SE315602B - - Google Patents

Info

Publication number
SE315602B
SE315602B SE1539965A SE1539965A SE315602B SE 315602 B SE315602 B SE 315602B SE 1539965 A SE1539965 A SE 1539965A SE 1539965 A SE1539965 A SE 1539965A SE 315602 B SE315602 B SE 315602B
Authority
SE
Sweden
Prior art keywords
duct
steam
valve
decrease
furnace
Prior art date
Application number
SE1539965A
Inventor
J Koel
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of SE315602B publication Critical patent/SE315602B/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/007—Control systems for waste heat boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/36—Water and air preheating systems

Abstract

1,084,896. Regulating waste heat boilers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 29. 1965 [Nov. 30, 1964],. No. 50590/65. Headings F4A and F4B. Waste gases from a furnace 1 used for heating a medium such as oil in pipes 2. flow out through duct 13 to waste heat boiler 14 having an auxiliary burner 35 and containing an economizer 15 evaporating sections 20, 25 and superheater 28. Feed pump 17 forces water through duct 16, economizer 15 and duct 18 to the steam-water separator 19, from whence circulating pump 22 forces it through duet 21 and the evaporating sections 20, 25, and duct 26 to the steam-water separator 19, the steam passing via duct 27 to superheater 28 and outlet duct 29. Increase or decrease in steam demand as measured by manometer 30 in line 29, is met by opening or closing valve 23, in duct 21 leading to the evaporating section 20, through the controller 31. This reduces or increases the hot water flow to air heater 32 in parallel with valve 23, disposed in the combustion air inlet duet 6 to the gas or oil fired furnace 1 so reducing or increasing the degree of air preheating and consequently the heat input to the furnace 1. The resultant drop or rise in the outlet temperature of the medium being heated as measured by element 9 causes controller 10 to actuate valve 8 in fuel supply line 7 to increase or decrease the fuel supply to furnace 1 to maintain the heated medium outlet temperature constant. The supply valve 8 may also be actuated by controller 12 under the influence of variations in the inlet combustion air temperature measured by element 11. The increase or decrease in the fuel supply causes an increase or decrease in the volume of waste gases passing to boiler 14, and so provides bigger or smaller heat imput to the boiler to meet the variation in steam demand. In modifications (Figs. 2 and 3, not shown) the valve controlling the hot water flow through the air heater is disposed in the line to the air heater, the return line from the air heater bypassing the evaporating sections.
SE1539965A 1964-11-30 1965-11-29 SE315602B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6413884A NL146277B (en) 1964-11-30 1964-11-30 DEVICE FOR THE PRODUCTION OF STEAM BY MEANS OF GASES FROM AN INDUSTRIAL OVEN.

Publications (1)

Publication Number Publication Date
SE315602B true SE315602B (en) 1969-10-06

Family

ID=19791538

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1539965A SE315602B (en) 1964-11-30 1965-11-29

Country Status (9)

Country Link
BE (1) BE673033A (en)
CH (1) CH450456A (en)
DE (1) DE1526268B2 (en)
DK (1) DK116598B (en)
ES (1) ES320125A1 (en)
FR (1) FR1459471A (en)
GB (1) GB1084896A (en)
NL (1) NL146277B (en)
SE (1) SE315602B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411203B (en) * 2013-05-24 2015-03-04 山东英电节能科技有限公司 Method and device for carrying out gradient utilization on boiler flue gas waste heat to improve efficiency of thermal power unit
CN106288835A (en) * 2016-10-26 2017-01-04 山东裕得金属制品有限公司 Hot-galvanized cauldron waste heat boiler

Also Published As

Publication number Publication date
DE1526268B2 (en) 1974-05-30
FR1459471A (en) 1966-11-18
NL6413884A (en) 1966-05-31
BE673033A (en) 1966-05-31
DK116598B (en) 1970-01-26
DE1526268A1 (en) 1969-12-18
CH450456A (en) 1968-01-31
NL146277B (en) 1975-06-16
GB1084896A (en) 1967-09-27
ES320125A1 (en) 1966-09-01

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