that divides and splits into a particle group flow after deflecting the extinguishing agent from the nozzle in an arbitrary direction to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
A charge spraying head characterized by comprising:
9. The electrification according to claim 8, wherein the deflecting and spreading member is a deflector having a cone shape or a pyramid shape for deflecting the extinguishing agent discharged from the nozzle into a conical or pyramidal thin film flow. Spraying head.
9. The charging / spreading head according to claim 8, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
The charging / spreading head according to claim 8, wherein a part or all of the induction electrode portion is covered with an insulating material.
The charge-spreading head according to claim 8, wherein the extinguishing agent-side electrode portion is at least a part of a supply flow path of the fire-extinguishing agent in the charge-spreading head or the nozzle.
The charging spray head according to claim 8, wherein a voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion.
14. The charging / spreading head according to claim 13, wherein a predetermined charging voltage having a direct current, an alternating current, or a pulse shape is applied to the induction electrode portion.
In the event of a fire, supply a water-based fire extinguisher to the electrostatic spraying head installed in the protection zone via a pipe,
The fire extinguisher sprayed from the charging spray head is deflected in an arbitrary direction to form a thin film flow, and then split and dispersed into a particle group flow, and an external electric field is applied in the vicinity of the splitting portion of the thin film flow. Electrify,
A fire extinguishing agent spraying method for a fire disaster prevention device.
The charging spray head is
A nozzle for injecting the fire extinguishing agent into an external space;
A fire extinguishing agent side electrode portion disposed inside the nozzle and in contact with the fire extinguishing agent;
A deflecting and dispersing member that divides and splits into a particle group flow after deflecting the extinguishing agent from the nozzle in an arbitrary direction to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
With
An external electric field generated by applying a voltage between the induction electrode part and the extinguishing agent side electrode part,
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 15, wherein the fire extinguishing agent is charged by being applied to the extinguishing agent in the vicinity of the splitting and separating portion of the thin film flow by the deflecting spraying member.
The fire according to claim 15, wherein the deflecting and spreading member is a deflector having a cone shape or a pyramid shape for deflecting the extinguishing agent discharged from the nozzle into a conical or pyramidal thin film flow. Fire extinguishing agent spraying method for disaster prevention equipment.
The fire extinguishing agent spraying method for a fire disaster prevention apparatus according to claim 15, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 15, wherein a part or all of the induction electrode portion is covered with an insulating material.
The fire extinguishing agent spraying method of a fire disaster prevention device according to claim 15, wherein the extinguishing agent side electrode portion is at least a part of the supply path of the extinguishing agent in the charging spraying head or the nozzle.
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 15, wherein the voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion. .
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 21, wherein a predetermined charging voltage that is a direct current, an alternating current, or a pulse shape is applied to the induction electrode portion.
A fire extinguisher supply facility for supplying a water-based fire extinguisher via a pipe;
A charging spray head that is installed in a protective compartment and charges and sprays the spray particles of the fire extinguishing agent pressurized and supplied by the fire extinguishing agent supply facility;
A voltage applying unit for applying a charging voltage to the charging and spreading head;
A fire disaster prevention device comprising:
The charging spray head is
A nozzle for injecting the fire extinguishing agent into an external space;
A fire extinguishing agent side electrode portion disposed inside the nozzle and in contact with the fire extinguishing agent;
A first deflecting spraying member that splits a part of the fire extinguisher exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and splits into a particle group flow;
A first induction electrode portion disposed in the vicinity of a splitting separation portion of the first thin film flow;
A second deflected spray for spraying the remainder of the fire extinguishing agent exiting from the nozzle to form a second thin film flow that is positioned outside the first thin film flow and deflects in the same direction, and then splits and separates into a particle group flow A member,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
A fire disaster prevention device characterized in that the particle swarm is dispersed in a double cone shape.
The nozzle is formed with a central nozzle hole and a ring-shaped nozzle hole coaxially around the rear thereof,
The first deflection spray member is a first deflector having a cone shape or a pyramid shape for deflecting the extinguishing agent discharged from a central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
24. The second deflecting and spreading member is a second deflector having a conical shape for deflecting the extinguishing agent discharged from a ring-shaped nozzle hole of the nozzle into a conical surface thin film flow. The fire prevention device described.
24. The fire disaster prevention device according to claim 23, wherein the first induction electrode portion and the second induction electrode portion are made of metal, resin, fiber bundle, rubber, or a composite having conductivity.
The fire disaster prevention device according to claim 23, wherein a part or all of the first induction electrode portion and the second induction electrode portion are covered with an insulating material.
The fire extinguishing apparatus according to claim 23, wherein the extinguishing agent side electrode portion is at least a part of the supply path of the extinguishing agent in the electrification spraying head or the nozzle.
24. The fire according to claim 23, wherein a voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion. Disaster prevention equipment.
29. The fire disaster prevention device according to claim 28, wherein a predetermined charging voltage having a direct current, an alternating current or a pulse shape is applied to the first induction electrode portion and the second induction electrode portion.
24. The fire prevention device according to claim 23, wherein the deflecting / dispersing member having a different number is provided for one or a plurality of the induction electrode portions.
The fire disaster prevention device according to claim 30, wherein a plurality of sets of the deflecting and scattering members having different numbers are provided as one set for one or a plurality of the induction electrode portions.
A charge spraying head that is installed in a protective section and sprays the sprayed particles of the fire extinguisher supplied by the fire extinguisher supply equipment by charging by applying a charging voltage from a voltage application unit,
A nozzle for injecting the fire extinguishing agent into an external space;
A fire extinguishing agent side electrode portion disposed inside the nozzle and in contact with the fire extinguishing agent;
A first deflecting spraying member that splits a part of the fire extinguisher exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and splits into a particle group flow;
A first induction electrode portion disposed in the vicinity of a splitting separation portion of the first thin film flow;
A second deflected spray for spraying the remainder of the fire extinguishing agent exiting from the nozzle to form a second thin film flow that is positioned outside the first thin film flow and deflects in the same direction, and then splits and separates into a particle group flow A member,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
A charge spraying head characterized by spraying a particle group flow in a double cone shape.
The nozzle is formed with a central nozzle hole and a ring-shaped nozzle hole coaxially around the rear thereof,
The first deflection spray member is a first deflector having a cone shape or a pyramid shape for deflecting the extinguishing agent discharged from a central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
The second deflecting and spreading member is a second deflector having a cone shape or a pyramid shape for deflecting the fire extinguishing agent discharged from the ring-shaped nozzle hole of the nozzle into a conical or pyramidal thin film flow.
33. The charging / spreading head according to claim 32.
33. The charging / spreading head according to claim 32, wherein the first induction electrode portion and the second induction electrode portion are made of metal, resin, fiber bundle, rubber, or a composite having conductivity.
33. The electrification spray head according to claim 32, wherein a part or all of the first induction electrode portion and the second induction electrode portion are covered with an insulating material.
33. The electrostatic spraying head according to claim 32, wherein the extinguishing agent side electrode portion is at least a part of the supply flow path of the extinguishing agent in the electrostatic spraying head or the nozzle.
The charging according to claim 32, wherein a voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion. Spraying head.
38. A charging and spreading head according to claim 37, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the first induction electrode portion and the second induction electrode portion.
33. The charging / spreading head according to claim 32, wherein the deflecting / spreading member having a different number is provided for one or a plurality of the induction electrode portions.
40. The electrification spraying head according to claim 39, wherein a plurality of sets of the deflection spraying members having different numbers are provided as one set for one or a plurality of the induction electrode portions.
In the event of a fire, supply a water-based fire extinguisher to the electrostatic spraying head installed in the protection zone via a pipe,
A part of the fire extinguisher sprayed from the charging spraying head is deflected in an arbitrary direction to form a first thin film flow, and then divided and dispersed into a particle group flow, and the first thin film flow splitting and separating unit Apply an external electric field in the vicinity to charge it,
The remainder of the fire extinguisher sprayed from the charging spray head is divided and dispersed into a particle group flow after forming a second thin film flow that is located outside the first thin film flow and deflects in the same direction, Applying an external electric field near the splitting separation part of the second thin film flow to charge it,
A fire extinguishing agent spraying method for a fire disaster prevention device, characterized by spraying a particle stream in a double cone shape.
The charging spray head is
A nozzle for injecting the fire extinguishing agent into an external space;
A fire extinguishing agent side electrode portion disposed inside the nozzle and in contact with the fire extinguishing agent;
A first deflecting spraying member that splits a part of the fire extinguisher exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and splits into a particle group flow;
A first induction electrode portion disposed in the vicinity of a splitting separation portion of the first thin film flow;
A second deflected spray for spraying the remainder of the fire extinguishing agent exiting from the nozzle to form a second thin film flow that is positioned outside the first thin film flow and deflects in the same direction, and then splits and separates into a particle group flow A member,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow,
An external electric field generated by applying a voltage between the first induction electrode part and the extinguishing agent side electrode part is applied to the extinguishing agent in the vicinity of the splitting part of the first thin film flow by the first deflecting and spreading member. An external electric field generated by applying a voltage between the second induction electrode part and the extinguishing agent side electrode part, and in the vicinity of the splitting part of the second thin film flow by the second deflection scattering member 42. The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 41, wherein the fire extinguishing agent is applied and charged.
The nozzle is formed with a central nozzle hole and a ring-shaped nozzle hole coaxially around the rear thereof,
The first deflection spray member is a first deflector having a cone shape or a pyramid shape for deflecting the extinguishing agent discharged from a central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
42. The second deflecting and spreading member is a second deflector having a conical shape for deflecting the extinguishing agent discharged from the ring-shaped nozzle hole of the nozzle into a conical surface thin film flow. The fire extinguishing agent spraying method of the described fire disaster prevention device.
The fire extinguishing apparatus according to claim 41, wherein the first induction electrode section and the second induction electrode section are made of metal, resin, fiber bundle, rubber, or a composite having conductivity. Agent spraying method.
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 41, wherein a part or all of the first induction electrode part and the second induction electrode part are covered with an insulating material.
42. The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 41, wherein the extinguishing agent side electrode portion is at least a part of the supply channel of the extinguishing agent in the charging spraying head or the nozzle.
42. The fire according to claim 41, wherein a voltage of the extinguishing agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion. Fire extinguishing agent spraying method for disaster prevention equipment.
48. The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 47, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the first induction electrode portion and the second induction electrode portion.
48. The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 47, wherein the deflection spraying member having a different number is provided for one or a plurality of the induction electrode portions.
The fire extinguishing agent spraying method for a fire disaster prevention device according to claim 49, wherein a plurality of the deflecting spraying members having different numbers are provided as one set for one or a plurality of the induction electrode portions.
A spray agent supply facility for supplying a water-based spray agent via a pipe;
A charged spraying head installed in a spraying section and charged by spraying spray particles of the spraying agent supplied by the spraying agent supply facility;
A voltage applying unit for applying a charging voltage to the charging and spreading head;
An electrostatic spraying device comprising:
The charging spray head is
A nozzle for injecting the spray agent into an external space;
A spraying agent side electrode portion disposed inside the nozzle and in contact with the spraying agent;
A deflecting and dispersing member that divides and disperses into a particle group flow after deflecting the spraying agent exiting the nozzle in an arbitrary direction to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow;
A charging and spraying device comprising:
52. The electrification according to claim 51, wherein the deflecting and dispersing member is a deflector having a conical shape or a pyramid shape that deflects the spraying agent discharged from the nozzle into a conical or pyramidal thin film flow. Spraying equipment.
The induction electrode part is a conductive metal,
52. The charging / spreading apparatus according to claim 51, wherein the charging / spreading apparatus is any one of a resin, a fiber bundle, rubber, or a composite.
52. The electrostatic spraying device according to claim 51, wherein a part or all of the induction electrode portion is covered with an insulating material.
52. The electrostatic spraying device according to claim 51, wherein the spraying agent side electrode section is at least a part of the spraying agent supply flow path in the electrostatic spraying head or the nozzle.
52. The charge spraying device according to claim 51, wherein a voltage of the spray agent side electrode part is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode part.
The charging device according to claim 56, wherein a predetermined charging voltage having a direct current, an alternating current, or a pulse shape is applied to the induction electrode portion.
A charging spraying head that is installed in the spraying section and is charged and sprayed on the spray particles of the spraying agent supplied by the spraying agent supply facility by applying a charging voltage from a voltage application unit,
A nozzle for injecting the spray agent into an external space;
A spraying agent side electrode portion disposed inside the nozzle and in contact with the spraying agent;
A deflecting and dispersing member that divides and disperses into a particle group flow after deflecting the spraying agent exiting the nozzle in an arbitrary direction to form a thin film flow; and
And an induction electrode portion disposed in the vicinity of the splitting and separating portion of the thin film flow.
59. The charging according to claim 58, wherein the deflecting and dispersing member is a deflector having a conical shape or a pyramid shape for deflecting the spraying agent discharged from the nozzle into a conical or pyramidal thin film flow. Spraying head.
59. The charging / spreading head according to claim 58, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
59. The charging / spreading head according to claim 58, wherein a part or all of the induction electrode portion is covered with an insulating material.
59. The charging spray head according to claim 58, wherein the spraying agent side electrode portion is at least a part of the spraying agent supply flow path in the charging spraying head or the nozzle.
The charging spray head according to claim 58, wherein a voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion.
64. A charging / spreading head according to claim 63, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the induction electrode section.
Supply the water-based spraying agent to the electrifying spraying head installed in the spraying section via the pipe,
The spraying agent sprayed from the charging spraying head is deflected in an arbitrary direction to form a thin film flow, and then divided and dispersed into a particle group flow, and an external electric field is applied in the vicinity of the splitting part of the thin film flow. Electrify,
A charge spraying method for a charge spraying device.
The charging spray head is
A nozzle for injecting the spray agent into an external space;
A spraying agent side electrode portion disposed inside the nozzle and in contact with the spraying agent;
A deflecting and dispersing member that divides and disperses into a particle group flow after deflecting the spraying agent exiting the nozzle in an arbitrary direction to form a thin film flow; and
An induction electrode portion disposed in the vicinity of the splitting separation portion of the thin film flow,
An external electric field generated by applying a voltage between the induction electrode unit and the spraying agent side electrode unit is applied to the spraying agent in the vicinity of the splitting part of the thin film flow by the deflecting spraying member to be charged. 66. A method of spraying charges on a charge spraying device according to claim 65.
66. The electrification according to claim 65, wherein the deflecting and dispersing member is a deflector having a conical shape or a pyramid shape for deflecting the spraying agent discharged from the nozzle into a conical or pyramidal thin film flow. Charging method of the spraying device.
66. A method for charging and dispersing a charging device according to claim 65, wherein the induction electrode portion is one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
66. A charging spray method for a charging spray device according to claim 65, wherein a part or all of the induction electrode portion is covered with an insulating material.
66. The charge spraying method of the charge spraying device according to claim 65, wherein the spraying agent side electrode portion is at least a part of the spraying agent supply flow path in the charge spraying head or the nozzle.
66. The charging spray method of the charging spray device according to claim 65, wherein a voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the induction electrode portion.
72. The method of charging dispersion of a charging distribution device according to claim 71, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the induction electrode portion.
A spray agent supply facility for supplying a water-based spray agent via a pipe;
A charged spraying head installed in a spraying section and charged by spraying spray particles of the spraying agent supplied under pressure by the spraying agent supply facility;
A charging application device including a voltage application unit that applies a charging voltage to the charging application head,
The charging spray head is
A nozzle for injecting the spray agent into an external space;
A spraying agent side electrode portion disposed inside the nozzle and in contact with the spraying agent;
A first deflecting spraying member that splits and sprays a part of the spraying agent exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates into a particle group flow;
A first induction electrode portion disposed in the vicinity of a splitting separation portion of the first thin film flow;
A second deflected spray is formed by forming a second thin film flow that is positioned outside the first thin film flow and deflects in the same direction after being split from the nozzle and splitting into a particle group flow. A member,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
And a spraying device for spraying a particle group flow in a double cone shape.
The nozzle is formed with a central nozzle hole and a ring-shaped nozzle hole coaxially around the rear thereof,
The first deflecting and spreading member is a first deflector having a cone shape or a pyramid shape for deflecting the spraying agent discharged from a central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
The second deflection spraying member is a second deflector having a conical shape for deflecting the spraying agent discharged from the ring-shaped nozzle hole of the nozzle into a conical surface thin film flow.
74. The charging and dispersing apparatus according to claim 73.
The first induction electrode part and the second induction electrode part are:
74. The charging / spreading apparatus according to claim 73, wherein the charging / spreading apparatus is one of a metal, a resin, a fiber bundle, rubber, or a composite having conductivity.
[Claim 78] The charging device according to claim 73, wherein a part or all of the first induction electrode portion and the second induction electrode portion are covered with an insulating material.
75. The electrostatic spraying device according to claim 73, wherein the spraying agent side electrode portion is at least a part of the spraying agent supply flow path in the charging spraying head or the nozzle.
The charging according to claim 73, wherein a voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion. Spraying equipment.
79. The charging and spraying device according to claim 78, wherein a predetermined charging voltage having a direct current, an alternating current, or a pulse shape is applied to the first induction electrode portion and the second induction electrode portion.
[Claim 74] The electrification spraying device according to claim 73, wherein the deflection spraying member having a different number is provided for one or a plurality of the induction electrode portions.
81. The charging / spreading apparatus according to claim 80, wherein a plurality of sets of the deflection spraying members having different numbers are provided as one set with respect to one or a plurality of the induction electrode portions.
A charging spraying head that is installed in the spraying section and is charged and sprayed on the spray particles of the spraying agent supplied by the spraying agent supply facility by applying a charging voltage from a voltage application unit,
A nozzle for injecting the spray agent into an external space;
A spraying agent side electrode portion disposed inside the nozzle and in contact with the spraying agent;
A first deflecting spraying member that splits and sprays a part of the spraying agent exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates into a particle group flow;
A first induction electrode portion disposed in the vicinity of a splitting separation portion of the first thin film flow;
A second deflected spray is formed by forming a second thin film flow that is positioned outside the first thin film flow and deflects in the same direction after being split from the nozzle and splitting into a particle group flow. A member,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
A charge spraying head characterized by spraying a particle group flow in a double cone shape.
The nozzle is formed with a central nozzle hole and a ring-shaped nozzle hole coaxially around the rear thereof,
The first deflecting and spreading member is a first deflector having a cone shape or a pyramid shape for deflecting the spraying agent discharged from a central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
The second deflecting spray member is a second deflector having a cone shape or a pyramid shape for deflecting the spraying agent discharged from the ring-shaped nozzle hole of the nozzle into a conical or pyramidal thin film flow.
83. A charging and spreading head according to claim 82.
83. The charging / spreading head according to claim 82, wherein the first induction electrode portion and the second induction electrode portion are made of metal, resin, fiber bundle, rubber, or a composite having conductivity.
83. The electrification spraying head according to claim 82, wherein a part or all of the first induction electrode portion and the second induction electrode portion are covered with an insulating material.
83. The charging spray head according to claim 82, wherein the spraying agent side electrode portion is at least a part of the spraying agent supply flow path in the charging spraying head or the nozzle.
83. Charging according to claim 82, wherein a voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion. Spraying head.
88. A charging and spreading head according to claim 87, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to said first induction electrode portion and second induction electrode portion.
83. The charging / spreading head according to claim 82, wherein the deflecting / spreading member having a different number is provided for one or a plurality of the induction electrode portions.
90. The electrification spraying head according to claim 89, wherein a plurality of sets of the deflection spraying members having different numbers are provided as one set for one or a plurality of the induction electrode portions.
Supply the water-based spraying agent to the electrifying spraying head installed in the spraying section via the pipe,
A part of the spraying agent sprayed from the charging spraying head is deflected in an arbitrary direction to form a first thin film flow, and then split and separated into a particle group flow, thereby splitting and separating the first thin film flow Apply an external electric field in the vicinity to charge it,
The remainder of the spraying agent sprayed from the charging spraying head is divided and dispersed into a particle group flow after forming a second thin film flow that is located outside the first thin film flow and deflects in the same direction, Applying an external electric field near the splitting separation part of the second thin film flow to charge it,
A charge spraying method for a charge spraying device, characterized by spraying a particle group flow in a double cone shape.
The charging spray head is
A nozzle for injecting the spray agent into an external space;
A spraying agent side electrode portion disposed inside the nozzle and in contact with the spraying agent;
A first deflecting spraying member that splits and sprays a part of the spraying agent exiting from the nozzle in an arbitrary direction to form a first thin film flow, and then splits and separates into a particle group flow;
A first induction electrode portion disposed in the vicinity of a splitting separation portion of the first thin film flow;
A second deflected spray is formed by forming a second thin film flow that is positioned outside the first thin film flow and deflects in the same direction after being split from the nozzle and splitting into a particle group flow. A member,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow,
An external electric field generated by applying a voltage between the first induction electrode unit and the spraying agent side electrode unit is applied to the spraying agent in the vicinity of the splitting part of the first thin film flow by the first deflecting spraying member. And an external electric field generated by applying a voltage between the second induction electrode part and the spray agent side electrode part, and in the vicinity of the splitting part of the second thin film flow by the second deflection spray member 92. The charging and spraying method of a charging and spraying apparatus according to claim 91, wherein the charging and spraying agent is charged by being charged.
The nozzle is formed with a central nozzle hole and a ring-shaped nozzle hole coaxially around the rear thereof,
The first deflecting spray member is a first deflector having a cone shape or a pyramid shape for deflecting the spray agent discharged from a central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
The said 2nd deflection | distribution spreading | diffusion member is a 2nd deflector which has a conical shape which deflects the said spraying agent discharge | released from the ring-shaped nozzle hole of the said nozzle to a conical surface thin film flow, It is characterized by the above-mentioned. Charge charging method of the charging spraying device described.
92. The electrification device according to claim 91, wherein the first induction electrode portion and the second induction electrode portion are made of metal, resin, fiber bundle, rubber, or a composite having conductivity. Spraying method.
92. The charging spray method of the charging spray device according to claim 91, wherein a part or all of the first induction electrode portion and the second induction electrode portion are covered with an insulating material.
92. The charge spraying method of a charge spraying device according to claim 91, wherein the spraying agent side electrode portion is at least a part of the spraying agent supply flow path in the charge spraying head or the nozzle.
92. The charging according to claim 91, wherein a voltage of the spray agent side electrode portion is set to a predetermined reference value, and a predetermined charging voltage is applied to the first induction electrode portion and the second induction electrode portion. Charging method of the spraying device.
98. A charging spraying method for a charging spraying apparatus according to claim 97, wherein a predetermined charging voltage in the form of direct current, alternating current or pulse is applied to the first induction electrode section and the second induction electrode section.
99. The charging spraying method for a charging spraying apparatus according to claim 97, wherein the deflection spraying members having different numbers are provided for one or a plurality of the induction electrode portions.
99. The charging spraying method for a charging spraying apparatus according to claim 99, wherein a plurality of sets of the deflection spraying members having different numbers are provided as one set for one or a plurality of the induction electrode portions.