JPS5658501A - Concentration controlling system in production of solution of plural kinds of concentrations - Google Patents
Concentration controlling system in production of solution of plural kinds of concentrationsInfo
- Publication number
- JPS5658501A JPS5658501A JP13553879A JP13553879A JPS5658501A JP S5658501 A JPS5658501 A JP S5658501A JP 13553879 A JP13553879 A JP 13553879A JP 13553879 A JP13553879 A JP 13553879A JP S5658501 A JPS5658501 A JP S5658501A
- Authority
- JP
- Japan
- Prior art keywords
- concentration
- output
- flow rate
- operator
- equivalently
- 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
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
PURPOSE: To enable solution of multiple kinds to be produced easily and efficiently with the same concentrating apparatus by operating, correcting and optimizing the output signal of a product solution outlet concentration detecting part and obtaining an optimum control constant equivalently.
CONSTITUTION: At the time of controlling product solution outlet concentration in a concentrating apparatus 1, raw liquid inlet flow rate is mainly operated at the steady operation and heating vapor flow rate is used in combination as suboperating quantity at the output concentrating changing. At the same instant when the output concentration is set by an output concentration setter 18, setting of a vapor flow control indicating controller 14 corresponding to the rate of evaporation determined from the concentration set value and the desired value of the raw liquid inlet flow rate etc. by an operator 19 is carried out. At the same time, the setting of an operator 20 to optimize the output signal of an output concentration indicating controller 17 is carried out as correction to the change in the process gain caused owing to the change of the concentration set value. In this way, the PID constant of the controller 17 is automatically adjusted so as to enter the allowable range of the optimum value equivalently.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13553879A JPS5658501A (en) | 1979-10-20 | 1979-10-20 | Concentration controlling system in production of solution of plural kinds of concentrations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13553879A JPS5658501A (en) | 1979-10-20 | 1979-10-20 | Concentration controlling system in production of solution of plural kinds of concentrations |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5658501A true JPS5658501A (en) | 1981-05-21 |
JPS6340121B2 JPS6340121B2 (en) | 1988-08-09 |
Family
ID=15154114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13553879A Granted JPS5658501A (en) | 1979-10-20 | 1979-10-20 | Concentration controlling system in production of solution of plural kinds of concentrations |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5658501A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6869501B2 (en) | 2001-12-20 | 2005-03-22 | 3M Innovative Properties Company | Continuous process for controlled concentration of colloidal solutions |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53123374A (en) * | 1977-04-04 | 1978-10-27 | Ebara Corp | Controlling method for concentrating still |
-
1979
- 1979-10-20 JP JP13553879A patent/JPS5658501A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53123374A (en) * | 1977-04-04 | 1978-10-27 | Ebara Corp | Controlling method for concentrating still |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6869501B2 (en) | 2001-12-20 | 2005-03-22 | 3M Innovative Properties Company | Continuous process for controlled concentration of colloidal solutions |
Also Published As
Publication number | Publication date |
---|---|
JPS6340121B2 (en) | 1988-08-09 |
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