F22B21/02 - CPC Classification Index

ClassID:

155508 ⎘

F22B21/02 - CPC Classification

Classification description:

Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially straight water tubes

Sub-classes:

F22B21/04 » involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely 12
F22B21/12 » involving two or more upper drums and two or more lower drums, e.g. with crosswise-arranged water-tube sets in abutting connections with drums 1
F22B21/14 » involving a single upper drum and two or more lower drums 4
F22B21/18 » involving two or more upper drums and a single lower drum 1
F22B21/20 » involving sectional or subdivided headers in separate arrangement for each water-tube set 2

Recent Application in this class:

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2024-10-24

STEAM GENERATOR AND METHOD

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2021-09-23

System and methods for integration of concentrated solar steam generators to Rankine cycle power plants

20200056778

2020-02-20

System and methods for integration of concentrated solar steam generators to Rankine cycle power plants

20190093878

2019-03-28

Waste heat recovery boiler in producing glass beads

20180106474

2018-04-19

Superheater

20170355047

2017-12-14

System and method for assembling a heat exchanger

20170350587

2017-12-07

Hand held flow-through steam system

20170003017

2017-01-05

Process fired heater configuration

20160305408

2016-10-20

Method and device for preventing dry-out in a boiler of a tower solar concentration power plant

#10

20160178191

2016-06-23

Furnace of circulating fluidized bed boiler having variable cross-section water-cooled column

#11

20160161106

2016-06-09

Shell-and-tube apparatus for heat recovery from a hot process stream

#12

20140041601

2014-02-13

Steam generator

#13

20130306002

2013-11-21

Preventing tube failure in boilers

#14

20130284119

2013-10-31

Circulating fluidized bed boiler

#15

20130239909

2013-09-19

Arrangement structure suitable for inverted pulverized coal boiler with ultra-high steam temperature steam parameters

#16

20120024241

2012-02-02

Continuous evaporator

#17

20110315094

2011-12-29

Continuous Evaporator

#18

20110126781

2011-06-02

Boiler structure

#19

20090261591

2009-10-22

Solar steam generator

#20

20090084293

2009-04-02

Double wall extension

#21

20090078397

2009-03-26

Radiant coolers and methods for assembling same

#22

20090010821

2009-01-08

Tube bundle reactors with pressure fluid cooling

#23

20080308128

2008-12-18

AUTOMATED SYSTEM FOR WATERWALL CLEANING AND INSPECTION

#24

20080163792

2008-07-10

Preventing tube failure in boilers