JP2018143311A - Foam maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam maker facilitating cleaning of a foaming mesh and check of the inside of the foam maker by simplifying the structure of the foaming mesh, simplifying the structure of entire facilities, and yet reducing the cost.SOLUTION: A foam maker 1 constituting a part of each of high-expansion foam fire-extinguishing devices installed at prescribed sections S1, S2, S3, and S4, includes: a flat plate-like foaming mesh 3 that is detachably or openably/closably attached to a cylindrical structure 2 having a flow path of air to be supplied to the prescribed sections S1, S2, S3, and S4; and an emission nozzle 4 disposed inside the cylindrical structure 2 for emitting a foaming agent toward the foaming mesh 3. The foaming mesh 3 is so attached as to cover a tip opening portion of a rising wall part 2b projecting outward or inward the cylindrical structure 2 from a peripheral edge of a lateral wall opening 2a formed at a lateral wall of the cylindrical structure 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foamer used in a high expansion foam fire extinguisher.

  For example, a high expansion foam fire extinguishing apparatus is known as a fire extinguishing apparatus installed in a storage space such as a cargo space (car hold) of an automobile carrier. The high expansion foam fire extinguishing device releases a mixed solution (foaming agent) containing surfactant and water (fresh water or seawater) from the radiation nozzle toward the foam mesh, and air taken from outside the ship through the air duct. By supplying the foamed mesh, for example, foam foamed to about 700 to 1000 times the volume of the mixed solution is generated, and the combustion flame is wrapped with the foam and extinguished by the suffocation effect.

  High-expansion foam extinguishing devices are being used frequently as fire extinguishing devices for fires in ship cargo spaces, engine rooms, and the like because they are safer and more environmentally friendly than fire extinguishing devices using halogen gas or CO 2 gas.

  And, as a foamer used in such a high expansion foam fire extinguishing apparatus, conventionally, provided with a frustoconical foam mesh provided near the tip of the ventilation duct for ventilation and protruding toward the cargo space of the ship A foamer is known (see Patent Document 1). In the foamer, since the shape of the foamed mesh is complicated and heavy, and cannot be easily removed, it is difficult to clean when clogged. Therefore, in order to prevent such clogging of the foamed mesh, a damper that switches the air flow is provided in front of the foamed mesh to prevent air from flowing to the foamed mesh side during normal ventilation, Only when it occurs, air flows toward the foam mesh.

JP 2001-54583 A

  However, in the foaming device described in Patent Document 1, the shape of the foamed mesh is complicated, and the damper is provided to complicate the structure of the entire facility, increasing the cost. When installed in a space, there is a problem that the number of vehicles that can be loaded on a ship is reduced due to its size.

  Therefore, the present invention provides a foamer that simplifies the structure of the foamed mesh, facilitates cleaning of the foamed mesh and inspection of the inside of the foamer, simplifies the structure of the entire facility, and reduces the cost. For the purpose.

The present invention has been made to solve the above problems, and the foaming device of the present invention is a foaming device constituting a part of a high expansion foam fire extinguishing device installed in a predetermined section,
A flat plate-like foamed mesh that is detachably or detachably attached to a cylindrical structure having an air flow path that supplies the predetermined compartment;
A radiating nozzle that is disposed inside the cylindrical structure and radiates a foaming agent toward the foamed mesh; and
The foamed mesh is attached so as to cover the tip opening of the rising wall protruding from the peripheral edge of the side wall opening formed on the side wall of the cylindrical structure toward the outside or the inside of the cylindrical structure. It is characterized by.

  Moreover, in the foamer of this invention, it is preferable that the flange which can attach the said foaming mesh is provided in the front-end | tip opening part of the said rising wall part.

  Moreover, in the foamer of this invention, it is preferable that the said foaming mesh and the said radiation nozzle are connected and unitized.

  Moreover, in the foamer of this invention, it is preferable that the said cylindrical structure is cylindrical.

  Moreover, in the foamer of this invention, it is preferable that the said foaming mesh is attached to the said cylindrical structure.

  Moreover, in the foamer of this invention, it is preferable that the said cylindrical structure is a part of ventilation duct for ventilation.

  Moreover, in the foamer of this invention, it is preferable to provide the bottomed cylindrical main-body part as the said cylindrical structure connected to the front-end | tip of the ventilation duct for ventilation via the flange.

  According to the present invention, it is possible to simplify the structure of the foamed mesh, facilitate the cleaning of the foamed mesh and the inside of the foamer, simplify the structure of the entire facility, and provide a foamer with reduced cost. It becomes possible.

It is a perspective view which shows a mode that the foamer of 1st Embodiment of this invention was attached to the ventilation duct. (A) is a side view which shows a mode that the foaming device of FIG. 1 was attached to the ventilation duct, (b) is a side view which shows a mode that the conventional foaming device was attached to the ventilation duct. It is a perspective view which shows 2nd Embodiment of the foamer which concerns on this invention. (A) is a side view which shows a mode that the foamer of FIG. 3 was attached to the ventilation duct in a ship, (b) is a side view which shows a mode that the foamer of FIG. 3 was attached to the ventilation duct near ship bottom. FIG. (A) is a side view which shows a mode that the foamer of FIG. 3 was attached to the ventilation duct in a ship, (b) is a side view which shows a mode that the foamer of FIG. 3 was attached to the ventilation duct near ship bottom. FIG. It is a perspective view which shows 3rd Embodiment of the foamer which concerns on this invention. (A) is a side view which shows a mode that the foamer of FIG. 3 was attached to the ventilation duct, (b) is a top view of the foamer and ventilation duct of FIG. 7 (a).

  Hereinafter, embodiments of a foamer according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows a state in which a foamer 1 according to a first embodiment of the present invention is installed in a ventilation duct 2 for ventilation described later.

  Here, the foamer 1 of this embodiment comprises a part of high expansion foam fire extinguishing apparatus, for example, can be installed in predetermined sections, such as the cargo space of the motor vehicle in a motor vehicle carrier. The cargo space in the car carrier is divided into multiple layers, and ventilation means for ventilation is provided in each of the sections S1, S2, S3, and S4. FIG. 2A shows a blower F and a cylindrical air duct 2 for ventilating a section S4 in a cargo space partitioned in multiple layers. By installing the foamer 1 in the blower duct 2, the blower F and the blower duct 2 that are normally used for ventilation are used as blowing means for blowing bubbles in the high expansion foam fire extinguishing device when a fire occurs. can do. In addition, in this embodiment, although the shape of the ventilation duct 2 demonstrates as what is cylindrical as a whole, if the flow path which supplies air to a predetermined division is formed, it will not be limited to this. For example, the cross section may be a polygonal shape or an oval cylindrical shape. In addition, the air duct 2 is not limited to the cylindrical shape provided independently in the predetermined section, and a part of the air duct 2 may be configured by a structural member constituting the predetermined section. That is, for example, a part of the air duct 2 may be constituted by a partition wall that forms a cargo space of a car carrier, a side wall of the hull, or a bottom wall.

  As shown in FIGS. 1 and 2 (a), a foamer 1 according to the present embodiment is disposed inside a blower duct 2 that is attached to a blower duct 2 serving as a tubular structure, and is disposed inside the blower duct 2. And a radiating nozzle 4 that radiates a blowing agent toward 3. In the present invention, the “cylindrical structure” includes a so-called bottomed cylindrical structure whose one end is closed.

  A side wall opening 2 a having a substantially rectangular shape in front view is formed on the side wall of the air duct 2. The air duct 2 includes a rising wall 2b that protrudes from the peripheral edge of the side wall opening 2a toward the outside of the air duct 2. In the present embodiment, the rising wall portion 2b protrudes in a direction parallel to a perpendicular extending from the center point of the side wall opening 2a toward the central axis C of the air duct 2, but is not limited thereto, and the rising wall portion 2b extends. The present angle can be changed as appropriate.

  The air duct 2 has a flange 2c extending perpendicularly to the rising wall 2b from the tip of the rising wall 2b to the outside. The flange 2c is formed in a flat rectangular frame shape. In the present embodiment, a bottom wall 2d for closing the tip opening is provided at the tip of the air duct 2, but the bottom wall 2d may not be provided.

  The foamed mesh 3 is a flat plate-like member in which a large number of holes are formed, and is attached to the air duct 2 so as to be detachable or openable / closable. In this embodiment, the foamed mesh 3 is welded to the mesh member 3a composed of a metal punching plate in which a large number of holes are formed as shown in FIG. The frame 3b is fixed. The material and thickness of the foamed mesh 3 are not particularly limited as long as the foamed mesh 3 is formed with a large number of holes through which the foaming agent radiated from the radiation nozzle 4 is passed. Further, in the present embodiment, the foamed mesh 3 has a rectangular shape when viewed from the front. However, the shape is not limited thereto, and various shapes may be used depending on the shape of the side wall opening 2a and the rising wall portion 2b of the air duct 2 described later. It can be adopted.

  The foam mesh 3 is attached so as to cover the front end opening of the rising wall 2b of the air duct 2. The foamed mesh 3 is arranged so that the frame 3 b is overlapped on the flange 2 c of the air duct 2 and fixed with bolts 5, and can be easily removed from the air duct 2 by removing the bolts 5. That is, the foam mesh 3 is detachably attached to the air duct 2.

  In addition, the shape of the side wall opening 2a formed on the side wall of the air duct 2 and the corresponding rising wall portion 2b, the axial position, the circumferential position, and the number thereof are not particularly limited, and the desired foam It can be appropriately set according to the discharge direction, the discharge amount, and the like. For example, when the heights of the sections S1, S2, S3, and S4 in the cargo space partitioned in multiple layers are high, a plurality of side wall openings 2a are provided in the axial direction of the air duct 2, and the respective side wall openings 2a are provided. It is also possible to provide the foam mesh 3 on the surface. Further, a plurality of side wall openings 2a may be provided in the circumferential direction of the air duct 2, and for example, the side wall openings 2a may be provided at two locations facing each other across the central axis C of the air duct 2. Thus, by providing a plurality of side wall openings 2a and attaching the foamer 1 to each of them, it becomes possible to efficiently supply fire-extinguishing bubbles over a wide range. When the side wall opening 2a is large, a plurality of foam meshes 3 may be provided side by side with respect to one side wall opening 2a. Moreover, in the one air duct 2, the some side wall opening 2a corresponding to several division S1, S2, S3, S4 is provided, and it is set as the structure which supplies air and foam to each division S1, S2, S3, S4. Also good. Furthermore, it is good also as a structure which forms an opening part also in the bottom wall 2d of the ventilation duct 2, provides the foaming mesh 3 so that the said opening part may be covered, and supplies foam also from the front end side.

  The radiation nozzle 4 is provided in the pipe 4a in the air duct 2, and in the event of a fire, the foaming agent supplied via the pipe 4a is supplied from the radiation port 4b at the tip of the radiation nozzle 4 to the inner surface of the foam mesh 3. Radiates toward The pipe 4a extends through the side wall of the blower duct 2 to the outside, and is connected to the supply pipe P through a pipe flange 4c provided at the tip. Although not shown, the supply pipe P is a mixed solution manufacturing facility that manufactures a mixed solution (foaming agent) of fire extinguishing liquid and water, and a distribution facility that distributes the blowing agent to a fire extinguishing target location (tank, (Including pumps, valves, instrumentation, etc.). The position of the pipe 4a is not particularly limited, and a plurality of pipes 4a can be provided. The position of the pipe flange 4c is not particularly limited, and can be set at various positions of the pipe 4a.

  In the example shown in FIG. 1, the radiation nozzles 4 are provided at a total of eight places on the two pipes 4 a extending along the central axis C of the blower duct 2, respectively. Each radiation nozzle 4 is arranged in a direction orthogonal to the foam mesh 3. The number and position of the radiating nozzles 4 can be changed as appropriate according to the area and shape of the foamed mesh 3. Preferably, the foaming agent radiated from the radiating port 4b is used as the inner surface of the foamed mesh 3. It is desirable to arrange it to be sprayed evenly throughout.

  Below, the effect | action of the foamer 1 of this embodiment is demonstrated. During normal times (when a non-fire occurs), the outboard air taken in by the blower F shown in FIG. 2A passes through the foam mesh 3 and is sent toward the section S4 via the blower duct 2. The Thereby, external air is sent to division S4 and ventilation is performed.

  And when a fire occurs in division S4, a foaming agent is radiated | emitted toward the inner surface of the foaming mesh 3 from the radiation opening 4b of each radiation nozzle 4 arrange | positioned inside the ventilation duct 2. FIG. At that time, the air passing through the blower duct 2 and the foaming device 1 passes through the foamed mesh 3 as in the case of ventilation, so bubbles are generated by the foamed mesh 3 and sent to the section S4 to extinguish the suffocation. can do.

  Here, FIG. 2B shows a conventional foaming device 1 ′ having a frustoconical foaming mesh 3 ′ for comparison. A damper unit 13 capable of changing the air flow path (air passage) is provided between the foaming device 1 ′ and the blower duct 2, and normally, through a ventilation port 13 a provided on the side surface of the damper unit 13. The section S4 is ventilated, and when a fire occurs, the air path is switched in the damper unit 13 and the foam formed by the foamer 1 ′ is supplied to the section S4. In the case of the conventional structure shown in FIG. 2 (b), the foamed mesh 3 ′ has a complicated shape, a large weight, and is difficult to remove. Therefore, the inner surface of the foamed mesh 3 ′ can be cleaned, or the foamer 1 ′. It is difficult to check the inside of the. Further, the structure of the damper unit 13 makes the structure complicated and large as a whole, increases the cost, and reduces the number of vehicles that can be loaded on the ship.

  On the other hand, in the foaming device 1 of the present embodiment, the foamed mesh 3 is a flat plate shape and has a simple structure. Moreover, since attachment / detachment from the air duct 2 is easy, even when the clogging of the foaming mesh 3 occurs, it can be easily removed and the inner surface can be cleaned, and a reduction in foaming performance and a reduction in ventilation performance can be suppressed. It is also easy to remove the foam mesh 3 and inspect and clean the inside of the air duct 2.

  Further, since the configuration of the damper unit 13 is not required, the overall structure is simplified, the cost can be reduced, and the space corresponding to the damper unit 13 can be saved. In particular, in an automobile carrier ship or the like in which the storage space is divided into a large number of sections, a large number of damper units 13 are not required because a large number of foamers 1 are installed in one ship, and the entire ship is remarkably different. Therefore, the structure can be simplified, the cost can be greatly reduced, and the number of vehicles loaded on the ship can be increased by saving space.

  Further, in the foamer 1 of the present embodiment, the cylindrical blower 2 is provided with the rising wall portion 2b and the foam mesh 3 is attached to the tip of the rising wall portion 2b. A flat plate-like foam mesh 3 can be easily attached to the duct 2. For this reason, compared with the case where the foaming mesh 3 which curves along the side surface of the cylindrical ventilation duct 2, for example, the foaming mesh 3 itself can be made into a simple structure, As a result, manufacture of the foaming mesh 3 is carried out. It becomes easy and manufacturing cost can be kept low. Furthermore, since the mounting surface of the foamed mesh 3 becomes flat by providing the flange 2c, the work of attaching the foamed mesh 3 is facilitated. Further, by providing the flange 2c, the foam mesh 3 can be attached only by the work from the outside of the air duct 2.

  Further, since the foamed mesh 3 is attached to the tip of the rising wall portion 2b, even when the air duct 2 is distorted, the distortion is relieved by the rising wall portion 2b. The load is reduced. In particular, the stress tends to concentrate on the corners of the rectangular foamed mesh 3 as in this embodiment. By providing the rising wall 2b, the stress concentration on the corners is reduced and damage is prevented. can do. For this reason, it is not necessary to increase the strength of the foamed mesh excessively, and the cost can be reduced.

  In addition, since the foamed mesh 3 is attached to the tip of the rising wall 2b, the rising wall 2b can suppress the foaming agent radiated from the radiation nozzle 4 from being scattered outside the foamed mesh 3. . Thereby, the ratio of the foaming agent which does not contribute to foaming can be reduced. As a result, the water retention of the foam is increased and the fire extinguishing performance can be improved.

  Moreover, since the side wall opening 2a of the air duct 2 can set the magnitude | size of an up-down direction (the axial direction of the air duct 2) to an arbitrary magnitude | size by making the height of division S4 into an upper limit, It is easy to ensure a large area compared to the tip opening. Therefore, even if the foam mesh 3 does not have a three-dimensional shape like a conventional truncated cone shape, a flat plate-like foam mesh 3 having an area sufficient for generating a desired amount of bubbles is easily formed. be able to.

Although the area of the foam mesh 3 is not particularly ^limited, it is preferably in the range of 1.5m ² ~2.5m 2. Moreover, it is preferable that the width | variety of the foaming mesh 3 is 1000-1500 mm, and it is preferable that height is 1000-2500 mm. In addition, although the diameter of the ventilation duct 2 is not specifically limited, It is preferable that it is 1000-1500 mm.

  Further, in the foamer 1 of the present embodiment, the foaming agent is disposed perpendicularly to the inner surface of the foamed mesh 3 by arranging the extending direction of the radiation nozzle 4 to be perpendicular to the inner surface of the foamed mesh 3. Since it can radiate | emit, foaming efficiency can be improved.

  Furthermore, in the foaming device 1 of the present embodiment, a structure in which air is sent to the section S4 through the foamed mesh 3 even during normal ventilation, so that relatively large dust contained in the outside air is foamed. It is difficult to flow into the compartment S4 after being filtered by the mesh 3, and it is possible to reduce the possibility that a cargo such as an automobile housed in the compartment S4 is damaged or soiled by the dust.

  In addition, although illustration is abbreviate | omitted, it is good also as a structure which can connect the flame | frame 3b of the foam mesh 3 to the flange 2c or the standing wall part 2b via a hinge, and can open and close by using the said hinge as a fulcrum. Thereby, the foam mesh 3 can be attached to the blower duct 2 so as to be openable and closable. In this case, the foamed mesh 3 is opened so that the inside and the inside of the air duct 2 including the inner surface of the foamed mesh 3 and the radiation nozzle 4 can be easily inspected and cleaned. Can be prevented. In this case, the position of the hinge may be provided at any one of the four sides on the top, bottom, left and right of the foam mesh 3.

  Hereinafter, other embodiments of the present invention will be described. In addition, the same code | symbol is attached | subjected about the structure same or corresponding to the above-mentioned 1st Embodiment, and description is abbreviate | omitted.

  FIG. 3 shows the foaming device 21 of the second embodiment in an independent state before being attached to the air duct 2. The foaming device 21 includes a frame 6 that holds the foamed mesh 3 in a detachable manner. The frame 6 has an outer shape larger than that of the frame 3b, and can be detachably fixed with a bolt in a state where the frame 3b is in contact with the front surface thereof. In this example, a support fitting 7 is provided on the lower side of the rectangular frame 6 for temporarily supporting the frame 3b when attaching and detaching.

  The foaming device 21 is unitized by integrally connecting the foamed mesh 3 and the radiation nozzle 4. Specifically, the frame 6 that holds the foamed mesh 3 and the piping 4a of the radiation nozzle 4 are connected by a connecting member 8 that is formed of a long metal object having an L-shaped cross section. In the present embodiment, four connecting members 8 on the top, bottom, left, and right are used, but the number and positions of the connecting members 8 can be changed as appropriate. The shape of the connecting member 8 is not particularly limited, but is preferably a lighter rod-shaped member (bar-shaped member).

  The foaming device 21 of the present embodiment has the foamed mesh 3 and the radiating nozzle 4 unitized as described above, so that the foamed mesh 3 and the radiating nozzle 4 can be attached to the air duct 2 at the same time. Thus, it is possible to perform the attaching work more efficiently than attaching the foamed mesh 3 and the radiation nozzle 4 to the air duct 2 separately. Moreover, since the position of the radiation nozzle 4 with respect to the foam mesh 3 can be fixed in advance, there is an advantage that it does not take time and effort to adjust the relative position between the foam mesh 3 and the radiation nozzle 4 when being attached to the air duct 2. In addition, since the size of the pipe 4a is smaller than the front end opening and the side wall opening 2a of the rising wall portion 2b, the unitized foamer 21 is connected to the front end opening of the rising wall portion 2b from the outside of the air duct 2. It can be easily inserted into the side wall opening 2a.

  4 (a) and 4 (b) are cross-sectional views of a ship in a state where the foaming device 21 of the second embodiment is attached to the air ducts 11 and 12 having a shape different from that of the air duct 2 of the previous embodiment. is there. 4 (a) and 4 (b), the flow of air in each of the air ducts 11 and 12 is schematically indicated by a two-dot chain line arrow. The inside of the air ducts 11 and 12 constitutes an air flow path partitioned by a partition wall or the like which is a structural member of the ship, and from the blower F similar to that shown in FIG. 2A, the side wall openings 11a and 12a To the predetermined sections S1 and S2.

  As shown in FIG. 4A, the air duct 11 has side wall openings 11a formed at two locations communicating with the section S1, and a rising wall portion 11b protruding from the peripheral edge of each side wall opening 11a, and a flange 11c. Is provided. A foamer 21 is attached so that the foam mesh 3 covers the tip opening of the rising wall 11b. By adopting a configuration in which the foaming device 21 is attached to the rising wall portion 11b, the load applied to the foamed mesh 3 can be reduced as in the previous embodiment.

  As shown in FIG. 4 (b), the air duct 12 has side wall openings 11a formed at two locations communicating with the sections S1 and S2, respectively, and rising wall portions 12b protruding from the peripheral edge portions of the respective side wall openings 11a. A flange 12c is provided. The foaming device 21 is attached so that the foam mesh 3 covers the tip opening of the rising wall 12b. With the configuration in which the foaming device 21 is attached to the rising wall portion 12b, the load applied to the foamed mesh 3 can be reduced.

  5 (a) and 5 (b) are cross-sectional views of the ship in a state where the foaming device 21 of the second embodiment is attached to the air ducts 13 and 14, respectively. As shown in FIG. 5A, the air duct 13 is formed with side wall openings 13a at two locations communicating with the section S1, and protrudes from the peripheral edge of each side wall opening 13a toward the inside of the air duct 13. A rising wall portion 13b and a flange 13c are provided at the tip of the rising wall portion 13b. The foaming device 21 is attached so that the foam mesh 3 covers the tip opening of the rising wall portion 13b. With the configuration in which the foaming device 21 is attached to the rising wall portion 13b, the load applied to the foamed mesh 3 can be reduced as in the previous embodiment. Moreover, since the rising wall part 13b does not protrude to the section S1, the load amount when used as a cargo space can be further increased. In the case shown in FIGS. 5A and 5B, when the foaming device 21 is attached, a maintenance hole (opening) for inserting the foaming device 21 into the side walls of the air ducts 13 and 14 is separately provided. And the foaming device 21 can be installed from the inside through the maintenance hole. Further, when the size of the foam mesh 3 is smaller than the side wall openings 13a and 14a, the foam mesh 3 can be opened and closed or detached from the outside of the air ducts 13 and 14, so the air ducts 13 and 14 and Maintenance such as cleaning of the foamed mesh 3 is also easy.

  As shown in FIG. 5 (b), the air duct 14 is formed with side wall openings 14a at two locations communicating with the sections S1 and S2, respectively, from the peripheral edge of each side wall opening 14a toward the inside of the air duct 14. And a rising wall portion 14b that protrudes and a flange 14c. A foamer 21 is attached so that the foam mesh 3 covers the tip opening of the rising wall portion 14b. With the configuration in which the foaming device 21 is attached to the rising wall portion 14b, the load applied to the foamed mesh 3 can be reduced. Further, since the rising wall portion 14b does not protrude toward the sections S1 and S2, the load amount when used as a cargo space can be further increased.

  FIG. 6 shows a foamer 31 according to the third embodiment. The foaming device 31 includes a bottomed cylindrical main body 32 as a tubular structure. The main body portion 32 is provided with a side wall opening 32a, a rising wall portion 32b, and a flange 32c in the same manner as the side wall opening 2a, the rising wall portion 2b, and the flange 2c provided in the air duct 2 shown in FIG. The configuration of the foam mesh 3 and the radiation nozzle 4 is the same as that of the foamer 1 shown in FIG. Further, one end portion (lower end portion in FIG. 6) of the main body portion 32 is closed by the bottom wall 32d, the other end portion (upper end portion in FIG. 6) is opened, and a flange 32e is provided. Yes. The main body 32 can be connected to the blower duct 2 by fixing the flange 32e to the front end opening of the cylindrical blower duct 2 with a bolt (not shown) similarly provided with a bolt. . The foaming device 31 is not limited to the cylindrical air duct 2 and may be attached to an air duct having another shape such as a polygonal cross section.

  FIG. 7A is a side view showing a state in which the foamer 21 shown in FIG. 3 is attached to a rising wall portion 15b that protrudes toward the inside of the cylindrical air duct 15, and FIG. It is a top view. As shown in FIGS. 7A and 7B, a side wall opening 15a is formed in the air duct 15, and a rising wall portion 15b protruding from the peripheral edge of the side wall opening 15a toward the inside of the air duct 15, A flange 15c is provided at the tip of the rising wall portion 15b. A foamer 21 is attached so that the foam mesh 3 covers the tip opening of the rising wall 15b. With the configuration in which the foaming device 21 is attached to the rising wall portion 15b, the load applied to the foamed mesh 3 can be reduced as in the previous embodiment. Further, since the rising wall portion 15b does not protrude to the outside of the air duct 15, the space of the predetermined section can be used effectively. In the case shown in FIGS. 7A and 7B, when attaching the foaming device 21, a maintenance hole (opening) for inserting the foaming device 21 is separately provided on the side wall of the air duct 15. In addition, the foaming device 21 can be installed from the inside through the maintenance hole. Alternatively, it is possible to assemble the blower duct 15 after attaching the foamer 21 first with the blower duct 15 in half, and then assembling the blower duct 15. When the size of the foamed mesh 3 is made smaller than the side wall opening 15a, the foamed mesh 3 can be opened / closed or attached / detached from the outside of the air duct 15, so that maintenance is easy.

  While the present invention has been described based on the illustrated examples, the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the claims, for example, the foaming of the present invention. The vessel is not limited to automobile carriers, but can also be used for ships with other vehicle loading areas such as ferries and roll-on / roll-off areas, container carriers and offshore floating structures, etc. For example, it can also be used for an engine room or the like. Moreover, it is good also as a structure which can provide the damper unit which has a ventilation port between the main-body part 32 in 3rd Embodiment, and the ventilation duct 2, and can switch an air path at the time of normal time and a fire outbreak.

1 Foamer 2 Air duct (tubular structure)
2a Side wall opening 2b Rising wall 2c Flange 2d Bottom wall 3 Foamed mesh 3a Mesh member 3b Frame 4 Radiation nozzle 4a Piping 4b Radiation port 4c Piping flange 5 Bolt 6 Frame 7 Support metal fitting 8 Connecting member 11 Air duct (tubular structure) )
11a Side wall opening 11b Rising wall portion 11c Flange 12 Air duct (tubular structure)
12a Side wall opening 12b Rising wall portion 12c Flange 13 Air duct (tubular structure)
13a Side wall opening 13b Rising wall 13c Flange 14 Air duct (tubular structure)
14a Side wall opening 14b Rising wall portion 14c Flange 15 Air duct (tubular structure)
15a Side wall opening 15b Rising wall 15c Flange 21 Foaming device 31 Foaming device 32 Main body (tubular structure)
32a Side wall opening 32b Rising wall portion 32c Flange 32d Bottom wall 32e Flange C Central axis F Blower P Supply piping S1, S2, S3, S4 Section (predetermined section)

Claims (7)

A foamer constituting a part of a high expansion foam fire extinguishing device installed in a predetermined section,
A flat plate-like foamed mesh that is detachably or detachably attached to a cylindrical structure having an air flow path that supplies the predetermined compartment;
A radiating nozzle that is disposed inside the cylindrical structure and radiates a foaming agent toward the foamed mesh; and
The foamed mesh is attached so as to cover the tip opening of the rising wall protruding from the peripheral edge of the side wall opening formed on the side wall of the cylindrical structure toward the outside or the inside of the cylindrical structure. Foamer.   The foaming device according to claim 1, wherein a flange to which the foamed mesh can be attached is provided at a tip opening of the rising wall portion.   The foaming device according to claim 1 or 2, wherein the foamed mesh and the radiation nozzle are connected and unitized.   The foaming device according to any one of claims 1 to 3, wherein the cylindrical structure is cylindrical.   The foaming device according to any one of claims 1 to 4, wherein a plurality of the foamed meshes are attached to the cylindrical structure.   The foaming device according to any one of claims 1 to 5, wherein the cylindrical structure is a part of a ventilation duct for ventilation.   The foamer as described in any one of Claims 1-5 provided with the bottomed cylindrical main-body part as the said cylindrical structure connected to the front-end | tip of the ventilation duct for ventilation via the flange.

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