JPS5735180A - Operating method of pumping apparatus - Google Patents
Operating method of pumping apparatusInfo
- Publication number
- JPS5735180A JPS5735180A JP9393980A JP9393980A JPS5735180A JP S5735180 A JPS5735180 A JP S5735180A JP 9393980 A JP9393980 A JP 9393980A JP 9393980 A JP9393980 A JP 9393980A JP S5735180 A JPS5735180 A JP S5735180A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water level
- block
- accordance
- signal
- 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
Abstract
PURPOSE: To prevent entire stop of water in service water facilities even when the tank is poorly fed with water by such a construction that the speed of water delivery pump is selected from three types of control methods in accordance with the water level of the tank.
CONSTITUTION: There are three signals emitted; a water level signal from a level signal transmitter 4, a pressure signal from a pressure transmitter 5, and an operative command signal to take in the flow signal from flow rate transmitter 6 and operate the water delivery pump 3 in accordance with the water level. A control selector block 9 selects the block of control methods in accordance with the water level. An end pressure constant control block 10 controls the water delivery pump 3 so that the discharge pressure at the place of use will become a certain preset end pressure. A stepped end pressure constant control block 11 controls the target discharge pressure so that it drops in accordance with the lowering of water level. A water level constant block 12 controls makes such a control that the water level of the tank 1 will not become lower than the level specified previously.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9393980A JPS5735180A (en) | 1980-07-11 | 1980-07-11 | Operating method of pumping apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9393980A JPS5735180A (en) | 1980-07-11 | 1980-07-11 | Operating method of pumping apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5735180A true JPS5735180A (en) | 1982-02-25 |
Family
ID=14096395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9393980A Pending JPS5735180A (en) | 1980-07-11 | 1980-07-11 | Operating method of pumping apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5735180A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104675686A (en) * | 2015-01-01 | 2015-06-03 | 山西太钢不锈钢股份有限公司 | Automatic adjusting method of water supply pressure |
-
1980
- 1980-07-11 JP JP9393980A patent/JPS5735180A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104675686A (en) * | 2015-01-01 | 2015-06-03 | 山西太钢不锈钢股份有限公司 | Automatic adjusting method of water supply pressure |
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