GB678147A - Improvements in or relating to a forced draught apparatus - Google Patents

Improvements in or relating to a forced draught apparatus

Info

Publication number
GB678147A
GB678147A GB2960/47A GB296047A GB678147A GB 678147 A GB678147 A GB 678147A GB 2960/47 A GB2960/47 A GB 2960/47A GB 296047 A GB296047 A GB 296047A GB 678147 A GB678147 A GB 678147A
Authority
GB
United Kingdom
Prior art keywords
boiler
fan
unit
forced draught
secured
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
GB2960/47A
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
Publication of GB678147A publication Critical patent/GB678147A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L5/00—Blast-producing apparatus before the fire
    • F23L5/02—Arrangements of fans or blowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Special Wing (AREA)

Abstract

678,147. Forced draught apparatus. BUISKOOL, E. J., and JONG, A. DE. Jan. 30, 1947 [April 17, 1942], No. 2960/47. Class 51 (i). A motorized fan unit for supplying forced draught to boiler and other furnaces comprises a fan casing 6 provided with a gauge covered inlet 8, a motor 2 enclosed by a ring 3 secured to the casing by ribs 5, a screw fan 1 the blades of which are constructed according to the circulation principle of the aerofoil theory and which have a width decreasing towards ,their free ends, and a connecting duct 10 secured to the wall 9 of the boiler and provided with adjustable guide blades 12. A valve 13 controlling the outlet of the fan unit is actuated by a handle 26 through a crank arm 14 and linkage 16, and ash gutters or shoots are provided above each unit as fixed in front of the ash boxes of a Lancashire boiler, Fig. 1 (not shown). Other modifications show the application of the invention to an oil fired Scotch boiler with the Howden draught system and a single unit applied to a double-flued boiler Figs. 3 and 7 (not shown). The Specification as open to inspection under Sect 91, comprises the incorporation with the fan of a number of short-circuiting conduits, each provided with a controlling valve dividing the air supplied by the fan 'into adjustable ratios, and also a further modification in which the controlling valve is combined with mechanism cutting off the air supply when opening the boiler fire door. The Specification as open to inspection under Sect. 91, comprises also the subject-matter of Specification 678,176, [Group XI]. This subject-matter does not appear in the Specification as accepted.
GB2960/47A 1942-04-17 1947-01-30 Improvements in or relating to a forced draught apparatus Expired GB678147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL678147X 1942-04-17

Publications (1)

Publication Number Publication Date
GB678147A true GB678147A (en) 1952-08-27

Family

ID=19802350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2960/47A Expired GB678147A (en) 1942-04-17 1947-01-30 Improvements in or relating to a forced draught apparatus

Country Status (1)

Country Link
GB (1) GB678147A (en)

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