Fire extinguishing equipment

Abstract

To provide fire extinguishing equipment capable of supplementing fire extinguishing ability of fire hydrant equipment that varies depending on a skill of an operator.SOLUTION: Fire extinguishing equipment includes: a first pipe; a pump for supplying fire extinguishing water to the first pipe; a hose to be connected to the first pipe; a second pipe branched from the first pipe; a fire extinguishing head attached to the second pipe; and a three-way valve switching a supply destination of the fire extinguishing water from the hose to the fire extinguishing head under prescribed conditions. The fire extinguishing equipment is characterized by discharging fire extinguishing water from the hose in response to opening operation of the hose, and discharging the fire extinguishing water from the fire extinguishing head under the prescribed conditions.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fire extinguishing system. [Background technology]

[0002] Fire hydrant systems are installed to protect people and equipment from fire. In some places, the Fire Service Act requires the installation of equipment that can be operated by a person. Various methods for improving the convenience of fire hydrant facilities have been proposed. For example, Patent Document 1 (JP 2021-132744 A) discloses a fire hydrant that can improve the ease of removing a nozzle fixed inside the fire hydrant. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-132744 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, fire hydrant equipment is operated by humans, and the fire extinguishing ability varies depending on the skill of the person operating it.

[0005] Therefore, an object of the present invention is to provide a fire extinguishing facility that can compensate for the fire extinguishing capability of a fire hydrant facility, which varies depending on the skill of the operator. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides: A first pipe; A pump for supplying fire extinguishing water to the first pipe; A hose connected to the first pipe; a second pipe branched from the first pipe; A fire extinguishing head attached to the second pipe; a three-way valve that switches the supply destination of the fire extinguishing water from the hose to the fire extinguishing head under a predetermined condition; The fire extinguishing water is discharged from the hose in response to an opening operation of the hose, Discharging the extinguishing water from the extinguishing head under the predetermined conditions; The present invention provides a fire extinguishing system characterized by the above.

[0007] In the fire extinguishing system of the present invention, it is preferable that the specified condition is the detection of a flame equal to or above a preset reference value, the detection of smoke or heat generated by a fire, the closing operation of the hose, or the passage of a specified time from the start of water discharge from the hose.

[0008] It is preferable that the fire extinguishing equipment of the present invention further comprises a third pipe branching off from the first pipe, and a water supply outlet connected to the third pipe and receiving a supply of fire extinguishing water from a second water source. Effect of the Invention

[0009] In the fire extinguishing system of the present invention, in addition to the manual spraying of water from a hose, water is sprayed from a fire extinguishing head, which makes it possible to supplement the fire extinguishing ability of a fire hydrant system, which varies depending on the skill of the operator. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic diagram of a fire extinguishing system 1 according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of a fire extinguishing system 10 according to a modified example of the first embodiment. [Diagram 3] 13 is an explanatory diagram of a water discharge range of a fire extinguishing head 7 according to a modified example. FIG. [Figure 4] FIG. 1 is a schematic diagram of a fire extinguishing system 21 according to a second embodiment of the present invention. [Diagram 5] FIG. 11 is a diagram showing a user U extinguishing a fire with a hose 25 in the second embodiment. [Figure 6] 11 is a diagram showing a schematic view of water being discharged from a fire extinguishing head 27 to a fire source F in the second embodiment. FIG. [Figure 7] FIG. 11 is a diagram showing a schematic diagram of a state in which extinguishing water W is supplied from a water source 32 through a water supply port 28 and discharged from a fire extinguishing head 27 to a source of fire F in the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Representative embodiments of the fire extinguishing system of the present invention will be described in detail below with reference to the drawings. Note that 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.

[0012] 1. Embodiment 1 A fire extinguishing system 1 according to a first embodiment will be described with reference to Figs. 1 to 3.

[0013] The fire extinguishing system 1 is preferably installed in a place where a fire hydrant system or a water discharge system is installed, such as, but not limited to, a factory, a warehouse, or a garbage disposal site. The fire extinguishing system 1 may be installed along a wall surface, or may be partially embedded in the wall surface. As shown in FIG. 1, the fire extinguishing system 1 includes pipes 2 and 3, a pump P, a hose 4, stop valves 5 and 6, and a fire extinguishing head 7.

[0014] The piping 2 (first piping) connects the water source 8 and the hose 4, and supplies the extinguishing water 9 in the water source 8 to the hose 4. Here, examples of the water source 8 include waterworks, wells, rivers, and the sea. Therefore, the extinguishing water 9 is assumed to be any water, such as tap water, well water, river water, and seawater, but may also be an aqueous solution (extinguishing liquid) containing a foam extinguishing agent, such as an aqueous film-forming foam extinguishing agent. In the latter case, a storage tank and mixer for the foam extinguishing agent may be connected to the piping 2. Moreover, the pipe 3 (second pipe) branches off from the pipe 2, and supplies the extinguishing water 9 supplied from the pipe 2 to the fire extinguishing head . Here, it is assumed that the upstream side (primary side) of the stop valves 5, 6 in the pipes 2, 3 is filled with fire extinguishing water 9 (closed type), but an open type may also be adopted.

[0015] The pump P pumps up fire extinguishing water 9 from a water source 8 such as a water tank, and supplies it to the piping 2. A filter for removing debris, dust, etc. may be provided at the end of the piping 2 where the water source 8 enters. The pump P starts upon receiving a signal indicating, for example, the opening operation of the stop valve 5, the opening operation of the hose 4, the detection of a flame, etc.

[0016] The hose 4 is connected to the pipe 2 and discharges the extinguishing water 9 from the nozzle 41. The hose 4 may be stored in a storage box (not shown) in a wound state. The hose 4 may also have an on-off valve (not shown) that can be operated by the user. The hose 4 and the nozzle 41 can be existing ones.

[0017] The stop valve 5 closes the piping 2. In other words, the stop valve 5 closes the flow path connected to the hose 4. Here, the stop valve 5 is provided on the downstream side (secondary side) of the branching portion A in the piping 2, and may be stored in a storage box (not shown). The stop valve 5 can be opened manually by a person.

[0018] The stop valve 6 is provided in the piping 3 to close the piping 3. It is preferable that the stop valve 6 automatically opens when the stop valve 5 opens. For example, the stop valve 6 may open based on an opening operation of the stop valve 6 or a detection signal indicating flow of water in the piping 2, or may open based on a flame detection signal.

[0019] The fire extinguishing head 7 is attached to the piping 3. The fire extinguishing head 7 is installed, for example, vertically above a storage box (not shown) for the hose 4, etc., and covers all or part of the fire compartment of the fire hydrant (see symbols P and Q in FIG. 3).

[0020] A plurality of fire extinguishing heads 7 may be provided. In this case, by making the orientation of each head different, it is possible to cover a wider fire extinguishing compartment. As the fire extinguishing head 7, various heads including, for example, an existing water discharge type head (sprinkler head), a water spray head, a foam head, etc. may be used. The fire extinguishing head 7 may also have a flame detection function. Alternatively, the detection of flame, smoke, heat, etc. may be performed by a separate sensor (not shown).

[0021] In this way, the fire extinguishing system 1 has both a function as a fire hydrant system and a function as a sprinkler system (or a foam fire extinguishing system, a water spray fire extinguishing system, etc.). That is, in this embodiment, in addition to the water spraying by a person using the hose 4, water is sprayed by the fire extinguishing head 7. Therefore, it is possible to compensate for the fire extinguishing ability of the fire hydrant system, which varies depending on the skill of the operator.

[0022] Next, an example of the operation of the fire extinguishing system 1 will be described. When a fire is detected by a person and the water stop valve 5 is opened, the pump P starts and water starts to be discharged from the hose 4. At the same time, the indicator light flashes and the bell rings.

[0023] The water stop valve 6 automatically opens, and water starts to be discharged from the fire extinguishing head 7. Alternatively, when a fire is detected by a flame detector, the water stop valve 6 automatically opens, and water starts to be discharged from the fire extinguishing head 7.

[0024] When a person confirms that the fire is extinguished and stops the water discharge (closes the water stop valve 5), the water stop valve 6 closes and the water discharge from the fire extinguishing head 7 stops.

[0025] That is, by branching pipe 3 from pipe 2 and installing a fire extinguishing head 7 on pipe 3, when a fire occurs, the fire can be automatically suppressed and extinguished.

[0026] 2. Embodiment 2 A fire extinguishing system 21 according to a second embodiment will be described with reference to Figs.

[0027] The fire extinguishing system 21 includes pipes 22-24, a pump P, a hose 25, a three-way valve 26, a fire extinguishing head 27, and a water supply port 28. The pipe 22 (corresponding to the first pipe) connects the water source 31 and the hose 25, and supplies the extinguishing water W in the water source 31 to the hose 25. The pipe 23 (corresponding to the second pipe) branches off from the pipe 22, and supplies the extinguishing water W supplied from the pipe 22 to the fire extinguishing head 27. The pump P pumps up fire extinguishing water W from a water source 31 such as a water tank and supplies it to the piping 22. The hose 25 is connected to the pipe 22, and discharges extinguishing water W from a nozzle (see FIG. 5). The hose 25 may include an on-off valve (not shown) that can be operated by a user U.

[0028] A three-way valve 26 is installed at the point where the pipe 23 branches off from the pipe 22. The three-way valve 26 allows either the hose 25 (fire hydrant) or the fire head 27 to be used, but prevents both from being used at the same time.

[0029] Specifically, the three-way valve 26 is set in advance to open the flow path on the pipe 22 side and close the flow path on the pipe 23 side. The three-way valve 26 switches the supply destination of the extinguishing water W from the hose 25 to the fire extinguishing head 27 under a predetermined condition. Examples of the predetermined condition include, but are not limited to, detection of a flame equal to or greater than a predetermined reference value, detection of smoke or heat generated by a fire, visual recognition of a flame by the user U, detection of a closing operation of the hose 25 by the user U, the passage of a predetermined time from the start of water discharge from the hose 25 by the user U, and the like.

[0030] The extinguishing head 27 is attached to the pipe 23. In this embodiment, the extinguishing head 27 is assumed to be a fixed type, but a movable head may also be used.

[0031] A pipe 24 (corresponding to a third pipe) may further branch off from the pipe 22. A water supply port 28 that receives a supply of extinguishing water W from a water source 32 such as a fire engine is connected to the pipe 24. Therefore, the fire extinguishing equipment 21 can receive a supply of extinguishing water W from the external water source 32. When the fire extinguishing system 21 is of a closed type, a pipe 29 connected to a water source 33 may be further branched off from the pipe 22. The water source 33 is used as a make-up water tank for filling the pipe 22 and the like with water.

[0032] Next, the operation of the fire extinguishing system 21 will be described. The fire extinguishing system 21 monitors the protected area by a flame detector (not shown). At this time, the three-way valve 26 is open to the hose 25 (fire hydrant) side.

[0033] When a user U discovers the occurrence of a fire and performs an operation to open an on-off valve (not shown) of the hose 25, the pump P starts to discharge water from the hose 25 to the source of the fire F (see FIG. 5).

[0034] Depending on the situation, the fire source F may not be extinguished by the water discharged from the hose 25. In this case, a flame detector (not shown) detects the flame and issues a detection signal. When the detection signal reaches the three-way valve 26 directly or indirectly via a control device (not shown), the three-way valve 26 switches to open the fire extinguishing head 27 side. Alternatively, if the user U gives up on extinguishing the fire with the hose 25 (fire hydrant), the user U switches the three-way valve 26 manually or automatically when the on-off valve of the hose 25 is closed, and evacuates to safety outside the building through the emergency exit G. As a result, the discharge of water from the hose 25 stops, and instead, the discharge of water from the fire extinguishing head 7 starts (see FIG. 6). The discharge of water from the fire extinguishing head 27 supports the evacuation of the user U and prevents the fire from spreading.

[0035] A water supply port 28 is provided in the piping system including the piping 22, so that the fire extinguishing equipment 21 can receive a supply of fire extinguishing water W from outside the equipment via another water source 32 such as a fire engine (see FIG. 7). This makes it possible to continue discharging water even if the water source 31 dries up.

[0036] According to this embodiment, the fire extinguishing equipment 21 also has a function as a water-discharging sprinkler in addition to a function as a fire hydrant equipment. That is, in addition to the user U discharging water from the hose 4, the fire extinguishing head 27 can also discharge water (see, for example, FIG. 5 and FIG. 6).

[0037] In the fire extinguishing equipment 21, fire extinguishing activities using the hose 25 and fire extinguishing activities using the fire extinguishing head 27 are alternative. That is, when the user U finishes the fire extinguishing activities using the hose 25 or when such fire extinguishing activities are not performed, the fire extinguishing activities using the fire extinguishing head 27 are performed. This allows the user U to evacuate from the emergency exit G while the fire extinguishing activities using the hose 25 are being performed and sufficient evacuation time can be secured. In other words, a person can evacuate while a large amount of water is being discharged from the fire extinguishing head 27 without taking the risk of using a fire hydrant.

[0038] In addition, since a water supply port 28 is provided, water can be supplied from a water source 32 such as a fire engine or a portable pump from outside the building even after the water source 31 has dried up. This makes it possible to continue spraying water from the fire extinguishing head 27.

[0039] The above describes a fire extinguishing system as one embodiment of the present invention, but the present invention is not limited to this. Various design modifications are possible as long as the technical concept of the present invention is included, and all such design modifications are included in the technical scope of the present invention.

[0040] For example, as shown in FIG. 2, a swivel unit 11 that can swivel the fire extinguishing head 7 may be employed, whereby the water discharge range P is expanded to, for example, a range Q (see FIG. 3). Furthermore, when a plurality of fire extinguishing heads 7 are provided, the swivel unit 11 may be provided to some of the fire extinguishing heads 7. Alternatively, by providing the swivel unit 11 to a plurality of fire extinguishing heads 7, the water discharge range P can be further expanded.

[0041] The components of the fire extinguishing system 1 according to the first embodiment and the components of the fire extinguishing system 21 according to the second embodiment can be used in appropriate combination or exchange, unless there is a particular hindrance.

[0042] Furthermore, for example, in the above embodiment, the case of a human being opening and closing the hose has been described, but these hose opening and closing operations may also be automatically controlled and detected by a control device including a computer. [Explanation of symbols]

[0043] 1,10,21 Fire extinguishing equipment 2,3,22,23,24,29 Piping 4,25 hose 5,6 Water stop valve 7,27 Fire extinguishing head 8,31,32,33 Water source 9.W Fire extinguishing water 26 Three-way valve 28 Water inlet

Claims

1. A first pipe; A pump for supplying fire extinguishing water to the first piping; A hose connected to the first pipe; a second pipe branched from the first pipe; A fire extinguishing head attached to the second pipe; a three-way valve that switches the supply destination of the fire extinguishing water from the hose to the fire extinguishing head under a predetermined condition; The fire extinguishing water is discharged from the hose in response to an opening operation of the hose, Discharging the extinguishing water from the extinguishing head under the predetermined conditions; A fire extinguishing system characterized by:

2. The predetermined condition is that a flame equal to or greater than a preset reference value is detected, smoke or heat generated by a fire is detected, the hose is closed, or a predetermined time has elapsed since the start of water discharge from the hose; The fire extinguishing system according to claim 1 .

3. a third pipe branched from the first pipe; a water supply port connected to the third pipe and receiving a supply of fire extinguishing water from a second water source; The fire extinguishing system according to claim 1, further comprising:

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