JP2002224232A - Fire preventing section forming system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent the spread of fire and the temperature rise of a shielding member on a non-fire side sectioned by the shielding member such as fire prevention curtains without narrowing a sales floor area. SOLUTION: Fire prevention curtains 14A and 14B are provided inside a building so as to face each other and are lowered from the inside of the building through lintels 26A and 26B at the time of the fire or the like. When the fire prevention curtains 14A and 14B are lowered, a space inside the building is partitioned and prescribed fire prevention sections are formed. At the time, the interval of the fire prevention curtains 14A and 14B is turned to the interval through which a person can pass or more. Also, in order to secure the interval in which an article 33 can be arranged, the fire prevention curtains 14A and 14B are provided on adjacent different beams at a building upper part, one fire prevention curtain is provided on the beam at the building upper part and the other fire prevention curtain is provided on a supporting member at the building upper part different from the beam or both fire prevention curtain devices are provided respectively on the supporting members other than the beams at the building upper part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to shielding a space such as a passage in a building such as a sheet-like or shutter-like fire curtain to prevent the spread of a fire or the spread of smoke generated inside the building. The present invention relates to a fire-prevention section forming system that forms a fire-prevention section by partitioning members. The present invention relates to a fire compartment forming system which can be minimized.

[0002]

2. Description of the Related Art Generally, sheet-like or shutter-like passages in buildings such as buildings with a large floor area are automatically closed at the time of the fire in order to prevent the spread of fire and the spread of smoke in the event of a fire. 2. Description of the Related Art A fire compartment forming system that operates to form a space surrounded three-dimensionally with pillars, walls, floors, and the like, that is, a fire compartment using a shielding member such as a fire curtain is provided.

FIG. 1 and FIG. 2 are diagrams showing a schematic configuration of a fire curtain device used in the fire compartment forming system. FIG. 1 is a side view of a fire curtain device, and FIG. 2 is a front view thereof. Basically, the fireproof curtain device includes the brackets 11 and 12, the winding shaft 13, and the slat curtain 14.
Consists of The fire curtain device has components other than the above, such as an automatic closing device, but details thereof are omitted since they have been conventionally known. Brackets 11 and 12
Is attached to the side surface (the front side in FIG. 2) of the beam 24 formed on the upper floor slab 23 side between the pillars 21 and 22 on both sides. The winding shaft 13 includes the bracket 1
It is rotatably mounted between 1 and 12. The slat curtain 14 is attached to the winding shaft 13 and is wound by an automatic closing device (not shown). The ceiling 25 is provided with a slit-shaped opening (lintel) 26 serving as an entrance and exit of the slat curtain 14. Slat curtains 1 are provided on the side surfaces of the pillars 21 and 22.
Guide rails 15 and 16 are provided as guides 4. The slat curtain 14 moves up and down along lintels 26 along guides 15 and 16.
The state where the slat curtain 14 is wound around the winding shaft 13 is a normal state. In this state, the lowermost seat plate of the slat curtain 14 is in close contact with the lintel 26. When a fire occurs, the fire curtain device automatically lowers the slat curtain 14 in response to signals from the smoke sensors (or heat sensors) 27 and 28,
The space formed by the ceiling 25 and the slab 20 is closed. In FIG. 1, the illustration of the guide rail 16 is omitted, and in FIG. 2, the ceiling 25 is shown by a dotted line. FIG. 1 shows a fully closed state of the slat curtain 14, and FIG. 2 shows a partially closed state.

[0004]

Conventionally, FIG. 1 and FIG.
As shown in FIG. 1, the fire prevention compartment was formed by using the fire prevention curtain device alone, and as shown in FIG.
When the combustibles 32 are present, if the amount of the combustibles 31 on the fire side is large, the amount of flame heat of the combustibles 31 is large, or if the combustibles 31 burn for a long time, the radiant heat increases. The temperature of the non-fire side of the slat curtain 14 rises, and the non-fire side combustibles 32 may spread. Further, if a person is on the non-fire side and comes into contact with the slat curtain 14 or stays beside it, the slat curtain 14 may be damaged such as a burn.

Therefore, as shown in FIG. 3, there has been proposed a fire-prevention section forming system in which fire-prevention curtain apparatuses are arranged in a double manner to form a fire-prevention section. By arranging the fire protection curtain devices in this manner, the radiant heat from the combustible material 31 is reduced by the two slat curtains 14A, 1A.
4B can effectively shield the slat curtain 14B itself on the non-fire side, and the temperature rise can be reduced. However, as shown in FIG. 3, since the fireproof curtain devices are arranged on both side surfaces of the beam 24, the distance between the slat curtains 14 </ b> A and 14 </ b> B is small defined by the width of the beam 24. Therefore, when the combustible material 31 is burning at a position close to the slat curtain 14A, the radiant heat reaches the slat curtain 14B on the non-fire side, and there is a problem that the temperature of the slat curtain 14B itself increases.

At that time, if the combustible material 32 is disposed close to the slat curtain 14B, the combustible material 31
There is also a problem that even the combustible material 32 on the non-fire side spreads due to radiant heat. Further, in a large-scale store or the like, if a product or the like is placed under the fireproof curtain device, the slat curtains 14A and 14B do not reach the floor and a fireproof section cannot be formed. Can not place goods etc. Further, according to the Building Standards Law, it is necessary to divide one fire prevention compartment so that the size is usually within 1500 square meters. Assuming that the shape of the fire compartment is square, the length of one side will be less than about 40 meters. Therefore,
Fire curtain devices for forming fire compartments must be provided sequentially, with a length of less than 40 meters. At this time,
As shown in FIG. 3, when the fire curtain device is provided on both sides of the beam 24, the space between the slat curtain 14A and the slat curtain 14B becomes a dead space in which products and the like cannot be arranged. As a result, there is a concern that the sales floor area will be reduced.

[0007] An object of the present invention is to provide a fire protection system capable of effectively preventing the spread of fire between the fire protection sections partitioned by the fire protection curtain device and the temperature rise of the curtain on the non-fire side without reducing the sales floor area as much as possible. It is to provide a compartment forming system.

[0008]

According to a first aspect of the present invention, there is provided a fire-prevention compartment forming system for forming a predetermined fire-prevention compartment in a building by extending a first shielding member into the building to partition the space. And a second shielding member that extends the second shielding member at a predetermined interval with respect to the first shielding member of the first shielding member, and forms the fire protection compartment together with the first shielding member. And wherein the predetermined interval is set to be longer than an interval at which a person can pass. The first and second shielding members are provided in the building so as to face each other, and are extended from the inside of the building when a fire occurs. When the shielding member is a fire curtain, the fire curtain is provided at the upper part of the building and descends from an opening such as a lintel. In addition to this, a shielding member for fire prevention is extended by a horizontal pulling method,
It may be paid out in an ascending manner. By extending the first and second shielding members into the building in this manner, the space inside the building is partitioned, and a predetermined fire section is formed. At this time, the interval between the first and second shielding members is equal to or greater than the interval at which a person can pass. That is, since the distance that an adult of a standard physique can pass is about 60 cm, if the distance between the first and second shielding members is greater than this, articles such as goods can be arranged there. Is less likely to occur. Since the distance between the first and second shielding members is relatively large, radiant heat due to a fire with a large amount of combustibles, a fire with a large calorific value of the combustibles, or a fire with a long burning time of the combustibles is on the non-fire side. Since it is difficult to transmit the heat to the shielding member, the spread of fire across the fire prevention means is less likely to occur, and the evacuees are less susceptible to damage such as burns. The interval at which a person can pass is based on the interval itself, and does not assume that a person can pass or that a person can pass. .
Therefore, it goes without saying that the case where an article such as a product is placed within this interval makes it impossible or possible for a person to pass through.

[0009] The fire prevention compartment forming system according to claim 2 comprises:
2. The horizontal opening interval of a fire door provided to contact a section formed between the first shield member and the second shield member according to claim 1, wherein the predetermined interval is about two minutes. And at least about three times the opening interval. The first and second shielding members form a small three-dimensionally enclosed fire compartment with columns, walls, floors, etc.
A fire door will be provided in contact with this small fire compartment to provide an escape route. In the case where the interval between the lateral openings of the fire door is configured to be wider than the interval between the shield members, it is preferable that the interval between the apertures of the fire door is set to about twice or less the interval between the shield members. . It is considered that one of the reasons why the opening interval is made wider than the interval between the shielding members is to allow a margin for evacuees passing through the interval between the shielding members. From this viewpoint, it is preferable to increase the opening interval as much as possible. On the other hand, it is usually the case that the cost is increased by making the fire door wider, so it is not appropriate to make it too wide in consideration of this point of view. It is preferred that they are not too small. However, if it is expected that the evacuees will stay in the vicinity of the fire door intensely, the opening interval may be increased more than about twice. By the way, the above value of about twice or less is based on the interval between the shielding members, and based on the opening interval, the interval between the shielding members is substantially equal to or more than half of the opening interval. Needless to say, they are equivalent. In addition, in the case where the entire evacuation is set so that evacuees passing through the interval between the shielding members can pass through the fire doors without generating stagnation or the like, from the viewpoint of evacuation, the shielding members It is preferable that the distance between the openings is equal to the width of the openings. Further, by setting the interval between the first and second shielding members to be three times or less the opening interval of the fire door, this small fire compartment is prevented from becoming too large. For this reason, it is better that the interval between the first and second shielding members is wide, considering only that a person passes or a product is placed. However, a release means for releasing gas, water, a fire extinguisher, or the like is provided in the fire prevention compartment, and the inside of the fire prevention compartment is efficiently cooled so that radiant heat on the combustion side is not easily transmitted to the non-combustion side. In relation, if the section formed between the first and second shielding members is too large, facilities such as discharge means for cooling the section become enormous, and the products existing in the fire protection section It is conceivable that the product value is lost by being wet or stained by the released water or the like. Therefore, it is preferable that the size of the fire-prevention compartment is not more than three times the opening interval at most, and is not excessively large. Also,
When a plurality of fire doors are provided so as to be in contact with the fire protection compartment, it is preferable that the above-described relationship be satisfied for all the fire doors, but the present invention is not limited to this. One of the fire doors may be satisfied, and a fire door that satisfies the upper limit and a fire door that satisfies the lower limit may be separately provided.

[0010] According to a third aspect of the present invention, there is provided a fire protection compartment forming system.
2. The apparatus according to claim 1, wherein the predetermined distance is equal to or less than a distance between a beam above the building and a beam adjacent to the beam. Usually, fire prevention means such as fire prevention curtains are often installed using beams of a building from the viewpoint of mounting strength. Therefore, in this case, the distance between the first and second shielding members when the first and second fire prevention means are provided between adjacent beams is made maximum.

According to a fourth aspect of the present invention, there is provided a fire protection compartment forming system.
In claim 3, the first fire protection means is provided on a beam above the building, and the second fire protection means is provided on a beam adjacent to the beam. As described above, the first and second fire prevention means are installed using the beams of the building from the viewpoint of the mounting strength as described above.

[0012] According to a fifth aspect of the present invention, there is provided a fire protection compartment forming system.
4. The method according to claim 1, wherein the first fire protection means is provided on a beam above the building, and the second fire protection means is provided on a support member above the building, which is different from the beam. In the case where the distance between the first and second shielding members is smaller than the distance between adjacent beams, a support member for maintaining the mounting strength is provided above the building.

[0013] The fire protection compartment forming system according to claim 6 comprises:
4. The method according to claim 1, wherein the first and second fire prevention means are provided on a support member other than the beam above the building. In this case, when the first and second shielding members are provided above the building without using beams, the support member is provided above the building and used.

According to a seventh aspect of the present invention, there is provided a fire protection compartment forming system.
7. The fire protection device according to claim 1, wherein a section between the first and second shielding members forms one fire protection section. It has a door or a fire vent. This is such that even if a person is left in a small fire protection section formed by the first and second shielding members, the person can be evacuated from one of the fire doors or the fire opening.

[0015] The fire protection compartment forming system according to claim 8 comprises:
A discharge means for discharging gas, water, a fire extinguishing agent, or the like is provided in a section formed between the first and second shielding members according to any one of claims 1 to 6.
This is because, when the gas, water or fire extinguishing agent is released from the discharging means, the articles arranged in the small fire protection compartment formed between the first and second shielding members are cooled or in a non-combustible state. Therefore, it is possible to minimize the spread of articles in this section.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a fire protection compartment forming system according to the present invention will be described below with reference to the accompanying drawings.

FIG. 4 is a side view schematically showing a fire curtain device and a fire door used in the fire compartment forming system according to the present invention, and FIG. 5 is a front view thereof. As shown in FIG. 4, the fire compartment formation system according to the present invention includes a pair of fire curtain devices and fire doors provided on the sides of different beams above the building. The pair of fireproof curtain devices includes brackets 11A, 12A, 11A.
B, 12B, winding shafts 13A, 13B, slat curtains 14A, 14B, and guide rails 15A, 16
A, 15B and 16B. The bracket 11B, the guide rails 15B and 16B, and the fire door 17B
Although not shown, the bracket 11A, the guide rails 15A and 16A, and the fire door 17A of FIG. 5 correspond to each other, and therefore, the following description will be made assuming that they are present. Further, the fireproof curtain itself may be provided with a door or a slit that can pass therethrough for evacuation or the like. In addition,
In addition to the fire prevention curtain device, slat curtain 14
An automatic closing device for closing A and 14B while controlling the speed is provided, but is omitted here.

The brackets 11A and 12A are connected to the columns 6 on both sides.
1 and the column 62, it is attached to the side surface of the beam 24A formed on the upper floor slab 23 side, and the bracket 11B, 1
2B is attached to the side surface of the beam 24B. That is, the pair of fire curtain devices are attached to the side surfaces of the beams 24A and 24B opposite to the opposing surfaces. Of course, slat curtain 14A and slat curtain 1
4B, the beam 24A, 2B can be provided if it is at least the distance that a person can pass, or at least the distance that can place a product having a size of about 30 cm or more.
Needless to say, it may be attached to the opposing surface side of 4B. The winding shaft 13A includes brackets 11A and 12A.
Between the winding shaft 13B, the brackets 11B, 12
Between B, each is rotatably attached. The slat curtains 14A, 14B
A and 13B, respectively, and can be wound by a manual device or an automatic closing device (not shown).

4 and 5, the pillars 61 and 62, the ceiling 2
5. Since the fire compartment is formed by the slat curtains 14A, 14B and the slab 20, the fire door 17 for evacuation is provided.
A and 17B are provided in contact with the guide rails 15A and 15B of the respective fire protection curtain devices. That is,
Pillars 61, 62, ceiling 25, slat curtain 14A, 1
4B, two fire doors 17A and 17B are provided for one fire section formed by the slab 20. This means that if a person is left in this fire compartment,
This is to enable evacuation from one of 7A and 17B. The reason why the number of fire doors 17A and 17B is two or more is that if one fire escape door must be evacuated to the side where a fire has occurred, it is not possible to secure a safe evacuation passage. Also, firefighters may use fire doors for firefighting activities. Fire door 1
7A and 17B are columns 61 and guide rails 15A and 15B.
And a space formed by the ceiling 25. The fire doors 17A and 17B may be a normally closed type or a normally open type. The fire door used in this embodiment may be a normally closed type or a normally open type, depending on the structure of the building. Normally, the distance between the lateral openings of the fire door is the distance that a person can pass through, and
0 cm or more.

On the ceiling 25, slat curtains 14A,
Slit-shaped opening (lintel) 2 serving as the entrance and exit of 14B
6A and 26B are provided. In addition, the space between the ceiling 25 and the upper slab 23 has a slat curtain 14.
Inert gas (nitrogen, carbon dioxide, argon, etc.), halogen gas, or water particles or water fine particles (water mist) in the space formed by A and 14B.
A plumbing facility 41 for spraying air is provided, and a ceiling 25 near the center of the slat curtains 14A and 14B is provided.
In addition, a nozzle 42 for discharging gas or spraying water particles or the like is provided. Smoke sensor (or heat sensor) near fire compartment
It is assumed that the slat curtains 14A and 14B of the fire curtain apparatus descend and start closing in conjunction with 27, 28 and 29, and at the same time, gas is discharged from the nozzle 42 or water particles are sprayed. As a result, even if the combustible material 33 in the fire protection compartment receives the heat of combustion of the combustible material 31, the combustible material 33 does not burn due to lack of oxygen due to a decrease in oxygen concentration. Inert gas and halogen gas have a specific gravity slightly higher or lower than that of air. However, when the combustible material 31 is burned and the fireproof curtain device is fully closed as shown in FIG. Since an airflow circulating in the counterclockwise direction is generated in the compartment, a slight difference in specific gravity causes no problem in performance.

The inert gas, halogen gas, etc.
The structure may be such that what is stored in a cylinder in another equipment room is supplied via a piping facility 41, or supplied from a cylinder installed above the ceiling 25 or below the upper slab 23. May be performed. In addition, for gas release, sensors for detecting oxygen concentration are provided on ceilings, pillars, wall surfaces, etc., and when the oxygen concentration is below a predetermined oxygen concentration, the gas is not released. A control system for releasing gas may be provided so that a small amount of gas is released. In addition to the method of discharging gas or spraying water particles, the powder or foam extinguishing agent used in a fire extinguisher may be discharged or sprayed from the nozzle 42 to prevent the combustible 33 from burning. Good. Further, the nozzle 42 may be a nozzle of a sprinkler, which sprays water particles continuously to cool the combustibles 33 and also sprays to the slat curtains 14A and 14B to cool the curtain surface in contact with the fire prevention compartment. Good. At this time, it is necessary to provide a drain on the floor of the fire prevention compartment to prevent water from leaking from this fire prevention compartment to other compartments or downstairs. Further, a water mist may be sprayed from the nozzle 42 to cool the combustible material 33 by water fine particles and also cool the curtain. In the case of a water mist, since water particles in the air are easily vaporized, the vaporized radiation can effectively shield radiant heat from a fire. Further, since the oxygen concentration in the fire protection compartment decreases due to the vaporization of the water particles, it becomes possible to make it difficult for the combustibles 33 to ignite. Regarding the release or spraying of such inert gas, halogen gas, fire extinguishing agent, water particles by a spun recycler, water particles by a water mist, appropriate ones according to the types of combustibles disposed in the building, etc. It may be installed selectively. At this time, it goes without saying that these may be installed alone or in combination.

Guide rails 15A and 15B for guiding the slat curtains 14A and 14B are provided on the side surfaces of the fire doors 17A and 17B, and a guide rail 1 for guiding the slat curtains 14A and 14B on the side surface of the pillar 62.
6A and 16B are provided. Slat curtain 14
A, 14B are these guide rails 15A, 16A,
It rises and falls along lintels 26A and 26B along 15B and 16B. Slat curtain 14
The state where A and 14B are wound around the winding shafts 13A and 13B, respectively, is a normal state. In this state, the lowermost seat plates of the slat curtains 14A and 14B are in close contact with the lintels 26A and 26B, respectively. When a fire occurs, the fire curtain device automatically lowers the slat curtains 14A, 14B in response to signals from the smoke sensors (or heat sensors) 27, 28, 29,
2. The space formed by the ceiling 25 and the slab 20 is closed. The reason why the smoke sensor 29 is provided is that there is a possibility that the combustibles 33 in the fire protection compartment formed by the slat curtains 14A and 14B may burn.

The fire protection compartment forming system according to this embodiment differs from the conventional fire protection compartment forming system in that the fire prevention curtain device is provided on the side surfaces of different beams 24A and 24B.
That is, the beams 24A and 24B here are the columns 61 and 62
Is provided between the columns 61 and 62 at substantially the same interval as the width (about 1 to 2 m). The fireproof curtain device is attached to the side surface of the beams 24A, 24B opposite to the opposing surface. Accordingly, the distance between the slat curtains 14A and 14B is substantially equal to the width of the pillar 62 (1 to 1).
2m). Therefore, the slat curtains 14A, 14A
If the distance between B and this is such a degree, it is possible to arrange a product (combustible 33 or the like) of about 30 cm or more in the fire protection section formed by the slat curtains 14A and 14B and the columns 61 and 62. . Therefore, a narrow space formed between the conventional slat curtains 14A and 14B as shown in FIG. 3 and a dead space where a product or the like cannot be arranged does not occur. In addition, since the distance between the slat curtains 14A and 14B is sufficiently large, the air in the compartment sufficiently exerts the effect as a heat insulating material, and radiant heat due to the flame of the combustible material 31 is applied to the non-fire side slat curtain 14B. It can be difficult to transmit. When the beams 24A and 24B do not exist between the columns 61 and 62 as shown in FIG.
Exists but the beam 24B does not exist, the beam 24B
It is needless to say that the fire protection compartment forming system according to this embodiment can be configured by providing the bracket for holding the fire prevention curtain device corresponding to the above in the upper slab 23. In this case, the slat curtain 14
The slat curtains 14A, 1B are attached by attaching a bracket for holding the fireproof curtain device so that the distance between A, 14B is sufficiently larger than the width of the columns 61, 62.
The area of the fire protection section formed by the 4B and the columns 61 and 62 can be set to an arbitrary size.

The slat curtains 14A and 14B may be used for fire prevention and have relatively low airtightness. However, piping equipment that discharges an inert gas (nitrogen, carbon dioxide, argon, etc.) or a halogen gas into the space partitioned by the slat curtains 14A, 14B, or sprays water particles or water particles (water mist), etc. 41 and the nozzle 42, the slat curtain 14
As A and 14B, it is desirable to use a curtain with high airtightness. This is the slat curtain 14A, 14
B, since the volume of the fire protection compartment formed by the columns 61 and 62 is relatively small as compared with other fire protection compartments, even if the amount of gas released from the nozzle 42 and the amount of spray of water particles are small, the fire protection compartment is small. This is because gas and water particles quickly fill the inside, and the predetermined performance is sufficiently exhibited. Also,
The thickness of the slat curtains 14A and 14B may be sufficiently thinner and lighter than the thickness of 1.6 mm of a conventionally used fireproof curtain device. For example, a material having a thickness of about 0.8 mm can be used. This is because the distance between the slat curtains 14A and 14B forming the fire protection compartment is sufficiently large, and the air present in the fire protection compartment exhibits relatively high heat insulation performance. That is, in the case of the double fire curtain device as shown in FIG. 3, it means that the distance between the slat curtains 14A and 14B is small and the air in the space did not function as a heat insulating material.

FIG. 6 is a diagram showing an example of how the fire protection compartment forming system is arranged in a building space by the fire prevention curtain device and the fire door shown in FIGS. 4 and 5. In FIG. 6, the middle part of the square building space surrounded by the outer walls 51 to 54 is formed by the fire compartment formation system into two large fire compartments of the upper space 55 and the lower space 56 and between the pillars 61 to 65. The case where a small fire compartment is formed is shown in FIG. That is, pillars 61-
A fire curtain device and a fire door as shown in FIG. 4 are respectively provided between 65, and a small fire compartment is formed by the fire curtain device, the fire door, pillars, walls and the like shown in FIGS. I have. Guide pillars 15A, 16A, 15B, 16B of slat curtains 14A, 14B of the fire protection curtain device and fire door 17
Frames A and 17B are provided respectively. In the case of a normally closed fire door, the fire door opens outward from its fire compartment, that is, in the evacuation direction, and is automatically closed by a door check or the like. On the other hand, in the case of a fire door that is always open, the fire door is normally housed on a side surface such as a pillar, and automatically closed in conjunction with smoke sensors (or heat sensors) 27, 28, and 29. It has become. In the case of a fire door that is always open, an evacuation passage is secured by a dive door separately provided in the closed fire door. The fire door used in this embodiment may be a normally closed type or a normally open type, depending on the structure of the building. When the fire curtain is in the form of a sheet, an opening (slit) for an evacuation passage may be provided in the sheet.
The sections including the stairs form different fire prevention sections.

In the above-described embodiment, a case has been described in which the fireproof curtain device and the fireproof door are provided between the columns 61 to 65, and the fireproof compartments are formed using the respective columns.
Since independent fire sections are formed between the columns 61 to 65, two fire doors must be provided in each of the fire sections. Therefore, as shown in FIG.
The number of fire doors can be reduced by providing the fire prevention curtain device near the middle between the columns 61 to 65 and the columns 71 to 75. FIG. 7 is a diagram corresponding to FIG.
It is a figure which shows the modification of how the fire protection compartment formation system is arrange | positioned on a building space. FIG. 8 is a side view schematically showing a fire curtain device for forming a fire compartment as shown in FIG. 7, and corresponds to FIG. FIG.
5 is substantially the same as FIG. 5 when it has a fire door, and is almost the same as FIG. 2 when it does not have a fire door, and is not shown. In the fire protection compartment forming system shown in FIGS. 7 and 8, the pillar 6 as shown in FIG.
Since the beams 24A and 24B formed on the upper floor slab 23 between the first floor and the column 62 cannot be used, as shown in FIG. 18B, and the brackets 11 of the fireproof curtain device are attached to the brackets 18A and 18B.
A, 12A, 11B, and 12B were attached.
The guide rails of the slat curtains 14A and 14B use beams (not shown) between the columns 62 and 72, between the columns 63 and 73, and between the columns 64 and 74, respectively. Installed. In FIG. 7, these guide rails are indicated by 151A to 155A and 151B to 155B. These guide rails 151A, 151B, 15
Sections including 2A and 152B and guide rails 154A and 1
Two fire doors are provided at two opposing positions of a section including 54B, 155A, and 155B. In this way, in FIG. 8, a fire protection compartment forming system is provided at an intermediate portion of the square building space surrounded by the outer walls 51 to 54,
Thereby, the upper space 57, the middle space 58, and the lower space 5
Nine nine fire compartments are formed.

When a fire prevention section is formed as shown in FIG. 6, since a plurality of columns exist in a part of the fire prevention section, the area of the fire prevention section can be reduced by an amount corresponding to the area of the column. On the other hand, the fire compartment is a space closed by pillars and pillars, so that the space always requires two fire curtain devices and two fire doors. On the other hand, when the fire prevention section 58 is formed as shown in FIG. 8, since the fire prevention section 58 has no pillar, the fire prevention section area can be increased accordingly. Further, since there are no pillars in the fire protection compartment 58, a fixed center pillar must be provided or the area of the fire curtain device used for the fire protection compartment must be increased. In FIG. 8, a total of four fire doors are provided on both sides of the fire compartment 58. However, it is only necessary to provide a fire door that does not hinder evacuation of one fire compartment 58. The number may be less than in FIG. In the embodiment of FIGS. 6 and 8, a case has been described in which the fire protection compartment is formed in the vertical direction when viewed in plan.
It goes without saying that the fire prevention section may be formed in a cross shape or a T-shape, or the fire prevention section may be formed in other complicated shapes. Alternatively, the section may be formed using only a sheet-shaped or shutter-shaped fireproof curtain, and the fireproof curtain may be provided with a plurality of fire doors and fire openings so as to be effective in evacuation. This is because, in the case of a sheet-shaped fire curtain, a fire door through which a person can pass is generally provided instead of the fire door. In either case, the closing of the shutter or fire door in an emergency starts in response to a signal output from the interlock controller when the smoke sensor or heat sensor is activated. The shutters and fire doors to be closed are all shutters and fire doors necessary to make a section where a sensor that senses smoke or heat exists as a fire section.

According to the above-described embodiment, as shown in FIG. 3, the double provision of the fireproof curtain device minimizes the occurrence of dead space. In addition, since the distance between the fire prevention curtain devices is relatively large, the curtain on the side where radiant heat from a fire with a large amount of combustible, a large amount of heat generated by combustible materials, or a fire with a long burning time of combustible materials does not directly touch the fire. This makes it difficult for the fire to spread through the fire curtain device, and the evacuees are less susceptible to damage such as burns. In addition, even if flammable products are placed in a small fire compartment formed by the fire curtain device, inert gas, halogen gas, fire extinguisher, sprinkler, water mist, etc. are used alone or in combination. Combustibles can be cooled or made non-combustible, preventing fire from spreading in small fire compartments, and since the fire curtain itself is cooled, there is a danger of burns and other injuries when evacuating people. Less. In addition, fire curtains in small fire compartments can be cooled by using fire extinguishing agents, sprinklers, and water mist alone or in combination, effectively preventing fire spread across fire prevention sections and effective in evacuating people. It is. Furthermore, by making the distance between the fireproof curtain devices sufficiently large, the air in the compartment will function as a heat insulating material, so that a surface plate having a thickness smaller than that of a conventionally used curtain is used. As a result, a predetermined heat shielding performance can be obtained. The material of the fireproof curtain may be any material as long as it has fireproof performance according to the purpose of use. Specifically, iron,
It can be made of a fire-resistant sheet, wooden, fire-resistant plastic, or a composite of these.

In the section formed by the fireproof curtain device, an illumination having an illuminance on the floor surface of about 1 lux or more may be provided so as to make the inside of the section bright so as not to hinder the evacuation. The power supply for this lighting is operated by an emergency power supply. This is because when a person is left in the section, the visibility in the section is increased and the emergency exit is easily recognized.

Further, in the above-described embodiment, the fire prevention curtain device which descends from the inside of the building when a fire occurs is described as an example. However, in addition to this, a shielding member for fire prevention may be extended by a horizontal pulling system. The present invention can be similarly applied to those which are fed out in an ascending manner.

[0031]

As described above, according to the fire-prevention compartment forming system of the present invention, fire spread between fire-prevention compartments defined by the fire-prevention curtain device and the curtain on the non-fire side can be performed without reducing the sales floor area. There is an effect that a temperature rise can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a conventional fire curtain device.

FIG. 2 is a front view of the fire curtain device of FIG. 1;

FIG. 3 is another side view schematically showing a conventional fire curtain device.

FIG. 4 is a side view schematically showing a fire curtain device and a fire door used in the fire compartment forming system according to the present invention.

FIG. 5 is a front view of the fire curtain device and the fire door of FIG. 4;

FIG. 6 is a view showing an example of how a fire prevention compartment forming system is arranged in a building space by the fire prevention curtain device and the fire door shown in FIGS. 4 and 5.

FIG. 7 is a diagram showing a modified example of how the fire prevention section forming system is arranged in a building space.

8 is a side view schematically showing a fire curtain device used in the fire compartment forming system shown in FIG.

[Explanation of symbols]

11, 12, 11A, 11B, 12A, 12B ... bracket, 13, 13A, 13B ... winding shaft, 14, 1
4A, 14B ... slat curtain, 15, 16, 15
A, 15B, 16A, 16B, 151A to 155A, 1
51B to 155B: guide rail, 18A, 18B: bracket, 20: slab, 21, 22, 61 to 65, 7
1-78, 81-88 ... pillar, 23 ... upper floor slab, 24,
24A, 24B ... beam, 25 ... ceiling, 26, 26A, 26
B: Opening (forage), 27, 28, 29: Smoke sensor (or heat sensor), 31 to 33: Combustible material (commodity), 41
... Piping equipment, 42 ... Nozzle

Claims (8)

[Claims] 1. A first fire prevention means for forming a predetermined fire protection section in the building by extending a first shielding member into the building to partition the space, and a first fire prevention means of the first fire prevention means. In a fire-blocking section forming system comprising: a second fire-blocking unit that feeds out a second blocking member at a predetermined interval with respect to the shielding member and forms the fire-blocking section together with the first shielding member. A fire compartment formation system characterized in that the interval is set to be equal to or greater than the interval at which a person can pass. 2. The lateral opening of a fire door according to claim 1, wherein the predetermined distance is in contact with a section formed between the first shielding member and the second shielding member. A fire compartment formation system, wherein the interval is not less than about one-half and not more than about three times the opening interval. 3. The fire protection compartment forming system according to claim 1, wherein the predetermined interval is equal to or less than an interval between a beam above the building and a beam adjacent to the beam. 4. The fire protection compartment forming system according to claim 3, wherein the first fire protection means is provided on a beam above the building, and the second fire protection means is provided on a beam adjacent to the beam. . 5. The structure according to claim 1, 2 or 3, wherein the first fire protection means is provided on a beam above the building, and the second fire protection means is provided on a support member above the building different from the beam. A fire compartment formation system, characterized in that: 6. The fire protection compartment forming system according to claim 1, wherein the first and second fire protection means are provided on a support member other than a beam above the building. 7. The first and second shields according to claim 1, wherein a section between the first and second shield members forms one fire protection section. A fire compartment formation system, wherein each member is provided with a fire door or a fire port. 8. The discharge device according to claim 1, wherein discharge means for discharging gas, water, fire extinguisher, or the like is provided in a section formed between the first and second shielding members. A fire compartment formation system, characterized in that: