JPH0478400A - Emergency detecting device for gas supply unit - Google Patents
Emergency detecting device for gas supply unitInfo
- Publication number
- JPH0478400A JPH0478400A JP19119090A JP19119090A JPH0478400A JP H0478400 A JPH0478400 A JP H0478400A JP 19119090 A JP19119090 A JP 19119090A JP 19119090 A JP19119090 A JP 19119090A JP H0478400 A JPH0478400 A JP H0478400A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- gas
- gas supply
- supply equipment
- signal
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 30
- 230000005856 abnormality Effects 0.000 claims description 24
- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Pipeline Systems (AREA)
Abstract
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
。′
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
出向いて安全チエツクを行っていた。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a gas supply equipment abnormality detection device for detecting an abnormality in a pressure regulator, which is an LP gas supply equipment. ´ Conventional technology In recent years, in order to prevent explosions caused by gas leaks and fires caused by forgetting to turn off gas appliances, gas meters are equipped to monitor gas leaks and how long gas appliances are used. If this continues, it is assumed that the gas appliance has been turned off, and gas cutoff devices are being installed that cut off the gas supply, ensuring safety downstream from the gas meter. . On the other hand, regarding safety management upstream of the gas meter, that is, from the LP gas cylinder to the gas meter, conventionally a person went to the site once every two years to conduct 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 overview of such conventional safety management will be explained with reference to FIG.
第２図は従来のガス供給設備における安全チエツク手段
のブロンク図である。第２図において、１はＬ Ｐ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 a safety check means in a conventional gas supply facility. In FIG. 2, 1 is an LP gas cylinder, 2 is a main valve of the cylinder, 3 is a pressure regulator, 4 is a gas meter, 5 is a gas appliance, 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
全チエ２９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年に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。ボンへ元栓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とともにペン
レコーダ７にガス圧力を記録して圧力調整器３の圧力調
整能力についてチエツクする。測定されたガス圧力が２
３０Ｊ３０ＭＨ２０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する。The operation of the safety check 29 means in the conventional gas supply equipment configured as described above will be explained with reference to FIG. Once every two years, a person visits the site, connects a 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 with a pen recorder 7. Open the main valve 2 to the gas tank and the gas cutoff valve in the gas meter 4, put the gas appliance 5 in the normal operating state, measure the gas pressure with the pressure gauge 6, record the gas pressure on the pen recorder 7, and set the pressure regulator 3. Check pressure adjustment ability. The measured gas pressure is 2
If it is between 30J30MH20, it is normal; otherwise, it is determined that the pressure regulator 3 is malfunctioning.
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
に行きチエツク機器を設置して安全チエツクを行う必要
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, the above-mentioned configuration has the problem that it requires a person to go to each site, install check equipment, and perform safety checks, which takes time and effort.
本発明は上記ｉ！題に鑑み、自動的に圧力調整器の異常
をチエツ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 is based on the above i! In view of this problem, it is an object of the present invention to provide a gas supply equipment abnormality detection device that can automatically check for abnormalities in a pressure regulator.
課題を解決するための手段
」二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である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ガ
ス圧の変動速度を検出する圧力変動速度検出手段と前記
圧力検出手段及び前記圧力変動速度検出手段からの信号
番こより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 problems described in item 2, the gas supply equipment abnormality detection device of the present invention detects the gas pressure in the gas supply equipment downstream of the pressure regulator, which is the gas supply equipment. means, pressure fluctuation speed detection means for detecting the fluctuation speed of the gas pressure, determination means for determining whether there is an abnormality in the gas supply equipment based on signal numbers from the pressure detection means and the pressure fluctuation speed detection means, and the determination means. The apparatus is equipped with an output means operated by a signal from the means.
作用
本発明は上記した構成によって自動的にガス供給設備内
のガス圧の変動を検出し、その変動パターンと変動速度
との関係により正常なガス圧変動か異常なガス圧変動か
を識別することができ人手による安全チエツクを省略で
きることとなる。Operation The present invention uses the above-described configuration to automatically detect fluctuations in gas pressure within a gas supply facility, and identifies whether it is a normal gas pressure fluctuation or an abnormal gas pressure fluctuation based on the relationship between the fluctuation pattern and the fluctuation speed. This means that manual safety checks 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。EXAMPLE Hereinafter, a gas supply equipment abnormality detection device according to an example 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は圧力検出手段である圧力
センサ、９はコンパレーク、１０は圧力の変動速度を検
出する圧力変動速度検出手段、１１は判定手段、１２は
出力手段である。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 detection device in an embodiment of the present invention. In Fig. 1, 1 is an LP gas cylinder, 2 is a main valve of the cylinder, 3 is a pressure regulator, 4 is a gas meter, 5 is a gas appliance, 8 is a pressure sensor which is a pressure detection means, 9 is a comparator, and 10 is a pressure fluctuation. 11 is a determination means, and 12 is an output means. Note that blocks showing the same functions as those in the conventional example shown in FIG. 2 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, which is an embodiment of the present invention configured as described above, will be described below.
圧力調整器３の圧力調整機能が正常に動作している場合
にはガス器具使用状態ではガス供給設備内のガス圧は２
３０Ｊ３０１１１１ Ｈｔ Ｏの間に保たれている。If the pressure adjustment function of pressure regulator 3 is operating normally, the gas pressure in the gas supply equipment will be 2 when the gas appliance is in use.
30J301111 Ht O.
しかしながらガス器具を使用していない時には圧力調整
器３が正常であってもガス供給設備に日光が当たりガス
供給設備内に閉じこめられているガスの温度が上昇する
とガスが膨張しようとしてガス圧が」−昇し、３３０馴
Ｈｚ Ｏをこえることが考えられる。従ってその圧力上
昇が圧力調整器３の異常によるものか温度によるものか
を識別する必要がある。本実施例においては温度上昇に
よる圧力」二昇はその上昇速度がゆっくりしたものにな
るということを利用している。However, even if the pressure regulator 3 is normal when the gas appliance is not in use, when sunlight hits the gas supply equipment and the temperature of the gas trapped inside the gas supply equipment rises, the gas tries to expand and the gas pressure decreases. - It is thought that the temperature may rise to more than 330Hz. Therefore, it is necessary to identify whether the pressure increase is due to an abnormality in the pressure regulator 3 or to temperature. In this embodiment, the fact that the rate of increase in pressure due to temperature rise is slow is utilized.
以下この例について動作を説明する。圧力センサ８から
の信号はコンパレータ９に入力する。コンパレータ９は
圧力センサ８の出力が３３０＋ｎｎ＋ＨｔＯを越えた時
出力を生じるように設定されている。The operation of this example will be explained below. The signal from the pressure sensor 8 is input to a comparator 9. The comparator 9 is set to produce an output when the output of the pressure sensor 8 exceeds 330+nn+HtO.
また圧力センサ８からの信号は同時に圧力変動速度検出
手段１０にも入力し、圧力変動速度検出手段】０は圧力
センサ８の圧力変動速度が一定の速度（例えば］＋ｍａ
ＨｔＯ／ｓｅｅ、 ）以上になれば出力を生じるように
設定されている。温度による圧力上昇の時の圧力変動速
度は通常の場合０．５閣Ｈｘ Ｏ／ｓｅｃ、以下である
からコンパレータ９と圧力変動速度検出手段ｌＯが共に
出力を生じた場合は圧力調整器３が異常を起こしたもの
として判定手段１】は次段の出力手段１２に信号を送る
。信号を受けた出力手段１２では■、ＥＤ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。The signal from the pressure sensor 8 is also input to the pressure fluctuation speed detection means 10 at the same time.
It is set so that an output is generated when the temperature exceeds HtO/see, ). The speed of pressure fluctuation when pressure increases due to temperature is normally 0.5 Hx O/sec, or less, so if both the comparator 9 and the pressure fluctuation speed detection means lO produce an output, the pressure regulator 3 is abnormal. The determining means 1 sends a signal to the output means 12 at the next stage as having occurred. Upon receiving the signal, the output means 12 notifies a person of the abnormality by lighting or blinking the ED or notifies the management center of an alarm using a telephone line or the like. Alternatively, a gas cutoff valve provided in the gas supply equipment is operated to stop the gas supply.
以上のように本実施例によれば、ガス供給設備である圧
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ガス圧の変動速度を検出する圧力変
動速度検出手段と前記圧力検出手段及び前記圧力変動速
度検出手段からの信号により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、温度上昇に
よる圧力上昇か圧力調整器の異常による圧力上昇かを識
別し、異常時に人に報知できるガス供給設備異常検出装
置を提供できることとなる。As described above, according to this embodiment, the pressure detection means detects the gas pressure in the gas supply equipment downstream of the pressure regulator, which is the gas supply equipment, and the pressure fluctuation speed detector detects the fluctuation speed of the gas pressure. A determination means for determining whether or not there is an abnormality in the gas supply equipment based on signals from the pressure detection means and the pressure fluctuation speed detection means, and an output means operated by the signal from the determination means. This makes it possible to provide a gas supply equipment abnormality detection device that can identify whether the pressure is rising or is due to an abnormality in the pressure regulator, and can notify people in the event of an abnormality.
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し、ガスメータ４に内蔵してもよ
い。またガス供給設備異常検出装置全部を別ユニ、トと
してもよいし、一部例えば圧力センサ８を圧力調整器３
又はガスメータ４に内蔵させ他の部分を別の場所に設け
てもよい。さらに圧力センサ８は圧力言）ｌ祭器の下流
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。また判定手段１１はマイクロコ
ンピュータによるソフトウニアロジンクにより実現して
もよい。Note that the gas supply equipment abnormality detection device of the present invention is a pressure regulator 3.
It may be built into the gas meter 4 or may be built into the gas meter 4. Further, the entire gas supply equipment abnormality detection device may be provided as a separate unit, or a portion of the device, for example, the pressure sensor 8 may be replaced with the pressure regulator 3.
Alternatively, it may be built into the gas meter 4 and other parts may be provided elsewhere. Further, the pressure sensor 8 may be located anywhere downstream of the pressure sensor, for example, between the gas meter 4 and the gas appliance 5. Further, the determination means 11 may be realized by software aloginc using a microcomputer.
発明の効果
以上のように本発明は、ガス供給設備である圧力調整器
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
手段と前記ガス圧の変動速度を検出する圧力変動速度検
出手段と前記圧力検出手段及び前記圧力変動速度検出手
段からの信号により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
作する出力手段とを設けることにより、圧力調整器異常
を検出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。Effects of the Invention As described above, the present invention provides a pressure detection means for detecting the gas pressure in the gas supply equipment downstream of the pressure regulator, which is the gas supply equipment, and a pressure fluctuation speed detection means for detecting the fluctuation speed of the gas pressure. By providing a determination means for determining whether or not there is an abnormality in the gas supply equipment based on signals from the pressure detection means and the pressure fluctuation speed detection means, and an output means operated by the signal from the determination means, the pressure can be increased. A gas supply equipment abnormality detection device capable of detecting regulator abnormality can be provided.
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、ｌＯ・・−・−・
圧力変動速度検出手段。
代理人の氏名 弁理士 粟野重孝 はか１名菓１図
第２図FIG. 1 is a block diagram of a gas supply equipment abnormality detection device according to an embodiment of the present invention, and FIG. 2 is a conventional block diagram. 1... LP gas cylinder, 2... cylinder main valve, 3... pressure regulator, 4... gas meter, 5... gas appliance , lO・・−・−・
Pressure fluctuation speed detection means. Name of agent: Patent attorney Shigetaka Awano
Claims (2)
給設備内のガス圧を検出する圧力検出手段と前記ガス圧
の変動速度を検出する圧力変動速度検出手段と前記圧力
検出手段及び前記圧力変動速度検出手段からの信号によ
り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) Pressure detection means for detecting the gas pressure in the gas supply equipment downstream of the pressure regulator, which is the gas supply equipment; pressure fluctuation speed detection means for detecting the fluctuation rate of the gas pressure; A gas supply equipment abnormality detection device comprising a determination means for determining whether there is an abnormality in the gas supply equipment based on a signal from a pressure fluctuation speed detection means, and an output means operated by a signal from the determination means.
た時で且つ圧力変動速度検出手段がある決められた速度
以上を検出した時には出力を生じるように構成された判
定手段を有する請求項１記載のガス供給設備異常検出装
置。(2) Claim 1 further comprising determining means configured to produce an output when the signal from the pressure detecting means exceeds a certain level and when the pressure fluctuation speed detecting means detects a predetermined speed or above. The gas supply equipment abnormality detection device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191190A JPH0678800B2 (en) | 1990-07-18 | 1990-07-18 | Gas supply equipment abnormality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191190A JPH0678800B2 (en) | 1990-07-18 | 1990-07-18 | Gas supply equipment abnormality detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0478400A true JPH0478400A (en) | 1992-03-12 |
| JPH0678800B2 JPH0678800B2 (en) | 1994-10-05 |
Family
ID=16270401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191190A Expired - Lifetime JPH0678800B2 (en) | 1990-07-18 | 1990-07-18 | Gas supply equipment abnormality detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0678800B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008304993A (en) * | 2007-06-05 | 2008-12-18 | Air Water Energy Inc | Communication system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02201509A (en) * | 1989-01-31 | 1990-08-09 | Yazaki Corp | Gas pressure governing/weigher |
-
1990
- 1990-07-18 JP JP2191190A patent/JPH0678800B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02201509A (en) * | 1989-01-31 | 1990-08-09 | Yazaki Corp | Gas pressure governing/weigher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008304993A (en) * | 2007-06-05 | 2008-12-18 | Air Water Energy Inc | Communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0678800B2 (en) | 1994-10-05 |
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