JP2010160658A - Warning zone classification method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To classify a warning zone so that people in an architectural space quickly can start evacuation even when a fire breaks out in a place where the visibility in the architectural space is poor. <P>SOLUTION: In a method, an architectural space 1, which is marked off into a passage 10 and a room 20 having a passage entrance/exit to the passage 10 by being divided by a division wall, is classified into warning zones. The method is configured so that: the passage is classified into linear passage zones; the architectural space is classified into warning zones; an emergency broadcast device 36, which are provided for the passage 10 or the room 20, broadcasts the occurrence of a fire when the fire detection sensor 30 installed in one of the warning zones detects the fire and a fire detection sensor 30 installed in another warning zone adjacent to the warning zone detects the fire; and the emergency broadcast device does not broadcast the occurrence of a fire when the fire detection sensor 30 installed in one warning zone detects the fire but the fire detection sensor 30 installed in another warning zone adjacent to the warning zone does not detect the fire. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for classifying a security area of a building space.

  In general, a closed building space on each floor of a building is partitioned by a partition wall having a height from the floor to the ceiling and divided into a plurality of rooms (see Patent Document 1). For example, the interior of a building space that has an entrance / exit in a shared corridor or the like that can be evacuated outdoors (hereinafter referred to as “evacuation space”) is divided into a room such as a private room and a passage that connects the entrance to the exit space from the room. May be provided.

In this way, in a partitioned building space, a fire broadcast that informs the occurrence of a fire by conventional technology is to be issued when the occurrence of a fire is detected in two adjacent warning areas. Because it is classified based on the floor area (upper limit of 600m ² in Article 21, Paragraph 2 of the Fire Service Law Enforcement Ordinance), it is an architectural space with a partition wall that has poor visibility and may delay the start of evacuation. However, if it is less than the reference floor area, it is not necessary to divide into two or more alert areas. In addition, if a fire breaks out in a building space where there are occupants, the occupants should be able to easily recognize the occurrence of the fire. There was a premise that there would be little need to do.

Certainly, even if there is no partition in the building space or if there is a partition, if the passage is straight, the view in the building space is good, so the occupant notices the fire that occurred in the building space and evacuates quickly. You can start. However, if there is a bent portion in the passage, the portion beyond the bent portion cannot be seen, and even if a fire occurs in the passage ahead or in the attached room connected to the passage, the passage in front of the bent portion or the passage therethrough Residents in connected rooms are less likely to notice the fire and may delay the start of evacuation.
JP 2007-334683 A

  The present invention has been made in view of such a conventional problem, and even if a fire occurs in a poorly visible place in a building space, a warning area in which a person in the building space can quickly start evacuation. The purpose is to provide a classification method.

  In order to achieve such an object, the invention according to claim 1 is a method of partitioning a building space divided into a warning area by a partition wall and partitioned into a passage and a room having a passage entrance in the passage. The passage is divided into linear passage sections specified by dividing the passage with bent portions, and the building is constructed in a warning area including one passage section and all rooms having passage entrances in the passage section. The emergency broadcasting device provided in the passage or the room, which separates the space, detects a fire by a fire detection sensor installed in one of the warning areas, and another warning area adjacent to the warning area. When the fire detection sensor installed in the area detects a fire, it broadcasts the occurrence of a fire, and the fire detection sensor installed in one of the warning areas detects a fire. If another of the fire sensor installed in the security area adjacent to 戒区 zone does not sense the fire does not perform the broadcasting of fire, a security area division method characterized by.

  According to the first aspect of the present invention, even if a fire occurs in a poorly visible place in the building space, the warning area can be divided so that a person in the building space can quickly start evacuation. .

  In the building space constructed by such a warning area classification method, since the fire occurrence is broadcasted when the fire detection sensors installed in both of the warning areas adjacent to each other detect the fire, Broadcast according to the spread situation. In addition, since the fire is broadcast in accordance with the smoke diffusion state in this way, the occupants can evacuate safely and reliably.

  The invention according to claim 2 is the warning area classification method according to claim 1, wherein the emergency broadcast device detects a fire by the fire detection sensor installed in one of the warning areas. When the fire detection sensor does not detect a fire in another warning area adjacent to the warning area, a warning alert is broadcast.

  According to the second aspect of the present invention, since the person in the building space can prepare for evacuation in advance by the alerting broadcast, the evacuation can be started promptly when there is a broadcast of the occurrence of a fire. The alert area can be divided as follows.

  The invention according to claim 3 is the warning area classification method according to claim 1, wherein the passage is a single road and both ends thereof are connected to an evacuation entrance. Is the method.

  The invention according to claim 4 is the warning area division method according to claim 1, wherein both ends of all the passage sections are connected to another passage section, and two or more of the passage sections are evacuated. It is a warning area classification method characterized by connecting to an entrance / exit.

  The invention according to claim 5 is the warning area dividing method according to any one of claims 1 to 5, wherein one end of the first passage section is connected to an intermediate portion of the second passage section. The other end of the first passage section and the both ends of the second passage section are connected to another passage section or an evacuation entrance.

  ADVANTAGE OF THE INVENTION According to this invention, even if a fire generate | occur | produces in the location with bad visibility in a building space, a warning area can be divided so that the person in a building space can start evacuation rapidly.

=== First Embodiment ===
FIG. 1 is a plan view showing an architectural space 1 that is a target of smoke shielding portion arrangement design according to the first embodiment. As shown in the figure, the building space 1 is partitioned into a passage 10 and a room 20.

  The passage 10 includes an evacuation entrance 14 at the boundary with the evacuation space 12 where occupants evacuate when a disaster such as a fire occurs. The passage 10 is divided into passage sections 10A, 10B, and 10C by being divided at the bent portions.

  The chamber 20 includes a passage entrance 22 for connecting to the passage 10 at any location of the passage 10. One warning zone A is formed by one passage section 10A and one or more chambers 20A connected to the passage section 10A. Similarly, the passage section 10B forms a warning area B by the passage section 10B and the chamber 20 connected thereto, and the passage section 10C also forms a warning area C.

  FIG. 2 is a conceptual diagram showing the configuration of the automatic fire alarm device 30. As shown in the figure, the automatic fire alarm device 30 includes a fire detection control unit 32, a fire detection sensor 34, and an emergency broadcast device 36.

  The fire detection sensor 34 is provided in each passage 10 and each room 20, and detects the occurrence of a fire by detecting smoke generated from the fire. The fire detection sensor 34 that has detected the occurrence of a fire transmits the identification information for specifying the fire detection sensor 34 and the fact that a fire has been detected to the fire detection control unit 32. Here, the identification information includes information indicating a warning area where the fire detection sensor 34 is disposed.

  On the other hand, the emergency broadcast device 36 notifies the occupants in the building space that a fire has occurred or notifies that there is a possibility of a fire by an instruction from the fire detection control unit 32 described later. Attention broadcast.

  The fire detection control unit 32 receives the identification information for specifying the fire detection sensor 34 and the fact that the fire has been detected from the fire detection sensor 34 that has detected the fire occurrence. When the fire detection sensor 34 receives a notification that a fire has been detected in another warning area adjacent to the warning area where the fire detection sensor 34 is located, all emergency broadcast devices in the building space are also received. 36 is instructed to broadcast an alarm. On the other hand, the fire detection control unit 32 receives a notification from the fire detection sensor 34 that a fire has been detected. If 34 does not receive a notification that a fire has been detected, it instructs all emergency broadcast devices 36 in the building space 1 to broadcast a warning.

  Here, the adjacent warning area is a warning area including another passage section to which the passage section of the warning area is connected. For example, in the warning area A, the passage area 10A is connected only to the passage area 10B, so the warning area A is adjacent to only the warning area B. In addition, the warning area B is adjacent to the warning area A and the warning area C because the passage area B is connected to the passage area A and the passage area C.

FIG. 3 is a flowchart showing the procedure of the guard area classification method of the present embodiment.
First, linear passage sections 10A, 10B, and 10C are specified by dividing the passage 10 at a bent portion (S302). Here, the linear shape of the passage section refers to a passage shape with good visibility, and includes a substantially linear passage shape such as a passage having a curved outer edge portion of the passage.

  Next, the chambers 20A, 20B, and 20C connected to the passage sections 10A, 10B, and 10C are specified (S304). There may be a passage section without the connecting chamber 20, but there may be a passage section with one or more chambers 20 connected. For example, in this embodiment shown in FIG. 1, there are eight chambers 20A connected to the passage section 10A.

  The building space 1 is divided into a warning area including one passage section and all rooms connected to the passage section (S306). For example, the alert area A includes one passage section 10A and eight chambers 20A.

  When the fire detection sensor 34 in any of the warning areas does not detect a fire (S308: NO), the automatic fire alarm device 30 does not perform a fire broadcast and a caution broadcast to people in the building space 1 ( S310).

  On the other hand, when the fire detection sensor 34 in a certain warning area A detects a fire (S308: YES), the fire detection sensor 34 did not detect a fire in another warning area B adjacent to the warning area. When (S312: NO), the automatic fire alarm device 30 broadcasts a caution to the occupants in the building space 1 (S314). Further, when the fire detection sensor 34 in a certain warning area A detects a fire (S308: YES), the automatic fire alarm device 30 detects a fire in another warning area B adjacent to the warning area (S308). : YES), the automatic fire alarm device 30 performs a fire broadcast to the people in the building space 1 (S316).

  According to this embodiment, even if a fire occurs in a place with a poor view in the building space, the warning area can be divided so that a person in the building space can quickly start evacuation.

  In the building space 1 constructed by such a warning area classification method, fire broadcasting of a fire occurrence can be quickly performed by further subdividing the building space 1 into a warning area.

  For example, if the occupant is located in the caution area A, when a fire occurs in the same caution area A with good visibility from the position, evacuation is started quickly by visually observing the fire or smoke. be able to. On the other hand, when a fire occurs in another alert area B or C, which is a place where the line of sight is bad from the position, it is difficult to visually observe the fire or smoke. However, if a warning area divided according to the present embodiment is introduced, a quick fire broadcast is made, and the occupants can start evacuation quickly.

  Further, since the fire broadcast is performed when the automatic fire alarm device 30 detects a fire in both of the alert areas 1 adjacent to each other, it is possible to broadcast according to the smoke diffusion state.

  For example, fire smoke generated in the passage 10 or the room 20 usually has a property of spreading into the building space 1 through the passage 10. Therefore, when the fire detection sensor 34 detects the occurrence of a fire in a warning area adjacent to each other via the passage 10, broadcasting according to the smoke diffusion state can be performed by performing the fire broadcasting. That is, when two fire detection sensors 34 in two warning areas adjacent to each other are activated, there is a high probability that a fire is generated and smoke spreads from one to the other, and the evacuation from each room 20 to the evacuation space 12 is performed. The passage 10 as a route is being contaminated with smoke, and a quick evacuation start is necessary. And since the broadcast of the fire occurrence according to the smoke diffusion state is performed in this way, the resident can evacuate safely and reliably.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, The deformation | transformation as shown below is possible in the range which does not deviate from the summary.

  The shape of the passage in the first embodiment is a U-shape, but the shape of the passage is not limited to this, and may be an L shape, a B shape, or a T shape.

  FIG. 4 is a plan view showing the building space 2 when the passage shape is L-shaped. As shown in the figure, the passage section 10A and the passage section 10B are specified at the bent portion of the passage 10, and the warning section A is defined by the passage section 10A and the room 20A, and the passage section 10B and the room 20B are formed as in the first embodiment. And form a warning zone B.

  In this way, even if the shape of the passage 10 is L-shaped, even if a fire occurs in a place with poor visibility in the building space, a warning area is set so that those in the building space can start evacuation quickly. Can be classified.

  FIG. 5 is a plan view showing the building space 3 when the shape of the passage 10 is a T-shaped branch. As shown in the figure, the passage section 10A and the passage section 10B are specified at the bent portion of the passage 10, and the warning section A is defined by the passage section 10A and the room 20A, and the passage section 10B and the room 20B are formed as in the first embodiment. And form a warning zone B.

  In this way, even if there is a branch in the passage 10, even if a fire occurs in a place with poor visibility in the building space, the warning area should be divided so that those in the building space can start evacuation quickly. Can do.

  FIG. 6 is a plan view showing the building space 4 in the case where the shape of the passage 10 is a circular-shaped square shape. As shown in the figure, the passage section 10A, the passage section 10B, the passage section 10C, and the passage section 10D are specified in the bent portion of the passage 10, and the warning area A is defined by the passage section 10A and the room 20A as in the first embodiment. The passage section 10B and the room 20B form a warning area B, the passage section 10C and the room 20C form a warning area C, and the passage section 10D and the room 20D form a warning area D.

  In this way, even if the passage 10 is a circulation type, even if a fire occurs in a place with poor visibility in the building space, the warning area is divided so that a person in the building space can start evacuation quickly. be able to.

  Furthermore, even in the case of these combinations of passage shapes, even if a fire occurs in a poorly visible place in the building space, the warning area should be divided so that those in the building space can start evacuation quickly Therefore, the people in the building space can evacuate safely and reliably.

  FIG. 7 is a plan view showing the arrangement of smoke shields provided at the boundaries of each warning area of the building space 1. As shown in the figure, a smoke shielding part such as a fire door 42 and a non-combustible wall 44 may be provided at the boundary part of each warning area. That is, fire doors 42 are provided at the boundary portions of the passage sections 10A, 10B, and 10C, and non-combustible walls 44 are used as partition walls that correspond to the boundary portions of the respective warning areas.

  Thus, by providing the smoke shielding part in the building space 1, it is possible to prevent smoke from diffusing in the entire building space. In other words, when a fire occurs in a place with poor visibility in the building space, it is considered that the time required to start evacuation becomes longer, but even in such a case, the time for occupants to evacuate can be secured.

  FIG. 8A is a plan view showing an example in which a certain chamber 20 has an entrance / exit with respect to different passage sections 10. That is, each chamber 20 in the first embodiment has one passage entrance / exit 22, but has a respective entrance / exit for a plurality of passage sections of the passage section 10A and the passage section 10B as in the chamber 20BX shown in FIG. May be. In this case, a non-combustible wall 44 is arranged on the boundary wall between the chamber 20BX and the passage section 10A. A fire door 42 is disposed at the entrance to the passage section 10A of the chamber 20BX.

  Thus, even when the chamber 20 has an entrance / exit for each of the plurality of passage sections 10, the fire door 42 and the incombustible wall 44 can be arranged at appropriate positions, and thus, in the building space 4. Smoke and fire can be prevented from spreading.

  FIG. 8B is a plan view showing another example in which a certain chamber 20 has an entrance / exit with respect to different passage sections 10. That is, the chamber 20AX has an entrance / exit with respect to the passage section 10A and the passage section 10B as shown in the figure, but a non-combustible wall 44 is disposed on the wall at the boundary between the chamber 20AX and the passage section 10B. A fire door 42 may be disposed at the entrance to the 20AX passage section 10B. As described above, the chamber 20 having an entrance / exit for each of the plurality of passage sections 10 belongs to any one of the warning areas, and the fire door 42 and the non-combustible wall 44 are arranged at the boundary with the other passage sections 10. Is done.

It is a top view which shows the building space 1 used as the object of smoke shielding part arrangement | positioning design by 1st Embodiment. 2 is a conceptual diagram showing a configuration of an automatic fire alarm device 30. FIG. It is a flowchart which shows the procedure of the warning area division | segmentation method of this embodiment. It is a top view which shows the building space 2 in case a channel | path shape is L shape. It is a top view which shows the building space 3 in case a passage shape is T shape with a branch. It is a top view which shows the building space 4 in case a channel | path shape is a circulation-type square shape. 2 is a plan view showing the arrangement of smoke shields provided at the boundary of each warning area of the building space 1. FIG. It is a top view which shows the example in which the certain chamber 20 has an entrance / exit with respect to the different channel | path area 10, respectively. It is a top view which shows another example in which the certain chamber 20 has an entrance / exit with respect to the different passage area 10, respectively.

1, 2, 3, 4 Architectural space 10 Aisle 12 Evacuation space 14 Evacuation entrance 20 Room 22 Aisle entrance 30 Automatic fire alarm device 32 Fire detection control unit 34 Fire detection sensor 36 Emergency broadcast device 42 Fire prevention door (smoke prevention unit)
44 Noncombustible wall (smoke shield)

Claims (5)

A method of partitioning a building space divided into a warning area by partitioning with a partition wall into a passage and a room having a passage entrance in the passage,
Dividing the passage into linear passage sections identified by dividing the passage with bent portions,
Dividing the building space into a warning area including one of the passage sections and all rooms having passage entrances in the passage sections;
The emergency broadcast device provided in the passage or the room,
A fire occurs when a fire detection sensor installed in one of the warning areas detects a fire and a fire detection sensor installed in another of the warning areas adjacent to the warning area detects a fire. Broadcast
If the fire detection sensor installed in one of the warning areas detects a fire, but the fire detection sensor installed in another warning area adjacent to the warning area does not detect a fire, Do not broadcast outbreaks,
A warning area classification method characterized by that. It is a warning area division | segmentation method of Claim 1, Comprising:
In the emergency broadcasting apparatus, when the fire detection sensor installed in one of the warning areas detects a fire, but the fire detection sensor does not detect a fire in another warning area adjacent to the warning area. Is a warning area classification method characterized by broadcasting an alert. It is a warning area classification method according to claim 1 or 2,
The passage is a single road, and both ends thereof are connected to an evacuation entrance. It is a warning area classification method according to claim 1 or 2,
Both ends of all the passage sections are connected to another passage section,
A method for classifying a warning area, characterized in that two or more passage sections are connected to an evacuation entrance. It is a warning area classification method according to claim 1 or 2,
One end of the first passage section is connected to an intermediate portion of the second passage section,
The other end of the first passage section and the both ends of the second passage section are connected to another passage section or an evacuation entrance.

Images