JPS5924575U - Valve emergency closing device - Google Patents
Valve emergency closing deviceInfo
- Publication number
- JPS5924575U JPS5924575U JP11986582U JP11986582U JPS5924575U JP S5924575 U JPS5924575 U JP S5924575U JP 11986582 U JP11986582 U JP 11986582U JP 11986582 U JP11986582 U JP 11986582U JP S5924575 U JPS5924575 U JP S5924575U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- emergency
- closing device
- inverter
- relay
- 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
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案装置の電気回路図、第２図および第３図
はその部分詳細図、第４図は各種リミットスイッチの開
閉時期の説明図、第５図はインバータの出力周波数と弁
の閉鎖時間との関係図、第６図は弁の好適な閉鎖パター
ンを示す線図である。
Ｒ，Ｓ、 Ｔ・・・商用の三相交流電源の端子、ＭＣＢ
・・・電源開閉器、ＮＶＲ・・・非常検出リレー、ＣＨ
・・・充電器、Ｐ、 Ｎ・・・操作母線、ＢＴ・・・蓄
電池、ＩＮＶ・・・インバータ、ＴＲ・・・トランス、
ＩＭ・・・交流モータ、■・・・弁、ＴＨＲ・・・温度
リレー、ＭＣＩ・・・商用電源開閉用リレー、ＭＣ２・
・・インバータ電源開閉用リレー、ＭＣ３・・・弁開放
用リレー、ＭＣ４・・・弁閉止用リレー、ＯＲ・・・弁
全開時に作動するリレー、ＣＲ・・・弁全閉時に作動す
るリレー、１Ｒ・・・弁の第１中間開度で作動するリレ
ー、２Ｒ・・・弁の第２中間開度て作動するリレー、ｌ
ＰＢ・・・弁開放用操作スイッチ、２ＰＢ・・・弁閉止
用操作スイッチ、３ＰＢ・・・弁停止用操作スイッチ、
ｌＬＳ・・・弁の開放時の過トルク用リミットスイッチ
、２ＬＳ・・・弁の閉止時の過トルク用リミットスイッ
チ、３ＬＳ・・・弁の全開時作動するリミットスイッチ
、４ＬＳ・・・弁の全閉時に作動するリミットスイッチ
、５ＬＳ・・・升の第１巾間開度で作動するリミットス
イッチ、６ＬＳ・・・弁の第２中間開度で作動するリミ
ットスイッチ。Fig. 1 is an electric circuit diagram of the device of the present invention, Figs. 2 and 3 are partial details thereof, Fig. 4 is an explanatory diagram of the opening/closing timing of various limit switches, and Fig. 5 is an illustration of the inverter output frequency and valve timing. FIG. 6 is a diagram showing a preferred closing pattern of the valve. R, S, T...Commercial three-phase AC power supply terminals, MCB
...Power switch, NVR...Emergency detection relay, CH
...Charger, P, N...Operation bus, BT...Storage battery, INV...Inverter, TR...Transformer,
IM...AC motor, ■...Valve, THR...Temperature relay, MCI...Commercial power supply switching relay, MC2...
... Relay for opening and closing the inverter power supply, MC3... Relay for opening the valve, MC4... Relay for closing the valve, OR... Relay that operates when the valve is fully open, CR... Relay that operates when the valve is fully closed, 1R ...Relay that operates at the first intermediate opening of the valve, 2R...Relay that operates at the second intermediate opening of the valve, l
PB...operation switch for opening the valve, 2PB...operation switch for closing the valve, 3PB...operation switch for stopping the valve,
lLS...Limit switch for overtorque when the valve is open, 2LS...Limit switch for overtorque when the valve is closed, 3LS...Limit switch that operates when the valve is fully open, 4LS...Limit switch for overtorque when the valve is fully open. A limit switch that operates when closed, 5LS...a limit switch that operates at the first width opening of the square, 6LS...a limit switch that operates at the second intermediate opening of the valve.
Claims (1)
ータを使用し、その電源として平常時には商用電源を用
い、停電等の非常時には蓄電池電源の直流出力を可変周
波数、可変電圧インバータを介して交流に変換して前記
モータに印加することにより、この管路系統に適した速
度で弁を閉鎖するようにしたことを特徴とする弁の緊急
閉鎖装置。 ２ 商用電源の回路に停電等の非常状態を検出する非常
検出リレーを設け、このリレーの開閉接点を適用電源と
インバータ出力の切り替え制御回路中に設けると共に、
弁開度に応じて作動するリレーによってインバータ出力
を制御する実用新案登録請求の範囲第１項記載の弁の緊
急閉鎖装置。 ３ インバータの出力側にトランスを設けると共に、そ
の二次電圧をインバータの入力側にフィードバックする
回路を有する実用新案登録請求の範囲第２項記載の弁の
緊急閉鎖装置。[Scope of Claim for Utility Model Registration] 1. An AC motor is used as the driving force for a valve opening/closing device installed in a pipeline, and as its power source, a commercial power source is used in normal times, and a DC output from a storage battery power source is used in an emergency such as a power outage. An emergency valve closing device characterized in that the valve is closed at a speed suitable for the pipeline system by converting the alternating current to alternating current and applying it to the motor via a variable frequency, variable voltage inverter. 2. An emergency detection relay is installed in the commercial power supply circuit to detect emergency conditions such as power outages, and the opening/closing contacts of this relay are installed in the switching control circuit between the applicable power source and the inverter output.
An emergency valve closing device according to claim 1, which controls an inverter output by a relay that operates according to the valve opening degree. 3. The emergency closing device for a valve according to claim 2, which is a utility model and has a transformer on the output side of the inverter and a circuit for feeding back the secondary voltage to the input side of the inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11986582U JPS5924575U (en) | 1982-08-09 | 1982-08-09 | Valve emergency closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11986582U JPS5924575U (en) | 1982-08-09 | 1982-08-09 | Valve emergency closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5924575U true JPS5924575U (en) | 1984-02-15 |
| JPS645167Y2 JPS645167Y2 (en) | 1989-02-09 |
Family
ID=30274923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11986582U Granted JPS5924575U (en) | 1982-08-09 | 1982-08-09 | Valve emergency closing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014120096A (en) * | 2012-12-19 | 2014-06-30 | Ebara Corp | Delivery valve unit and pump system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5315217A (en) * | 1976-07-29 | 1978-02-10 | Toshiba Corp | Lead wire |
-
1982
- 1982-08-09 JP JP11986582U patent/JPS5924575U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5315217A (en) * | 1976-07-29 | 1978-02-10 | Toshiba Corp | Lead wire |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014120096A (en) * | 2012-12-19 | 2014-06-30 | Ebara Corp | Delivery valve unit and pump system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS645167Y2 (en) | 1989-02-09 |
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