TWI383815B - Fire and disaster prevention equipment, spraying methods, spray air-conditioning equipment and spray methods - Google Patents

Description

Fire disaster prevention equipment, spraying method, spray air conditioning equipment and spraying method Field of invention

The present invention relates to a fire disaster prevention device and a spraying method for spraying a water-based fire extinguishing agent containing water, sea water, and a fire extinguishing agent from a shower head.

Further, the present invention relates to a spray air-cooling apparatus and a spray method for spraying spray water to a cold air object space such as an open space through which a person passes.

Background of the invention

It is known that such water system fire prevention equipment includes sprinkler fire reduction, water spray fire extinguishing equipment or water mist fire extinguishing equipment. In particular, the water particles of the water mist fire extinguishing device are 20~200 μm smaller than the sprinkler equipment or the water spray equipment, and are ejected from the space to prevent the cooling effect and the oxygen supply effect of the evaporated water, and the fire extinguishing effect of the water amount is expected.

In recent years, sprinkler fire extinguishing equipment, water spray fire extinguishing equipment or water mist fire extinguishing equipment using water as a fire extinguishing agent are used to extinguish fire from the environment or the human body with a fire extinguishing agent such as carbon dioxide or nitrogen. Re-examine the agent.

Moreover, it is known that an air-conditioning apparatus that can be applied to an open space for a person to pass through or a space for various uses is known to pressurize cooling water to a spray head, spray micro-spray water, and cool the space by gasification heat of micro-spray water. Spray air conditioning equipment.

This type of spray air-conditioning equipment is supposed to be sprayed with micro-spray water from a spray head. When evaporating in space, it takes away the latent heat of evaporation and lowers the temperature of the air. Because the micro-spray water directly contacts the skin of the human body, it instantly evaporates on the skin, taking away the heat of vaporization and imparting a cool feeling.

[Patent Document 1] Japanese Patent Laid-Open Publication No. Hei 11-192320

[Patent Document 2] Japanese Patent Laid-Open Publication No. Hei 10-118214

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2006-149294

Invention

However, the conventional sprinkler fire extinguishing equipment or water spray fire extinguishing equipment has high fire extinguishing capability, but it is recognized by the public. However, in order to ensure the fire extinguishing ability, the amount of water sprayed is increased, and the flooding disaster during fire extinguishing or fire extinguishing is reduced.

On the other hand, water mist fire extinguishing equipment with less water disasters fills the space with smaller water particles, and in order to achieve the cooling effect and the oxygen supply effect of the evaporated water, the fire extinguishing ability is not high.

The main reason is that the molecular motion of the high-temperature air that contacts the high-temperature burning object does not adhere to the small water particles, and the effect of being wetted by the burning surface is small.

Moreover, the conventional spray cooling device is small in that the weight of the water vapor is about 60% of the weight of the air, so that the micro spray water sprayed from the spray head evaporates, and the air of the lowered temperature is buoyant due to the evaporation of the water vapor. When the micro-spray water is mixed, the proportion of the air in the appearance increases, but there is a tendency to float upward. Further, when the temperature of the air is lowered, the air of high temperature flows in from the surroundings, and as a result, the cold air of the period is not obtained. The problem of the effect.

The present invention is directed to providing a fire prevention and disaster prevention apparatus and a spraying method capable of effectively extinguishing and suppressing fires with a spray amount of a water-based fire extinguishing agent.

Further, the present invention provides a spray air-conditioning apparatus and a spray method which impart sufficient cooling feeling to the spray of spray water.

(fire disaster prevention equipment)

The present invention provides a fire prevention and disaster prevention device, which comprises a fire extinguishing agent supply device for supplying a water-based fire extinguishing agent by piping, and is disposed in a guard zone, so that the sprayed particles of the fire extinguishing agent supplied by the above-mentioned fire extinguishing agent supply device are charged. A post-sprayed powered sprinkler head and a voltage applying portion that applies a charged voltage to the charged sprinkler head.

Here, the charged sprinkler head has an injection nozzle that is sprayed with a water-based fire-extinguishing agent in an external space, is sprayed into particles, and is disposed on the injection space side of the injection nozzle, and is disposed inside the injection nozzle. a water-side electrode portion of the water-based fire extinguishing agent; the voltage applying unit applies an external electric field generated by applying a voltage between the sensing electrode portion and the water-side electrode to a water-based fire extinguishing agent that is sprayed by the spray nozzle The sprayed particles are charged.

The water-side electrode portion of the charged sprinkler head is a portion of a pipe using a conductive material or a pipe using a conductive material.

The sensing electrode portion of the charged sprinkler head has a conductive metal, a conductive resin or a conductive rubber or a composite of the same, and has a ring shape, a cylindrical shape, a vertical flat plate shape, Any of parallel plate shapes, linear shapes, or wire mesh shapes.

The charged sprinkler head is configured such that the voltage of the water-side electrode portion is 0 volt and is grounded, and a predetermined charging voltage from the voltage applying portion is applied to the sensing electrode portion.

The voltage applying unit applies a predetermined charging voltage of a direct current, an alternating current, or a pulse to the sensing electrode unit. The voltage applying unit applies a predetermined voltage of not more than ±20 kV to the sensing electrode portion.

A part or all of the sensing electrodes are covered with an insulating material.

The water-based fire extinguishing agent is water containing water, sea water, and a chemical for strengthening the fire extinguishing power.

(spray method for fire disaster prevention equipment)

The invention provides a spraying method for a fire disaster prevention device, which is characterized in that, in a fire, a water-based fire extinguishing agent is pressurized and supplied to a charged sprinkler head disposed in a guarding section by a pipe, and is fired by a pressurized supply from the charged sprinkler head. When the particles are sprayed, the sprayed particles are charged and sprayed.

(spray air conditioning equipment)

The present invention provides a cold air gas supply device for supplying cold air with water by piping, and is disposed in a cold air object space, so that the cold air is sprayed with the spray water supplied by the cold air water supply device. A post-injection charged spray head and a voltage applying portion that applies a charged voltage to the charged spray head.

Here, the charged spray head has a spray nozzle that ejects water into the cold air of the external space, is converted into water particles, and is disposed on the injection space side of the spray nozzle, and is disposed inside the spray nozzle. a water-side electrode portion for cold air; the voltage application unit generates a voltage by applying a voltage between the sensing electrode portion and the water-side electrode; The external electric field is applied to the cold air in the spraying process by the aforementioned spray nozzle, and the water particles are charged.

The water-side electrode portion of the charged spray head is a part of a spray nozzle using a conductive material or a pipe using a conductive material.

The sensing electrode portion of the charged spray head is a composite of a conductive metal, a conductive resin or a conductive rubber or a composite thereof, and has a ring shape, a cylindrical shape, a vertical flat plate shape, and a parallel shape. Any of a plate shape, a line shape, or a wire mesh shape.

The charged spray head is such that the voltage of the water-side electrode portion is 0 volt and is grounded, and a predetermined charging voltage from the voltage applying portion is applied to the sensing electrode portion. The voltage applying unit applies a DC voltage of between 0.3 kV and 20 kV to the sensing electrode portion. The charged spray head ejects spray water having an average particle diameter of 100 μm or less.

The present invention provides a spray method for a spray air-conditioning apparatus, which supplies cold air with water to a charged spray head provided in a cold air object space by means of a pipe, and sprays water of cold air with water sprayed from the charged spray head. At the time, the spray water is charged and sprayed.

According to the fire disaster prevention device of the present invention, if the water particles sprayed from the charged spray head are charged, the Coulomb force not only causes the adhesion of the water particles to the high temperature combustion surface, but also the adhesion of the water particles on all sides of the combustion material. Compared with the non-charged general water particles, the wetting effect can be greatly increased, and the fire extinguishing power is improved.

Moreover, when only a negative charge is electrically sprayed, the repulsion acts on the water in the space. Between the particles, the probability of growth and falling after the collision meets is small, and the density of water particles remaining in the space is also the main reason for the high fire-extinguishing power.

After the inventors of the present invention conducted the fire extinguishing experiment, it was confirmed that the fire-retardant performance of the epoch-making was unexpectedly improved as compared with the conventional uncharged spraying. According to the charged spray of the present invention, an equivalent fire extinguishing effect is obtained with about 1/4 of the amount of fire extinguishing water when the conventional uncharged spray is applied.

Further, according to the charged spraying of the present invention, it was confirmed experimentally that the smoke-free performance of the smoke generated during the fire was greatly improved as compared with the conventional uncharged spraying, which was an unexpected effect that was not originally expected. According to the charged spraying of the present invention, the same amount of fire extinguishing effect is obtained by about 1/5 of the amount of fire extinguishing water in the conventional uncharged spraying.

Further, according to the spray air-conditioning apparatus of the present invention, by the spray water of the charged spray head being charged, the Coulomb force can be increased to the amount of adhesion to the human skin, and the cooling feeling can be improved.

Moreover, since the water particles sprayed in the space are respectively charged, the repulsion acts between the water particles, and the probability of growth and fall after the collision meets is small, and the water particles remaining in the space increase, and the air specific gravity of the mixed spray water is less charged. When it is increased, it can suppress the tendency to float upward, and it can increase the effect of air-conditioning.

Furthermore, since the spray water of the charged spray head is negatively charged, it is possible to create a state similar to the Lerner effect called "natural waterfall", and it is possible to increase the cooling feeling.

Simple illustration

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an embodiment of the fire prevention and disaster prevention apparatus of the present invention Figure.

Fig. 2 is an explanatory view showing the protection area A of Fig. 1 taken.

3(A) to 3(B) are explanatory views showing an embodiment of a charged sprinkler head using a ring-shaped sensing electrode portion.

Fig. 4(A) to Fig. 4(B) are explanatory diagrams showing the experimental results of confirming the charge of the smoke of the fire.

Fig. 5 is a graph showing the results of experiments confirming the effect of the smoke extinguishing of the present embodiment.

Fig. 6(A) to Fig. 6(F) show the schedule of the applied voltage supplied to the charged sprinkler head of the present embodiment.

7(A) to 7(B) are explanatory views showing another embodiment of the charged sprinkler head using the cylindrical sensing electrode portion.

8(A) to 8(B) are explanatory views showing another embodiment of a charged sprinkler head using a wire mesh-shaped sensing electrode portion.

Fig. 9(A) to Fig. 9(B) are explanatory views showing another embodiment of the charged sprinkler head using the parallel plate sensing electrode portion.

Figs. 10(A) to 10(B) are explanatory views showing another embodiment of the charged sprinkler head using the needle-shaped sensing electrode portion.

Fig. 11 is an explanatory view showing an embodiment of the spray air-conditioning apparatus of the present invention.

Fig. 12 is an explanatory view showing the spray cold air region A of Fig. 1 taken.

Fig. 13(A) to Fig. 13(D) are diagrams showing an embodiment of a charged spray head using a ring-shaped sensing electrode portion.

The best form for implementing the invention (fire disaster prevention equipment)

Fig. 1 is an explanatory view showing an embodiment of the fire prevention equipment of the present invention. In Fig. 1, the charged sprinkler head 10 of the present embodiment is installed on the ceiling side of the protective areas A and B such as a computer room in a building.

The charged sprinkler head 10 is connected to the pipe 16 by a manual valve (separating valve) 13 from the protruding side of the pump unit 12 provided with the water source 14 having the function as a fire extinguishing agent supply device, and the pipe 16 is divided and regulated by the pressure. The valve 30 and the automatic opening and closing valve 32 are connected to the charged sprinkler head 10 provided in the guard areas A and B, respectively.

A dedicated fire sensor 18 for controlling the spraying of the charged sprinkler head 10 is provided in the protective areas A, B, respectively. Further, the interlocking control relay device 20 is provided for each of the protection areas A and B, and further, the manual operation box 22 for performing the spray control of the charging head 10 by manual operation is provided.

The linkage control relay device 20 connects the signal lines from the dedicated fire sensor 18 and the manual operation box 22, and pulls out a signal line for applying a charged driving voltage to the charged shower head 10 and switches the automatic on-off valve. 32 signal line.

Further, a fire sensor 26 for the automatic fire alarm device is provided in the protection area A, and is connected to the sensor circuit of the receiver 28 of the automatic fire alarm device. In addition, the fire area sensor 26 of the automatic fire alarm device is not provided in the protection area B, and may of course be set as needed.

The interlocking control relay device 20 provided for the protection areas A and B is connected to the system The control panel 24 is monitored. The system monitoring control panel 24 is also coupled to the receiver 28 of the automatic fire alarm device. Further, the system monitors the control panel 24 to connect the pump unit 12 with a signal line to control the pump start stop of the pump unit 12.

Fig. 2 is an explanatory view showing the protection area A of Fig. 1 taken. A charged sprinkler head 10 is provided on the ceiling side of the protective area A. The charged sprinkler head 10 is connected to the pipe 16 from the pump unit 12 shown in Fig. 1 by the pressure regulating valve 30 and the automatic opening and closing valve 32.

Further, a voltage applying portion 15 is provided on the upper portion of the charged sprinkler head 10. As will be described later, a predetermined voltage is applied to the charged sprinkler head 10, and the fire extinguishing agent sprayed from the charged sprinkler head 10 is charged and sprayed. Further, a dedicated fire sensor 18 is provided on the ceiling side of the protective area A, and a fire sensor 26 of the automatic fire alarm device is also connected.

Fig. 3 is an embodiment of the charged sprinkler head 10 shown in Figs. 1 and 2, and in this embodiment, a ring-shaped sensing electrode portion is used.

In the third (A) diagram, the charged sprinkler head 10 is screwed into the front end of the upright pipe 34 that is fixed to the pipe connected to the pump unit 12. The cylindrical water-side electrode portion 40 is assembled by the insulating member 41 on the inner side of the front end of the head body 36.

As shown in FIG. 2, the water-side electrode portion 40 is pulled out of the ground cable 50 from the voltage application portion 15 provided at the upper portion, and is connected to the water-side electrode portion 40 provided in the head body 36 by the insulating member 41. With the connection of the ground cable 50, the water-side electrode portion 40 applies an applied voltage of 0 volts and is grounded to the ground side.

An injection nozzle 38 is provided on the lower side of the water-side electrode portion 40. The injection nozzle 38 is configured by a nozzle rotor 38a provided inside the water-side electrode portion 40 side and a nozzle head 38b provided on the distal end side.

The injection nozzle 38 receives the supply of the water-based fire-extinguishing agent supplied from the pump unit 12 of FIG. 1 from the upright pipe 34, and when the nozzle body 38a is sprayed from the nozzle head 38b to the outside, the water-based extinguishing agent is converted into particles and sprayed. In the present embodiment, the spray pattern sprayed from the spray nozzle 38 has a so-called full cone shape.

The cover 42 for the insulating material is screwed to the spray nozzle 38 by the fixing member 43. The lid 42 is a cylindrical member, and the opening portion of the lower side is assembled into the annular sensing electrode portion 44 by the screwing of the stopper ring 46.

As shown in Fig. 3(B), an opening 45 through which the ejection particles of the injection nozzle 38 pass is formed in the center of the annular body.

The ring-shaped sensing electrode portion 44 disposed at the lower portion of the cover 42 is pulled out from the voltage applying portion 15 at the upper portion shown in FIG. 2, and the voltage applying cable 48 is connected through a cover 42 made of an insulating material. A voltage can be applied to the ring-shaped sensing electrode portion 44.

Here, the water-side electrode portion 40 and the ring-shaped sensing electrode portion 44 used in the charged sprinkler head 10 of the present embodiment may be a conductive resin or a conductive rubber, in addition to a conductive metal. It can also be a combination of these.

When the water-based extinguishing agent is sprayed from the charged sprinkler head 10, the voltage applying unit 15 shown in Fig. 2 operates with the control signal of the interlocking control relay device 20 shown in Fig. 1, and the water-side electrode portion 40 is grounded at 0 volt. On the side, an applied voltage of a direct current, an alternating current or a pulse of not more than 20 kV is applied to the ring-shaped sensing electrode portion 44.

Thus, when the water side electrode portion 40 and the ring-shaped sensing electrode portion 44 are disposed When the voltage is several thousand volts, the voltage is applied to generate an external electric field between the electrodes, and the sprayed particles are charged by the process of converting the water-based fire extinguishing agent of the spray nozzle 38 into the sprayed particles, and the charged sprayed particles can be sprayed to external.

Next, the monitoring operation of the embodiment of Fig. 1 will be described. Now, when a fire occurs in the protected area A, the dedicated fire sensor 18 detects a fire, and the fire detection signal is transmitted to the system monitoring control panel 24 by the interlocking control relay device 20.

When the system monitor control panel 24 receives an alarm from the dedicated fire sensor 18 provided in the protection area A, the pump unit 12 is activated, the fire extinguishing water is taken from the water source 14, pressurized by the pump unit 12, and supplied to the pipe 16.

At the same time, the system monitor control panel 24 outputs a start signal of the powered sprinkler head 10 to the interlock control relay device 20 provided corresponding to the guard area A. Receiving the start signal, the interlocking control relay device 20 opens the automatic opening and closing valve 32, whereby the water-based fire extinguishing agent at a certain pressure regulated by the pressure regulating valve 30 is supplied to the charged sprinkler head 10 through the open automatic opening and closing valve 32. As shown in Fig. 2, the spray head 10 is sprayed from the charged spray head 10 to the guard area A.

At the same time, the interlocking control relay device 20 transmits an activation signal to the voltage applying portion 15 provided in the charged shower head 10 shown in Fig. 2, and receives the activation signal, and the voltage applying portion 15 supplies the charged shower head 10 with a DC of several thousand volts. , AC or pulsed applied voltage.

Therefore, when the charged sprinkler head 10 shown in Fig. 3(A) is sprayed by spraying the water-based extinguishing agent pressurized and supplied from the injection nozzle 38 into the sprayed particles, the water-side electrode portion 40 to which the ground cable 50 is connected is connected. 0 volt, pair connection A voltage of several thousand volts is applied to the side of the ring-shaped sensing electrode portion 44 of the voltage application cable 48, and an external electric field generated by the application of this voltage is applied to the opening 45 which is ejected from the ejection nozzle 38 through the annular sensing electrode portion 44. The water-based fire extinguishing agent in the spraying process is sprayed after the spray-converted spray particles are charged.

As shown in Fig. 2, the water particles sprayed from the charged spray head 10 toward the protective area A where the fire F occurs are charged by the water particles, so that the charged Coulomb force is efficiently attached to the high-temperature combustion source of the fire F, and at the same time The adhesion to all sides of the burning material is generated, and the water immersion effect on the burning material is greatly increased compared to the spraying of the conventionally uncharged water particles, and the fire extinguishing ability can be exhibited.

The charged sprinkler head 10 of the third (A) diagram has a water-side electrode portion 40 of 0 volts, and when a positive voltage is applied to the ring-shaped sensing electrode portion 44 in a pulsed manner, the sprayed water particles form a spray with only negative charge charging. In this way, when water particles that are only negatively charged are sprayed, the repulsion acts between the charged water particles in the space, whereby the probability of growth and falling after the impact is small is small, and the density of the water particles remaining in the space is increased, thereby Play a high fire extinguishing capacity.

Further, by spraying the charged water particles from the charged spray head 10 by the protective area A, it is possible to efficiently extinguish the smoke generated by the fire F.

The smoke-suppressing effect of the present embodiment is a catching action of the water-splitting effect of the water particles and the smoke particles with respect to the spraying effect of the conventional water particles. In the present embodiment, the water particles sprayed are charged, and the water is charged. The particles can capture the smoke particles that are also in a charged state by Coulomb force, thereby greatly exerting the effect of reducing smoke.

Here, the particle diameter of the water particles sprayed from the charged sprinkler head 10 of the present embodiment includes the particle diameter when the injection nozzle 38 of the third (A) diagram is used. In the present embodiment, the particle diameter of the water particles is not particularly limited. In consideration of the advantageous effect of the Coulomb force on the combustion material, it is preferable to use, for example, an injection nozzle 38 containing a plurality of water particles of 200 μm or less.

Next, the fire extinguishing effect of this embodiment will be described. As described above, in the spraying of the sprayed particles using the charged sprinkler head 10 of the present embodiment, the water particles are charged, and because of the Coulomb force, not only the adhesion on the high combustion surface but also the combustion material is generated. The adhesion of the surface is greatly increased compared to the conventional uncharged water particles, so that high fire extinguishing power can be obtained.

Furthermore, when only the negative charge is charged, the repulsion acts on the water particles in the space, and the probability of growth and falling is reduced, and the density of the water particles remaining in the air is also a major cause of the high fire-reducing ability.

For this reason, the fire-emitting performance of the charged radiation particles using the water-spraying head of the present embodiment is greatly improved compared with the spraying of the conventionally-charged water particles.

In order to confirm the improvement of the fire extinguishing performance, the inventors of the present invention conducted the following fire extinguishing experiments.

(First Experimental Example) Wood pile fire fire test result Experimental condition

Nozzle injection amount: 8 liters / minute at1MPa

Induction electrode voltage: 2 kV

Fire model: 12 mm angle, 150 mm angle material × 22

Fire agent: n-heptane is on fire

Fire fighting time

With charge: 14 seconds

No charge: 54 seconds

From the results of this experiment, the charged spray of the present embodiment obtained the same fire extinguishing effect by about 26% of the amount of fire extinguishing water, that is, about one-fourth of the amount of fire extinguishing water when the spray was not charged.

The inventors of the present invention confirmed the smoke extinguishing performance of the smoke generated at the time of the fire by experiments. Figure 4(A) shows a photograph of a synchronous oscilloscope with the state of charge of the smoke measured by the Faraday cage.

Figure 4(A) shows the output of a pass-through Faraday cage in a smokeless state, almost within a certain level of noise.

The 4th (B) diagram is the output of the Faraday cage through the smoke type, and the synchronous oscilloscope waveform vibrates greatly on the screen, indicating that the charged state of the smoke particles is significant.

The reason why the high-smoke effect is obtained by the electrification spraying of the present embodiment is that the trapping of the uncharged smoke is a means for capturing the probability of the smoke particles and the water particles colliding. In contrast, in the present embodiment, the water particles are charged. From the waveform of the synchronous oscilloscope in Fig. 4(B), it can be understood that since the smoke particles in the charged state are trapped by Coulomb force, the effect of eliminating smoke is increased.

For example, when the water particles in the charged state are 100-200 μm, the smoke particles in the charged state are 1~2 μm, and the Coulomb force captures many small smoke particles existing around the water particles. As a result, Get a greater smoke killing effect.

In order to confirm that the smoke suppressing effect of the present embodiment was increased, the following experiment was conducted.

(Second embodiment)

Nozzle injection amount: 8 liters / minute at1MPa

Induction electrode voltage: 2 kV

Release mode: pulsed application of water

Fire model: In a closed space of 1.8 cubic meters, 50 ml of gasoline was burned. After filling with smoke, 5 times of spraying was performed with 60 seconds of water discharge and 120 seconds to measure the change of the concentration of the smoke.

Fig. 5 is a graph showing the experimental results of the second experimental example. The experimental results in Fig. 5 show the elapsed time on the horizontal axis and the smoke concentration on the vertical axis. The experimental characteristic 100 is the electrified spraying of the present embodiment, and the experimental characteristic 200 is a conventional uncharged spraying.

In Fig. 5, at time t1, when the gasoline is ignited, as shown by the experimental characteristics 100, 200, the smoke concentration increases sharply. When actually observed from the outside, the enclosed space is completely black due to the burning smoke, and is completely invisible. status.

Next, spraying is started at time t2. The experimental characteristic 100 of the present embodiment is the first time that the first electrification spraying is performed from time t2 to t3, and the first time the charged spraying is performed, the smoke concentration is rapidly reduced by 1.3%.

The change of the smoke concentration at this time t2 to t3 is that the smoke state in the all-black enclosed space during the visual viewing is gradually disappeared, and the smoke in the state of the inside is slightly visible, which is sprayed in only 60 seconds. In between.

Then, after the interval of 120 seconds is completed, the second electrified spraying is performed at time t4 to t5. Hereinafter, charged spraying is repeatedly performed at t6 to t7, t8 to t9, and t10 to t11, and as the number of electrified spraying increases, The concentration of smoke in the fifth time is almost zero percent, that is, it can be extinguished to a completely smokeless state.

On the other hand, the conventional characteristic 200 for the non-charged spraying is the same as the experimental characteristic of the present embodiment, at time t2 to t3, time t4 to t5, time t6 to t7, time t8 to t9, and time t10 to t11. Secondly, the uncharged spray is performed at intervals of 120 seconds, and the decrease in the smoke concentration is slow. Compared with the experimental characteristics of the present embodiment, the conventional uncharged experimental characteristic 200 is almost double the smoke concentration. From the comparison of the experimental results, It was confirmed that this embodiment can obtain a large smoke eliminating effect.

It is clear from the experimental results shown in Fig. 5 that the effect of the smoke extinguishing of the present embodiment is that the inventor of the present invention has a certain degree of prediction on the fire extinguishing effect at the stage of obtaining the idea of putting the electrified spray into the fire. The effect of the smoke is not expected to be significant.

Incidentally, according to the experimental results of FIG. 5, it can be confirmed from the results of the time variation of the concentration of the smoke of the charged spray and the uncharged spray under the same spray water amount, the charged spray according to the present embodiment can be known. About one-fifth of the amount of spray water without electricity is equivalent to the effect of eliminating smoke.

Fig. 6 is a time chart showing the applied voltage applied to the charged shower head 10 from the voltage applying unit 15 of the present embodiment.

The 6th (A) diagram is a case where a +V DC voltage is applied, and at this time, the negatively charged water particles are continuously sprayed.

Figure 6(B) shows the application of a -V DC voltage, in which case the positively charged water particles are continuously sprayed.

Figure 6(C) shows the application of an alternating voltage of ±V. At this time, during the positive half cycle, the negatively charged water particles are continuously sprayed with the change of the alternating voltage, during the negative half cycle, with the exchange Voltage change, even Continue to spray positively charged water particles.

The sixth (D) diagram is a case where a pulse voltage of +V is applied at a predetermined time interval, and at this time, the negatively charged water particles are intermittently sprayed, and the non-charged water particles are sprayed during the period when no voltage is applied.

The sixth (E) diagram is a case where a pulse voltage of -V is applied at a predetermined time interval, and at this time, the positively charged water particles are intermittently sprayed, and during the period in which no voltage is applied, the water particles are uncharged.

The 6th (F) diagram is a case where a ±V pulse voltage is alternately applied at predetermined intervals, and at this time, the negatively charged water particles and the positively charged water particles are alternately sprayed at intervals, and during the period when no voltage is applied, Spraying of uncharged water particles.

The voltage application unit 15 that supplies the charged voltage shown in Fig. 6 to the charged shower head 10 can use a commercially available boosting unit having a control input. The commercially available booster unit can output DC0~20 kV to the output when DC0~20 volts is applied to the input, and such a commercially available unit can be utilized.

Fig. 7 is an explanatory view showing another embodiment of a charged sprinkler head using a cylindrical sensing electrode portion. In the seventh embodiment, the head 40 is screwed to the front end of the upright pipe 34, and the water side electric portion 40 is disposed inside the head body 36 via the insulating member 41. Here, the ground cable 50 is connected from the upper portion.

The injection nozzle 38 is disposed below the water-side electrode portion 40. The injection nozzle 38 is constituted by a nozzle body (rotor) 38a and a nozzle head 38b, and a cylindrical cover 56 is attached to the outer side of the lower portion of the nozzle head 38b by a fixing member 43. The cylindrical induction electrode portion 52 is disposed on the opening of the lower end of the cover 56 by the screwing of the stopper ring 58. internal.

As shown in the plan view shown in Fig. 7(B), the cylindrical sensing electrode portion 52 has a through hole 54 formed inside the cylindrical body. The cover 56 of the insulating material is inserted into the cylindrical sensing electrode portion 52, and the cable 48 is connected to supply a voltage for applying a charging.

The charged sprinkler head 10 using the cylindrical sensing electrode portion 52 ejects the pressurized water-based fire extinguishing agent from the spray nozzle 38, and when the water particles are sprayed, the water-side electrode portion 40 is made 0 volt, and the cylindrical sensing electrode portion 52 is used. A voltage of several thousand volts is applied to charge the space of the through hole 54 of the cylindrical sensing electrode portion 52 where the external electric field generated thereby is generated by the ejection process of the water particles radiated from the ejection nozzle 38, and can be sprayed and charged. Water particles.

Fig. 8 is an explanatory view showing another embodiment of a charged sprinkler head using a wire mesh-shaped sensing electrode portion. The charged sprinkler head 10 of Fig. 8(A) screwes the head main body 36 to the lower portion of the upright pipe 34, and the water-side electrode portion 40 is disposed inside the insulating member 41, and the ground cable 50 is connected thereto. A cover 62 is attached to the lower side of the injection nozzle 38 by a fixing member 43, and a metal mesh-shaped sensing electrode portion 60 is attached to the opening inside the cover 62.

The wire mesh-shaped sensing electrode portion 60 has a planar shape as shown in Fig. 8(B), and a metallic wire mesh having a predetermined mesh is used. The cover 62 is an insulating material, and the voltage application cable 48 is inserted through the cover 62 and connected to the wire mesh-shaped sensing electrode portion 60 to apply a voltage.

In the embodiment of Fig. 8, when the water-based fire extinguishing agent is sprayed from the injection nozzle 38 and converted into water particles, a pulse or alternating voltage of several thousand volts is applied to the wire mesh-shaped sensing electrode portion 60 side to the injection nozzle 38. Jet empty An external electric field is generated to cause the ejected particles passing therethrough to be charged while passing through the opening of the mesh of the gold mesh-shaped sensing electrode portion 60, and the charged water particles can be sprayed.

Fig. 9 is an explanatory view showing an embodiment of a charged sprinkler head using a parallel plate sensing electrode portion. The charged sprinkler head 10 of Fig. 9 screwes the spray nozzle 68 to the lower portion of the upright pipe 34. In this embodiment, since the water-side electrode portion uses the upright pipe 34, the connection ring 66 is used for the upright pipe 34, and the ground cable 50 is directly connected.

The ring retainer 70 is screwed to the lower portion of the jet nozzle 68, and the pair of plate retainers 70 and the pair of plate-shaped retainers 72a and 72b are suspended in a cantilever manner in parallel with each other. The parallel plate sensing electrode portions 74a and 74b are fixed to the opposite faces of the inside of the holders 72a and 72b. The plan view of the parallel plate sensing electrode portions 74a and 74b as viewed from the lower side thereof is arranged in parallel as shown in Fig. 9(B).

The holders 72a and 72b are made of an insulating material, and the voltage application cables 48 are connected to the parallel plate sensing electrode portions 74a and 74b by the branch cables 48a and 48b which are branched by the branch portions 76, and application of several thousand volts is applied. Voltage.

The charged nozzle head 10 of the ninth embodiment sprays the water-based fire extinguishing agent from the spray nozzle 68, and sprays the sprayed particles between the vertical pipe 34 as the water-side electrode portion and the parallel-plate sensing electrode portions 74a and 74b arranged in parallel on the front end side. A voltage of several thousand volts is applied, and an external electric field is generated in a space sandwiched between the parallel plate sensing electrode portions 74a, 74b, and the water particles ejected from the ejection nozzle 68 pass through the external electric field to charge the water jet particles, and can be sprayed and charged. Water particles.

Fig. 10 is an explanatory view showing another embodiment of a charged sprinkler head using a needle-shaped sensing electrode portion. The charged sprinkler head of Figure 10(A) will spray The nozzle 68 is screwed into the front end of the upright pipe 34 used as the water side electrode portion, and the ground cable 50 is electrically connected to the upright pipe 34 by the connection of the connection ring 66.

The ring holder 80 is attached to the front end side of the injection nozzle 68 by a fixing member 43. The needle-shaped induction electrode portion 78 is attached to the lower portion of the ring holder 80. The needle-shaped sensing electrode portion is bent in an inverted L shape, and has a needle shape in which the tip end is obliquely bent from the opening of the ejection nozzle 68, and a plan view seen from the lower side thereof is shown in Fig. 10(B).

The voltage application cable 48 is electrically connected to the needle-shaped sensing electrode portion 78 attached to the ring holder 80.

In this embodiment, when the water-based fire extinguishing agent is sprayed from the spray nozzle 68 and is converted into water particles and sprayed, thousands of volts are applied between the upright pipe 34 having the function of the water-side electrode portion and the needle-shaped sensing electrode portion 78 disposed on the tip end side of the nozzle. The voltage generates an external electric field in a space between the nozzle opening portion and the front end of the needle-shaped sensing electrode portion 78, and converts this into an injection process of water particles ejected from the ejection nozzle 68 to charge the ejection particles to charge the water particles. spray.

(spray air conditioning equipment)

Fig. 11 is an explanatory view showing an embodiment of the spray air-conditioning apparatus of the present invention. In the eleventh diagram, the spray cold air regions A and B are the cold air object spaces such as the open space through which the humans pass, and the positions in the spray cold air regions A and B, such as the heights that do not obstruct the passage of people, are set in the present embodiment. The charged spray head 110.

The charged spray head 110 is connected to the pipe 116 by a manual valve (separating valve) 114 and a remote opening and closing valve 122c from the discharge side of the pump unit 112 provided as the cold air water supply device, and the pipe 116 is separated by the distal end. The switching valves 122a, 122b are connected to the charged spray heads disposed in the spray cold air regions A, B 110.

An environmental sensor 118 is disposed in the spray cold air regions A, B, and is connected to the system control panel 120 by a signal line. The environmental sensor 118 measures the temperature, temperature, rainfall, wind speed, and the like of the spray cold air regions A and B, and transmits them to the system control panel 120.

The remote control valves 120a-122d are connected to the system control panel 120 by signal lines, and the switches can be controlled at the remote end. When the spray air conditioner is stopped, the system control panel 20 causes the remote switch valves 122a to 122c to be in a closed state, so that the remote control valve 22d is open.

Moreover, when the spray control air conditioner is started, the remote control valve 122d on the drain side is closed, and at the same time, the remote control valves 122a to 122c are opened, and at the same time, the pump unit 112 is activated to use the cold air. The pressure is supplied to the charged spray head 110.

Fig. 12 is an explanatory view showing the spray cold air region A of Fig. 1 taken. A charged spray head 110 is disposed at a height of the spray cold air area A. The charged spray head 110 is connected to the pipe 16 of the pump unit 112 shown in Fig. 1 by the distal opening and closing valve 122a.

Further, a voltage applying portion 115 is provided above the charged spray head 110. As will be apparent from the following description, a predetermined voltage is applied to the charged spray head 110, and the spray water sprayed from the charged spray head 110 is charged to be sprayed.

Fig. 13 is an embodiment of the charged spray head 110 shown in Figs. 11 and 12, and the embodiment is characterized in that a ring-shaped sensing electrode portion is used.

In the thirteenth (A) diagram, the charged spray head 110 is screwed into the front end of the upright pipe 134 which is fixed to the pipe connected to the pump unit 112. The inner side of the front end of the head body 136 is assembled into the cylindrical water-side electrode portion by the insulating member 141. 140.

As shown in Fig. 12, the water-side electrode portion 140 is pulled out of the ground cable 150 from the voltage application portion 115 provided at the upper portion, and is connected to the water-side electrode portion 140 provided inside the head body 136 by the fixing member 143. With the connection of the ground cable 150, the water-side electrode portion 140 applies an applied voltage of 0 volts and is grounded to the ground side.

A spray nozzle 138 is provided on the lower side of the water-side electrode portion 140. The spray nozzle 138 is configured by a nozzle rotor 138a provided inside the water-side electrode portion 140 side and a nozzle head 138b provided on the front end side.

The spray nozzle 138 receives the supply of the cold air supplied from the pump unit 112 of FIG. 1 from the vertical pipe 134, and when the nozzle body 138a is sprayed from the nozzle head 138b to the outside, the cold air is converted into fine water particles and then injected. . In the present embodiment, the spray water of the spray nozzle 138 is spray water having an average particle diameter of 100 μm or less.

The cover 142 of the insulating material is fixed to the spray nozzle 138 by the fixing member 143 by screwing. The cover 142 is a substantially cylindrical member, and is formed in the opening portion of the lower side by the screwing of the stopper ring 146 into the annular sensing electrode portion 144.

As shown in Fig. 13(B), the annular sensing electrode portion 144 forms an opening 144a through which the ejection particles of the spray nozzle 138 pass in the center of the annular body.

The ring-shaped sensing electrode portion 144 disposed at the lower portion of the cover 142 is pulled out from the voltage applying portion 115 at the upper portion shown in Fig. 12, and the voltage applying cable 148 is inserted through a cover 142 made of an insulating material. A voltage can be applied to the ring-shaped sensing electrode portion 144.

Furthermore, the front end of the vertical pipe 134 is combined with the water side electrode portion 140. Water leakage prevention valve 145. As shown in Fig. 13(C) and Fig. 13(D), the water leakage preventing valve 145 is a rubber valve member, and a slit 145a is formed in the center of the disk-shaped rubber member.

When the water leakage prevention valve 145 is sprayed with water in the cold air, the rubber is bent and deformed by the supply of the pressurized cold air with water, whereby the slit 145a is opened, and the cold air passes through. On the other hand, when the spray of the cold air is stopped, the slit 145a is closed, thereby preventing the dripping of the cold air remaining on the side of the pipe with water.

Here, the water-side electrode portion 140 and the ring-shaped sensing electrode portion 144 used in the charged spray head 110 of the present embodiment may be a conductive resin or a conductive rubber, in addition to a conductive metal. Can be a combination of these.

When the cold air is sprayed from the charged spray head 110, the voltage application unit 115 shown in Fig. 12 operates with the control signal of the system control panel 120 shown in Fig. 11, so that the water-side electrode portion 140 is at the ground side of 0 volt, The ring-shaped sensing electrode portion 144 applies a predetermined DC applied voltage between 0.3 kV and 20 kV.

As described above, when a voltage of several thousand volts is applied between the water-side electrode portion 140 and the ring-shaped sensing electrode portion 144, an external electric field is generated between the electrodes by the voltage, and the cold air is converted from the spray nozzle 138 into the jet of the sprayed particles by the cold air. The process charges the sprayed particles, and the charged sprayed particles are sprayed to the outside.

Next, the monitoring operation of the embodiment of Fig. 11 will be described. When the system control panel 120 determines whether the cold air starting time set by the timer is reached, the remote side switching valve 122d on the drain side is closed, and the remote switching valve is turned on. When the control is turned on at 122a to 122c, the pump unit 112 is activated, and the cold air of the water source is supplied to the pipe 116 by pressurization.

In addition to setting the time of the timer, the system monitoring disk 120 can also be manually operated by the manager, and measured from the temperature, humidity, rainfall, wind speed, etc. of the environmental sensor 118 disposed in the spray air-cooling areas A and B. The data is automatically started when the predetermined start condition is obtained.

Simultaneously, the system control panel 120 transmits a start signal to the voltage application unit 115 provided in the charged spray head 110 shown in Fig. 12, and receives the start signal, and the voltage application unit, simultaneously with the supply of the cold air by the pump unit 20. 115 pairs of charged spray heads 110 are supplied with a DC applied voltage of several thousand volts.

Therefore, when the charged spray head 110 shown in Fig. 13(A) is sprayed from the spray nozzle 138 by the injection of the pressurized cold air into the sprayed particles, the water-side electrode portion 140 to which the ground cable 150 is connected is set to 0. Volt, a voltage of several thousand volts is applied to the side of the ring-shaped sensing electrode portion 144 to which the voltage application cable 148 is connected, and an external electric field generated by the application of this voltage is applied to the ejection from the spray nozzle 138 through the annular sensing electrode portion 144. The cold air of the injection process of the opening 145 is water-charged, and the jet-converted jet particles are charged and then ejected.

As shown in Fig. 12, the water particles ejected from the charged spray head 110 toward the spray cold air region A are charged by the water particles, so that due to the charged Coulomb force, the human skin adheres to the skin in the passing region efficiently and adheres to the skin. When evaporating, take away the heat of vaporization, and it can give a high-definition cool feeling.

Further, the charged spray head 110 of Fig. 13(A) has the water side electrode portion 140 at 0 volts, and when a positive direct current voltage is applied to the ring-shaped sensing electrode portion 144, the injected water particles are only negatively charged. Thus, when spraying only water particles that are negatively charged, The repulsion acts on the charged water particles in the space, whereby the probability of the water particles colliding and falling and growing is small, the density of the water particles remaining in the space is increased, and the proportion of the air in the appearance of the mixed spray water is increased when it is less charged. It can suppress the tendency to drift upwards, and can increase the effect of air-conditioning.

Further, since the spray water of the charged spray head is negatively charged, it is created in the same state as the so-called Lerner effect generated in the natural waterfall, and the cooling feeling can be increased.

Further, in the charged sprinkler head 10 of the fire disaster prevention apparatus used in the present embodiment, various structures shown in the above embodiments can be applied, and the present invention is not limited thereto, and a charged sprinkler head having an appropriate structure can be used.

Further, the charged voltage applied to the charged sprinkler head is also determined to be the side of the combustion member to be fire-extinguished, and the water-side electrode portion is appropriately set to 0 volts as required, and the sense electrode portion is positively and negatively applied with a voltage, and only a positive applied voltage is applied. Or only apply a negative voltage.

Further, the charged spray head 210 used in the spray air-conditioning apparatus of the present embodiment can be directly applied to the charged spray head 10 of Figs. 4 to 7 used in the fire prevention equipment, in addition to the embodiment of Fig. 13.

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

10‧‧‧Electrical sprinkler head

12‧‧‧ pump unit

13‧‧‧Manual valve

14‧‧‧Water source

15‧‧‧Voltage application department

16‧‧‧Pipe

18‧‧‧Special fire sensor

20‧‧‧Linked control relay

22‧‧‧Manual operation box

24‧‧‧System Monitoring Control Panel

26‧‧‧Fire Sensor

28‧‧‧ Receiver

30‧‧‧pressure regulator

32‧‧‧Automatic on-off valve

34‧‧‧Upright plumbing

36‧‧‧ head body

38‧‧‧jet nozzle

38a‧‧‧Nozzle rotor

40‧‧‧Water side electrode

41‧‧‧Insulating components

42‧‧‧ Cover

43‧‧‧Fixed components

44‧‧‧Circular sensing electrode

45‧‧‧ openings

46‧‧‧stop ring

48‧‧‧Voltage application cable

50‧‧‧Ground cable

52‧‧‧Cylindrical induction electrode

54‧‧‧through holes

56‧‧‧ Cover

58‧‧‧stop ring

60‧‧‧Metal wire mesh sensing electrode

62‧‧‧ Cover

64‧‧‧stop ring

66‧‧‧Connecting ring

68‧‧‧jet nozzle

70‧‧‧ Ring Holder

72a‧‧‧ Keeper

72b‧‧‧keeper

74a‧‧‧Parallel plate sensing electrode

74b‧‧‧Parallel plate sensing electrode

76‧‧‧Differentiation Department

78‧‧‧ Needle-shaped induction electrode

80‧‧‧ Ring Holder

110‧‧‧Electrical sprinkler head

112‧‧‧ pump unit

114‧‧‧Manual valve

115‧‧‧Voltage application department

116‧‧‧Pipe

118‧‧‧Environmental Sensor

120‧‧‧System Control Panel

122a~122d‧‧‧Remote on-off valve

132‧‧‧Automatic on-off valve

134‧‧‧Upright plumbing

136‧‧‧ head body

138‧‧‧jet nozzle

138a‧‧‧Nozzle rotor

140‧‧‧Water side electrode

141‧‧‧Insulating components

142‧‧‧ Cover

143‧‧‧Fixed components

144‧‧‧Circular sensing electrode

145‧‧‧Water leakage prevention valve

145a‧‧‧ gap

146‧‧‧stop ring

148‧‧‧voltage application cable

150‧‧‧Ground cable

152‧‧‧Cylindrical induction electrode

154‧‧‧through holes

A‧‧‧protected area

A‧‧‧ spray air-cooling area (Fig. 12)

B‧‧‧protected area

B‧‧‧ spray air-cooling area (Fig. 12)

F‧‧‧Fire

Fig. 1 is an explanatory view showing an embodiment of the fire prevention equipment of the present invention.

Fig. 2 is an explanatory view showing the protection area A of Fig. 1 taken.

3(A) to 3(B) show the band using the ring-shaped sensing electrode An illustration of an embodiment of an electric sprinkler head.

Fig. 4(A) to Fig. 4(B) are explanatory diagrams showing the experimental results of confirming the charge of the smoke of the fire.

Fig. 5 is a graph showing the results of experiments confirming the effect of the smoke extinguishing of the present embodiment.

Fig. 6(A) to Fig. 6(F) show the schedule of the applied voltage supplied to the charged sprinkler head of the present embodiment.

7(A) to 7(B) are explanatory views showing another embodiment of the charged sprinkler head using the cylindrical sensing electrode portion.

8(A) to 8(B) are explanatory views showing another embodiment of a charged sprinkler head using a wire mesh-shaped sensing electrode portion.

Fig. 9(A) to Fig. 9(B) are explanatory views showing another embodiment of the charged sprinkler head using the parallel plate sensing electrode portion.

Figs. 10(A) to 10(B) are explanatory views showing another embodiment of the charged sprinkler head using the needle-shaped sensing electrode portion.

Fig. 11 is an explanatory view showing an embodiment of the spray air-conditioning apparatus of the present invention.

Fig. 12 is an explanatory view showing the spray cold air region A of Fig. 1 taken.

Fig. 13(A) to Fig. 13(D) are diagrams showing an embodiment of a charged spray head using a ring-shaped sensing electrode portion.

10‧‧‧Electrical sprinkler head

12‧‧‧ pump unit

13‧‧‧Manual valve

14‧‧‧Water source

16‧‧‧Pipe

18‧‧‧Special fire sensor

20‧‧‧Linked control relay

22‧‧‧Manual operation box

24‧‧‧System Monitoring Control Panel

26‧‧‧Fire Sensor

28‧‧‧ Receiver

30‧‧‧pressure regulator

32‧‧‧Automatic on-off valve

A‧‧‧protected area

B‧‧‧protected area

F‧‧‧Fire

Claims (22)

A fire disaster prevention device includes: a charged spray head disposed in a guard zone to spray a sprayed particle of a water-based fire extinguishing agent supplied by a fire extinguishing agent supply device; and a voltage applying portion for applying a charged current to the charged spray head In the electric pressure, the electric spray head has a spray nozzle connected to a pipe for supplying the water-based fire extinguishing agent to spray the water-based fire extinguishing agent to an external spray space, and is converted into particles to be sprayed; The water-side electrode portion is disposed between the pipe and the injection nozzle by using a conductive material, and contacts the water-based fire extinguishing agent supplied to the injection nozzle; and the voltage application portion is supported by the sensing electrode portion An external electric field generated by applying the charging voltage to the water-side electrode portion is applied to a water-based fire extinguishing agent that is converted into particles during the conversion of the ejection space, and the ejection particles are charged. A fire disaster prevention device includes: a charged spray head disposed in a guard zone to spray a sprayed particle of a water-based fire extinguishing agent supplied by a fire extinguishing agent supply device; and a voltage applying portion for applying a charged current to the charged spray head Voltage, The charged sprinkler head has a spray nozzle connected to a pipe for supplying the water-based fire extinguishing agent, and sprays the water-based fire extinguishing agent to an external spray space to be converted into particles to be sprayed; and the sensing electrode portion is disposed in the spray space. The water-side electrode portion is disposed on the side of the pipe to which the injection nozzle is connected by using a conductive material, and contacts the water-based fire-extinguishing agent supplied to the injection nozzle; the voltage application portion is caused by the sensing electrode portion and the water An external electric field generated by applying the charging voltage between the side electrode portions is applied to a water-based fire extinguishing agent that is converted into particles during the conversion of the ejection space, and the ejection particles are charged. The fire disaster prevention device according to claim 1 or 2, wherein the sensing electrode portion of the charged sprinkler head is any one of a conductive metal, a conductive resin or a conductive rubber or a composite thereof The body is in the form of a ring, a cylinder, a vertical flat plate shape, a parallel plate shape, a wire shape, or a wire mesh shape. The fire disaster prevention apparatus according to claim 1 or 2, wherein the charged spray head is configured such that a voltage of the water-side electrode portion is 0 volt and grounded, and a predetermined charging voltage from the voltage applying portion is applied to the sensing electrode portion. The fire disaster prevention device according to claim 4, wherein the voltage applying unit applies a predetermined charging voltage of a direct current, an alternating current, or a pulse to the sensing electrode unit. The fire disaster prevention apparatus according to claim 4, wherein the voltage applying unit applies a predetermined voltage of not more than ±20 kV to the sensing electrode portion. For example, the fire disaster prevention device of claim 1 or 2, wherein some or all of the sensing electrodes are covered with an insulating material. For example, the fire prevention equipment according to the first or second aspect of the patent application, wherein the water-based fire extinguishing agent is water containing water, sea water, and an agent for enhancing fire-extinguishing power. A spraying method for a fire disaster prevention device is directed to applying a charged voltage to a sprayed particle of a water-based fire extinguishing agent supplied to a charged spray head disposed in a guard zone, wherein the sprayed particles are charged and sprayed, wherein the charged spray head has The injection nozzle is connected to a pipe for supplying the water-based fire extinguishing agent, and sprays the water-based fire extinguishing agent to the external spray space to be converted into particles to be sprayed; and the sensing electrode portion is disposed in the spray space; The electrode portion is disposed between the pipe and the injection nozzle by using a conductive material, or the side of the pipe connected to the injection nozzle, and contacts the water-based fire extinguishing agent supplied to the injection nozzle; the spraying method is to be borrowed An external electric field generated by applying the charging voltage between the sensing electrode portion and the water-side electrode portion is applied to a water-based fire extinguishing agent that is converted into particles during the conversion of the ejection space, and the ejection particles are charged. For example, the spraying method of the fire disaster prevention equipment of claim 9 is such that the voltage of the water-side electrode portion is 0 volt and grounded, and the foregoing feeling A predetermined charging voltage is applied to the electrode portion. For example, in the spraying method of the fire disaster prevention device of claim 10, a predetermined charging voltage of a direct current, an alternating current or a pulse is applied to the sensing electrode portion. The spraying method of the fire disaster prevention device according to claim 10, wherein a predetermined voltage of not more than ±20 kV is applied to the sensing electrode portion. A spray air-conditioning device comprising: a charged spray head disposed in a cold air object space to be sprayed with a spray water of cold air supplied by a cold air water supply device; and a voltage application portion for applying a charged current to the charged spray head In the electric current spray head, the spray nozzle is connected to a pipe for supplying the cold air water, and sprays the cold air to the external spray space to convert it into particles to be sprayed; and the induction electrode portion is disposed in the spray. The water-side electrode portion is disposed between the pipe and the spray nozzle by using a conductive material, and contacts the cold air water supplied to the spray nozzle; the voltage application portion is supported by the sensing electrode portion and the water side The external electric field generated by applying the charging voltage between the electrode portions is applied to the cooling water converted into the particles in the injection space, and the spray water is charged. A spray air-conditioning device comprising: a charged spray head disposed in a cold air object space to be sprayed with a spray water of cold air supplied by a cold air water supply device; and a voltage application portion for applying electrification to the charged spray head In the electric pressure sprayer, the spray nozzle is connected to a pipe for supplying the cold air to the outside, and sprays the cold air to the external spray space to convert it into particles to be sprayed; and the induction electrode portion is disposed in the spray. The water-side electrode portion is disposed on the side of the pipe to which the spray nozzle is connected by using a conductive material, and contacts the cold air water supplied to the spray nozzle; the voltage application portion is configured by the sensor electrode portion and the water The external electric field generated by applying the charging voltage between the side electrode portions is applied to the cooling water converted into the particles in the injection space, and the spray water is charged. The spray air-conditioning apparatus according to claim 13 or 14, wherein the sensing electrode portion of the charged spray head has any one of a conductive metal, a conductive resin or a conductive rubber or a composite thereof. The body is in the form of a ring, a cylinder, a vertical flat plate shape, a parallel plate shape, a wire shape, or a wire mesh shape. For example, in the spray air-conditioning apparatus of claim 13 or 14, wherein the aforementioned The charged spray head is configured such that the voltage of the water-side electrode portion is 0 volt and is grounded, and a predetermined charging voltage from the voltage applying portion is applied to the sensing electrode portion. The spray air-conditioning apparatus according to claim 16, wherein the voltage applying unit applies a DC voltage of between 0.3 kV and 20 kV to the sensing electrode portion. The spray air-conditioning apparatus according to claim 13 or 14, wherein the charged spray head sprays spray water having an average particle diameter of 100 μm or less. A spraying method for a spray air-conditioning apparatus is characterized in that a spray voltage of a cold air supplied to a charged spray head provided in a cold air object space is applied with a charging voltage, and the spray water is charged and sprayed, wherein the charged spray head has a spray nozzle. It is connected to a pipe for supplying the cold air water, and sprays the cold air water to the external spray space to be converted into particles to be sprayed; the induction electrode portion is disposed in the spray space; and the water side electrode portion is disposed using a conductive material. The spray pipe is supplied to the water-cooling side of the spray nozzle between the pipe and the spray nozzle, or the side of the pipe connected to the spray nozzle; and the spray method is performed by the sensor electrode portion and the water-side electrode portion. The external electric field generated by applying the above-described charging voltage is applied to the cold air water converted into the particles in the injection space, and the spray water is charged. A spray method for a spray air conditioner according to claim 19 of the patent application, In the above-described charged spray head, the voltage of the water-side electrode portion is 0 volt and grounded, and a predetermined charging voltage is applied to the sensing electrode portion. A spraying method of a spray air-conditioning apparatus according to claim 20, wherein a DC voltage of between 0.3 kV and 20 kV is applied to the aforementioned sensing electrode portion. The spraying method of the spray air-conditioning apparatus according to claim 19, wherein the charged spray head sprays spray water having an average particle diameter of 100 μm or less.