Fire extinguishing agent storage container and fire extinguishing equipment including same

Abstract

To simplify a rustproofing process for the inner surface of a fire extinguisher storage container and eliminate the need for packing materials used to seal the container.SOLUTION: A fire extinguisher storage container includes: a body that has a bottomed cylindrical shape and has a projection piece projecting from an opening end inwards; a bag composed of polymeric materials that has a bag body to be stored in the body and a flange extending from the top end of the bag body to cover the top face of the projection piece; a fire extinguisher to be filled into the bag; a lid that covers the opening end of the body and holds the flange between itself and the projection piece; and a valve that is attached to the lid and ejects the fire extinguisher inside the bag to the outside in response to the user operation.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fire extinguishing agent storage container and a fire extinguishing system including the same. [Background technology]

[0002] In a fire extinguisher or other fire extinguishing agent storage container, the mouth of the container is sealed with a packing, which is mainly made of a rubber material. Incidentally, the container is filled with a corrosive fire extinguishing agent. Since the container is generally made of a metal material such as iron, steel, or aluminum, the inner surface of the container is subjected to an anti-rust treatment, such as painting, to prevent corrosion (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-164539 A Summary of the Invention [Problem to be solved by the invention]

[0004] When performing rust prevention treatment on the inner surface of a container, it is necessary to carry out a chemical conversion treatment (e.g., phosphate coating treatment) of iron, steel, or aluminum as a base treatment to improve the surface properties such as the adhesion of paint. As described above, there are many steps between the base treatment and the rust prevention treatment. Furthermore, if there are pinholes in the coating film attached to the inner surface of the container by the base treatment, there is a risk of corrosion progressing. Therefore, the rust prevention treatment requires a lot of time and cost.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to simplify the rust-proofing treatment of the inner surface of a fire extinguishing agent storage container and to eliminate the need for packing for sealing the container. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides: A main body having a bottomed cylindrical shape and a protruding piece protruding inward from an open end; a bag made of a polymeric material, the bag having a bag body housed within the main body and a flange extending from an upper end of the bag body to cover an upper surface of the protruding piece; A fire extinguishing agent filled in the bag; a lid that covers the open end of the main body and sandwiches the flange between the lid and the protruding piece; a valve attached to the lid for ejecting the extinguishing agent in the bag to the outside in response to a user operation; The present invention provides a fire extinguishing agent storage container comprising:

[0007] In the fire extinguishing agent storage container of the present invention, it is preferable that the main body has a plurality of shank portions protruding from the upper surface of the protruding piece, the flange portion has a plurality of holes corresponding to the plurality of shank portions, and the bag is fixed onto the main body by the lid with the plurality of shank portions inserted into the plurality of holes.

[0008] In the fire extinguishing agent storage container of the present invention, it is preferable that the flange has a protrusion formed along a circumferential direction on at least one of its upper surface and lower surface.

[0009] The present invention also provides a fire extinguishing system including any one of the fire extinguishing agent storage containers described above. Effect of the Invention

[0010] According to the present invention, it is possible to simplify the rust-proofing treatment of the inner surface of the container and to omit the packing for sealing the container, thereby reducing the manufacturing cost of the fire extinguishing agent storage container. [Brief description of the drawings]

[0011] [Figure 1] 1A and 1B are a front view showing an outline of a fire extinguishing system 1 according to a representative embodiment of the present invention, a front view in which the door of a storage box 6 is omitted, and a side view in which the side wall of the storage box 6 is omitted. [Diagram 2] 2A to 2C are a front view, a top view, and a cross-sectional view of a fire extinguishing agent storage container 2. [Diagram 3] 2A to 2C are a front view, a top view, and a cross-sectional view of a main body 11. [Figure 4] 1A and 1B are a front view, a top view, and a cross-sectional view of a bag 12. [Diagram 5] 1A to 1C are a front view, a top view, and a cross-sectional view of a state in which a bag 12 is attached to a main body 11. [Figure 6] 3A to 3C are diagrams showing an assembly procedure for the fire extinguishing agent storage container 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a fire extinguishing agent storage container and a fire extinguishing system according to a representative embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these drawings. In addition, since the drawings are intended to conceptually explain the present invention, dimensions, ratios, or numbers may be exaggerated or simplified as necessary for ease of understanding.

[0013] In this embodiment, a packaged fire extinguishing system is assumed as the fire extinguishing system 1, but the present invention can be applied to other types of fire extinguishing systems. The packaged fire extinguishing system can be installed as a substitute for an indoor fire hydrant system.

[0014] 1(A) to (C), a packaged fire extinguishing system 1 is composed of an extinguishing agent storage container 2, a pressurizing gas container 3, a hose 4, a nozzle 5, and a storage box 6. Although a plurality of extinguishing agent storage containers 2 are provided in the drawings, a single container may be used.

[0015] In this fire extinguishing system 1, gas filled in a pressurizing gas container 3 is introduced into a fire extinguishing agent storage container 2 through a pressure regulator (not shown), and the gas pressure causes the fire extinguishing agent to be sprayed from a nozzle 5 at the end of a hose 4. As off-the-shelf products can be used for the pressurizing gas container 3, hose 4, nozzle 5 and storage box 6, detailed explanations will be omitted.

[0016] The extinguishing agent storage container 2 will be described in detail below. The extinguishing agent storage container 2 stores the extinguishing agent 13 and sprays the extinguishing agent 13 to the outside in response to a user operation. As shown in Figures 2(A) to (C), the extinguishing agent storage container 2 includes a main body 11, a bag 12, the extinguishing agent 13, a lid 14, and a valve 15.

[0017] As shown in FIGS. 3(A) to (C), the main body 11 has a cylindrical shape with a bottom, and is fixed to the storage box 6 via legs 112.

[0018] The main body 11 has a protruding piece 114 that protrudes inward from the opening end 113. From the viewpoint of sealing the main body 11, the protruding piece 114 is preferably formed around the entire circumference of the opening end 113, but may be formed on only a part of the opening end 113.

[0019] A plurality of shaft portions 115 protrude from the upper surface of the protruding piece 114. The plurality of shaft portions 115 are preferably arranged at equal intervals. A screw groove (not shown) is formed in the plurality of shaft portions 115, and engages with a nut 116 (see, for example, the enlarged view of FIG. 2(C)).

[0020] The main body 11 is made of metal, and may be made of, for example, iron, steel, aluminum, or an alloy thereof. The main body 11 is designed to withstand a predetermined internal pressure (for example, about 1 MPa).

[0021] The inner surface of the main body 11 may be subjected to anti-rust treatment or may be omitted. Even if the inner surface of the main body 11 is subjected to anti-rust treatment, the anti-rust treatment may be simplified since the fire extinguishing agent 13 does not come into direct contact with the inner surface of the main body 11 as described later.

[0022] The main body 11 contains a bag 12 made of a polymeric material (see Figs. 2(C) and 5(C)). This polymeric material may be a resin (including an elastomer resin) or rubber. The bag 12 has flexibility or pliability to such an extent that it can be inserted into the main body 11 from the open end 113 of the main body 11, and is corrosion-resistant to the extinguishing agent 13. The bag 12 has an overall balloon-like outer shape, and may have a shape that corresponds to the inner surface of the main body 11, for example (see Fig. 4).

[0023] The bag 12 includes a bag body 121, which is a substantially cylindrical bag body with a bottom, stored in the main body 11, and a flange portion 122, which extends inward from the upper end of the bag body 121 and then folds back outward to have an opening smaller than the diameter of the bag body 121. The flange portion 122 is annular with a predetermined width and covers the upper surface of the protruding piece 114 (see Figs. 4(A) to (C)). From the viewpoint of ensuring sealing performance and strength, the flange portion 122 is preferably formed to have a high strength by being thicker than the bag body 121 or by being thermally melted (see the enlarged view of Fig. 4(C)). For example, the thickness T1 of the bag body 121 is 0.5 to 1.5 mm, and the thickness T2 of the flange portion 122 is 2 to 4 mm.

[0024] The flange 122 has a plurality of holes 123 at positions corresponding to the plurality of shaft portions 115 (see FIG. 4(B)). By inserting the plurality of shaft portions 115 into the plurality of holes 123, the bag 12 is appropriately positioned and fixed (prevented from rotating) to the main body 11, and the open end 113 of the main body 11 can be sealed evenly in the circumferential direction.

[0025] The flange 122 has an annular raised portion 124 formed along the circumferential direction on at least one of its upper and lower surfaces (see FIG. 4(B)). The raised portion 124 is provided to improve the sealing performance of the fire extinguishing agent storage container 2. Here, the raised portion 124 is formed on both the upper and lower surfaces of the flange 122 (see the enlarged view of FIG. 4(C)). For example, the raised portion 124 may protrude from the surface of the flange 122 by about 1 mm to 2 mm. Therefore, with the multiple shafts 115 inserted through the multiple holes 123, the bag 12 is fixed onto the main body 11 by the lid .

[0026] As described above, bag 12 can be made of a polymeric material such as resin or rubber, and is an integrally molded product having sufficient flexibility in bag body 121 and a thickness sufficient to seal open end 113 of main body 11 at flange 122. In other words, bag 12 has both the function of sealing main body 11 and the function of preventing rust on the inner surface of main body 11. This eliminates the need for rust-proofing the inner surface of the container 11, and if not, a simplified rust-proofing treatment is sufficient, thus making it possible to reduce the number of manufacturing steps for the extinguishing agent storage container 2. This contributes to reducing the time and cost required for manufacturing the extinguishing agent storage container 2 and the fire extinguishing equipment 1.

[0027] The bag 12 is preferably made of rubber such as, but not limited to, acrylonitrile-butadiene rubber. Other possible resins or rubbers include polyethylene, polypropylene, polyvinyl chloride, ethylene propylene rubber, styrene rubber, fluororubber, and butyl rubber.

[0028] The extinguishing agent 13 filled in the bag 12 may be a powder or a liquid, but here, water containing a third type wetting agent or the like is preferably used. That is, in this embodiment, the bag 12 is interposed between the main body 11 and the extinguishing agent 13, and the main body 11 and the extinguishing agent 13 are designed not to come into direct contact with each other.

[0029] Lid 14 covers open end 113 of main body 11 (see FIGS. 2(A) to (C)). That is, lid 14 sandwiches flange 122 between itself and protruding piece 114, thereby sealing main body 11. Lid 14 includes an annular portion 141 that is in close contact with flange 122, and a convex portion 142 that protrudes upward from the inner edge of annular portion 141.

[0030] A plurality of holes 143 corresponding to a plurality of shaft portions 115 of main body 11 are formed in annular portion 141. Therefore, with bag 12 attached to main body 11 and lid 14 further in place, nuts 116 are attached to the plurality of shaft portions 115, thereby making it possible to fix lid 14 to main body 11. In addition, a hole (not shown) for mounting the valve 15 is formed in the center of the convex portion 142.

[0031] A valve 15 is attached to the convex portion 142 of the lid 14. The valve 15 seals the inside of the main body 11, and also ejects the extinguishing agent 13 in the bag 12 to the outside in response to a user operation. A siphon pipe 151 is connected to the valve 15 to guide the extinguishing agent 13 in the main body 11 (bag 12) to the valve 15. In addition, the valve 15 is connected to a hose 4 having a nozzle 5 at its tip, and a tube connecting the pressurizing gas container 3.

[0032] Here, the procedure for assembling the fire extinguishing agent storage container 2 will be described with reference to Figs. 6(A) to (C). First, prepare the main body 11. The inner surface of the main body 11 may or may not be subjected to anti-rust treatment, but since the bag 12 is interposed between the fire extinguishing agent 13 and the main body 11, the anti-rust treatment may be simpler than in the past. Therefore, it is possible to reduce the time and cost required for the anti-rust treatment.

[0033] Next, the bag 12 is inserted from the open end 113 of the main body 11 (see FIG. 6(A)). Because the bag main body 121 has sufficient flexibility and because the open end 113 of the main body 11 is relatively wide, the bag main body 121 can be smoothly inserted into the main body 11. At this time, the holes 123 of the flange 122 of the bag 12 are inserted over the multiple shafts 115 of the main body 11, and the flange 122 covers the protruding pieces 114 of the main body 11.

[0034] Next, the extinguishing agent 13 is injected into the bag 12 from the open end 113 of the main body 11 (bag 12). The integrated lid 14, valve 15 and siphon tube 151 are then inserted into the main body 11 (bag 12) (see FIG. 6(B)). Alternatively, the lid 14 may be attached to the main body 11, and the valve 15 and siphon tube 151 may be attached to the lid 14. In either case, the opening end 113 of the main body 11 (bag 12) is relatively wide, so that damage to the bag 12 by the tip of the siphon tube 151 can be prevented. At this time, the holes 143 of the annular portion 141 of the lid 14 are inserted over the multiple shaft portions 115 of the protruding pieces 114 of the main body 11.

[0035] Then, nuts 116 are screwed onto multiple shafts 115 protruding from lid 14 to integrate lid 14 and main body 11 (see FIG. 6(C)). At this time, flange 122 of bag 12 is sandwiched between annular portion 141 of lid 14 and protruding piece 114 of main body 11, sealing the inside of main body 11. Therefore, a sealing material such as a packing can be omitted. In this manner, the extinguishing agent storage container 2 is completed.

[0036] The operation method of the fire extinguishing system 1 will now be described. First, the handle of the pressurizing gas container 3 is turned to fully open, whereby gas flows from the pressurizing gas container 3 into the extinguishing agent storage container 2, causing the pressure inside the extinguishing agent storage container 2 to rise. Next, the operator holds the nozzle 5, removes the hose 4, and fully opens the cock of the nozzle 5. This causes the extinguishing agent 13 in the extinguishing agent storage container 2 to pass through the hose 4 and be sprayed from the nozzle 5 to the source of the fire.

[0037] After use, the following process is performed: First, the handle of the pressurizing gas container 3 is turned to close it. Next, the cock of the nozzle 5 is opened to completely discharge the extinguishing agent 13 and the remaining pressure. When refilling the extinguishing agent 13, the extinguishing agent storage container 2 is removed from the storage box 6, washed with water, and refilled with new extinguishing agent 13. In addition, the hose 4, nozzle 5, etc. are washed with water, and the pressurizing gas container 3 is replaced with a new one.

[0038] According to this embodiment, it is possible to simplify the rust-proofing treatment of the inner surface of the body 11 of the extinguishing agent storage container 2 and to omit the packing for sealing the extinguishing agent storage container 2. This makes it possible to reduce the manufacturing cost of the extinguishing agent storage container 2.

[0039] Representative embodiments of the present invention have been described above, but the present invention is not limited to these, and various design modifications are possible, which are also included in the present invention. [Explanation of symbols]

[0040] 1 Fire extinguishing equipment 2. Fire extinguishing agent storage container 3. Pressurized gas cylinder 4 Hose 5 Nozzles 6 Storage Box 11 Main unit 12 bags 13 Fire extinguishing agents 14 Lid 15 Valve 114 Projecting piece 122 Flange

Claims

1. A main body having a bottomed cylindrical shape and a protruding piece protruding radially inward from an open end thereof; a bag made of a polymeric material, the bag having a bag body housed within the main body and a flange extending from an upper end of the bag body to cover an upper surface of the protruding piece; A fire extinguishing agent filled in the bag; a lid that covers the open end of the main body and sandwiches the flange of the bag between the lid and the protruding piece of the main body; a valve attached to the lid for ejecting the extinguishing agent in the bag to the outside in response to a user operation; A fire extinguishing agent storage container comprising:

2. The flange portion extends inward from the upper end of the bag body, is folded back, and extends outward to cover the upper surface of the protruding piece of the body.

2. The fire extinguishing agent storage container according to claim 1 .

3. The flange portion has a protruding portion formed along a circumferential direction on at least one of an upper surface and a lower surface thereof; 2. The fire extinguishing agent storage container according to claim 1 .

4. The main body has a plurality of shaft portions protruding from an upper surface of the protruding piece, The flange portion has a plurality of holes corresponding to the plurality of shaft portions, the bag is fixed on the main body by the lid in a state in which the shaft portions are inserted through the holes; 2. The fire extinguishing agent storage container according to claim 1 .

5. A fire extinguishing system comprising a fire extinguishing agent storage container described in any one of claims 1 to 4.

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