JP2004154225A - Disaster prevention equipment of solvent supplier - Google Patents

Disaster prevention equipment of solvent supplier Download PDF

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Publication number
JP2004154225A
JP2004154225A JP2002320971A JP2002320971A JP2004154225A JP 2004154225 A JP2004154225 A JP 2004154225A JP 2002320971 A JP2002320971 A JP 2002320971A JP 2002320971 A JP2002320971 A JP 2002320971A JP 2004154225 A JP2004154225 A JP 2004154225A
Authority
JP
Japan
Prior art keywords
solvent
surrounding wall
fire
disaster prevention
protective enclosure
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
Application number
JP2002320971A
Other languages
Japanese (ja)
Inventor
Manabu Okada
学 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hatsuta Seisakusho Co Ltd
Original Assignee
Hatsuta Seisakusho Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hatsuta Seisakusho Co Ltd filed Critical Hatsuta Seisakusho Co Ltd
Priority to JP2002320971A priority Critical patent/JP2004154225A/en
Publication of JP2004154225A publication Critical patent/JP2004154225A/en
Pending legal-status Critical Current

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  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide disaster prevention equipment of a solvent supplier having effective disaster prevention equipment capable of preventing a fire from occurring by a dangerous solvent inside a protective surrounding wall and performing initial fire extinguishing by using an inert gas even when a fire occurs inside the protective surrounding wall thereafter. <P>SOLUTION: A porous solvent absorbent 8 is spread on a floor surface inside the protective surrounding wall 6 in the solvent supplier for supplying a spontaneous-ignitable solvent which is liquid at a normal temperature from a solvent storage tank 1 inside the protective surrounding wall 6 to a semiconductor manufacturing facility 2, the leakage of the solvent is detected inside the protective surrounding wall 6 and the supply path of the solvent is shut off. Thus, the leaking solvent is absorbed by the solvent absorbent 8, ignition is suppressed, and the initial fire extinguishing is made possible by using the inert gas, inside the protective surrounding wall 6 when needed thereafter. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、常温で液体の自然発火性溶剤,中でも塩化シランを半導体製造装置等に供給するための溶剤供給装置の防災設備に関するものである。
【0002】
【従来の技術】
従来のこの種の溶剤供給装置の防災設備を図2について説明する。図2は設備全体を示す概略図である。
【0003】
図2において、1は塩化シランを貯蔵する溶剤貯蔵タンク、2は半導体製造装置、3は溶剤貯蔵タンク1と半導体製造装置2とを結ぶ配管、4は配管3に設けたポンプ、5は配管3に配設した電磁バルブ、6は溶剤貯蔵タンク1,配管3,ポンプ4,電磁バルブ5などを囲む防護囲壁で、これにより危険な塩化シランの貯蔵部分を隔離して安全な溶剤供給装置を構成している。さらに、7は消火剤を放射する消火設備で、火災感知センサー7a,消火剤貯蔵タンク7b,放出ヘッド7c,制御盤7dなどからなっている。
【0004】
【発明が解決しようとする課題】
従来、この種の溶剤供給装置の防災設備としては、前記したように消火設備7が付いているのであるが、このように消火設備7が付いていても塩化シランを原因とする防護囲壁6内の火災に対しては、かかる消火設備7の放出ヘッド7cから放射する効果的な消火剤がないので、実際には消火設備7で消火できずに防護囲壁6内での電磁バルブ5の操作等により塩化シランの漏洩を遮断して火が完全に消えるまであの手この手で溶剤貯蔵タンク1を守りながら待つというのが現状で、未だに有効な消火方法,即ち有効な防災設備が存在していない。
【0005】
【課題を解決するための手段】
この発明に係る溶剤供給装置の防災設備はかかる点に鑑みてなされたもので、防護囲壁内に敷設した溶剤吸収体により漏れた溶剤を吸収して発火を抑制することにより、防護囲壁内での危険な溶剤による火災が未然に防止できると共に例えその後防護囲壁内で火災になっても不活性ガスによる初期消火ができる,即ち有効な防災設備が得られる。
【0006】
【発明の実施の形態】
この発明の一実施の形態を図1について説明する。図1は設備全体を示す概略図で、図中前記した従来のものと同一または相当部分には同一符号を付して説明を省略する。図1において、8は防護囲壁6内の床面に敷設した多孔質の溶剤吸収体、9はガス漏れ検知器、10は防火ダンパーである。
【0007】
今、防護囲壁6内で塩化シランが漏れて,それより生じるガス雰囲気をガス漏れ検知器9が検知すると、ガス漏れ検知器9から制御盤7dにガス漏れ信号を送る。制御盤7dではガス漏れ(塩化シランの漏れ)を確認すると、各電磁バルブ5を閉じて配管3を遮断して塩化シランの漏れを止めると共に防火ダンパー10を閉じる。漏れた塩化シランは液体であるので床面の溶剤吸収体8上に広がりそのまま溶剤吸収体8に吸収される。
【0008】
こうして漏れた全ての塩化シランが溶剤吸収体8に吸収されることにより、塩化シランの空気に接する時間,そして最終的には吸収状態での空気に接する面が少なくなって、自然発火しないので、火災を未然に防止できる。その際、このように防火ダンパー10を閉じることにより、防護囲壁6内の空気が遮断されて塩化シランの自然発火をより効果的に押さえることができる。
【0009】
このように防護囲壁6内に漏れた塩化シランは床面の溶剤吸収体8により吸収されて発火が抑制されるので、防護囲壁6内での漏洩塩化シランによる火災の危険性がなくなると共に配管3からの新たな塩化シランの漏洩の心配もない。よって、その後において、防護囲壁6内で火災になることがあっても、漏れた塩化シランを溶剤吸収体8により吸収しているので、消火装置7により不活性ガスなどを放出して十分に対応できる。
【0010】
【発明の効果】
以上のように、この発明によれば防護囲壁内に敷設した溶剤吸収体により漏れた溶剤を吸収して発火を抑制することができるので、防護囲壁内での危険な溶剤による火災が未然に防止できると共に例えその後防護囲壁内で火災になっても不活性ガスによる初期消火ができる,即ち有効な防災設備が得られるという効果を奏する。
【図面の簡単な説明】
【図1】この発明の一実施の形態を示す設備全体の概略図である。
【図2】従来の設備全体を示す概略図である。
【符号の説明】
1 物質貯蔵タンク
2 半導体製造装置
3 配管
4 ポンプ
5 電磁バルブ
6 防護囲壁
7 消火設備
7a 火災感知センサー
7b 消火剤貯蔵タンク
7c 放出ヘッド
7d 制御盤
8 溶剤吸収体
9 ガス漏れ検知器
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention equipment for a solvent supply device for supplying a pyrophoric solvent which is liquid at normal temperature, especially silane chloride, to a semiconductor manufacturing device or the like.
[0002]
[Prior art]
FIG. 2 shows a conventional disaster prevention facility of this type of solvent supply apparatus. FIG. 2 is a schematic diagram showing the entire equipment.
[0003]
In FIG. 2, 1 is a solvent storage tank for storing silane chloride, 2 is a semiconductor manufacturing apparatus, 3 is a pipe connecting the solvent storage tank 1 and the semiconductor manufacturing apparatus 2, 4 is a pump provided on the pipe 3, and 5 is a pipe 3 Is a protective enclosure surrounding the solvent storage tank 1, piping 3, pump 4, electromagnetic valve 5 and the like, thereby isolating the dangerous silane chloride storage portion to constitute a safe solvent supply device. are doing. Reference numeral 7 denotes a fire extinguishing system that emits a fire extinguishing agent, and includes a fire detecting sensor 7a, a fire extinguishing agent storage tank 7b, a discharge head 7c, a control panel 7d, and the like.
[0004]
[Problems to be solved by the invention]
Conventionally, as described above, fire-extinguishing equipment 7 is provided as a disaster-prevention equipment for this type of solvent supply apparatus. However, even if the fire-extinguishing equipment 7 is provided, the protective enclosure 6 caused by silane chloride may be used. As there is no effective extinguishing agent radiated from the discharge head 7c of the fire extinguishing equipment 7 for such a fire, the fire extinguishing equipment 7 cannot actually extinguish the fire, and the operation of the electromagnetic valve 5 in the protective enclosure 6 etc. At present, there is no effective fire-extinguishing method, that is, no effective fire-prevention equipment, while protecting the solvent storage tank 1 by hand until the fire is completely extinguished by shutting off the leakage of the silane chloride.
[0005]
[Means for Solving the Problems]
The disaster prevention equipment of the solvent supply device according to the present invention has been made in view of such a point, and absorbs the solvent leaked by the solvent absorber laid in the protective enclosure to suppress ignition, thereby preventing the fire in the protective enclosure. A fire caused by a dangerous solvent can be prevented beforehand, and even if a fire subsequently occurs in the protective enclosure, initial fire extinguishing with an inert gas can be performed, that is, effective disaster prevention equipment can be obtained.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic diagram showing the entire equipment. In the figure, the same or corresponding parts as those of the above-mentioned conventional one are denoted by the same reference numerals, and description thereof is omitted. In FIG. 1, reference numeral 8 denotes a porous solvent absorber laid on the floor inside the protective enclosure 6, 9 denotes a gas leak detector, and 10 denotes a fire damper.
[0007]
Now, when the silane chloride leaks in the protective enclosure 6 and the gas leak detector 9 detects the resulting gas atmosphere, a gas leak signal is sent from the gas leak detector 9 to the control panel 7d. When a gas leak (leakage of silane chloride) is confirmed in the control panel 7d, each electromagnetic valve 5 is closed to shut off the pipe 3 to stop the leak of silane chloride and close the fire damper 10. Since the leaked silane chloride is a liquid, it spreads on the solvent absorber 8 on the floor and is absorbed by the solvent absorber 8 as it is.
[0008]
Since all of the leaked silane chloride is absorbed by the solvent absorber 8, the time required for the silane chloride to come into contact with the air, and finally the surface of the silane chloride which comes into contact with the air in the absorbed state, are reduced, and spontaneous ignition does not occur. Fire can be prevented. At this time, by closing the fire protection damper 10 in this manner, the air in the protection enclosure 6 is shut off, and the spontaneous ignition of silane chloride can be suppressed more effectively.
[0009]
Since the silane chloride leaked into the protective enclosure 6 is absorbed by the solvent absorber 8 on the floor surface to suppress ignition, the risk of fire due to the leaked silane chloride in the protective enclosure 6 is eliminated and the piping 3 There is no risk of leakage of new silane chloride from the tank. Therefore, even if a fire may occur in the protective enclosure 6 later, since the leaked silane chloride is absorbed by the solvent absorber 8, the fire extinguisher 7 emits an inert gas or the like to sufficiently cope with the fire. it can.
[0010]
【The invention's effect】
As described above, according to the present invention, it is possible to absorb the solvent leaked by the solvent absorber laid in the protective enclosure and suppress ignition, thereby preventing fire due to the dangerous solvent in the protective enclosure. In addition to this, even if a fire occurs in the protective enclosure afterwards, the initial fire extinguishing by the inert gas can be performed, that is, an effective disaster prevention facility can be obtained.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of an entire facility showing an embodiment of the present invention.
FIG. 2 is a schematic diagram showing the entire conventional equipment.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 substance storage tank 2 semiconductor manufacturing equipment 3 pipe 4 pump 5 solenoid valve 6 protective enclosure 7 fire extinguishing equipment 7 a fire detection sensor 7 b fire extinguishing agent storage tank 7 c discharge head 7 d control panel 8 solvent absorber 9 gas leak detector

Claims (1)

防護囲壁内の溶剤貯蔵タンクから常温で液体の自然発火性溶剤を半導体製造装置等に供給するための溶剤供給装置における前記防護囲壁内の床面に多孔質の溶剤吸収体を敷設し、かつこの防護囲壁内で前記溶剤の漏れを検出して前記溶剤の供給路を遮断しておくと、漏れた溶剤が前記溶剤吸収体に吸収されて発火が抑制され、その後要すれば前記防護囲壁内において不活性ガスによる初期消火を可能とするようにしたことを特徴とする溶剤供給装置の防災設備。A porous solvent absorber is laid on a floor surface in the protective enclosure in a solvent supply device for supplying a liquid pyrophoric solvent at room temperature to a semiconductor manufacturing device or the like from a solvent storage tank in the protective enclosure. When the leakage of the solvent is detected in the protective enclosure and the supply path of the solvent is shut off, the leaked solvent is absorbed by the solvent absorber to suppress ignition, and thereafter, if necessary, in the protective enclosure. Disaster prevention equipment for a solvent supply device, characterized in that initial fire extinguishing by an inert gas is enabled.
JP2002320971A 2002-11-05 2002-11-05 Disaster prevention equipment of solvent supplier Pending JP2004154225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002320971A JP2004154225A (en) 2002-11-05 2002-11-05 Disaster prevention equipment of solvent supplier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002320971A JP2004154225A (en) 2002-11-05 2002-11-05 Disaster prevention equipment of solvent supplier

Publications (1)

Publication Number Publication Date
JP2004154225A true JP2004154225A (en) 2004-06-03

Family

ID=32801657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002320971A Pending JP2004154225A (en) 2002-11-05 2002-11-05 Disaster prevention equipment of solvent supplier

Country Status (1)

Country Link
JP (1) JP2004154225A (en)

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