F22D1/00 - CPC Classification Index

ClassID:

155740 ⎘

F22D1/00 - CPC Classification

Classification description:

Feed-water heaters, i.e. economisers or like preheaters

Sub-classes:

F22D1/003 » {Feed-water heater systems } 58
F22D1/006 » {with heating tubes } 3
F22D1/02 » with water tubes arranged in the boiler furnace, fire tubes, or flue ways 43
F22D1/16 » with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways 5
F22D1/24 » with fire tubes or flue ways traversing feed-water vessels 3
F22D1/26 » with means, other than tubes, to separate water and heating medium, e.g. bulk heaters without internal flues or tubes, jacketted smoke-boxes or flue or flues 0
F22D1/28 » for direct heat transfer, e.g. by mixing water and steam 12
F22D1/32 » arranged to be heated by steam, e.g. bled from turbines 32
F22D1/36 » Water and air preheating systems 22
F22D1/40 » Combinations of exhaust-steam and smoke-gas preheaters 3
F22D1/42 » specially adapted for locomotives 0
F22D1/50 » incorporating thermal de-aeration of feed-water 11

Recent Application in this class:

20250012462

Condensing, Ultra-Low NOx Gas-Fired Humidifier

20220404041

Condensing, ultra-low NOx gas-fired humidifier

20190383177

Thermal energy recovery device and startup operation method for the same

20180347806

Method and apparatus for recovery of heat from bulk solids

20170284378

Method for operating a solar thermal power system with an economizer recirculation line

20160245127

Heat exchanging system and method for a heat recovery steam generator

20140083694

Methods and Systems for Providing Steam

20120272650

Recovery system using fluid coupling on power generating system

20100322605

SEGMENTED RAPID HEATING OF FLUID

20100276124

Feedwater debris trap