JP3068686B2 - Gas shut-off device - Google Patents
Gas shut-off deviceInfo
- Publication number
- JP3068686B2 JP3068686B2 JP3294102A JP29410291A JP3068686B2 JP 3068686 B2 JP3068686 B2 JP 3068686B2 JP 3294102 A JP3294102 A JP 3294102A JP 29410291 A JP29410291 A JP 29410291A JP 3068686 B2 JP3068686 B2 JP 3068686B2
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- individual
- gas
- decrease
- increase
- 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 - Lifetime
Links
Landscapes
- Safety Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
- Feeding And Controlling Fuel (AREA)
- Flow Control (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガスの事故を未然に防
ぐガス遮断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 shut-off device for preventing a gas accident from occurring.
【０００２】[0002]
【従来の技術】従来、この種のガス遮断装置は、図７に
示すように、通過ガス量に応じて流量信号ｓを出力する
流量測定手段１１、流量測定手段１１から送られる流量
信号ｓを受けて一定期間の平均流量を演算し、この平均
流量の増減を一定回数毎に演算することにより使用中の
器具の増減を推定し、増減した器具の演算流量ｑを出力
する個別器具推定手段１２と、この増減した器具の演算
流量ｑが、予め設定してある個別最大流量ｑｍａｘより
も大きい場合、個別最大流量異常信号ｅを出力する個別
最大流量比較判定部１３と、個別最大流量異常信号ｅを
受けて遮断信号を出力し、ガス通路を遮断する遮断手段
とからなっている。2. Description of the Related Art Conventionally, as shown in FIG. 7, a gas shut-off device of this kind outputs a flow rate signal s in accordance with a passing gas amount, and a flow rate signal s sent from the flow rate measuring means 11. Then, the average flow rate for a certain period is calculated, and the increase / decrease of the average flow rate is calculated at a certain number of times to estimate the increase / decrease of the appliances in use, and the individual appliance estimating means 12 outputs the calculated flow q of the increased / decreased appliance. If the calculated flow rate q of the increased or decreased appliance is larger than the preset individual maximum flow rate qmax, the individual maximum flow rate comparison / determination unit 13 that outputs the individual maximum flow rate abnormal signal e, and the individual maximum flow rate abnormal signal e And a shutoff means for outputting a shutoff signal in response to the request and shutting off the gas passage.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このようなガ
ス遮断装置は、個別最大流量ｑｍａｘより大きい場合に
のみ個別最大流量異常信号ｅを出力し、このｅ信号を受
けて遮断信号を出力しガス通路を遮断するため、個別最
大流量ｑｍａｘ流量以下のガス漏れを検出して、ガス通
路を遮断することができなかった。たとえば、６０ｍ 3
／ｈのガスエンジンを使用しているところでは、個別最
大流量ｑｍａｘは６０ｍ 3 ／ｈ以上に設定される。しか
し、カラン等の誤開放があった場合、このときの漏れ流
量は１０ｍ 3 ／ｈ程度である。そのために、この漏れ流
量が個別最大流量ｑｍａｘを越えないためにガス通路は
遮断されない。However, such a gas shut-off device is required when the individual maximum flow rate qmax is larger than the individual maximum flow rate qmax.
Only the individual maximum flow rate abnormal signal e is output, and this e signal is received.
In this case, the gas passage is shut off and the gas passage is shut off, so that a gas leak of not more than the individual maximum flow rate qmax flow rate is detected and the gas passage cannot be shut off. For example, 60 m 3
/ H gas engine is used, the individual maximum flow rate qmax is set to 60 m 3 / h or more. However, if an erroneous opening of Curran, etc., Tsu Oh, leakage flow rate at this time is approximately 10 m 3 / h. Therefore, the gas passage is not blocked because the leakage flow does not exceed the individual maximum flow qmax.
【０００４】また、ガス器具の調整が短期間のうちにお
こなわれると器具の増減の平均流量としてガス器具の調
整流量があらわれてくる。個別器具推定手段がこの平均
流量の増減を一定回数毎に演算し、使用中の個別器具を
推定するために、ガス器具の調整流量を増減した器具の
演算流量とみなす不具合いがあった。If the adjustment of the gas appliance is performed within a short period of time, the adjusted flow rate of the gas appliance appears as the average flow rate of the increase and decrease of the appliance. The individual appliance estimating means calculates the increase / decrease of the average flow rate at a certain number of times, and there is a problem in that the estimated flow rate of the gas appliance is regarded as the calculated flow rate of the appliance in order to estimate the individual appliance in use.
【０００５】そこで、本発明のガス遮断装置では、個別
流量の推定方法と個別流量異常の判定方法を改善して、
すなわち、個別最大流量ｑｍａｘよりも小さい任意の流
量でも異常を検出できるようにして、装置の安全性・信
頼性向上を目的とする。Therefore, the gas shut-off device of the present invention improves the method of estimating the individual flow rate and the method of determining the abnormality of the individual flow rate ,
That is, any flow smaller than the individual maximum flow qmax
An object of the present invention is to improve the safety and reliability of an apparatus by detecting an abnormality even in a quantity .
【０００６】[0006]
【課題を解決するための手段】そして、上記目的を達成
するために本発明の第一の手段は、通過ガス量に対応し
た流量信号を出力する流量測定手段と、前記流量信号が
増減したとき増減した個別器具の流量を演算し、この演
算流量を出力する個別流量推定手段と、あらかじめ使用
する個別器具の流量を複数登録し登録個別流量を出力す
る個別流量登録手段と、前記登録個別流量を記憶する登
録個別流量記憶手段と、前記増減した器具の演算流量が
前記登録個別流量記憶手段の登録個別流量の集合にふく
まれなければ個別異常信号を出力する異常流量判定部
と、前記個別異常信号を受信して、ガス流量の異常を警
告報知する報知手段またはガス通路を遮断する遮断手段
を備えたものである。Means for Solving the Problems In order to achieve the above object, a first means of the present invention comprises a flow rate measuring means for outputting a flow rate signal corresponding to a passing gas amount, and a flow rate measuring means for detecting an increase or decrease of the flow rate signal. Calculate the increased or decreased flow rate of the individual appliances, individual flow rate estimation means for outputting the calculated flow rate, individual flow rate registration means for registering a plurality of individual appliance flow rates to be used in advance and outputting a registered individual flow rate, and A registered individual flow rate storage unit for storing, an abnormal flow rate determination unit that outputs an individual abnormal signal unless the calculated flow rate of the increased or decreased appliance is included in a set of registered individual flow rates of the registered individual flow rate storage unit, and the individual abnormal signal. And an alarming means for alerting of an abnormal gas flow rate or a shutoff means for shutting off the gas passage.
【０００７】また、本発明の第２の手段は、前記個別流
量推定手段を、前記流量信号が所定期間安定していると
きの増減により使用中の個別器具の増減を推定し、増減
した器具の演算流量を出力するようにしたものである。The second means of the present invention is characterized in that the individual flow rate estimating means estimates the increase or decrease in the number of individual appliances in use based on the increase or decrease when the flow rate signal is stable for a predetermined period, The calculation flow rate is output.
【０００８】[0008]
【作用】そして、上記第１の手段により本発明のガス遮
断装置は、個別最大流量以下のガス漏れで、登録個別流
量記憶手段に登録している以外のガス漏れ、たとえばカ
ランの誤開放が発生した場合ガス通路を遮断し、ガス事
故を未然に防ぐことができる。According to the first means, the gas shut-off device of the present invention causes gas leaks other than those registered in the registered individual flow rate storage means, for example, erroneous opening of the callan, when the gas leaks below the individual maximum flow rate. In this case, the gas passage can be shut off to prevent a gas accident.
【０００９】また第２の手段により本発明のガス遮断装
置は、安定している流量の増減により個別流量を推定す
るために、ガス器具の調整あるいは複数器具の同時使用
等による変化流量を個別流量として推定する事がない。
したがって、個別器具推定の信頼性を向上することがで
きる。According to the second means, the gas shut-off device of the present invention can estimate the individual flow rate by increasing or decreasing the stable flow rate. There is no estimation.
Therefore, the reliability of individual instrument estimation can be improved.
【００１０】また、増加流量だけを対象にすることによ
り、ガス器具の絞り等の一定でない（絞り方により流量
がかわる）流量を個別流量として推定する事がない。し
たがって、個別器具の信頼性を向上することができる。[0010] Further, since only the increased flow rate is targeted, a non-constant flow rate (a flow rate is changed depending on the throttle method) such as a throttle of a gas appliance is not estimated as an individual flow rate. Therefore, the reliability of the individual device can be improved.
【００１１】[0011]
【実施例】以下、本発明のガス遮断装置の実施例を添付
図面に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the gas shut-off device of the present invention will be described below with reference to the accompanying drawings.
【００１２】第１実施例のガス遮断装置について、図１
および図２に基づいて説明する。図１において、１はガ
スメーターに取り付けられた流量測定手段としての流量
センサーである。２は前記流量センサー１の流量信号を
一定計測期間（３０秒）の平均流量として演算し、この
平均流量の増減をもとに使用中の個別流量の増減を推定
し、増減した器具の演算流量を出力する個別流量推定手
段である。この個別流量推定手段２は、平均流量が増加
した場合はその増加分のガス器具が使用されたと判断
し、平均流量が減少した場合はその減少分のガス器具を
止めたと判断し使用中の個別器具を推定する。３はその
家庭で使用する個別器具の流量（Ｑｉ）を予めインプッ
ト（設定）する個別流量登録手段である。４は個別流量
登録手段３の個別器具の流量（Ｑｉ）を順次Ｑ１，Ｑ
２，Ｑ３，・・・，Ｑｎと記憶する登録個別流量記憶手
段である。５は個別流量推定手段２から出力される推定
個別流量Ｑが登録個別流量記憶手段の｛Ｑ１，Ｑ２，Ｑ
３，・・・，Ｑｎ｝に含まれなければ、個別異常信号Ｅ
を出力する異常流量判定部、６は個別異常信号Ｅを受け
て警告報知する報知手段としてのＬＥＤとガス通路を遮
断する遮断手段としての遮断弁である。FIG. 1 shows a gas shut-off device according to a first embodiment.
A description will be given based on FIG. In FIG. 1, reference numeral 1 denotes a flow sensor as a flow measuring means attached to a gas meter. 2 calculates the flow rate signal of the flow rate sensor 1 as an average flow rate for a fixed measurement period (30 seconds), estimates the increase or decrease of the individual flow rate in use based on the increase or decrease of the average flow rate, and calculates the calculated flow rate of the increased or decreased appliance. Is an individual flow rate estimation unit that outputs When the average flow rate increases, the individual flow rate estimation means 2 determines that the gas appliance corresponding to the increase has been used, and when the average flow rate decreases, determines that the gas appliance corresponding to the decrease has been stopped, and Estimate equipment. Reference numeral 3 denotes individual flow rate registration means for inputting (setting) the flow rate (Qi) of the individual appliance used in the home in advance. 4 indicates the flow rates (Qi) of the individual instruments of the individual flow rate registration means 3 in order of Q1, Q
2, Q3,..., Qn. Reference numeral 5 denotes an estimated individual flow rate Q output from the individual flow rate estimation means 2 stored in the registered individual flow rate storage means {Q1, Q2, Q
, Qn}, the individual abnormal signal E
Is an abnormal flow rate determination unit that outputs an alarm signal, and 6 is an LED as notification means for receiving an individual abnormal signal E and issuing a warning, and a shutoff valve as shutoff means for shutting off the gas passage.
【００１３】図２および図３は、典型的な流量パターン
を示す。Ｃ１，Ｃ２，Ｃ３，〜Ｃ１３は個別器具推定手
段２の計測期間を表し、ＫＱ１，ＫＱ２，ＫＱ３，〜Ｋ
Ｑ１３は、各計測期間の平均流量を表す。また、グラフ
の下の四角の横の長さは推定個別流量の出現した時間の
長さを表わし、四角の縦の長さは推定個別流量の平均流
量の値を表わしている。図２に示すように第１実施例の
個別流量推定手段２は流量に変化があった計測期間の前
後の流量の増加分、減少分により推定個別流量を出力す
る。そして流量に変化があった計測期間前後の増加分、
減少分により推定個別流量を出力するために、ガス器具
の調整（立ち上がり）あるいは同時使用時の流量を個別
流量として判断している。ＫＱ１で変化があったので器
具Ａとして（ＫＱ２−０）の流量を個別器具として推定
し、ＫＱ３で変化があったので器具Ｂとして（ＫＱ４−
ＫＱ２）の流量を個別器具として推定し、ＫＱ５で変化
があったので器具Ｃとして（ＫＱ６−ＫＱ４）の流量を
個別器具として推定している。 FIGS. 2 and 3 show typical flow patterns. C1, C2, C3 to C13 represent measurement periods of the individual appliance estimating means 2, and KQ1, KQ2, KQ3 to K
Q13 represents the average flow rate in each measurement period. The horizontal length of the square below the graph represents the length of time during which the estimated individual flow rate appears, and the vertical length of the square represents the average flow rate of the estimated individual flow rate. As shown in FIG. 2, the individual flow rate estimating means 2 of the first embodiment outputs an estimated individual flow rate according to an increase or decrease in the flow rate before and after the measurement period in which the flow rate has changed. And the increase before and after the measurement period when the flow rate changed ,
In order to output the estimated individual flow rate based on the decrease, the flow rate at the time of adjusting (starting up) or simultaneously using the gas appliances is determined as the individual flow rate. Because there was a change in KQ1,
Estimate the flow rate of (KQ2-0) as an individual appliance as appliance A
However, since there was a change in KQ3, as instrument B (KQ4-
Estimate the flow rate of KQ2) as individual equipment and change with KQ5
There was a flow rate of (KQ6-KQ4)
Estimated as individual appliances.
【００１４】第２実施例のガス遮断装置について、図３
に基づいて説明する。第１実施例の個別流量推定手段２
を図３に示すように、安定流量の増加分、減少分により
推定個別流量を出力するようにする。この場合の安定流
量は連続する計測期間の平均流量が所定範囲（３％）以
内であるという条件である。したがって、ガス器具の調
整（立ち上がり）あるいは同時使用時の流量が変化して
いるときの流量を個別流量として判断しない。この流量
パターンでの推定個別流量は、ＫＱ７，ＫＱ１０，ＫＱ
１３となる。FIG. 3 shows a gas shut-off device according to a second embodiment.
It will be described based on. Individual flow rate estimating means 2 of the first embodiment
As shown in FIG. 3, the estimated individual flow rate is output based on the increase and decrease of the stable flow rate. The stable flow rate in this case is a condition that the average flow rate during a continuous measurement period is within a predetermined range (3%). Therefore, the flow rate when the flow rate at the time of adjusting (starting up) or simultaneously using the gas appliance is changing is not determined as the individual flow rate. The estimated individual flow rates in this flow pattern are KQ7, KQ10, KQ
It becomes 13.
【００１５】第３実施例のガス遮断装置について、図
１，図３に基づいて説明する。図１の異常流量判定部５
は、増加したときの推定個別流量のみ対象とする。この
ために、図３において、推定個別流量ＫＱ７のみが異常
流量判定部の個別異常信号出力の対象となる。したがっ
て、器具を絞ったときの一定しない流量により、遮断す
ることが少なくなる。A gas shut-off device according to a third embodiment will be described with reference to FIGS. Abnormal flow rate determination unit 5 in FIG.
Covers only the estimated individual flow rate at the time of increase. For this reason, in FIG. 3, only the estimated individual flow rate KQ7 is a target of the individual abnormal signal output of the abnormal flow rate determination unit. Therefore, the interruption is reduced by the non-constant flow rate when the instrument is squeezed.
【００１６】上述した手段は、マイクロコンピュータな
どのプログラム動作による演算や判定機能をもちいれば
容易に実現できるものである。The above-described means can be easily realized by using a calculation or judgment function by a program operation of a microcomputer or the like.
【００１７】図４に上記第１実施例のプログラムフロー
を示す。今、処理開始から処理終了までのフローはイン
タバールタイマ等により周期的に処理されるものとす
る。処理２１（各ブロック左上の数字）で流量測定手段
１の流量信号をもとに平均流量を計算する。処理２２で
この平均流量と前前回の計測の平均流量との変化流量を
もとめる。処理２３で、増加の変化か、減少の変化かを
判断する。増加の場合、処理２４で増加処理をし、減少
の場合、処理２５で減少処理を行う。処理２６で、増加
減少処理の結果あらたに追加された推定個別流量が、登
録個別流量記憶手段に含まれるかどうかの判断をする。
含まれなければ処理２７で、報知手段または遮断手段６
を動作させる。含まれれば処理を終了する。FIG. 4 shows a program flow of the first embodiment. Now, it is assumed that the flow from the processing start to the processing end is periodically processed by an interval timer or the like. Process 21 the flow rate signal at the flow measuring unit 1 (numbers on each block left) to calculate the average flow rate based. In process 22, the change flow rate between the average flow rate and the average flow rate of the previous and previous measurements is obtained. In process 23, it is determined whether the change is an increase or a decrease. In the case of the increase, the increase processing is performed in the processing 24, and in the case of the decrease, the decrease processing is performed in the processing 25. In the process 26, it is determined whether or not the estimated individual flow rate newly added as a result of the increase / decrease process is included in the registered individual flow rate storage means.
If it is not included, in the process 27, the notification unit or the blocking unit 6
To work. If it is included, the process ends.
【００１８】図５に上記第２実施例のプログラムフロー
を示す。今、処理開始から処理終了までのフローはイン
タバールタイマ等により周期的に処理されるものとす
る。処理３１（各ブロック左上の数字）で流量測定手段
１の流量信号をもとに平均流量を計算する。処理３２
で、前回の計測の変化が３％以内かどうか判断する。３
％以内でなければ処理は終了し、３％以内であれば安定
流量として処理３３でこの平均流量と前回の安定流量と
の変化流量をもとめる。処理３４で、増加の変化か減少
の変化かを判断する。増加の場合、処理３５で増加処理
をし、減少の場合、処理３６で減少処理を行う。処理３
７で、増加減少処理の結果あらたに追加された推定個別
流量が、登録個別流量記憶手段に含まれるかどうかの判
断をする。含まれなければ処理３８で、報知手段または
遮断手段６を動作させる。含まれれば処理を終了する。FIG. 5 shows a program flow of the second embodiment. Now, it is assumed that the flow from the processing start to the processing end is periodically processed by an interval timer or the like. Process 31 the flow rate signal at the flow measuring unit 1 (numbers on each block left) to calculate the average flow rate based. Process 32
Then, it is determined whether or not the change in the previous measurement is within 3%. 3
If it is not within 3%, the process is terminated, and if it is within 3%, a stable flow rate is determined as a stable flow rate in step 33, and a change flow rate between the average flow rate and the previous stable flow rate is obtained. In process 34, it is determined whether the change is an increase or a decrease. In the case of increase, the increase processing is performed in step 35, and in the case of decrease, the decrease processing is performed in step 36. Processing 3
At 7, it is determined whether or not the estimated individual flow rate newly added as a result of the increase / decrease process is included in the registered individual flow rate storage means. If it is not included, in the process 38, the notifying means or the blocking means 6 is operated. If it is included, the process ends.
【００１９】図６に上記第３実施例のプログラムフロー
を示す。今、処理開始から処理終了までのフローはイン
タバールタイマ等により周期的に処理されるものとす
る。処理４１（各ブロック右上の数字）で流量測定手段
１の流量信号をもとに平均流量を計算する。処理４２
で、前回の計測の変化が３％以内かどうか判断する。３
％以内でなければ処理は終了し、３％以内であれば安定
流量として処理４３でこの平均流量と前回の安定流量と
の変化流量をもとめる処理４４で、増加の変化か減少の
変化かを判断する。増加の場合、処理４５で増加処理を
し、減少の場合、処理４６で減少処理を行う。処理４７
で、追加された個別流量が増加処理の結果か減少処理の
結果か判断する。減少処理により追加された場合は、処
理を終了する。増加処理により追加された場合は、処理
４８で増加処理の結果あらたに追加された推定個別流量
が、登録個別流量記憶手段に含まれるかどうかの判断を
する。含まれなければ処理４９で、報知手段または遮断
手段６を動作させる。含まれれば処理を終了する。FIG. 6 shows a program flow of the third embodiment. Now, it is assumed that the flow from the processing start to the processing end is periodically processed by an interval timer or the like. In process 41 (the number at the upper right of each block), the average flow rate is calculated based on the flow rate signal of the flow rate measuring means 1. Process 42
Then, it is determined whether or not the change in the previous measurement is within 3%. 3
If it is not within 3%, the process is terminated, and if it is within 3%, the flow rate is determined as a stable flow rate in a process 43 in a process 43 to determine a change flow rate between the average flow rate and the previous stable flow rate. I do. In the case of increase, the increase processing is performed in step 45, and in the case of decrease, the decrease processing is performed in step 46. Process 47
It is determined whether the added individual flow rate is the result of the increase process or the result of the decrease process. If added by the reduction process, the process ends. If added by the increase process, it is determined whether the estimated individual flow rate newly added as a result of the increase process in process 48 is included in the registered individual flow rate storage means. If it is not included, in a process 49, the notifying unit or the blocking unit 6 is operated. If it is included, the process ends.
【００２０】[0020]
【発明の効果】以上の説明から明かなように、本発明の
ガス遮断装置は、それぞれの家庭で使用する個別器具を
あらかじめ記憶し、個別器具の推定を精度よくし、個別
器具以外の流量によるガス漏れによる事故を未然に防ぐ
ことができる。As is apparent from the above description, the gas shut-off device of the present invention memorizes in advance the individual appliances used in each home, makes the estimation of the individual appliances accurate, and uses the flow rate other than the individual appliances. Accidents due to gas leaks can be prevented.
【００２１】また、本発明の第２の技術手段は、個別器
具を精度よく推定できるために、従来例にも適用するこ
とにより、信頼性を向上することができる。In addition, since the second technical means of the present invention can accurately estimate an individual appliance, it can be applied to a conventional example to improve reliability.
【図１】本発明の第１実施例のガス遮断装置の機能ブロ
ック図FIG. 1 is a functional block diagram of a gas shutoff device according to a first embodiment of the present invention.
【図２】本発明の第１実施例における流量パターンの個
別器具推定特性図FIG. 2 is an individual instrument estimation characteristic diagram of a flow pattern in the first embodiment of the present invention.
【図３】本発明の第２実施例における流量パターンの個
別器具推定特性図FIG. 3 is an individual instrument estimation characteristic diagram of a flow pattern in the second embodiment of the present invention.
【図４】本発明の第１実施例におけるプログラムフロー
図FIG. 4 is a program flow diagram in the first embodiment of the present invention.
【図５】本発明の第２実施例におけるプログラムフロー
図FIG. 5 is a program flow diagram according to a second embodiment of the present invention.
【図６】本発明の第３実施例におけるプログラムフロー
図FIG. 6 is a program flow diagram according to a third embodiment of the present invention.
【図７】従来の機能ブロック図FIG. 7 is a conventional functional block diagram.
１ 流量測定手段 ２ 個別流量推定手段 ３ 個別流量登録手段 ４ 登録個別流量記憶手段 ５ 異常流量判定部 ６ 報知手段（または遮断手段） DESCRIPTION OF SYMBOLS 1 Flow rate measuring means 2 Individual flow rate estimating means 3 Individual flow rate registering means 4 Registered individual flow rate storing means 5 Abnormal flow rate judging part 6 Notification means (or shut-off means)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 白沢 忠徳 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 大谷 卓久 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３−237987（ＪＰ，Ａ) 特開 平２−144608（ＪＰ，Ａ) 特開 平２−171808（ＪＰ，Ａ) 特開 平５−20568（ＪＰ，Ａ) 特公 昭63−59048（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) G05D 7/06 G01F 3/22 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadoku Shirasawa 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Takuhisa Otani 1006 Kadoma Kadoma Kadoma, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP-A-3-237987 (JP, A) JP-A-2-144608 (JP, A) JP-A-2-171808 (JP, A) JP-A-5-20568 (JP, A) JP-B-63-59048 (JP, B2) (58) Field surveyed (Int. Cl. 7 , DB name) G05D 7/06 G01F 3/22
Claims (2)
流量測定手段と、前記流量信号が増減したときに増減し
た個別器具の流量を演算し、この演算流量を出力する個
別流量推定手段と、あらかじめ使用する個別器具の流量
を複数登録し、登録個別流量を出力する個別流量登録手
段と、前記登録個別流量を記憶する登録個別流量記憶手
段と、前記増加した演算流量のみ、または増減した器具
の演算流量が前記登録個別流量記憶手段の登録個別流量
の集合にふくまれなければ個別異常信号を出力する異常
流量判定部と、前記個別異常信号を受信して、ガス流量
の異常を警告報知する報知手段またはガス通路を遮断す
る遮断手段を備えたガス遮断装置。1. A flow rate measuring means for outputting a flow rate signal corresponding to a passing gas amount, and an individual flow rate estimating means for calculating a flow rate of an individual instrument which has increased or decreased when the flow rate signal has increased or decreased, and outputting the calculated flow rate. A plurality of individual instrument flow rates to be used in advance, individual flow rate registration means for outputting a registered individual flow rate, a registered individual flow rate storage means for storing the registered individual flow rate, and the increased or calculated flow rate only, or an increased or decreased instrument Calculated flow rate is the registered individual flow rate of the registered individual flow rate storage means.
An abnormal flow rate determination unit that outputs an individual abnormal signal if not included in the set of the gas flow, and a gas unit that receives the individual abnormal signal and that notifies the gas flow rate abnormality by a warning unit or a blocking unit that blocks a gas passage. Blocking device.
安定しているときの増減により使用中の個別器具の増減
を推定し、増減した器具の演算流量を出力するようにし
た請求項１記載のガス遮断装置。2. An apparatus according to claim 1, wherein said individual flow rate estimating means estimates an increase or decrease of the individual appliances in use based on an increase or decrease when the flow signal is stable for a predetermined period, and outputs a calculated flow rate of the increased or decreased appliance. The gas shut-off device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3294102A JP3068686B2 (en) | 1991-11-11 | 1991-11-11 | Gas shut-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3294102A JP3068686B2 (en) | 1991-11-11 | 1991-11-11 | Gas shut-off device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05134762A JPH05134762A (en) | 1993-06-01 |
| JP3068686B2 true JP3068686B2 (en) | 2000-07-24 |
Family
ID=17803315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3294102A Expired - Lifetime JP3068686B2 (en) | 1991-11-11 | 1991-11-11 | Gas shut-off device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3068686B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002062176A (en) * | 2000-08-21 | 2002-02-28 | Tokyo Gas Co Ltd | Gas meter and method for deciding abnormality regarding gas supply |
| JP4558168B2 (en) * | 2000-09-28 | 2010-10-06 | 東京瓦斯株式会社 | Gas metering monitoring system |
| JP4544277B2 (en) | 2007-07-12 | 2010-09-15 | パナソニック株式会社 | Gas shut-off device |
-
1991
- 1991-11-11 JP JP3294102A patent/JP3068686B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05134762A (en) | 1993-06-01 |
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