ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
F22B0029080000 operating with fixed point of final state of complete evaporation 1
F22B0029100000 operating with sliding point of final state of complete evaporation 1
F22B0029120000 operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers 1
F22B0031000000 Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus (steam generation characterised by heating method F22B0001000000; combustion apparatus per seF23) 1
F22B0031020000 Installation of water-tube boilers in chimneys, e.g. in converter chimneys 1
F22B0031040000 Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively 1
F22B0031060000 Installation of emergency heat supply 1
F22B0031080000 Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion 1
F22B0033000000 Steam-generation plants; Control systems 1
F22B0033000000 Steam-generation plants, e.g. comprising steam boilers of different types in mutual association (arrangements or dispositions of steam-generation plants in marine vessels B63H0021000000) 1
F22B0033020000 Combinations of boilers having a single combustion apparatus in common 1
F22B0033040000 of boilers of furnace-tube type with boilers of water-tube type 1
F22B0033060000 of boilers of furnace-tube type with boilers of fire-tube type 1
F22B0033080000 of boilers of water-tube type with boilers of fire-tube type 1
F22B0033100000 of two or more superposed boilers with separate water volumes and operating with two or more separate water levels 1