JPS63192465A - Automatic fire extinguishing apparatus - Google Patents
Automatic fire extinguishing apparatusInfo
- Publication number
- JPS63192465A JPS63192465A JP2506987A JP2506987A JPS63192465A JP S63192465 A JPS63192465 A JP S63192465A JP 2506987 A JP2506987 A JP 2506987A JP 2506987 A JP2506987 A JP 2506987A JP S63192465 A JPS63192465 A JP S63192465A
- Authority
- JP
- Japan
- Prior art keywords
- extinguishing agent
- water
- fire
- injection nozzle
- water injection
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- 238000002347 injection Methods 0.000 claims description 47
- 239000007924 injection Substances 0.000 claims description 47
- 239000003795 chemical substances by application Substances 0.000 claims description 34
- 239000000779 smoke Substances 0.000 claims description 21
- 230000007257 malfunction Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- DYOWGCNNYMLFQV-UHFFFAOYSA-N 2-acetyloxybenzoic acid;2-hydroxybenzamide;1,3,7-trimethylpurine-2,6-dione Chemical compound NC(=O)C1=CC=CC=C1O.CC(=O)OC1=CC=CC=C1C(O)=O.CN1C(=O)N(C)C(=O)C2=C1N=CN2C DYOWGCNNYMLFQV-UHFFFAOYSA-N 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は建物等における火災の発生を検知して自動的
に消火するための自動消火装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic fire extinguishing system for detecting the occurrence of a fire in a building or the like and automatically extinguishing the fire.
従来の自動消火装置は、一般に、天井に設置したスプリ
ンクラ−ヘッドに高架水槽または圧力りンク等からの配
管によって常時水圧を加えておき、火災の熱によってヘ
ッドが作動温度に達し、開放されて、散水が開始される
と、ヘッドと高架水槽等の加圧水源との間の配管に水が
流れ、配管途中に設けである自動警報弁が流水の作用に
よって作動し、電気的または機械的に警報を発するのと
同時に、電気制御盤を介してスプリンクラ−ポンプを起
動するようになっている。あるいは、散水開始による圧
力タンク内の圧力低下に伴い圧力スイッチを作動させて
、加圧送水装置を起動させるようにしたものもある。も
ちろん、スプリンクラ−専用の送水口を設けることもあ
る。また、火災検知手段として、煙感知器と熱感知器を
併用したものや、さらには水噴射と粉末等の消火剤の噴
射を併用した自動消火装置も開発されている。Conventional automatic fire extinguishing systems generally keep water pressure constantly applied to a sprinkler head installed on the ceiling via piping from an elevated water tank or pressure link, and when the head reaches operating temperature due to the heat of the fire, it is opened. When watering starts, water flows into the piping between the head and a pressurized water source such as an elevated water tank, and an automatic alarm valve installed in the piping is activated by the action of the flowing water, and an alarm is issued electrically or mechanically. At the same time as the fire occurs, the sprinkler pump is activated via an electric control panel. Alternatively, there is also a system in which a pressure switch is activated as the pressure in the pressure tank decreases due to the start of water sprinkling, thereby starting the pressurized water supply device. Of course, a dedicated water inlet for sprinklers may be provided. In addition, fire detection means that use a combination of a smoke detector and a heat sensor, and automatic fire extinguishing systems that use a combination of water injection and extinguishing agent such as powder have also been developed.
しかしながら、上記のような従来の自動消火装置におい
ては、火災検知手段からの誤報あるいは誤認による誤動
作が起き易く、誤動作での水噴射による損害も少なから
ず発生しており、また実際に火災が発生した場合におい
ても、水噴射が鎮火によって自動的には停止しないため
、いわゆる過水被害が大きくなるという問題があった。However, in the conventional automatic fire extinguishing system as described above, malfunctions are likely to occur due to false alarms or misidentifications from the fire detection means, and there is a considerable amount of damage caused by water jets due to malfunctions, and there are cases where a fire actually occurs. Even in such cases, water injection does not automatically stop when the fire is extinguished, so there is a problem that so-called overwater damage increases.
この発明は上記の事情に鑑みなされたもので、その目的
は、誤報または誤認による誤動作および過水被害を最小
限に止めることのできる自動消火装置を提供することに
ある。This invention was made in view of the above circumstances, and its purpose is to provide an automatic fire extinguishing system that can minimize malfunctions and damage caused by overwatering due to false alarms or misidentifications.
上記の問題点を解決するためになされたこの発明の自動
消火装置は、火災発生の監視対象の各室毎に設けられた
消火剤噴射ノズル、水噴射ノズル、煙感知器、および熱
感知器と；消火剤供給源と上記各消火剤噴射ノズルとの
間の管路に設けられた消火剤用電磁弁と；加圧水源と上
記各水噴射ノズルとの間の管路を開閉する水用電磁弁と
；上記煙感知器または熱感知器の出力信号を人力して、
所定のプログラムにより、その入力が真の火災情報か誤
認情報であるかを判断し、真の火災情報であると判断し
た場合は、その煙感知器および熱感知器のある室の消火
剤噴射ノズルに連なる消火剤用電磁弁を開かせて消火剤
噴射ノズルより消火剤を噴射させ、この消火剤噴射の終
了時点で消火が完了したか否かの判断を行ない、消火が
完了していないと判断すると、その室の水噴射ノズルに
連なる水用電磁弁を開かせて水噴射ノズルより加圧水を
噴射させ、この加圧水噴射によって熱感知器の出力信号
がオフになると、その瞬間から所定時間だけ加圧水噴射
を持続して消火を完全にならしめた後その水用を磁弁を
閉じさせ、その後煙感知器または熱感知器の出力信号が
入力された場合は、再度水噴射ノズルを開かせ、その加
圧水噴射によりそれらの出力信号がオフとなってから上
記所定時間後に水噴射ノズルを閉じさせる動作を煙感知
器および熱感知器の出力信号がオンとならなくなるまで
繰返す制御部と；を具備したことを特徴とする。The automatic fire extinguishing system of the present invention, which was developed to solve the above problems, has a fire extinguisher injection nozzle, a water injection nozzle, a smoke detector, and a heat detector installed in each room to be monitored for fire occurrence. ; A solenoid valve for extinguishing agent provided in the pipeline between the extinguishing agent supply source and each of the above-mentioned water injection nozzles; and a solenoid valve for water that opens and closes the pipeline between the pressurized water source and each of the above-mentioned water injection nozzles. and; by manually inputting the output signal of the smoke detector or heat detector,
A predetermined program determines whether the input is true fire information or false information, and if it is determined to be true fire information, the extinguishing agent injection nozzle in the room where the smoke detector and heat detector are located. The extinguishing agent solenoid valve connected to the extinguishing agent is opened and extinguishing agent is injected from the extinguishing agent injection nozzle, and at the end of this extinguishing agent injection, it is determined whether the extinguishing has been completed or not, and it is determined that the extinguishing has not been completed. Then, the water solenoid valve connected to the water injection nozzle in that chamber is opened and pressurized water is injected from the water injection nozzle.When the output signal of the heat sensor turns off due to this pressurized water injection, pressurized water is injected for a predetermined period of time from that moment. After the extinguishment is completely extinguished, the magnetic valve is closed, and if an output signal from a smoke detector or heat sensor is input after that, the water injection nozzle is opened again and the pressurized water is and a control unit that repeats the operation of closing the water injection nozzle after the predetermined period of time after the output signals of the smoke detector and the heat sensor are turned off by injection until the output signals of the smoke detector and the heat sensor are no longer turned on. Features.
以下、この発明の自動消火装置の一実施例について図面
を参照しつつ説明する。An embodiment of the automatic fire extinguishing system of the present invention will be described below with reference to the drawings.
この実施例において、火災発生の監視対象たる各室１に
は、煙感知器１１、熱感知器１２、消火剤噴射ノズル１
３、および水噴射ノズル１４、が設けられている。消火
剤噴射用ノズル１３ば、消火剤用１磁弁２を介して、Ａ
ＢＣ粉末消火剤、アワ消火剤等の消火剤供給源に接続さ
れ、水噴射ノズル１４は加圧ポンプ、高架水槽等の加圧
水源に水用電磁弁３を介して接続されている。In this embodiment, each room 1 to be monitored for fire occurrence includes a smoke detector 11, a heat detector 12, and a fire extinguishing agent injection nozzle 1.
3 and a water injection nozzle 14 are provided. The extinguishing agent injection nozzle 13, A
It is connected to a fire extinguishing agent supply source such as a BC powder extinguishing agent or a millet extinguishing agent, and the water injection nozzle 14 is connected to a pressurized water source such as a pressure pump or an elevated water tank via a water solenoid valve 3.
上記煙感知器１１あるいは熱感知器１２の出力信号を入
力して消火剤用電磁弁２および水用電磁弁３を制御する
制御部はマイクロコンピュータ（ＣＰｔＪ）５、および
ＣＰｔＪ５からの指令により作動さすべき消火剤用電磁
弁２および水用電磁弁３を選択して駆動する電磁弁選択
駆動回路４よりなる。また、符号６で示すコントロール
ボックスには、警報灯（ＰＬ）８１、警報ブザ−（ＢＺ
）６２、自動−手動切換スイッチ６３、火災発生場所表
示部６４等が設けられている。なお、符号７は屋外設置
の警報ブザ−（ＢＺ）を示す。The control section that inputs the output signal of the smoke detector 11 or heat sensor 12 and controls the extinguishing agent solenoid valve 2 and the water solenoid valve 3 is operated by commands from the microcomputer (CPtJ) 5 and CPtJ5. The solenoid valve selection drive circuit 4 selectively drives the extinguishing agent solenoid valve 2 and the water solenoid valve 3. In addition, the control box indicated by numeral 6 includes a warning light (PL) 81 and a warning buzzer (BZ).
) 62, an automatic-manual changeover switch 63, a fire location display section 64, and the like. Note that the reference numeral 7 indicates a warning buzzer (BZ) installed outdoors.
次に、この実施例の自動消火装置の動作をｃｐＵ５の動
作プログラムの一例と共にアルゴリズム的に説明する。Next, the operation of the automatic fire extinguishing system of this embodiment will be explained algorithmically along with an example of the operation program of the CPU 5.
■ ＣＰＵ５は、煙感知器１１が所定濃度以上の煙を所
定時間（たとえば３０秒）以上感知した時、その出力信
号に応動して、ブザー６２および屋外設置ブザー７を鳴
動させ、警報灯６１を動作させると共に、火災発生場所
表示部６４の対応する室番表示灯を点滅させる。■ When the smoke detector 11 detects smoke at a predetermined concentration or higher for a predetermined period of time (for example, 30 seconds), the CPU 5 causes the buzzer 62 and the outdoor buzzer 7 to sound, and turns on the warning light 61 in response to the output signal. At the same time, the corresponding room number indicator light on the fire occurrence location display section 64 is made to blink.
■ 上記の出力信号が所定のキャンセル時間（たとえば
５秒）以内に消滅すると、誤報と判断して、上記■の動
作を停止し、最初の警戒待機状態に戻る。(2) If the above output signal disappears within a predetermined cancellation time (for example, 5 seconds), it is determined to be a false alarm, the operation (2) above is stopped, and the system returns to the initial alert standby state.
■ ＣＰＵ５は、熱感知器１２が所定温度（たとえば７
０℃）以上の熱を恩知した時、その出力信号に応動して
、ブザー６２および屋外設置ブザー７を鳴動させ、警報
灯６１を動作させると共に、火災発生場所表示部６４の
対応する室番表示灯を点滅させる。■ The CPU 5 detects that the heat sensor 12 has reached a predetermined temperature (for example, 7
0°C) or more, in response to the output signal, the buzzer 62 and the outdoor buzzer 7 sound, the alarm light 61 is activated, and the corresponding room number is displayed on the fire location display unit 64. Make the indicator light blink.
■ 上記■の熱感知器１２の出力信号が所定のキャンセ
ル時間（たとえば１０秒）以内に消滅すると、ＣＰＵ５
は誤報と判断して、上記■の動作を停止し、最初の警戒
待機状態に戻る。■ If the output signal of the heat sensor 12 mentioned in ■ above disappears within a predetermined cancellation time (for example, 10 seconds), the CPU 5
is determined to be a false alarm, the operation described in (2) above is stopped, and the system returns to the initial alert standby state.
なお、上記■および■において、ブザー６２または７の
鳴動により火災発生場所表示部６４を見た発見者が、室
番表示灯の点滅により、煙発生だけの初期段階であるか
ら手動消火可能と判断した場合は、自動−手動切換スイ
ッチを手動に切換えることにより、自動モードによる消
火剤噴射、水噴射を免れ、これらの噴射による損害を防
止することができる。In addition, in the above cases (■) and (■), the discoverer who saw the fire occurrence location display section 64 when the buzzer 62 or 7 sounded, determined that the fire could be extinguished manually because the room number indicator light was flashing and the fire was in the initial stage of only smoke generation. In such a case, by switching the automatic/manual changeover switch to manual mode, it is possible to avoid fire extinguisher injection and water injection caused by the automatic mode, and prevent damage caused by these injections.
■（十〇） 上記■のキャンセル時間を超えて煙感知器
１１の出力信号が持続し、かつ温度上昇により上記■が
行なわれると、ＣＰＵ５は、確認のため、上記キャンセ
ル時間の終りから所定時間（たとえば３秒）後に電磁弁
選択回路４を介して消火剤用電磁弁２を開かせ、消火剤
噴射ノズル１３より消火剤を噴射させる。■ (100) If the output signal of the smoke detector 11 continues beyond the cancellation time of the above ■, and the above ■ is performed due to a rise in temperature, the CPU 5 will confirm that the After (for example, 3 seconds), the extinguishing agent solenoid valve 2 is opened via the solenoid valve selection circuit 4, and the extinguishing agent is injected from the extinguishing agent injection nozzle 13.
■ 煙発生の少ない可燃性物質等による火災発生におい
て、上記■を経ることなく上記■が実行され、上記■の
キャンセル時間を超えて熱感知器１２の出力信号が持続
すると、ＣＰＵ５は、確認のため、そのキャンセル時間
の終りから所定時間（たとえば２秒）後に電磁弁選択駆
動回路４を介して消火剤用電磁弁２を開かせ、消火剤噴
射ノズル１３より消火剤を噴射させる。■ In the event of a fire caused by a combustible material that generates little smoke, if the above ■ is executed without going through the above ■, and the output signal of the heat sensor 12 continues beyond the cancellation time of the above ■, the CPU 5 will confirm the confirmation. Therefore, after a predetermined time (for example, 2 seconds) from the end of the cancellation time, the extinguishing agent solenoid valve 2 is opened via the solenoid valve selection drive circuit 4, and the extinguishing agent is injected from the extinguishing agent injection nozzle 13.
■ 上記■（十〇）または■の実行において、消火剤噴
射持続時間（たとえば２６〜３０秒）内に、あるいはこ
の持続時間の終りから所定時間以内に熱感知器１２の出
力信号がオフとならない時は、ＣＰＵ５は消火未完了と
判断し、電磁弁選択駆動回路４を介して水用電磁弁３を
開かせ、水噴射ノズル１４より放水させる。■ In carrying out the above (10) or (10), the output signal of the heat sensor 12 does not turn off within the extinguishing agent injection duration (for example, 26 to 30 seconds) or within a predetermined time from the end of this duration. At this time, the CPU 5 determines that the extinguishing has not been completed, and opens the water solenoid valve 3 via the solenoid valve selection drive circuit 4 to cause water to be sprayed from the water injection nozzle 14.
■ 上記■の実行により熱感知器１２の出力信号がオフ
となり、室温が常温まで降下したと判断すると、その時
点から所定時間（たとえば１８０秒）後にＣＰＵ５は水
用電磁弁３を閉じさせ、水噴射を停止させる。■ By executing the above ■, the output signal of the heat sensor 12 is turned off, and when it is determined that the room temperature has fallen to room temperature, the CPU 5 closes the water solenoid valve 3 after a predetermined time (for example, 180 seconds) from that point, and Stop injection.
これは、水噴射による鎮火後、残り火等がある場合に消
火を完全ならしめかつ通水被害を最小限に止めるためで
ある。This is to completely extinguish the fire if there are any embers after the fire is extinguished by water injection, and to minimize damage caused by water flow.
■ 上記■の実行後、煙感知器１１または熱感知器１２
の出力信号が再びオンになると、ＣＰＵ５は、再燃発生
と判断し、直ちに上記■を実行し、■および■をこれら
の出力信号がもはやオンとならなくなるまで繰返し実行
する。■ After performing the above ■, the smoke detector 11 or heat detector 12
When the output signal turns on again, the CPU 5 determines that a relapse has occurred, immediately executes the above-mentioned step (1), and repeats steps (2) and (2) until these output signals are no longer turned on.
この発明の自動消火装置によれば、誤作動による消火剤
噴射、水噴射の危険性を著しく小さく抑えつつ実際の火
災を早期に、確実に消火することができ、しかも通水被
害を最小限に止めることができ、諸施設、設備の防災に
著しい貢献をなし得ることは明らかである。According to the automatic fire extinguishing system of the present invention, it is possible to extinguish an actual fire quickly and reliably while significantly minimizing the risk of extinguishing agent injection or water injection due to malfunction, and also to minimize damage caused by water flow. It is clear that this can make a significant contribution to the disaster prevention of various facilities and equipment.
図はこの発明による自動消火装置の一実施例のブロック
回路図である。
２・・・・・・消火剤噴射用電磁弁、３・・・・・・水
噴射用電磁弁、４・・・・・・電磁弁選択駆動回路、５
・・・・・・マイクロコンピュータ（ＣＰＵ） 、１１
・・・・・・煙感知器、１２・・・・・・熱感知器、１
３・・・・・・消火剤噴射ノズル、１４・・・・・・水
噴射ノズル。
手続補正書（放）（酸）The figure is a block circuit diagram of an embodiment of an automatic fire extinguishing system according to the present invention. 2... Solenoid valve for extinguishing agent injection, 3... Solenoid valve for water injection, 4... Solenoid valve selection drive circuit, 5
・・・・・・Microcomputer (CPU), 11
...Smoke detector, 12 ...Heat sensor, 1
3... Fire extinguisher injection nozzle, 14... Water injection nozzle. Procedural amendment (release) (acid)
Claims (1)
ズル、水噴射ノズル、煙感知器、および熱感知器と； 消火剤供給源と上記各消火剤噴射ノズルとの間の管路に
設けられた消火剤用電磁弁と； 加圧水源と上記各水噴射ノズルとの間の管路を開閉する
水用電磁弁と； 上記煙感知器または熱感知器の出力信号を入力して、所
定のプログラムにより、その入力が真の火災情報か誤認
情報であるかを判断し、真の火災情報であると判断した
場合は、その煙感知器および熱感知器のある室の消火剤
噴射ノズルに連なる消火剤用電磁弁を開かせて消火剤噴
射ノズルより消火剤を噴射させ、この消火剤噴射の終了
時点で消火が完了したか否かの判断を行ない、消火が完
了していないと判断すると、その室の水噴射ノズルに連
なる水用電磁弁を開かせて水噴射ノズルより加圧水を噴
射させ、この加圧水噴射によって熱感知器の出力信号が
オフになると、その瞬間から所定時間だけ加圧水噴射を
持続して消火を完全にならしめた後その水用電磁弁を閉
じさせ、その後煙感知器または熱感知器の出力信号が入
力された場合は、再度水噴射ノズルを開かせ、その加圧
水噴射によりそれらの出力信号が消滅してから上記所定
時間後に水噴射ノズルを閉じさせる動作を煙感知器およ
び熱感知器の出力信号が全く発生しなくなるまで繰返す
制御部と； を具備したことを特徴とする自動消火装置。[Scope of Claims] A fire extinguishing agent injection nozzle, a water jet nozzle, a smoke detector, and a heat detector provided in each room to be monitored for fire occurrence; a fire extinguishing agent supply source and each of the above-mentioned fire extinguishing agent injection nozzles; a solenoid valve for extinguishing agent installed in a pipe between the pressurized water source and each of the water injection nozzles; an output signal of the smoke detector or heat sensor; A predetermined program determines whether the input is true fire information or false information, and if it is determined to be true fire information, the room with the smoke detector and heat detector is The extinguishing agent solenoid valve connected to the extinguishing agent injection nozzle is opened and the extinguishing agent is injected from the extinguishing agent injection nozzle. At the end of this extinguishing agent injection, it is determined whether the extinguishing has been completed or not, and the extinguishing is completed. If it is determined that the water is not being used, the water solenoid valve connected to the water injection nozzle in that room is opened and pressurized water is injected from the water injection nozzle.When the output signal of the heat sensor turns off due to this pressurized water injection, from that moment on After the pressurized water injection is continued for a predetermined period of time to completely extinguish the fire, the water solenoid valve is closed, and if an output signal from a smoke detector or heat sensor is input after that, the water injection nozzle must be opened again. and a control unit that repeats the operation of closing the water injection nozzle after the predetermined period of time after those output signals disappear due to the pressurized water injection until the output signals of the smoke detector and the heat sensor are no longer generated; An automatic fire extinguishing system characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2506987A JPS63192465A (en) | 1987-02-05 | 1987-02-05 | Automatic fire extinguishing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2506987A JPS63192465A (en) | 1987-02-05 | 1987-02-05 | Automatic fire extinguishing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63192465A true JPS63192465A (en) | 1988-08-09 |
Family
ID=12155636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2506987A Pending JPS63192465A (en) | 1987-02-05 | 1987-02-05 | Automatic fire extinguishing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63192465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810350A (en) * | 1995-04-10 | 1996-01-16 | Nohmi Bosai Ltd | Sprinkler extinguishing equipment for house |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115098A (en) * | 1975-04-01 | 1976-10-09 | Rinden Geruto | Automatic fire alarm* method and device for extinguishing fire |
| JPS61213066A (en) * | 1985-03-16 | 1986-09-22 | 日本碍子株式会社 | Automatic fire extinguishing apparatus |
-
1987
- 1987-02-05 JP JP2506987A patent/JPS63192465A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115098A (en) * | 1975-04-01 | 1976-10-09 | Rinden Geruto | Automatic fire alarm* method and device for extinguishing fire |
| JPS61213066A (en) * | 1985-03-16 | 1986-09-22 | 日本碍子株式会社 | Automatic fire extinguishing apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810350A (en) * | 1995-04-10 | 1996-01-16 | Nohmi Bosai Ltd | Sprinkler extinguishing equipment for house |
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