JPS63151565U - - Google Patents
Info
- Publication number
- JPS63151565U JPS63151565U JP4321587U JP4321587U JPS63151565U JP S63151565 U JPS63151565 U JP S63151565U JP 4321587 U JP4321587 U JP 4321587U JP 4321587 U JP4321587 U JP 4321587U JP S63151565 U JPS63151565 U JP S63151565U
- Authority
- JP
- Japan
- Prior art keywords
- lock
- valve
- detection device
- differential pressure
- biasing
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 5
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Safety Valves (AREA)
Description
第１図は本考案の第１実施例による緊急遮断弁
の全体構成を示す正面図、第２図は同じく左側面
図、第３図は本考案の第１実施例を示す要部説明
図、第４図は本考案の第２実施例を示す要部説明
図、第５図及び第６図はロツク解除動作を示す説
明図、第７図は貯水タンクへの配管の説明図、第
８図は従来の緊急遮断弁で本考案と同等の機能を
持たせた場合の貯水タンクへの配管の説明図であ
る。
Ａ……緊急遮断弁（流入側）、Ｂ……緊急遮断
弁（流出側）、Ｔ……貯水タンク、７，８……差
圧シリンダ、９，１０……ピストンロツド、１４
……流入管、１５……オリフイス、１６……流出
管、１７……オリフイス、１８……長穴リンク、
１９……ピン、２０……保持レバー、２１……レ
バー、２３……調整用ウエイト、２４，２５……
差圧シリンダ。
FIG. 1 is a front view showing the overall configuration of an emergency shutoff valve according to a first embodiment of the present invention, FIG. 2 is a left side view of the same, and FIG. Fig. 4 is an explanatory diagram of the main parts showing the second embodiment of the present invention, Figs. 5 and 6 are explanatory diagrams showing the lock release operation, Fig. 7 is an explanatory diagram of piping to the water storage tank, and Fig. 8 is an explanatory diagram of piping to a water storage tank when a conventional emergency shutoff valve is provided with a function equivalent to that of the present invention. A...Emergency shutoff valve (inflow side), B...Emergency cutoff valve (outflow side), T...Water tank, 7, 8...Differential pressure cylinder, 9, 10...Piston rod, 14
... Inflow pipe, 15 ... Orifice, 16 ... Outflow pipe, 17 ... Orifice, 18 ... Long hole link,
19... Pin, 20... Holding lever, 21... Lever, 23... Adjustment weight, 24, 25...
Differential pressure cylinder.
Claims (1)
閉弁方向に回動付勢する付勢装置と、該付勢装置
の付勢力に抗して前記弁体を開弁状態にロツクす
るロツク装置と、前記管路内圧力差が所定設定値
を越えた時差圧シリンダを作動させる検出装置と
、該検出装置の作動により前記ロツク装置のロツ
クを解除する前記差圧シリンダから成るロツク解
除装置とを有する緊急遮断弁において、前記検出
装置を貯水タンクの流入管及び流出管に夫々設け
ると共に、前記差圧シリンダを二つ並列又は直列
に設け、前記流入管に対しては前記検出装置の上
流側圧力を前記差圧シリンダの二次側に、下流側
圧力を一次側に導入し、流出管に対しては前記検
出装置の上流側の圧力を一次側に、下流側の圧力
を二次側に導入するように構成したことを特徴と
する貯水タンク用緊急遮断弁。 A valve device interposed in a conduit, a biasing device that rotationally biases a valve body of the valve device in a valve closing direction, and a biasing device that rotates the valve body in an open state against the biasing force of the biasing device. A lock consisting of a lock device that locks the lock, a detection device that operates the differential pressure cylinder when the pressure difference in the pipe exceeds a predetermined set value, and the differential pressure cylinder that releases the lock of the lock device by the operation of the detection device. In the emergency shutoff valve having a release device, the detection device is provided in an inflow pipe and an outflow pipe of the water storage tank, and the two differential pressure cylinders are provided in parallel or in series, and the detection device is provided for the inflow pipe. The upstream pressure of the above-mentioned differential pressure cylinder is introduced into the secondary side and the downstream pressure is introduced into the primary side.For the outflow pipe, the upstream pressure of the detection device is introduced into the primary side, and the downstream pressure is introduced into the secondary side. An emergency shutoff valve for a water storage tank, characterized in that it is configured to be introduced on the next side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4321587U JPH0419095Y2 (en) | 1987-03-24 | 1987-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4321587U JPH0419095Y2 (en) | 1987-03-24 | 1987-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63151565U true JPS63151565U (en) | 1988-10-05 |
| JPH0419095Y2 JPH0419095Y2 (en) | 1992-04-28 |
Family
ID=30859866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4321587U Expired JPH0419095Y2 (en) | 1987-03-24 | 1987-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419095Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069000A (en) * | 1992-05-27 | 1994-01-18 | Maezawa Kiyuusou Kogyo Kk | Water supply apparatus with spare tank |
| JP2018048717A (en) * | 2016-09-23 | 2018-03-29 | 三菱日立パワーシステムズ株式会社 | Gas supply system and gas cutoff method |
-
1987
- 1987-03-24 JP JP4321587U patent/JPH0419095Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069000A (en) * | 1992-05-27 | 1994-01-18 | Maezawa Kiyuusou Kogyo Kk | Water supply apparatus with spare tank |
| JP2018048717A (en) * | 2016-09-23 | 2018-03-29 | 三菱日立パワーシステムズ株式会社 | Gas supply system and gas cutoff method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0419095Y2 (en) | 1992-04-28 |
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