JPS645200B2 - - Google Patents
Info
- Publication number
- JPS645200B2 JPS645200B2 JP7512981A JP7512981A JPS645200B2 JP S645200 B2 JPS645200 B2 JP S645200B2 JP 7512981 A JP7512981 A JP 7512981A JP 7512981 A JP7512981 A JP 7512981A JP S645200 B2 JPS645200 B2 JP S645200B2
- Authority
- JP
- Japan
- Prior art keywords
- control device
- gas
- terminal control
- central control
- pressure
- 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
Links
- 238000004891 communication Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000219198 Brassica Species 0.000 description 1
- 235000003351 Brassica cretica Nutrition 0.000 description 1
- 235000003343 Brassica rupestris Nutrition 0.000 description 1
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000010460 mustard Nutrition 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、複数のガス暖房機等を集中的に制
御する集中管理装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a central control device that centrally controls a plurality of gas heaters and the like.
［従来の技術］
従来においては、例えば特開昭52−153248号公
報に示されたように、複数のガス暖房機を集中的
に制御する集中管理システムにおいてガスもれの
検出はガスセンサーを用いて行なう方式であり、
ガスセンサーを複数個適当な場所に設置するもの
であつた。[Prior Art] Conventionally, gas leaks have been detected using gas sensors in a centralized management system that centrally controls multiple gas heaters, as shown in Japanese Patent Application Laid-Open No. 52-153248. It is a method of conducting
Multiple gas sensors were installed at appropriate locations.
［発明が解決しようとする課題］
従来のものは、以上のようであつたから実際に
ガスもれが起きている所にセンサーがない場合に
は検出できないという問題があつた。それですべ
ての場所でガスもれを検出するには、数多くのセ
ンサーを必要とした。[Problems to be Solved by the Invention] As described above, the conventional gas leakage system had the problem that it could not be detected if the sensor was not located at the location where the gas leakage actually occurred. Therefore, a large number of sensors were required to detect gas leaks at all locations.
この発明は、このような問題点を解消するため
になされたもので、数多くのセンサーを必要とせ
ずに簡単にガスもれの検出が行なえるガス機器集
中管理装置を提供することを目的としている。 This invention was made to solve these problems, and aims to provide a gas equipment centralized control device that can easily detect gas leaks without requiring a large number of sensors. .
［課題を解決するための手段］
この発明はそのような従来の欠点を解消するた
めに、中央制御装置が１台の端末制御装置との通
信を終えると次のものとの通信へ移り、全部の端
末制御装置との通信を終了するとまた最初にもど
つて同一動作をくり返すための手段、圧力測定値
が異常の場合にはしや断バルブを閉止してガスも
れチエツクを開始する手段、上記しや断バルブの
閉止後所定時間おいて再度圧力測定を行ないこの
測定値と前の測定値とを比較してそれが許容量を
越えている場合にはアラームを発生する手段を有
している。[Means for Solving the Problems] In order to solve such conventional drawbacks, the present invention aims to solve the above-mentioned drawbacks of the conventional technology. A means for returning to the beginning and repeating the same operation when communication with the terminal control device is terminated, a means for closing the cutoff valve and starting a gas leak check when the pressure measurement value is abnormal; The pressure is measured again after a predetermined period of time after the shut-off valve is closed, and this measured value is compared with the previous measured value, and if the measured value exceeds the allowable amount, it has means for generating an alarm. There is.
［作用］
この発明においては、何れかの場所にガスもれ
があると、しや断バルブ閉止中のガス供給配管内
のガス圧が時間とともに減少する。これをガス圧
変動測定手段により検出しアラーム発生手段によ
つてアラームを発生させる。[Operation] In the present invention, if there is a gas leak at any location, the gas pressure in the gas supply pipe while the shrinking valve is closed decreases over time. This is detected by the gas pressure fluctuation measuring means and an alarm is generated by the alarm generating means.
［実施例］
以下、この発明を図示実施例により説明する。
第１図はこの発明の一実施例を示す概略構成図
で、図において、１は中央制御装置、２は端末制
御装置、３は信号線、４はガス機器の一例として
のガス暖房機、５は専用のガス配管、６は手動の
閉止弁、７は端末制御装置により制御されるしや
断バルブ、８は圧力センサーである。[Examples] The present invention will be described below with reference to illustrated examples.
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention. In the figure, 1 is a central control device, 2 is a terminal control device, 3 is a signal line, 4 is a gas heater as an example of gas equipment, and 5 6 is a dedicated gas pipe, 6 is a manual shutoff valve, 7 is a cutoff valve controlled by a terminal control device, and 8 is a pressure sensor.
次にその動作について説明する。端末制御装置
にはそれぞれ番号が割りあてられており、中央制
御装置からそれぞれ独立に通信が行なえる様にな
つている。閉止弁６は長期間にわたつて使用しな
い時に閉止し、通常は開放状態となつている。毎
日の配管の開閉はしや断バルブ７を用いて行な
い、その制御は中央制御装置１が行なう。 Next, its operation will be explained. Each terminal control device is assigned a number so that it can communicate independently from the central control device. The shutoff valve 6 is closed when not in use for a long period of time, and is normally in an open state. The daily opening and closing of the piping is carried out using a cutoff valve 7, and the central control unit 1 performs the control.
しや断バルブ７の開閉は中央制御装置１がしや
断バルブ７に接続されている端末制御装置２に対
して指令を出すことにより行なわれる。 The opening and closing of the shingle shutoff valve 7 is performed by the central control device 1 issuing a command to the terminal control device 2 connected to the shingle shutoff valve 7.
通常の運転は中央制御装置１が、それぞれの端
末制御装置２に対して指令信号を出すことにより
行なわれる。指令信号の内容には端末制御装置２
の番号も含まれているので、１台の端末制御装置
を特定して通信を行なうことができる。 Normal operation is performed by the central control device 1 issuing command signals to the respective terminal control devices 2. The contents of the command signal include the terminal control device 2.
Since the number of the terminal control device is also included, it is possible to specify and communicate with one terminal control device.
信号を受信した端末制御装置２はその指令内容
に従つてガス暖房機４を制御すると共に中央制御
装置１に対してガス暖房機４の運転状態等の信号
を返信する。１台の端末制御装置２との通信を終
えると、次のものとの通信へ移り、全部の端末制
御装置２との通信を終了するとまた最初にもどつ
て以下同一動作をくり返す。 The terminal control device 2 that has received the signal controls the gas heater 4 according to the contents of the command, and also sends back signals such as the operating status of the gas heater 4 to the central control device 1. When the communication with one terminal control device 2 is finished, the communication moves to the next one, and when the communication with all the terminal control devices 2 is finished, the process returns to the beginning and repeats the same operation.
上記の返信された信号に異常が生じた場合に
は、測定回路もしくは配管系統に異常があるの
で、しや断バルブ７を閉止してアラームを出す。 If an abnormality occurs in the above-mentioned returned signal, there is an abnormality in the measurement circuit or the piping system, so the cut-off valve 7 is closed and an alarm is issued.
返信信号が異常の場合にはしや断バルブ７を閉
止してガスもれチエツクを開始する。しや断バル
ブ７は閉止動作にも一定の時間を要するので、全
閉信号が来る迄待ち状態となる。全閉した後数秒
間の時間待ちを行なう。これは閉止動作で圧力変
動が出る可能性を防止するためである。その後再
度圧力測定を行なう。これは再確認の意味もある
が、バルブ閉止で測定値が異なる可能性もあるか
らである。この時にタイマーをスタートさせる。
そして１分経過後再び圧力測定を行なう。この測
定値と１分前に測定した測定値と比較して、その
差が許容量以内かどうかの判定を行なう（ガス圧
変動測定手段）。それが許容量を越えている場合
にはアラームを発生する（アラーム発生手段）。
正常であれば、再びしや断バルブの開放動作に入
り、全開後通常の制御ルーチンへ移行する。圧力
変動の許容量の設定については配管系統の大き
さ、接続部分、開口部の数およびガス圧力等によ
り影響を受けるので、あらかじめ設定できること
とし、その値の決定については現地での測定によ
り行なう方式をとつている。 If the reply signal is abnormal, the shield valve 7 is closed and a gas leak check is started. Since the closing valve 7 requires a certain amount of time to close, it is in a waiting state until a fully closed signal is received. Wait a few seconds after fully closing. This is to prevent the possibility of pressure fluctuations occurring during the closing operation. Then, measure the pressure again. This is for reconfirmation, but it is also because the measured value may differ due to the valve being closed. Start the timer at this time.
After one minute has elapsed, the pressure is measured again. This measured value is compared with the measured value measured one minute ago, and it is determined whether the difference is within an allowable amount (gas pressure fluctuation measuring means). If it exceeds the allowable amount, an alarm is generated (alarm generating means).
If it is normal, the opening operation of the shrunken valve is resumed, and after it is fully opened, the routine returns to the normal control routine. Setting the allowable amount of pressure fluctuation is affected by the size of the piping system, connections, number of openings, gas pressure, etc., so it will be possible to set it in advance, and the value will be determined by on-site measurements. I'm taking it.
以上の実施例では中央制御装置１の起動を手動
で行なうこととしているが、この装置にタイマー
をとり付けて自動運転も可能であり、それにタイ
マーにより、中央制御装置１が起動した場合にも
自動的にガスもれチエツクを行なうことができる
のはいうまでもない。 In the above embodiment, the central control device 1 is started manually, but it is also possible to install a timer to this device to enable automatic operation. Needless to say, it is possible to check for gas leaks.
以上の動作フローを示したのが第２図に示すフ
ローチヤート図である。このような動作は中央制
御装置１に内蔵したマイクロコンピユータにより
行なわれる。 The flowchart shown in FIG. 2 shows the above operation flow. Such operations are performed by a microcomputer built into the central control unit 1.
なお、上記の実施例では説明しなかつたが、信
号線３は既設の電力線で兼用させ、電力線中に送
られた信号によつて制御されるようにしてもよ
い。 Although not described in the above embodiment, the signal line 3 may also be an existing power line and may be controlled by a signal sent through the power line.
［発明の効果］
以上のように、この発明によれば、複数のガス
機器へのガス供給系統を専用配管とし、この配管
の入口側にしや断バルブを、それのガス機器側に
ガス圧測定装置を設置するとともに、上記全ガス
機器の運転停止時で上記しや断バルブ閉止時に、
上記ガス圧測定制御により所定時間おいてガス圧
を複数回測定することによりガス圧の変動を測定
し、その測定値が許容範囲を越えるとアラームを
発するようにしたので、どのガス機器でガスもれ
が生じても中央制御装置からしや断バルブに対し
閉止信号が与えられる。このため、数多くのセン
サーを必要としないのみでなく、しや断バルブ閉
止によるガス圧変動の影響を受けることなく、正
確かつ簡単にガスもれの検出が行なえ、ガスもれ
の事故を未然に防止できる効果がある。[Effects of the Invention] As described above, according to the present invention, a gas supply system to a plurality of gas appliances is provided with dedicated piping, and a shear valve is installed on the inlet side of this piping, and a gas pressure measuring valve is installed on the gas equipment side. In addition to installing the equipment, when all the gas equipment mentioned above is stopped and the above shingle valve is closed,
The gas pressure measurement control described above measures gas pressure multiple times at predetermined intervals to measure fluctuations in gas pressure, and when the measured value exceeds the allowable range, an alarm is issued. Even if this occurs, the central controller will provide a closing signal to the mustard shutoff valve. This not only eliminates the need for a large number of sensors, but also enables accurate and easy detection of gas leaks without being affected by gas pressure fluctuations caused by closing the shingle valve, thereby preventing gas leak accidents from occurring. It has a preventive effect.
第１図はこの発明の一実施例を示す全体構成
図、第２図はその動作を示すフローチヤート図で
ある。
図中、１は中央制御装置、２は端末制御装置、
３は信号線、４はガス機器、５はガス配管、７は
しや断バルブ、８は圧力センサーである。
FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing its operation. In the figure, 1 is a central control device, 2 is a terminal control device,
3 is a signal line, 4 is a gas device, 5 is a gas pipe, 7 is a cutoff valve, and 8 is a pressure sensor.
Claims (1)
れ、上記中央制御装置からそれぞれ独立して通
信され、複数のガス機器をそれぞれ制御し、そ
のガス機器の運転状態等の信号を上記中央制御
装置に返信する端末制御装置、 (c) ガス機器へのガス配管を専用配管としこの専
用ガス配管の入口側に設けられ、上記端末制御
装置を介して上記中央制御装置からの指令によ
つて制御されるしや断バルブ、 (d) 上記端末制御装置に接続され上記専用ガス配
管の圧力を感知する圧力センサー、 (e) 上記中央制御装置が１台の上記端末制御装置
との通信を終えると、次のものとの通信へ移
り、全部の端末制御装置との通信を終了すると
また最初にもどつて同一動作をくり返すための
手段、 (f) 返信された信号に異常が生じた場合には上記
しや断バルブを閉止してガスもれチエツクを開
始する手段、 (g) 上記しや断バルブの閉止後所定時間おいて再
度圧力測定を行ないこの測定値と前の測定値と
を比較してそれが許容量を越えている場合には
アラームを発生する手段とを有するガス機器集
中管理装置。 ２ 中央制御装置と端末制御装置との間の信号を
電力線を介して送るようにしたことを特徴とする
特許請求の範囲第１項記載のガス機器集中管理装
置。[Scope of Claims] 1 (a) a central control device; (b) connected to the central control device via a signal line, each communicating independently from the central control device, and controlling each of a plurality of gas appliances. , a terminal control device that returns signals such as the operating status of the gas equipment to the central control device; (c) a dedicated gas pipe for the gas equipment and installed on the inlet side of the dedicated gas pipe; (d) a pressure sensor that is connected to the terminal control device and senses the pressure of the dedicated gas piping; (e) a pressure sensor that is connected to the terminal control device and senses the pressure in the dedicated gas pipe; When the device finishes communicating with one terminal control device, it moves on to communication with the next one, and when it finishes communicating with all the terminal control devices, it returns to the beginning and repeats the same operation, ( f) A means for closing the shield valve and starting a gas leak check if an abnormality occurs in the returned signal; (g) Measuring the pressure again at a predetermined time after closing the shield valve. and a means for comparing this measured value with a previous measured value and generating an alarm if the measured value exceeds an allowable value. 2. The gas appliance centralized control device according to claim 1, characterized in that signals between the central control device and the terminal control devices are sent via a power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7512981A JPS57190200A (en) | 1981-05-19 | 1981-05-19 | Centralized management system of gas equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7512981A JPS57190200A (en) | 1981-05-19 | 1981-05-19 | Centralized management system of gas equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57190200A JPS57190200A (en) | 1982-11-22 |
| JPS645200B2 true JPS645200B2 (en) | 1989-01-30 |
Family
ID=13567269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7512981A Granted JPS57190200A (en) | 1981-05-19 | 1981-05-19 | Centralized management system of gas equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190200A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126993A (en) * | 1991-11-05 | 1993-05-25 | Nuclear Fuel Ind Ltd | Exhaust device for nuclear fuel treatment facility |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0697477B2 (en) * | 1986-12-11 | 1994-11-30 | 新コスモス電機株式会社 | Gas leak signal transmission method |
| US5126934A (en) * | 1989-06-09 | 1992-06-30 | Smart House, L.P. | Gas distribution system |
| JP4439195B2 (en) * | 2003-03-26 | 2010-03-24 | 大阪瓦斯株式会社 | Utility consumer equipment operation recognition device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534400Y2 (en) * | 1976-06-29 | 1980-08-14 | ||
| JPS53133786U (en) * | 1977-03-30 | 1978-10-23 | ||
| JPS5417790A (en) * | 1977-07-09 | 1979-02-09 | Sumitomo Electric Ind Ltd | Gas leakage supervising method |
-
1981
- 1981-05-19 JP JP7512981A patent/JPS57190200A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126993A (en) * | 1991-11-05 | 1993-05-25 | Nuclear Fuel Ind Ltd | Exhaust device for nuclear fuel treatment facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57190200A (en) | 1982-11-22 |
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