KR101838809B1 - Discharger - Google Patents

Abstract

[PROBLEMS] Space saving of the foaming machine enables effective use of the space in which the foaming machine is installed.
The present invention relates to a high-expansion foam fire extinguishing system comprising a plurality of compartments (S1, S2, S3, S4) as a foaming machine (1, 20, 30) constituting a part of a high- And a spinning nozzle 3 disposed inside the blowing duct 6 and radiating a foaming agent toward the foaming mesh 2. The blowing duct 2 is provided in a rectangular tubular portion of a blowing duct 6 for supplying air to the foaming mesh 2, ).

Description

Blowing {DISCHARGER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foamer used in a high-expansion foam fire extinguishing apparatus, and more particularly, to a space saving space of a foaming machine to effectively utilize a space in which the foamer is installed.

For example, a high expansion foam extinguishing device is known as an extinguishing device installed in a storage space such as a cargo space (cargo hold) of a car carrier. The high expansion foam fire extinguishing device is a device for discharging a mixed solution (blowing agent) containing a surfactant or water (fresh water or seawater) from a spinning nozzle toward a foam net and simultaneously supplying air, The foam is foamed, the foam is wrapped with the foam, and the fire is evolved by the effect of the asphyxiation.

Compared with fire extinguishing systems using halogen gas or CO ₂ gas, the high expansion foam fire extinguishing system is widely used as a fire extinguishing device for fire in a cargo space of a ship, an engine room, etc., because it is highly safe and environmentally friendly.

As a foaming machine used in such a high-expansion foam fire extinguishing device, conventionally, there has been proposed a bellows (trunk) formed in a cylindrical shape, a truncated cone-shaped foam net provided at the tip of the trunk, And a spinning nozzle for spinning the foaming agent toward the spinning nozzle (see Patent Document 1).

Japanese Patent Application Laid-Open No. 2001-54583

However, in the foaming machine disclosed in Patent Document 1, there is a problem that the cylindrical body and the truncated conical foam net occupy a large space in the cargo space of the vessel, thereby reducing the cargo load.

Therefore, it is an object of the present invention to make it possible to effectively use the space in which the foaming machine is installed by reducing the space of the foaming machine.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and a foaming machine of the present invention is a foaming machine constituting a part of a high expansion foam extinguishing device installed in a predetermined section,

A foam mesh installed in a rectangular tubular portion of a blowing duct for supplying air to the predetermined section,

And a spinning nozzle provided inside the blowing duct and radiating the foaming agent toward the foamed mesh.

Further, in the foaming machine of the present invention, it is preferable that the foaming machine has a connection portion connecting the foamed mesh and the spinning nozzle.

In the foaming machine of the present invention, it is preferable that the mesh is disposed so as to cover the opening provided in the side wall of the blowing duct.

In the foaming machine of the present invention, it is preferable that the foamed mesh has a flat plate shape.

Further, in the foaming machine of the present invention, it is preferable that the foam mesh is disposed so as to cover the opening in the axial direction of the blowing duct.

In the foaming machine of the present invention, it is preferable that the foam mesh is configured to be openable and closable with respect to a frame surrounding the foam mesh via a hinge portion.

In the foaming machine of the present invention, it is preferable that the foamed mesh is configured to be foldable.

According to the present invention, the space in which the foaming machine is installed can be effectively used by reducing the space of the foaming machine.

1 is a perspective view showing a first embodiment of a foaming machine according to the present invention.
Fig. 2 is a perspective view showing a state in which the bubble generator of Fig. 1 is attached to a blowing duct.
Fig. 3 (a) is a side view showing the state where the expanding machine of Fig. 1 is attached to the blowing duct, and Fig. 3 (b) is a side view showing a state where the conventional expanding machine is attached to the blowing duct.
Fig. 4 (a) is a plan view showing a plurality of blowing machines of Fig. 1 attached to a blowing duct, and Fig. 4 (b) is a front view.
Fig. 5 is a perspective view showing a state in which a plurality of blowing machines of Fig. 1 are attached to a blowing duct in a lateral direction. Fig.
Fig. 6 is a perspective view showing a second embodiment of a bubble generator according to the present invention. Fig.
7 is a perspective view showing a state in which a plurality of blowing machines of Fig. 6 are attached to a blowing duct.
8 is a perspective view showing a third embodiment of a blowing machine according to the present invention.
Fig. 9A is a side view showing a state in which the foamed mesh is folded in the expanding machine of Fig. 3, and Fig. 9B is a side view showing the expanded state of the foamed mesh.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, one embodiment of a blower according to the present invention will be described in detail with reference to the drawings. Fig. 1 shows a blower 1 according to a first embodiment of the present invention. The blowing machine 1 of the present embodiment integrally connects the foamed mesh 2 having a plurality of holes and the spinning nozzle 3 for radiating the foaming agent toward the foamed mesh 2 by the connecting portion 4, , The blower 1 is directly installed on a rectangular tubular portion of a blowing duct 6 to be described later and used.

Here, the blower 1 of the present embodiment constitutes a part of a high-expansion foam fire extinguishing system and can be installed, for example, in a cargo space in a car carrier. The cargo space in the cargo freight carrier is divided into multiple layers, and each section is provided with ventilation means for ventilation. 3 (a) shows a blower 5 for ventilating the compartment S4 in the cargo space partitioned in a multilayered shape, and a rectangular duct-shaped blast duct 6. The blower 5 and the blowing duct 6 which are normally used for ventilation are installed in the blowing duct 6 of the present embodiment in such a manner that the blowing ducts 6 and the blowing ducts 6, It is possible to use it as blowing means for blowing air for foaming. In this embodiment, the blowing duct 6 is a rectangular barrel having a rectangular shape as a whole. However, the present invention is not limited to this, and the blowing duct 6 ) May have a circular or other cylindrical shape in cross section.

In the following description, the direction parallel to the extending direction (axial direction) of the central axis C of the air blast duct 6 shown in Fig. 2 is set to the vertical direction (height direction) A direction parallel to a long side of a rectangle formed by a cross section (a section perpendicular to the central axis C) is referred to as a lateral direction (width direction), and a direction parallel to a short side is defined as a fore and aft direction (depth direction).

In the present embodiment, the foam mesh 2 is a metal punching plate of a flat plate shape having a plurality of holes formed therein, as shown in a part of an enlarged view. The rectangular frame-shaped first frame 2a is welded or bolted And the like. In the present embodiment, the first frame 2a is detachably attached to the second frame 2b, which is located on the rear side of the first frame 2a and whose outer shape is larger than that of the first frame 2a, And a supporting bracket 2c for temporarily supporting the first frame 2a at the time of detachment is provided on the lower side of the second frame 2b. The material and the thickness of the foamed mesh 2 are not particularly limited as long as a large number of holes for forming the foam are formed by passing the foaming agent radiated from the spinning nozzle 3. Further, it is not limited to the flat plate phenomenon, and it is also possible to use a plate obtained by processing into a three-dimensional shape.

The spinning nozzle 3 is fixed to the rear side of the foamed mesh 2 by a connecting portion 4. In the present embodiment, the spinning nozzle 3 is arranged so that the extending direction of the central axis thereof is orthogonal to the inner surface of the foamed mesh 2. In the present embodiment, a horizontal pipe 3c extending in the left-right direction and a vertical pipe 3b extending in the vertical direction from the horizontal pipe 3c extend from the pipe flange 3b connected to the external pipe P for supplying the foaming agent, And the spinning nozzles 3 are provided at two positions in the vertical direction relative to the respective longitudinal pipes 3d. The longitudinal piping 3d adjacent to the left and right is connected to the distal end side by a reinforcing member 3e. Although not shown, the external piping P may be a mixed solution production facility for producing a mixed solution (foaming agent) of digestive liquid and water or a distribution facility for distributing the foaming agent to a site where a fire occurs, such as a tank, , A measuring apparatus, etc.) and the like. The number and arrangement of the spinning nozzle 3 can be appropriately changed according to the area and shape of the foamed mesh 2 but most preferably the foaming agent emitted from the spinning orifice 3a is blown into the foamed mesh 2 so that they can be evenly blown over the entire inner surface of the container. Further, the position of the pipe flange 3b is not particularly limited, but can be set at various positions of the pipe constituting the flow path.

The connecting portion 4 has a connecting rod 4a for connecting both ends of the second frame 2b and the lateral pipe 3c to each other and a connecting rod 4b for connecting the second frame 2b and the upper and lower reinforcing members 3b, And upper and lower connecting rods 4b connecting the upper and lower connecting rods 3e. The shape of the connecting portion 4 is not particularly limited as long as it is kept in a predetermined relative positional relationship by connecting the foamed mesh 2 and the spinning nozzle 3. It is also possible to attach the foamed mesh 2 and the spinning nozzle 3 directly to the rectangular tubular portion of the blowing duct 6 and to omit the connecting portion 4. In this case, It can be simplified.

Fig. 2 shows a state in which the blowing machine 1 is installed in the blowing duct 6. Fig. The blowing machine 1 is disposed so as to cover the opening formed in the front side wall 6a of the blowing duct 6 with the foamed mesh 2 and the second frame 2b is disposed to face the side wall 6a from the inner side And fixed by bolt joining. The air that has flown through the blowing duct 6 flows into the predetermined section through the foam mesh 2 because the front end (lower end) of the blowing duct 6 is closed by the bottom wall 6b in the present embodiment, (Outgoing). The position where the foam mesh 1 is placed in the blowing duct 1 by forming the opening in the blowing duct 6 is not limited to the front side of the bottom wall 6a but may be the left or right side or the rear side, But may be provided at a plurality of locations.

The width W1 of the foam mesh 2 in the left-right direction and the height H1 in the vertical direction are not particularly limited. For example, the width W1 is about 500 to 2500 mm and the height H1 ) Can be set to about 500 to 2500 mm. The width W2 and the depth D2 of the blowing duct are not particularly limited. For example, the width W2 may be about 1000 to 3000 mm and the depth D2 may be about 500 to 1000 mm 2).

Hereinafter, the operation of the evaporator 1 will be described in more detail. The air outside the vessel blown by the blower 5 is blown out through the blowing duct 6 to the compartment S4 through the foam mesh 2 of the blower 1 at a normal time As shown in FIG. Thereby, the compartment S4 provided with the evaporator 1 is ventilated (see Fig. 3).

When a fire occurs in the compartment S4, the foaming agent is radiated toward the foam mesh 2 from the spout 3a of each sprinkling nozzle 3 disposed in the blowing duct 6, The foam generated in the foam mesh 2 is sent to the partition S4 by using the air supplied through the opening 6 to evacuate the fire.

Here, Fig. 3 (b) is shown for comparison with a conventional foaming machine 1 'having a cylindrical body 8 and a truncated foam mesh 2'. A damper unit 7 is provided between the blowing unit 1 'and the blowing duct 6 so as to change the air passage (air passage and air passage). Normally, the damper unit 7 is provided on the side of the damper unit 7 The compartment S3 is ventilated through the ventilation port and when the fire occurs, the air in the damper unit 7 is switched to supply the foam formed in the ventilator 1 'to the compartment S4 . As shown in Fig. 3 (b), a foaming machine 1 'having a cylindrical body 8 and a frustum-shaped foamed mesh 2' Compared with the abandonment (1), a large space is occupied in the partition (S4), and the amount of cargo stored in the partition (S4) is reduced accordingly.

In the blowing machine 1 of the present embodiment, the opening formed in the side wall 6a of the rectangular tubular blowing duct 6 is covered with the flat foaming mesh 2, 1 occupies less space in the partition S4 than in the conventional evaporator 1 'shown in Fig. 3 (b). That is, the space inside the partition S4 can be effectively utilized by the space saving of the evaporator 1, and in the case of applying to the cargo space as in the present embodiment, the load amount of the cargo can be increased. Particularly, in a car carrier or the like in which the containment space is divided into a plurality of sections, since a plurality of the evaporators 1 are provided in one ship, the space saving of each evaporator 1 allows The load capacity of the cargo space can be remarkably improved.

In the blowing machine 1 of the present embodiment, the foam mesh 2 is disposed on the side wall 6a of the blowing duct 6, so that the foamed mesh 2 on the side of the bottom wall 6b of the blowing duct 6 It is easy to secure a large area of the foamed mesh 2 as compared with the case where the mesh 2 is arranged. As a result, even when the foamed mesh 2 is formed into a flat plate shape, it is possible to secure an area of the foamed mesh 2 sufficient for generating a desired amount of foam. Therefore, for example, as shown in Fig. 3 (b) The manufacturing of the foamed mesh 2 is facilitated as compared with the case of forming the foamed mesh 2 having a three-dimensional shape such as the shape of a truncated cone.

In the blowing machine 1 of the present embodiment, by arranging the axial line of the spinneret 3 so as to be perpendicular to the inner surface of the foam mesh 2, the foaming agent is radiated perpendicularly to the inner surface of the foam mesh 2 It is possible to increase the foaming efficiency.

3 (b), since the damper unit 7 for switching the air passage is not used, the partition S3 at the upper end of the partition S4 is used, And the effective use of additional space is also possible.

Further, in the ventilator 1 of the present embodiment, since the air is sent out to the partition S4 via the foam mesh 2 even when ventilation is normally performed, a relatively large dust contained in the outside air flows into the compartment S4), and the concern that the cargo such as an automobile contained in the compartment S4 is damaged by the dust or is contaminated can be reduced.

The foam mesh 2 may be constructed so that the first frame 2a and the second frame 2b are connected to each other by a hinge and opened and closed with the hinge portion as a fulcrum. This makes it easy to check and clean the interior of the blowing duct 6 including the inner surface of the foamed mesh 2 and the spinneret 3 by opening the foamed mesh 2, It is possible to prevent degradation of foaming performance and deterioration of ventilation performance. In this case, the position of the hinge portion may be one of the four sides of the upper, lower, left, and right sides.

4 (a) is a plan view showing a state in which two blowing units 1 are arranged side by side with respect to a blowing duct 6 having a width approximately twice the width of the blowing unit 1. FIG. 4 4 (b) is a front view. As described above, by arranging the plurality of fans 1 in parallel to the size of the blowing duct 6, it is possible to increase the amount of foam generation and increase the evolving ability, so that the sections S1 to S4 ) Is large, it is effective. The blowing machine 1 of the present invention can be easily attached to the blowing duct 6 because the foam mesh 2 and the spinning nozzle 3 are connected and unitized by the connecting portion 4, Since the structure is simple, the manufacturing is easy and the cost can be suppressed. 5 (a) and Fig. 5 (b), the separator 1 of this embodiment is formed by horizontally arranging two separators 1 that are rotated 90 degrees in the transverse direction It is also possible to arrange it. In this case, the support fittings 2c are attached to the lower side in the installed state.

Hereinafter, another embodiment of the present invention will be described. The same or corresponding components as those of the first embodiment described above are denoted by the same reference numerals, and a description thereof will be omitted.

Fig. 6 shows a blower 20 as a second embodiment of the present invention. The blowing machine 20 of the present embodiment includes a foam mesh 22 formed in a three-dimensional shape, four spinning nozzles 3 arranged in a line on the upper side of the foam mesh 22, and connecting portions 4 . The foamed mesh 22 is formed into a three-dimensional shape in which the distal end portion thereof is curved downward from the base portion fixed to the rectangular first frame 22a and has a substantially triangular shape as viewed from the side. The blower 20 of the present embodiment can be provided so as to cover the front opening of the blowing duct 6 with the foamed mesh 22. In the present embodiment as well, It is possible to obtain an effect that the space in the predetermined section can be effectively used by the space saving. The connecting portion 4 includes a left and right connecting rod 4c for connecting left and right sides of the second frame 2b with both ends of the lateral pipe 3c and front and rear connecting rods 4c, And a front-rear connecting rod 4d for connecting the lateral pipe 3c with the front-rear connecting rod 3c.

Fig. 7 (a) is a side view of the blowing device 20 shown in Fig. 6, in which the two blowing devices 20 are arranged side by side on the front opening 6d of the blowing duct 6 having approximately twice the width of the blowing device 20 And Fig. 7 (b) is a side view. Fig. In the present embodiment, the damper unit 27 capable of changing the air passage is provided in the blowing duct 6. [ The damper unit 27 includes an air cylinder 27a that is freely stretchable and expandable and an open / close plate 27b that is driven by the air cylinder 27a. The ventilation opening 6c provided in the side wall 6a of the blowing duct 6 is opened by the opening and closing plate 27b while closing the air passage leading to the foam mesh 22 in the blowing duct 6, And sends air from the ventilation port 6c. It is possible to close the ventilation port 6c by the opening and closing plate 27b and to open the air passage to the foam mesh 22 to supply the foam through the foam mesh 22. [ According to this, when the air is normally ventilated, the air from the blowing duct 6 does not pass through the foam mesh 22, so that clogging and contamination of the foam mesh 22 can be suppressed.

The foamed mesh 22 is pivoted through a hinge portion provided between the first frame 22a and the second frame 22b so that the foamed mesh 22 can be opened and closed as shown by the broken line in Figure 7 (b) . This makes it easier to inspect and clean the inside of the blowing duct 6 by opening the foam mesh 22 so as to prevent the foaming performance from being lowered due to clogging of the foam mesh 22 and the deterioration of the ventilation performance have. In this case, the damper unit for switching the air passage can be abolished.

Fig. 8 shows a blower 30 as a third embodiment of the present invention. The blowing machine (30) has a folding foamed mesh (32) arranged inside a rectangular first frame (32a). The foamed mesh 32 has two rectangular flat plate-like mesh members 32c constituted by a punching plate or the like facing each other and a lower side of the mesh member 32c as a hinge portion 32d to be mutually rotatable . The connecting portion 4 includes a left and right connecting rod 4c for connecting left and right sides of the second frame 2b with both ends of the lateral pipe 3c and front and rear connecting rods 4c, And a front-rear connecting rod 4d for connecting the lateral pipe 3c with the front-rear connecting rod 3c.

9 (a) and 9 (b), the blowing unit 30 is provided at the front end opening 6d of the blowing duct 6. As shown in Fig. Normally, the foam mesh 32 is arranged along the rear side wall 6a in a folded state (see Fig. 9 (a)). When the fire occurs, the foamed mesh 32 is expanded using the air cylinder 31 or the like (see FIG. 9 (b)), and the foamed mesh is removed from the spinning nozzle 3 By blowing the foaming agent, foam can be formed and supplied from the foam mesh 32. In the ventilator 30 of the present embodiment, since the air from the blowing duct 6 can not pass through the foam mesh 32 when the foam mesh 32 is folded and is normally ventilated, The occurrence of clogging or contamination can be suppressed. Also in this embodiment, as in the first embodiment, it is possible to obtain an effect that the space in the predetermined section can be effectively used by the space saving of the evaporator 30. [ Also, as in the case of the second embodiment, a configuration in which two blowing units 30 are arranged side by side on the left and right sides and is installed in the blowing duct 6 having a width approximately twice the width of the blowing unit 30 It is possible.

Although the present invention has been described based on the embodiment shown in the drawings, the present invention is not limited to the above-described embodiment, but can be changed suitably within the scope of the claims. For example, And a ventilation duct between the blowing duct 6 may be provided so that the air passage can be switched between normal and during a fire. Further, the foaming machine of the present invention is not limited to a car carrier, but may be used for, for example, ships having a car loading area such as a ferry and a roll-on / roll-off area, a container carrier and a floating ocean structure, The present invention is not limited to a space, but may be used in, for example, an engine room.

1: Blowing machine
2: Foam mesh
2a: first frame
2b: second frame
2c: Support fittings
3: Spinning nozzle
3a:
3b: Pipe flange
3c: Lateral piping
3d: longitudinal piping
3e: reinforcing member
4: Connection
4a: Right and left connecting rod
4b: Upper and lower connection rod
4c: Right and left connecting rod
4d: Front and rear connection load
5: blower
6: Ventilation duct
6a: side wall
6b: bottom wall
6c: Ventilation hole
6d: end opening
7: Damper unit
20: Blower
22: Foam mesh
27: Damper unit
27a: Air cylinder
27b: opening / closing plate
30: Blower
31: Air cylinder
32: Foam mesh
32a: first frame
32b: second frame
32c:
32d:
C: center axis
S1, S2, S3, and S4: A compartment (a predetermined compartment)

Claims (7)

A foaming machine constituting a part of a high expansion foam fire extinguishing device installed in a predetermined section,
A foaming mesh installed in a rectangular tubular portion of a blowing duct which is used as a ventilation duct in the normal section and supplies air blown by a blower when a fire occurs; And
And a spinning nozzle installed inside the blowing duct and radiating a foaming agent toward the foamed mesh,
The foamed mesh and the spinning nozzle are integrally connected by a rod-shaped connecting portion so as to be attachable to the blowing duct in a unitized state,
Wherein the foam mesh is disposed so as to cover an opening provided in a side wall of the blowing duct whose axial end is closed by a bottom wall,
Blowing. delete delete The method according to claim 1,
Wherein said foam mesh has a flat plate shape. delete The method according to claim 1 or 4,
Wherein the foam mesh is configured to be openable and closable with respect to a frame surrounding the foam mesh via a hinge portion. delete

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