JP2000126321A - Smoke insulation partitioning structure and control method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly cope with generation of fire in a structure whose inner space is partitioned into a plurality of sections by walls suspended from a ceiling surface by preliminarily setting a relation between the walls and areas where fire has generated to make large the projection amount of the walls, and remote controlling the walls corresponding to the fire generated areas. SOLUTION: Smoke sensors S1-Sm are provided at proper positions of an inner space of this structure, and output signals therefrom are input to a control part 60. A ceiling surface in the innter space is provided with fixed walls having heights stipulated by a law and free walls dropping due to their self weights in response to operation of actuators A (A1-An) at the time of generation of fire. Also, suspended walls from the ceiling surface are provided which are increased in their projection amounts due to the fall of free walls. A control part 60 implements a table setting program 61 and a smoke insulating wall control program 62 and sets a relation between the projecting amount of suspended walls and arears where fire has generated. The part 60 remote controls each actuator A so as to properly cope with the generation of fire in various areas by the use of the set results.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smoke-proof compartment structure and a method of controlling the same, and more particularly, to dividing a room into several compartments by walls projecting downward from a ceiling in the room, so-called "hanging walls". The present invention relates to a smoke-prevention compartment structure for preventing or delaying the spread of smoke when a fire occurs, and a control method therefor.

[0002]

2. Description of the Related Art For example, when a fire occurs in a large room such as a department store, smoke accompanying the fire spreads all over the room along the ceiling, and the amount of light of ceiling lights and the like is remarkably reduced, resulting in poor visibility. As a result, the doorway may be difficult to see, hindering evacuation guidance, and in some cases, causing panic. Therefore, some countermeasures are required from a safety point of view.

Therefore, a building having a total floor area of more than 500 square meters is stipulated by law to be partitioned by a smoke barrier made of incombustibles within 500 square meters. Here, the smoke prevention wall refers to a partition wall continuous from the ceiling surface to the floor surface, or a hanging wall projecting downward from the ceiling surface for a predetermined length. In addition, although the thing which has the effect which obstructs the flow of smoke is included in the law by the law or more, it is omitted for simplification of explanation.

In order to completely prevent the spread of smoke, it is only necessary to confine the smoke in a closed section. This is most effective, but it is necessary for a large sales area, for example, in a department store. It is impossible at all and can only be adopted.

<First Conventional Example> FIG. 10 is a view showing a conventional smoke-proof compartment structure having a hanging wall. In this figure,
1 is a floor surface, 2 is an outer wall, 3 is a ceiling, and 4 to 6 are hanging walls. Behind the ceiling 3, there is provided a smoke exhaust device 7 and a smoke exhaust air passage 8 opened to the outside through the smoke exhaust device 7, and the smoke exhaust air passage 8 is provided by hanging walls 4 to 6. It is connected to a plurality of smoke outlets 12 to 14 provided on the ceiling 3 so as to face a plurality of partitioned sections 9 to 11.

In such a structure, the section 10
Assuming that a fire occurs in the above, the smoke 16 from the fire point 15 rises toward the ceiling 3 and fills the section partitioned by the hanging walls 5 and 6, but the thickness of the smoke 16 is reduced by the thickness of the hanging walls 5 and 6. As long as the height (by definition, 50 cm or more) is not exceeded, it does not diffuse into the adjacent sections 9 and 11. Then, in this state, the section 10
The smoke exhaust port 13 is manually or remotely controlled or opened in conjunction with a fire alarm (not shown), and when the smoke exhaust device 7 is activated, the filled smoke 16 is quickly discharged from the smoke exhaust air passage 8 to the outside. And the diffusion of the smoke 16 can be prevented or delayed to secure sufficient time for evacuation guidance.

By the way, the "height" of the hanging walls 4 to 6
Has been conventionally determined from the viewpoint of satisfying laws and regulations, saving material costs, and not impairing the decorativeness of the room. Due to the design, when a large amount of smoke exceeding the smoke emission capacity is generated, there are inherent problems in evacuation guidance as described below.

FIG. 11 is a plan view showing a conventional smoke-preventing compartment structure, wherein 20 is an outer wall, 21 to 27 are hanging walls, 28 is an entrance, and 29 to 34 are sections partitioned by hanging walls 21 to 27. . In this figure, the crosses marked on the hanging walls 21 to 27 indicate that the hanging walls 21 to 27 have the same height (for example, 50 cm).

Now, as shown in FIG.
Consider a case in which a fire occurs and a large amount of smoke exceeds the smoke emission capacity. 35 is a fire point. The smoke rising from the fire point 35 fills the ceiling of the section 31 and the thickness of the smoke is 5
If it exceeds 0 cm, the hanging walls 22, 2 around the section 31
It spreads over the adjacent divisions 29, 32, and 33 over 4 and 25 (see FIG. 12B). In addition, sections 29, 3
If the thickness of the smoke of 2, 33 exceeds 50 cm, the hanging wall 2
Overcoming 1, 23, 26, 27, the remaining sections 30,
Also, the smoke spreads to the entire building (see FIG. 12 (c)).

[0010] Of the sections 29 to 34 shown in the figure, the most important section for evacuation guidance is the section 34 facing the entrance 28.
In order to evacuate with sufficient time, the invasion of smoke into the section 34 must be delayed as much as possible, but in the illustrated example,
Since smoke invades in the three steps (c), there is a disadvantage that such a request is not necessarily satisfied.
In the illustrated example, a section 30 surrounded by smoke is shown.
(See FIG. 12C).
If there is a person in this section 30, the person must cut through the adjacent section 32 filled with smoke in order to secure his own evacuation. Quite difficult.

Therefore, in the above-mentioned conventional smoke-proof compartment structure, in the early stage of the fire, smoke enters the most important section 34 for evacuation guidance, and depending on the fire place, a closed compartment surrounded by smoke. Because 30 occurs, on disaster prevention,
There are inherent problems that need to be resolved immediately.

<Second Conventional Example> Therefore, as shown in FIG. 13, the present applicant has proposed a hanging wall 4 projecting downward from a ceiling surface.
Among the sections 48 to 53 partitioned by 1 to 47, the hanging walls 46 and 47 that partition the most important section for evacuation guidance (for example, the section 53 facing the doorway) are maximized (H3), A “smoke-proof compartment structure” has already been proposed in which the amount of protrusion of the hanging wall that partitions the compartment is gradually reduced (H2> H1) as the distance from the important compartment increases along the flow line of the evacuation route. Nippon 10-270
No. 16 / February 9, 1998).

According to this, the invasion of smoke into the most important section for evacuation guidance is delayed to control the smoke concentration to a low level, and no closed section surrounded by smoke is generated depending on the fire place. You can do so.

[0014]

However, in the technique of the second conventional example, since the amount of protrusion of the hanging wall of each section is a fixed value, the above-mentioned technique can only be applied to a fire from a specific section set in advance. There was room for improvement in that it was not expected to be effective and could not adaptively cope with fires from various compartments.

Accordingly, the present invention provides a smoke-proof compartment structure in which the relationship between the amount of protrusion of the hanging wall and the fire compartment can be freely set, and accordingly, fire from various compartments can be adaptively dealt with. With the goal

[0016]

According to a first aspect of the present invention, there is provided a smoke-proof compartment structure wherein a room is divided into several compartments by hanging walls protruding downward from a ceiling surface of the room. Changing means for changing the protruding amount of the hanging wall, setting means for presetting a relationship between the hanging wall and the fire section for increasing the protruding amount, and a hanging wall corresponding to an actual fire section in accordance with the relation. And control means for remotely controlling the amount of protrusion. The control method of the smoke-proof compartment structure according to claim 2 is a control method of a hanging wall having a variable protrusion amount, wherein a first step of setting a relationship between a hanging wall and a fire section that increases the protrusion amount in advance is provided, A second step of remotely controlling the protrusion amount of the hanging wall corresponding to the actual fire section according to the relationship.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, S1 to Sm
Is a smoke detector, 60 is a control unit (change means, setting means, control means), and A1 to An are actuators (change means) for changing the amount of protrusion of the hanging wall. Here, the control unit 60 corresponds to a “receiver” according to the name of the fire-fighting equipment, but its essential functions are a “table setting program 61” and a “smoke-proof wall control program 62” shown in the figure. "
In order to freely set the relationship between the amount of protrusion of the hanging wall and the fire section, and to make it possible to adaptively cope with fire from various sections by using the setting result. In this regard, since a general-purpose personal computer system can be used, the system will be described below for convenience, but it is needless to say that the present invention is not limited to this.

FIG. 2 is a view showing the hanging wall 63 of the present embodiment. The hanging wall 63 has at least a fixed wall 63a having a height H1 prescribed by law and a fixed wall 63a.
3a but along actuator A
a free wall 63b that falls under its own weight in accordance with the operation of i (i is 1 to n; the same applies hereinafter), and the falling amount of the free wall 63b substantially increases the amount of protrusion of the hanging wall 63 from H1 to H2. It works.

The structure of the hanging wall 63 is not limited to this. The point is that the control signal PWR can change the substantial protrusion amount in the increasing direction (H1 → H2). For example, as shown in FIG. 3, it is attached to one end of the fixed wall 64a by the opening / closing mechanism 64b. Provided with the free wall 64c provided, the free wall 64c is opened with the operation of the actuator Ai, or the foldable hanging wall 65a is wound up with a wire 65b, and the wire 65b is wound with the operation of the actuator Ai. It may be opened and the hanging wall 65a may be dropped by its own weight.

1. Description of the Table Setting Program 61 The table setting program 61 is appropriately executed when the system is introduced, when the section of the target building is changed, or the like. When this program is executed, a user interface (GUI) as shown in FIG. ) Display the object on the display.

This object includes a text control 70 having a comment message “Please designate a fire section”, a graphic control 71 for designing a section layout of a target building, and each section E
Transparent button control 7 provided on 1 to E6
Button control 7 to understand setting contents, 2-77
8 and a button control 7 to cancel the settings
9, the required procedure is set in the click event of each button control.

For example, in the button controls 72 to 77 provided on each of the sections E1 to E6, a procedure for reversely displaying the section in response to the click of the button control and obtaining the number of the section is set. In the button control 78 that understands the setting contents, the highlighted section is set as the “fire section”,
A procedure for moving to the next GUI object display is set.

FIG. 6 shows the GUI object display. This object separates a text control 80 having a comment message “Please specify a hanging wall to increase the amount of protrusion”, a graphic control 81 that designs a layout of a target building, and each of the partitions E1 to E6. Button controls 82 to 88 provided on the hanging walls B1 to B7, an image control 89 indicating a fire section, a button control 90 for confirming the setting contents, and a button control 91 for canceling the setting contents are included. The required procedure is set in the click event of the button control.

For example, the button controls 82 to 88 provided on each of the hanging walls B1 to B7 display the hanging wall and the button control in that position in response to a click of the button control, and display the hanging wall. Is set, and in the button control 90 for confirming the setting contents, the hanging wall in the reverse display is set to "a hanging wall for increasing the protruding amount".
The following procedure for performing smoke diffusion simulation display is set.

FIG. 7 shows a display example of the smoke diffusion simulation, in which the hanging walls 84, 85 and 86 at the positions of the filled button controls are set as "hanging walls which increase the amount of protrusion". . In this display example, the amount of protrusion of the hanging walls 84, 85, and 86 is H2, and the amount of protrusion of the other hanging walls is H1. Since the relationship between H2 and H1 is H2> H1 as described above, if the section E6 is a fire section, the smoke generated in this section first fills the section E6, and the thickness of the smoke exceeds H1. At this stage, the smoke is diffused into the sections E4 and E5, but since the smoke thickness at this stage is section E6> section E4 (or section E6> E5),
As shown, the section E6 is displayed by cross-hatching,
If the sections E4 and E5 are displayed by single hatching, the smoke thickness at that stage can be visually expressed. Therefore, since it is possible to intuitively grasp which hanging wall protrusion amount should be increased according to the fire section, even an amateur who does not have special training can freely control the relationship between the hanging wall protrusion amount and the fire section. Can be set to

FIG. 8 is a diagram showing a relation table between the amount of protrusion of the hanging wall and the fire section set by using the above program. Needless to say, the relationship can be variously changed depending on the structure of the target building, the purpose of use thereof, the position of the refuge, and the like, and the illustrated table shows only a simple example of convenience.

In this table, S1 to S18 are the smoke detector numbers, E1 to E6 are the section numbers, B1
ＢB7 is the number of the hanging wall. It is assumed that three smoke detectors are provided for each section.

2. Description of the smoke barrier control program 62 This program is always executed during the fire detection period. FIG. 9 is a flowchart of the smoke barrier control program, in which signals from all smoke detectors are monitored (ST).
EP1), upon receiving a signal from any of the smoke detectors,
The table of FIG. 8 is searched using the number of the smoke detector,
The number of the fire section and the number of the hanging wall having a large protrusion amount are extracted (STEP 2). Now, assuming that the number of the smoke detector is S1 for convenience, the section number E1 and the hanging wall numbers B3, B4, B5 are extracted from the table of FIG. Then, an operation signal is output to the actuator Ai attached to the hanging wall numbers B3, B4, B5 (STEP
3) receiving a hanging wall operation signal (a signal indicating that the amount of protrusion of the hanging wall is large; for example, a signal of a microswitch attached to the hanging wall) (STEP 4), and using the signal, the hanging is performed. An example of controlling the operation state of the wall on the display (STEP 5) is performed. The operating state of the hanging wall can be performed using the simulation display of FIG.

As described above, according to the present embodiment,
(1) The projecting amount of the hanging wall can be remotely controlled, and (2) the relationship between the hanging wall and the fire section for increasing the projecting amount can be freely set, and (3) the same set value. The remote control of the actual fire section and the amount of protrusion of the hanging wall is performed in accordance with the above, so that the fires from various sections can be compensated for by compensating for the drawbacks of the technique (second conventional example) previously proposed by the present applicant. Can be adaptively dealt with. Therefore, it is possible to provide a more practical and flexible smoke prevention compartment structure, and to realize a practically extremely useful and easy-to-use disaster prevention technology.

The embodiments of the present invention are not limited to those described above. For example, the projecting amount of the hanging wall may be increased to two or more steps, or may be changed steplessly, or the height H1 of the hanging wall in the initial state may be 5
Other than 0cm (If you ignore laws and regulations, make it 0cm or 50cm
The following may be possible).

Further, when setting the relationship between the amount of protrusion of the hanging wall and the fire section, consideration should be given to smoke evacuation (induction from the fire point to the smoke outlet) even when evacuation is guided by personnel. It does not matter. Which one to consider depends solely on the structure and use of the target building.

[0032]

According to the present invention, the relationship between the hanging wall and the fire section which increases the amount of protrusion is set in advance,
In accordance with the relationship, the protrusion amount of the hanging wall corresponding to the actual fire section is remotely controlled, so that fires from various sections can be adaptively dealt with, and a more realistic and flexible prevention method. By providing a smoke compartment structure, a practically useful and easy-to-use disaster prevention technology can be realized.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram.

FIG. 2 is a structural diagram (1) of a hanging wall.

FIG. 3 is a structural diagram (part 2) of a hanging wall.

FIG. 4 is a structural diagram (part 3) of a hanging wall.

FIG. 5 is a screen display diagram (No. 1) of a table setting program.

FIG. 6 is a screen display diagram (part 2) of the table setting program.

FIG. 7 is a screen display diagram (part 3) of the table setting program.

FIG. 8 is a table structure diagram.

FIG. 9 is a flowchart of a smoke prevention wall control program.

FIG. 10 is a structural view of a first conventional example.

FIG. 11 is a plan view of a first conventional example.

FIG. 12 is a smoke diffusion diagram of the first conventional example.

FIG. 13 is a plan view and a cross-sectional view taken along line AA of a second conventional example.

[Explanation of symbols]

 E1 to E6 Section Ai Actuator (change means) 60 Control unit (setting means, control means) 63 Hanging wall

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) E06B 9/17 E06B 9/17 B

Claims (2)

[Claims] 1. A smokeproof partition structure in which a room is partitioned into several sections by a hanging wall projecting downward from a ceiling surface of the room, changing means for changing a projecting amount of the hanging wall, Setting means for setting in advance the relationship between the hanging wall and the fire section that increases the amount, and control means for performing remote control of the protrusion amount of the hanging wall corresponding to the actual fire section in accordance with the relationship. A smoke-proof compartment structure characterized by the following. 2. A method for controlling a hanging wall having a variable protrusion amount, comprising: a first step of presetting a relationship between a hanging wall having a large protrusion amount and a fire section; and an actual fire section according to the relationship. And a second step of remotely controlling the amount of protrusion of the hanging wall corresponding to (i).