JPH0515963U - Fire extinguisher - Google Patents

Abstract

(57) [Abstract] [Purpose] In a fire extinguisher that shares one fire extinguishing agent supply source with multiple protection compartments, reduce the number of main pipes drawn from the fire extinguishing agent supply source, and at the same time, protect each The selection valve installed corresponding to the compartment is arranged outside the fire extinguishing agent supply source chamber so that the space of the chamber is not used as the installation space by the selection valve. [Configuration] In the main pipe 7 installed from the fire extinguishing agent supply source 1,
The distribution pipes 5 of the protection sections A, B, C, and D are branched and connected via a three-way valve 8 '. By switching the 3-way valve 8 ', the flow of the powdered drug to each of the protection zones A, B, C, D is selectively controlled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fire extinguisher in which a fire extinguishing agent supply source is shared by a plurality of protective compartments.

[0002]

[Prior Art]

 In a fire extinguisher device to which the Fire Service Act is applied, when a supply source of fire extinguishing agents is shared for multiple protection zones, a selection valve should be provided for each protection zone, and a selection valve should be provided in a place other than the protection zone, etc. Standards are set. In order to meet this standard, in this type of conventional fire extinguisher, a main pipe is installed separately from the room in which the supply of fire extinguishing agent is installed to each of the multiple protection compartments, and the main pipe is selected in each room. A valve was installed, the distribution pipe laid in each protection section was connected to the end of the main pipe, and the fire extinguishing agent discharging means such as a nozzle was provided in the distribution pipe. Such a conventional fire extinguisher will be described more specifically by taking a case where a protection section is set for each floor in a multi-story building as an example.

FIG. 3 exemplarily shows a fire extinguisher when a protective section is set for each floor in a multi-storey building such as a parking lot. In this fire extinguisher, a fire extinguisher supply source 1, such as a powder medicine storage container, a main valve 2 and a header 3 are installed in the fire extinguisher container chamber R, and the protection zones A, B, C, D on each floor are provided with districts. A distribution pipe 5 having a selection valve 51 and a branch pipe 52, and a fire extinguishing agent discharging means 6 such as a nozzle are installed. A main pipe 7 that connects the header 3 of the container chamber R and the distribution pipes 5 on each floor is provided for each of the protection sections A, B, C, D, and each main pipe 7 ... In, the floor selection valve 8 ... Is installed.

[0004]

[Problems to be solved by the device]

 In the above-described conventional fire extinguisher, the main pipes 7 provided for each of the protection sections A, B, C, D are pierced through the wall of the container chamber R. The number of protective compartments increases as the number of floors in the building increases, and the number of main pipes 7 increases accordingly. Therefore, the main pipes 7 that pass through the wall of one container room R are piped. Is very large. As a result, in the fire extinguisher of FIG. 3, a certain range of the wall of the container chamber R is occupied by the penetrating portion of the main pipe 7, and it can be said that the wall is virtually eliminated by opening the main pipe through hole. May be. Under such a situation, not only the wall strength will drop extremely, but also an unfavorable situation in which nearly half of the fire extinguishing equipment installation work will be occupied by the main pipe installation work. There is a long-awaited solution.

Further, since the selection valve 8 is installed in the container chamber R in each of all the main pipes 7 ..., many parts of the space in the container chamber R are used for the installation of the selection valve 8. It causes inconvenience such as being lost.

The above is a problem in the case where a protection section is set for each floor in a multi-story building. However, regarding a fire extinguisher when many protection sections are provided in a plane (for example, on the same floor). However, the basic configuration is the same as when considering FIG. 3 as a plane. Therefore, the fire extinguishing device for such a protective area set in a plane also has the same problems as described above.

The present invention has been made in view of the above problems, and can significantly reduce the number of main pipes as compared with the conventional one, and the selection valve installed in the main pipe can be installed outside the drug storage container chamber. It is an object of the present invention to provide a fire extinguisher which can be installed in a container so that the space of the container chamber is not used as the installation space for many selection valves.

[0008]

[Means for Solving the Problems]

 The fire-extinguishing device of the present invention includes a fire-extinguishing agent supply source that is shared by a plurality of protection compartments, a main pipe that is installed from the fire-extinguishing agent supply source, a fire-extinguishing agent discharge means installed in each protection compartment, and Each of the distribution pipes for each protection section branched from the main pipe and connected to the fire extinguishing agent discharging means, and a selection valve interposed at each connection point between each branch pipe and the main pipe, The selection valve has an inlet connected to the main pipe passage on the upper side of the selection valve, a first outlet connected to the main pipe passage on the lower side of the selection valve, and a second pipe connected to the branch pipe passage. It is a three-way valve having an outlet and switching means for selectively communicating the inlet with either the first outlet or the second outlet.

[0009]

[Action]

 With this configuration, since the distribution pipe is branched from one main pipe to each protection compartment, the number of main pipes is significantly smaller than the number of protection compartments. Nevertheless, since there is a 3-way selection valve at the connection between the main pipe and each distribution pipe, it is necessary to control each 3-way valve appropriately for each protection compartment. Fire extinguishing agents can be properly introduced.

[0010]

【Example】

 FIG. 1 is an explanatory view showing a fire extinguisher according to an embodiment of the present invention when a protective compartment is set for each floor in a multi-storey building such as a parking lot, which is shown in FIG. It corresponds to. In this embodiment, a fire extinguishing agent container chamber R is provided with a fire extinguishing agent supply source 1 such as a powdered medicine storage container, a main valve 2, and a fire extinguishing agent transport pipe 3 ', and protective compartments A, B, C, D on each floor. In this area, a distribution pipe 5 having a district selection valve 51 and a branch pipe 52, and a fire extinguishing agent discharging means 6 such as a nozzle are installed. A main pipe 7 is provided to connect the fire extinguishing agent transport pipe 3 ′ in the container room R and the distribution pipes 5 on each floor. Further, a level selection valve 8'comprising a three-way valve is interposed at each branch connection point of the distribution pipes 5 ... In the protective sections A, B, C and the main pipe 7. The three-way valve adopted in the floor selection valve 8'is an inlet a that communicates with the main pipe passage on the upper hand side of the selection valve 8'and a first passage that communicates with the main pipe passage on the lower hand side of the selection valve. The outlet b, the second outlet c communicated with the distribution pipe passage, and the switching means (switching ball valve) d for selectively communicating the inlet a with either the first outlet b or the second outlet c. It has. The floor selection valve 8'is installed outside the container chamber R.

With this configuration, in a normal time when no fire has occurred in any of the protection zones A, B, C, D, the inlet a of each floor selection valve 8 '... It communicates with the outlet b. Then, for example, when a fire is detected in the protection section D on the uppermost floor, the main valve 2 is opened and the powdered medicine is supplied from the fire extinguishing agent supply source 1 to the transport pipe 3 ′, the main pipe 7 and the protection section A. Corresponding floor selection valve 8 ', its lower main pipe 7, protective compartment B corresponding floor selection valve 8', its lower main pipe 7, protective compartment C corresponding floor selection valve 8 ', its lower side It is pressure-fed through the main pipe 7 in this order, is sent from the distribution pipe 5 of the protection section D to the area selected by the area selection valve 51, and is discharged from the fire extinguishing agent discharging means 6.

When a fire is detected in the protection zone A on the lowest floor, the main valve 2 opens and the floor selection valve 8'corresponding to the protection zone A is set to A'in FIG. The switching is performed as shown in FIG. 3 and the inlet 2 is communicated with the second outlet c by the switching means d. As a result, the powdered medicine is pumped from the fire extinguishing agent supply source 1 through the main valve 2, the transport pipe 3 ′, the main pipe 7, the floor selection valve 8 ′ corresponding to the protection section A, and the distribution pipe 5 of the protection section A, It is sent to the area selected by the area selection valve 51 of the protection section A, and is discharged from the fire extinguishing agent discharging means 6 in that area.

Similarly, when the occurrence of a fire in the protection section B or C is detected, the main valve 2 opens and the floor selection valve 8'corresponding to the protection section of the hierarchy in which the fire has occurred is opened. As shown by B'and C'in Fig. 1, respectively, the powder medicine is pumped to the distribution pipe of the protected area where the fire occurred, and the area is selected by the area selection valve of that area. It is sent and discharged from the fire extinguishing agent discharging means 6.

FIG. 2 illustrates a fire extinguisher according to an embodiment of the present invention where a large number of protective compartments are provided in a plane. In this embodiment, the fire extinguishing agent container chamber R is provided with a fire extinguishing agent supply source 1, such as two systems of powder medicine storing container V1 and high pressure nitrogen container V2 for pressure feeding powder medicine, a main valve 2, and a fire extinguishing agent transport pipe 3 ' Of the protection sections A, B, C, D, E, F, A, C, E belong to one system, and the other protection sections B, D, F belong to the other system. A distribution pipe 5 and a fire extinguishing agent discharging means 6 such as a nozzle are installed in each of the protection sections A, B, C, D, E and F. A main pipe 7 is provided for connecting the fire extinguishing agent transport pipe 3'in the container room R 1 to the distribution pipes 5 on each floor, and the distribution pipes 5 for the protection sections A, B, C, D, E, F, and A partition selection valve 8 ″ consisting of a three-way valve is interposed at each branch connection point with the main pipe 7. The three-way valve adopted in this partition selection valve 8 ″ is described in FIG. A three-way valve with the same structure as the one used is used.

With this configuration, during normal times when no fire has occurred in any of the protection compartments A, B, C, D, E, F, the inlet a of each compartment selection valve 8 ″ ... Is connected to the first outlet b. When a fire is detected in the protective compartment E, the main valve 2 of the first system is opened and the powdered medicine is transported from the fire extinguishing medicine supply source 1. Pipe 3 ′, main pipe 7, partition selection valve 8 ″ corresponding to protection compartment A, main pipe 7 on the lower side thereof, partition selection valve 8 ″ corresponding to protection compartment C, main pipe 7 on the lower side, in that order. It is pressure-fed, sent to the distribution pipe 5 of the protection section E, and discharged from the fire extinguishing agent releasing means 6. Further, when a fire occurrence in another protection section C is detected, the main valve of the first system 2 opens and the compartment selection valve 8 ″ corresponding to the protection compartment C switches as shown in C ″ of FIG. Instead, the inlet a is communicated with the second outlet c by the switching means d. As a result, the powder chemical from the fire extinguishing chemical supply source 1 corresponds to the main valve 2, the transport pipe 3 ', the main pipe 7, and the protective zone A. It is sent to the distribution pipe 5 of the protection section C through the selection valve 8 ″, the main pipe 7 on the lower side thereof, and the section selection valve 8 ″ corresponding to the protection section C, and is discharged from the fire extinguishing agent discharging means 6. Even when a fire is detected in a compartment, the compartment selection valve of the corresponding protection compartment is switched and the drug powder is sent to the protection compartment.

[0016]

[Effect of the device]

 According to the present invention, the number of main pipes can be significantly reduced as compared with the conventional one, so that it is not necessary to open many main pipe through holes in the wall of the chamber where the fire extinguishing agent supply source is installed. It is possible to prevent the unfavorable situation that the wall strength is extremely reduced and nearly half of the fire extinguisher installation work is occupied by the piping work of the main pipe, so that the construction cost can be significantly reduced. Further, since it is not necessary to provide a large number of selection valves in the chamber, the situation in which most of the space in the chamber is used as the installation space for the selection valve does not occur.

[Brief description of drawings]

FIG. 1 is an explanatory view of a fire extinguisher according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a fire extinguisher according to another embodiment of the present invention.

FIG. 3 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 A, B, C, D, E, F Protective compartment 1 Fire-extinguishing agent supply source 5 minutes piping 6 Fire-extinguishing agent discharging means 7 Main pipe 8'Floor selection valve (selection valve) 8 "Partition selection valve (selection valve) a Inlet b No. 1 outlet c 2nd outlet d switching means

Claims (1)

[Scope of utility model registration request] 1. A fire extinguishing agent supply source that is shared by a plurality of protective compartments, a main pipe led from the fire extinguishing medicine supply source, a fire extinguishing agent discharging means installed in each protective compartment, and a branch from the main pipe. And a separate valve for each protective compartment connected to the fire extinguishing agent discharge means, and a selection valve interposed at each connection point between the respective distribution pipe and the main pipe. The inlet communicating with the main pipe passage on the upper side of the selection valve, the first outlet communicating with the lower main passage of the selection valve, the second outlet communicating with the distribution pipe passage, and the first inlet A fire extinguisher comprising a three-way valve having switching means for selectively communicating with either the outlet or the second outlet.