JP5922363B2 - Liquid spray device and charging spray head - Google Patents

Description

The present invention relates to a liquid spraying apparatus and a charge spraying head for charging and spraying an aqueous liquid agent containing water, seawater, a chemical solution, and the like from a head .

  Conventionally, as cooling equipment that can be applied to open spaces and various usage spaces where people pass, spray cooling that pressurizes and supplies finely sprayed water to the spraying head and sprays finely sprayed water, and cools the space by the vaporization heat of finely sprayed water Equipment is known (Patent Document 1).

  In such a spray cooling system, when the fine spray water sprayed from the spray head evaporates in the space, the temperature of the air is lowered by taking away the latent heat of vaporization, and some fine spray water is directly on the human skin. It is assumed that a refreshing feeling is given by instantly evaporating on the skin and taking away the heat of vaporization.

  In addition, by charging the spray water using a charging spray head, the amount of adhesion to human skin is increased by the Coulomb force, and the refreshing feeling is enhanced (Patent Document 2). In particular, by negatively charging the spray water from the charging spray head, it is possible to create a state similar to the Leonard effect, which is said to occur in a so-called natural waterfall, and to increase the refreshing feeling. .

  FIG. 16 shows a conventional charging spray head. In FIG. 16, the charging spray head 200 has a head main body 236 screwed and fixed to the tip of a falling pipe 234 connected to the pipe from the pump unit, and an inner side of the tip of the head main body 236 is cylindrical via an insulating member 241. The water side electrode part (liquid agent side electrode part) 240 is incorporated.

  An earth cable 250 drawn from a voltage application unit (not shown) is connected to the water side electrode part 240 through an insulating member 243, and the water side electrode part 240 is dropped to the earth side.

  An injection nozzle 238 is provided below the water-side electrode portion 240, and includes a nozzle rotor 238a provided inside the water-side electrode portion 240 and a nozzle head 238b provided on the tip side. The injection nozzle 238 receives the pressurized liquid agent from the falling pipe 234, converts the liquid agent into a swirling flow by the nozzle rotor 238a, and then sprays the liquid agent into the particle group flow by spraying the liquid from the nozzle head 238b to the outside. To do.

  A cover 242 made of an insulating material is fixed to the injection nozzle 238 with a screw through a fixing member 243, and a ring-shaped induction electrode portion 244 is incorporated into an opening on the lower side of the cover 242 to stop the cover. It is fixed by screwing the ring. The ring-shaped induction electrode portion 244 forms an opening through which the spray particles from the spray nozzle 238 pass at the center of the ring-shaped main body. An electrode application cable 248 from the voltage application unit is connected to the ring-shaped induction electrode unit 244.

  When water is sprayed from the charging spray head 200, the water-side electrode portion 240 is set to the ground side at 0 volts, and the ring-shaped induction electrode portion 244 is, for example, about several KV to several tens KV in direct current, alternating current, or pulse shape. 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 electrode through the injection process in which the liquid agent is converted into a particle group flow from the injection nozzle 238 under the action of the external electric field. Charged, charged and charged particle swarms can be sprayed onto the external target area (protective compartment).

  On the other hand, in the field of pesticide spraying, an electrostatic pesticide spraying method has been proposed as a method for solving the problem that pesticide spraying is easily affected by wind and the adhesion efficiency to crops is extremely low. The charging efficiency is improved by charging (Patent Document 3).

  Also in the field of plant growth, the water clusters are divided and supplied to the growing compartments such as greenhouses by forming fine water droplets that are negatively charged, and the air in the growing compartment is negatively charged. The growth is favorably affected (Patent Document 4).

  Furthermore, in the field of air conditioners, nano-sized droplets with a negative charge are formed and discharged into the air in the air-conditioning compartment, causing dust floating in the air to agglomerate and fall to the floor. To purify the air (Patent Document 5).

  Thus, the method of charging and spraying an aqueous liquid agent from the head is used in various fields.

JP 2006-149294 A JP 2009-103335 A JP-A-8-275709 JP 2008-104364 A JP 2006-288453 A

  According to the charge spraying of the liquid agent by such a conventional charged spray head, for example, when the liquid agent is water, for example, the amount of water required for spray cooling can be greatly reduced compared to the required amount of water by the uncharged spray head. . However, when the scale for spray cooling is large, the amount of water required by the charged spray head is considerably smaller than that required by the non-charged spray head, but the minimum amount of heat generated can be absorbed at least. It is necessary to spray the amount of water to obtain the total specific heat and the latent heat of vaporization. If the amount of water is insufficient, the desired cooling effect cannot be obtained. Thus, when the scale for spray cooling is large, a charged spray head with a large amount of water is naturally required.

  However, in the conventional charged spray head 200 shown in FIG. 16, the water flow is rotated by the nozzle rotator 238a of the head body 236 and sprayed from the spray nozzle 238 using centrifugal force, thereby causing the particle group flow. In this conventional charged spray, the charge amount per unit amount of water decreases as the spray amount increases, and the fire extinguishing and smoke eliminating effect by coulomb force is enhanced. The problem that the action is reduced has been confirmed by experiments of the present inventors.

  FIG. 17 shows the average charge amount per unit spray amount of charged spray water when the charging voltage applied to the conventional charge spray head 200 shown in FIG. 16 is +5 KV as a specific charge measured by the Faraday cage method. As the spray amount increases (the head becomes larger), the specific charge indicating the average charge amount is smaller.

  Further, in the charged spray head 200 that sprays and radiates the spray from the spray nozzle 238 by applying rotation to the conventional water flow, the spray angle (spreading angle) of the liquid agent is at most about 90 °, and the flight distance is also compared. Therefore, there is a problem that the charged liquid agent cannot be sprayed over a wide range.

  Such a problem occurs in the same manner when the scale of the target section is increased when the charged spray head shown in FIG. 16 is used in the charged spray for agricultural chemicals, the charged spray for growing plants, and the charged spray for air conditioning.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid spraying device and a charging spray head that can secure a sufficient charge amount even when the spray amount increases and exhibit a charging spray effect such as adhesion using Coulomb force.

Another object of the present invention is to provide a liquid spraying apparatus and a charging spray head that spray a liquid with a large charge amount uniformly over a wide range.

(Liquid spray device )
The present invention
A liquid supply facility for supplying an aqueous liquid via a pipe;
A charging spray head that is installed in the spraying section and charges and sprays the spray particles of the liquid agent supplied by the liquid agent supply facility;
A voltage application unit for applying a charging voltage to the charging spray head;
In a liquid spraying device comprising:
The charging spray head is
A nozzle for injecting the liquid agent into the external space;
A liquid agent side electrode portion disposed inside the nozzle and in contact with the liquid agent;
A first deflecting spray member that sprays a part of the liquid agent that has exited 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 spray member that sprays the remainder of the liquid agent that has exited from the nozzle by splitting and splitting into a particle group flow after forming a second thin film flow that is positioned outside the first thin film flow 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;
And spraying the particle swarm in a double conical shape,
The voltage application unit sets the voltage of the liquid agent side electrode unit to a predetermined reference value, and the same voltage is applied to the first induction electrode unit and the second induction electrode unit as a charging voltage. .

Here, the nozzle has, in its rear around the central nozzle bore to form a ring-shaped nozzle hole coaxially,
The first deflecting spray member is a first deflector having a conical shape or a pyramid shape that deflects the liquid agent discharged from the central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
A 2nd deflection | deviation spraying member is a 2nd deflector which has a cone shape which deflects the liquid agent discharge | released from the ring-shaped nozzle hole of the nozzle to the conical surface thin film flow.

(Charging spray head )
The present invention
In the charging spray head that is installed in the spraying section and sprays the spray particles of the liquid agent supplied by the liquid agent supply facility by charging with the application of the charging voltage from the voltage application unit,
A nozzle for injecting the liquid agent into the external space;
A liquid agent side electrode portion disposed inside the nozzle and in contact with the liquid agent;
A first deflecting spray member that sprays a part of the liquid agent that has exited 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 spray member that sprays the remainder of the liquid agent that has exited from the nozzle by splitting and splitting into a particle group flow after forming a second thin film flow that is positioned outside the first thin film flow 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;
And spraying the particle swarm in a double conical shape,
The voltage application unit sets the voltage of the liquid agent side electrode unit to a predetermined reference value, and applies the same predetermined voltage to the first induction electrode unit and the second induction electrode unit as a charging voltage.

Here, the nozzle is coaxially formed with a central nozzle hole and a ring-shaped nozzle hole around its back,
The first deflecting spray member is a first deflector having a conical shape or a pyramid shape that deflects the liquid agent discharged from the central nozzle hole of the nozzle into a conical or pyramidal thin film flow,
A 2nd deflection | deviation spraying member is a 2nd deflector which has a cone shape which deflects the liquid agent discharge | released from the ring-shaped nozzle hole of the nozzle to the conical surface thin film flow .

  According to the present invention, a splitting unit that forms a thin film flow that spreads in a predetermined direction by a deflector that serves as a deflecting spray member from an aqueous liquid agent ejected from a nozzle of a charging spray head and that converts the thin film flow into a particle group flow. By disposing an induction electrode in the vicinity and applying an external electric field for charging, a charged spray with a large charge amount can be performed while the head has a large spray amount.

  In addition, by setting the deflection shape of the deflection spray member that deflects the liquid sprayed from the nozzle into a thin film flow in an arbitrary predetermined direction, a wide-angle charged spray can be easily realized compared to the conventional case, coupled with an increase in the amount of water spray. A sufficient flight distance can be obtained, and a charging spray effect such as high adhesion utilizing Coulomb force can be obtained by spraying the charging liquid agent over a wide range.

According to another aspect of the present invention, a thin film flow that spreads in an arbitrary predetermined direction is formed by a deflector coaxially arranged in two stages that serves as a deflecting spray member for the liquid sprayed from the nozzle of the charging spray head. By placing an induction electrode near the splitting part where the particle is converted into a particle swarm and applying an external electric field to charge it, the particle swirl that has a double cone shape (spray cone shape) is sprayed over a wide area. Charge spray with a large charge amount can be performed.

Explanatory drawing which showed embodiment of the spray cooling equipment provided with the liquid agent spraying apparatus by this invention Explanatory drawing which took out and showed the spray cooling division of FIG. Sectional drawing which showed embodiment of the charging spray head by this invention Explanatory drawing which looked at the charging spray head of FIG. 2 from the lower side A graph showing the relationship between the spray amount and specific charge according to the present embodiment in comparison with a conventional head The time chart which showed the applied voltage supplied to the electrification spray head of this embodiment Sectional drawing which showed other embodiment of the charging spray head by this invention. Explanatory drawing which looked at the electrification spray head of FIG. 7 from the lower side in the ceiling installation state Explanatory drawing which showed embodiment of the spraying dustproof equipment by this invention Explanatory drawing which showed embodiment of the agricultural chemical spraying and plant breeding equipment by this invention Explanatory drawing which showed embodiment of the liquid agent spraying equipment which sprays the chemical | medical agent liquid mixture by this invention Explanatory drawing which showed other embodiment which uses a handy type liquid medicine spraying device by connecting with a hose to the spray cooling section of FIG. Sectional drawing which showed embodiment of the handy type charging spray head of FIG. Explanatory drawing which showed other embodiment of the liquid agent spraying apparatus by this invention used as a backpack type power sprayer Explanatory drawing which showed other embodiment of the liquid agent spraying apparatus by this invention used as a power spraying cart. Sectional view showing a conventional electrostatic spray head A graph showing the relationship between the amount of spray and the specific charge with a conventional charging spray head

  FIG. 1 is an explanatory view showing an embodiment of a liquid spraying device (liquid spraying facility) according to the present invention provided as a spray cooling device (spray cooling facility). In FIG. 1, spray cooling sections A and B are cooling target spaces such as an open space through which a person passes, and are positioned above the spray cooling sections 24a and 24b, for example, at a height that does not hinder human traffic. The charged spray head 10 according to the embodiment is installed, and the water spray for cooling is sprayed from the charged spray heads 24a and 24b to the spray sections.

  A pipe 16 is connected to the charging spray head 10 from the discharge side of a pump unit 12 installed as a cooling water supply facility via a manual valve (gate valve) 14 and a remote on-off valve 22c. It connects to the charging spray head 10 installed in each of the spray cooling compartments 24a and 24b via the remote on-off valves 22a and 22b.

  An environmental sensor 18a is installed in each of the spray cooling sections 24a and 24b, and is connected to the system control panel 20a by a signal line. The environmental sensor 18a measures the temperature, humidity, rainfall, wind speed, etc. in the spray cooling compartments 24a, 24b and transmits them to the system control panel 20a.

  Remote open / close valves 22a to 22d are further connected to the system control panel 20a through signal lines, and can be controlled remotely. While the spray cooling equipment is stopped, the system control panel 20 closes the remote on-off valves 22a to 22c and opens the remote control valve 22d.

  Further, the system control panel 20a closes the drain-side remote control valve 22d and opens the remote control valves 22a to 22c and activates the pump unit 12 to start the cooling water in the charging spray head 10 when spray cooling is started. Is supplied under pressure.

  FIG. 2 is an explanatory view showing the spray cooling section 24a of FIG. The charging spray head 10 is installed at a high position of the spray cooling section 24a. A pipe 16 from the pump unit 12 shown in FIG. 1 is connected to the charging spray head 10 via a remote on-off valve 22a.

  In addition, a voltage application unit 15 is installed on the upper part of the charging spray head 10, and as will be clarified later, a spray applied from the charging spray head 10 by applying a predetermined voltage to the charging spray head 10. The water is charged so that it can be sprayed.

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

  In FIG. 3 and FIG. 4, the charging and spraying 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 water side electrode portion (liquid agent side electrode portion) 46 is incorporated in the internal flow path of the bodies 36 and 38. The water-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 water-side electrode portion 46 is connected to a ground cable 54 drawn from the voltage application portion 15 installed at the upper portion. The water-side electrode portion 46 is grounded by the connection of the ground cable 54.

  A nozzle portion 40 is formed at the front end of the internal flow path of the body 38 disposed at the lower portion via an insulating spacer 43. A deflector 42 that functions as a deflection spray unit is disposed on the ejection side of the nozzle unit 40. The deflector 42 is provided at the tip of a rod 45 extending from a deflector support portion 44 that is assembled and fixed via an insulating member 43 following the water-side electrode portion 46 in the body 38, and is a space in front of the nozzle portion 40 (downward in the drawing). Are arranged opposite to each other.

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

  A cylindrical frame 50 opened to the lower portion of the body 38 is assembled and fixed by bolts 37. The opening end of the frame 50 is positioned below the split separation part P, that is, on the spray space side, and an annular induction electrode part 48 is disposed on the inner peripheral surface near the split 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 sprayed liquid agent.

  A 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 in a region that is, for example, 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. .

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

  When spraying the liquid agent from the charging spray head 10, the voltage application unit 15 shown in FIG. 2 is operated by a control signal from the interlock control relay device 20 shown in FIG. For example, a DC, AC, or pulsed applied voltage of about several KV to several tens of KV is applied to the induction electrode unit 48. According to the inventor's experiment, the applied voltage is preferably in a range not exceeding 20 KV, but is not limited thereto.

  Thus, when a voltage of, for example, several KV is applied between the water-side electrode portion 46 and the induction electrode portion 48, an external electric field is generated by the application of this voltage, and the liquid sprayed from the nozzle portion 40 is conical in the deflector 42. The sprayed particles are charged through an injection process in which the thin film flow 56 is formed along the surface and the thin film flow 56 starts splitting and separating from the vicinity of the splitting separation part P and converted into the particle group flow 58, and the charged jetting particles are sprayed to the outside. be able to.

  In addition, when the liquid agent sprayed from the nozzle unit 40 is deflected by the deflector 42, a part of the liquid agent may come into contact with the induction electrode unit 48 due to peeling or scattering, but the induction electrode unit 48 is covered with an insulating material. Therefore, the liquid agent can be charged without causing short circuit or charge neutralization due to contact with the liquid agent.

  FIG. 5 is a graph schematically showing an example in which the relationship between the spray amount and specific charge under a certain condition is compared between the charged spray head according to the present embodiment provided with a deflector and the conventional head not provided with a deflector. .

  In FIG. 5, a characteristic B is a characteristic of a conventional charging spray head, and is a case where a steady charging voltage is ignited. As the spray amount per unit time increases, the specific charge indicating the charge amount greatly decreases. On the other hand, in the charged spray head 10 of the present embodiment, the spray amount is, for example, as shown in the characteristic A. 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 amount of 7 [liter / min] is the specific charge (point a of the characteristic A) of 1.5 [liter / min]. The level corresponds to the point B of the characteristic B).

  As described above, according to the charging spray head 10 of the present embodiment, the problem that the charge amount per unit water amount greatly decreases with the increase in the spray amount in the conventional charging spray head is solved, and charging is performed with high efficiency. Therefore, it is possible to perform spraying with a large charge amount while the charging spray head has a large spray amount.

  Further, since the liquid sprayed from the nozzle unit 40 is sprayed by the deflector 42 after being converted into the particle stream 58 through the thin film stream 56, the apex angle θ of the deflector 42 is appropriately set, so that the liquid agent sprayed from the nozzle unit 40 can be compared with the conventional charged spray head. Wide-angle charging spray can be easily realized, and the amount of water spray can be increased while suppressing charging loss, so that a sufficient flight distance can be obtained, and the charging agent can be sprayed over a wide area to obtain a high charging spray effect such as adhesion efficiency. be able to.

  Next, the monitoring operation in the embodiment of FIG. 1 will be described. When the system control panel 20 determines that the cooling start time set by, for example, a timer has been reached, it closes the drain-side remote on-off valve 22d, opens the remote on-off valves 22a-22c, and activates the pump unit 12. Cooling water is drawn from the water source, pumped and pressurized, and the cooling water is supplied to the pipe 16.

  In addition to the time setting by the timer, the activation by the system monitoring panel 20 is performed based on measurement data such as temperature, humidity, rainfall, wind speed, etc. from the manual operation by the administrator and the environmental sensor 18 installed in the spray cooling compartments 24a and 24b. It may be automatic activation when the activation condition is obtained.

  The system control panel 20 sends an activation signal to the voltage application unit 15 provided in the vicinity of the charging spray head 10 shown in FIG. 2 together with the pressurized supply of cooling water by the activation of the pump unit 20, and receives this activation signal. The voltage application unit 15 supplies a DC application voltage of, for example, several kilovolts to the charging spray head 10.

  For this reason, in the charging spray head 10 shown in FIG. 3, the cooling water sprayed from the nozzle unit 40 is deflected by the deflector 42 to form the thin film flow 56, and then split into the particle group flow 58 and sprayed. At this time, for example, a voltage of several kilovolts is applied in a predetermined pattern to the induction electrode portion 48 connected to the voltage application cable 52 with the water-side electrode portion 46 connected to the ground cable 54 as a reference potential (ground). An external electric field generated by applying a voltage can be applied to the particle group flow 58 that has started splitting and passing through the induction electrode portion 44, and the sprayed particles can be charged and sprayed.

  As shown in FIG. 2, since the water particles sprayed from the charging spray head 10 toward the spray cooling section 24a are charged in this way, the water particles are charged in the section by the Coulomb force due to charging. A high refreshing feeling can be obtained by efficiently adhering to the skin of a passing person and taking away the heat of vaporization when adhering to the skin and evaporating.

  Further, in the charging spray head 10 of FIG. 3, for example, when the water-side electrode portion 40 is set to 0 volts and a positive DC voltage is applied to the ring-shaped induction electrode portion 44, the sprayed water particles are minus. Only the electric charge is charged. In this way, when spraying water particles charged only to a negative charge, repulsive force works between the charged water particles in the space, thereby reducing the probability that the water particles collide and grow and fall. The density of water particles staying in the space is increased, and the apparent specific gravity of the air mixed with the spray water is increased from that when not charged, and the cooling effect is increased by suppressing the tendency to dissipate upward.

  Further, by negatively charging the spray water from the charging spray head 10, it is possible to create a state similar to the Leonard effect that is said to occur in a so-called natural waterfall, and to increase the refreshing feeling. it can.

  FIG. 6 is a time chart showing an applied voltage applied to the charging spray head 10 from the voltage application unit 15 of the present embodiment.

  FIG. 6A shows a case where a DC voltage of + V is applied. In this case, negatively charged water particles are continuously sprayed.

  FIG. 6B shows a case where a DC voltage of −V is applied. In this case, positively charged water particles are continuously sprayed.

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

  FIG. 6D shows a case where a pulsed voltage of + V is repeatedly applied at predetermined intervals. In this case, a period in which negatively charged water particles are intermittently sprayed and no voltage is applied. In this case, the water particles are uncharged.

  FIG. 6E shows a case where a pulsed voltage of −V is repeatedly applied at a predetermined interval. In this case, positively charged water particles are intermittently sprayed and no voltage is applied. During the period, it becomes a spray of uncharged water particles.

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

  The application period and the inversion period in the applied voltage pattern illustrated in FIGS. 6C to 6F can be determined as appropriate, and the odd and odd numbers of the patterns in FIGS. 6A to 6F are combined. It can also be rubbed with a pattern.

  As the voltage application unit 15 that supplies the application voltage of each pattern illustrated in FIG. 6 to the charging spray 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 charging spray head according to the present invention, and shows a longitudinal section thereof. FIG. 8 is an explanatory view of the charging spray head of FIG. 7 viewed from the lower side (floor side) in the ceiling installation state. The charging spray head of this embodiment is characterized in that the liquid agent particle group flow is charged and sprayed in a double cone shape (double cone shape) for spraying over a wide range.

  7 and 8, the charging spray 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 water side (liquid agent side) electrode portion 46 is incorporated in the internal flow path of the bodies 36 and 38. The water-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. Further, an insulating spacer 43 is disposed below the water side electrode portion 46.

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

  A nozzle portion 70 is formed at the tip of the internal flow path of the body 38 disposed at the lower portion. As shown in FIG. 7, the nozzle unit 70 of the present embodiment includes a first deflector 42-1 as a first deflecting spray member in a space on the tip side of the rod 45 extending from the deflector support unit 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 spray deflecting member in the space on the front end side behind the first deflector 42-1. 2 is arranged. Note that. 43 is an insulating member.

The second deflector 42-2 has a shape in which a nozzle hole is formed at the center and the tip outer peripheral side is widened in a conical shape, and the rod 45 is inserted into the center nozzle hole. A gap between the nozzle hole and the rod 45 in the insertion portion forms a first nozzle portion 40-1 that discharges the liquid toward the first deflector 42-1.

  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 second gap 40-2 that discharges the liquid agent toward the second deflector 42-2 is formed by the gap in the shape.

  In the present embodiment, the first deflector 42-1 is a conical body having a predetermined apex angle θ1, and deflects the liquid agent ejected from the first nozzle part 40-1 along the conical surface, so that the thin film flow Convert to 56-1 and radiate. 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 emitted as the first particle group flow 58-1, and is schematically shown as a spray pattern 60-. Sprayed as in 1.

  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, and has a ring-shaped gap. The liquid agent ejected from the second nozzle part 40-2 having the above is deflected at a wide angle along the conical surface, converted into a thin film flow 56-2 and radiated. The thin film flow 56-2 formed by the second deflector 42-2 is split and separated from the vicinity of the splitting portion P2 and emitted as the second particle group flow 58-2, and the spray pattern 60- schematically illustrated is shown. 2, the spray pattern is sprayed at a wide angle so as to cover the outside of the spray pattern 60-2 by the first deflector 40-1, thereby uniformly covering a wide area of a double cone shape (double cone shape). Form.

  A cylindrical frame 50 opened to the lower side of the body 38 is assembled and fixed by bolts 37. The opening 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 spray 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.

  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 portion P1 of the thin film flow 56-1 deflected by the first deflector 40-1, that is, on the spray space side. An annular first induction electrode portion 48-1 is arranged on the inner peripheral surface in the vicinity.

  The first induction electrode portion 48-1 and the second induction electrode 48-2 are formed of a conductive member and coated with an insulating material, and are electrically connected to the metal frames 50 and 74 and the sprayed liquid agent. Is 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 48-2 arranged in the frames 50 and 74. .

  In addition, the first induction electrode part 48-1 and the second induction electrode 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, 30 mm or less downstream, It arrange | positions in the area | region which is 20 mm or less from the surface of the thin film flows 56-1, 56-2.

  Here, as the water side electrode portion 46, the first induction electrode portion 48-1, and the second induction electrode portion 48-2 used in the charging spray head 10 of the present embodiment, in addition to the conductive metal, It may be a resin having conductivity, a fiber bundle, rubber, or the like, or a composite obtained by combining these.

  When spraying the liquid agent from the charging spray head 10 shown in FIGS. 7 and 8, the voltage application unit 15 shown in FIG. 2 is operated by the control signal from the system control panel 20a shown in FIG. Is applied to the first induction electrode portion 48-1 and the second induction electrode 48-2 with a DC, AC, or pulsed applied voltage of, for example, about several KV to several tens of KV. 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 is predetermined between the water-side electrode portion 46 and the first induction electrode portion 48-1 and the second induction electrode portion 48-2 with respect to the reference potential (ground) of the water-side electrode portion 46. An external electric field is generated by applying this voltage, and the liquid agent injected from the first nozzle part 40-1 and the second nozzle part 40-2 is conical in the first deflector 42-1 and the second deflector 42-2. The thin film flows 56-1 and 56-2 along the plane are formed, and the thin film flow 56-1.56-2 starts to split and separate from the vicinity of the splitting separation parts P 1 and P 2, and the first particle group flow 58-1 and the second particle group The spray particles of the liquid agent are charged through the spraying process converted into the flow 58-2, and the charged spray particles are charged and sprayed as a double-cone (double cone) pattern that uniformly covers a wide area outside. Can do.

  FIG. 9 is an explanatory view showing an embodiment of the spray dustproof equipment according to the present invention. In FIG. 9, the spray dust-proof section 24 c is a work facility where dust is generated, and the charged spray head 10 according to the present embodiment is installed above the spray dust-proof section 24 c, for example, at a height that does not hinder the work. ing.

  For the charging spray head 10, piping from the discharge side of the pump unit 12 that pressurizes and supplies water from the water source water tank 11 installed as a liquid agent supply facility via a manual valve (gate valve) 14 and a remote opening / closing valve 22 c. 16 is connected, and the pipe 16 is connected to the charging spray head 10 installed in the spray dust-proof section 24c via the remote opening / closing valve 22a. The charging spray head 10 uses the one shown in the embodiment of FIG. 3 or FIG.

  An environmental sensor 18b is installed in the spray dustproof section 24c, and is connected to the system control panel 20b by a signal line. The environmental sensor 18b measures the dust concentration in the spray dustproof section 24c and transmits it to the system control panel 20b.

  Remote on / off valves 22a, 22c, and 22d are further connected to the system control panel 20b through signal lines, so that the on / off control can be performed remotely. The system control panel 20b keeps the remote on-off valves 22a and 22c closed and the remote control valve 22d open while the spray dustproof equipment is stopped.

  Further, the system control panel 20a closes the drain-side remote control valve 22d and opens the remote control valves 22a and 22c and activates the pump unit 12 to activate water from the water source water tank 11 when the spray dustproof system is activated. Is pressurized and supplied to the charging spray head 10 to cause the spray protection section 24a to be charged and sprayed.

  When charged water (liquid agent) particles are charged and sprayed from the spray spray head 10 to the spray dust-proof section 24c, dust particles that are also charged are collected by the Coulomb force of the water particles being charged and sprayed to the floor surface quickly. This is a great dustproof effect.

  FIG. 10 is an explanatory view showing an embodiment of the pesticide spraying and plant growing facility according to the present invention. In FIG. 10, a pesticide spraying / plant growing section 24d is a facility such as a greenhouse for growing plants, and the present embodiment is positioned above the pesticide spraying / plant growing section 24d, for example, at a height that does not hinder work. The charging spray head 10 is installed. The charging spray head 10 uses the one shown in the embodiment of FIG. 3 or FIG.

  The suction side of the pump unit 12 is connected to the pesticide tank 26 and the water source water tank 11 via remote on-off valves 22e and 22f, and supplies the pesticide from the pesticide tank 26 or water from the water source water tank 11 under pressure from the pump unit 12. The discharge side of the pump unit 12 is connected to a pipe 16 via a manual valve (gate valve) 14 and a remote on-off valve 22c, and the pipe 16 is charged on the agrochemical spray and plant growing section 24d via a remote on-off valve 22a. Connected to the spray head 10.

  An environmental sensor 18c is installed in the pesticide spraying and plant growing section 24d, and is connected to the system control panel 20b by a signal line. The environmental sensor 18b measures the temperature, humidity, and the like in the pesticide spraying / plant-growing section 24d and transmits them to the system control panel 20c.

  Remote on / off valves 22a and 22c to 22f are further connected to the system control panel 20c through signal lines so that the on / off control can be performed remotely. When the equipment is stopped, the system control panel 20c closes the remote on-off valves 22a, 22c, 22e, and 22f and opens the remote control valve 22d.

  When pesticide spraying is performed, the system control panel 20a controls the drain side remote control valve 22d to be closed, and also opens the remote control valves 22a, 22c, and 22f while keeping the remote control valve 22e closed. 12 is started, and the pesticide liquid from the pesticide tank 26 is pressurized and supplied to the charging spray head 10 to be sprayed to the pesticide spraying / plant growing section 24d.

  When the agrochemical liquid particles are sprayed from the electrification spray head 10 to the agrochemical spray / plant growth section 24d, the agrochemical liquid particles are charged, and thus are efficiently attached to the plant being grown by the Coulomb force due to charging. In addition, the wraparound effect causes adhesion to all surfaces, such as the backside of plant leaves, and the adhesion effect to the combustion agent is greatly increased compared to the case of spraying uncharged water particles as in the past, resulting in high adhesion efficiency. It is done.

  In addition, when the pesticide spray is not performed, plant growth control is performed, and the system control panel 20a controls the drain side remote control valve 22d to close and also opens the remote control valves 22a, 22c and 22e to the pump unit. 12 is started, and water from the water source water tank 11 is pressurized and supplied to the charging spray head 10 and sprayed to the agrochemical spray / plant growing section 24d.

  When the pesticide spray particles are sprayed from the electrostatic spray head 10 to the pesticide spraying / plant-growing section 24d, the pesticide liquid particles are negatively charged, so that it is the same as the Leonard effect that is said to occur in the so-called natural waterfall. Can produce a positive state and can have a positive effect on plant growth.

  The pesticide spraying and the growth water spraying by the system control panel 20c may be automatically performed by timer control or the like. In the embodiment of FIG. 10, the pesticide spraying / plant growing facility is used, but the pesticide spraying facility in which only the pesticide tank 26 is provided on the suction side of the pump unit 12 or only the water source water tank 11 is provided on the suction side of the pump unit 12. It is good also as plant growth equipment. Furthermore, the charged spray for plant growth can be applied not only to plant growth but also to plant cultivation, rooting, storage and the like.

  FIG. 11 is an explanatory view showing another embodiment of the liquid spraying equipment according to the present invention, which is characterized in that a desired chemical is mixed and sprayed in water.

  In FIG. 11, a liquid spraying section 24e is an appropriate section, for example, an air conditioning section, and is located above the spraying dustproof section 24e, for example, at a height that does not hinder human movement. Is installed. The charging spray head 10 uses the one shown in the embodiment of FIG. 3 or FIG.

  A pump unit 12 that pressurizes and supplies water from the water source water tank 11 is installed for the charging spray head 10 and is connected to the discharge side of the pump unit 12 via a manual valve (gate valve) 14 and a remote on-off valve 22c. 16 is connected, and the charging spraying head 10 installed in the liquid spraying section 24e is connected to the pipe 16 via a remote on-off valve 22a.

  A pipe 30 between the manual valve 14 and the remote open / close valve 22 c is provided with a mixer 30, and a chemical tank 28 is connected to the mixer 30. An appropriate chemical solution is stored in the chemical solution tank 28, and the chemical solution stored in the tank partitioned by the diaphragm by the introduction of pressurized water from the pipe 16 is extruded into the mixer 30 so that a predetermined mixing ratio is obtained. It is mixed with the water pressurized and supplied from the pump unit 12 and supplied to the charging spray head 10.

  The chemical liquid in the chemical tank 28 to be mixed by the mixer 30 is, for example, a deodorant, and the liquid mixed with the deodorant is supplied to the charging spray head 10 and charged and sprayed onto the liquid spraying section 24e so that it floats in the air. Construct deodorization equipment that adsorbs and deodorizes particles that cause odors.

  An environmental sensor 18d is installed in the medicine spray section 24e, and is connected to the system control panel 20d by a signal line. The environmental sensor 18d measures, for example, the ammonia concentration in the chemical spray section 24d and transmits it to the system control panel 20d.

  Remote on / off valves 22a, 22c, and 22d are further connected to the system control panel 20d through signal lines so that the on / off control can be performed remotely. The system control panel 20d keeps the remote on-off valves 22a and 22c closed and the remote control valve 22d open while the liquid spraying equipment is stopped.

  The system control panel 20d closes the drain-side remote control valve 22d and opens the remote control valves 22a and 22c and activates the pump unit 12 to activate water from the water source water tank 11 when the liquid spray equipment is activated. Further, a medicine such as a deodorant supplied from the medicine tank 28 by the mixer 30 is mixed at a predetermined ratio, and pressurized and supplied to the charging spray head 10 to be charged and sprayed to the liquid spray section 24d.

  When the charged water particles containing the deodorant are sprayed from the charging spray head 10 onto the liquid agent spraying section 24d, particles such as ammonia that are also charged are collected by the Coulomb force of the charged water particles. It quickly descends to a great deodorizing effect. Further, by mixing the deodorant and the fragrance with water and spraying the mixture, the deodorant and a pleasant odor can be generated and the clean feeling can be enhanced.

  FIG. 12 is an explanatory view showing another embodiment of the liquid agent spraying equipment according to the present invention in which a handy type nozzle device is connected to the spray cooling section of FIG. 2 by using a hose.

  In FIG. 12, the charging spray head 10 is installed at a high position of the spray cooling section 24a, and the piping 16 from the pump unit 12 shown in FIG. 1 is connected to the charging spray head 10 via the remote opening / closing valve 22a. It is connected. A voltage application unit 15 is installed above the charging spray head 10, and a predetermined voltage is applied to the charging spray head 10 so that spray water sprayed from the charging spray head 10 can be charged and sprayed. .

The pipe 16 is lowered to the lower part of the wall surface of the spray cooling section 24 a, and a hose connection port 76 is provided there through a gate valve 75. The nozzle device 100 is connected to the hose connection port 76 via a hose 78. The nozzle device 100 incorporates a charging spray head and a voltage application device so that cooling water sprayed from the nozzle device 100 can be charged and sprayed.

  FIG. 13 is a cross-sectional view showing an embodiment of the nozzle device of FIG. In FIG. 13, the nozzle device 100 is provided with a charging spray head 10 on the distal end side of a cylindrical main body 114 made of conductive metal disposed inside a main body 102, a hose connection port 106 on the base side, and a hose connection port 106. As shown in FIG. 12, a hose 76 is connected via a gate valve 75, and cooling water is pressurized and supplied from the charging spray head 10.

  The charging spray head 10 provided at the front end of the main body 102 has a structure similar to that shown in FIG. 3 and includes metal bodies 36 and 38 divided into left and right. The body 38 extends through an inlet 36a, and flows. The inlet 36a is connected and fixed by a bolt 37 in a state where the inlet 36a is inserted at the tip of the cylinder body 114. A cylindrical water-side electrode part (liquid-agent-side electrode part) 46 is incorporated in the internal flow path of the bodies 36, 38, and the water-side electrode part 46 is made of a conductive metal material and further covered with an insulating material. It is electrically insulated from the metal bodies 36, 38.

  A nozzle portion 40 is formed at the tip of the internal flow path of the body 38 via an insulating spacer 43, and a deflector 42 is disposed on the ejection side of the nozzle portion 40. The deflector 42 is provided at the tip of a rod 45 extending from the deflector support portion 44, and is disposed opposite to the space in front of the nozzle portion 40.

  A cylindrical frame 50 that opens forward and has a plurality of intake holes 116 opened around it is assembled and fixed to the body 38 by bolts 37. The frame 50 has a front opening end positioned on the spray space side, and an annular induction electrode portion 48 is disposed on the inner peripheral surface of the tip. 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 sprayed liquid agent.

  The deflector 42 deflects the liquid from the nozzle portion 40 along the conical surface, converts it into a thin film flow 56, and radiates (sprays) it. The thin film flow 56 formed by the deflector 42 is sprayed as a particle group flow 58 by splitting and separating the thin film flow 56 from the vicinity of the induction electrode portion 48.

A frame 110 having a grip 108 is provided integrally with the main body 102, and a voltage application switch 124 is provided on the grip 108 side of the frame 110 for charging and emitting ejected particles. The main body 102 and the frame 110 are made of an insulating material such as synthetic resin.

  A battery 118 and a voltage application device 120 are incorporated in the grip portion 108 of the frame 110. The battery 118 supplies DC power to the voltage application device 120. The voltage application device 120 is connected to the induction electrode portion 48 provided in the charging spray head 10 by the induction electrode wiring 122, and is connected to the water side electrode portion 46 by the water side electrode wiring 124. Further, the voltage application switch 112 provided at a position where the finger of the grip portion 108 is hooked is connected by wiring.

  When the voltage application switch 112 is turned on, the voltage application device 120 sets the water-side electrode portion 46 to the ground side, and applies an applied voltage that is a direct current, an alternating current, or a pulse shape of about several KV to several tens KV with respect to the induction electrode portion 48. Apply. Thus, when a voltage of, for example, several KV is applied between the water-side electrode portion 46 and the induction electrode portion 48, an external electric field is generated by the application of this voltage, and the liquid sprayed from the nozzle portion 40 is conical in the deflector 42. When the thin film flow 56 passes through the vicinity of the induction electrode portion 48, the sprayed particles are charged through the spraying process in which splitting separation is started and converted into the particle group flow 58. Can be sprayed outside.

  The nozzle device 100 shown in FIG. 13 is an example in which the charging spray head 10 shown in FIG. 3 is provided at the tip of the nozzle. Should be provided.

  Further, the handy type nozzle device 100 shown in FIG. 12 can be similarly applied to the spray dust-proof section 24c of FIG. 9, the agrochemical spray / plant growth section 24d of FIG. 10, and the liquid spray section 24e.

  FIG. 14 is an explanatory view showing another embodiment of the liquid agent spraying device according to the present invention used as a backpack type power sprayer. FIG. 14 (A) shows the back surface, and FIG. 14 (B) shows the side surface. ing.

  In FIG. 14, the power sprayer 130 has a pedestal 132 disposed at the lower part of the back support part 134 to which the back band 136 is attached, and a tank 138 having a lid 140 made of polyethylene or the like disposed at the upper part of the back support part 134. In this case, a liquid agent such as cooling water to be sprayed is stored.

  The gantry 132 is equipped with an engine 142 as a driving source and a pump 144 that is driven by the engine 142 and pressurizes and supplies the liquid agent in the tank 138. The nozzle device 152 is connected to the hose connection port 148 of the pump 144 via the hose 150. Connected.

  In the nozzle device 152, a hose 150 from the pump 144 is connected to the base side of the main body 154 via a cock valve 155, and the charging spray head 10 is attached to the tip of the main body 154. A grip 156 is formed on the base side of the main body 154, and a voltage application switch 158 is provided there. The details of the nozzle device 152 are the same as those in the embodiment of FIG. 13, and are different in that the main body 154 extends forward and the charging spray head 10 is attached to the tip thereof.

  According to the liquid spray device of the present invention configured as such a power sprayer 130, an operator wears the power sprayer 130, goes to the work place, starts the engine 142, and pumps the liquid in the tank 138 from the pump 144. When the pressure is supplied to the nozzle device 152 and sprayed, the cock valve 155 provided in the nozzle device 152 is opened to supply and spray the pressurized liquid agent to the charging spray head 10. In this case, the voltage application switch When the switch 158 is turned on, an applied voltage of, for example, about several KV to several tens of KV is applied to the charging spray head 10 in the form of direct current, alternating current, or pulse, and the sprayed charged particles can be sprayed to the outside.

  FIG. 15 is an explanatory view showing another embodiment of the liquid spraying device according to the present invention used as a power spray cart. In FIG. 15, a power spraying carriage 160 has a tank 162 having a lid 170 made of polyethylene or the like mounted on a carriage 162 that can be moved by wheels 164 to store a liquid agent such as cooling water.

  The carriage 162 is equipped with an engine 172 as a driving source, and a pump 174 that is driven by the engine 172 and pressurizes and supplies the liquid agent in the tank 168. Is connected. The carriage 162 is manually moved by an operator with a hand handle 165.

  In the nozzle device 182, a hose 180 from the pump 174 is connected to the base side of the main body 184 via a cock valve 185, and the charging spray head 10 is attached to the tip of the main body 184. A grip 186 is formed on the base side of the main body 184, and a voltage application switch 188 is provided there. The details of the nozzle device 182 are the same as those in the embodiment of FIG. 13, and are different in that the main body 184 extends forward and the charging spray head 10 is attached to the tip thereof.

  According to the liquid spray device of the present invention configured as such a movable power spray cart 160, the operator pushes the cart 162 to go to the work place, starts the engine 172, and adds the liquid solution in the tank 168 from the pump 174. When the pressure is supplied to the nozzle device 182 and sprayed, the cock valve 185 provided in the nozzle device 182 is opened to supply and spray the pressurized liquid to the charging spray head 10, and in this case, the voltage application switch 188. When the operation is turned on, an applied voltage having a direct current, an alternating current, or a pulse shape of, for example, about several KV to several tens of KV is applied to the charging spray head 10, and the charged spray particles can be sprayed to the outside.

  Here, the nozzle devices 152 and 182 in FIG. 14 and FIG. 15 take the case where the charging spray head 10 in FIG. 3 is provided at the tip of the nozzle as an example, but FIG. A charged spray head 10 having a structure may be provided.

  Moreover, although the power sprayer 130 of FIG. 14 and the power spray cart 160 of FIG. 15 are provided with the engine 142 as a drive source, you may make it drive a pump by mounting a battery and a motor as a drive source. 14 may be a pressure accumulation type sprayer that compresses air by manual operation and pressurizes and supplies a liquid agent in a tank as a driving source, and is not necessarily a backpack type and is carried by hand. It is good also as a possible handy type sprayer. Further, the power spray cart in FIG. 15 may be a self-propelled type using an engine or a motor as a drive source.

  In addition, as the charging spray head 10 used in the present embodiment, it is possible to ensure a spray 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.

  Further, in the above-described embodiment, the annular electrodes are used as the induction electrode portions 48, 48-1, and 48-2, but each shape 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.

  Moreover, the applied voltage pattern to the charging spray head is set so that the induction electrode side is alternately plus or minus applied voltage with respect to the water side electrode part, or only plus voltage is applied, or only minus voltage is applied. Whether to apply a direct current or a pulse, or to apply an alternating current that changes in a sinusoidal shape, for example, whether it is a spray target, a spray target region, various other conditions, situations, or changes thereof It can be appropriately determined according to the above.

  In the above embodiment, the reference voltage (potential) is shown as, for example, a ground (ground) voltage. However, the reference voltage is not limited to this, and the plus or minus of the voltage is a concept indicating the level of the reference voltage.

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 also 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.

  The charging spray head and the charging spray method of the present invention can be used in various ways other than those shown in the above embodiments.

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

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

10: Charge spray head 11: Water source water tank 12: Pump unit 14: Manual valve 15: Voltage application unit 16: Piping 18a-18d: Environmental sensors 20a-20d: System control panels 22a-22f: Remote on-off valves 24a, 24b: Spray Air-conditioning section 24c: Spray dust-proof section 24d: Pesticide spraying and plant breeding section 24e: Liquid spray section 26: Pesticide tank 28: Chemical tank 30: Mixer 34: Falling pipe 36, 38: Body 40, 70: Nozzle section 42: Deflector 42-1: 1st deflector 42-2: 2nd deflector 43: Insulating members 44, 44-1, 44-2: Deflector support part 45: Rod 46: Water side electrode part 48: Induction electrode part 48-1: 1st induction electrode part 48-2: 2nd induction electrode part 50, 74: Frame 52: Voltage application cable 54: Earth cable 55: Cable Luda 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: spray pattern 60-1: first spray pattern 60- 2: Second spray pattern P, P1, P2: Splitting separation part 75: Gate valves 76, 106, 148, 178: Hose connection ports 78, 150, 180: Hose 100, 152, 182: Nozzle devices 102, 154, 184 : Main body 108, 156, 186: Grip part 110: Frame 112, 158, 188: Voltage application switch 114: Tube main body 116: Intake hole 118: Battery 120: Voltage application device 130: Power sprayer 132: Stand 134: Back support 136 : Carrying band 138, 168: Tank 142, 172: Engine 144, 174: Pump 160: Power spray truck 162: Car 164: Wheel 165: Push handle

Claims (4)

A liquid supply facility for supplying an aqueous liquid via a pipe;
A charged spraying head that is installed in a spraying section and charges and sprays the spray particles of the liquid agent supplied by the liquid agent supply facility;
A voltage applying unit for applying a charging voltage to the charging spray head;
In a liquid spraying device comprising:
The charging spray head is
A nozzle for injecting the liquid into an external space;
A liquid agent side electrode portion disposed inside the nozzle and in contact with the liquid agent;
A first deflecting spray member that sprays a part of the liquid agent exiting from the nozzle after being deflected in an arbitrary direction to form a first thin film flow, and then split and separate 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 deflecting spray member that sprays the remainder of the liquid solution that has exited from the nozzle, after forming a second thin film flow that is located outside the first thin film flow and deflects in the same direction, and then splits and separates into a particle group flow; ,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
And spraying the particle swarm in a double conical shape,
The voltage application unit sets a voltage of the liquid agent side electrode unit as a predetermined reference value, and applies a predetermined same voltage to the first induction electrode unit and the second induction electrode unit as the charging voltage. A liquid spraying device.
In the liquid spraying apparatus according to claim 1 ,
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 a liquid 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 conical shape that deflects the liquid discharged from the ring-shaped nozzle hole of the nozzle into a conical surface thin film flow.
A liquid spraying device characterized by the above.
In the charging spray head that is installed in the spraying section and sprays the spray particles of the liquid agent supplied by the liquid agent supply facility by charging with the application of the charging voltage from the voltage application unit,
A nozzle for injecting the liquid into an external space;
A liquid agent side electrode portion disposed inside the nozzle and in contact with the liquid agent;
A first deflecting spray member that sprays a part of the liquid agent exiting from the nozzle after being deflected in an arbitrary direction to form a first thin film flow, and then split and separate 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 deflecting spray member that sprays the remainder of the liquid solution that has exited from the nozzle, after forming a second thin film flow that is located outside the first thin film flow and deflects in the same direction, and then splits and separates into a particle group flow; ,
A second induction electrode portion disposed in the vicinity of the splitting separation portion of the second thin film flow;
And spraying the particle swarm in a double conical shape,
The voltage application unit sets the voltage of the liquid agent side electrode unit to a predetermined reference value, and the predetermined same voltage is applied to the first induction electrode unit and the second induction electrode unit as the charging voltage. Charging spray head characterized by.
In the charging spray head according to claim 3 ,
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 a liquid 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 that deflects the liquid agent discharged from the ring-shaped nozzle hole of the nozzle into a conical or pyramidal thin film flow.
A charging spray head characterized by that.

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