WO2009139069A1 - Buse d’atomisation de brume du type assemblé et extincteur comprenant la buse d’atomisation de brume - Google Patents

Buse d’atomisation de brume du type assemblé et extincteur comprenant la buse d’atomisation de brume 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
Prior art date
Application number
PCT/JP2008/059063
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English (en)
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/fr
Publication of WO2009139069A1 publication Critical patent/WO2009139069A1/fr

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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

L’invention concerne une buse d’atomisation de brume du type assemblé (100) constituée d’une plaque perforée (1), d’une plaque de commande (2), d’une plaque cannelée (3) et d’une plaque- couvercle (4) empilées. La buse est structurée de sorte que les angles de pulvérisation de la brume pulvérisée depuis les orifices respectifs (1a) se croisent les uns avec les autres. Cette constitution peut améliorer la linéarité et la directivité de la brume pulvérisée et allonger sa trajectoire d’atomisation.
PCT/JP2008/059063 2008-05-16 2008-05-16 Buse d’atomisation de brume du type assemblé et extincteur comprenant la buse d’atomisation de brume WO2009139069A1 (fr)

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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 (ru) * 2013-12-27 2014-12-20 Олег Савельевич Кочетов Отбойник кочетова для форсунок
WO2020131460A1 (fr) * 2018-12-19 2020-06-25 L'oreal Ensembles brumisateurs réglables

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JPS61185449U (fr) * 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 (fr) * 2006-11-17 2008-05-22 Hatsuta Seisakusho Co., Ltd. Buse à brouillard d'eau collective et système d'extinction d'incendie équipé de cette buse à brouillard d'eau

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JPS61185449U (fr) * 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 (fr) * 2006-11-17 2008-05-22 Hatsuta Seisakusho Co., Ltd. Buse à brouillard d'eau collective et système d'extinction d'incendie équipé de cette buse à brouillard d'eau

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 (ru) * 2013-12-27 2014-12-20 Олег Савельевич Кочетов Отбойник кочетова для форсунок
WO2020131460A1 (fr) * 2018-12-19 2020-06-25 L'oreal Ensembles brumisateurs réglables
US10933203B2 (en) 2018-12-19 2021-03-02 L'oreal Adjustable misting arrays

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