JP2785458B2 - Gas supply equipment abnormality detector - Google Patents
Gas supply equipment abnormality detectorInfo
- Publication number
- JP2785458B2 JP2785458B2 JP2191185A JP19118590A JP2785458B2 JP 2785458 B2 JP2785458 B2 JP 2785458B2 JP 2191185 A JP2191185 A JP 2191185A JP 19118590 A JP19118590 A JP 19118590A JP 2785458 B2 JP2785458 B2 JP 2785458B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- gas
- gas supply
- supply equipment
- 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)
- Arrangements For Transmission Of Measured Signals (AREA)
- Control Of Combustion (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、LPガス供給設備である圧力調整器の異常を
検出するガス供給設備異常検出装置に関するものであ
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas supply equipment abnormality detection device that detects an abnormality of a pressure regulator as an LP gas supply equipment.
従来の技術 近年、ガス漏れによる爆発事故や、ガス器具の消し忘
れによる火災事故等を防ぐために、ガスメータの中にガ
ス漏れやガス器具の使用時間を監視し、長時間にわたっ
てガス器具が使われ続けた場合ガス器具の消し忘れであ
ると判断し、ガスの供給を遮断するガス遮断装置が組み
こまれるようになってきており、ガスメータから下流側
については安全が確保されるようになってきている。一
方、ガスメータの上流側、すなわちLPガスボンベからガ
スメータまでの安全管理については従来２年に１度人が
現場に出向いて安全チェックを行っていた。In recent years, in order to prevent explosion accidents due to gas leaks and fire accidents due to forgetting to turn off gas appliances, etc., gas meters are monitored for gas leaks and the usage time of gas appliances, and gas appliances have been used for a long time. In the event that the gas appliance is forgotten to be turned off, a gas shutoff device that shuts off the gas supply is being incorporated, and safety is being secured downstream from the gas meter. . On the other hand, regarding the safety management on the upstream side of the gas meter, that is, from the LP gas cylinder to the gas meter, conventionally, once every two years, a person goes to the site and performs a safety check.
このような従来の安全管理についてその概要を第２図
に従って説明する。An outline of such conventional safety management will be described with reference to FIG.
第２図は従来のガス供給設備における安全チェック手
段のブロック図である。第２図において、１はLPガスボ
ンベ、２はボンベの元栓、３は圧力調整器、４はガスメ
ータ、５はガス器具、６は圧力計、７はペンレコーダで
ある。FIG. 2 is a block diagram of safety check means in a conventional gas supply facility. In FIG. 2, 1 is an LP gas cylinder, 2 is a main stopper of the cylinder, 3 is a pressure regulator, 4 is a gas meter, 5 is a gas instrument, 6 is a pressure gauge, and 7 is a pen recorder.
以上のように構成された従来のガス供給設備における
安全チェック手段について、第２図を参照しながらその
動作について説明する。２年１度人が現場に行き、圧力
調整器３とガスメータ４の間のガス配管の途中に圧力計
６を接続し、ペンレコーダ７によりガス配管内部のガス
圧力を測定する。圧力調整器３の圧力調整能力について
チェックされる。ボンベ元栓２およびガスメータ４内の
ガス遮断弁を開状態にし、ガス器具５を通常の使用状態
として圧力計６によりガス圧力を測定する。測定された
ガス圧力が230〜330mmH2Oの間にあれば正常であり、そ
れ以外であれば圧力調整器３の故障であると判断さる。The operation of the safety check means in the conventional gas supply equipment configured as described above will be described with reference to FIG. Once every two years, a person goes to the site, connects the pressure gauge 6 in the middle of the gas pipe between the pressure regulator 3 and the gas meter 4, and measures the gas pressure inside the gas pipe by the pen recorder 7. The pressure adjusting capability of the pressure adjuster 3 is checked. The gas main valve 2 is opened, the gas shutoff valve in the gas meter 4 is opened, and the gas pressure is measured by the pressure gauge 6 while the gas appliance 5 is in a normal use state. Measured gas pressure is normal if between 230~330mmH 2 O, monkey determined that the failure of the pressure regulator 3 and otherwise.
発明が解決しようとする課題 しかしながら上記のような構成では、いちいち人が現
場に行きチェック機器を設置して安全チェックを行う必
要があり、手間と時間がかかるという課題を有してい
た。Problems to be Solved by the Invention However, in the above-described configuration, it is necessary for each person to go to the site and install a check device to perform a safety check, which has a problem that it takes time and effort.
本発明は上記課題に鑑み、自動的に圧力調整器の異常
をチェックすることのできるガス供給設備異常検出装置
を提供するものである。The present invention has been made in view of the above problems, and provides a gas supply facility abnormality detection device that can automatically check for an abnormality in a pressure regulator.
課題を解決するための手段 上記課題を解決するために、本発明のガス供給設備異
常検出装置はガス供給設備を構成する圧力調整器の上流
側のガス供給設備内のガス圧を検出する圧力検出手段
と、前記圧力調整器の下流側のガス供給設備内のガス圧
を供給する圧力検出手段と、前記２つの圧力検出手段か
らの信号を入力とし、ガス供給設備に異常があるかどう
かを判定する判定手段と、前記判定手段からの信号によ
り動作する出力手段という構成を備えたものである。Means for Solving the Problems In order to solve the above-mentioned problems, a gas supply equipment abnormality detection device of the present invention detects a gas pressure in a gas supply equipment upstream of a pressure regulator constituting the gas supply equipment. Means, pressure detection means for supplying gas pressure in the gas supply equipment downstream of the pressure regulator, and a signal from the two pressure detection means as inputs, to determine whether or not the gas supply equipment is abnormal. And an output unit that operates based on a signal from the determination unit.
作用 本発明は上記した構成によって自動的に圧力調整器よ
り上流側と下流側のそれぞれのガス供給設備内のガス圧
を測定し、上流側のガス圧が正常であるにもかかわら
ず、下流側のガス圧が低下した場合には圧力調整器の異
常であると判断でき、人手による安全チェックを省略で
きることとなる。Function The present invention automatically measures the gas pressure in each of the gas supply facilities on the upstream side and the downstream side of the pressure regulator by the above-described configuration. If the gas pressure decreases, it can be determined that the pressure regulator is abnormal, and a manual safety check can be omitted.
実施例 以下本発明の一実施例のガス供給設備異常検出装置に
ついて、図面を参照しながら説明する。Embodiment Hereinafter, an apparatus for detecting abnormality in gas supply equipment according to an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の実施例におけるガス供給設備異常検
出装置のブロック図である。第１図において、１はLPガ
スボンベ、２はボンベの元栓、３は圧力調整器、４はガ
スメータ、５はガス器具、８は圧力調整器３の上流側の
ガス圧を検出する圧力検出手段である圧力センサ、９は
圧力調整器３の下流側のガス圧を検出する圧力検出手段
である圧力センサ、10は判定手段、11は出力手段、12は
コンパレータ、13はコンパレータ、14はゲート回路、15
はタイマ回路である。なお従来例の第２図と同じ機能を
示すブロックは同一の番号を付与している。FIG. 1 is a block diagram of a gas supply equipment abnormality detecting device according to an embodiment of the present invention. In FIG. 1, 1 is an LP gas cylinder, 2 is a main stopper of the cylinder, 3 is a pressure regulator, 4 is a gas meter, 5 is a gas appliance, and 8 is pressure detecting means for detecting gas pressure on the upstream side of the pressure regulator 3. A certain pressure sensor, 9 is a pressure sensor as pressure detecting means for detecting gas pressure on the downstream side of the pressure regulator 3, 10 is determining means, 11 is output means, 12 is a comparator, 13 is a comparator, 14 is a gate circuit, Fifteen
Is a timer circuit. Blocks having the same functions as those in FIG. 2 of the conventional example are given the same numbers.
以上のように構成された本発明の一実施例であるガス
供給設備異常検出装置について以下その動作を説明す
る。The operation of the gas supply equipment abnormality detection device according to one embodiment of the present invention configured as described above will be described below.
ボンベ交換時には圧力調整器３から下流側の圧力が下
がることが考えられる。従って、下流側の圧力情報だけ
では圧力調整器３の故障かボンベ交換等による圧力低下
か判断がつかない。そこで第１図に示す本発明の実施例
では上流側に設けた圧力センサ８の情報と下流側に設け
た圧力センサ９の情報と２つの情報を利用している。コ
ンパレータ12は圧力センサ９の圧力が230mmH2O以下にな
った時に出力するように設定されている。コンパレータ
13は圧力センサ８の出力があるレベル（例えば下流側の
圧力の上限である330mmH2O）以上になった時出力するよ
うに設定されている。ゲート回路14はコンパレータ13か
らの信号がある時のみコンパレータ12の出力をタイマ回
路15に伝える。従って、圧力センサ８にあるレベル以上
の信号がある時のみ圧力センサ９の信号がタイマ回路15
に伝わり、もし圧力が230mmH2O以下であればタイマ回路
15が動作する。タイマ回路15では雑音を除去するために
ある時間以上信号があるときだけ次段の出力手段に信号
を出力するように構成されている。異常を知らされた出
力手段11ではLEDを点灯、あるいは点滅させて異常を人
に知らせたり、電話回線等を利用して警報を管理センタ
に報知する。あるいはガス供給設備内に設けられたガス
遮断弁を動作させ、ガスの供給をストップさせる。It is conceivable that the pressure on the downstream side from the pressure regulator 3 drops during the cylinder replacement. Therefore, it is not possible to judge whether the pressure regulator 3 has failed or the pressure has dropped due to cylinder replacement or the like, based only on the pressure information on the downstream side. Therefore, in the embodiment of the present invention shown in FIG. 1, two pieces of information, that is, information of the pressure sensor 8 provided on the upstream side and information of the pressure sensor 9 provided on the downstream side are used. The comparator 12 is set so as to output when the pressure of the pressure sensor 9 becomes 230 mmH 2 O or less. comparator
Reference numeral 13 is set so as to output when the output of the pressure sensor 8 exceeds a certain level (for example, 330 mmH 2 O which is the upper limit of the pressure on the downstream side). The gate circuit 14 transmits the output of the comparator 12 to the timer circuit 15 only when there is a signal from the comparator 13. Therefore, only when the pressure sensor 8 has a signal higher than a certain level, the signal of the pressure sensor 9 is output to the timer circuit 15.
If the pressure is 230mmH 2 O or less, the timer circuit
15 works. The timer circuit 15 is configured to output a signal to the output means of the next stage only when there is a signal for a certain time or more in order to remove noise. The output means 11 which has been notified of the abnormality turns on or blinks an LED to notify the person of the abnormality, or notifies the management center of an alarm using a telephone line or the like. Alternatively, a gas shut-off valve provided in the gas supply facility is operated to stop the gas supply.
以上のように本実施例によれば、ガス供給設備を構成
する圧力調整器の上流側のガス供給設備内のガス圧を検
出する圧力検出手段と、前記圧力調整器の下流側のガス
供給設備内のガス圧を検出する圧力検出手段と、前記２
つの圧力検出手段からの信号を入力とし、ガス供給設備
に異常があるかどうかを判定する判定手段と、前記判定
手段からの信号により動作する出力手段という構成によ
りボンベ交換時等圧力調整器３の上流側のガス圧が低下
している時には動作せず、通常の使用状態における圧力
調整器の異常による下流側のガス圧低下の時には異常を
検出し、人に報知することができることとなる。As described above, according to the present embodiment, the pressure detecting means for detecting the gas pressure in the gas supply facility on the upstream side of the pressure regulator constituting the gas supply facility, and the gas supply facility on the downstream side of the pressure regulator Pressure detecting means for detecting the gas pressure in the chamber;
The pressure adjuster 3 for cylinder replacement and the like is configured by a determination means for receiving signals from the two pressure detection means and determining whether there is an abnormality in the gas supply equipment, and an output means operated by a signal from the determination means. When the gas pressure on the upstream side is low, it does not operate. When the gas pressure on the downstream side is low due to the abnormality of the pressure regulator in a normal use state, the abnormality can be detected and notified to a person.
なお、本発明のガス供給設備異常検出装置は圧力調整
器３の中に内蔵してもよい。また供給設備異常検出装置
全部を別ユニットとしてもよいし、一部例えば圧力セン
サ８や圧力センサ９の片方あるいは両方を圧力調整器３
に内蔵させ、他の部分を別の場所に設けてもよい。また
圧力センサ９は圧力調整器の下流側であればどこでもよ
く、例えばガスメータ４とガス器具５の間であってもよ
いし、ガスメータ４に内蔵してもよい。また判定手段10
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。Note that the gas supply facility abnormality detection device of the present invention may be built in the pressure regulator 3. In addition, the entire supply equipment abnormality detection device may be a separate unit, or a part of the pressure sensor 8 or the pressure sensor 9 may be replaced with the pressure regulator 3.
And another part may be provided in another place. The pressure sensor 9 may be anywhere on the downstream side of the pressure regulator, for example, may be between the gas meter 4 and the gas appliance 5 or may be built in the gas meter 4. Judgment means 10
May be realized by software logic by a microcomputer.
発明の効果 以上のように本発明は、ガス供給設備を構成する圧力
調整器の上流側のガス供給設備内のガス圧を検出する圧
力検出手段と、前記圧力調整器の下流側のガス供給設備
内のガス圧を検出する圧力検出手段と、前記２つの圧力
検出手段からの信号を入力とし、ガス供給設備に異常が
あるかどうかを判定する判定手段と、前記判定手段から
の信号により動作する出力手段を設けることにより、圧
力調整器の異常による供給圧力の低下を誤作動なく検出
し、人に報知することができるガス供給設備異常検出装
置を提供することができる。Effect of the Invention As described above, the present invention provides a pressure detecting means for detecting a gas pressure in a gas supply facility upstream of a pressure regulator constituting a gas supply facility, and a gas supply facility downstream of the pressure regulator. Pressure detecting means for detecting the gas pressure in the chamber, determining means for receiving signals from the two pressure detecting means as inputs, and determining whether there is an abnormality in the gas supply equipment, and operating by a signal from the determining means. By providing the output means, it is possible to provide a gas supply equipment abnormality detection device that can detect a decrease in supply pressure due to an abnormality in the pressure regulator without malfunction and notify a human.
第１図は本発明の一実施例におけるガス供給設備異常検
出装置のブロック図、第２図は従来のブロック図であ
る。 １……LPガスボンベ、２……ボンベの元栓、３……圧力
調整器、４……ガスメータ、５……ガス器具、８……圧
力センサ、９……圧力センサ、10……判定手段、11……
出力手段、15……タイマ回路。FIG. 1 is a block diagram of an apparatus for detecting abnormality of a gas supply facility according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional apparatus. DESCRIPTION OF SYMBOLS 1 ... LP gas cylinder, 2 ... Main stopper of cylinder, 3 ... Pressure regulator, 4 ... Gas meter, 5 ... Gas appliance, 8 ... Pressure sensor, 9 ... Pressure sensor, 10 ... Determination means, 11 ......
Output means, 15: Timer circuit.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 嶋田 拓生 大阪府門真市大字門制1006番地 松下電 器産業株式会社内 (72)発明者 堀井 博 大阪府門真市大字門制1006番地 松下電 器産業株式会社内 (72)発明者 下谷 毅夫 大阪府門真市大字門制1006番地 松下電 器産業株式会社内 (72)発明者 棚橋 隆 大阪府門真市大字門制1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭63−163100（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) F23N 5/20 - 5/24 G01F 3/22 G08C 19/00 A62C 2/04──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takuo Shimada 1006 Ojimon, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (72) Hiroshi Horii 1006 Ojimon, Kadoma-shi, Osaka Matsushita Electric Industrial Incorporated (72) Inventor Takeo Shimotani 1006 Ojimon, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Takashi Tanahashi 1006 Ojimon, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP-A-63-163100 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) F23N 5/20-5/24 G01F 3/22 G08C 19/00 A62C 2 / 04
Claims (2)
側のガス供給設備内のガス圧を検出する圧力検出手段
と、前記圧力調整器の下流側のガス供給設備内のガス圧
を検出する圧力検出手段と前記２つの圧力検出手段から
の信号を入力とし、ガス供給設備に異常があるかどうか
を判定する判定手段と、前記判定手段からの信号により
動作する出力手段とで構成されたガス供給設備異常検出
装置。1. A pressure detecting means for detecting a gas pressure in a gas supply facility upstream of a pressure regulator constituting a gas supply facility, and a gas pressure in a gas supply facility downstream of the pressure regulator. A pressure detecting means for inputting signals from the two pressure detecting means, a determining means for determining whether there is an abnormality in the gas supply equipment, and an output means operating based on the signal from the determining means. Gas supply equipment abnormality detector.
設備内のガス圧を検出する圧力検出手段からの信号があ
るレベル以上であり、かつ圧力調整器の下流側のガス供
給設備内のガス圧を検出する圧力検出手段からの信号が
あるレベル以下の時異常であると判定するように構成さ
れている請求項（１）記載のガス供給設備異常検出装
置。2. A method according to claim 1, wherein the signal from the pressure detecting means for detecting the gas pressure in the gas supply equipment on the upstream side of the pressure regulator is higher than a certain level, and the signal in the gas supply equipment on the downstream side of the pressure regulator is determined. The gas supply equipment abnormality detection device according to claim 1, wherein the abnormality is detected when the signal from the pressure detection means for detecting the gas pressure is below a certain level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191185A JP2785458B2 (en) | 1990-07-18 | 1990-07-18 | Gas supply equipment abnormality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191185A JP2785458B2 (en) | 1990-07-18 | 1990-07-18 | Gas supply equipment abnormality detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0476310A JPH0476310A (en) | 1992-03-11 |
| JP2785458B2 true JP2785458B2 (en) | 1998-08-13 |
Family
ID=16270318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191185A Expired - Fee Related JP2785458B2 (en) | 1990-07-18 | 1990-07-18 | Gas supply equipment abnormality detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2785458B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017156047A (en) * | 2016-03-03 | 2017-09-07 | 三浦工業株式会社 | Combustion control mechanism for gas boiler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100197681B1 (en) * | 1995-10-28 | 1999-06-15 | 윤종용 | Control system for a gas appliance and method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63163100A (en) * | 1986-12-25 | 1988-07-06 | Uchida Iwao | Supervesoly device for distribution gas pipe |
-
1990
- 1990-07-18 JP JP2191185A patent/JP2785458B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017156047A (en) * | 2016-03-03 | 2017-09-07 | 三浦工業株式会社 | Combustion control mechanism for gas boiler |
| WO2017149967A1 (en) * | 2016-03-03 | 2017-09-08 | 三浦工業株式会社 | Gas boiler combustion control mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0476310A (en) | 1992-03-11 |
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