JPS60158208U - Recirculation flow control device - Google Patents
Recirculation flow control deviceInfo
- Publication number
- JPS60158208U JPS60158208U JP4491584U JP4491584U JPS60158208U JP S60158208 U JPS60158208 U JP S60158208U JP 4491584 U JP4491584 U JP 4491584U JP 4491584 U JP4491584 U JP 4491584U JP S60158208 U JPS60158208 U JP S60158208U
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- recirculation
- control device
- rate
- flow rate
- 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.)
- Pending
Links
Landscapes
- Feedback Control In General (AREA)
- Flow Control (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の給水ポンプの再循環流量制御装置を示し
た系統図、第２図は０Ｎ−ＯＦＦ式再循環弁による流量
制御の従来例を示し□た系統図、第３図は給水ポンプの
Ｑ−Ｈ特性曲線、第４図は従来のＯＮ −ＯＦ Ｆ式再
循環弁の開弁時の給水変動の状 ・態を示しｔ９
チャート、第５図は本考案による再循環流量制御装置を
示した系統図、第６図は本考案による再循環弁の弁開直
後の給水変動状態を示したチャートである。
３・・・・・・給水ポンプ、４・・・・・・再循環弁、
５・・・・・・再循環管路、６・・・・・・流量計、訃
・・・・・調節計、１２・・・・・・流量設定器、１６
・・・・・・変化率制限器、１７・・・・・・ポジショ
ナ。Figure 1 is a system diagram showing a conventional recirculation flow rate control device for a water supply pump, Figure 2 is a system diagram showing a conventional example of flow rate control using an 0N-OFF type recirculation valve, and Figure 3 is a system diagram for a water supply pump. The Q-H characteristic curve of Figure 4 shows the state of water supply fluctuation when the conventional ON-OF type recirculation valve is opened.
FIG. 5 is a system diagram showing the recirculation flow rate control device according to the present invention, and FIG. 6 is a chart showing the fluctuation state of water supply immediately after the recirculation valve according to the present invention is opened. 3... Water supply pump, 4... Recirculation valve,
5... Recirculation pipe, 6... Flow meter, Controller, 12... Flow rate setting device, 16
... Rate of change limiter, 17 ... Positioner.
Claims (1)
プの吸込側とを再循環管路で連絡し、この再循環管路上
に再循環弁を組込み給水ポンプの吸込側を流れる給水の
実際流量と設定流量とを調節計で比較し、その偏差信号
で上記再循環弁を制御するようにした再循環流量制御装
置において、上記調節計の出力端と再循環弁との間に変
化率制限器を組込み調節計からの出力を変化率制限器に
入力し、この変化率制限器からの出力で再循環弁開閉制
御するようにしたことを特徴とする再循環流量制御装置
。The discharge side of the water supply pump built into the water supply system and the suction side of the water supply pump are connected through a recirculation pipe, and a recirculation valve is installed on this recirculation pipe to control the actual flow rate of the water supply flowing through the suction side of the water supply pump. and a set flow rate using a controller, and the recirculation valve is controlled using the deviation signal, and a rate-of-change limiter is installed between the output end of the controller and the recirculation valve. A recirculation flow rate control device characterized in that an output from a built-in controller is input to a rate-of-change limiter, and the output from the rate-of-change limiter controls opening and closing of a recirculation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4491584U JPS60158208U (en) | 1984-03-28 | 1984-03-28 | Recirculation flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4491584U JPS60158208U (en) | 1984-03-28 | 1984-03-28 | Recirculation flow control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60158208U true JPS60158208U (en) | 1985-10-21 |
Family
ID=30557930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4491584U Pending JPS60158208U (en) | 1984-03-28 | 1984-03-28 | Recirculation flow control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60158208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019031532A1 (en) * | 2017-08-09 | 2019-02-14 | 株式会社エー・シー・イー | Liquid micrometer |
-
1984
- 1984-03-28 JP JP4491584U patent/JPS60158208U/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019031532A1 (en) * | 2017-08-09 | 2019-02-14 | 株式会社エー・シー・イー | Liquid micrometer |
| JP2019032253A (en) * | 2017-08-09 | 2019-02-28 | アドバンス電気工業株式会社 | Liquid micrometer |
| CN110998227A (en) * | 2017-08-09 | 2020-04-10 | 先进电气工业株式会社 | Liquid micrometer |
| US11287297B2 (en) | 2017-08-09 | 2022-03-29 | Advance Denki Kogyo Kabushiki Kaisha | Liquid micrometer with a set flow rate value |
| TWI763898B (en) * | 2017-08-09 | 2022-05-11 | 日商先進電氣工業股份有限公司 | Liquid Micrometer |
| CN110998227B (en) * | 2017-08-09 | 2023-08-22 | 先进电气工业株式会社 | liquid micrometer |
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