JP3166551B2 - Fire and smoke prevention equipment - Google Patents
Fire and smoke prevention equipmentInfo
- Publication number
- JP3166551B2 JP3166551B2 JP10120195A JP10120195A JP3166551B2 JP 3166551 B2 JP3166551 B2 JP 3166551B2 JP 10120195 A JP10120195 A JP 10120195A JP 10120195 A JP10120195 A JP 10120195A JP 3166551 B2 JP3166551 B2 JP 3166551B2
- Authority
- JP
- Japan
- Prior art keywords
- fire
- smoke
- shutter
- fireproof
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、防火区画内を防火防
煙鋼製シャッタにより遮断する防火防煙設備に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire and smoke prevention facility for shutting off the inside of a fire protection section by a fire and smoke prevention steel shutter.
【０００２】[0002]
【従来の技術】建築基準法では防火区画が必要とされる
箇所には耐火構造の床もしくは壁または甲種防火戸また
は乙種防火戸で仕切らなければならない。2. Description of the Related Art According to the Building Standards Law, a place where a fire compartment is required must be separated by a floor or wall of a fireproof structure, a class A fire door or a class B fire door.
【０００３】防火防煙戸の一つに図４に示す防火防煙鋼
製シャッタ１がある。この防火防煙鋼製シャッタ１は図
の一部に拡大して示すように、鋼製の多数のスラット１
ａを継手部１ｂを介して折曲可能に連結したもので、通
常状態は天井裏に巻取収納し、火災が起きたら防火区画
内に繰出し展長することで、防火区画内を火災発生区域
２ａと、非発生区域２ｂとに遮断する。また、防火防煙
シャッタを鋼製スラットを使用しない不燃性カーテンと
し、この両面に火災時に散水することが知られている
（特開平６−７０９９１号公報参照）。[0003] One of the fireproof and smokeproof doors is a fireproof and smokeproof steel shutter 1 shown in FIG. This fire and smoke resistant steel shutter 1 has a large number of steel slats 1 as shown in a partially enlarged view.
a is connected via a joint 1b so as to be bendable. In a normal state, it is wound up and stored in the back of a ceiling, and when a fire occurs, it is extended into a fire prevention compartment to extend the fire inside the fire prevention compartment. 2a and the non-occurrence area 2b. It is also known that a fireproof smokeproof shutter is made of a nonflammable curtain that does not use steel slats, and water is sprayed on both surfaces of the shutter in the event of a fire (see JP-A-6-70991).
【０００４】[0004]
【発明が解決しようとする課題】該当する防火防煙鋼製
シャッタ１が最も火元に近い場合、火炎３による熱のた
め剛性が低下してスラット１ａ間の継手部１ｂに隙間を
生じ、火炎３や発生した煙の圧力により隙間から非発生
区域２ｂ側に向けて煙が洩れだす。When the corresponding fireproof and smokeproof steel shutter 1 is closest to the source of the fire, the rigidity is reduced due to the heat generated by the flame 3 and a gap is formed in the joint 1b between the slats 1a. 3 and the pressure of the generated smoke causes the smoke to leak from the gap toward the non-generation area 2b.
【０００５】特に防火防煙鋼製シャッタ１の幅が広いほ
ど継ぎ目１ｂの剛性は低く、また熱による防煙性能の低
下傾向が高くなる。このため防火防煙鋼製シャッタの幅
は５ｍ以内に規制されており、例えばアトリウムなどの
大空間吹き抜けと各階との接続部分のように、その開口
幅が極めて大きな防火区画の場合、防火防煙鋼製シャッ
タ１を幅方向に複数分割し、シャッタレールガイドによ
り隣接する防火防煙鋼製シャッタ１同士を連結しなけれ
ばならず、空間の一体化を損ない、通過の障害となって
いた。また、不燃性カーテンでは、火災時の爆発等によ
り損傷を受けるおそれがあった。[0005] In particular, the wider the width of the fireproof and smokeproof steel shutter 1, the lower the rigidity of the seam 1b and the higher the tendency of the smokeproof performance to decrease due to heat. For this reason, the width of the fire-resistant smoke-proof steel shutter is restricted to 5 m or less. For example, in the case of a fire-protection section with a very large opening width, such as the connection between a large space such as an atrium and each floor, the fire prevention The steel shutter 1 must be divided into a plurality of parts in the width direction, and the adjacent fireproof and smokeproof steel shutters 1 must be connected to each other by a shutter rail guide. In addition, the nonflammable curtain may be damaged by explosion in a fire.
【０００６】それゆえこの発明の目的は、火災時におけ
る防火防煙鋼製シャッタに対する熱的影響を防止し、防
煙性能を向上させた防火防煙設備を提供することにあ
る。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a fire-and-smoke and smoke-prevention facility in which the thermal influence on a fire-and-smoke-proof steel shutter at the time of a fire is prevented and the smoke-and-smoke performance is improved.
【０００７】[0007]
【課題を解決するための手段】この発明は、防火区画内
の天井内に収装され、火災発生により防火区画内に垂下
されて該防火区画を仕切る防火防煙鋼製シャッタと、該
防火防煙鋼製シャッタを挟んで天井面に配置され、かつ
前記防火防煙鋼製シャッタ面に散水面を向けるように調
整可能にした一対の散水ヘッドを備え、火災発生初期に
おいて非発生区域側に位置する散水ヘッドのみ散水動作
させるものである。According to the present invention, there is provided a fireproof and smoke-proof steel shutter which is housed in a ceiling in a fireproof compartment and is suspended in the fireproof compartment when a fire occurs to partition the fireproof compartment. A pair of watering heads arranged on the ceiling surface with the smoke steel shutter interposed therebetween and adjustable so that the water spraying surface is directed to the fireproof and smokeproof steel shutter surface is provided .
Only the watering head located on the non-occurrence area side
It is to let .
【０００８】[0008]
【０００９】[0009]
【作用】火災時に防火防煙鋼製シャッタに散水すること
により防火防煙鋼製シャッタの加熱やこれによる剛性低
下がなく、継手部が開くことによる煙の流通を防止す
る。By spraying water on the fire and smoke resistant steel shutter in the event of a fire, the fire and smoke resistant steel shutter is not heated and its rigidity is not reduced, and the flow of smoke due to the opening of the joint is prevented.
【００１０】また、火災発生側の散水ヘッドの散水動作
はなされないことから、火災発生区画内の煙は層状に滞
留したままとなる。一方防火防煙鋼製シャッタの非発生
側の面は散水されるので温度上昇を防止できる。[0010] Further , since the water spraying operation of the water spray head on the fire occurrence side is not performed, the smoke in the fire occurrence section remains in a layered manner. On the other hand, the surface on the non-generating side of the fire and smoke resistant steel shutter is sprinkled, so that the temperature can be prevented from rising.
【００１１】[0011]
【実施例】図１はこの発明による防火防煙設備を示す説
明図であり、１０は床、１２は天井であり、天井１２の
天井裏空間には巻取装置１４が配置され、床１０と天井
１２によって囲われた防火区画１６を左右に仕切る前記
と同様の多数のスラットを継手部で連結した防火防煙鋼
製シャッタ１８が巻取状態に収装されている。巻取装置
１４はスリット１４ａを下面に開口したシャッタケース
１４ｂと、防火防煙鋼製シャッタ１８の巻取軸１４ｃ及
び巻取軸１４ｃの巻取り駆動用のモータ１４ｄまたは手
動巻上装置及び自動降下制御用ストッパーを備えてい
る。FIG. 1 is an explanatory view showing a fire and smoke prevention equipment according to the present invention. In FIG. 1, reference numeral 10 denotes a floor, 12 denotes a ceiling, and a winding device 14 is disposed in the space above and below the ceiling 12, and A shutter 18 made of fireproof and smokeproof steel, in which a number of slats similar to those described above, which divide the fireproof section 16 surrounded by the ceiling 12 to the left and right, is connected by a joint, is housed in a wound state. The take-up device 14 includes a shutter case 14b having a slit 14a opened on the lower surface, a take-up shaft 14c of a fire and smoke resistant steel shutter 18, a motor 14d for driving take-up of the take-up shaft 14c, or a manual hoisting device and an automatic lowering device. Equipped with a control stopper.
【００１２】また天井裏空間には散水用配管２０が配置
され、巻取装置１４の左右において配管２０には分岐配
管２２ａ，２２ｂが接続され、それぞれ天井１２に設け
た散水ヘッド２４ａ，２４ｂに電磁弁２６ａ，２６ｂを
介して連通している。Watering pipes 20 are arranged in the space above the ceiling, and branch pipes 22a and 22b are connected to the pipes 20 on the left and right sides of the winding device 14, and electromagnetic spraying is applied to watering heads 24a and 24b provided on the ceiling 12, respectively. They communicate via valves 26a and 26b.
【００１３】各散水ヘッド２４ａ，２４ｂは、その散水
面を防火防煙鋼製シャッタ１８の表裏面に散水可能な位
置に取り付けられており、図では各散水ヘッド２４ａ，
２４ｂは一つずつしか描かれていないが、防火防煙鋼製
シャッタ１８の幅方向に沿って複数配列され防火防煙鋼
製シャッタ１８の面に沿って一様に冷却水が噴霧され
る。Each of the watering heads 24a and 24b has a watering surface attached to a position where water can be sprayed on the front and back surfaces of the fire and smoke resistant steel shutter 18. In the figure, each of the watering heads 24a and 24b is mounted.
Although 24b is illustrated only one by one, cooling water is sprayed uniformly along the surface of the fire-and-smoke-proof steel shutter 18 in a plurality arranged along the width direction of the fire-and-smoke-proof steel shutter 18.
【００１４】天井面の複数箇所には火災検知器２８が配
置され、この検知出力は制御部３０ａ，３０ｂに入力さ
れる。制御部３０ａ，３０ｂは防火防煙鋼製シャッタ１
８を挟んで二系統に分離されており、いずれも火災検知
器２８の検知出力により図２に示すようにモータ１４ｄ
を駆動し、または図示しないストッパーを解除して防火
防煙鋼製シャッタ１８を自重にて下降させ、空間１６を
火災の発生区域１６ａと、非発生区域１６ｂとに仕切
る。[0014] Fire detectors 28 are arranged at a plurality of locations on the ceiling surface, and their detection outputs are input to the control units 30a and 30b. The control units 30a and 30b are a fireproof and smokeproof steel shutter 1
8, both of which are separated by the detection output of the fire detector 28 as shown in FIG.
Or the stopper (not shown) is released to lower the fireproof and smokeproof steel shutter 18 by its own weight to partition the space 16 into a fire occurrence area 16a and a non-fire occurrence area 16b.
【００１５】同時に火災発生区域１６ａ側の制御部３０
ａは反対側区画の分岐配管２２ｂに接続した電磁弁２６
ｂを開放し、また図３に示すようにタイマ３２ａを介し
て火災発生区画１６ａ側の電磁弁２６ａも所定時間遅れ
で開放する。なお、他方側制御部３０ｂも同様の制御を
行なう。タイマ３２ａの設定時間は、被災者の退避時間
を見込んで設定される。At the same time, the control unit 30 on the side of the fire area 16a
a is an electromagnetic valve 26 connected to the branch pipe 22b in the opposite section.
b, and as shown in FIG. 3, the solenoid valve 26a on the fire section 16a side is also opened with a predetermined time delay via the timer 32a. The other control unit 30b performs the same control. The set time of the timer 32a is set in consideration of the evacuation time of the victim.
【００１６】この結果、火災発生初期段階では図２に示
すように防火防煙鋼製シャッタ１８の非火災発生区域１
６ｂ側の表面のみが散水Ｗされ、発生した火炎Ａによる
熱を奪い表面を冷却する。火災と同時に発生した煙の層
Ｂは天井１０面から徐々に溜まるが、その下部は人が生
存可能な空間となる。As a result, in the initial stage of the fire occurrence, as shown in FIG.
Only the surface on the 6b side is sprayed with water W, and takes heat from the generated flame A to cool the surface. The layer B of smoke generated simultaneously with the fire gradually accumulates from the ceiling 10, but the lower portion is a space where humans can survive.
【００１７】時間経過に応じて火炎Ａが激しくなると、
所定時間経過後にタイマ３２ａのタイムアップにより、
図３に示すように防火防煙鋼製シャッタ１８の火災発生
区画１６ａ側の面にも散水Ｗがなされ、冷却効果を増強
する。なお、この状態では煙の層Ｂは撹乱されるが、こ
の時間までには被災者の退避が完了することを前提とし
ており、以後は煙の撹乱よりも防火防煙鋼製シャッタ１
８の遮断状態確保に重みがおかれる。When the flame A becomes intense as time passes,
After the predetermined time has elapsed, the timer 32a times out,
As shown in FIG. 3, water is sprayed on the surface of the fire-resistant section 16a of the fire-and-smoke-proof steel shutter 18 to enhance the cooling effect. In this state, the smoke layer B is disturbed. However, it is assumed that the evacuation of the victim is completed by this time.
8 is weighted to secure the cutoff state.
【００１８】図２または図３に示す火災発生状態から鎮
火すると、自動または手動復帰操作により散水Ｗが停止
し、さらにはモータ１４ｄの逆転または手動巻上げ操作
により防火防煙鋼製シャッタ１８は巻き上げられ、再び
図１に示す通常状態に復帰する。When the fire is extinguished from the fire occurrence state shown in FIG. 2 or 3, the sprinkling W is stopped by an automatic or manual return operation, and further, the shutter 18 made of fire and smoke resistant steel is wound up by a reverse rotation of the motor 14d or a manual winding up operation. Then, it returns to the normal state shown in FIG. 1 again.
【００１９】好ましくは、火災区域側の熱感知器が所定
以上の温度上昇を感知した場合、タイマーに関係なく散
水させて、防火区画を防御する。また、防火防煙鋼製シ
ャッタ１８の両側に十分な量の散水を確保する散水ヘッ
ドとその配管を設置した場合、タイマーによる制御では
なく、常に火災発生区域の反対側からの散水を行って
も、上記効果を得られる。Preferably, when the heat detector on the fire area side detects a temperature rise of a predetermined value or more, water is sprayed regardless of the timer to protect the fire protection compartment. In addition, when a watering head and a pipe for securing a sufficient amount of watering are installed on both sides of the fireproof and smoke-proof steel shutter 18, watering from the opposite side of the fire occurrence area is always performed instead of controlling by a timer. The above effects can be obtained.
【００２０】さらに、火災の延焼が主な目的であり、人
的避難については考慮しなくてよいような場合は、タイ
マー制御なしに、当初よりシャッタの両側に散水しても
よい。 なお、実施例では防火防煙鋼製シャッタ１８を
火災検知に応じた自動開閉としているが手動スイッチ操
作により開閉操作することもできる。Further, if the main purpose is to spread the fire and it is not necessary to consider human evacuation, water may be sprayed on both sides of the shutter from the beginning without timer control. In the embodiment, the shutter 18 made of fire and smoke resistant steel is automatically opened and closed according to the detection of a fire, but can be opened and closed by operating a manual switch.
【００２１】[0021]
【発明の効果】この発明による防火防煙設備は、散水に
よって防火防煙鋼製シャッタの加熱やこれによる剛性低
下がなく、スラットの継手部が開くことによる煙の流通
を防止するため、防煙性能を向上できる。また、これに
より防火防煙鋼製シャッタの幅を大きく取ることが可能
となり、開閉の自動化や非常時における迅速な対応が容
易となる。The fire and smoke prevention equipment according to the present invention prevents the flow of smoke due to the opening of the joint of the slat without the heating of the fire and smoke prevention steel shutter due to water sprinkling and the decrease in rigidity due to the heating. Performance can be improved. In addition, this makes it possible to increase the width of the fire and smoke resistant steel shutter, which facilitates automatic opening and closing and quick response in an emergency.
【００２２】また、火災発生側の散水ヘッドの散水動作
はなされないことから、火災発生区画内の煙は層状に滞
留したままとなり、煙層の下部空間に人が生存する空間
を保持できる。Further , since the water spraying operation of the water spray head on the fire occurrence side is not performed, the smoke in the fire occurrence section remains in a layered manner, and a space where a person lives can be maintained in the space below the smoke layer.
【図１】この発明の防火防煙設備の通常状態を示す説明
図である。FIG. 1 is an explanatory diagram showing a normal state of a fire and smoke prevention facility of the present invention.
【図２】同防火防煙設備の初期作動状態を示す説明図で
ある。FIG. 2 is an explanatory diagram showing an initial operation state of the fire and smoke prevention equipment.
【図３】同防火防煙設備の所定時間経過後の作動状態を
示す説明図である。FIG. 3 is an explanatory diagram showing an operation state of the fire and smoke prevention equipment after a predetermined time has elapsed.
【図４】従来の防火防煙設備の作動状態を示す説明図で
ある。FIG. 4 is an explanatory diagram showing an operation state of the conventional fire and smoke prevention equipment.
１０ 天井 １４ 巻取装置 １６ 防火区画 １８ 防火防煙鋼製シャッタ ２４ａ，２４ｂ 散水ヘッド DESCRIPTION OF SYMBOLS 10 Ceiling 14 Winding device 16 Fireproof section 18 Fireproof and smokeproof steel shutter 24a, 24b Sprinkling head
Claims (1)
生により防火区画内に垂下されて該防火区画を仕切る防
火防煙鋼製シャッタと、該防火防煙鋼製シャッタを挟ん
で天井面に配置され、かつ前記防火防煙鋼製シャッタ面
に散水面を向けるように調整可能にした一対の散水ヘッ
ドを備え、火災発生初期において、非発生区域側に位置
する散水ヘッドのみ散水動作させることを特徴とする防
火防煙設備。1. A shutter made of fire and smoke resistant steel that is housed in a ceiling in a fire prevention compartment and is suspended in the fire prevention compartment when a fire occurs to partition the fire prevention compartment; Surface, and provided with a pair of watering heads that can be adjusted so that the watering surface is directed to the fire-resistant smoke-proof steel shutter surface, and is located on the non-fire-producing area side in the early stage of fire occurrence.
Fire and smoke prevention equipment, characterized in that only the sprinkling head is sprayed .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10120195A JP3166551B2 (en) | 1995-04-25 | 1995-04-25 | Fire and smoke prevention equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10120195A JP3166551B2 (en) | 1995-04-25 | 1995-04-25 | Fire and smoke prevention equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08294543A JPH08294543A (en) | 1996-11-12 |
| JP3166551B2 true JP3166551B2 (en) | 2001-05-14 |
Family
ID=14294324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10120195A Expired - Fee Related JP3166551B2 (en) | 1995-04-25 | 1995-04-25 | Fire and smoke prevention equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3166551B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002306620A (en) * | 2001-04-13 | 2002-10-22 | Bunka Shutter Co Ltd | Fire prevention division forming system |
| JP5930722B2 (en) * | 2012-01-13 | 2016-06-08 | 三和シヤッター工業株式会社 | Fire shutter and fire opening / closing body |
| JP7327926B2 (en) * | 2018-11-16 | 2023-08-16 | ホーチキ株式会社 | Disaster prevention equipment |
| JP7304146B2 (en) * | 2018-11-21 | 2023-07-06 | ホーチキ株式会社 | Sheet deployment device for disaster prevention equipment |
| KR102212160B1 (en) * | 2018-11-30 | 2021-02-04 | (주)트루스 | Fire Shutter for Vessel |
-
1995
- 1995-04-25 JP JP10120195A patent/JP3166551B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08294543A (en) | 1996-11-12 |
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