JPS6329165B2 - - Google Patents
Info
- Publication number
- JPS6329165B2 JPS6329165B2 JP11260483A JP11260483A JPS6329165B2 JP S6329165 B2 JPS6329165 B2 JP S6329165B2 JP 11260483 A JP11260483 A JP 11260483A JP 11260483 A JP11260483 A JP 11260483A JP S6329165 B2 JPS6329165 B2 JP S6329165B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure
- pipe
- pressure switch
- gaseous fuel
- 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
- 239000000446 fuel Substances 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/007—Details
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
- Feeding And Controlling Fuel (AREA)
Description
【発明の詳細な説明】
この発明は気体燃料配管装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gaseous fuel piping system.
従来燃焼装置０１で第１図に示すように気体燃
料を燃焼させる配管系において、燃焼装置０１を
休止して燃料供給側の弁（バーナ弁）０２及び遮
蔽弁０３を全閉すると遮蔽弁０３から弁０２まで
の間の配管０４に気体燃料が残留する。 In a piping system for burning gaseous fuel in a conventional combustion device 01 as shown in FIG. Gaseous fuel remains in the pipe 04 up to the valve 02.
この場合一般的に残留圧力の方が大気圧よりも
高いため配管０４に取付けられた各種部品や機器
から残留気体燃料が漏洩する。 In this case, since the residual pressure is generally higher than the atmospheric pressure, residual gaseous fuel leaks from various parts and equipment attached to the pipe 04.
このリークは残留圧力が高いほど、また残留部
容積が大きいほどリークの可能性も高く、リーク
量も大きくなり、コスト面、安全面に与える影響
も大きくなる。 The higher the residual pressure and the larger the residual volume, the higher the possibility of leakage, the larger the amount of leakage, and the greater the impact on cost and safety.
この発明は、上記の欠点を解消するため配管内
の残留気体燃料の残圧を必要に応じ減圧させる装
置を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for reducing the residual pressure of residual gaseous fuel in a pipe as necessary, in order to eliminate the above-mentioned drawbacks.
すなわちこの発明は、気体燃料を供給する管路
の上流側に設置される遮蔽弁と燃焼装置入口に設
置される弁との間の管路に前記弁及び前記遮蔽弁
の全閉信号を受けて作動する圧力スイツチと、前
記弁と遮蔽弁との間の管路内の残留気体燃料を排
出する排気管とを設け、この排気管に前記圧力ス
イツチからの信号により開閉するベント弁を装着
してなる気体燃料配管装置にある。この発明によ
れば、圧力スイツチとこの圧力スイツチの信号に
より作動するベント弁により、配管内の残圧を減
圧させることができる。 That is, the present invention provides a system in which a pipe line between a shield valve installed on the upstream side of a pipe line for supplying gaseous fuel and a valve installed at the inlet of a combustion device receives a fully closed signal of the valve and the shield valve. A pressure switch that operates and an exhaust pipe that discharges residual gaseous fuel in the pipe between the valve and the shutoff valve are provided, and the exhaust pipe is equipped with a vent valve that opens and closes in response to a signal from the pressure switch. There is a gaseous fuel piping system. According to this invention, the residual pressure in the piping can be reduced by the pressure switch and the vent valve operated by a signal from the pressure switch.
この発明を第２図の実施例により説明する。気
体燃料を供給する管路４の上流側に設置される遮
蔽弁３と、燃料装置の入口に設置される弁２，２
との間の管路４に、圧力スイツチ５と排気管６と
を連通し、排気管６には逆止弁７を経てベント弁
８を設ける。弁２と圧力スイツチ５間、遮蔽弁３
と圧力スイツチ５間、圧力スイツチ５とベント弁
８間にはそれぞれ信号回路１０，１１，１２が設
けてある。 This invention will be explained with reference to the embodiment shown in FIG. A shield valve 3 installed on the upstream side of a pipe line 4 that supplies gaseous fuel, and valves 2, 2 installed at the inlet of the fuel device.
A pressure switch 5 and an exhaust pipe 6 are connected to a pipe line 4 between the two, and a vent valve 8 is provided in the exhaust pipe 6 via a check valve 7. Between valve 2 and pressure switch 5, shielding valve 3
Signal circuits 10, 11, and 12 are provided between the pressure switch 5 and the pressure switch 5, and between the pressure switch 5 and the vent valve 8, respectively.
燃焼装置１を休止し、弁２を全閉し、ついで遮
蔽弁３を全閉したとき、遮蔽弁３の信号により圧
力スイツチ５が作動し、配管４の残圧が、圧力ス
イツチ５にあらかじめ設定してある圧力より高い
ときは圧力スイツチ５からベント弁８へ「開」の
信号を送り、ベント弁８を開いて配管４の残圧を
排気管６から逆止弁７を経てベント弁８を通り開
放端９から放出する。 When the combustion device 1 is stopped, the valve 2 is fully closed, and the shutoff valve 3 is then fully closed, the pressure switch 5 is actuated by the signal from the shutoff valve 3, and the residual pressure in the pipe 4 is set in the pressure switch 5 in advance. When the pressure is higher than the specified pressure, the pressure switch 5 sends an "open" signal to the vent valve 8, the vent valve 8 is opened, and the residual pressure in the pipe 4 is discharged from the exhaust pipe 6 through the check valve 7 to the vent valve 8. It is discharged from the open end 9.
配管４の残圧が圧力スイツチ５にあらかじめ設
定された圧力になれば圧力スイツチ５から「閉」
の信号をベント弁８に送りベント弁８を閉じる。
圧力スイツチ５に設定する圧力は通常大気圧＋微
圧であり、また圧力スイツチ５の作動回路は自動
と手動の切換及び緊急作動又は緊急停止の設定を
行うことができるものとする。 When the residual pressure in the piping 4 reaches the preset pressure in the pressure switch 5, the pressure switch 5 will close it.
A signal is sent to the vent valve 8 to close the vent valve 8.
The pressure set in the pressure switch 5 is normally atmospheric pressure + micro pressure, and the operating circuit of the pressure switch 5 can be switched between automatic and manual modes and can be set for emergency operation or emergency stop.
本発明により配管内の気体燃料残圧を必要に即
して減圧させることができる。 According to the present invention, the residual pressure of the gaseous fuel in the pipe can be reduced as needed.
減圧後の配管内気体燃料残圧を大気圧に近いも
のとすることにより配管外への気体燃料のリーク
が防止できると共に配管内への大気のリークも防
止できる等の効果がある。 By making the residual pressure of the gaseous fuel in the pipe close to atmospheric pressure after pressure reduction, it is possible to prevent leakage of the gaseous fuel to the outside of the pipe and also to prevent atmospheric leakage into the pipe.
第１図は従来の気体燃料配管装置の配置図、第
２図は本発明の配置図である。
１……燃焼装置、２……弁、３……遮蔽弁、４
……管路、５……圧力スイツチ、６……排気管、
７……逆止弁、８……ベント弁、９……開放端、
１０，１１，１２……信号回路。
FIG. 1 is a layout diagram of a conventional gas fuel piping system, and FIG. 2 is a layout diagram of the present invention. 1...Combustion device, 2...Valve, 3...Shielding valve, 4
... Pipe line, 5 ... Pressure switch, 6 ... Exhaust pipe,
7... Check valve, 8... Vent valve, 9... Open end,
10, 11, 12...signal circuit.
Claims (1)
る遮蔽弁と燃焼装置入口に設置される弁との間の
管路に前記弁及び前記遮蔽弁の全閉信号を受けて
作動する圧力スイツチと、前記弁と遮蔽弁との間
の管路内の残留気体燃料を排出する排気管とを設
け、この排気管に前記圧力スイツチからの信号に
より開閉するベント弁を装着してなる気体燃料配
管装置。1. A pressure switch that operates in response to a fully closed signal of the valve and the shield valve in a pipe line between a shield valve installed on the upstream side of a pipe supplying gaseous fuel and a valve installed at the inlet of the combustion device. and an exhaust pipe for discharging residual gaseous fuel in the pipeline between the valve and the shielding valve, and the exhaust pipe is equipped with a vent valve that opens and closes in response to a signal from the pressure switch. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11260483A JPS604722A (en) | 1983-06-24 | 1983-06-24 | Piping device for gas fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11260483A JPS604722A (en) | 1983-06-24 | 1983-06-24 | Piping device for gas fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS604722A JPS604722A (en) | 1985-01-11 |
| JPS6329165B2 true JPS6329165B2 (en) | 1988-06-13 |
Family
ID=14590883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11260483A Granted JPS604722A (en) | 1983-06-24 | 1983-06-24 | Piping device for gas fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02148080A (en) * | 1988-11-30 | 1990-06-06 | Mita Ind Co Ltd | Paper powder eliminating device |
| JPH0355564A (en) * | 1989-07-25 | 1991-03-11 | Oki Electric Ind Co Ltd | Electrophotographic recording device |
-
1983
- 1983-06-24 JP JP11260483A patent/JPS604722A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02148080A (en) * | 1988-11-30 | 1990-06-06 | Mita Ind Co Ltd | Paper powder eliminating device |
| JPH0355564A (en) * | 1989-07-25 | 1991-03-11 | Oki Electric Ind Co Ltd | Electrophotographic recording device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS604722A (en) | 1985-01-11 |
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