GB1093890A - Improvements in or relating to the automatic control of burning processes - Google Patents

Improvements in or relating to the automatic control of burning processes

Info

Publication number
GB1093890A
GB1093890A GB1912966A GB1912966A GB1093890A GB 1093890 A GB1093890 A GB 1093890A GB 1912966 A GB1912966 A GB 1912966A GB 1912966 A GB1912966 A GB 1912966A GB 1093890 A GB1093890 A GB 1093890A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
furnace
furnace temperature
servomotor
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.)
Expired
Application number
GB1912966A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1912966A priority Critical patent/GB1093890A/en
Publication of GB1093890A publication Critical patent/GB1093890A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Incineration Of Waste (AREA)

Abstract

1,093,890. Automatic control of gas furnaces. A. BRECKA. May 2, 1966, No. 19129/66. Heading G3R. A specified electrical system automatically controls the pressure of gas supplied to a. furnace so as to maintain it at one or other of two values according to whether furnace temperature is above or below a predetermined temperature and thereby tend to maintain the predetermined furnace temperature. As described, deviations of the pressure of gas supplied to a furnace from a value selected by the setting of a member 11 on a rotary pressure responsive device 1 causes operation of one or other of two switches 9, 10 which control relays 4, 5 so that a servomotor 3 is run in the appropriate direction to restore the pressure to the selected value by adjustment of a gas supply valve 19 through gearing 18. When furnace temperature rises above a predetermined value, a pyrometer 20 causes operation of a changeover switch 12 so that, after a delay determined by a switch 13, servomotor 3 is operated to close valve 19 until gas pressure reaches and is maintained at a lower value determined by a member 15 operating a switch 14. When furnace temperature falls again, control by member 11 is automatically restored. Switches 7 and 8, operated by a member 6 coupled to valve 19, prevent further operation of servomotor 3 in the wrong sense when valve 19 is fully open or closed, and a warning light 16 is operated when the valve is fully open.
GB1912966A 1966-05-02 1966-05-02 Improvements in or relating to the automatic control of burning processes Expired GB1093890A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1912966A GB1093890A (en) 1966-05-02 1966-05-02 Improvements in or relating to the automatic control of burning processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1912966A GB1093890A (en) 1966-05-02 1966-05-02 Improvements in or relating to the automatic control of burning processes

Publications (1)

Publication Number Publication Date
GB1093890A true GB1093890A (en) 1967-12-06

Family

ID=10124236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1912966A Expired GB1093890A (en) 1966-05-02 1966-05-02 Improvements in or relating to the automatic control of burning processes

Country Status (1)

Country Link
GB (1) GB1093890A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181869A (en) * 1983-05-06 1987-04-29 Coherent Inc Pressure regulating system for lasers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181869A (en) * 1983-05-06 1987-04-29 Coherent Inc Pressure regulating system for lasers

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