Disaster prevention equipment

Abstract

To provide disaster prevention equipment that allows for efficient installation. [Solution] The fire prevention equipment of the embodiment includes at least one of a fire detection system and a fire extinguishing system to prevent damage from a fire occurring in a first space. At least one of the fire detection system and the fire extinguishing system is installed in a second space which is larger than the first space. The fire detection system is configured to detect smoke from a fire occurring in the first space via a fire detection system connection pipe that connects the first space and the second space. The fire extinguishing system is configured to extinguish a fire that occurs in the first space by supplying fire extinguishing gas to the first space via a fire extinguishing system pipe that connects the first space and the second space.

Description

Technical Field

[0001] Embodiments of the present invention relate to disaster prevention equipment.

Background Art

[0002] The new regulatory standards enforced for nuclear power plants require fire protection measures also for the interior of the free-access floor of the main control room and the like.

[0003] For this reason, for example, it may be necessary to provide a fire-resistant partition wall in the space located below the free-access floor, and dispose disaster prevention equipment such as fire detection equipment and fire extinguishing equipment.

Prior Art Literature

Patent Literature

[0004]

Patent Literature 1

Summary of the Invention

Problem to be Solved by the Invention

[0005] Figure 4 is a diagram schematically showing an example of disaster prevention equipment according to a related art.

[0006] As shown in Figure 4, the central control room has a cable laying space SP11 located below a free-access floor 10b formed, for example, by H-beams. The cable laying space SP11 is located in a structure 10a made of concrete, for example, and cables 11 are laid there. Fire detection equipment 20a and fire extinguishing equipment 22 are installed in the cable laying space SP11. The fire detection equipment 20a and fire extinguishing equipment 22 are installed in the cable laying space SP11 to prevent damage from fires occurring in the cable laying space SP11. Here, the fire detection equipment 20a is installed to detect smoke from a fire that occurs in the cable laying space SP11. The fire extinguishing equipment 22 is configured to include a nozzle that supplies fire extinguishing gas to the cable laying space SP11 via fire extinguishing equipment piping H22 in order to extinguish fires that occur in the cable laying space SP11.

[0007] In addition, the central control room has a control panel 100 installed, which is electrically connected to cable 11. A fire detection device 20b is installed in the internal control panel space SP10 located inside the control panel 100. Here, the fire detection device 20b is installed to detect smoke caused by a fire that occurs in the internal control panel space SP10.

[0008] However, the cable laying space SP11 and the control panel interior space SP10 are narrow spaces.

[0009] Therefore, when the installation of fire detection equipment 20a, etc., is carried out in a narrow space such as the cable laying space SP11, there is a risk of damage to various parts.

[0010] In particular, when welding the fire extinguishing equipment piping H22 in a narrow cable laying space SP11, it may be difficult to enhance the safety of the work. Furthermore, since it becomes difficult to relocate the welded fire extinguishing equipment piping H22, the flexibility of layout changes may be reduced. In addition, if the design of cable 11 is changed, the design of the fire detection equipment 20a, fire extinguishing equipment 22, and fire extinguishing equipment piping H22 may also need to be changed, potentially prolonging the work process.

[0011] Due to the circumstances described above, it is not easy to efficiently install the fire detection equipment 20a and fire extinguishing equipment 22 in the cable laying space SP11. Similarly, it is not easy to efficiently install the fire detection equipment 20b in the control panel internal space SP10. Furthermore, if the space available for placing fire prevention equipment such as the fire detection equipment 20a is limited, it is not easy to efficiently install the fire prevention equipment.

[0012] Therefore, the problem that the present invention aims to solve is to provide disaster prevention equipment that can be installed efficiently. [Means for solving the problem]

[0013] The fire prevention equipment of this embodiment includes at least one of a fire detection system and a fire extinguishing system to prevent damage from a fire occurring in a first space. The fire detection system is provided to detect smoke from a fire occurring in the first space. The fire extinguishing system is provided to supply fire extinguishing gas to extinguish a fire that occurs in the first space. At least one of the fire detection system and the fire extinguishing system is installed in a second space which is larger than the first space. The fire detection system is configured to detect smoke from a fire occurring in the first space via a fire detection system connection pipe that connects the first space and the second space. The fire extinguishing system is configured to extinguish a fire that occurs in the first space by supplying fire extinguishing gas to the first space via a fire extinguishing system piping that connects the first space and the second space. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide disaster prevention equipment that can be installed efficiently. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1 is a schematic diagram showing a disaster prevention system according to an embodiment. [Figure 2] Figure 2 is a schematic diagram showing a disaster prevention system according to a modified example 1 of the embodiment. [Figure 3] Figure 3 is a schematic diagram showing a disaster prevention system according to a modified example 2 of the embodiment. [Figure 4] Figure 4 is a schematic diagram showing an example of disaster prevention equipment related to the relevant technology. [Modes for carrying out the invention]

[0016] [A] Configuration Figure 1 is a schematic diagram showing a disaster prevention system according to an embodiment.

[0017] As shown in Figure 1, the disaster prevention equipment of the present embodiment, similarly to the case of the related art (see Figure 4), includes fire detection equipment 20a, fire extinguishing equipment 22, and fire detection equipment 20b, for preventing damage caused by fires occurring in a cable laying space SP11 (a first space) and a control panel internal space SP10 (a first space). The fire detection equipment 20a is provided to detect smoke from a fire that has occurred in the cable laying space SP11. The fire extinguishing equipment 22 is provided to extinguish fire from a fire that has occurred in the cable laying space SP11. The fire detection equipment 20b is provided to detect smoke from a fire that has occurred in the control panel internal space SP10.

[0018] However, in the present embodiment, the locations where the fire detection equipment 20a, the fire extinguishing equipment 22, and the fire detection equipment 20b are installed are different from those in the case of the related art (see Figure 4). Except for this point and related points, the present embodiment is the same as the case of the above related art. Therefore, descriptions of overlapping matters will be omitted as appropriate.

[0019] In the present embodiment, unlike the case of the related art (see Figure 4), the fire detection equipment 20a and the fire extinguishing equipment 22 are not installed in the cable laying space SP11, but are installed in a lower floor space SP20 (a second space). Unlike the case of the related art (see Figure 4), the fire detection equipment 20b is not installed in the control panel internal space SP10, but is installed in the lower floor space SP20 which is larger than the control panel internal space SP10.

[0020] The lower floor space SP20 is a space on the lower floor located below the cable laying space SP11 and the control panel internal space SP10, and is provided, for example, on a frame 10a formed of concrete, and is a space larger than the cable laying space SP11 and the control panel internal space SP10.

[0021] In the present embodiment, the fire detection equipment 20a includes, for example, a suction-type smoke fire detector, and is configured to detect smoke generated by a fire in the cable laying space SP11 via a fire detection equipment connection pipe H20a that communicates between the cable laying space SP11 and the lower-floor space SP20. In this configuration, a fire detection equipment extension pipe EH20a is interposed between the fire detection equipment 20a and the fire detection equipment connection pipe H20a, so that the fire detection equipment connection pipe H20a is extended. The fire detection equipment connection pipe H20a and the fire detection equipment extension pipe EH20a are, for example, fixed pipes or flexible pipes.

[0022] In the present embodiment, the fire extinguishing equipment 22 includes, for example, an inert gas fire extinguisher, and is configured to extinguish fire caused by a fire occurring in the cable laying space SP11 by supplying inert gas as fire extinguishing gas to the cable laying space SP11 via a fire extinguishing equipment pipe H22 that communicates between the cable laying space SP11 and the lower-floor space SP20. In this configuration, a fire extinguishing equipment pipe extension pipe EH22 is interposed between the fire extinguishing equipment 22 and the fire extinguishing equipment pipe H22, so that the fire extinguishing equipment pipe H22 is extended. The fire extinguishing equipment pipe H22 and the fire extinguishing equipment pipe extension pipe EH22 are, for example, fixed pipes or flexible pipes.

[0023] In the present embodiment, the fire detection equipment 20b includes, for example, a suction-type smoke fire detector, and is configured to detect smoke generated by a fire in the control panel internal space SP10 via a fire detection equipment connection pipe H20b that communicates between the control panel internal space SP10 and the lower-floor space SP20. In this configuration, a fire detection equipment extension pipe EH20b is interposed between the fire detection equipment 20b and the fire detection equipment connection pipe H20b, so that the fire detection equipment connection pipe H20b is extended. Furthermore, a fire detection equipment extension pipe EH20b is also installed at the other end of the fire detection equipment connection pipe H20b, which is located on the opposite side to the one end where the fire detection equipment 20b is positioned, so that the fire detection equipment connection pipe H20b is extended. The fire detection equipment connection pipe H20b and the fire detection equipment extension pipe EH20b are, for example, fixed pipes or flexible pipes.

[0024] In this embodiment, the fire extinguishing system 22 is configured to supply fire extinguishing gas based, for example, on the detection results of the fire detection system 20a. When the fire detection system 20a detects smoke from a fire, the fire extinguishing system 22 supplies fire extinguishing gas from the lower floor space SP20 to the cable laying space SP11. Although not shown in the figures, the fire extinguishing system 22 may also be configured to supply fire extinguishing gas from the lower floor space SP20 to the control panel internal space SP10 when the fire detection system 20b detects smoke from a fire.

[0025] In addition to the above, the fire prevention equipment of this embodiment includes a connecting pipe H30. The connecting pipe H30 is installed to connect the cable laying space SP11 (first space) and the lower floor space SP20 (second space). The connecting pipe H30 is, for example, a fixed pipe or a flexible pipe. One end of the connecting pipe H30 is provided in the cable laying space SP11 where the fire detection equipment 20a and fire extinguishing equipment 22 are not installed, and the other end is sealed with a cap 30. The cap 30 is fire-resistant.

[0026] [B] Summary As described above, in the fire prevention equipment of this embodiment, the fire detection equipment 20a, the fire extinguishing equipment 22, and the fire detection equipment 20b are installed in the lower floor space SP20. The fire detection equipment 20a is configured to detect smoke from a fire that occurs in the cable laying space SP11 via the fire detection equipment connection pipe H20a that connects the cable laying space SP11 and the lower floor space SP20. The fire extinguishing equipment 22 is configured to extinguish a fire that occurs in the cable laying space SP11 by supplying fire extinguishing gas to the cable laying space SP11 via the fire extinguishing equipment pipe H22 that connects the cable laying space SP11 and the lower floor space SP20. The fire detection equipment 20b is configured to detect smoke from a fire that occurs in the control panel internal space SP10 via the fire detection equipment connection pipe H20b that connects the control panel internal space SP10 and the lower floor space SP20.

[0027] The lower floor space SP20 (second space) is larger than the cable laying space SP11 (first space) and the control panel interior space SP10 (first space). Therefore, in this embodiment, the work of installing the fire detection equipment 20a, etc., is not performed in the narrow space of the cable laying space SP11, etc., thus reducing the risk of damage to various parts.

[0028] Furthermore, in this embodiment, since it is not necessary to weld the fire extinguishing equipment piping H22 in the cable laying space SP11, it is possible to improve the safety of the work and increase the flexibility of layout changes. In addition, the installation work of the cable 11 and the installation work of the fire detection equipment 20a, fire extinguishing equipment 22, etc. can be carried out in parallel. Moreover, even if the design of the cable 11 is changed, it is not necessary to change the design of the fire detection equipment 20a, fire extinguishing equipment 22, etc., so it is possible to prevent the work process from being prolonged.

[0029] Therefore, in this embodiment, the installation work for fire prevention equipment such as the fire detection equipment 20a can be carried out efficiently.

[0030] In this embodiment, a connecting pipe H30 is included that connects the cable laying space SP11 and the lower floor space SP20, making it easy to accommodate changes in the arrangement of, for example, the fire detection equipment 20a and the fire extinguishing equipment 22. Furthermore, the other end of the connecting pipe H30 is sealed with a cap 30. Therefore, even if there is a connecting pipe H30 that does not have the fire detection equipment 20a and the fire extinguishing equipment 22 installed, the connecting pipe H30 is sealed with a cap 30, thus preventing the spread of fire caused by the connecting pipe H30.

[0031] [C] Variant [C-1] Variation 1 Figure 2 is a schematic diagram showing a disaster prevention system according to a modified example 1 of the embodiment.

[0032] As shown in Figure 2, the fire prevention equipment of this modified example is equipped with fire detection equipment 20a and fire detection equipment 20b, similar to the embodiment described above (see Figure 1). However, the fire prevention equipment of this modified example does not include fire extinguishing equipment 22. Thus, the fire prevention equipment does not necessarily need to include fire extinguishing equipment.

[0033] [C-2] Variation 2 Figure 3 is a schematic diagram showing a disaster prevention system according to a modified example 2 of the embodiment.

[0034] As shown in Figure 3, the fire prevention equipment of this modified example is equipped with a fire extinguishing system 22, similar to the embodiment described above (see Figure 1). However, the fire prevention equipment of this modified example is not equipped with fire detection equipment 20a and fire detection equipment 20b. Thus, the fire prevention equipment does not need to have fire detection equipment. The same effects as those of the embodiment described above can be obtained in this modified example as well.

[0035] [C-3] Other variations In the above embodiment, the example shows that the fire detection equipment 20a, fire extinguishing equipment 22, and fire detection equipment 20b are installed in the lower floor space SP20 located below the cable laying space SP11 and the control panel internal space SP10, but the example is not limited to this. The fire detection equipment 20a, fire extinguishing equipment 22, and fire detection equipment 20b may be installed in a space other than the lower floor space SP20, as long as it is a space larger than the cable laying space SP11 and the control panel internal space SP10.

[0036] The fire prevention equipment of the above embodiment includes, but is not limited to, a fire detection equipment extension pipe EH20a, a fire extinguishing equipment extension pipe EH22, and a fire detection equipment extension pipe EH20b. If there is no need to extend the piping, the fire detection equipment extension pipe EH20a, the fire extinguishing equipment extension pipe EH22, and the fire detection equipment extension pipe EH20b may be omitted.

[0037] The fire prevention equipment in the above embodiment includes a connecting pipe H30, but is not limited to this. For example, if there is no need to accommodate changes in the arrangement of the fire detection equipment 20a and the fire extinguishing equipment 22, the connecting pipe H30 may be omitted. The same effects as in the above embodiment can be obtained in this modified example as well.

[0038] <Other> While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, modifications, and combinations are possible without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0039] 10a: Building frame, 10b: Free access floor, 11: Cable, 30: Cap, 100: Control panel, EH20a: Fire detection equipment extension piping, EH20b: Fire detection equipment extension piping, EH22: Fire extinguishing equipment piping extension piping, H20a: Fire detection equipment connection piping, H20b: Fire detection equipment connection piping, H22: Fire extinguishing equipment piping, H30: Connecting piping, SP10: Control panel interior space, SP11: Cable laying space, SP20: Lower floor space

Claims

1. A fire prevention device for preventing damage caused by a fire occurring in the first space, A fire detection system for detecting smoke from a fire occurring in the first space, Fire extinguishing equipment for supplying fire extinguishing gas to extinguish a fire caused by a fire in the aforementioned first space, Including at least one of the following, At least one of the fire detection equipment and the fire extinguishing equipment is installed in a second space that is larger than the first space. The fire detection equipment is configured to detect smoke from a fire occurring in the first space via fire detection equipment connection piping that connects the first space and the second space. The fire extinguishing system is configured to extinguish a fire caused by a fire occurring in the first space by supplying fire extinguishing gas to the first space through fire extinguishing system piping that connects the first space and the second space. Disaster prevention equipment.

2. The first space is located below the free-access floor of the central control room where the control panel is installed, and is a cable laying space where cables are laid. The disaster prevention equipment according to claim 1.

3. The first space is the internal space of a control panel located inside a control panel installed in the central control room. The disaster prevention equipment according to claim 1.

4. The fire detection equipment is further configured to detect smoke via fire detection equipment extension piping that extends the fire detection equipment connection piping. The fire extinguishing system is further configured to perform fire extinguishing via fire extinguishing system extension piping that extends the fire extinguishing system piping. The disaster prevention equipment according to claim 1.

5. A connecting pipe that connects the first space and the second space, A cap to seal the end of the aforementioned connecting pipe and including, The disaster prevention equipment according to claim 1.

6. Including both the fire detection equipment and the fire extinguishing equipment, Based on the detection results of the fire detection equipment, the fire extinguishing equipment is configured to supply fire extinguishing gas. The disaster prevention equipment according to claim 1.

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