JPH0441030B2 - - Google Patents
Info
- Publication number
- JPH0441030B2 JPH0441030B2 JP5316985A JP5316985A JPH0441030B2 JP H0441030 B2 JPH0441030 B2 JP H0441030B2 JP 5316985 A JP5316985 A JP 5316985A JP 5316985 A JP5316985 A JP 5316985A JP H0441030 B2 JPH0441030 B2 JP H0441030B2
- Authority
- JP
- Japan
- Prior art keywords
- fire
- extinguishing
- equipment
- water spray
- gas
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は特に屋内変電所、地下変電所のような
電力機器が設置された閉塞構造の大規模施設の消
火に適する電力機器の自動消火方法に関するもの
である。[Detailed Description of the Invention] (Industrial Application Field) The present invention is an automatic fire extinguishing method for power equipment particularly suitable for fire extinguishing in large-scale facilities with closed structures such as indoor substations and underground substations where power equipment is installed. It is related to.
（従来の技術）
近年都市部においては電力需要の増大及び敷地
難に伴ない、大容量の地下変電所が建設されてい
るが、このような地下変電所には大容量の油入機
器やケーブルのような電力機器が収納されている
ために火災の危険性が高く、しかも電力の安定供
給という公共的使命から万一火災が発生したとき
には迅速な消火と消火後における復旧作業への早
期着手が求められている。このため、地下変電所
等の消火装置としては後処理が容易で消火剤によ
る感電事故等のおそれのないガス消火設備が火災
感知器と組合わされて用いられているが、ガス消
火設備は一度ガスを放出すると万一消火できなか
つた場合に更に消火を継続することができないう
えに、火災に伴なう爆発事故等によつて建築物の
壁面等が破壊されて外気が侵入した場合には規定
量のガスを放出しても消火できないおそれがあ
り、更に冷却効果が少いので一度消火した後に再
着火の可能性がある等の多くの問題点があつた。
更に地下変電所等は無人に近い状態で運転されて
いるため、事故発生時には確実な自動消火及び消
火装置の自動停止ができることが強く求められて
いた。(Conventional technology) In recent years, large-capacity underground substations have been constructed in urban areas due to the increasing demand for electricity and the shortage of available sites. There is a high risk of fire due to the fact that power equipment such as It has been demanded. For this reason, gas fire extinguishing equipment is used in combination with fire detectors as a fire extinguishing system for underground substations, etc., as it is easy to post-process and there is no risk of electric shock accidents caused by the extinguishing agent. In the event that the fire cannot be extinguished, it will not be possible to continue extinguishing the fire, and if the walls of the building are destroyed due to an explosion caused by the fire, etc., and outside air enters, the stipulated regulations will be applied. There were many problems, such as the possibility that the fire could not be extinguished even if a large amount of gas was released, and furthermore, the cooling effect was small, so there was a possibility that the fire would re-ignite once the fire was extinguished.
Furthermore, since underground substations and the like are operated almost unmanned, there is a strong demand for reliable automatic fire extinguishing and automatic shut down of fire extinguishing equipment in the event of an accident.
（発明が解決しようとする問題点）
本発明は上記のような従来の問題点を解決し、
火災発生時には迅速かつ確実な自動消火を行うこ
とができるとともに、消火後には消火装置の自動
停止を行わせ、迅速に復旧作業に着手できるよう
にして電力の安定供給に寄与することができる電
力機器の消火方法を提供するために完成されたも
のである。(Problems to be solved by the invention) The present invention solves the conventional problems as described above,
Power equipment that can quickly and reliably automatically extinguish a fire in the event of a fire, as well as automatically shutting down the fire extinguisher after the fire has been extinguished, allowing recovery work to begin quickly and contributing to a stable supply of electricity. It was developed to provide a method for extinguishing fires.
（問題点を解決するための手段）
上記の課題を解決するためになされた本発明
は、電力機器が設置されている一つの警戒区域に
対して、ガス消火設備と、水噴霧消火設備と、火
災検出器により発火消火を判断する発火・消火検
出回路とを設けておき、この発火・消火検出回路
により火災が検出されたときガス消火制御回路に
より一定時間ガス消火設備を作動させ、その後も
なお火災が検出されるとき水噴霧消火制御回路に
より水噴霧消火設備を作用させるとともに、火災
が検出されなくなつた後もなおタイマにより測定
された燃焼時間に基づいて決定される冷却時間に
わたり水噴霧消火設備の作動を継続させたうえそ
の作動を自動停止させることを特徴とするもので
ある。(Means for Solving the Problems) The present invention, which was made to solve the above problems, provides gas fire extinguishing equipment, water spray fire extinguishing equipment, An ignition/extinguishing detection circuit is installed that uses a fire detector to determine whether or not a fire has been extinguished.When a fire is detected by this ignition/extinguishing detection circuit, the gas extinguishing control circuit operates the gas extinguishing equipment for a certain period of time. The water spray extinguishing control circuit activates the water spray extinguishing equipment when a fire is detected and continues to operate the water spray extinguishing system for a cooling time determined based on the burn time measured by the timer even after the fire is no longer detected. This system is characterized by allowing the equipment to continue operating and then automatically stopping the operation.
以下に本発明の具体例を図面に基いて詳細に説
明する。 Specific examples of the present invention will be explained in detail below based on the drawings.
第１図において、１は電力機器が設置された地
下変電所等の一つの警戒区域であり、該警戒区域
１に対してガス消火設備２と水噴霧消火設備３と
火災検出器４により発火消火を判断する発火・消
火検出回路１１とが設けられている。ガス消火設
備２は消火薬剤貯蔵ボンベ５と、制御弁６と、警
戒区域１の天井面に配設された複数のガス消火用
ノズル７とからなり、水噴霧消火設備３は消火用
ポンプ８と、制御弁９と、警戒区域１の天井面に
配設された多数の水噴霧用ノズル１０とからなる
ものである。 In Fig. 1, reference numeral 1 indicates a warning area such as an underground substation where power equipment is installed, and the warning area 1 is ignited and extinguished by gas extinguishing equipment 2, water spray extinguishing equipment 3, and fire detector 4. An ignition/extinguishing detection circuit 11 is provided for determining the ignition/extinguishment. The gas fire extinguishing equipment 2 consists of a fire extinguishing agent storage cylinder 5, a control valve 6, and a plurality of gas fire extinguishing nozzles 7 arranged on the ceiling of the warning area 1, and the water spray fire extinguishing equipment 3 comprises a fire extinguishing pump 8. , a control valve 9, and a large number of water spray nozzles 10 arranged on the ceiling surface of the warning area 1.
発火・消火検出回路１１は火災検出器４により
火災からの輻射熱を捉えて発火及び消火を検出す
るものであり、火災検出器４はLNG基地や石油
コンビナート等において用いられている赤外線式
のものに耐熱性を持たせたうえ、警戒区域１内に
検出の死角ができないように複数個を配設するも
のとする。 The ignition/extinguishing detection circuit 11 detects ignition and extinguishing by capturing radiant heat from a fire using a fire detector 4. The fire detector 4 is an infrared type used in LNG terminals, oil complexes, etc. In addition to being heat resistant, a plurality of detectors shall be installed in the caution area 1 so that no blind spots are created for detection.
なお本発明で使用される火災検出器４は火災発
生時においてガス放出完了後にもなお正常に作動
するものであることが必要であるが、例えば火災
検出器４としてアルミニウム鋳物の内部にセンサ
用IC（正常作動温度80℃）を収納し、サフアイア
ガラスの窓から赤外線を感知する形式のものを使
用した場合には、火災発生から120秒経過後に室
内温度が650℃に達したときにも火災検出器４の
内部温度は57℃であり、180秒経過後に室内温度
が730℃に達したときにも火災検出器４の内部温
度は70℃であることが実験により確認されてい
る。このように火災発生後少なくとも180秒は正
常に作動する火災検出器４は従来から市販されて
いるので、そのような耐熱性のものを選択して使
用すればよい。また本発明ではガス放出完了後に
も更に火災が継続している場合には注水が開始さ
れるので火災検出器４も水により冷却され、その
機能が維持されることとなる。 It should be noted that the fire detector 4 used in the present invention needs to operate normally even after gas release is completed in the event of a fire; for example, it is necessary to install a sensor IC inside the aluminum casting as the fire detector 4. (normal operating temperature 80℃) and uses a type that detects infrared rays through a sapphire glass window, a fire can occur even if the indoor temperature reaches 650℃ 120 seconds after the fire outbreak. The internal temperature of the fire detector 4 is 57°C, and it has been experimentally confirmed that even when the indoor temperature reaches 730°C after 180 seconds, the internal temperature of the fire detector 4 remains 70°C. Fire detectors 4 that operate normally for at least 180 seconds after a fire breaks out have been commercially available, so a heat-resistant one may be selected and used. Further, in the present invention, if the fire continues even after the gas release is completed, water injection is started, so the fire detector 4 is also cooled by water and its function is maintained.
１２はこの発火・消火検出回路１１及びガス消
火設備２の制御弁６に接続されたガス消火制御回
路、１３は発火・消火検出回路１１及び水噴霧消
火設備３の制御弁９に接続された水噴霧消火制御
回路であるが、これらの作動については後述す
る。なお、１４，１５，１６，１７はタイマー
T1〜T4、１８は警報回路、１９はスピーカー、
サイレン等の警報器である。 12 is a gas extinguishing control circuit connected to this ignition/extinguishing detection circuit 11 and the control valve 6 of the gas extinguishing equipment 2; 13 is a water supply connected to the ignition/extinguishing detection circuit 11 and the control valve 9 of the water spray extinguishing equipment 3; The operation of the spray extinguishing control circuit will be described later. Note that 14, 15, 16, and 17 are timers.
T1 to T4 , 18 is an alarm circuit, 19 is a speaker,
It is an alarm device such as a siren.
（作用）
次に第２図に従つて本発明の自動消火方法につ
いて説明する。(Function) Next, the automatic fire extinguishing method of the present invention will be explained with reference to FIG.
まず火災発生と同時にいずれかの火災検出器４
が火災を検出し、発火・消火検出回路１１へ信号
を送る。これと同時に発火・消火検出回路１１は
燃焼時間測定用のタイマーT1１４を作動させる
とともに、当該警戒区域１内に警報器１９により
警報と退去放送を行う。ガス消火設備２は消防法
の規制により、警報後に作業員が避難するための
20秒以上の遅延時間を設けることが必要とされて
いるので、タイマーT2１５でこの遅延時間を設
けたのちガス消火制御回路１２がガス消火設備２
の制御弁６を開いてガス消火用ノズル７からガス
放出を開始する。ガス放出は規定量放出し終る時
間が設計段階で決定されており、タイマーT3１
６により設定された放出完了時間、例えば30秒前
後継続され、その後発火・消火検出回路１１が作
動して消火したか否かを検出する。すべての火災
検出器４が消火を確認すればその段階で自動消火
装置は作動を停止し、この場合には消火剤として
ガスが使用されたのみであるから電気機器等への
影響や消火剤により感電事故のおそれがなく、迅
速な復旧が可能である。 First, as soon as a fire occurs, one of the fire detectors 4
detects a fire and sends a signal to the ignition/extinguishing detection circuit 11. At the same time, the ignition/extinguishing detection circuit 11 activates the timer T 1 14 for measuring the combustion time, and issues an alarm and an evacuation announcement using the alarm 19 within the warning area 1 . Gas fire extinguishing equipment 2 is designed to help workers evacuate after an alarm, according to Fire Service Law regulations.
Since it is necessary to provide a delay time of 20 seconds or more, after providing this delay time with the timer T 2 15, the gas fire extinguishing control circuit 12 starts the gas fire extinguishing equipment 2.
The control valve 6 is opened to start discharging gas from the gas extinguishing nozzle 7. The time at which a specified amount of gas is released is determined at the design stage, and the timer T 3 1
6 continues for approximately 30 seconds, for example, after which the ignition/extinguishing detection circuit 11 operates to detect whether or not the fire has been extinguished. If all the fire detectors 4 confirm that the fire has been extinguished, the automatic fire extinguishing system will stop operating at that stage.In this case, since only gas was used as the extinguishing agent, it may affect electrical equipment etc. There is no risk of electric shock, and quick recovery is possible.
一方、ガス放出終了後にもいずれかの火災検出
器４がなお火災を検出したときには、発火・消火
検出回路１１から水噴霧消火制御回路１３へ信号
が送られ、水噴霧用ノズル１０から水が放出され
る。水噴霧を行いながら火災検出器４による火災
検出は継続され、すべての火災検出器４が消火を
確認したときにタイマーT4１７を起動させ、前
記したタイマーT1１４により計測された火災継
続時間に基づいて決定される冷却時間にわたり水
噴霧を継続する。この水噴霧は再着火を防止する
ための冷却用のものであり、燃焼時間と等しい冷
却時間にわたり水噴霧を継続すれば油入機器等の
温度も再着火温度よりも十分に低くなり、再着火
を確実に防止することができる。その後、水噴霧
消火制御回路１３が制御弁９を自動的に閉じ、す
べての作動を終了する。 On the other hand, if any of the fire detectors 4 still detects a fire even after the gas release is finished, a signal is sent from the ignition/extinguishing detection circuit 11 to the water spray extinguishing control circuit 13, and water is discharged from the water spray nozzle 10. be done. The fire detection by the fire detectors 4 continues while spraying water, and when all the fire detectors 4 confirm that the fire has been extinguished, the timer T 4 17 is started, and the fire duration time measured by the above-mentioned timer T 1 14 is started. Continue water spraying for a cooling time determined based on This water spray is for cooling to prevent re-ignition, and if the water spray is continued for a cooling time equal to the combustion time, the temperature of the oil-filled equipment will be sufficiently lower than the re-ignition temperature, and re-ignition will occur. can be reliably prevented. Thereafter, the water spray extinguishing control circuit 13 automatically closes the control valve 9, ending all operations.
（発明の効果）
本発明は以上の説明からも明らかなように、消
火効果の異なる２種類の消火設備と発火・消火検
出回路とを用い、先ず電気機器等への影響や感電
事故のおそれのないガス消火によつて自動消火を
行い、消火後の迅速な復旧ができるようにすると
ともに、ガス消火では消火できなかつた場合には
消火性能及び冷却効果の点で優れた水噴霧による
消火を行い、完全な消火を行うようにしたもので
ある。(Effects of the Invention) As is clear from the above description, the present invention uses two types of fire extinguishing equipment with different fire extinguishing effects and a fire/extinguishing detection circuit, and firstly prevents the impact on electrical equipment etc. and the risk of electric shock accidents. The system automatically extinguishes the fire with gas, allowing for quick recovery after the fire has been extinguished, and if the fire cannot be extinguished with gas, it can be extinguished with water spray, which has excellent fire extinguishing performance and cooling effect. , to completely extinguish the fire.
冒頭に述べたように、電力機器の消火はほとん
ど無人の状況下において自動的に行う必要があ
り、かつ電力の安定供給が義務付けられているこ
とから迅速な復旧が強く求められる。本発明の消
火方法によれば、ガス消火では消火きなかつた場
合には自動的に直ちに第２段階の消火に移行し、
消火時間の短縮、再着火の防止を図るとともに、
十分な冷却を行つた後は消火装置を自動停止して
直ちに復旧作業に着手することができるようにし
たので、電力機器の火災の持つ特殊性に対応した
自動消火を行うことができる。 As mentioned at the beginning, fire extinguishing of power equipment needs to be carried out automatically under almost unattended conditions, and since a stable supply of electricity is required, prompt restoration is strongly required. According to the fire extinguishing method of the present invention, if the fire cannot be extinguished by gas extinguishing, the second stage of extinguishing is automatically performed,
In addition to shortening the extinguishing time and preventing re-ignition,
After sufficient cooling, the fire extinguishing system is automatically stopped and restoration work can begin immediately, making it possible to automatically extinguish fires in response to the special characteristics of power equipment fires.
よつて本発明は従来の問題点を解消した電力機
器の消火方法のとして、産業の発展に寄与すると
ころは極めて大である。 Therefore, the present invention greatly contributes to the development of industry as a fire extinguishing method for power equipment that solves the problems of the conventional methods.
第１図は本発明に使用される自動消火設備のブ
ロツク図、第２図はそのフローシートである。
１……警戒区域、２……ガス消火設備、３……
水噴霧消火設備、１２……ガス消火制御回路、１
３……水噴霧消火制御回路、１５……タイマー
T2。
FIG. 1 is a block diagram of the automatic fire extinguishing equipment used in the present invention, and FIG. 2 is its flow sheet. 1... Caution area, 2... Gas fire extinguishing equipment, 3...
Water spray fire extinguishing equipment, 12...Gas fire extinguishing control circuit, 1
3... Water spray fire extinguishing control circuit, 15... Timer
T2 .
Claims (1)
に対して、ガス消火設備２と、水噴霧消火設備３
と、火災検出器４により発火消火を判断する発
火・消火検出回路１１とを設けておき、この発
火・消火検出回路１１により火災が検出されたと
きガス消火制御回路１２により一定時間ガス消火
設備２を作動させ、その後もなお火災が検出され
るとき水噴霧消火制御回路１３により水噴霧消火
設備３を作用させるとともに、火災が検出されな
くなつた後もなおタイマにより測定された燃焼時
間に基づいて決定される冷却時間にわたり水噴霧
消火設備３の作動を継続させたうえその作動を自
動停止させることを特徴とする電力機器の自動消
火方法。1 One restricted area where electrical equipment is installed 1
In contrast, gas fire extinguishing equipment 2 and water spray fire extinguishing equipment 3
and an ignition/extinguishing detection circuit 11 for determining ignition/extinguishing by the fire detector 4. When a fire is detected by the ignition/extinguishing detection circuit 11, the gas extinguishing control circuit 12 activates the gas extinguishing equipment 2 for a certain period of time. is activated, and when a fire is still detected after that, the water spray extinguishing control circuit 13 activates the water spray extinguishing equipment 3, and even after the fire is no longer detected, the water spray extinguishing equipment 3 is activated based on the combustion time measured by the timer. An automatic fire extinguishing method for power equipment, characterized by continuing the operation of the water spray fire extinguishing equipment 3 for a determined cooling time and then automatically stopping the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316985A JPS61213066A (en) | 1985-03-16 | 1985-03-16 | Automatic fire extinguishing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316985A JPS61213066A (en) | 1985-03-16 | 1985-03-16 | Automatic fire extinguishing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61213066A JPS61213066A (en) | 1986-09-22 |
| JPH0441030B2 true JPH0441030B2 (en) | 1992-07-07 |
Family
ID=12935354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5316985A Granted JPS61213066A (en) | 1985-03-16 | 1985-03-16 | Automatic fire extinguishing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61213066A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63122451U (en) * | 1987-02-03 | 1988-08-09 | ||
| JPS63192465A (en) * | 1987-02-05 | 1988-08-09 | 西村 悦宜 | Automatic fire extinguishing apparatus |
| JP3440153B2 (en) * | 1994-12-19 | 2003-08-25 | ホーチキ株式会社 | Fire extinguisher |
| CN112473047B (en) * | 2020-06-19 | 2022-03-22 | 国网安徽省电力有限公司电力科学研究院 | Fire extinguishing system and fire extinguishing method suitable for extra-high voltage converter station and extra-high voltage converter station |
-
1985
- 1985-03-16 JP JP5316985A patent/JPS61213066A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61213066A (en) | 1986-09-22 |
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