JPH0434492U - - Google Patents
Info
- Publication number
- JPH0434492U JPH0434492U JP7556990U JP7556990U JPH0434492U JP H0434492 U JPH0434492 U JP H0434492U JP 7556990 U JP7556990 U JP 7556990U JP 7556990 U JP7556990 U JP 7556990U JP H0434492 U JPH0434492 U JP H0434492U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- predetermined
- detection section
- flow rate
- sends
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
第１図は本考案の一実施例を示す系統図、第２
図は同例の制御回路路図、第３図は同例の動作説
明用線図、第４図はポンプの動作特性を例示する
線図、第５図は従来例の制御回路図である。
１……ポンプ、４……流量検出部、５……圧力
検出部、７……制御回路、８……タイマ、１０…
…ポンプ駆動用電動機の開閉器励磁部。
Fig. 1 is a system diagram showing an embodiment of the present invention;
3 is a diagram for explaining the operation of the same example, FIG. 4 is a diagram illustrating the operating characteristics of the pump, and FIG. 5 is a control circuit diagram of the conventional example. DESCRIPTION OF SYMBOLS 1... Pump, 4... Flow rate detection part, 5... Pressure detection part, 7... Control circuit, 8... Timer, 10...
...Switch excitation part of pump drive motor.
Claims (1)
したときに所定の始動信号を送出する圧力検出部
、上記圧力検出部の始動信号により上記ポンプを
始動させこのポンプを所定時間運転状態に維持し
得るタイマ、および上記ポンプの吐出流量が所定
の下限値以下に低下したとき所定の停止信号を送
出し上記ポンプの発停を行う流量検出部を具備す
ることを特徴とするポンプ制御装置。 A pressure detection section that sends a predetermined start signal when the discharge side pressure of the pump drops below a predetermined lower limit value, and a start signal from the pressure detection section starts the pump and maintains the pump in an operating state for a predetermined time. 1. A pump control device comprising: a timer for determining the pump; and a flow rate detection section that sends a predetermined stop signal to start and stop the pump when the discharge flow rate of the pump falls below a predetermined lower limit value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7556990U JPH0434492U (en) | 1990-07-18 | 1990-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7556990U JPH0434492U (en) | 1990-07-18 | 1990-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434492U true JPH0434492U (en) | 1992-03-23 |
Family
ID=31616256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7556990U Pending JPH0434492U (en) | 1990-07-18 | 1990-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434492U (en) |
-
1990
- 1990-07-18 JP JP7556990U patent/JPH0434492U/ja active Pending
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