F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
LIGHTING; HEATING
 F22
STEAM GENERATION (chemical or physical apparatus for generating gases B01J; chemical generation of gas, e.g. under pressure, Section C; removal of combustion products or residues, e.g. cleaning of the combustion contaminated surfaces of tubes of boilers, F23J; generating combustion products of high pressure or high velocity F23R; water heaters not for steam generation F24H, F28; cleaning of internal or external surfaces of heat-transfer conduits, e.g. water tubes of boilers, F28G)
 F22

Note(s)

In this class, the following term is used with the meaning indicated:

  • "steam" covers also other condensable vapours, e.g. mercury, diphenyl, diphenyl oxide.

 F22G
SUPERHEATING OF STEAM (steam-separating arrangements in boilers F22B 37/26)
 F22G 1/00
Steam superheating characterised by heating method (exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom F24J)
 F22G 1/02
·  with heat supply by hot flue gases from the furnace of the steam boiler
 F22G 1/04
·  ·  by diverting flow or hot flue gases to separate superheaters operating in reheating cycle, e.g. for reheating steam between a high-pressure turbine stage and an intermediate turbine stage
 F22G 1/06
·  with heat supply predominantly by radiation
 F22G 1/08
·  ·  from heated brickwork or the like
 F22G 1/10
·  with provision for superheating by throttling
 F22G 1/12
·  by mixing steam with furnace gases or other combustion products
 F22G 1/14
·  using heat generated by chemical reactions
 F22G 1/16
·  by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
 F22G 3/00
Steam superheaters characterised by constructional features; Details or component parts thereof (general aspects of enclosed heat-exchangers F28D)
 F22G 5/00
Controlling superheat temperature (control systems for steam boilers F22B; regulating or controlling in general G05)
 F22G 5/02
·  Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners
 F22G 5/04
·  by regulating flue gas flow, e.g. by proportioning or diverting
 F22G 5/06
·  by recirculating flue gases
 F22G 5/08
·  ·  preventing furnace gas backflow through recirculating fan
 F22G 5/10
·  by displacing superheater sections
 F22G 5/12
·  by attemperating the superheated steam, e.g. by injected water sprays (spray-mixers B01F 5/18)
 F22G 5/14
·  ·  by live steam
 F22G 5/16
·  by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger
 F22G 5/18
·  by by-passing steam around superheater sections
 F22G 5/20
·  by combined controlling procedures
 F22G 7/00
Steam superheaters characterised by location, arrangement, or disposition
 F22G 7/02
·  in fire tubes
 F22G 7/04
·  in jackets around fire tubes
 F22G 7/06
·  in furnace tubes
 F22G 7/08
·  in fire-boxes
 F22G 7/10
·  in smoke-boxes
 F22G 7/12
·  in flues
 F22G 7/14
·  in water-tube boilers, e.g. between banks of water tubes