WO2009139069A1 - Assembled-type mist nozzle and fire-extinguishing equipment including the mist nozzle - Google Patents

Assembled-type mist nozzle and fire-extinguishing equipment including the mist nozzle Download PDF

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Publication number
WO2009139069A1
WO2009139069A1 PCT/JP2008/059063 JP2008059063W WO2009139069A1 WO 2009139069 A1 WO2009139069 A1 WO 2009139069A1 JP 2008059063 W JP2008059063 W JP 2008059063W WO 2009139069 A1 WO2009139069 A1 WO 2009139069A1
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WIPO (PCT)
Prior art keywords
mist
orifices
liquid
plate
mist nozzle
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Application number
PCT/JP2008/059063
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French (fr)
Japanese (ja)
Inventor
詠一 村井
清 浅井
Original Assignee
株式会社初田製作所
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Application filed by 株式会社初田製作所 filed Critical 株式会社初田製作所
Priority to PCT/JP2008/059063 priority Critical patent/WO2009139069A1/en
Publication of WO2009139069A1 publication Critical patent/WO2009139069A1/en

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis

Definitions

  • the present invention relates to a collective mist nozzle provided with a plurality of orifices, and a fire extinguishing equipment including the mist nozzle.
  • a conventional mist nozzle generally comprises an orifice member 22 fitted into a nozzle head 21 and a control member 23 fitted into the nozzle head 21 as shown in FIG.
  • the orifice member 22 has a vortex chamber 22b and a flow path 22c communicating with the orifice 22a
  • the control member 23 has a swirl groove 23a located between the vortex chamber 22b and the flow path 22c.
  • the orifice member 22 having the vortex chamber 22b and the control member 23 having the swivel groove 23a are complicated in structure as described above, they must be manufactured by cutting.
  • the nozzle manufacturing cost increases.
  • new ones with different dimensions and shapes must be cut. Therefore, in order to reduce the manufacturing cost, there is a problem that it is extremely difficult to increase the size / shape variation.
  • mist nozzles for fire extinguishing
  • the conventional mist nozzles were not sufficiently reachable and had to be sprayed near the flame, which caused great danger during fire fighting activities.
  • the present invention contributes to the improvement of the injection performance of the mist nozzle and the further improvement of the fire extinguishing effect against the flame when the mist nozzle is applied to extinguishment by solving the above technical problems.
  • One collective mist nozzle includes an orifice plate having a plurality of orifices for injecting liquid, a recess that forms a vortex chamber that communicates with each of the orifices, and the liquid described above with respect to the recess.
  • a control plate disposed so as to communicate with each of the aforementioned orifices a groove that constitutes a flow path that flows in a substantially rotating direction and a second introduction port that guides the liquid to the groove, and a second introduction thereof
  • a flow path plate having an opening serving as a liquid supply path disposed so as to communicate with the opening and a lid plate having a first introduction port for introducing the liquid into the opening are overlapped.
  • the orifice plate is formed such that the spray angles of the mist sprayed from the respective orifices described above intersect each other.
  • the above-mentioned orifice plate, control plate, flow channel plate, and lid plate can be easily manufactured individually by etching, laser processing, or punching processing.
  • Manufacture is extremely simple, and costs can be reduced.
  • the atomization performance can be easily changed simply by changing the number of control plates, the number of flow passage plates, or the shape thereof, a mist nozzle that meets the required injection conditions can be easily and inexpensively handled.
  • the injection angles of the mist injected from each of the aforementioned orifices intersect each other, the straightness or directivity of the injected mist is enhanced. As a result, the reach of the mist can be made very long.
  • another collective mist nozzle of the present invention includes an orifice plate having a plurality of orifices for injecting liquid, a concave portion constituting a vortex chamber communicating with each orifice, and the concave portion described above.
  • a control plate disposed so as to communicate with each of the aforementioned orifices a groove constituting a flow path for the liquid flowing in substantially in the direction of rotation, and a second introduction port for guiding the liquid to the groove;
  • a lid plate disposed to communicate with the second introduction port and having a first introduction port for introducing a liquid into the second introduction port is formed to overlap with each other, and the orifice plate is formed as described above.
  • the mist injection angles of the mist orifices are formed so as to intersect each other.
  • the above-described orifice plate, control plate, and lid plate can be easily manufactured individually by etching, laser processing, or punching processing, so that the manufacture of the mist nozzle as a whole is extremely simple. Therefore, the cost can be reduced. Further, for example, since the atomization performance can be easily changed simply by changing the number of control plates, the number of flow passage plates, or the shape thereof, a mist nozzle that meets the required injection conditions can be easily and inexpensively handled. Further, since the number of parts is reduced as compared with the above-described invention, the cost can be further reduced. Furthermore, since the injection angles of the mist injected from each of the aforementioned orifices intersect each other, the straightness or directivity of the injected mist is enhanced. As a result, the reach of the mist can be made very long.
  • another collective mist nozzle of the present invention includes an orifice plate having a plurality of orifices for injecting liquid, a concave portion constituting a vortex chamber communicating with each orifice, and the concave portion described above. And a control plate disposed so as to communicate with each of the aforementioned orifices a groove that constitutes a flow path for the liquid to flow substantially in the direction of rotation and a second introduction port that guides the liquid to the groove.
  • the orifice plate is formed so that the mist injection angles of the respective orifices intersect with each other.
  • the above-mentioned orifice plate and control plate can be easily manufactured individually by etching, laser processing or punching processing, so that the manufacturing of the mist nozzle as a whole becomes extremely simple, Cost can be reduced. Further, since the number of parts is reduced as compared with the above-described invention, the cost can be further reduced. Further, if this collective mist nozzle configuration is employed, mist can be injected simply by providing this configuration on a part of the wall surface of the tubular body filled with liquid. In other words, the freedom of arrangement of the mist nozzle is increased.
  • another collective mist nozzle of the present invention includes a plurality of orifices for injecting a liquid, a recess constituting a vortex chamber communicating with each of the orifices, and the abbreviation of the liquid described above with respect to the recess.
  • a control plate disposed so as to communicate with each of the orifices, a groove constituting a flow path flowing in in the rotation direction, and a second introduction port for guiding the liquid to the groove;
  • the concave portion and the lid plate that closes the groove are formed so as to overlap each other, and the orifice plate is formed so that the injection angles of the mists injected from the respective orifices intersect each other.
  • the above-described control plate can be easily manufactured individually by etching, laser processing or punching, and further, an orifice portion, a vortex chamber (concave portion), and a flow path (groove). Since the difficulty of alignment is eliminated, the manufacture of the mist nozzle as a whole becomes extremely simple and the cost can be reduced. Further, since the number of parts is reduced as compared with the above-described invention, the cost can be further reduced.
  • the “substantially rotating direction” preferably means a direction in which the flowing liquid gives an angular velocity to the liquid forming a vortex in the vortex chamber or maintains the angular velocity of the liquid.
  • an orifice plate, a control plate, a flow passage plate and optionally a lid plate constituting the collective nozzle can be easily etched or laser processed or punched individually. Can be produced. Therefore, the manufacture of the mist nozzle as a whole becomes extremely simple and the cost can be reduced. Further, for example, since the atomization performance can be easily changed by simply changing the number and shape of the control plate and the flow path plate, a mist nozzle that meets the required injection conditions can be easily and inexpensively handled.
  • FIG. 2 is a partial vertical cross-sectional view configured by overlapping each plate of FIG. 1.
  • FIG. 2 is a plan view of a single mist nozzle that is a part of FIG. 2 and viewed from the F direction (right direction). It is a top view which shows the control board of the collective mist nozzle in this embodiment.
  • FIG. 3B is a partially enlarged view of FIG. 3B. It is a figure explaining the internal diameter of each orifice, and the space
  • FIG. 4B is an enlarged view of part (B region) of FIG. 4A.
  • FIG. 5B is an enlarged view of a part (X region) of FIG. 5A.
  • FIG. 5B is a YY sectional view of FIG. 5A. It is a part (Z area) enlarged view of Drawing 5C.
  • FIG. 5D of the mist injection apparatus provided with the other collective mist nozzle in this embodiment.
  • FIG. 2 of the mist injection apparatus provided with the other collective mist nozzle in this embodiment.
  • One collective mist nozzle of the present embodiment is configured by superposing an orifice plate having a plurality of orifices, a control plate, a flow channel plate as desired, and a lid plate as desired, thereby making it easy and inexpensive.
  • Various injection conditions can be accommodated by the method.
  • one collective mist nozzle of this embodiment can be installed in a narrow space.
  • the collective mist nozzle or a tubular body provided with the collective mist nozzle in a part of the tube wall is also suitable as a fire extinguishing equipment. The following embodiments are more specific descriptions of such contents.
  • FIG. 1 is an exploded perspective view of the collective mist nozzle 100 of the present embodiment, and shows four types of plate-like bodies, that is, an orifice plate 1, a control plate 2, a flow path plate 3, and a lid plate 4.
  • 2 is a partial longitudinal sectional view configured by superimposing the respective plates of FIG. 1, and
  • FIG. 3A is a plan view taken from the F direction (right direction) of a single mist nozzle that is a part of FIG.
  • FIG. 3B is a plan view showing the control plate 2 of the collective mist nozzle 100 in the present embodiment, and
  • FIG. 3C is a partially enlarged view of FIG. 3B.
  • the orifice plate 1 has 90 orifices 1a for ejecting liquid.
  • the control plate 2 constitutes a recess 2a that constitutes a vortex chamber that communicates with the orifice 1a, and a flow channel that flows into the recess (vortex chamber) 2a toward the substantially rotating direction of the vortex formed by the liquid.
  • the groove 2b for this purpose and the second inlet 2c to the groove (flow path) 2b are arranged so as to communicate with each orifice 1a.
  • the control plate 2 is formed as an integral part in the present embodiment.
  • the flow path plate 3 has an opening 3a that is disposed so as to communicate with the second introduction port 2c and serves as a liquid supply path.
  • the lid plate 4 has a first inlet 4a for introducing a liquid into the opening 3a.
  • the material of the orifice plate 1, the control plate 2, the flow path plate 3, and the cover plate 4 of this embodiment is SUS304.
  • a plurality of vortex chambers (concave portions) 2a,..., 2a, flow paths (groove portions) 2b,. ,..., 2c, one second introduction port 2c is shared by a maximum of three adjacent flow paths 2b, 2b, 2b.
  • the line connecting the center of one vortex chamber 2a and the centers of the two vortex chambers 2a, 2a adjacent to the vortex chamber 2a is arranged to form an equilateral triangle.
  • the inner diameters of the vortex chambers 2a, ..., 2a and the second introduction ports 2c, ..., 2c are 2 mm.
  • a line connecting the center of one vortex chamber 2a and the centers of two vortex chambers 2a and 2a adjacent to the vortex chamber 2a is formed as an equilateral triangle.
  • An auxiliary line A is drawn.
  • FIG. 3D is an enlarged view of a part of the collective mist nozzle 100 of this embodiment when observed from the orifice plate 1 side in a state where the orifice plate 1 and the control plate 2 are overlapped.
  • the inner diameter (P 1 in the drawing) of each orifice 1a and the interval between the orifices (P 2 in the drawing) are shown.
  • the inner diameter (P 1 ) of each orifice 1a of this embodiment is 0.5 mm.
  • the spacing between each orifice (P 2) is 9 mm.
  • the injection angle of the mist injected from each orifice 1a is 70 °.
  • the mist ejected from the assembly mist nozzle 100 of the present embodiment overlaps at a position separated from the surface of the orifice plate 1 by 6.5 mm.
  • the orifice plate 1 is formed so that the mist injection angles from the respective orifices 1a intersect each other at a position separated from the surface of the orifice plate 1 by 6.5 mm.
  • the injection angle of the mist injected from the mist nozzle typically means the spread angle ⁇ of the flight range of the extinguishing agent injected from the mist nozzle 70 shown in FIG.
  • the mist nozzle 70 is a known mist nozzle for explaining the injection angle.
  • the mist injected from the assembly mist nozzle 100 flows in an overlapping manner, so that the straightness or directivity of the injected mist is greatly increased.
  • the mist can be made to reach a fire extinguishing target that is far away, that is, a flame.
  • the fire extinguishing equipment is free from the influence of the heat of the flame and the like, and the safety of the person engaged in fire fighting is greatly enhanced.
  • the injected mist overlap at a position away from the surface of the orifice plate 1 by more than 100 mm because the risk of losing the straightness or directivity of the mist increases.
  • the sprayed mist overlaps at a position less than 2 mm away from the surface of the orifice plate 1
  • the liquid films before the sprayed liquid is atomized, that is, before the mist is formed, overlap. Therefore, at least a part of the progress of atomization is hindered.
  • they overlap at a position less than 2 mm away from the surface of the orifice plate 1 there is an increased risk that a sufficient mist injection speed cannot be obtained.
  • the mist injection angle in order to greatly improve the straightness or directivity of the mist, it is desirable to set the mist injection angle so that the mists injected in the above range can overlap. Specifically, if the interval (P 2 ) between the orifices is 5 mm or more and 30 mm or less and the injection angle is 20 ° or more and 100 ° or less, sufficient overlap of mist in the above range is possible. Is obtained.
  • a single member (hereinafter simply referred to as “single mist nozzle”) (2a, 2b, 2c) of the mist nozzle formed in the control plate 2 is a vortex chamber as shown in FIG. 3A. Since the groove 2b which becomes three flow paths from three directions faces the concave portion 2a, the uniform angular velocity is obtained in the vortex chamber (the concave portion 2a), and the jet from the orifice 1a is stabilized. Becomes homogeneous. Moreover, in this embodiment, the flow-path cross-sectional area of the opening part 3a is doubled by stacking the two flow-path plates 3. FIG.
  • the four types of plate-like bodies 1, 2, 3, and 4 having the above-described structure can be manufactured by etching or laser processing, they can be manufactured easily and inexpensively. In particular, it greatly contributes to a reduction in initial cost during manufacturing. Moreover, since the shape or / and dimensions of the mist nozzle unit (2a, 2b, 2c) can be finely changed, it is possible to easily and inexpensively provide the mist nozzles having different states.
  • the flow of liquid when the collective mist nozzle 100 is configured as a single flat plate will be described below.
  • the liquid that has entered from the first introduction port 4a of the cover plate 4 shown in FIG. 1 passes through the second introduction port 2c of the control plate 2 via the opening 3a of the flow path plate 3, and then has an angular velocity by the groove 2b.
  • the swirling flow is provided in the recess 2a.
  • droplets are ejected as fine particles from the orifice 1 a of the orifice plate 1. Therefore, if this is installed in a narrow space, 90 mist nozzles can be disposed only in the space of the flat plate-like body.
  • the liquid similarly enters from the three second introduction ports 2c, 2c, 2c, and each groove 2b, 2b, As a result of being given angular velocity by 2b and being fed into the recess 2a, the liquid becomes a swirl flow in the recess 2a. Accordingly, in the case of 90 mist nozzles alone (2a, 2b, 2c), the liquid in the recesses 2a,. Will be injected.
  • FIGS. 4A to 4C The apparatus shown in FIGS. 4A to 4C is a mist injection apparatus 200 provided with the collective mist nozzle of this embodiment.
  • FIG. 4A is a general overview of a mist injection apparatus 200 provided with the collective mist nozzle.
  • 4B is an enlarged view of part (B region) of FIG. 4A.
  • 4C is a cross-sectional view taken along the line CC of FIG. 4A.
  • the second liquid inlet 5c, the groove 5b serving as a flow path, the recess 5a serving as a vortex chamber, and the orifice 5d are formed from a single plate-like body 5 by a known etching technique.
  • the material of the plate-shaped body 5 of this embodiment is SUS304.
  • the plate-like body 5 is a plate-like body in which the orifice 5d is formed, and another plate-like shape in which the second introduction port 5c, the groove portion 5b, and the concave portion 5a are formed.
  • the body may be bonded or bonded.
  • the plate-like body 5 on which the mist nozzles (5a, 5b, 5c, 5d) arranged in a row are formed so that the orifice 5d is outside the pipe.
  • a tubular body having a substantially rectangular cross section is formed.
  • the lid plate 7 is joined to the plate-like body 5 so as to close each of the single mist nozzles (5a, 5b, 5c, 5d) leaving a part of the second introduction port 5c.
  • the liquid inside the pipe 6 is fed from the second introduction port 5c through the groove 5b into the recess 5a serving as a vortex chamber and swirled, and then as a mist from the orifice 5d. Be injected.
  • the orifice 5d may be clogged with foreign matter, and accordingly, a wire net-like strainer 10 is appropriately disposed inside the pipe.
  • FIGS. 5A to 5D is a mist injection apparatus 300 including the collective mist nozzle of the present embodiment.
  • FIG. 5A is an overall overview diagram of a mist injection apparatus 300 provided with the collective mist nozzle.
  • FIG. 5B is an enlarged view of a part (X region) of FIG. 5A.
  • FIG. 5C is a YY sectional view of FIG. 5A.
  • FIG. 5D is an enlarged view of a part (Z region) of FIG. 5C.
  • the orifice plate 8 in which the orifice 1a is formed, the liquid second inlet 2c, the groove portion 2b serving as the flow path, and the recess portion 2a serving as the vortex chamber are formed.
  • a single mist nozzle is formed by the control plate 9 and the lid plate 7.
  • the orifice plate 8, the control plate 9, and the lid plate 7 are overlapped and bonded or joined as in the first embodiment.
  • the orifice 1a, the 2nd inlet 2c, the groove part 2b, and the recessed part 2a are formed by the well-known etching technique or laser processing similarly to 1st Embodiment.
  • the material of each plate in the present embodiment is the same as that in the first embodiment.
  • a plate-like body in which mist nozzles (2a, 2b, 2c) are arranged in four rows is bent and joined so that the orifice 1a is outside the pipe.
  • the cross section is formed into a substantially regular hexagonal tubular body.
  • the mist nozzle groups in each row are arranged on four surfaces of a tubular body having a substantially regular hexagonal cross section.
  • the lid plate 7 is joined to the control plate 9 so as to close each of the single mist nozzles (2a, 2b, 2c) leaving a part of the second introduction port 2c.
  • the liquid in the pipe interior 11 is sent from the second opening 2c via the groove 2b to the recess 2a serving as a vortex chamber and swirled, and then as a mist from the orifice 1a. Be injected.
  • the orifice 5d may be clogged with foreign matter, and accordingly, a wire net-like strainer 10 is appropriately disposed inside the pipe.
  • the tubular body is formed by bending and joining the plate-like body so that the orifice is outside the pipe as in the second and third embodiments, the preferred direction of the entire outer peripheral surface (within 360 degrees) In this way, a mist injection device having a collective mist nozzle that can be injected freely is obtained.
  • the plate-like body is configured to be curved, a collective mist nozzle that can inject freely in a desired angle direction (within 180 degrees) of the semicircular outer peripheral surface is provided.
  • a mist injection device is also obtained.
  • the mist injection device described above can be manufactured in a pipe shape or a semicircular shape by various known methods.
  • the cover plate 7 is removed as shown in FIG. 5E.
  • the inside of the pipe for example, 11 in the third embodiment
  • the lid plate 7 is not particularly required.
  • the control plate 9 is formed so as to also function as the lid plate 7.
  • the first introduction port 7a of the cover plate 7 (as shown in 4a of the first embodiment).
  • the shape and arrangement of the second introduction port 2c of the control plate 9 are arranged to communicate with each other.
  • the integrated mist nozzle in which the flow path plate 3 is removed from the collective mist nozzle 100 of the first embodiment is at least one of the effects of the present invention as long as the integrated mist nozzle is arranged along the above-described contents. Part can be exhibited.
  • FIG. 7 is a general overview of the fire extinguishing equipment 400 provided with the collective mist nozzle of the present embodiment.
  • a pipe is connected to the first inlet 4a in the cover plate 4 of the collective mist nozzle 100 of the first embodiment, and further, the pressurizing pump 31 and a liquid as a fire extinguishing agent (for example, , Water) supply source 30 is connected.
  • a fire extinguishing agent for example, Water
  • the reach of the fire extinguishing agent (water) compared to the case of the mist injection by the mist nozzle alone or the spray of the liquid that has not been made mist. was found to be about twice as long or longer. More specifically, when the fire extinguishing equipment 400 of the present embodiment is used, when the liquid pressure is 0.9 MPa, the reach distance reaches 15 m. The spray amount is 12 L / min. Therefore, it was confirmed that the amount of liquid consumed was very small compared to the injection of liquid that was not mist.
  • the dispersion state of the mist was confirmed at a position about 10 m away from the orifice plate 1.
  • the injected mist was within a circular area having a diameter of about 300 mm. I found out That is, it was found that the injected mists have high straightness or directivity by overlapping each other.
  • the dissipation of the mist is greatly reduced as compared with the normal mist, it was confirmed that the mist was hardly wasted for extinguishing the fire.
  • the fire extinguishing equipment 400 of this embodiment can be sent to a distant place in the state which maintained such an appropriate mist density, it turns out that it is a safe and useful fire extinguishing equipment. Moreover, since such a mist can fully cover the surface of the fire extinguishing target and extinguish it, it is very efficient. Moreover, since the mist formed by the fire extinguishing equipment 400 of the present embodiment can significantly reduce the impact force on the object as compared with the injection of liquid that is not mist, the object after the fire is prevented from being damaged. be able to.
  • the fire extinguishing equipment 400 of this embodiment is used, even if mist is injected from a position sufficiently away from the flame, it can sufficiently contribute to fire extinguishing activities.
  • water was used as a fire extinguisher, it is not limited to this.
  • Other alternative fire extinguishing agents that increase fire fighting capability may be applied, although the impact on the human body will increase and the environmental impact will increase.
  • the water containing as an additive at least one selected from the group of known extinguishing liquids such as alkaline strengthening liquid and neutral strengthening liquid, surfactants, and alcohols such as ethanol is used in the present embodiment and the above-mentioned It can be applied to each modification. However, from the viewpoint of safety and ease of handling, it is most preferable to use water.
  • the structure and effect at the time of extinguishing using the collective mist nozzle 100 were demonstrated, it is not limited to this.
  • the collective mist nozzle or mist injection device of other embodiments if the injected mist overlaps within the range of 2 mm to 100 mm from the surface of the orifice plate, the mist reach distance However, it grows greatly compared with the conventional one.
  • the collective mist nozzle or the mist injection device of the embodiment other than the collective mist nozzle 100 described above can also inject mist having an appropriate density.
  • the composition made to flow into a vortex chamber from three directions using three grooves 2b, 2b, and 2b as a shape of a mist nozzle simple substance (2a, 2b, 2c) is adopted, It is not limited to this.
  • the liquid may be introduced from one direction using one groove 2b or from two directions using two grooves 2b and 2b.
  • a configuration in which the gas flows into the vortex chamber from three directions is most preferable.
  • the two flow path plates 3 are overlapped to double the flow path cross-sectional area of the opening 3a.
  • the flow path plate 3 may be one, three, or more. .
  • the flow path plate 3 can be omitted if desired.
  • the number of orifices 1a of the orifice plate 1 is not limited to 90, and can be set as appropriate.
  • the collective mist nozzle of the present embodiment is based on a flat plate-like body, but it can also be formed into a tubular body by bending the plate-like body as described above, and the plate-like body can be bent into a semicircle. It is also possible to configure in a shape. Accordingly, the mist can be jetted freely in a desired direction or atomization condition in accordance with the shape of the installation target space (particularly a narrow space).
  • a tubular body can be used together as a liquid feeding tube, and is particularly effective when used in a narrow space.
  • the cross section was arrange
  • the present invention can be widely used, for example, as a mist nozzle for fire fighting, agriculture, or air purification such as dust removal and deodorization.
  • the present invention is extremely useful for fire extinguishing.

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Abstract

An assembled-type mist nozzle (100) constituted of an orifice plate (1), a control plate (2), a duct plate (3) and a lid plate (4) which are stacked. The nozzle is structured so that spray angles of the mist sprayed from respective orifices (1a) intersect with one another. This constitution can improve straightness and directivity of the sprayed mist and lengthen the spray travel of the mist.

Description

集合型ミストノズル及びそのミストノズルを備えた消火設備Collective mist nozzle and fire extinguishing equipment equipped with the mist nozzle
　本発明は、複数のオリフィスを配設した集合型ミストノズル、及びそのミストノズルを備えた消火設備に関するものである。 The present invention relates to a collective mist nozzle provided with a plurality of orifices, and a fire extinguishing equipment including the mist nozzle.
　従来のミストノズルは、一般的に図８に示すようにノズルヘッド２１に嵌め込まれるオリフィス部材２２とこれに合体するように嵌め込まれる制御部材２３とからなっている。オリフィス部材２２にはオリフィス２２ａに通じる渦室２２ｂと流路２２ｃとがあり、また制御部材２３には渦室２２ｂと流路２２ｃとの間に位置する旋回溝２３ａがある。 A conventional mist nozzle generally comprises an orifice member 22 fitted into a nozzle head 21 and a control member 23 fitted into the nozzle head 21 as shown in FIG. The orifice member 22 has a vortex chamber 22b and a flow path 22c communicating with the orifice 22a, and the control member 23 has a swirl groove 23a located between the vortex chamber 22b and the flow path 22c.
　液体は、矢印方向に従って制御部材２３の周囲から流路２２ｃに入り、旋回溝２３ａにより旋回力を与えられて渦室２２ｂ内で旋回流となり、そのままオリフィス２２ａから液滴の微粒子となって噴射される。 The liquid enters the flow path 22c from the periphery of the control member 23 in the direction of the arrow, is given a swirling force by the swirling groove 23a, becomes a swirling flow in the vortex chamber 22b, and is directly ejected as droplet fine particles from the orifice 22a. The
　しかしながら、従来のミストノズルにおいては、前記したように渦室２２ｂを有するオリフィス部材２２と旋回溝２３ａを有する制御部材２３とがそれぞれ構造が複雑なために切削加工により製作せざるを得ないため、ノズル製造コストが高くなる。また、例えば消火活動に用いた場合に、消火対象の異なるものに対応するための微粒化性能を変更する際に、寸法・形状の異なるものを新たに切削加工しなければならない。従って、製造コストを下げるためには、寸法・形状のバリエーションを増やすことが極めて困難という問題があった。 However, in the conventional mist nozzle, since the orifice member 22 having the vortex chamber 22b and the control member 23 having the swivel groove 23a are complicated in structure as described above, they must be manufactured by cutting. The nozzle manufacturing cost increases. In addition, for example, when used for fire fighting activities, when changing the atomization performance to cope with different fire extinguishing targets, new ones with different dimensions and shapes must be cut. Therefore, in order to reduce the manufacturing cost, there is a problem that it is extremely difficult to increase the size / shape variation.
　また、特に消火に対してミストノズルを活用しようとした場合、従来のミストノズルでは到達距離が十分ではなく、火炎近くで噴射しなければならなかったため、消火活動の際に大きな危険が伴った。 Also, especially when trying to use mist nozzles for fire extinguishing, the conventional mist nozzles were not sufficiently reachable and had to be sprayed near the flame, which caused great danger during fire fighting activities.
　加えて、従来のミストノズルを利用して複数のオリフィスを設けたいと思っても、このミストノズルを複数個設置するか、あるいはこのミストノズルに複数のオリフィスを設けるように加工しなければならなかった。そのため、狭い設置スペースで複雑なミスト噴射条件に対応した複数のオリフィスを有するミストノズルを製造することが困難であった。 In addition, even if you want to provide multiple orifices using a conventional mist nozzle, you have to install multiple mist nozzles or process them to provide multiple orifices. It was. Therefore, it was difficult to manufacture a mist nozzle having a plurality of orifices corresponding to complicated mist injection conditions in a narrow installation space.
　本発明は、上述の技術課題を解決することにより、ミストノズルの噴射性能の向上、及び、そのミストノズルを消火に適用した際の火炎に対する消火効果の更なる向上に貢献するものである。 The present invention contributes to the improvement of the injection performance of the mist nozzle and the further improvement of the fire extinguishing effect against the flame when the mist nozzle is applied to extinguishment by solving the above technical problems.
　本発明の１つの集合型ミストノズルは、液体を噴射するための複数のオリフィスを有するオリフィス板を備えるとともに、その各々のオリフィスに通じる渦室を構成する凹部、その凹部に対して前述の液体の略回転方向に向けて流入する流路を構成する溝、及びその液体をその溝に導く第２導入口を前述の各々のオリフィスに連通するように配設された制御板と、その第２導入口に連通するように配設されて液体の供給路となる開口部を有する流路板と、その開口部に液体を導入するための第１導入口を有する蓋板とを重ね合わせて形成され、かつそのオリフィス板が、前述の各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成されている。 One collective mist nozzle according to the present invention includes an orifice plate having a plurality of orifices for injecting liquid, a recess that forms a vortex chamber that communicates with each of the orifices, and the liquid described above with respect to the recess. A control plate disposed so as to communicate with each of the aforementioned orifices a groove that constitutes a flow path that flows in a substantially rotating direction and a second introduction port that guides the liquid to the groove, and a second introduction thereof A flow path plate having an opening serving as a liquid supply path disposed so as to communicate with the opening and a lid plate having a first introduction port for introducing the liquid into the opening are overlapped. The orifice plate is formed such that the spray angles of the mist sprayed from the respective orifices described above intersect each other.
　この集合型ミストノズルによれば、上述のオリフィス板、制御板、流路板、及び蓋板が、個別にエッチング又はレーザ加工又は打抜き加工により容易に製作できるようになるため、ミストノズル全体としての製造が極めて簡単になり、コストダウンが図れる。また、例えば、制御板や、流路板の板数又はその形状を変更するだけで微粒化性能を簡単に変更できるため、要求される噴射条件に合ったミストノズルを容易かつ安価に対応できる。さらに、前述の各々のオリフィスから噴射されるミストの噴射角度が互いに交差することにより、噴射されたミストの直進性又は指向性が高まる。その結果、ミストの到達距離を非常に長くすることができる。 According to this collective mist nozzle, the above-mentioned orifice plate, control plate, flow channel plate, and lid plate can be easily manufactured individually by etching, laser processing, or punching processing. Manufacture is extremely simple, and costs can be reduced. Further, for example, since the atomization performance can be easily changed simply by changing the number of control plates, the number of flow passage plates, or the shape thereof, a mist nozzle that meets the required injection conditions can be easily and inexpensively handled. Furthermore, since the injection angles of the mist injected from each of the aforementioned orifices intersect each other, the straightness or directivity of the injected mist is enhanced. As a result, the reach of the mist can be made very long.
　また、本発明のもう１つの集合型ミストノズルは、液体を噴射するための複数のオリフィスを有するオリフィス板を備えるとともに、その各々のオリフィスに通じる渦室を構成する凹部、その凹部に対して前述の液体の略回転方向に向けて流入する流路を構成する溝、及びその液体をその溝に導く第２導入口を前述の各々のオリフィスに連通するように配設された制御板と、その第２導入口に連通するように配設されてその第２導入口に液体を導入するための第１導入口を有する蓋板とを重ね合わせて形成され、かつそのオリフィス板が、前述の各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成されている。 In addition, another collective mist nozzle of the present invention includes an orifice plate having a plurality of orifices for injecting liquid, a concave portion constituting a vortex chamber communicating with each orifice, and the concave portion described above. A control plate disposed so as to communicate with each of the aforementioned orifices a groove constituting a flow path for the liquid flowing in substantially in the direction of rotation, and a second introduction port for guiding the liquid to the groove; A lid plate disposed to communicate with the second introduction port and having a first introduction port for introducing a liquid into the second introduction port is formed to overlap with each other, and the orifice plate is formed as described above. The mist injection angles of the mist orifices are formed so as to intersect each other.
　この集合型ミストノズルによれば、上述のオリフィス板、制御板、及び蓋板が、個別にエッチング又はレーザ加工又は打抜き加工により容易に製作できるようになるため、ミストノズル全体としての製造が極めて簡単になり、コストダウンが図れる。また、例えば、制御板や、流路板の板数又はその形状を変更するだけで微粒化性能を簡単に変更できるため、要求される噴射条件に合ったミストノズルを容易かつ安価に対応できる。また、上述の発明と比較して部品数が低減されているため、コストダウンが更に図られる。さらに、前述の各々のオリフィスから噴射されるミストの噴射角度が互いに交差することにより、噴射されたミストの直進性又は指向性が高まる。その結果、ミストの到達距離を非常に長くすることができる。 According to this collective mist nozzle, the above-described orifice plate, control plate, and lid plate can be easily manufactured individually by etching, laser processing, or punching processing, so that the manufacture of the mist nozzle as a whole is extremely simple. Therefore, the cost can be reduced. Further, for example, since the atomization performance can be easily changed simply by changing the number of control plates, the number of flow passage plates, or the shape thereof, a mist nozzle that meets the required injection conditions can be easily and inexpensively handled. Further, since the number of parts is reduced as compared with the above-described invention, the cost can be further reduced. Furthermore, since the injection angles of the mist injected from each of the aforementioned orifices intersect each other, the straightness or directivity of the injected mist is enhanced. As a result, the reach of the mist can be made very long.
　また、本発明のもう１つの集合型ミストノズルは、液体を噴射するための複数のオリフィスを有するオリフィス板を備えるとともに、その各々のオリフィスに通じる渦室を構成する凹部、その凹部に対して前述の液体の略回転方向に向けて流入する流路を構成する溝、及びその液体をその溝に導く第２導入口を前述の各々のオリフィスに連通するように配設された制御板とを重ね合わせて形成され、かつそのオリフィス板が、前述の各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成されている。 In addition, another collective mist nozzle of the present invention includes an orifice plate having a plurality of orifices for injecting liquid, a concave portion constituting a vortex chamber communicating with each orifice, and the concave portion described above. And a control plate disposed so as to communicate with each of the aforementioned orifices a groove that constitutes a flow path for the liquid to flow substantially in the direction of rotation and a second introduction port that guides the liquid to the groove. The orifice plate is formed so that the mist injection angles of the respective orifices intersect with each other.
　この集合型ミストノズルによれば、上述のオリフィス板、及び制御板が、個別にエッチング又はレーザ加工又は打抜き加工により容易に製作できるようになるため、ミストノズル全体としての製造が極めて簡単になり、コストダウンが図れる。また、上述の発明と比較して部品数が低減されているため、コストダウンが更に図られる。また、この集合型ミストノズルの構成を採用すれば、液体が満たされた管状体の壁面の一部にこの構成を備えるだけでミストを噴射することができる。換言すれば、ミストノズルの配置の自在性が高まる。 According to this collective mist nozzle, the above-mentioned orifice plate and control plate can be easily manufactured individually by etching, laser processing or punching processing, so that the manufacturing of the mist nozzle as a whole becomes extremely simple, Cost can be reduced. Further, since the number of parts is reduced as compared with the above-described invention, the cost can be further reduced. Further, if this collective mist nozzle configuration is employed, mist can be injected simply by providing this configuration on a part of the wall surface of the tubular body filled with liquid. In other words, the freedom of arrangement of the mist nozzle is increased.
　また、本発明のもう１つの集合型ミストノズルは、液体を噴射するための複数のオリフィスを備えるとともに、その各々のオリフィスに通じる渦室を構成する凹部、その凹部に対して前述の液体の略回転方向に向けて流入する流路を構成する溝、及びその液体をその溝に導く第２導入口を前述の各々のオリフィスに連通するように配設された制御板と、その各々のオリフィス、その凹部、及びその溝を塞ぐ蓋板とを重ね合わせて形成され、かつそのオリフィス板が、前述の各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成されている。 In addition, another collective mist nozzle of the present invention includes a plurality of orifices for injecting a liquid, a recess constituting a vortex chamber communicating with each of the orifices, and the abbreviation of the liquid described above with respect to the recess. A control plate disposed so as to communicate with each of the orifices, a groove constituting a flow path flowing in in the rotation direction, and a second introduction port for guiding the liquid to the groove; The concave portion and the lid plate that closes the groove are formed so as to overlap each other, and the orifice plate is formed so that the injection angles of the mists injected from the respective orifices intersect each other.
　この集合型ミストノズルによれば、上述の制御板が個別にエッチング又はレーザ加工又は打抜き加工により容易に製作できるようになり、さらにオリフィス部と、渦室（凹部）及び流路（溝）との位置合わせの困難さが解消されるため、ミストノズル全体としての製造が極めて簡単になり、コストダウンが図れる。また、上述の発明と比較して部品数が低減されているため、コストダウンが更に図られる。 According to this collective mist nozzle, the above-described control plate can be easily manufactured individually by etching, laser processing or punching, and further, an orifice portion, a vortex chamber (concave portion), and a flow path (groove). Since the difficulty of alignment is eliminated, the manufacture of the mist nozzle as a whole becomes extremely simple and the cost can be reduced. Further, since the number of parts is reduced as compared with the above-described invention, the cost can be further reduced.
　尚、本発明において、「略回転方向」は、好ましくは、流入する液体が、渦室内で渦を形成している液体に角速度を与える又はその液体の角速度を維持する方向を意味する。 In the present invention, the “substantially rotating direction” preferably means a direction in which the flowing liquid gives an angular velocity to the liquid forming a vortex in the vortex chamber or maintains the angular velocity of the liquid.
　本発明の１つの集合型ミストノズルによれば、その集合型ノズルを構成するオリフィス板、制御板と、所望により流路板及び所望により蓋板が、個別にエッチング又はレーザ加工又は打抜き加工により容易に製作できる。従って、ミストノズル全体としての製造が極めて簡単になり、コストダウンが図れる。また、例えば制御板や流路板の板数や形状を変更するだけで微粒化性能を簡単に変更できるため、要求される噴射条件に合ったミストノズルを容易かつ安価に対応できる。 According to one collective mist nozzle of the present invention, an orifice plate, a control plate, a flow passage plate and optionally a lid plate constituting the collective nozzle can be easily etched or laser processed or punched individually. Can be produced. Therefore, the manufacture of the mist nozzle as a whole becomes extremely simple and the cost can be reduced. Further, for example, since the atomization performance can be easily changed by simply changing the number and shape of the control plate and the flow path plate, a mist nozzle that meets the required injection conditions can be easily and inexpensively handled.
本実施形態における１つの集合型ミストノズルの分解斜視図である。It is a disassembled perspective view of one collective mist nozzle in this embodiment. 図１の各板を重ね合わせて構成した部分縦断面図である。FIG. 2 is a partial vertical cross-sectional view configured by overlapping each plate of FIG. 1. 図２の一部である単体のミストノズルを取り出してＦ方向（右方向）から見た平面図FIG. 2 is a plan view of a single mist nozzle that is a part of FIG. 2 and viewed from the F direction (right direction). 本実施形態における集合型ミストノズルの制御板を示す平面図である。It is a top view which shows the control board of the collective mist nozzle in this embodiment. 図３Ｂの一部拡大図である。FIG. 3B is a partially enlarged view of FIG. 3B. 各オリフィスの内径及び各オリフィス間の間隔を説明する図である。It is a figure explaining the internal diameter of each orifice, and the space | interval between each orifice. 本実施形態における集合型ミストノズルを備えたミスト噴射装置の全体概観図である。It is the whole mist injection device provided with the collective type mist nozzle in this embodiment. 図４Ａの一部（Ｂ領域）拡大図である。FIG. 4B is an enlarged view of part (B region) of FIG. 4A. 図４ＡのＣ－Ｃ断面図である。It is CC sectional drawing of FIG. 4A. 本実施形態における他の集合型ミストノズルを備えたミスト噴射装置の全体概観図である。It is the whole mist injection apparatus provided with other collective type mist nozzles in this embodiment. 図５Ａの一部（Ｘ領域）拡大図である。FIG. 5B is an enlarged view of a part (X region) of FIG. 5A. 図５ＡのＹ－Ｙ断面図である。FIG. 5B is a YY sectional view of FIG. 5A. 図５Ｃの一部（Ｚ領域）拡大図である。It is a part (Z area) enlarged view of Drawing 5C. 本実施形態における他の集合型ミストノズルを備えたミスト噴射装置の図５Ｄに相当する図である。It is a figure equivalent to FIG. 5D of the mist injection apparatus provided with the other collective mist nozzle in this embodiment. 本実施形態における他の集合型ミストノズルを備えたミスト噴射装置の図２に相当する図である。It is a figure equivalent to FIG. 2 of the mist injection apparatus provided with the other collective mist nozzle in this embodiment. 本実施形態における１つの消火設備の全体概観図である。It is a whole general view of one fire extinguishing equipment in this embodiment. 従来のミストノズルを示す縦断側面図である。It is a vertical side view which shows the conventional mist nozzle. ミストの噴出角度を説明する図である。It is a figure explaining the ejection angle of mist.
　つぎに、本発明の実施形態を、添付する図面に基づいて詳細に述べる。尚、この説明に際し、全図にわたり、特に言及がない限り、共通する部分には共通する参照符号が付されている。また、図中、本実施形態の要素は必ずしもスケール通りに示されていない。また、各図面を見やすくするために一部の符号が省略されうる。 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this description, common parts are denoted by common reference symbols throughout the drawings unless otherwise specified. In the drawings, the elements of the present embodiment are not necessarily shown to scale. In addition, some symbols may be omitted to make each drawing easier to see.
　本実施形態の１つの集合型ミストノズルは、複数のオリフィスを有するオリフィス板と、制御板と、所望により流路板と、所望により蓋板とを重ね合わせて構成することにより、容易かつ安価な方法で様々な噴射条件に対応することができる。また、本実施形態の１つの集合型ミストノズルは、狭いスペースにも設置することが可能である。さらに加えて、この集合型ミストノズル、又はこの集合型ミストノズルを管壁の一部に備えた管状体は、消火設備としても適している。以下の複数の実施形態は、かかる内容のより具体的な説明である。 One collective mist nozzle of the present embodiment is configured by superposing an orifice plate having a plurality of orifices, a control plate, a flow channel plate as desired, and a lid plate as desired, thereby making it easy and inexpensive. Various injection conditions can be accommodated by the method. Further, one collective mist nozzle of this embodiment can be installed in a narrow space. In addition, the collective mist nozzle or a tubular body provided with the collective mist nozzle in a part of the tube wall is also suitable as a fire extinguishing equipment. The following embodiments are more specific descriptions of such contents.
＜第１の実施形態＞
　図１は、本実施形態の集合型ミストノズル１００の分解斜視図であり、オリフィス板１、制御板２、流路板３、及び蓋板４の四種類の板状体を示している。図２は、図１の各板を重ね合わせて構成した部分縦断面図であり、図３Ａは、図２の一部である単体のミストノズルを取り出してＦ方向（右方向）から見た平面図である。また、図３Ｂは、本実施形態における集合型ミストノズル１００の制御板２を示す平面図であり、図３Ｃは、図３Ｂの一部拡大図である。 <First Embodiment>
FIG. 1 is an exploded perspective view of the collective mist nozzle 100 of the present embodiment, and shows four types of plate-like bodies, that is, an orifice plate 1, a control plate 2, a flow path plate 3, and a lid plate 4. 2 is a partial longitudinal sectional view configured by superimposing the respective plates of FIG. 1, and FIG. 3A is a plan view taken from the F direction (right direction) of a single mist nozzle that is a part of FIG. FIG. 3B is a plan view showing the control plate 2 of the collective mist nozzle 100 in the present embodiment, and FIG. 3C is a partially enlarged view of FIG. 3B.
　本実施形態において、オリフィス板１は、液体を噴射するための９０個のオリフィス１ａを有している。また、制御板２は、オリフィス１ａに通じる渦室を構成する凹部２ａと、その凹部（渦室）２ａ対して前述の液体が形成する渦の略回転方向に向けて流入する流路を構成するための溝２ｂと、この溝（流路）２ｂへの第２導入口２ｃとを各オリフィス１ａに連通するように配設されている。この制御板２は、本実施形態では一体物として形成されている。また、流路板３は、前述の第２導入口２ｃに連通するように配設されて液体の供給路となる開口部３ａを有している。蓋板４は、開口部３ａに液体を導入するための第１導入口４ａを有している。尚、本実施形態のオリフィス板１、制御板２、流路板３、及び蓋板４の材質は、ＳＵＳ３０４である。 In the present embodiment, the orifice plate 1 has 90 orifices 1a for ejecting liquid. Further, the control plate 2 constitutes a recess 2a that constitutes a vortex chamber that communicates with the orifice 1a, and a flow channel that flows into the recess (vortex chamber) 2a toward the substantially rotating direction of the vortex formed by the liquid. The groove 2b for this purpose and the second inlet 2c to the groove (flow path) 2b are arranged so as to communicate with each orifice 1a. The control plate 2 is formed as an integral part in the present embodiment. Further, the flow path plate 3 has an opening 3a that is disposed so as to communicate with the second introduction port 2c and serves as a liquid supply path. The lid plate 4 has a first inlet 4a for introducing a liquid into the opening 3a. In addition, the material of the orifice plate 1, the control plate 2, the flow path plate 3, and the cover plate 4 of this embodiment is SUS304.
　図３Ｂ，図３Ｃに示すように、制御板２に形成される複数の渦室（凹部）２ａ，・・・，２ａ、流路（溝部）２ｂ，・・・，２ｂ、第２導入口２ｃ，・・・，２ｃのうち、１つの第２導入口２ｃは、隣り合う最大で３つの流路２ｂ，２ｂ，２ｂによって共有されている。また、本実施形態では、１つの渦室２ａの中心と、その渦室２ａに隣り合う２つの渦室２ａ，２ａの中心とを結ぶ線が正三角形を形成するように配置されている。また、本実施形態では、渦室２ａ，・・・，２ａ、及び第２導入口２ｃ，・・・，２ｃの内径は２ｍｍである。尚、図３Ｃでは、便宜上、１つの渦室２ａの中心と、その渦室２ａに隣り合う２つの渦室２ａ，２ａの中心とを結ぶ線が正三角形を形成されている様子を示すため、補助線Ａが描かれている。 As shown in FIGS. 3B and 3C, a plurality of vortex chambers (concave portions) 2a,..., 2a, flow paths (groove portions) 2b,. ,..., 2c, one second introduction port 2c is shared by a maximum of three adjacent flow paths 2b, 2b, 2b. In the present embodiment, the line connecting the center of one vortex chamber 2a and the centers of the two vortex chambers 2a, 2a adjacent to the vortex chamber 2a is arranged to form an equilateral triangle. In the present embodiment, the inner diameters of the vortex chambers 2a, ..., 2a and the second introduction ports 2c, ..., 2c are 2 mm. In FIG. 3C, for convenience, a line connecting the center of one vortex chamber 2a and the centers of two vortex chambers 2a and 2a adjacent to the vortex chamber 2a is formed as an equilateral triangle. An auxiliary line A is drawn.
　また、図３Ｄは、オリフィス板１と制御板２が重ね合わされた状態でオリフィス板１側から観察したときの、本実施形態の集合型ミストノズル１００の一部の拡大図である。本図面には、各オリフィス１ａの内径（図中のＰ１）及び各オリフィス間の間隔（図中のＰ２）が示されている。本実施形態の各オリフィス１ａの内径（Ｐ１）は、０．５ｍｍである。また、各オリフィス間の間隔（Ｐ２）は、９ｍｍである。さらに、各オリフィス１ａから噴射されるミストの噴射角度は、７０°である。従って、本実施形態の集合体ミストノズル１００から噴射されるミストは、オリフィス板１の表面から６．５ｍｍ離れた位置において重なることになる。換言すれば、オリフィス板１は、各々のオリフィス１ａから噴射されるミストの噴射角度が、オリフィス板１の表面から６．５ｍｍ離れた位置で互いに交差するように形成されている。尚、ミストノズルから噴射されるミストの噴射角度とは、代表的には、図９に示す、ミストノズル７０から噴射される消火剤の飛行範囲の広がり角度θを意味する。尚、ミストノズル７０は、噴射角度の説明のための公知のミストノズルである。 FIG. 3D is an enlarged view of a part of the collective mist nozzle 100 of this embodiment when observed from the orifice plate 1 side in a state where the orifice plate 1 and the control plate 2 are overlapped. In the drawing, the inner diameter (P 1 in the drawing) of each orifice 1a and the interval between the orifices (P 2 in the drawing) are shown. The inner diameter (P 1 ) of each orifice 1a of this embodiment is 0.5 mm. The spacing between each orifice (P 2) is 9 mm. Furthermore, the injection angle of the mist injected from each orifice 1a is 70 °. Therefore, the mist ejected from the assembly mist nozzle 100 of the present embodiment overlaps at a position separated from the surface of the orifice plate 1 by 6.5 mm. In other words, the orifice plate 1 is formed so that the mist injection angles from the respective orifices 1a intersect each other at a position separated from the surface of the orifice plate 1 by 6.5 mm. In addition, the injection angle of the mist injected from the mist nozzle typically means the spread angle θ of the flight range of the extinguishing agent injected from the mist nozzle 70 shown in FIG. The mist nozzle 70 is a known mist nozzle for explaining the injection angle.
　上述のようにオリフィス１ａの位置とその噴射角度が設定されることにより、集合体ミストノズル１００から噴射されたミストが重なり合って流れることになるため、噴射されたミストの直進性又は指向性が大いに高まる。その結果、例えば、集合体ミストノズル１００が消火設備として用いられた場合に、遠くに離れた消火対象、つまり火炎に対してもミストを到達させることができる。これは、消火設備が火炎の熱等の影響を免れるとともに、消火に携わる人間の安全性を大きく高めることになる。なお、噴射されたミストが、オリフィス板１の表面から１００ｍｍを超えて離れた位置で重なり合うと、ミストの直進性又は指向性が失われる危険性が高まるため、好ましくない。他方、噴射されたミストが、オリフィス板１の表面から２ｍｍ未満離れた位置で重なり合うと、噴射された液体が微粒化される前、つまりミスト状になる前の液膜の状態同士が重なり合うことになるため、微粒化の進行の少なくとも一部が妨げられることになる。加えて、オリフィス板１の表面から２ｍｍ未満離れた位置で重なり合うと、ミストの十分な噴射速度が得られないという問題も生じる危険性が高まる。他方、ミストの直進性又は指向性を大きく高めるためには、上述の範囲において噴射されたミストが重なり合うがことが出来るように、ミストの噴射角度が設定されることが望ましい。具体的には、各々のオリフィス間の間隔（Ｐ２）が、５ｍｍ以上３０ｍｍ以下であり、かつ、その噴射角度が、２０°以上１００°以下であれば、上述の範囲におけるミストの十分な重なりが得られる。 By setting the position of the orifice 1a and its injection angle as described above, the mist injected from the assembly mist nozzle 100 flows in an overlapping manner, so that the straightness or directivity of the injected mist is greatly increased. Rise. As a result, for example, when the assembly mist nozzle 100 is used as a fire extinguishing facility, the mist can be made to reach a fire extinguishing target that is far away, that is, a flame. As a result, the fire extinguishing equipment is free from the influence of the heat of the flame and the like, and the safety of the person engaged in fire fighting is greatly enhanced. Note that it is not preferable that the injected mist overlap at a position away from the surface of the orifice plate 1 by more than 100 mm because the risk of losing the straightness or directivity of the mist increases. On the other hand, if the sprayed mist overlaps at a position less than 2 mm away from the surface of the orifice plate 1, the liquid films before the sprayed liquid is atomized, that is, before the mist is formed, overlap. Therefore, at least a part of the progress of atomization is hindered. In addition, if they overlap at a position less than 2 mm away from the surface of the orifice plate 1, there is an increased risk that a sufficient mist injection speed cannot be obtained. On the other hand, in order to greatly improve the straightness or directivity of the mist, it is desirable to set the mist injection angle so that the mists injected in the above range can overlap. Specifically, if the interval (P 2 ) between the orifices is 5 mm or more and 30 mm or less and the injection angle is 20 ° or more and 100 ° or less, sufficient overlap of mist in the above range is possible. Is obtained.
　ところで、上述の制御板２内に形成されたミストノズルの構成部材の単体（以下、単に、「ミストノズル単体」という）（２ａ，２ｂ，２ｃ）は、図３Ａに示すように渦室となる凹部２ａに対して三方向から３つの流路となる溝２ｂを臨ませて構成されているので、渦室（凹部２ａ）内に均一な角速度が得られて安定することによりオリフィス１ａからの噴射が均質になる。また、本実施形態では、流路板３を２枚重ねることによって開口部３ａの流路断面積が２倍になっている。 By the way, a single member (hereinafter simply referred to as “single mist nozzle”) (2a, 2b, 2c) of the mist nozzle formed in the control plate 2 is a vortex chamber as shown in FIG. 3A. Since the groove 2b which becomes three flow paths from three directions faces the concave portion 2a, the uniform angular velocity is obtained in the vortex chamber (the concave portion 2a), and the jet from the orifice 1a is stabilized. Becomes homogeneous. Moreover, in this embodiment, the flow-path cross-sectional area of the opening part 3a is doubled by stacking the two flow-path plates 3. FIG.
　上述の構造を有する四種類の板状体１，２，３，４は、全てエッチング又はレーザー加工により製作できるので、製造が簡単で安価に提供できる。特に、製造の際のイニシャルコストの低減に大きく寄与する。また、ミストノズル単体（２ａ，２ｂ，２ｃ）の形状又は／及び寸法も細かく変更できるため、噴射されるミストの状態が異なるものを容易かつ安価に提供することができる。 Since the four types of plate- like bodies 1, 2, 3, and 4 having the above-described structure can be manufactured by etching or laser processing, they can be manufactured easily and inexpensively. In particular, it greatly contributes to a reduction in initial cost during manufacturing. Moreover, since the shape or / and dimensions of the mist nozzle unit (2a, 2b, 2c) can be finely changed, it is possible to easily and inexpensively provide the mist nozzles having different states.
　ここで、図２に示すように、集合型ミストノズル１００を一枚の平らな板状体として構成した場合の液体の流れについて以下に説明する。図１に示す蓋板４の第１導入口４ａから入った液体は、流路板３の開口部３ａを経由して制御板２の第２導入口２ｃを通過した後、溝２ｂによって角速度を与えられて凹部２ａ内で旋回流となる。その後、オリフィス板１のオリフィス１ａから液滴の微粒子となって噴射される。従って、これを狭いスペースに設置すると、平板の板状体のスペースのみで９０個のミストノズルを配設できる。 Here, as shown in FIG. 2, the flow of liquid when the collective mist nozzle 100 is configured as a single flat plate will be described below. The liquid that has entered from the first introduction port 4a of the cover plate 4 shown in FIG. 1 passes through the second introduction port 2c of the control plate 2 via the opening 3a of the flow path plate 3, and then has an angular velocity by the groove 2b. The swirling flow is provided in the recess 2a. Thereafter, droplets are ejected as fine particles from the orifice 1 a of the orifice plate 1. Therefore, if this is installed in a narrow space, 90 mist nozzles can be disposed only in the space of the flat plate-like body.
　図２、及び図３Ａ乃至図３Ｃに示すミストノズル単体（２ａ，２ｂ，２ｃ）に着目すると、３つの第２導入口２ｃ，２ｃ，２ｃから同様に液体が進入し、各溝２ｂ，２ｂ，２ｂによりそれぞれ角速度が与えられて凹部２ａに送り込まれる結果、その液体が凹部２ａ内で旋回流となる。従って、９０個のミストノズル単体（２ａ，２ｂ，２ｃ）の場合も同様に、凹部２ａ，・・・，２ａ内の液体が旋回流となるため、９０個のオリフィス１ａからそれぞれ液滴の微粒子となって噴射されることになる。 Paying attention to the mist nozzle unit (2a, 2b, 2c) shown in FIG. 2 and FIGS. 3A to 3C, the liquid similarly enters from the three second introduction ports 2c, 2c, 2c, and each groove 2b, 2b, As a result of being given angular velocity by 2b and being fed into the recess 2a, the liquid becomes a swirl flow in the recess 2a. Accordingly, in the case of 90 mist nozzles alone (2a, 2b, 2c), the liquid in the recesses 2a,. Will be injected.
　本実施形態では、図１に示すように、ミストノズル群が上下の領域に二分されているため、液体の流れも上下に二分されている。従って、蓋板４の上下の各第１導入口４ａから分かれて流路板３等に液体が流入するため、集合型ミストノズル１００の上下の各領域において均等な噴射圧力を得ることができる。
＜第２の実施形態＞ In the present embodiment, as shown in FIG. 1, since the mist nozzle group is divided into upper and lower regions, the liquid flow is also divided into upper and lower portions. Therefore, since the liquid flows from the first introduction ports 4 a above and below the lid plate 4 and flows into the flow path plate 3 and the like, uniform injection pressure can be obtained in each region above and below the collective mist nozzle 100.
<Second Embodiment>
　図４Ａ乃至図４Ｃに示す装置は、本実施形態の集合型ミストノズルを備えたミスト噴射装置２００である。ここで、図４Ａは、その集合型ミストノズルを備えたミスト噴射装置２００の全体概観図である。図４Ｂは、図４Ａの一部（Ｂ領域）拡大図である。また、図４Ｃは、図４ＡのＣ－Ｃ断面図である。本実施形態では、液体の第２導入口５ｃ、流路となる溝部５ｂ、渦室となる凹部５ａ、及びオリフィス５ｄが、一枚の板状体５から公知のエッチング技術によって形成されている。尚、本実施形態の板状体５の材質は、ＳＵＳ３０４である。ここで、板状体５は、第１の実施形態のように、オリフィス５ｄが形成された板状体と、第２導入口５ｃ、溝部５ｂ、及び凹部５ａが形成されたもう１つの板状体とが接着又は接合されたものであってもよい。 The apparatus shown in FIGS. 4A to 4C is a mist injection apparatus 200 provided with the collective mist nozzle of this embodiment. Here, FIG. 4A is a general overview of a mist injection apparatus 200 provided with the collective mist nozzle. 4B is an enlarged view of part (B region) of FIG. 4A. 4C is a cross-sectional view taken along the line CC of FIG. 4A. In the present embodiment, the second liquid inlet 5c, the groove 5b serving as a flow path, the recess 5a serving as a vortex chamber, and the orifice 5d are formed from a single plate-like body 5 by a known etching technique. In addition, the material of the plate-shaped body 5 of this embodiment is SUS304. Here, as in the first embodiment, the plate-like body 5 is a plate-like body in which the orifice 5d is formed, and another plate-like shape in which the second introduction port 5c, the groove portion 5b, and the concave portion 5a are formed. The body may be bonded or bonded.
　図４Ａ乃至図４Ｃに示すように、本実施形態では、一列に並んだミストノズル（５ａ，５ｂ，５ｃ，５ｄ）が形成された板状体５は、オリフィス５ｄがパイプの外側になるように折り曲げられて接合されることにより、断面が略矩形の管状体に形成される。蓋板７は、第２導入口５ｃの一部を残してそれぞれの単体のミストノズル（５ａ，５ｂ，５ｃ，５ｄ）を塞ぐように板状体５と接合されている。この構造により、第１の実施形態と同様、パイプ内部６の液体は、第２導入口５ｃから溝部５ｂを経由して渦室となる凹部５ａに送り込まれて旋回した後、ミストとしてオリフィス５ｄから噴射される。尚、液体の清浄度が低い場合、オリフィス５ｄが異物によって塞がれるおそれがあるため、適宜、金網状のストレーナ１０がパイプ内部に配設される。
＜第３の実施形態＞ As shown in FIGS. 4A to 4C, in the present embodiment, the plate-like body 5 on which the mist nozzles (5a, 5b, 5c, 5d) arranged in a row are formed so that the orifice 5d is outside the pipe. By bending and joining, a tubular body having a substantially rectangular cross section is formed. The lid plate 7 is joined to the plate-like body 5 so as to close each of the single mist nozzles (5a, 5b, 5c, 5d) leaving a part of the second introduction port 5c. With this structure, as in the first embodiment, the liquid inside the pipe 6 is fed from the second introduction port 5c through the groove 5b into the recess 5a serving as a vortex chamber and swirled, and then as a mist from the orifice 5d. Be injected. In addition, when the cleanliness of the liquid is low, the orifice 5d may be clogged with foreign matter, and accordingly, a wire net-like strainer 10 is appropriately disposed inside the pipe.
<Third Embodiment>
　図５Ａ乃至図５Ｄに示す装置は、本実施形態の集合型ミストノズルを備えたミスト噴射装置３００である。ここで、図５Ａは、その集合型ミストノズルを備えたミスト噴射装置３００の全体概観図である。図５Ｂは、図５Ａの一部（Ｘ領域）拡大図である。また、図５Ｃは、図５ＡのＹ－Ｙ断面図である。また、図５Ｄは、図５Ｃの一部（Ｚ領域）拡大図である。 The apparatus shown in FIGS. 5A to 5D is a mist injection apparatus 300 including the collective mist nozzle of the present embodiment. Here, FIG. 5A is an overall overview diagram of a mist injection apparatus 300 provided with the collective mist nozzle. FIG. 5B is an enlarged view of a part (X region) of FIG. 5A. FIG. 5C is a YY sectional view of FIG. 5A. FIG. 5D is an enlarged view of a part (Z region) of FIG. 5C.
　図５Ａ乃至図５Ｄに示すように、本実施形態では、オリフィス１ａが形成されたオリフィス板８と、液体の第２導入口２ｃ、流路となる溝部２ｂ、及び渦室となる凹部２ａが形成された制御板９と、蓋板７によって単体のミストノズルが形成されている。オリフィス板８、制御板９、及び蓋板７は、第１の実施形態のように重ね合わされて接着又は接合されたものである。尚、オリフィス１ａ、第２導入口２ｃ、溝部２ｂ、及び凹部２ａは、第１の実施形態と同様に、公知のエッチング技術又はレーザー加工によって形成されている。また、本実施形態の各板の材質は、第１の実施形態と同じである。 As shown in FIGS. 5A to 5D, in this embodiment, the orifice plate 8 in which the orifice 1a is formed, the liquid second inlet 2c, the groove portion 2b serving as the flow path, and the recess portion 2a serving as the vortex chamber are formed. A single mist nozzle is formed by the control plate 9 and the lid plate 7. The orifice plate 8, the control plate 9, and the lid plate 7 are overlapped and bonded or joined as in the first embodiment. In addition, the orifice 1a, the 2nd inlet 2c, the groove part 2b, and the recessed part 2a are formed by the well-known etching technique or laser processing similarly to 1st Embodiment. Further, the material of each plate in the present embodiment is the same as that in the first embodiment.
　本実施形態では、図５Ｃに示すように、ミストノズル（２ａ，２ｂ，２ｃ）が４列に並んだ板状体が、オリフィス１ａがパイプの外側になるように折り曲げられて接合されることにより、断面が略正六角形の管状体に形成されている。尚、図５Ｃに示すとおり、各列のミストノズル群は、断面が略正六角形をなす管状体の４つの面に配設されている。また、蓋板７は、第２導入口２ｃの一部を残してそれぞれの単体のミストノズル（２ａ，２ｂ，２ｃ）を塞ぐように制御板９と接合されている。この構造により、第１の実施形態と同様、パイプ内部１１の液体は、第２開口部２ｃから溝部２ｂを経由して渦室となる凹部２ａに送り込まれて旋回した後、ミストとしてオリフィス１ａから噴射される。尚、液体の清浄度が低い場合、オリフィス５ｄが異物によって塞がれるおそれがあるため、適宜、金網状のストレーナ１０がパイプ内部に配設される。 In this embodiment, as shown in FIG. 5C, a plate-like body in which mist nozzles (2a, 2b, 2c) are arranged in four rows is bent and joined so that the orifice 1a is outside the pipe. The cross section is formed into a substantially regular hexagonal tubular body. As shown in FIG. 5C, the mist nozzle groups in each row are arranged on four surfaces of a tubular body having a substantially regular hexagonal cross section. Further, the lid plate 7 is joined to the control plate 9 so as to close each of the single mist nozzles (2a, 2b, 2c) leaving a part of the second introduction port 2c. With this structure, as in the first embodiment, the liquid in the pipe interior 11 is sent from the second opening 2c via the groove 2b to the recess 2a serving as a vortex chamber and swirled, and then as a mist from the orifice 1a. Be injected. In addition, when the cleanliness of the liquid is low, the orifice 5d may be clogged with foreign matter, and accordingly, a wire net-like strainer 10 is appropriately disposed inside the pipe.
　第２及び第３の実施形態のように、オリフィスをパイプの外側になるように板状体を折り曲げて接合することによって管状体に成形すれば、その全外周面の好みの方向（３６０度内において）に自在に噴射できる集合型ミストノズルを備えたミスト噴射装置が得られる。また、上述の実施形態とは別に、板状体を湾曲させて構成すれば、その半円状外周面の好みの角度の方向（１８０度内において）に自在に噴射できる集合型ミストノズルを備えたミスト噴射装置も得られる。このとき、前述のミスト噴射装置は、公知の種々の方法によってパイプ状、又は半円状に製造されうる。 If the tubular body is formed by bending and joining the plate-like body so that the orifice is outside the pipe as in the second and third embodiments, the preferred direction of the entire outer peripheral surface (within 360 degrees) In this way, a mist injection device having a collective mist nozzle that can be injected freely is obtained. In addition to the above-described embodiment, if the plate-like body is configured to be curved, a collective mist nozzle that can inject freely in a desired angle direction (within 180 degrees) of the semicircular outer peripheral surface is provided. A mist injection device is also obtained. At this time, the mist injection device described above can be manufactured in a pipe shape or a semicircular shape by various known methods.
　ところで、上記の第３の実施形態のミストノズルの代わりに、図５Ｅに示すような、蓋板７が取り除かれた構成も採用されうる。管状体（パイプ）が形成されると、そのパイプ内部（例えば、第３の実施形態における１１）が液体の流路となるため、図５Ｅのようなミストノズル（２ａ，２ｂ，２ｃ）の構成であれば、蓋板７が特に必要とされない。換言すれば、制御板９は蓋板７の機能を兼ねるように形成される。 Incidentally, instead of the mist nozzle of the third embodiment, a configuration in which the cover plate 7 is removed as shown in FIG. 5E can be adopted. When the tubular body (pipe) is formed, the inside of the pipe (for example, 11 in the third embodiment) becomes a liquid flow path, and therefore the configuration of the mist nozzles (2a, 2b, 2c) as shown in FIG. 5E. If so, the lid plate 7 is not particularly required. In other words, the control plate 9 is formed so as to also function as the lid plate 7.
　他方、機械的な強度を高めるなどの理由で制御板上に蓋板の接合を要する場合は、図６に示すように、蓋板７の第１導入口７ａ（第１の実施形態の４ａに相当）と制御板９の第２導入口２ｃの形状及び配置をそれぞれ連通するように配設される。換言すれば、第１の実施形態の集合型ミストノズル１００から流路板３が取り除かれた集積型ミストノズルであっても、前述の内容に沿って配置すれば、本発明の効果の少なくとも一部を発揮させることができる。
＜第４の実施形態＞ On the other hand, when it is necessary to join the cover plate on the control plate for reasons such as increasing the mechanical strength, as shown in FIG. 6, the first introduction port 7a of the cover plate 7 (as shown in 4a of the first embodiment). And the shape and arrangement of the second introduction port 2c of the control plate 9 are arranged to communicate with each other. In other words, even the integrated mist nozzle in which the flow path plate 3 is removed from the collective mist nozzle 100 of the first embodiment is at least one of the effects of the present invention as long as the integrated mist nozzle is arranged along the above-described contents. Part can be exhibited.
<Fourth Embodiment>
　図７は、本実施形態の集合型ミストノズルを備えた消火設備４００の全体概観図である。本実施形態の消火設備４００は、第１の実施形態の集合型ミストノズル１００の蓋板４における第１導入口４ａに配管が接続され、さらに、加圧ポンプ３１と消火剤としての液体（例えば、水）の供給源３０が接続されている。この構成により、火災が発生したときに加圧ポンプ３１によって消火剤が集合型ミストノズル１００に送り込まれ、その後、図７に示すように、消火剤は火炎４０に対してミストとして噴射される。 FIG. 7 is a general overview of the fire extinguishing equipment 400 provided with the collective mist nozzle of the present embodiment. In the fire extinguishing equipment 400 of this embodiment, a pipe is connected to the first inlet 4a in the cover plate 4 of the collective mist nozzle 100 of the first embodiment, and further, the pressurizing pump 31 and a liquid as a fire extinguishing agent (for example, , Water) supply source 30 is connected. With this configuration, when a fire occurs, a fire extinguishing agent is sent to the collective mist nozzle 100 by the pressurizing pump 31, and then the fire extinguishing agent is injected as mist to the flame 40 as shown in FIG.
　本実施形態の消火設備４００を用いてミストの噴射を行ったところ、ミストノズル単体によるミストの噴射、あるいはミスト化されていない液体の噴射の場合と比較して、消火剤（水）の到達距離が約２倍又はそれ以上長くなることが分かった。より具体的には、本実施形態の消火設備４００を用いた場合、液体の圧力が０．９ＭＰａとしたときに、その到達距離は１５ｍに達した。また、噴霧量は１２Ｌ／ｍｉｎ．であったため、消費される液体量がミストではない液体の噴射に比べて非常に少量であることも確認された。 When the mist is sprayed using the fire extinguishing equipment 400 of the present embodiment, the reach of the fire extinguishing agent (water) compared to the case of the mist injection by the mist nozzle alone or the spray of the liquid that has not been made mist. Was found to be about twice as long or longer. More specifically, when the fire extinguishing equipment 400 of the present embodiment is used, when the liquid pressure is 0.9 MPa, the reach distance reaches 15 m. The spray amount is 12 L / min. Therefore, it was confirmed that the amount of liquid consumed was very small compared to the injection of liquid that was not mist.
　また、本実施形態の消火設備４００による消火を行った際、オリフィス板１から約１０ｍ離れた位置でそのミストの分散状況を確認したところ、噴射されたミストが直径約３００ｍｍの円状領域内に納まっていることが分かった。すなわち、この噴射されたミストは、互いに重なり合うことにより、高い直進性又は指向性を備えていることが分かった。特に、本実施形態では、そのミストの散逸が通常のミストに比べて大きく低減されているため、消火に対するミストの無駄遣いが殆どされないという効果が確認された。従って、本実施形態の消火設備４００は、そのような適切なミストの密度を維持した状態で遠方まで送り込むことができるため、安全でかつ有用な消火設備であることが分かる。また、そのようなミストは消火対象の表面を十分に覆って消火することができるため、非常に効率的である。また、本実施形態の消火設備４００によって形成されたミストは、ミストではない液体の噴射と比べて対象物への衝撃力を格段に低減させることができるため、消火後の対象物の破損を防ぐことができる。 In addition, when the fire extinguishing apparatus 400 of the present embodiment was used to extinguish the fire, the dispersion state of the mist was confirmed at a position about 10 m away from the orifice plate 1. As a result, the injected mist was within a circular area having a diameter of about 300 mm. I found out That is, it was found that the injected mists have high straightness or directivity by overlapping each other. In particular, in this embodiment, since the dissipation of the mist is greatly reduced as compared with the normal mist, it was confirmed that the mist was hardly wasted for extinguishing the fire. Therefore, since the fire extinguishing equipment 400 of this embodiment can be sent to a distant place in the state which maintained such an appropriate mist density, it turns out that it is a safe and useful fire extinguishing equipment. Moreover, since such a mist can fully cover the surface of the fire extinguishing target and extinguish it, it is very efficient. Moreover, since the mist formed by the fire extinguishing equipment 400 of the present embodiment can significantly reduce the impact force on the object as compared with the injection of liquid that is not mist, the object after the fire is prevented from being damaged. be able to.
　このように、本実施形態の消火設備４００を用いれば、火炎から十分に離れた位置からミストを噴射しても十分に消火活動に貢献しうることが確認された。尚、本実施形態では、水を消火剤として用いたが、これに限定されない。人体への影響が大きくなると共に環境への負荷は増えるが、消火能力を増大させる他の代替消火剤も適用しうる。例えば、アルカリ性強化液や中性強化液等の公知の消火薬液、界面活性剤、及びエタノール等のアルコール類の群から選ばれた少なくとも一種類を添加剤として含む水は、本実施形態及び上述の各変形例に適用しうる。但し、安全性と取扱いの容易性の観点から、水を用いることが最も好ましい。 Thus, it was confirmed that if the fire extinguishing equipment 400 of this embodiment is used, even if mist is injected from a position sufficiently away from the flame, it can sufficiently contribute to fire extinguishing activities. In addition, in this embodiment, although water was used as a fire extinguisher, it is not limited to this. Other alternative fire extinguishing agents that increase fire fighting capability may be applied, although the impact on the human body will increase and the environmental impact will increase. For example, the water containing as an additive at least one selected from the group of known extinguishing liquids such as alkaline strengthening liquid and neutral strengthening liquid, surfactants, and alcohols such as ethanol is used in the present embodiment and the above-mentioned It can be applied to each modification. However, from the viewpoint of safety and ease of handling, it is most preferable to use water.
　なお、上述の実施形態では集合型ミストノズル１００を用いて消火する場合の構成及び効果を説明したが、これに限定されない。例えば、その他の実施形態の集合型ミストノズル又はミスト噴射装置を用いた場合であっても、噴射されたミストが、オリフィス板の表面から２ｍｍ以上１００ｍｍ以下の範囲で重なり合う場合は、ミストの到達距離が従来とそれと比較して大きく伸びる。また、上述の集合型ミストノズル１００以外の実施形態の集合型ミストノズル又はミスト噴射装置は、適切な密度のミストを噴射させることもできる。 In addition, in the above-mentioned embodiment, although the structure and effect at the time of extinguishing using the collective mist nozzle 100 were demonstrated, it is not limited to this. For example, even when the collective mist nozzle or mist injection device of other embodiments is used, if the injected mist overlaps within the range of 2 mm to 100 mm from the surface of the orifice plate, the mist reach distance However, it grows greatly compared with the conventional one. In addition, the collective mist nozzle or the mist injection device of the embodiment other than the collective mist nozzle 100 described above can also inject mist having an appropriate density.
　ところで、上述の各実施形態では、ミストノズル単体（２ａ，２ｂ，２ｃ）の形状として３個の溝２ｂ，２ｂ，２ｂを用いて３方向から渦室に流入させる構成が採用されているが、これに限定されない。例えば、１個の溝２ｂを用いて１方向から、あるいは、２個の溝２ｂ，２ｂを用いて２方向から液体を流入としても良い。但し、均一な角速度を得るという観点、及び複雑過ぎる構造を避ける観点から、３方向から渦室に流入させる構成が最も好ましい。 By the way, in each above-mentioned embodiment, although the composition made to flow into a vortex chamber from three directions using three grooves 2b, 2b, and 2b as a shape of a mist nozzle simple substance (2a, 2b, 2c) is adopted, It is not limited to this. For example, the liquid may be introduced from one direction using one groove 2b or from two directions using two grooves 2b and 2b. However, from the viewpoint of obtaining a uniform angular velocity and from the viewpoint of avoiding an excessively complicated structure, a configuration in which the gas flows into the vortex chamber from three directions is most preferable.
　また、上述の各実施形態では、流路板３を二枚重ねて開口部３ａの流路断面積を二倍にしたものを示したが、流路板３は一枚でも三枚でもそれ以上でも良い。 Further, in each of the above-described embodiments, the two flow path plates 3 are overlapped to double the flow path cross-sectional area of the opening 3a. However, the flow path plate 3 may be one, three, or more. .
　また、第２及び第３の実施形態のように、流路板３は所望により省略することができる。また、オリフィス板１のオリフィス１ａの数は９０個に限らず、適宜設定可能である。 Further, as in the second and third embodiments, the flow path plate 3 can be omitted if desired. The number of orifices 1a of the orifice plate 1 is not limited to 90, and can be set as appropriate.
　本実施例の集合型ミストノズルは、平らな板状体をベースとするが、以上のように板状体を折り曲げて管状体に構成することもでき、また板状体を湾曲させて半円状に構成することも可能である。従って、設置対象スペースの形状（特に狭いスペース）に自在に対応して、所望の方向又は微粒化条件で自在にミストを噴射することができる。また、特に管状体のものは、送液管としても併用できるため、狭いスペースで使用する場合に特に効果的である。また、上述の第３の実施形態では、断面が略正六角形の管状体の４つの面に配設されていたが、これに限定されない。少なくともその一面に前述の複数のミストノズルが配設されることによって、本発明の少なくとも一部の効果が発揮される。 The collective mist nozzle of the present embodiment is based on a flat plate-like body, but it can also be formed into a tubular body by bending the plate-like body as described above, and the plate-like body can be bent into a semicircle. It is also possible to configure in a shape. Accordingly, the mist can be jetted freely in a desired direction or atomization condition in accordance with the shape of the installation target space (particularly a narrow space). In particular, a tubular body can be used together as a liquid feeding tube, and is particularly effective when used in a narrow space. Moreover, in the above-mentioned 3rd Embodiment, although the cross section was arrange | positioned on four surfaces of the substantially hexagonal tubular body, it is not limited to this. By providing the above-described plurality of mist nozzles on at least one surface thereof, at least some of the effects of the present invention are exhibited.
　本発明は、例えば、消火用、農業用、又は粉塵除去や消臭等の空気清浄化用のミストノズルとして広く利用されうる。特に、本発明は、消火用として極めて有用である。 The present invention can be widely used, for example, as a mist nozzle for fire fighting, agriculture, or air purification such as dust removal and deodorization. In particular, the present invention is extremely useful for fire extinguishing.

Claims (8)

  1. 　液体を噴射するための複数のオリフィスを有するオリフィス板を備えるとともに、前記各々のオリフィスに通じる渦室を構成する凹部、前記凹部に対して前記液体の略回転方向に向けて流入する流路を構成する溝、及び前記液体を前記溝に導く第２導入口を前記各々のオリフィスに連通するように配設された制御板と、前記第２導入口に連通するように配設されて液体の供給路となる開口部を有する流路板と、前記開口部に液体を導入するための第１導入口を有する蓋板とを重ね合わせて形成され、かつ
    　前記オリフィス板が、前記各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成される
    　集合型ミストノズル。     The apparatus includes an orifice plate having a plurality of orifices for ejecting liquid, a recess that forms a vortex chamber that communicates with each of the orifices, and a flow path that flows into the recess in the direction of rotation of the liquid. A control plate disposed to communicate with each of the orifices, and a liquid supply disposed to communicate with the second introduction port. A flow path plate having an opening serving as a path and a lid plate having a first introduction port for introducing a liquid into the opening are formed to overlap each other, and the orifice plate is ejected from each orifice. A collective mist nozzle that is formed so that the spray angles of the mist to be intersected with each other.
  2. 　液体を噴射するための複数のオリフィスを有するオリフィス板を備えるとともに、前記各々のオリフィスに通じる渦室を構成する凹部、前記凹部に対して前記液体の略回転方向に向けて流入する流路を構成する溝、及び前記液体を前記溝に導く第２導入口を前記各々のオリフィスに連通するように配設された制御板と、前記第２導入口に連通するように配設されて前記第２導入口に液体を導入するための第１導入口を有する蓋板とを重ね合わせて形成され、かつ
    　前記オリフィス板が、前記各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成される
    　集合型ミストノズル。     The apparatus includes an orifice plate having a plurality of orifices for ejecting liquid, a recess that forms a vortex chamber that communicates with each of the orifices, and a flow path that flows into the recess in the direction of rotation of the liquid. A control plate arranged to communicate with each of the orifices, and a second introduction port for guiding the liquid to the groove, and a second introduction port arranged to communicate with the second introduction port. The orifice plate is formed so as to overlap with a lid plate having a first introduction port for introducing liquid into the introduction port, and the orifice plate is formed so that the mist injection angles from the respective orifices intersect each other. Collective mist nozzle.
  3. 　液体を噴射するための複数のオリフィスを有するオリフィス板を備えるとともに、前記各々のオリフィスに通じる渦室を構成する凹部、前記凹部に対して前記液体の略回転方向に向けて流入する流路を構成する溝、及び前記液体を前記溝に導く第２導入口を前記各々のオリフィスに連通するように配設された制御板とを重ね合わせて形成され、かつ
    　前記オリフィス板が、前記各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成される
    　集合型ミストノズル。     The apparatus includes an orifice plate having a plurality of orifices for ejecting liquid, a recess that forms a vortex chamber that communicates with each of the orifices, and a flow path that flows into the recess in the direction of rotation of the liquid. And a control plate disposed so as to communicate with each of the orifices, and a second introduction port for guiding the liquid to the groove, and the orifice plate is formed from each of the orifices. A collective mist nozzle formed so that the spray angles of the mist sprayed intersect each other.
  4. 　液体を噴射するための複数のオリフィスを備えるとともに、前記各々のオリフィスに通じる渦室を構成する凹部、前記凹部に対して前記液体の略回転方向に向けて流入する流路を構成する溝、及び前記液体を前記溝に導く第２導入口が前記各々のオリフィスに連通するように配設された制御板と、前記各々のオリフィス、前記凹部、及び前記溝を塞ぐ蓋板とを重ね合わせて形成され、かつ
    　前記オリフィス板が、前記各々のオリフィスから噴射されるミストの噴射角度が互いに交差するように形成される
    　集合型ミストノズル。     A plurality of orifices for injecting liquid, and a recess that forms a vortex chamber that communicates with each of the orifices, a groove that forms a flow path for the liquid to flow in the substantially rotating direction, and A control plate arranged so that a second introduction port for guiding the liquid to the groove communicates with each of the orifices, and each of the orifices, the recesses, and a lid plate closing the groove are formed to overlap each other. And the orifice plate is formed such that the injection angles of the mist injected from the respective orifices intersect each other.
  5. 　前記オリフィス板からの距離が、２ｍｍ以上１００ｍｍ以下の範囲内で前記噴射角度が互いに交差する
    　請求項１乃至請求項４のいずれかに記載の集合型ミストノズル。     The collective mist nozzle according to any one of claims 1 to 4, wherein the injection angles intersect with each other within a range of 2 mm to 100 mm from the orifice plate.
  6. 　前記各々のオリフィス間の間隔が、５ｍｍ以上３０ｍｍ以下であり、前記噴射角度が、２０°以上１００°以下である
    　請求項１乃至請求項４のいずれかに記載の集合型ミストノズル。     The collective mist nozzle according to any one of claims 1 to 4, wherein an interval between each of the orifices is 5 mm or more and 30 mm or less, and the injection angle is 20 ° or more and 100 ° or less.
  7. 　前記各々のオリフィスが外部に面するように請求項１乃至請求項４のいずれかに記載の集合型ミストノズルを備えた
    　消火設備。     The fire extinguishing equipment provided with the collective mist nozzle according to any one of claims 1 to 4, wherein each of the orifices faces the outside.
  8. 　オリフィスが外部に面するように請求項１乃至請求項４のいずれかに記載の集合型ミストノズルを管壁の少なくとも一部に備えた管状体内に液体を流すことによって、前記オリフィスからミストが噴射されるように配設されたミスト噴射装置を備えた
    　消火設備。     The mist is ejected from the orifice by flowing a liquid into a tubular body provided with the collective mist nozzle according to any one of claims 1 to 4 at least a part of the tube wall so that the orifice faces the outside. Fire extinguishing equipment equipped with a mist injection device arranged as described above.
PCT/JP2008/059063 2008-05-16 2008-05-16 Assembled-type mist nozzle and fire-extinguishing equipment including the mist nozzle WO2009139069A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2487430A (en) * 2011-01-22 2012-07-25 Applied Energy Products Ltd A shower head wherein water exiting one outlet impinges on the flow from another outlet
RU2536200C1 (en) * 2013-12-27 2014-12-20 Олег Савельевич Кочетов Kochetov's baffle for atomisers
WO2020131460A1 (en) * 2018-12-19 2020-06-25 L'oreal Adjustable misting arrays

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61185449U (en) * 1985-05-13 1986-11-19
US5860602A (en) * 1996-12-06 1999-01-19 Tilton; Charles L Laminated array of pressure swirl atomizers
US20040135006A1 (en) * 1999-11-30 2004-07-15 Dan Mamtirim Liquid atomizer
WO2008059984A1 (en) * 2006-11-17 2008-05-22 Hatsuta Seisakusho Co., Ltd. Collective mist nozzle and fire extinguishing facility equipped with that mist nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61185449U (en) * 1985-05-13 1986-11-19
US5860602A (en) * 1996-12-06 1999-01-19 Tilton; Charles L Laminated array of pressure swirl atomizers
US20040135006A1 (en) * 1999-11-30 2004-07-15 Dan Mamtirim Liquid atomizer
WO2008059984A1 (en) * 2006-11-17 2008-05-22 Hatsuta Seisakusho Co., Ltd. Collective mist nozzle and fire extinguishing facility equipped with that mist nozzle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2487430A (en) * 2011-01-22 2012-07-25 Applied Energy Products Ltd A shower head wherein water exiting one outlet impinges on the flow from another outlet
GB2487430B (en) * 2011-01-22 2017-01-18 Applied Energy Products Ltd Shower head with sprayed vortex water distribution
RU2536200C1 (en) * 2013-12-27 2014-12-20 Олег Савельевич Кочетов Kochetov's baffle for atomisers
WO2020131460A1 (en) * 2018-12-19 2020-06-25 L'oreal Adjustable misting arrays
US10933203B2 (en) 2018-12-19 2021-03-02 L'oreal Adjustable misting arrays

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