JPS558546A - Automatic control apparatus for burning system - Google Patents

Automatic control apparatus for burning system

Info

Publication number
JPS558546A
JPS558546A JP8099578A JP8099578A JPS558546A JP S558546 A JPS558546 A JP S558546A JP 8099578 A JP8099578 A JP 8099578A JP 8099578 A JP8099578 A JP 8099578A JP S558546 A JPS558546 A JP S558546A
Authority
JP
Japan
Prior art keywords
output
differential pressure
feed
coal
mill differential
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
Application number
JP8099578A
Other languages
Japanese (ja)
Other versions
JPS6046338B2 (en
Inventor
Kazuyuki Sugaya
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8099578A priority Critical patent/JPS6046338B2/en
Publication of JPS558546A publication Critical patent/JPS558546A/en
Publication of JPS6046338B2 publication Critical patent/JPS6046338B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Feeding And Controlling Fuel (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE: To effect stabilized burning of a boiler by correcting a molar differential pressure based on a ratio of a mill differential pressure to a boiler output and by controlling the feed of coal fuel according to the corrected mill differential pressure.
CONSTITUTION: A control 7 computes output steam of a boiler 1 based on a control signal of a feed water control valve 3 and a control signal of a vane controller 10 and detected flow rate, pressure and temperature of detectors 4, 5, 6, and this output is inputted into a primary lag unit 19. A mill differential pressure detected by a mill differential detector 16 is inputted into a divider 20 and a multiplier 21. The ratio computed by the divider 20 exhibits a particle size of coal. The multiplier 21 multiplies the mill differential pressure by the output of the divider 20. The output of the multiplier 21 corresponds to substantial coal feed taking into account the particle size, which output is used as a feed back signal to a coal feed adjuster 18.
COPYRIGHT: (C)1980,JPO&Japio
JP8099578A 1978-07-05 1978-07-05 Combustion system automatic control device Expired JPS6046338B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8099578A JPS6046338B2 (en) 1978-07-05 1978-07-05 Combustion system automatic control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8099578A JPS6046338B2 (en) 1978-07-05 1978-07-05 Combustion system automatic control device

Publications (2)

Publication Number Publication Date
JPS558546A true JPS558546A (en) 1980-01-22
JPS6046338B2 JPS6046338B2 (en) 1985-10-15

Family

ID=13734067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8099578A Expired JPS6046338B2 (en) 1978-07-05 1978-07-05 Combustion system automatic control device

Country Status (1)

Country Link
JP (1) JPS6046338B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786916A (en) * 1980-11-19 1982-05-31 Babcock Hitachi Kk Controller for analysis of ground charcoal
JPS5932846U (en) * 1982-08-26 1984-02-29 バブコツク日立株式会社 Pulverized coal flow control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786916A (en) * 1980-11-19 1982-05-31 Babcock Hitachi Kk Controller for analysis of ground charcoal
JPS5932846U (en) * 1982-08-26 1984-02-29 バブコツク日立株式会社 Pulverized coal flow control device

Also Published As

Publication number Publication date
JPS6046338B2 (en) 1985-10-15

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