JPH0226714B2 - - Google Patents
Info
- Publication number
- JPH0226714B2 JPH0226714B2 JP910584A JP910584A JPH0226714B2 JP H0226714 B2 JPH0226714 B2 JP H0226714B2 JP 910584 A JP910584 A JP 910584A JP 910584 A JP910584 A JP 910584A JP H0226714 B2 JPH0226714 B2 JP H0226714B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- valves
- pressure side
- valve
- nitrogen 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 38
- 239000001301 oxygen Substances 0.000 claims description 38
- 229910052760 oxygen Inorganic materials 0.000 claims description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 19
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 230000005856 abnormality Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 7
- 229910001882 dioxygen Inorganic materials 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は酸素圧縮機や該酸素圧縮機に酸素ガス
を供給する配管及び圧縮された酸素ガスをプロセ
スへ導く配管等系内の酸素ガスの温度が異常に高
くなつたとき、系内の酸素ガスを窒素ガスと置換
して火災の発生を防止したり消火を行う方法に関
するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to oxygen compressors, piping for supplying oxygen gas to the oxygen compressor, piping for guiding compressed oxygen gas to processes, etc. This relates to a method for preventing or extinguishing a fire by replacing oxygen gas in the system with nitrogen gas when the temperature becomes abnormally high.
酸素圧縮機系は、第１図に一例を示す如く、酸
素供給源から供給される酸素を配管３を介して低
圧側酸素圧縮機１へ導くようにすると共に、上記
酸素圧縮機１で圧縮された酸素を更に高圧側酸素
圧縮機２へ配管４を介して導き、高圧側酸素圧縮
機２で圧縮された酸素を配管５にてプロセスへ導
くようにしてあり、酸素を所要の圧力に圧縮して
使用できるようにしてある。
As shown in an example in FIG. 1, the oxygen compressor system guides oxygen supplied from an oxygen supply source to a low-pressure side oxygen compressor 1 via a pipe 3, and compresses oxygen in the oxygen compressor 1. The oxygen is further led to the high-pressure side oxygen compressor 2 via piping 4, and the oxygen compressed by the high-pressure side oxygen compressor 2 is led to the process through piping 5, compressing the oxygen to the required pressure. It is ready for use.
上記酸素圧縮機１，２や配管４，５内の温度の
異常上昇や既に発生していることがある火災を検
出するための温度エレメント６、温度検出器７を
それぞれ設けると共に、配管４及び５の途中に、
バルブV1及びV2を設け且つ大気へ通じる配管８，
９を接触してこれら配管８，９途中にバルブV3，
V4を設け、又、主としてサージング防止用のた
め配管４及び５から配管３へ高圧の酸素が導ける
よう配管１０，１１を配して、これらの配管途中
にもバルブV5，V6を設け、更に配管３と４へ窒
素を導入するための配管１２を設けてバルブV7
を設けた構成としてあり、酸素圧縮器１，２や配
管４，５内の異常が温度検出器７で検出される
と、酸素圧縮機１，２の駆動装置を停止させると
同時に、バルブV1，V2を閉、バルブV3，V4，
V5，V6，V7を開に操作できるようにしてある。 A temperature element 6 and a temperature detector 7 are provided to detect an abnormal rise in temperature in the oxygen compressors 1 and 2 and the pipes 4 and 5, as well as a fire that may have already occurred. In the middle of
Piping 8 equipped with valves V 1 and V 2 and communicating with the atmosphere,
9 is in contact with the valve V 3 in the middle of these pipes 8 and 9,
In addition, pipes 10 and 11 are arranged to lead high pressure oxygen from pipes 4 and 5 to pipe 3 mainly for surging prevention, and valves V 5 and V 6 are also provided in the middle of these pipes. In addition, a pipe 12 is provided to introduce nitrogen into pipes 3 and 4, and a valve V 7 is installed.
When an abnormality in the oxygen compressors 1, 2 or the pipes 4, 5 is detected by the temperature detector 7, the drive devices for the oxygen compressors 1, 2 are stopped, and at the same time, the valve V 1 is , V 2 closed, valves V 3 , V 4 ,
V 5 , V 6 , and V 7 can be operated openly.
１３はクーラ、１４はフイルターである。 13 is a cooler, and 14 is a filter.
系内で異常が検出されるまでの通常運転時に
は、バルブV1，V2を開、他のバルブV3，V4，
V5，V6，V7すべて閉にし、酸素が酸素圧縮機
１，２で順次圧縮されてプロセスへ導かれる。 During normal operation until an abnormality is detected in the system, valves V 1 and V 2 are opened and other valves V 3 , V 4 ,
V 5 , V 6 , and V 7 are all closed, and oxygen is sequentially compressed by oxygen compressors 1 and 2 and introduced into the process.
温度検出器７が系内の異常発生を検出すると、
自動的に酸素圧縮機１，２の運転を停止すると同
時にバルブV1，V2を閉、バルブV3，V4，V5，
V6，V7をすべて開にし、系内の酸素を大気へ放
出させて系内の圧力を下げるとと共に窒素ガスを
系内に導入させ、系内を窒素ガスに置換させるこ
とにより消火するようにしている。 When the temperature detector 7 detects an abnormality in the system,
Automatically stops the operation of oxygen compressors 1 and 2, and at the same time closes valves V 1 and V 2 , and closes valves V 3 , V 4 , V 5 ,
Open all V 6 and V 7 to release the oxygen in the system to the atmosphere, lowering the pressure in the system, and introduce nitrogen gas into the system to replace the system with nitrogen gas to extinguish the fire. I have to.
しかし、上記従来の方法では、火災（異常）検
出時にバルブV1，V2を閉じ、バルブV3，V4，
V5，V6，V7を開いた後は、オペレータがリセツ
トするまでそのままの状態に保持されていること
と、酸素圧縮機への酸素吸入系統は、吐出系統に
比較し配管口径が大きいため、窒素ガスが配管口
径の小さい高圧側へは入りにくく、バルブV3の
方へのみ窒素ガスが流れる可能性が大であるとい
う現象があることから、従来の方法では上記のよ
うにバルブV3，V4，V5，V6，V7はオペレータが
操作するまでは開いたままになつていて、系内の
酸素ガスをすべて放出して窒素ガスと置換させる
効果が悪く、高圧側では置換に多くの時間を要し
ていた。 However, in the above conventional method, when a fire (abnormality) is detected, valves V 1 and V 2 are closed, and valves V 3 , V 4 ,
After V 5 , V 6 , and V 7 are opened, they remain in that state until reset by the operator, and the oxygen intake system to the oxygen compressor has a larger diameter piping than the discharge system. , it is difficult for nitrogen gas to enter the high pressure side of the small pipe diameter, and there is a high possibility that nitrogen gas will flow only towards valve V 3. Therefore, in the conventional method, as described above, valve V 3 , V 4 , V 5 , V 6 , and V 7 remain open until operated by the operator, which is ineffective in releasing all the oxygen gas in the system and replacing it with nitrogen gas, and the replacement on the high pressure side is poor. It took a lot of time.
本発明は、上記従来方法による場合の問題を解
決するため、高圧側へ積極的に窒素ガスを流せる
ようにすることを目的とする。
The present invention aims to make it possible to actively flow nitrogen gas to the high pressure side in order to solve the problems caused by the conventional method described above.
本発明の方法は、上記目的を達成するために火
災検出時から一定時間経過後に低圧側のバルブを
閉じ、窒素ガスを積極的に高圧側に流すようにす
る。
In order to achieve the above object, the method of the present invention closes the valve on the low pressure side after a certain period of time has elapsed from the time of fire detection, and actively allows nitrogen gas to flow to the high pressure side.
詳述すると、第１図に示す構成において、各温
度検出器７とバルブV3，V5，V6との接続回路
に、タイマ及びタイマ接点を有し且つタイマが作
動して一定時間が経過すると温度検出器７から各
バルブへの信号を遮断するようにした回路を組み
込んだ構成とし、温度検出器７からの信号でバル
ブV1，V2が閉、バルブV3，V4，V5，V6，V7が
開になつて一定時間が経過すると自動的にバルブ
V3，V5，V6のみが閉に切り換えられるようにす
る。上記一定時間を定めるタイマの設定時間は、
従来からの実績及びシミユレーシヨン等により決
定する。 To be more specific, in the configuration shown in FIG. 1, the connection circuit between each temperature detector 7 and the valves V 3 , V 5 , V 6 has a timer and timer contacts, and when the timer operates and a certain period of time has elapsed, Then, the configuration incorporates a circuit that cuts off the signal from the temperature detector 7 to each valve, and the signal from the temperature detector 7 closes the valves V 1 and V 2 and closes the valves V 3 , V 4 , and V 5 . , V 6 , V 7 are opened and the valves are automatically closed after a certain period of time has passed.
Allow only V 3 , V 5 , and V 6 to be switched to closed. The setting time of the timer that determines the above fixed time is
Determined based on past results and simulations.
本発明の方法による場合は、第２図に示すシー
ケンス制御とする。すなわち、通常運転時は、従
来の場合と同様に、バルブV1，V2は開き、他の
すべてのバルブは閉になつて酸素ガスを圧縮機
１，２を経て確実にプロセスへ導くことができる
ようにしてある。 In the case of the method of the present invention, the sequence control shown in FIG. 2 is used. That is, during normal operation, valves V 1 and V 2 are opened and all other valves are closed, as in the conventional case, to ensure that oxygen gas is guided to the process via compressors 1 and 2. I have made it possible.
今、異常発生が検出器７で検出されると、該検
出器７からの信号により酸素圧縮器１，２の運転
が停止されると共に、バルブV1，V2は閉に、バ
ルブV3，V4，V5，V6，V7が開にされると同時
に、バルブV3，V5，V6の回路のタイマが作動す
る。これにより系内の酸素ガスはバルブV3，V4
を通つて大気へ放出されて系内の圧力が低下し、
次いで窒素ガスが系内へ導入される。 Now, when the occurrence of an abnormality is detected by the detector 7, the operation of the oxygen compressors 1 and 2 is stopped by the signal from the detector 7, the valves V 1 and V 2 are closed, and the valves V 3 and 2 are closed. At the same time that V 4 , V 5 , V 6 , and V 7 are opened, the timers in the circuits of valves V 3 , V 5 , and V 6 are activated. This allows the oxygen gas in the system to flow through the valves V 3 and V 4
is released into the atmosphere through the air, reducing the pressure within the system.
Nitrogen gas is then introduced into the system.
上記の状態はタイマの設定時間継続するが、火
災検出時t0からt1時間が経過すると、前記バルブ
V3，V5，V6のみが閉に切り換え制御され、バル
ブV4，V7のみが開状態のままに置かれる。これ
により窒素ガスはバルブV4のみから大気へ放出
されることになり、従来流れにくかつた高圧へ窒
素ガスを容易に流すことができ、系内を短時間に
窒素ガスと置換させることができる。 The above condition continues for the time set on the timer, but when the fire is detected and the time t 1 elapses from t 0 to t 1, the valve
Only valves V 3 , V 5 , and V 6 are switched closed and controlled, and only valves V 4 and V 7 are left open. As a result, nitrogen gas is released into the atmosphere only from valve V4 , making it possible to easily flow nitrogen gas to high pressures where it was previously difficult to flow, and replacing the inside of the system with nitrogen gas in a short time. can.
以上述べた如く本発明の方法によれば、酸素圧
縮機系で温度の異常上昇や火災が発生したとき
は、自動的に系内の酸素ガスを大気へ放出させた
後に窒素ガスを導入する工程で、異常発生から一
定時間経過後に高圧側の大気へ通じる弁のみ開と
して窒素ガスを高圧側へ積極的に流すようにする
ので、従来流れにくかつた高圧側への窒素ガスの
流れをよくすることができて系全体を短時間のう
ちに窒素ガスに置換することができ、消火を迅速
且つ確実に行い得られる。
As described above, according to the method of the present invention, when an abnormal temperature rise or a fire occurs in the oxygen compressor system, the process of automatically releasing oxygen gas in the system to the atmosphere and then introducing nitrogen gas After a certain period of time has elapsed since the occurrence of an abnormality, only the valve that communicates with the atmosphere on the high-pressure side is opened to actively flow nitrogen gas to the high-pressure side, which improves the flow of nitrogen gas to the high-pressure side, which was previously difficult to Therefore, the entire system can be replaced with nitrogen gas in a short time, and the fire can be extinguished quickly and reliably.
第１図は酸素圧縮機系統と消火システムを示す
概要図、第２図は本発明の方法によるバルブの切
換制御要領を示す図である。
１，２は酸素圧縮機、７は温度検出器、V1，
V2，V3，V4，V5，V6，V7はバルブを示す。
FIG. 1 is a schematic diagram showing an oxygen compressor system and fire extinguishing system, and FIG. 2 is a diagram showing a valve switching control procedure according to the method of the present invention. 1 and 2 are oxygen compressors, 7 is a temperature detector, V 1 ,
V 2 , V 3 , V 4 , V 5 , V 6 , and V 7 indicate valves.
Claims (1)
系統に、該系内の火災の如き温度の異常上昇を検
出する検出器を設け、該検出器が異常を検出する
と、上記酸素圧縮機と通じる酸素配管途中のバル
ブを閉じると同時に系内の酸素を大気へ放出させ
るための低圧側と高圧側のバルブと系内へ窒素ガ
スを導入する経路のバルブを開けて系内の酸素を
大気へ放出させ始めた後、一定時間が経過すると
自動的に低圧側の酸素放出バルブを閉じて高圧側
の酸素放出バルブのみから酸素を大気へ放出させ
ることを特徴とする酸素圧縮機の消火方法。1. A system that compresses oxygen with an oxygen compressor and leads it to the process is equipped with a detector that detects an abnormal rise in temperature such as a fire within the system, and when the detector detects an abnormality, a system that communicates with the oxygen compressor is installed. At the same time as closing the valve in the middle of the oxygen piping, open the valves on the low-pressure side and high-pressure side to release the oxygen in the system to the atmosphere, and the valve on the path that introduces nitrogen gas into the system to release the oxygen in the system to the atmosphere. This fire extinguishing method for an oxygen compressor is characterized in that the oxygen release valve on the low pressure side is automatically closed after a certain period of time has elapsed after the oxygen release valve has started, and oxygen is released into the atmosphere only from the oxygen release valve on the high pressure side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP910584A JPS60153484A (en) | 1984-01-20 | 1984-01-20 | Method of extinguishing fire of oxygen compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP910584A JPS60153484A (en) | 1984-01-20 | 1984-01-20 | Method of extinguishing fire of oxygen compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60153484A JPS60153484A (en) | 1985-08-12 |
| JPH0226714B2 true JPH0226714B2 (en) | 1990-06-12 |
Family
ID=11711345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP910584A Granted JPS60153484A (en) | 1984-01-20 | 1984-01-20 | Method of extinguishing fire of oxygen compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60153484A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945241A1 (en) * | 1999-09-21 | 2001-04-05 | Messer Griesheim Gmbh | Process for the gentle compression of high-purity gases |
| CN110841215A (en) * | 2019-10-12 | 2020-02-28 | 北京百达先锋气体科技有限公司 | Turbine oxygen compressor nitrogen security system suitable for VPSA oxygen generation technology |
-
1984
- 1984-01-20 JP JP910584A patent/JPS60153484A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60153484A (en) | 1985-08-12 |
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