Fire extinguishing equipment and container supports

Abstract

To provide an easily-installable container support.SOLUTION: A container support 20 includes a container support body 15 for holding a fire extinguishing agent storage container 1 for supplying fluid into a sensing tube 24 to be melted by heat of fire, and a display part 14 provided on the container support body 15, for displaying at least either of a pressure in the fire extinguishing agent storage container 1, and a pressure in the sensing tube 24 supplied from the fire extinguishing agent storage container 1.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a container support. [Background technology]

[0002] Utility Model Registration No. 3160699 (Patent Document 1) and Utility Model Registration No. 3179000 (Patent Document 2) disclose automatic fire extinguishing devices that use fire detection tubes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3160699 [Patent Document 2] Utility Model Registration No. 3179000 Summary of the Invention [Problem to be solved by the invention]

[0004] There was a problem that construction was difficult with conventional equipment. [Means for solving the problem]

[0005] The container support according to the present invention comprises a container support body that holds a fire extinguishing agent storage container that supplies fluid to a sensing tube that melts due to the heat of a fire, and a display unit provided on the container support body that displays at least one of the pressure inside the fire extinguishing agent storage container and the pressure inside the sensing tube that is supplied from the fire extinguishing agent storage container.

[0006] In a container support configured in this manner, the container support body and the display portion are integrated, which makes installation easier than when they are separate.

[0007] Furthermore, the wiring between the fire extinguishant storage container and the display unit is shortened, improving earthquake resistance. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of a cable tray fire extinguishing system 60 according to a first embodiment. [Figure 2] 1 is a front view of a container support 20 according to a first embodiment. [Figure 3] 3 is a plan view of the container support 20 as seen from the direction indicated by the arrow III in FIG. 2. FIG. [Figure 4] 4 is a bottom view of the container support 20 as seen from the direction indicated by the arrow IV in FIG. 2. FIG. [Figure 5] 3 is a side view of the container support 20 as seen from the direction indicated by the arrow V in FIG. 2. FIG. [Figure 6] 6 is a cross-sectional view of the container support 20 taken along line VI-VI in FIG. 2. [Figure 7] FIG. 2 is a front view of the display unit 14 shown in FIG. [Figure 8] FIG. 10 is a schematic diagram of a container support 20 according to a second embodiment. [Figure 9] FIG. 2 is a schematic diagram of a container support 20 of a comparative example. [Figure 10] FIG. 10 is a cross-sectional view taken along line XX in FIG. [Figure 11] FIG. 10 is a cross-sectional view of a deformed fixing bar 107. [Figure 12] FIG. 10 is a schematic diagram of a container support 20 according to a third embodiment. [Figure 13] FIG. 2 is a schematic diagram of a container support 20 of a comparative example. [Figure 14] FIG. 10 is a schematic diagram of a cable tray fire extinguishing system 60 according to a fourth embodiment. [Figure 15] FIG. 10 is a schematic diagram of a cable tray fire extinguishing system 60 according to a fifth embodiment. [Figure 16] FIG. 10 is a schematic diagram of a container support 20 according to a sixth embodiment. [Figure 17] 2 is a schematic diagram of a unit 300 in which a nitrogen cylinder 201, a pressure reducing valve 203, and an excess flow valve 205 are integrated. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings. The same or corresponding parts will be designated by the same reference characters, and the description thereof will not be repeated. The embodiments can also be combined.

[0010] (Embodiment 1) Fig. 1 is a schematic diagram of a cable tray fire extinguishing system 60 according to embodiment 1. As shown in Fig. 1, in the cable tray fire extinguishing system 60 according to embodiment 1, a container valve is attached to the top of a fire extinguishing agent storage container 1. The fire extinguishing agent storage container 1 is supported by a container support body 15.

[0011] Connected to the container valve 19 are a copper pipe 25 for discharging the fire extinguishing agent, a sensing tube 24, a pressure switch 4 for the sensing tube, and a pressure switch 3 for the storage container. The pressure switch 4 for the sensing tube does not necessarily have to be connected directly to the container valve 19, but may be connected somewhere along the sensing tube 24 (near the pressure gauge).

[0012] The inside of the sensing tube 24 is constantly pressurized. A cable tray 31 is installed in a factory, building, power plant, etc. The cable tray 31 is cylindrical and has a cable installed inside it. The cable tray 31 is covered with a flame-retardant sheet 32. The flame-retardant sheet 32 ​​is fixed to the cable tray 31 with a fixing band 33. A stainless steel band is wrapped around the cable tray 31 in the same position as the fixing band 33 to prevent the flame-retardant sheet 32 ​​from sagging into the cable tray.

[0013] A sensing tube 24 is provided within the cable tray 31. The sensing tube 24 may or may not be in contact with the cable. A copper pipe 25 for discharging a fire extinguishing agent is provided within the cable tray 31. A spray nozzle 34 for discharging a fire extinguishing agent is attached to the copper pipe 25 for discharging a fire extinguishing agent.

[0014] Fire extinguishing agent storage container 1 is filled with, for example, a halide fire extinguishing agent, FK-5-1-12. This agent is pressurized by nitrogen inside fire extinguishing agent storage container 1. This nitrogen is supplied to sensing tube 24 via sensing tube pressure switch 4. When supplying nitrogen into sensing tube 24 during installation, if nitrogen is introduced from fire extinguishing agent storage container 1, the amount of nitrogen inside fire extinguishing agent storage container 1 will decrease, so nitrogen may be filled into sensing tube 24 from outside fire extinguishing agent storage container 1.

[0015] When the heat of the fire melts the sensing tube 24, the pressure inside the sensing tube 24 drops.

[0016] When the pressure in the sensing tube 24 drops, the container valve 19 operates, and the extinguishing agent (FK-5-1-12) is discharged from the extinguishing agent discharge nozzle 34 in the cable tray 31 through the extinguishing agent discharge copper pipe 25.

[0017] When the pressure inside the sensing tube 24 drops, the sensing tube pressure switch 4 is activated and a signal is sent out.

[0018] When the pressure inside the fire extinguishing agent storage container 1 drops, the storage container pressure switch 3 is activated and a signal is sent out.

[0019] 2 is a front view of the container support 20 according to the first embodiment. FIG. 4 is a plan view of the container support 20 as viewed from the direction indicated by arrow III. FIG. 4 is a bottom view of the container support 20 as viewed from the direction indicated by arrow IV in FIG. 2. FIG. 5 is a side view of the container support 20 as viewed from the direction indicated by arrow V in FIG. 2. FIG. 6 is a cross-sectional view of the container support 20 taken along line VI-VI in FIG. 2. FIG. 7 is a front view of the display unit 14 shown in FIG. 1.

[0020] The cable tray fire extinguishing system 60 also has the ability to "discharge extinguishing agent with an electrical activation signal" and "monitor pressure." The pressure status is displayed on-site and transmitted to a monitoring room or similar location. The monitoring room or similar location has a panel that consolidates information, and the same number of panels (pressure monitoring control panels) that display the pressure status are required on-site as the number of container supports 20 (cylinder racks). To reduce the on-site construction burden, a display unit 14 serving as a pressure monitoring control panel is attached to the side of the container support 20 in advance. If the container support 20 and the display unit 14 were separated, the installation of the display unit 14 and the installation of wiring / electrical conduit from the display unit 14 to the container support 20 would be required separately. Earthquake resistance verification would also be required for construction. By integrating these functions, the on-site construction burden is reduced.

[0021] The container support body 15 is mainly made of steel square pipes and angle bars. The container support body 15 is made by welding steel materials. It has sufficient strength to hold multiple fire extinguishant storage containers 1.

[0022] The fire extinguishant storage container 1, which is constituted by a cylinder, stores a liquid fire extinguishant such as FK-5-1-12. In this embodiment, three fire extinguishant storage containers 1 are provided in parallel, but more or fewer fire extinguishant storage containers 1 may be provided.

[0023] The container valve of the fire extinguishant storage container 1 is connected to a copper pipe connection joint 6 by a flexible tube 2. As a result, the fire extinguishant in the fire extinguishant storage container 1 is supplied to the copper pipe connection joint 6 via the flexible tube 2.

[0024] The pressure inside the fire extinguishing agent storage container 1 is constantly monitored, and when this pressure drops, the storage container pressure switch 3 is activated and a signal is sent to a monitoring room or the like.

[0025] The pressure inside the sensing tube 24 is constantly monitored, and when this pressure drops, the sensing tube pressure switch 4 is activated and a signal is sent to a monitoring room or the like.

[0026] Based on these communication signals, a person in a monitoring room or the like can recognize that a fire has occurred. The container fixing bracket 5 engages with the container support body 15 to hold the fire extinguishant storage container 1. A thread is provided on the outer peripheral surface of the end of the container fixing bracket 5, and the container fixing bracket 5 can be fixed to the container support body 15 by screwing a nut onto this thread.

[0027] The copper pipe connection joint 6 is attached to the container support body 15. The copper pipe connection joint 6 is interposed between the flexible tube 2 and the extinguishing agent discharge copper pipe 25 and is airtightly connected to them. The extinguishing agent flows through the copper pipe connection joint 6.

[0028] A sensing tube 24 is connected to the sensing tube filling joint 11. Nitrogen is supplied to the sensing tube filling joint 11 from the fire extinguishing agent storage container 1. The sensing tube filling joint 11 is attached to the container support body 15.

[0029] The sensing tube solenoid valve 12 is attached to the container support body 15. The sensing tube pressure reduction pressure switch 13 is connected to the sensing tube solenoid valve. The nitrogen gas (fluid) in the fire extinguishing agent storage container 1 is sent to the sensing tube 24 via the sensing tube pressure reduction pressure switch 13, the sensing tube solenoid valve 12, and the sensing tube filling joint 11.

[0030] A display unit 14 is attached to the container support body 15. The display unit is a remote activation / pressure monitoring system control panel. The display unit 14 displays whether the pressure in each of the multiple sensing tubes 24 is normal or has dropped. Display item 14a in FIG. 7 shows, for example, the pressure of the sensing tube. The display unit 14 also displays whether the pressure in each of the multiple fire extinguishant storage containers 1 is normal and the fire extinguishant (FK-5-1-12) can be released.

[0031] The container support 20 comprises a container support body 15 that holds the fire extinguishing agent storage container 1, which supplies fluid to a sensing tube 24 that melts due to the heat of a fire, and a display unit 14 provided on the container support body 15 that displays at least one of the pressure inside the fire extinguishing agent storage container 1 and the pressure inside the sensing tube 24 that is supplied from the fire extinguishing agent storage container 1.

[0032] In the cable tray fire extinguishing equipment 60 configured in this manner, the display unit 14 is attached to the container support body 15, so they can be installed at the same time, reducing construction costs.

[0033] (Embodiment 2) 8 is a schematic diagram of a container support 20 according to embodiment 2. In container support 20 according to embodiment 2, a fire extinguishant storage container 1 is sandwiched between a pair of container restraint devices 105, 106. Through holes are provided in container restraint devices 105, 106, and fixing bars 107 are inserted into the through holes.

[0034] Both ends of the fixing bar 107 are threaded, and each end is inserted into a through-hole. Nuts 108 are threadedly fitted to both ends. The nuts abut against the container restraint devices 105, 106, preventing the pair of container restraint devices 105, 106 from moving away from each other.

[0035] The distance between the container restraint devices 105, 106 can be reduced by reducing the distance between the nuts 108 on both ends of the fixing bar 107, and thus the fire extinguishant storage container 1 can be positioned by the container restraint devices 105, 106. The container restraint devices 105, 106 are each held by the container support body 15.

[0036] In a cross section perpendicular to the longitudinal direction of the plurality of fire extinguishing agent storage containers 1, fixing bars 107 are provided on both ends in the direction in which the plurality of fire extinguishing agent storage containers 1 are lined up. Container restraint devices 105, 106 are arranged in the space surrounded by the container support body 15 shown in Figures 2 to 6.

[0037] Since the fixing bar 107 has a linear shape between the nuts 108 at both ends, the fixing bar 107 is less likely to deform even when a large tensile stress is applied to the fixing bar 107. As a result, the earthquake resistance of the container support 20 can be improved.

[0038] That is, the container support 20 comprises a pair of container restraint devices 105, 106 that hold the fire extinguishant storage container 1, and a fixing bar 107 which is a metal rod-shaped member that is interposed between the pair of container restraint devices 105, 106 to prevent the pair of container restraint devices 105, 106 from moving away from each other and that is subjected to tensile stress between the pair of container restraint devices 105, 106.

[0039] The portion of the fixing bar 107 that is subjected to tensile stress between the pair of container restraining devices 105 and 106 has a linear shape.

[0040] Fig. 9 is a schematic diagram of a container support 20 of a comparative example. Fig. 10 is a cross-sectional view taken along line XX in Fig. 9. Fig. 11 is a cross-sectional view of a deformed fixing bar 107.

[0041] As shown in these figures, tip 109 of fixing bar 107 according to the comparative example is bent. The bent portion is inserted into through-hole 105h of container restraint device 105. Therefore, when a large force is applied to fixing bar 107, bent tip 109 may be deformed and tip 109 may come out of through-hole 105h. The structure of Figure 8 does not cause such a problem.

[0042] (Embodiment 3) FIG. 12 is a schematic diagram of a container support 20 according to a third embodiment. As shown in FIG. 12, a container restraint device 105 according to the third embodiment and the fire extinguishant storage container 1 come into contact at points 1a and 1b. A container restraint device 106 and the fire extinguishant storage container 1 come into contact at points 1c and 1d. Because the fire extinguishant storage container 1 is held down at four points in this manner, the fire extinguishant storage container 1 is restrained in the front-to-back and left-to-right directions. As a result, the rigidity of the container support main body 15 is improved. The tightening control of the container restraint devices 105 and 106 does not significantly affect the rigidity of the container support main body 15. The fire extinguishant storage container 1 is cylindrical, and is filled with fire extinguishant.

[0043] Fig. 13 is a schematic diagram of a container support 20 of a comparative example. As shown in Fig. 13, the container restraint device 105 according to the comparative example and the fire extinguishant storage container 1 come into contact at point 1a. The container restraint device 106 and the fire extinguishant storage container 1 come into contact at point 1c. Because the fire extinguishant storage container 1 is held down at two points in this way, the fire extinguishant storage container 1 is restrained in the front-to-back direction but can move left and right. This results in a poor rigidity of the container support main body 15. Furthermore, the tightening control of the container restraint devices 105, 106 affects the rigidity of the container support main body 15.

[0044] The container support 20 includes a pair of container restraint devices 105, 106 that hold the fire extinguishant storage container 1, and at least one of the pair of container restraint devices 105, 106 contacts the fire extinguishant storage container 1 at two or more points in a cross section ( FIG. 12 ) perpendicular to the longitudinal direction of the fire extinguishant storage container 1. Preferably, both of the container restraint devices 105, 106 contact the fire extinguishant storage container 1 at two or more points in the cross section. If the container restraint devices 105, 106 contact the fire extinguishant storage container 1 at many points, the support of the fire extinguishant storage container 1 may become unstable, taking into account manufacturing errors (variations in outer diameter) of the fire extinguishant storage container 1. In contrast, the structure in FIG. 12 prevents the fire extinguishant storage container 1 from moving forward, backward, left, or right, so rigidity can be maintained with weaker steel.

[0045] (Fourth embodiment) Fig. 14 is a schematic diagram of a cable tray fire extinguishing system 60 according to embodiment 4. As shown in Fig. 14, the cable tray fire extinguishing system 60 according to embodiment 4 is provided with pipes 202, 204, 206, a nitrogen cylinder 201, a pressure reducing valve 203, and an excess flow valve 205. In this embodiment, it is not necessary to provide a display unit 14 on the container support body 15.

[0046] In this embodiment, the pressure in the sensing tube 24 is kept constant using a nitrogen cylinder 201 and a pressure reducing valve 203. Even if a small amount of nitrogen gas leaks from the sensing tube 24 over a long period of time, it is possible to add pressure using nitrogen gas from the nitrogen cylinder 201.

[0047] If the sensing tube 24 melts, the excess flow valve 205 operates to stop the supply of nitrogen gas to the sensing tube 24 and open the container valve.

[0048] The cable tray fire extinguishing system 60 includes a sensing tube 24 that melts due to the heat of a fire, a first fire extinguishing agent storage container 1 that supplies fluid to the sensing tube 24, and a It is equipped with a nitrogen cylinder 201 as a second container for supplying fluid, and an excess flow prevention valve 205 that is provided between the sensing tube 24 and the nitrogen cylinder 201 and that cuts off or reduces the flow of gas when the flow exceeds a predetermined value.

[0049] (Embodiment 5) Fig. 15 is a schematic diagram of a cable tray fire extinguishing system 60 according to a fifth embodiment. As shown in Fig. 15, in the cable tray fire extinguishing system 60 according to the fifth embodiment, a pipe 206 is connected to each of a plurality of sensing tubes 24, and nitrogen gas is supplied from each pipe 206. A check valve 209 is provided in each pipe 206. By providing the check valve 209, the pressure inside the sensing tube 24 connected to the fire extinguishing agent storage container 1 where there is no fire does not decrease, so that fire extinguishing agent is not released unnecessarily (fire extinguishing agent is not released in areas where there is no fire), and it is possible to release fire extinguishing agent only where there is a fire.

[0050] In the cable tray fire extinguishing system 60 configured in this manner, nitrogen gas can be supplied to a plurality of sensing tubes 24 from a single nitrogen cylinder 201, thereby reducing the cost of the device.

[0051] (Embodiment 6) Fig. 16 is a schematic diagram of container support 20 according to embodiment 6. Fig. 17 is a schematic diagram of unit 300 in which nitrogen cylinder 201, pressure reducing valve 203, and excess flow valve 205 are integrated. As shown in Figs. 16 and 17, unit 300 is attached to container support 20 according to embodiment 6. By integrating unit 300 with container support 20, installation and construction of unit 300 are easier than when unit 300 is separate from container support 20. [Appendix 1] a container support body for holding a fire extinguishing agent storage container that supplies fluid to a sensing tube that melts due to the heat of a fire; a display unit provided on the container support body for displaying at least one of the pressure inside the fire extinguishant storage container and the pressure inside the sensing tube supplied from the fire extinguishant storage container. [Appendix 2] a pair of container restraint devices for holding a fire extinguishing agent storage container; a metal rod-shaped member interposed between the pair of container restraint devices to prevent the pair of container restraint devices from moving away from each other and subjected to tensile stress between the pair of container restraint devices; A container support tool, wherein the portion of the rod-shaped member that is subjected to tensile stress between the pair of container restraint devices is linear. [Appendix 3] A container support device comprising a pair of container restraint devices for holding a fire extinguishing agent storage container, wherein at least one of the pair of container restraint devices contacts the fire extinguishing agent storage container at two or more points in a cross section perpendicular to the longitudinal direction of the fire extinguishing agent storage container. [Appendix 4] A sensing tube that melts due to the heat of a fire; a first extinguishing agent storage vessel for supplying fluid to the sensing tube; a second container for supplying fluid to the sensing tube; and an excess flow prevention valve disposed between the sensing tube and the second container that cuts off or reduces the flow of fluid when the flow exceeds a predetermined value. [Appendix 5] 5. The fire extinguishing system of claim 4, wherein the second container supplies fluid to a plurality of the sensing tubes. [Appendix 6] a unit having the second vessel and the excess flow prevention device attached; a container support for holding the first fire extinguishing agent storage container.

[0052] The embodiments and examples disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0053] 1 Fire extinguishing agent storage container, 1a, 1b, 1c, 1d points, 2 Flexible tube, 3 Pressure switch for storage container, 4 Pressure switch for sensing tube, 5 Container fixing bracket, 6 Copper pipe connection joint, 11 Sensing tube filling joint, 12 Solenoid valve for sensing tube, 13 Pressure switch for sensing tube pressure drop, 14 Display unit, 15 Container support body, 19 Container valve, 20 Container support, 24 Sensing tube, 25 Copper pipe for discharging fire extinguishing agent, 31 Cable tray, 32 Flame retardant sheet, 33 Fixing band, 34 Spray nozzle for discharging fire extinguishing agent, 60 Cable tray fire extinguishing system, 105, 106 Vessel restraint device, 105h Penetration hole, 107 Fixing bar, 108 nut, 109 tip, 201 nitrogen cylinder, 202, 204, 206 piping, 203 pressure reducing valve, 205 excess flow valve, 300 unit.

Claims

1. at least one sensing tube that melts due to the heat of a fire; at least one first extinguishing agent storage vessel supplying fluid to said sensing tube; a second container for supplying fluid to the sensing tube; an excess flow valve disposed between the sensing tube and the second container; when the flow of fluid through the excess flow valve exceeds a predetermined value, the excess flow valve shuts off or reduces the flow; When the sensing tube melts, the excess flow prevention valve is activated, the supply of fluid to the sensing tube is stopped, the container valve of the first fire extinguishing agent storage container is opened, and the fire extinguishing agent is released from the fire extinguishing agent release nozzle.

2. The fire suppression system of claim 1 , wherein the second container supplies fluid to a plurality of the sensing tubes.

3. The fire extinguishing system according to claim 2 , wherein each of the plurality of sensing tubes is connected to each of the plurality of first extinguishing agent storage containers.

4. 4. The fire extinguishing system according to claim 2 or 3, further comprising a check valve provided between the excess flow prevention valve and each of the plurality of sensing tubes, the check valve allowing fluid to flow from the excess flow prevention valve to each of the plurality of sensing tubes but preventing fluid from flowing in the reverse direction.

5. a container support for holding at least one first fire extinguishing agent storage container that supplies fluid to a sensing tube that melts due to the heat of a fire, A fire suppression unit is attached to the container support, the fire suppression unit having a second container that supplies fluid to the sensing tube and an excess flow valve disposed between the sensing tube and the second container.

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