JPS55143603A - Controlling method for number of pump - Google Patents
Controlling method for number of pumpInfo
- Publication number
- JPS55143603A JPS55143603A JP5036079A JP5036079A JPS55143603A JP S55143603 A JPS55143603 A JP S55143603A JP 5036079 A JP5036079 A JP 5036079A JP 5036079 A JP5036079 A JP 5036079A JP S55143603 A JPS55143603 A JP S55143603A
- Authority
- JP
- Japan
- Prior art keywords
- pumps
- water
- arrived
- time
- predicted
- 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
- Control Of Positive-Displacement Pumps (AREA)
- Feedback Control In General (AREA)
Abstract
PURPOSE: To enable an online computer to exercise economical control over the number of pumps by predicting the number of pumps while the cumulated value of the inflow of the arrived water well of an intake plant will be between the upper and lower limits of the predicted cumulated value of outlet water discharge all the time, and then by finding the number of pumps to be put into operation corresponding to a request responding to it and the operation cost.
CONSTITUTION: Water from intake pump 1 is stored in arrived water well 2 and sent out at need and controller 3 for the number of pumps controls the start and stop of each pump. Then, the predicted discharge of the arrived water well is cumulated in terms of time to obtain curve E and then the changeable value of the overall water discharge of the arrived water well, i.e., the water volume at the time of the two-water level upper limit and that at the time of the one-water-level lower limit are added to curve E to find curve F. Here, while cumulated value A of arrived-water well intke flow is set between curves E and F all the time, the number of pumps to be put into operation is predicted and the demand and operation cost agreeing with the predicted number of pumps are used to determine the number of pumps to be put into operation. Consequently, a solution which is not strict but quasioptimum is found by the set of relatively-simple processes, so that a online control computer will be enabled to exercise control over the number of pumps.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5036079A JPS55143603A (en) | 1979-04-25 | 1979-04-25 | Controlling method for number of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5036079A JPS55143603A (en) | 1979-04-25 | 1979-04-25 | Controlling method for number of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55143603A true JPS55143603A (en) | 1980-11-10 |
Family
ID=12856716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5036079A Pending JPS55143603A (en) | 1979-04-25 | 1979-04-25 | Controlling method for number of pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55143603A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818704A (en) * | 1981-07-24 | 1983-02-03 | Hitachi Ltd | Controlling method for number of pumps |
| JPS60114905A (en) * | 1983-11-28 | 1985-06-21 | Toshiba Corp | Operating schedule deciding means of plural machines and apparatuses |
| JPS61182102A (en) * | 1985-02-07 | 1986-08-14 | Toshiba Corp | Controller for filtration plant |
-
1979
- 1979-04-25 JP JP5036079A patent/JPS55143603A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818704A (en) * | 1981-07-24 | 1983-02-03 | Hitachi Ltd | Controlling method for number of pumps |
| JPS60114905A (en) * | 1983-11-28 | 1985-06-21 | Toshiba Corp | Operating schedule deciding means of plural machines and apparatuses |
| JPS61182102A (en) * | 1985-02-07 | 1986-08-14 | Toshiba Corp | Controller for filtration plant |
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