JPS60178516A - Concentration control system for carbon dioxide gas - Google Patents

Concentration control system for carbon dioxide gas

Info

Publication number
JPS60178516A
JPS60178516A JP59034082A JP3408284A JPS60178516A JP S60178516 A JPS60178516 A JP S60178516A JP 59034082 A JP59034082 A JP 59034082A JP 3408284 A JP3408284 A JP 3408284A JP S60178516 A JPS60178516 A JP S60178516A
Authority
JP
Japan
Prior art keywords
dumper
external air
carbon dioxide
dioxide gas
controlled
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
Application number
JP59034082A
Other languages
Japanese (ja)
Inventor
Masahiro Hayakawa
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP59034082A priority Critical patent/JPS60178516A/en
Publication of JPS60178516A publication Critical patent/JPS60178516A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means

Abstract

PURPOSE:To shorten a thickness improvement time and to save energy by controlling an external air dumper so that the intake amount of external air is increased or decreased when the concentration of carbon dioxide gas is controlled. CONSTITUTION:A controller 11 for carbon dioxide gas concentration control consists of analog input/output parts 13 and 14, a microprocessor 19, etc., and measured values of a carbon dioxide gas concentration sensor 5 and an external air speed sensor 12 are stored in RAM17. A program in ROM18 is executed by a microprocessor 19 to control opening extents of the external air dumper 2, a discharge dumper 3, and a forced circulation dumper 4. Namely, the requested amount of external air during current control is calculated from measured value from both sensors 5 and 12 to calculate the opening extent of the external air dumper 2, which is controlled through a D/A conversion part 16 and an analog output part 14. Further, the opening extents of the discharge dumper 3 and forced circulation dumper 4 are controlled by the controller 11 at specific intervals of time to introduce an optimum amount of external air.
JP59034082A 1984-02-24 1984-02-24 Concentration control system for carbon dioxide gas Pending JPS60178516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59034082A JPS60178516A (en) 1984-02-24 1984-02-24 Concentration control system for carbon dioxide gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59034082A JPS60178516A (en) 1984-02-24 1984-02-24 Concentration control system for carbon dioxide gas

Publications (1)

Publication Number Publication Date
JPS60178516A true JPS60178516A (en) 1985-09-12

Family

ID=12404338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59034082A Pending JPS60178516A (en) 1984-02-24 1984-02-24 Concentration control system for carbon dioxide gas

Country Status (1)

Country Link
JP (1) JPS60178516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587382A (en) * 1991-09-30 1993-04-06 Kubota Corp Atmospheric air introduction type air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960141A (en) * 1982-09-28 1984-04-06 Toupure Kk Air conditioner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960141A (en) * 1982-09-28 1984-04-06 Toupure Kk Air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587382A (en) * 1991-09-30 1993-04-06 Kubota Corp Atmospheric air introduction type air conditioner

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