JP3019895B2 - Gas supply equipment abnormality monitoring device - Google Patents
Gas supply equipment abnormality monitoring deviceInfo
- Publication number
- JP3019895B2 JP3019895B2 JP4332625A JP33262592A JP3019895B2 JP 3019895 B2 JP3019895 B2 JP 3019895B2 JP 4332625 A JP4332625 A JP 4332625A JP 33262592 A JP33262592 A JP 33262592A JP 3019895 B2 JP3019895 B2 JP 3019895B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pressure
- flow rate
- signal
- abnormality
- 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 - Fee Related
Links
Landscapes
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス供給路、ガス供給
圧力調整機器等の異常を検出するガス供給設備異常監視
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas supply equipment abnormality monitoring apparatus for detecting an abnormality in a gas supply path, a gas supply pressure adjusting device, and the like.
【０００２】[0002]
【従来の技術】ガスメータから下流側については、ガス
メータにガス器具の使用時間を監視し、規定値以上の長
時間使用はガス器具の消し忘れと判断し、ガスの供給を
停止するガス遮断装置が組み込まれるようになってい
る。また、ガスメータから上流側については、ガス配管
内のガス圧と、ガスメータからガス器具等へ供給される
ガス流量とにより、ガス使用時のガス圧力を監視し、異
常検出を行うものが提案されている。2. Description of the Related Art On the downstream side from a gas meter, the gas meter monitors the usage time of the gas appliance, judges that the gas appliance has been forgotten to turn off the gas appliance for a long time exceeding a specified value, and stops the gas supply. It is being incorporated. On the upstream side from the gas meter, a method has been proposed in which the gas pressure in the gas used is monitored by detecting the gas pressure in the gas pipe and the gas flow rate supplied from the gas meter to a gas appliance or the like to detect an abnormality. I have.
【０００３】この種の従来のガスメータの上流側のガス
供給設備異常を検出する装置について図６を用いて説明
する。A conventional apparatus for detecting an abnormality in gas supply equipment upstream of a gas meter of this type will be described with reference to FIG.
【０００４】図６において、１はガスボンベ、２はボン
ベ１の元栓、３は圧力調整器、４はガスメータ、５はガ
ス配管、６はガス配管５に接続されたガス圧力を測定す
る圧力検出手段としての圧力センサ、７はガス配管５内
のガス流量を測定する流量センサ、８はガス器具であ
る。さらに、９は流量センサ７からの流量信号を入力す
るコンパレータ、１０は圧力センサ６からの圧力検出信
号を入力するコンパレータ、１１はゲート回路でコンパ
レータ９、１０からの出力信号を入力し、論理積演算し
た出力をタイマ回路１２へ出力するように接続され、タ
イマ回路１２は、所定時間以上ゲート回路１１から出力
信号が接続すれば次段の出力手段１３へ信号を出力する
ように接続されている。そして、流量センサ７が所定流
量以上検出時に、すなわち、ガス器具８使用時に、圧力
センサ６からの圧力検出信号が所定の上限値（例えば、
３３０ｍｍＨ2 Ｏ）以上か、所定の下限値（例えば、２
３０ｍｍＨ2 Ｏ）以下であれば、ゲート回路１１が異常
時の出力信号をタイマ回路１２へ出力し、タイマ回路１
２では、この状態が所定時間継続時に出力手段１３へ異
常である出力信号を出力する。出力手段１３では、所定
のガス供給設備異常を示すＬＥＤを点灯あるいは点滅さ
せたり、ガスの供給を停止させたりする。In FIG. 6, 1 is a gas cylinder, 2 is a main stopper of the cylinder 1, 3 is a pressure regulator, 4 is a gas meter, 5 is a gas pipe, and 6 is a pressure detecting means for measuring a gas pressure connected to the gas pipe 5. Is a pressure sensor, 7 is a flow rate sensor for measuring the gas flow rate in the gas pipe 5, and 8 is a gas appliance. Further, 9 is a comparator for inputting a flow signal from the flow sensor 7, 10 is a comparator for inputting a pressure detection signal from the pressure sensor 6, 11 is a gate circuit for inputting an output signal from the comparators 9 and 10, and logical product The calculated output is connected to the timer circuit 12, and the timer circuit 12 is connected so as to output a signal to the next stage output means 13 when an output signal is connected from the gate circuit 11 for a predetermined time or more. . Then, when the flow rate sensor 7 detects a predetermined flow rate or more, that is, when the gas appliance 8 is used, the pressure detection signal from the pressure sensor 6 changes to a predetermined upper limit value (for example,
330mmH 2 O) or more or a predetermined lower limit value (e.g., 2
If it is less than 30 mmH 2 O), the gate circuit 11 outputs an output signal at the time of abnormality to the timer circuit 12,
In step 2, an abnormal output signal is output to the output means 13 when this state continues for a predetermined time. The output unit 13 turns on or blinks an LED indicating a predetermined gas supply facility abnormality, or stops gas supply.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、ガス使用時に対して一律的にガス供給設備
の供給圧力異常の検出を行なっている。従って、供給圧
力異常監視装置の電源として電池を用いたものでは、ガ
ス使用時には常時圧力変動異常を監視しなければなら
ず、消費電力が増加し、電池寿命が短くなる。また圧力
調整器のガス調整圧は、約５０ｍｍＨ2 Ｏ程度ばらつき
があり、経年変化によって調整圧力は低下傾向を示す、
さらにガス使用時のガス流量によってガス調整圧力が変
化するので、ガス使用時に一律的に所定の規格値（２３
０〜３３０ｍｍＨ2 Ｏ）を外れるか否かという判断で
は、誤検知、検知ミスを犯すことが大きいという課題が
あった。However, in the above-described conventional configuration, the detection of the supply pressure abnormality of the gas supply equipment is performed uniformly when the gas is used. Therefore, in the case where a battery is used as a power supply of the supply pressure abnormality monitoring device, it is necessary to constantly monitor the pressure fluctuation abnormality when gas is used, which increases power consumption and shortens the battery life. Also, the gas adjustment pressure of the pressure regulator has a variation of about 50 mmH 2 O, and the adjustment pressure tends to decrease due to aging.
Further, since the gas adjustment pressure changes depending on the gas flow rate when the gas is used, a predetermined standard value (23
In decision of whether 0~330mmH 2 O) out of the false positives, there is a problem that it is large commit erroneous detection.
【０００６】本発明は上記課題を解決するもので、圧力
調整器の調整圧力特性（ばらつき、経年変化、流量特性
等）を考慮して、ガス使用時におけるガス供給圧力をガ
ス使用流量に関連させて検査することにより本来の規格
値に対して満足すべき圧力が供給されているか否かを的
確なタイミングでかつ誤検出なしに判定することを目的
とする。 SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and considers the regulated pressure characteristics (variation, aging, flow rate characteristics, etc.) of a pressure regulator, and relates the gas supply pressure during gas use to the gas use flow rate. The purpose of this is to determine at a precise timing and without erroneous detection whether or not a pressure that satisfies the original standard value is supplied
And
【０００７】[0007]
【０００８】[0008]
【課題を解決するための手段】本発明は、ガス流体の圧
力を調整する圧力調整器と、前記ガス流体の圧力を測定
する圧力検出手段と、前記ガス流体の流量を計量するガ
ス流量検出手段と、前記圧力検出手段からの測定圧力信
号と前記ガス流量検出手段からのガス流量信号とを入力
し、ガス使用流量が減少している区間を継続的に監視
し、前記区間における前記圧力検出手段からの測定圧力
信号と所定のガス圧力異常判定上限値とを比較判定し、
ガス供給設備の異常判定を行うガス圧力監視手段とから
構成したものである。SUMMARY OF THE INVENTION The present invention provides a pressure regulator for adjusting the pressure of a gas fluid, a pressure detector for measuring the pressure of the gas fluid, and a gas flow detector for measuring the flow rate of the gas fluid. When the pressure measured pressure signal from the detection means and inputs the gas flow rate signal from the gas flow rate detection means, a section gas used flow rate is decreasing continuously monitors the in the interval pressure detecting means From the measured pressure signal and the predetermined gas pressure abnormality determination upper limit,
And gas pressure monitoring means for determining an abnormality of the gas supply equipment.
【０００９】[0009]
【００１０】[0010]
【作用】本発明は上記構成によって、下記の作用が得ら
れる。According to the present invention, the following effects can be obtained by the above configuration.
【００１１】ガス使用流量が減少している区間を継続的
に監視し、前記区間における圧力検出手段からの測定圧
力信号と所定のガス圧力異常判定上限値とを比較し、圧
力調整器の調整圧力特性に合致したガス圧力異常判定を
行い、本来は圧力調整器の特性から全く判定不要な圧力
異常判断を排除できる。The section in which the gas usage flow rate is decreasing is continuously monitored , and the measured pressure signal from the pressure detecting means in the section is compared with a predetermined gas pressure abnormality determination upper limit value. A gas pressure abnormality determination that matches the characteristics is performed, and a pressure abnormality determination that does not need to be determined at all from the characteristics of the pressure regulator can be eliminated.
【００１２】[0012]
【００１３】[0013]
【実施例】以下本発明の実施例を図１から図５を参照し
て説明する。なお上記従来例と同一相当部分には同一符
号を付与して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same parts as those in the conventional example are denoted by the same reference numerals and described.
【００１４】実施例１ 図１は実施例１のガス供給設備異常監視装置のブロック
図である。同図において、１４は、圧力検出手段（以
下、圧力センサとする）６からの測定圧力信号とガス流
量検出手段（以下、流量センサとする）７からのガス流
量信号と入力し、ガス使用流量が減少している区間を継
続的に監視し、前記区間における圧力センサ６からの測
定圧力信号と所定のガス圧力異常判定上限値とを比較
し、ガス供給設備の異常判定を行うガス圧力監視手段で
ある。Embodiment 1 FIG. 1 is a block diagram of a gas supply facility abnormality monitoring apparatus according to Embodiment 1. In the figure, reference numeral 14 denotes a gas pressure signal input from a pressure detecting means (hereinafter, referred to as a pressure sensor) 6 and a gas flow rate signal from a gas flow rate detecting means (hereinafter, referred to as a flow sensor) 7. Gas pressure monitoring means for continuously monitoring the section in which the pressure is decreasing , comparing the measured pressure signal from the pressure sensor 6 in the section with a predetermined gas pressure abnormality determination upper limit value, and determining abnormality of the gas supply equipment. It is.
【００１５】さらにガス圧力監視手段１４は、ガス漏れ
またはガス供給設備異常検出時に、電話回線インターフ
ェース１５を介して電話回線により、ガス供給業者等
（図示せず）へ通報するように接続されている。Further, the gas pressure monitoring means 14 is connected so as to notify a gas supplier or the like (not shown) via a telephone line via a telephone line interface 15 when a gas leak or a gas supply equipment abnormality is detected. .
【００１６】ガス圧力監視手段１４は圧力センサ６から
圧力検出信号を、流量センサ７からガス流量信号を入力
し、次のようなガス圧力正常・異常判定を行う。The gas pressure monitoring means 14 inputs a pressure detection signal from the pressure sensor 6 and a gas flow rate signal from the flow rate sensor 7 and performs the following gas pressure normality / abnormality determination.
【００１７】図２は各時刻：Ｔにおける圧力センサ６か
らの測定圧力信号：Ｐである。圧力検出信号は、ガス圧
力に比例したアナログ出力信号を出力するように構成さ
れている。FIG. 2 shows a measured pressure signal: P from the pressure sensor 6 at each time: T. The pressure detection signal is configured to output an analog output signal proportional to the gas pressure.
【００１８】図３は各時刻：Ｔにおける流量センサ７か
らのガス流量信号：Ｑである。 ＜ガス使用時の圧力変動検査（供給圧力検査）＞図２、
３に示すように、Ｔ＝Ｔ１〜Ｔ６のガス使用時におい
て、おもに圧力調整器３の圧力調整特性によってガス使
用流量に応じて、ガス供給圧力、すなわち圧力センサ６
の測定圧力信号は変動し、流量が多いほど測定圧力信号
は低下する傾向がある。FIG. 3 shows a gas flow rate signal Q from the flow rate sensor 7 at each time T. <Inspection of pressure fluctuation when using gas (supply pressure inspection)>
As shown in FIG. 3, when the gas of T = T1 to T6 is used, the gas supply pressure, that is, the pressure sensor 6 mainly depends on the gas use flow rate by the pressure adjustment characteristic of the pressure regulator 3.
The measured pressure signal fluctuates, and as the flow rate increases, the measured pressure signal tends to decrease.
【００１９】Ｔ＝Ｔ１で、Ｑ１のガス流量のガス器具を
使用開始し、Ｔ＝Ｔ２でさらに別のガス器具を使用し、
ガス流量がＱ２となり、以下同様に、Ｔ＝Ｔ３でＱ３、
Ｔ＝Ｔ４でＱ４、Ｔ＝Ｔ５でＱ５、Ｔ＝Ｔ６でガス使用
停止した。このとき、ガス圧力監視手段１４は、流量セ
ンサ７を介して、ガス使用流量信号を入力し、まずＴ＝
Ｔ１で使用開始時であり、ガス使用流量比較するための
基準とするため、圧力センサ６から圧力検出信号を入力
する。At T = T1, a gas appliance having a gas flow rate of Q1 is started to be used, and at T = T2, another gas appliance is used.
The gas flow rate becomes Q2, and similarly, when T = T3, Q3,
Gas use was stopped at T = T4, Q4 at T = T5, Q5 at T = T5, and gas use at T = T6. At this time, the gas pressure monitoring means 14 inputs a gas use flow rate signal via the flow rate sensor 7, and first, T =
At the time of use start at T1, a pressure detection signal is input from the pressure sensor 6 as a reference for comparing gas use flow rates.
【００２０】その後、Ｔ＝Ｔ２、Ｔ３にてガス使用流量
がＱ２、Ｑ３へ増加するので、流量Ｑ２、Ｑ３は使用開
始時のＱ１より多いため、ガス圧力監視手段１４は、圧
力センサ６からの圧力計測は行わない。Thereafter, at T = T2, T3, the gas usage flow rate increases to Q2, Q3. Since the flow rates Q2, Q3 are higher than Q1 at the start of use, the gas pressure monitoring means 14 No pressure measurement is performed.
【００２１】さらに、Ｔ＝Ｔ４、にてガス使用流量が減
少し、流量Ｑ４は最大流量時のＱ３より少ないため、こ
こでガス圧力監視手段１４は、圧力センサ６によって圧
力検査を行う。Further, at T = T4, the gas use flow rate decreases, and the flow rate Q4 is smaller than Q3 at the maximum flow rate. Therefore, the gas pressure monitoring means 14 performs a pressure test by the pressure sensor 6.
【００２２】従って、Ｔ＝Ｔ１〜Ｔ６のガス使用時にお
いてＴ＝Ｔ１〜Ｔ２とＴ＝Ｔ４〜Ｔ５の時間のみ圧力セ
ンサ６による圧力検出を行う。しかも、このときが圧力
センサ６による測定圧力信号がガス供給期間を通して最
も高くなる可能性がある。Therefore, when the gas of T = T1 to T6 is used, the pressure is detected by the pressure sensor 6 only during the time of T = T1 to T2 and T = T4 to T5. Moreover, at this time, there is a possibility that the pressure signal measured by the pressure sensor 6 becomes highest throughout the gas supply period.
【００２３】この測定圧力信号がガス供給期間を通して
最も高くなるＴ＝Ｔ１〜Ｔ２とＴ＝Ｔ４〜Ｔ５の時間に
対して、ガス圧力監視手段１４は、ガス供給圧力を監視
し、ガス供給圧力値の規格上限（３３０ｍｍＨ2Ｏ）を
越えているか否かの大小比較判断し、規格上限（３３０
ｍｍＨ2Ｏ）を越えていれば、ガス供給設備の調整圧力
異常であると判定され、電話回線インターフェース１５
を介して電話回線により、ガス供給業者等（図示せず）
へ通報する。For the times T = T1 to T2 and T = T4 to T5 when the measured pressure signal is highest throughout the gas supply period, the gas pressure monitoring means 14 monitors the gas supply pressure and determines the gas supply pressure value. Of the standard upper limit (330 mmH2O).
mmH2O), it is determined that the adjustment pressure of the gas supply equipment is abnormal, and the telephone line interface 15
Via a telephone line via a gas supplier (not shown)
Report to.
【００２４】なお本実施例では、圧力センサ６と流量セ
ンサ７とはガスメータ４の外部に接続されるように構成
されているが、ガスメータ４に内蔵する構成でも同様の
効果を有することは言うまでもない。In the present embodiment, the pressure sensor 6 and the flow sensor 7 are configured to be connected to the outside of the gas meter 4, but it is needless to say that the same effect can be obtained by the configuration built in the gas meter 4. .
【００２５】また、圧力センサ６や流量センサ７を圧力
調整器３に内蔵する構成でも同様の効果を有することは
言うまでもない。It is needless to say that the same effect can be obtained even when the pressure sensor 6 and the flow rate sensor 7 are incorporated in the pressure regulator 3.
【００２６】さらに、ガス圧力監視手段１６は、マイク
ロコンピュータによるソフトウェアロジックにより実現
してもよいし、デジタル回路によって実現しても同様の
効果を有することは言うまでもない。Further, it goes without saying that the gas pressure monitoring means 16 may be realized by software logic by a microcomputer, or may have the same effect by being realized by a digital circuit.
【００２７】実施例２ 図４は実施例２のガス供給設備異常監視装置の制御ブロ
ック図である。同図において、１６は、圧力検出手段
（以下、圧力センサとする）６とガス流量検出手段（以
下、流量センサとする）７とへ電源供給するための電
池、１７は、電池１６から圧力センサ６への電源供給を
制御するリレーまたはトランジスタで構成された電源供
給制御手段、１８は、圧力センサ６からの測定圧力信号
と流量センサ７からのガス流量信号と入力し、ガス使用
流量が最少時に電源供給制御手段１７を介して圧力セン
サ６に電源供給し、圧力センサ６からの測定圧力信号と
所定のガス圧力異常判定上限値とを比較し、ガス供給設
備の異常判定を行うガス圧力監視手段である。Second Embodiment FIG. 4 is a control block diagram of a gas supply facility abnormality monitoring device according to a second embodiment. In the figure, reference numeral 16 denotes a battery for supplying power to a pressure detecting means (hereinafter, referred to as a pressure sensor) 6 and a gas flow detecting means (hereinafter, referred to as a flow sensor) 7, and 17 denotes a battery from the battery 16 to a pressure sensor. A power supply control means 18 constituted by a relay or a transistor for controlling the power supply to the power supply 6 receives the measured pressure signal from the pressure sensor 6 and the gas flow rate signal from the flow rate sensor 7 so that the gas flow rate is minimized. Gas pressure monitoring means for supplying power to the pressure sensor 6 via the power supply control means 17, comparing the measured pressure signal from the pressure sensor 6 with a predetermined gas pressure abnormality determination upper limit value, and determining abnormality of the gas supply equipment. It is.
【００２８】さらにガス圧力監視手段１８は、ガス漏れ
またはガス供給設備異常検出時に、電話回線インターフ
ェース１９を介して電話回線により、ガス供給業者等
（図示せず）へ通報するように接続されている。Further, the gas pressure monitoring means 18 is connected so as to notify a gas supplier or the like (not shown) via a telephone line via a telephone line interface 19 when a gas leak or an abnormality in gas supply equipment is detected. .
【００２９】ガス圧力監視手段１８は圧力センサ６から
圧力検出信号を、流量センサ７からガス流量信号を入力
し、次のようなガス圧力正常・異常判定を行う。The gas pressure monitoring means 18 receives a pressure detection signal from the pressure sensor 6 and a gas flow rate signal from the flow rate sensor 7 and performs the following gas pressure normality / abnormality determination.
【００３０】実施例１と同様に図２、３を用いて説明す
る。 ＜ガス使用時の圧力変動検査（供給圧力検査）＞図２、
３に示すように、Ｔ＝Ｔ１〜Ｔ６のガス使用時におい
て、おもに圧力調整器３の圧力調整特性によってガス使
用流量に応じて、ガス供給圧力、すなわち圧力センサ６
の測定圧力信号は変動し、流量が多いほど測定圧力信号
は低下する傾向がある。A description will be given with reference to FIGS. <Inspection of pressure fluctuation when using gas (supply pressure inspection)>
As shown in FIG. 3, when the gas of T = T1 to T6 is used, the gas supply pressure, that is, the pressure sensor 6 mainly depends on the gas use flow rate by the pressure adjustment characteristic of the pressure regulator 3.
The measured pressure signal fluctuates, and as the flow rate increases, the measured pressure signal tends to decrease.
【００３１】Ｔ＝Ｔ１で、Ｑ１のガス流量のガス器具を
使用開始し、Ｔ＝Ｔ２でさらに別のガス器具を使用し、
ガス流量がＱ２となり、以下同様に、Ｔ＝Ｔ３でＱ３、
Ｔ＝Ｔ４でＱ４、Ｔ＝Ｔ５でＱ５、Ｔ＝Ｔ６でガス使用
停止した。このとき、ガス圧力監視手段１８は、流量セ
ンサ７を介して、ガス使用流量信号を入力し、まずＴ＝
Ｔ１で使用開始時であり、ガス使用流量比較するための
基準とするため、図５に示すように電源供給制御手段１
７に圧力センサ６へ電池１６から電源供給する制御信号
を出力し、圧力センサ６を動作状態に保つ。At T = T1, a gas appliance having a gas flow rate of Q1 is started to be used, and at T = T2, another gas appliance is used.
The gas flow rate becomes Q2, and similarly, when T = T3, Q3,
Gas use was stopped at T = T4, Q4 at T = T5, Q5 at T = T5, and gas use at T = T6. At this time, the gas pressure monitoring means 18 inputs a gas use flow rate signal via the flow rate sensor 7, and first, T =
At the start of use at T1, the power supply control means 1 as shown in FIG.
A control signal for supplying power from the battery 16 to the pressure sensor 6 is output to 7 to keep the pressure sensor 6 in an operating state.
【００３２】その後、Ｔ＝Ｔ２、Ｔ３にてガス使用流量
がＱ２、Ｑ３へ増加するので、流量Ｑ２、Ｑ３は使用開
始時のＱ１より多いため、ガス圧力監視手段１８は、電
源供給制御手段１７に圧力センサ６へ電池１６から電源
供給する制御信号を出力し、圧力センサ６を非動作状態
にする。Thereafter, at T = T2, T3, the gas use flow rate increases to Q2, Q3. Since the flow rates Q2, Q3 are larger than Q1 at the start of use, the gas pressure monitoring means 18 determines the power supply control means 17 , A control signal for supplying power from the battery 16 to the pressure sensor 6 is output, and the pressure sensor 6 is made inoperative.
【００３３】さらに、Ｔ＝Ｔ４、にてガス使用流量が減
少し、流量Ｑ４は最少流量時のＱ１より少ないため、ガ
ス圧力監視手段１８は、電源供給制御手段１５に圧力セ
ンサ６へ電池１４から電源供給停止する制御信号を出力
し、圧力センサ６を動作状態にする。Further, at T = T4, the gas usage flow rate decreases, and the flow rate Q4 is smaller than Q1 at the minimum flow rate. Therefore, the gas pressure monitoring means 18 sends the power supply control means 15 to the pressure sensor 6 from the battery 14 to the pressure sensor 6. The control signal for stopping the power supply is output, and the pressure sensor 6 is set to the operating state.
【００３４】従って、Ｔ＝Ｔ１〜Ｔ６のガス使用時にお
いてＴ＝Ｔ１〜Ｔ２とＴ＝Ｔ４〜Ｔ５の時間のみ電源供
給制御手段１７を介して圧力センサ６へ電池１６から電
源供給される。しかも、このときが圧力センサ６による
測定圧力信号がガス供給期間を通して最も高くなる可能
性がある。Therefore, when the gas of T = T1 to T6 is used, power is supplied from the battery 16 to the pressure sensor 6 via the power supply control means 17 only during the time of T = T1 to T2 and T = T4 to T5. Moreover, at this time, there is a possibility that the pressure signal measured by the pressure sensor 6 becomes highest throughout the gas supply period.
【００３５】この測定圧力信号がガス供給期間を通して
最も高くなるＴ＝Ｔ１〜Ｔ２とＴ＝Ｔ５〜Ｔ６の時間に
対して、ガス圧力監視手段１８は、ガス供給圧力を監視
し、ガス供給圧力値の規格上限（３３０ｍｍＨ2 Ｏ）を
越えているか否かの大小比較判断し、規格上限（３３０
ｍｍＨ2 Ｏ）を越えていれば、ガス供給設備の調整圧力
異常であると判定され、電話回線インターフェース１９
を介して電話回線により、ガス供給業者等（図示せず）
へ通報する。The gas pressure monitoring means 18 monitors the gas supply pressure for the time T = T1 to T2 and T = T5 to T6 at which the measured pressure signal becomes the highest throughout the gas supply period. Of the standard upper limit (330 mmH 2 O).
mmH 2 O), it is determined that the adjustment pressure of the gas supply equipment is abnormal, and the telephone line interface 19
Via a telephone line via a gas supplier (not shown)
Report to.
【００３６】本実施例では、図５に示すように圧力セン
サ６にＴ＝Ｔ１〜Ｔ２とＴ＝Ｔ４〜Ｔ５の時間に対して
電源供給制御手段１７を介して圧力センサ６へ電池１６
から電源供給されるようになっているが、Ｔ＝Ｔ１やＴ
＝Ｔ４になって一定時間のみ電源供給制御手段１７を介
して圧力センサ６へ電源供給し、供給圧力異常判定が終
了し次第、電源供給制御手段１７を介しての電源供給を
停止するようにすれば、さらに電池の寿命が延ばせる
し、このようなことは可能である。In this embodiment, as shown in FIG. 5, the battery 16 is supplied to the pressure sensor 6 via the power supply control means 17 for the times T = T1 to T2 and T = T4 to T5.
Power is supplied from T = T1 or T = T1
= T4, power is supplied to the pressure sensor 6 via the power supply control means 17 only for a certain period of time, and the power supply via the power supply control means 17 is stopped as soon as the supply pressure abnormality determination is completed. This can further extend the life of the battery, and this is possible.
【００３７】なお本実施例では、圧力センサ６と流量セ
ンサ７とはガスメータ４の外部に接続されるように構成
されいるが、ガスメータ４に内蔵する構成でも同様の効
果を有することは言うまでもない。In the present embodiment, the pressure sensor 6 and the flow sensor 7 are configured to be connected to the outside of the gas meter 4. However, it is needless to say that the same effect can be obtained by the configuration incorporated in the gas meter 4.
【００３８】また、圧力センサ６や流量センサ７を圧力
調整器３に内蔵する構成でも同様の効果を有することは
言うまでもない。It is needless to say that the same effect can be obtained even when the pressure sensor 6 and the flow rate sensor 7 are built in the pressure regulator 3.
【００３９】さらに、ガス圧力監視手段１８は、マイク
ロコンピュータによるソフトウェアロジックにより実現
してもよいし、デジタル回路によって実現しても同様の
効果を有することは言うまでもない。Further, it goes without saying that the gas pressure monitoring means 18 may be realized by software logic by a microcomputer, or may have the same effect by being realized by a digital circuit.
【００４０】[0040]
【発明の効果】以上説明したように本発明のガス供給設
備異常監視装置によれば、以下に示す効果がある。According to the gas supply equipment abnormality monitoring apparatus of the present invention as described above, the following effects can be obtained.
【００４１】ガス使用流量が減少している区間を継続的
に監視し、前記区間における圧力検出手段からの測定圧
力信号と所定のガス圧力異常判定上限値とを比較し、圧
力調整器の調整圧力特性に合致したガス圧力異常判定を
行うことで本来は圧力調整器の特性から全く判定不要な
圧力異常判断を排除できると共に、判定すべき条件を満
足したときのみ圧力異常判定を行うことにより極めて信
頼性の高いガス供給設備異常監視装置を提供できる。The section where the gas usage flow rate is decreasing is continuously monitored , and the measured pressure signal from the pressure detecting means in the section is compared with a predetermined gas pressure abnormality determination upper limit value. By performing a gas pressure abnormality judgment that matches the characteristics, it is possible to eliminate the pressure abnormality judgment that should not be judged at all from the characteristics of the pressure regulator, and it is extremely reliable to perform the pressure abnormality judgment only when the conditions to be judged are satisfied. It is possible to provide a highly reliable gas supply equipment abnormality monitoring device.
【００４２】[0042]
【図１】本発明の実施例１におけるガス供給設備異常監
視装置の制御ブロック図FIG. 1 is a control block diagram of a gas supply facility abnormality monitoring device according to a first embodiment of the present invention.
【図２】同装置におけるガス圧力変化特性図FIG. 2 is a graph showing a gas pressure change characteristic of the apparatus.
【図３】同装置におけるガス流量変化特性図FIG. 3 is a graph showing a change in gas flow rate in the apparatus.
【図４】本発明の実施例２におけるガス供給異常監視装
置の制御ブロック図FIG. 4 is a control block diagram of a gas supply abnormality monitoring device according to a second embodiment of the present invention.
【図５】同装置における電源供給制御手段出力特性図FIG. 5 is an output characteristic diagram of power supply control means in the device.
【図６】従来のガス供給設備異常監視装置の制御ブロッ
ク図FIG. 6 is a control block diagram of a conventional gas supply equipment abnormality monitoring device.
３ 圧力調整器 ６ 圧力検出手段 ７ ガス流量検出手段 １４、１８ ガス圧力監視手段 １６ 電池 １７ 電源供給制御手段 DESCRIPTION OF SYMBOLS 3 Pressure regulator 6 Pressure detecting means 7 Gas flow detecting means 14, 18 Gas pressure monitoring means 16 Battery 17 Power supply control means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浅野 一高 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 坪井 誠 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 平４−44198（ＪＰ，Ａ) ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Ichitaka Asano 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. In-house (56) References JP-A-4-44198 (JP, A)
Claims (1)
前記ガス流体の圧力を測定する圧力検出手段と、前記ガ
ス流体の流量を計量するガス流量検出手段と、前記圧力
検出手段からの測定圧力信号と前記ガス流量検出手段か
らのガス流量信号とを入力し、ガス使用流量が減少して
いる区間を継続的に監視し、前記区間における前記圧力
検出手段からの測定圧力信号と所定のガス圧力異常判定
上限とを比較判定し、ガス供給設備の異常判定を行うガ
ス圧力監視手段とで構成されたガス供給設備異常監視装
置。A pressure regulator for regulating the pressure of the gas fluid;
Pressure detection means for measuring the pressure of the gas fluid, gas flow detection means for measuring the flow rate of the gas fluid, and a measurement pressure signal from the pressure detection means and a gas flow signal from the gas flow detection means. Then, the section where the gas usage flow rate is decreasing is continuously monitored , and the measured pressure signal from the pressure detecting means in the section is compared with a predetermined gas pressure abnormality determination upper limit to determine the abnormality of the gas supply equipment. And a gas pressure monitoring means for performing gas pressure monitoring.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4332625A JP3019895B2 (en) | 1992-12-14 | 1992-12-14 | Gas supply equipment abnormality monitoring device |
| EP19930115967 EP0591886B1 (en) | 1992-10-05 | 1993-10-04 | Apparatus for detecting abnormality of gas supply equipment and method for detecting same |
| AU48763/93A AU654782B2 (en) | 1992-10-05 | 1993-10-04 | Apparatus for detecting abnnormality of gas supply equipment and method for detecting same |
| DE1993613230 DE69313230T2 (en) | 1992-10-05 | 1993-10-04 | Method and device for detecting abnormalities in a gas supply system |
| CA 2107648 CA2107648C (en) | 1992-10-05 | 1993-10-04 | Apparatus for detecting abnormality of gas supply equipment and method for detecting same |
| CN93119614A CN1049725C (en) | 1992-10-05 | 1993-10-05 | Arrangement and method for inspecting of unnormal situation in gas supplying apparatus |
| US08/131,613 US5554976A (en) | 1992-10-05 | 1993-10-05 | Method and apparatus for detecting abnormality in gas supply equipment |
| KR1019930020469A KR970010319B1 (en) | 1992-10-05 | 1993-10-05 | Apparatus for detecting abnormality of gas supply equipment and method for detecting the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4332625A JP3019895B2 (en) | 1992-12-14 | 1992-12-14 | Gas supply equipment abnormality monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06180266A JPH06180266A (en) | 1994-06-28 |
| JP3019895B2 true JP3019895B2 (en) | 2000-03-13 |
Family
ID=18257047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4332625A Expired - Fee Related JP3019895B2 (en) | 1992-10-05 | 1992-12-14 | Gas supply equipment abnormality monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3019895B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172557A (en) * | 2003-12-10 | 2005-06-30 | Matsushita Electric Ind Co Ltd | Gas-blast circuit breaker |
| JP2006153544A (en) * | 2004-11-26 | 2006-06-15 | Yazaki Corp | Apparatus for monitoring pressure regulator |
| GB2444080B (en) * | 2006-11-23 | 2008-10-08 | Validation Ct | Gas monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670575B2 (en) * | 1990-06-12 | 1994-09-07 | 工業技術院長 | Gas pressure abnormality detection device |
-
1992
- 1992-12-14 JP JP4332625A patent/JP3019895B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06180266A (en) | 1994-06-28 |
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