JPH0791599A - Gas supply system provided with method and apparatus for preventing gas leakage therein - Google Patents

Gas supply system provided with method and apparatus for preventing gas leakage therein

Info

Publication number
JPH0791599A
JPH0791599A JP5237691A JP23769193A JPH0791599A JP H0791599 A JPH0791599 A JP H0791599A JP 5237691 A JP5237691 A JP 5237691A JP 23769193 A JP23769193 A JP 23769193A JP H0791599 A JPH0791599 A JP H0791599A
Authority
JP
Japan
Prior art keywords
gas
gas cylinder
temperature
pressure
cylinder
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.)
Granted
Application number
JP5237691A
Other languages
Japanese (ja)
Other versions
JP3076182B2 (en
Inventor
Naoto Tashiro
直登 田代
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.)
NEC Kyushu Ltd
Original Assignee
NEC Kyushu 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 NEC Kyushu Ltd filed Critical NEC Kyushu Ltd
Priority to JP05237691A priority Critical patent/JP3076182B2/en
Publication of JPH0791599A publication Critical patent/JPH0791599A/en
Application granted granted Critical
Publication of JP3076182B2 publication Critical patent/JP3076182B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To surely prevent gas leakage caused by abnormal pressure rise in a gas cylinder. CONSTITUTION:A gas cylinder 1a is heated in a thermostatic oven 3a to raise pressure in the gas cylinder 1a. If the thermostatic oven 3a or a thermostatic oven controller 4a is failured to raise abnormally the heating temperature of the gas cylinder 1a, a temperature sensor 6a and pressure switch 5a detect it operatively so that a control section 14a outputs interlock signals respectively to a power supply shut-off circuit 7a and cooling means 8a. Thus, the cooling means 8a and power supply shut-off circuit 7a of the thermostatic oven 3a are operated to cool the gas cylinder 1a and lower the temperature of the gas cylinder 1a for preventing gas leakage. That is, the gas leakage from a fusible plug and pressure broken valve (safety valve) provided in the gas cylinder 1a can be prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ガス漏れ防止方法およ
びその装置に関し、特に、ガスシリンダを加温してガス
供給を行うガス供給系のガス漏れ防止方法およびその装
置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas leakage prevention method and apparatus, and more particularly to a gas leakage prevention method and apparatus for a gas supply system that heats a gas cylinder to supply gas.

【0002】[0002]

【従来の技術】従来、ClF3ガスのような蒸気圧の低
いガスを供給するガス供給系は、図3に示すように、主
に、ガスを収容するガスシリンダ1Xと、ガス需要設備
に一定圧力のガスを供給するためのレギュレータ2X
と、ガスシリンダ1Xを加温するための恒温槽3Xと、
恒温槽3Xを制御するための恒温槽コントローラ4X
と、その電源5Xとで構成されている。
Conventionally, a gas supply system for supplying vapor pressure low gas such as ClF 3 gas, as shown in FIG. 3, mainly, the gas cylinder 1X for accommodating a gas, constant gas demand facilities Regulator 2X for supplying pressure gas
And a constant temperature bath 3X for heating the gas cylinder 1X,
Temperature chamber controller 4X for controlling temperature chamber 3X
And its power supply 5X.

【0003】次に、このガス供給系の動作について説明
する。
Next, the operation of this gas supply system will be described.

【0004】ガスシリンダ1Xを恒温槽3Xで加温し、
ガスシリンダ1X内の圧力を上昇させる。この際、恒温
槽3Xの温度制御は恒温槽コントローラ4Xで行う。そ
して、ガス需要設備へのガスの供給はレギュレータ2X
にて綿密な圧力調整をして行う。
The gas cylinder 1X is heated in a thermostatic chamber 3X,
The pressure in the gas cylinder 1X is increased. At this time, the temperature of the constant temperature bath 3X is controlled by the constant temperature bath controller 4X. And supply of gas to gas demand equipment is regulator 2X
Adjust the pressure carefully at.

【0005】例えば、ClF3ガスを供給する場合、通
常ガスシリンダ1Xが設置される場所は25℃程度の環
境であり、ガスシリンダ1Xを加温しない状態ではガス
シリンダ1X内の圧力は0.7kg/cm2g程度であ
る。また、この状態でガスの供給を継続すれば、ClF
3ガスが液体からガスになる時の気化熱によりガスシリ
ンダ1Xの温度が低下していき、圧力低下が発生する。
ガスシリンダ1Xを35℃に加温すれば、常時1.5k
g/cm2g程度の圧力で常時ガスを供給できる。
For example, when supplying ClF 3 gas, the place where the gas cylinder 1X is normally installed is an environment of about 25 ° C., and the pressure inside the gas cylinder 1X is 0.7 kg when the gas cylinder 1X is not heated. / Cm 2 g. Also, if the gas supply is continued in this state, ClF
(3) The temperature of the gas cylinder 1X lowers due to the heat of vaporization when the gas changes from liquid to gas, causing a pressure drop.
If the gas cylinder 1X is heated to 35 ° C, it is always 1.5k
Gas can be constantly supplied at a pressure of about g / cm 2 g.

【0006】また、他のガス供給系としては、図4に示
すように、ガスボンベ1Yを冷却機構11Yによって冷
却できるようにするとともに、予め圧力調整器2Yのガ
ス入口3Yとガス出口4Y間の温度差を測定しておき、
この温度差だけガスボンベ1Yの出口のガス温度が低く
なるように自動制御機構12Yを介して冷却機構11Y
を作動せしめ、ガスボンべ1Yの出口の供給ガスの温度
が圧力調整器2Yのガス出口4Yにおけるガスの温度と
ほぼ等しいか低くなるようにするものがある(特開平1
−266400号公報参照)。
As another gas supply system, as shown in FIG. 4, the gas cylinder 1Y can be cooled by a cooling mechanism 11Y, and the temperature between the gas inlet 3Y and the gas outlet 4Y of the pressure regulator 2Y is preset. Measure the difference,
The cooling mechanism 11Y is controlled through the automatic control mechanism 12Y so that the gas temperature at the outlet of the gas cylinder 1Y becomes lower by this temperature difference.
Is operated so that the temperature of the supply gas at the outlet of the gas cylinder 1Y is substantially equal to or lower than the temperature of the gas at the gas outlet 4Y of the pressure regulator 2Y.
-266400).

【0007】[0007]

【発明が解決しようとする課題】上述した従来の図3に
示したガス供給系では、ガスの圧力をモニターせずにガ
スシリンダを加温しているため、恒温槽の恒温槽コント
ローラが故障し、加温温度が異常な値まで上昇しても保
護動作を行わず、ガスシリンダ内の圧力が上昇し、かつ
ガスシリンダ自体の温度が上昇し、ガスシリンダに設け
られた可溶栓から勢い良くガスが吹き出して漏れてしま
うという問題点がある。このことはガスが有害なもので
ある場合に特に深刻である。
In the above-mentioned conventional gas supply system shown in FIG. 3, the gas cylinder is heated without monitoring the gas pressure, so that the thermostatic chamber controller of the thermostatic chamber fails. Protective action is not performed even if the heating temperature rises to an abnormal value, the pressure in the gas cylinder rises, and the temperature of the gas cylinder itself rises, and the fusible plug provided on the gas cylinder vigorously There is a problem that gas is blown out and leaks. This is especially true when the gas is harmful.

【0008】ClF3ガスの場合、可溶栓の破壊する温
度は45℃〜60℃である。また、45℃〜60℃での
ガスの圧力は2.5kg/cm2g〜5kg/cm2g程
度である。
In the case of ClF 3 gas, the temperature at which the fusible plug breaks is 45 ° C to 60 ° C. The pressure of the gas at 45 ° C. to 60 ° C. is 2.5kg / cm 2 g~5kg / cm 2 g or so.

【0009】そして、ガスシリンダ温度が可溶栓の破壊
温度まで達する以前に、ガスシリンダに設けられた圧力
破壊弁(安全弁)の破壊圧力に達するガスの場合は、圧
力破壊弁からガス漏れを起こす場合もある。
If the gas reaches the breaking pressure of the pressure breaking valve (safety valve) provided in the gas cylinder before the temperature of the gas cylinder reaches the breaking temperature of the fusible plug, gas leaks from the pressure breaking valve. In some cases.

【0010】図4に示したガス供給系では、圧力調整器
のガス出流れ減少を防止できるものの、ガスシリンダか
らの漏れは防止できない。また、単に温度差だけにより
冷却機構を制御するものなので、何等かの外乱により保
護動作が行われない恐れがある。
The gas supply system shown in FIG. 4 can prevent a decrease in the gas output flow of the pressure regulator, but cannot prevent leakage from the gas cylinder. Further, since the cooling mechanism is controlled only by the temperature difference, there is a possibility that the protective operation is not performed due to some disturbance.

【0011】本発明は、上記従来技術の有する問題点に
鑑みてなされたものであり、ガスシリンダ内の異常圧力
上昇に起因するガス漏れを確実に防止するガス漏れ防止
方法およびその装置を提供することを目的する。
The present invention has been made in view of the above-mentioned problems of the prior art, and provides a gas leakage prevention method and apparatus for surely preventing gas leakage due to abnormal pressure rise in a gas cylinder. The purpose.

【0012】[0012]

【課題を解決するための手段】上記目的を達成するため
の本発明のガス漏れ防止方法は、ガスシリンダを加温し
て、ガスの送気圧力を高めて供給を行うガス供給系にお
いて、前記ガスシリンダからのガス送気圧力および前記
ガスシリンダの温度を検出し、前記ガス送気圧力および
前記温度の少なくとも一方の検出値が対応する許容値よ
りも上昇した場合に、前記ガスシリンダを冷却するとと
もに、前記加温動作を停止させることを特徴とするもの
である。
The gas leakage preventing method of the present invention for achieving the above object is a gas supply system for supplying gas by heating a gas cylinder to increase gas supply pressure. The gas supply pressure from the gas cylinder and the temperature of the gas cylinder are detected, and the gas cylinder is cooled when the detected value of at least one of the gas supply pressure and the temperature is higher than the corresponding allowable value. At the same time, the heating operation is stopped.

【0013】また、本発明のガス漏れ防止装置は、ガス
シリンダと、該ガスシリンダを加温するための加温手段
とを備え、ガスの送気圧力を高めて供給を行うガス供給
系において、前記ガスシリンダからのガス送気圧力を検
出するための圧力スイッチと、前記ガスシリンダの温度
を検出するための温度センサと、前記ガスシリンダを冷
却するための冷却手段と、前記加温手段へ供給する電流
を遮断可能な電源遮断回路と、前記ガス送気圧力の許容
値および前記ガスシリンダの温度の許容値が予めそれぞ
れ設定され、前記圧力スイッチで検出されたガス送気圧
力および前記温度センサで検出された温度の少なくとも
一方が対応する許容値よりも上昇した場合、前記電源遮
断回路を動作させるとともに、前記冷却手段を動作させ
る制御部と、を有することを特徴とするものである。
Further, the gas leakage prevention device of the present invention is provided with a gas cylinder and a heating means for heating the gas cylinder, and in a gas supply system for supplying gas by increasing the gas supply pressure, A pressure switch for detecting the gas supply pressure from the gas cylinder, a temperature sensor for detecting the temperature of the gas cylinder, a cooling means for cooling the gas cylinder, and a heating means. The power supply cutoff circuit capable of cutting off the electric current, the allowable value of the gas supply pressure and the allowable value of the temperature of the gas cylinder are preset respectively, and the gas supply pressure detected by the pressure switch and the temperature sensor are When at least one of the detected temperatures rises above a corresponding allowable value, the power cutoff circuit is operated, and the cooling unit is operated. And it is characterized in Rukoto.

【0014】[0014]

【作用】万が一、何等かの要因により加温手段が故障し
て、加温温度が異常な値まで上昇した場合、ガスシリン
ダ自体の温度が上昇し、これにより、ガスシリンダ内の
圧力が上昇する。本発明では、ガス送気圧力およびガス
シリンダの温度の少なくとも一方が対応する許容値より
も上昇した場合に、前記ガスシリンダを冷却するととも
に、前記加温動作を停止させる。このように、常時ガス
圧力の上昇および温度の上昇の両方をモニターし、万が
一、一方の検出値による保護動作が行われなくても他方
の検出値による保護動作が行われ、外乱による保護動作
の不実行が発生せず、ガスシリンダに備えられている可
溶栓や圧力破壊弁からのガス漏れを確実に防止できる。
In the unlikely event that the heating means fails due to some reason and the heating temperature rises to an abnormal value, the temperature of the gas cylinder itself rises, which causes the pressure inside the gas cylinder to rise. . In the present invention, when at least one of the gas supply pressure and the temperature of the gas cylinder rises above the corresponding allowable value, the gas cylinder is cooled and the heating operation is stopped. In this way, by constantly monitoring both the rise in gas pressure and the rise in temperature, even if the protective action by one detected value is not performed, the protective action by the other detected value is performed, and the protective action due to disturbance is prevented. The non-execution does not occur, and it is possible to reliably prevent gas leakage from the fusible plug or pressure release valve provided in the gas cylinder.

【0015】[0015]

【実施例】次に、本発明の実施例について図面を参照し
て説明する。
Embodiments of the present invention will now be described with reference to the drawings.

【0016】図1は本発明のガス漏れ防止装置の第1実
施例の構成図である。
FIG. 1 is a block diagram of a first embodiment of a gas leakage prevention device of the present invention.

【0017】図1に示すように、ガス供給系において、
ガスシリンダ(ガスボンベ)1aを恒温槽3aで加温
し、ガスシリンダ1a内の圧力を上昇させる。恒温槽3
aの温度制御は恒温槽コントローラ4aで行う。恒温槽
3aと恒温槽コントローラ4aにより加温手段が構成さ
れている。ガス需要設備への供給はレギュレータ2aに
て綿密な圧力調整をして行う。
As shown in FIG. 1, in the gas supply system,
The gas cylinder (gas cylinder) 1a is heated in the constant temperature bath 3a to increase the pressure inside the gas cylinder 1a. Constant temperature bath 3
The temperature control of a is performed by the constant temperature bath controller 4a. A constant temperature bath 3a and a constant temperature bath controller 4a constitute a heating means. Supply to the gas demand equipment is performed by carefully adjusting the pressure with the regulator 2a.

【0018】圧力スイッチ5aはガス供給配管に設けら
れ、ガス送気圧を検出し、温度センサ6aは、ガスシリ
ンダ1aの温度を検出し、それぞれの検出値は後述する
制御部14aに入力される。冷却手段8aは、ファン9
aとラジエータ12a等から構成され、このファン9a
はラジエータ12aを介して冷風11aをガスシリンダ
1aに吹き付けて冷却することができる。電源遮断回路
7aは、恒温槽3aの電源ラインすなわち電源10aと
恒温槽コントローラ4aとの間に設けられ、電源10a
から恒温槽コントローラ4aに電流を供給したり、該電
流の供給を遮断して恒温槽3aの加温動作を停止可能な
ものである。
The pressure switch 5a is provided in the gas supply pipe, detects the gas supply pressure, the temperature sensor 6a detects the temperature of the gas cylinder 1a, and the respective detected values are input to the control unit 14a described later. The cooling means 8a is a fan 9
a, a radiator 12a, etc., and this fan 9a
Can cool the gas cylinder 1a by blowing cool air 11a through the radiator 12a. The power cutoff circuit 7a is provided between the power supply line of the constant temperature bath 3a, that is, between the power supply 10a and the constant temperature bath controller 4a.
To supply a current to the constant temperature bath controller 4a, or interrupt the supply of the current to stop the heating operation of the constant temperature bath 3a.

【0019】制御部14aは、ガスシリンダ1aからの
前記ガス送気圧力の許容値およびガスシリンダ1aの温
度の許容値が予めそれぞれ設定され、圧力スイッチ5a
で検出されたガス送気圧力および温度センサ6aで検出
された温度のいずれか一方が対応する前記許容値よりも
上昇した場合、電源遮断回路7aを動作させるととも
に、冷却手段8aを動作させる。これにより、恒温槽3
aによるガスシリンダ1aの加温動作は停止し、ガスシ
リンダ1aは冷却手段8aにより強制的に冷却される。
In the control unit 14a, the allowable value of the gas supply pressure from the gas cylinder 1a and the allowable value of the temperature of the gas cylinder 1a are set in advance, and the pressure switch 5a is set.
When either one of the gas supply pressure detected in step 1 and the temperature detected by the temperature sensor 6a exceeds the corresponding allowable value, the power cutoff circuit 7a is operated and the cooling means 8a is operated. As a result, the constant temperature bath 3
The heating operation of the gas cylinder 1a by a is stopped, and the gas cylinder 1a is forcibly cooled by the cooling means 8a.

【0020】次に、ガス漏れ防止装置の動作すなわちガ
ス漏れ防止方法について説明する。万が一、恒温槽3a
や恒温槽コントローラ4aが故障し、加温温度が異常上
昇した場合、温度センサ6aおよび圧力スイッチ5aの
少なくとも一方が検出値の異常上昇を検知して動作し、
そして、制御部14aは、インターロック信号を電源遮
断回路7aおよび冷却手段8aにそれぞれ供給する。こ
れにより、冷却手段8aおよび恒温槽3aの電源遮断回
路7aが動作し、ガスシリンダ1aの温度を下げガス漏
れを防止する。すなわち、ガスシリンダ1aに備えられ
ている可溶栓や圧力破壊弁(安全弁)からのガス漏れを
防止できる。
Next, the operation of the gas leakage prevention device, that is, the gas leakage prevention method will be described. By any chance, the constant temperature bath 3a
When the temperature controller 6a fails or the heating temperature rises abnormally, at least one of the temperature sensor 6a and the pressure switch 5a detects an abnormal rise in the detected value and operates.
Then, the control unit 14a supplies an interlock signal to the power cutoff circuit 7a and the cooling means 8a, respectively. As a result, the cooling means 8a and the power cutoff circuit 7a of the constant temperature bath 3a operate to lower the temperature of the gas cylinder 1a and prevent gas leakage. That is, it is possible to prevent gas leakage from the fusible plug or pressure release valve (safety valve) provided in the gas cylinder 1a.

【0021】このように、本実施例は、ガス圧力の上昇
および温度の上昇の両方をモニターし、一方の検出値に
よる保護動作が行われなくても他方の検出値による保護
動作が行われ、外乱による保護動作の不実行が発生せ
ず、ガスシリンダに備えられている可溶栓や圧力破壊弁
からのガス漏れを確実に防止できる。
As described above, in this embodiment, both the increase in gas pressure and the increase in temperature are monitored, and even if the protection operation by one detection value is not performed, the protection operation by the other detection value is performed, It is possible to reliably prevent the leakage of gas from the fusible plug and the pressure release valve provided in the gas cylinder without the failure of the protective operation due to disturbance.

【0022】図2は本発明のガス漏れ防止装置の第2実
施例の構成図である。
FIG. 2 is a block diagram of the second embodiment of the gas leakage prevention device of the present invention.

【0023】図2に示すように、本実施例では、冷却手
段8bが、シャワー器13bと該シャワー器13bの配
管に設けられた調節弁12bとから構成され、調節弁1
2bにインターロック信号が入力されると、調節弁12
bが開き、シャワー器13bより水15bがガスシリン
ダ1bに向けて吹き出すものである。その他の構成は第
1実施例のものと同一である。本実施例では、冷却のた
めの水が必要であるが、冷却手段の構造が簡単であると
いう利点がある。
As shown in FIG. 2, in this embodiment, the cooling means 8b is composed of a shower device 13b and a control valve 12b provided in the pipe of the shower device 13b.
When the interlock signal is input to 2b, the control valve 12
b is opened, and the water 15b is blown out from the shower 13b toward the gas cylinder 1b. The other structure is the same as that of the first embodiment. This embodiment requires water for cooling, but has an advantage that the structure of the cooling means is simple.

【0024】上記各実施例においては、ガス送気圧力お
よびガスシリンダの温度の検出値のいずれか一方が対応
する許容値よりも上昇した場合に、ガスシリンダの冷却
を行うものを示したが、これに限られず、ガス送気圧力
およびガスシリンダの温度の検出値の両方がそれぞれの
許容値よりも上昇した場合に、ガスシリンダを冷却して
もよい。
In each of the above embodiments, the gas cylinder is cooled when any one of the detected values of the gas supply pressure and the temperature of the gas cylinder exceeds the corresponding allowable value. The present invention is not limited to this, and the gas cylinder may be cooled when both the gas supply pressure and the detected value of the temperature of the gas cylinder rise above their respective allowable values.

【0025】[0025]

【発明の効果】本発明は、以上説明したとおりに構成さ
れているので、ガスの異常圧力上昇、ガスシリンダの異
常温度上昇の両方を検知して、万が一、一方の検出値に
よる保護動作が行われなくても他方の検出値による保護
動作が行われるという安全動作が可能で、外乱による保
護動作の不実行が発生せず、ガス漏れを確実に防止でき
るという効果を奏する。
Since the present invention is configured as described above, by detecting both the abnormal pressure rise of gas and the abnormal temperature rise of gas cylinder, the protection operation is performed by the detected value of one of them. It is possible to perform a safe operation in which the protection operation is performed by the other detected value without the need of being opened, non-execution of the protection operation due to disturbance does not occur, and it is possible to reliably prevent gas leakage.

【0026】定量的に言えば、従来、1回/10年の頻
度でガス漏れが発生する危険性を有するのに対し、本発
明のガス供給系では、発生しないようにできる。
Quantitatively speaking, conventionally, there is a risk that gas leakage will occur once every 10 years, but in the gas supply system of the present invention, it can be prevented.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のガス漏れ防止装置の第1実施例の構成
図である。
FIG. 1 is a configuration diagram of a first embodiment of a gas leakage prevention device of the present invention.

【図2】本発明のガス漏れ防止装置の第2実施例の構成
図である。
FIG. 2 is a configuration diagram of a second embodiment of the gas leakage prevention device of the present invention.

【図3】従来のガス漏れ防止装置の構成図である。FIG. 3 is a configuration diagram of a conventional gas leakage prevention device.

【図4】他の従来のガス漏れ防止装置の構成図である。FIG. 4 is a configuration diagram of another conventional gas leakage prevention device.

【符号の説明】[Explanation of symbols]

1a,1b ガスシリンダ 2a,2b レギュレータ 3a,3b 恒温槽 4a,4b 恒温槽コントローラ 5a,5b 圧力スイッチ 6a,6b 温度センサ 7a,7b 電源遮断回路 8a,8b 冷却機構 9a ファン 10a,10b 電源 11a 冷風 12a ラジエータ 12b 調節弁 13b シャワー器 14a,14b 制御部 15b 水 1a, 1b Gas cylinders 2a, 2b Regulators 3a, 3b Constant temperature chambers 4a, 4b Constant temperature chamber controllers 5a, 5b Pressure switches 6a, 6b Temperature sensors 7a, 7b Power cutoff circuits 8a, 8b Cooling mechanisms 9a Fans 10a, 10b Power sources 11a Cold air 12a Radiator 12b Control valve 13b Shower 14a, 14b Control unit 15b Water

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ガスシリンダを加温して、ガスの送気圧
力を高めて供給を行うガス供給系において、 前記ガスシリンダからのガス送気圧力および前記ガスシ
リンダの温度を検出し、 前記ガス送気圧力および前記温度の検出値の少なくとも
一方が対応する許容値よりも上昇した場合に、前記ガス
シリンダを冷却するとともに、前記加温動作を停止させ
ることを特徴とする、ガス供給系におけるガス漏れ防止
方法。
1. A gas supply system for heating a gas cylinder to increase the gas supply pressure to supply gas, wherein the gas supply pressure from the gas cylinder and the temperature of the gas cylinder are detected, A gas in a gas supply system, characterized in that, when at least one of the detected value of the air supply pressure and the temperature rises above a corresponding allowable value, the gas cylinder is cooled and the heating operation is stopped. Leak prevention method.
【請求項2】 ガスシリンダと、該ガスシリンダを加温
するための加温手段とを備え、ガスの送気圧力を高めて
供給を行うガス供給系において、 前記ガスシリンダからのガス送気圧力を検出するための
圧力スイッチと、 前記ガスシリンダの温度を検出するための温度センサ
と、 前記ガスシリンダを冷却するための冷却手段と、 前記加温手段へ供給する電流を遮断可能な電源遮断回路
と、 前記ガス送気圧力の許容値および前記ガスシリンダの温
度の許容値が予めそれぞれ設定され、前記圧力スイッチ
で検出されたガス送気圧力および前記温度センサで検出
された温度の少なくとも一方が対応する許容値よりも上
昇した場合、前記電源遮断回路を動作させるとともに、
前記冷却手段を動作させる制御部と、を有することを特
徴とする、ガス漏れ防止装置を備えたガス供給系。
2. A gas supply system comprising a gas cylinder and a heating means for heating the gas cylinder, wherein the gas supply pressure is increased to supply the gas. A pressure switch for detecting the temperature of the gas cylinder, a temperature sensor for detecting the temperature of the gas cylinder, a cooling unit for cooling the gas cylinder, and a power cutoff circuit capable of cutting off the current supplied to the heating unit. And the allowable value of the gas supply pressure and the allowable value of the temperature of the gas cylinder are respectively set in advance, and at least one of the gas supply pressure detected by the pressure switch and the temperature detected by the temperature sensor corresponds. If it exceeds the allowable value, the power cutoff circuit is operated, and
A gas supply system including a gas leakage prevention device, comprising: a control unit that operates the cooling unit.
JP05237691A 1993-09-24 1993-09-24 Gas leakage prevention method in gas supply system and gas supply system provided with gas leakage prevention device Expired - Lifetime JP3076182B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05237691A JP3076182B2 (en) 1993-09-24 1993-09-24 Gas leakage prevention method in gas supply system and gas supply system provided with gas leakage prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05237691A JP3076182B2 (en) 1993-09-24 1993-09-24 Gas leakage prevention method in gas supply system and gas supply system provided with gas leakage prevention device

Publications (2)

Publication Number Publication Date
JPH0791599A true JPH0791599A (en) 1995-04-04
JP3076182B2 JP3076182B2 (en) 2000-08-14

Family

ID=17019089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP05237691A Expired - Lifetime JP3076182B2 (en) 1993-09-24 1993-09-24 Gas leakage prevention method in gas supply system and gas supply system provided with gas leakage prevention device

Country Status (1)

Country Link
JP (1) JP3076182B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7138005B2 (en) 2001-09-11 2006-11-21 Sumitomo Metal Mining Co., Ltd. Nickel refining method
JP2009108925A (en) * 2007-10-30 2009-05-21 Air Liquide Japan Ltd Liquified gas supply system
JP2013148195A (en) * 2012-01-23 2013-08-01 Toshiba Corp Hydrogen gas replenishment control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0189698U (en) * 1987-12-04 1989-06-13
JPH01266400A (en) * 1988-04-13 1989-10-24 Teisan Kk Gas outflow phenomenon preventive method and device for pressure regulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0189698U (en) * 1987-12-04 1989-06-13
JPH01266400A (en) * 1988-04-13 1989-10-24 Teisan Kk Gas outflow phenomenon preventive method and device for pressure regulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7138005B2 (en) 2001-09-11 2006-11-21 Sumitomo Metal Mining Co., Ltd. Nickel refining method
JP2009108925A (en) * 2007-10-30 2009-05-21 Air Liquide Japan Ltd Liquified gas supply system
JP2013148195A (en) * 2012-01-23 2013-08-01 Toshiba Corp Hydrogen gas replenishment control system

Also Published As

Publication number Publication date
JP3076182B2 (en) 2000-08-14

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