F22B   1/00  \	0	0	3L031	F22B   1/00	181	ǮˡηħȯˡΣ	Methods of steam generation characterised by form of heating method
F22B   1/02  \	1	1	3L031	F22B   1/02	30	ǮΤǮ̤Ѥˤ	by exploitation of the heat content of hot heat carriers
F22B   1/02  A	1	0	3L031	F22B   1/02	386	ǮΤήưˤ	The heat carrier being a fluidised bed
F22B   1/02  B	1	1	3L031	F22B   1/02	321	žˡˡ	Operation and control methods
F22B   1/02  C	1	1	3L031	F22B   1/02	326	¤	Constructional details
F22B   1/02  Z	1	0	3L031	F22B   1/02	134	¾Τ	Others
F22B   1/04  \	2	2	3L031	F22B   1/04	110	ǮΤǮ饰ǮޤǮǤΡ㡥Ŵ	the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
F22B   1/06  \	2	2	3L031	F22B   1/06	2	ǮΤͻƤΡͻ°㡥ǮãΤȤƤΰλ	the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
F22B   1/06  A	2	0	3L031	F22B   1/06	32	ʥȥꥦѷ®ϧǮȤ	Heat source being a sodium-cooling type fast-breeder reactor
F22B   1/06  B	2	1	3L031	F22B   1/06	22	ħ	characterised by control
F22B   1/06  C	2	2	3L031	F22B   1/06	28	ʥȥꥦϤ	operating sodium systems
F22B   1/06  D	2	2	3L031	F22B   1/06	47	ǮηϤ	operating carrier systems to be heated
F22B   1/06  E	2	2	3L031	F22B   1/06	13	ʥȥꥦϤǮηϤȤ򶦤	operating both sodium systems and heated-carrier systems
F22B   1/06  F	2	1	3L031	F22B   1/06	161	¤ħ	characterised by construction
F22B   1/06  G	2	2	3L031	F22B   1/06	122	ʥȥꥦݿȿɻ	Preventing accidents caused by sodium and water reaction
F22B   1/06  H	2	3	3L031	F22B   1/06	188	Ǯϴ¡̴ήư경	Relieving thermal stress including flow stabilisation
F22B   1/06  J	2	3	3L031	F22B   1/06	95	ϳ̸	Detecting tube leakage
F22B   1/06  K	2	2	3L031	F22B   1/06	57	Ǯǽ	Improving heat transfer performance
F22B   1/06  L	2	2	3L031	F22B   1/06	72	֤ΥѥȲ	Miniaturising arrangements
F22B   1/06  Z	2	0	3L031	F22B   1/06	30	¾Τ	Others
F22B   1/08  \	2	2	3L031	F22B   1/08	163	ǮΤǤ	the heat carrier being steam
F22B   1/10  \	3	3	3L031	F22B   1/10	18	Ǯ狼Фˤ	released from heat accumulators
F22B   1/12  \	3	3	3L031	F22B   1/12	7	Ūʼˤä	produced by an indirect cyclic process
F22B   1/14  \	3	3	3L031	F22B   1/14	36	Х륯ޤʮ̸οľܿ	coming in direct contact with water in bulk or in sprays
F22B   1/16  \	2	2	3L031	F22B   1/16	7	ǮΤǮΤޤǮ㡥ѱաѾǤ	the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour
F22B   1/16  A	2	0	3L031	F22B   1/16	59	ð巿ϧǮȤ	The heat source being a pressurised water reactor
F22B   1/16  B	2	1	3L031	F22B   1/16	75	ħ	characterised by controlling
F22B   1/16  C	2	1	3L031	F22B   1/16	299	ʡħ	characterised by component parts or details
F22B   1/16  Z	2	0	3L031	F22B   1/16	283	¾Τ	Others
F22B   1/18  \	2	2	3L031	F22B   1/18	65	ǮΤǮ㡥ǳؤӵΤȤѥǤΡΣ	the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
F22B   1/18  A	2	0	3L021	F22B   1/18	102		Control
F22B   1/18  B	2	1	3L021	F22B   1/18	287	ǮϤ	operating hot gas systems
F22B   1/18  C	2	1	3L021	F22B   1/18	398	ǮηϤ	operating heated-carrier systems
F22B   1/18  D	2	0	3L031	F22B   1/18	375	ȯץϥƥ	Steam-generation plants or systems
F22B   1/18  E	2	1	3L031	F22B   1/18	604	Хȯťץ	for combined power-generation plants
F22B   1/18  F	2	1	3L031	F22B   1/18	121	°¤ϧ	for metal-producing furnaces
F22B   1/18  G	2	1	3L031	F22B   1/18	387	ѴʪƵϧ	for waste incinerators
F22B   1/18  H	2	1	3L031	F22B   1/18	91	úǷϲʪȿϧ	for hydrocarbon compound reactors
F22B   1/18  R	2	1	3L031	F22B   1/18	287	ǳ	for internal-combustion engines
F22B   1/18  S	2	1	3L031	F22B   1/18	29	Ⱦץ	for cement baking plants
F22B   1/18  L	2	1	3L031	F22B   1/18	47	Ǯϴ	Relieving thermal stress
F22B   1/18  M	2	1	3L031	F22B   1/18	324	忩ɻϥݥɻ	Preventing corrosion or scale adherence
F22B   1/18  N	2	1	3L031	F22B   1/18	92	ѥȲ	Miniaturisation
F22B   1/18  P	2	1	3L031	F22B   1/18	87	ӥưк	Measures against fluctuation of exhaust gas-supplying amount
F22B   1/18  J	2	0	3L031	F22B   1/18	340	Ϻ	Component parts or details
F22B   1/18  K	2	1	3L031	F22B   1/18	402	Ǯ	Heat exchange parts
F22B   1/18  Z	2	0	3L031	F22B   1/18	281	¾Τ	Others
F22B   1/20  \	1	1	3L031	F22B   1/20	189	ۼϱФ줿ǮѤΡܥ	using heat evolved in a solution absorbing steam; Soda steam boilers
F22B   1/22  \	1	1	3L031	F22B   1/22	10	¼Ū絤ʾΰϤˤǳƤѤ	using combustion under pressure substantially exceeding atmospheric pressure
F22B   1/24  \	2	2	3L031	F22B   1/24	78	ðǳƾܥ顤㡥̵ܶܥǳƼǮˤäƺư	Pressure-fired steam boilers, e.g. using turbo air compressors actuated by hot gases from boiler furnace
F22B   1/26  \	2	2	3L031	F22B   1/26	46	ǳƷξܥ顤ʤб꤬ȯ˰ϤޤƤޤͤ	Steam boilers of submerged-flame type, i.e. the flame being surrounded by, or impinging on, the water to be vaporised
F22B   1/28  \	1	1	3L031	F22B   1/28	87	ŵǮܥ	in boilers heated electrically
F22B   1/28  A	1	0	3L031	F22B   1/28	304	ݥ४ݥ֥	for steam ovens
F22B   1/28  B	1	0	3L031	F22B   1/28	95		for cosmetic purposes
F22B   1/28  Z	1	0	3L031	F22B   1/28	779	¾Τ	Others
F22B   1/30  \	2	2	3L031	F22B   1/30	189	Ŷ˥ܥ	Electrode boilers
F22B   3/00  \	0	0	3L031	F22B   3/00	359	¾ξȯˡΥ֥饹¾Υ롼פʬवʤܥ	Other methods of steam generation; Steam boilers not provided for in other groups of this subclass
F22B   3/02  \	1	1	3L031	F22B   3/02	189	ʳκưΤλѤޤ	involving the use of working media other than water
F22B   3/04  \	1	1	3L031	F22B   3/04	328	ǹⰵǮΰϤ㲼뤳ȤˤΡ㡥졼Σ	by drop in pressure of high-pressure hot water within pressure-reducing chambers, e.g. in accumulators
F22B   3/06  \	1	1	3L031	F22B   3/06	20	ŪѴˤΡ㡥ưͥ륮Ǯͥ륮Ѵ	by transformation of mechanical, e.g. kinetic, energy into heat energy
F22B   3/08  \	1	1	3L031	F22B   3/08	23	׳ޤĶ׳ϤΤȤˤ	at critical or supercritical pressure values
F22B   5/00  \	0	0	3L032	F22B   5/00	84	ɥ෿ξܥ顤ʤ˲ϧޤϱɤʤΤǳƥȳɽ̤ܿ	Steam boilers of drum type, i.e. without internal furnace or fire tubes, the boiler body being contacted externally by flue gas
F22B   5/02  \	1	1	3L032	F22B   5/02	23	γ¦ɤͭ	with auxiliary water tubes outside the boiler body
F22B   5/04  \	1	1	3L032	F22B   5/04	15	ʬ°ʪΣ	Component parts thereof; Accessories therefor
F22B   7/00  \	0	0	3L032	F22B   7/00	83	ϧξܥ顤ʤǳǳƤߤ줿ܤޤϤʾϧǹԤʤ	Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
F22B   7/02  \	1	1	3L032	F22B   7/02	82	ɤʤ	without auxiliary water tubes
F22B   7/04  \	1	1	3L032	F22B   7/04	143	ɤ	with auxiliary water tubes
F22B   7/06  \	2	2	3L032	F22B   7/06	123	ϧ˲Ū󤵤Ƥ	inside the furnace tube in transverse arrangement
F22B   7/08  \	2	2	3L032	F22B   7/08	107	ϧ˽Ĥ󤵤Ƥ	inside the furnace tube in longitudinal arrangement
F22B   7/10  \	2	2	3L032	F22B   7/10	16	γˤ	outside the boiler body
F22B   7/12  \	1	1	3L032	F22B   7/12	233	ɤΡɴ󤻼ǳƥεž򵯤	with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
F22B   7/14  \	1	1	3L032	F22B   7/14	67	ɤɤξͭ	with both auxiliary water tubes and auxiliary fire tubes
F22B   7/16  \	1	1	3L032	F22B   7/16	51	ʬ°ʪ㡥ƥܥϢ	Component parts thereof; Accessories therefor, e.g. stay-bolt connections
F22B   7/18  \	2	2	3L032	F22B   7/18	15	ƻɹ¤ǳƥɴ󤻼	Walling of flues; Flue-gas header boxes
F22B   7/20  \	2	2	3L032	F22B   7/20	40	ϧ	Furnace tubes
F22B   9/00  \	0	0	3L032	F22B   9/00	3	ɷξܥ顤ʤǳƼǳƥߤ줿ɷ̤äƴΤγήΡΣ	Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
F22B   9/02  \	1	1	3L032	F22B   9/02	3	Τľ㡥ǳƼξ֤ΡΣ	the boiler body being disposed upright, e.g. above the combustion chamber
F22B   9/04  \	2	2	3L032	F22B   9/04	102	ɤΩˤ줿ΡΣ	the fire tubes being in upright arrangement
F22B   9/06  \	3	3	3L032	F22B   9/06	12	ɴȢ󤬱ƻήεž򵯤ΡΣ	Arrangement of header boxes providing for return diversion of flue gas flow
F22B   9/08  \	2	2	3L032	F22B   9/08	13	ɤʿ󤵤ΡΣ	the fire tubes being in horizontal arrangement
F22B   9/10  \	1	1	3L032	F22B   9/10	1	Τ¼Ū˿ʿ㡥ǳƼ¦ɡ󤵤ΡΣ	the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber
F22B   9/12  \	2	2	3L032	F22B   9/12	63	ɤ¼Ū˿ʿ֤ΡΣ	the fire tubes being in substantially-horizontal arrangement
F22B   9/14  \	3	3	3L032	F22B   9/14	14	ɴ󤻼󤬱ƻήεž򵯤ΡΣ	Arrangement of header boxes providing for return diversion of flue gas flow
F22B   9/16  \	1	1	3L032	F22B   9/16	0	Τ˷ФƲ֤줿ɤͭΡΣ	the boiler body containing fire tubes disposed crosswise in inclined upward arrangement
F22B   9/18  \	1	1	3L032	F22B   9/18	21	ʬ°ʪ㡥ƥܥϢΣ	Component parts thereof; Accessories therefor, e.g. stay-bolt connections
F22B  11/00  \	0	0	3L032	F22B  11/00	2	ɷȿɷȤ߹蘆줿ܥ顤ʤɷξܥ餬ɤͭ	Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers of fire-tube type having auxiliary water tubes
F22B  11/02  \	1	1	3L032	F22B  11/02	25	ɤľ󤵤	the fire tubes being in upright arrangement
F22B  11/04  \	1	1	3L032	F22B  11/04	54	ɤʿ󤵤	the fire tubes being in horizontal arrangement
F22B  13/00  \	0	0	3L032	F22B  13/00	72	мξܥ顤ʤϧӤ³дɤޤϱɤξ֤ƤܥΣ	Steam boilers of fire-box type, i.e. boilers where both combustion chambers and subsequent flues or fire tubes are arranged within the boiler body
F22B  13/02  \	1	1	3L032	F22B  13/02	27	Τľ֤Ƹ֤Ǥդ	mounted in fixed position with the boiler body disposed upright
F22B  13/04  \	1	1	3L032	F22B  13/04	58	Τ¼Ū˿ʿ֤Ƹ֤Ǥդ	mounted in fixed position with the boiler body disposed substantially horizontally
F22B  13/06  \	1	1	3L032	F22B  13/06	0	Ͼ屿žؼ֡ؼ֡ޤϵؼ֥ܥ	Locomobile, traction-engine, steam-roller, or locomotive boilers
F22B  13/08  \	2	2	3L032	F22B  13/08	8	мɤʤ	without auxiliary water tubes inside the fire-box
F22B  13/10  \	2	2	3L032	F22B  13/10	2	мɤ	with auxiliary water tubes inside the fire-box
F22B  13/12  \	3	3	3L032	F22B  13/12	24	мɤ¤٤	the auxiliary water tubes lining the fire-box
F22B  13/14  \	1	1	3L032	F22B  13/14	6	ʬ°ʪ	Component parts thereof; Accessories therefor
F22B  13/16  \	2	2	3L032	F22B  13/16	0	ƥܥϢ롤㡥Ϣ	Stay-bolt connections, e.g. rigid connections
F22B  13/18  \	3	3	3L032	F22B  13/18	1	̼Ϣ롤㡥ܡ롦åȷ	Flexible connections, e.g. of ball-and-socket type
F22B  15/00  \	0	0	3L032	F22B  15/00	65	ʿοɥܥ顤ʤɤʿ󤵤Ƥ	Water-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally
F22B  17/00  \	0	0	3L032	F22B  17/00	21	ʿзοɥܥ顤ʤȤʿ̤Ф¿ФƤ	Water-tube boilers of horizontally-inclined type i.e. the water-tube sets being inclined slightly with respect to the horizontal plane
F22B  17/02  \	1	1	3L032	F22B  17/02	45	٤ƤȤ˶̤룲Ĥδɴ󤻼ͤ³줿ȤȤ߾夲줿Ρ㡥ʿʴɴ󤻼ͭ	built-up from water-tube sets in abutting connection with two header boxes in common for all sets e.g. with flat header boxes
F22B  17/04  \	2	2	3L032	F22B  17/04	17	Ȥȿ˷ФƤΡ㡥򺹤褦	the water-tube sets being inclined in opposite directions e.g. crosswise
F22B  17/06  \	2	2	3L032	F22B  17/06	2	ɤѤʤƶʤäƤ	the water-tube sets being bent angularly
F22B  17/08  \	2	2	3L032	F22B  17/08	10	ɤ֤Ƥ	the water-tube sets being curved
F22B  17/10  \	1	1	3L032	F22B  17/10	57	ΤΤȤȤˣߤ줿ʬŪɴ󤻼ͤ³줿ȤȤ߾夲줿ΡʤܥޤϹ⤵ˤ錄äʣʬߤ줿ɴ󤻤ͭ	built-up from water-tube sets in abutting connection with two sectional headers each for every set i.e. with headers in a number of sections across the width or height of the boiler
F22B  17/12  \	2	2	3L032	F22B  17/12	2	ʬŪɴ󤻤ľˤޤϼ¼Ū˿ľ֤줿	the sectional headers being in vertical or substantially-vertical arrangement
F22B  17/14  \	2	2	3L032	F22B  17/14	0	ʬŪɴ󤻤ʿˤޤϼ¼Ū˿ʿ֤줿	the sectional headers being in horizontal or substantially-horizontal arrangement
F22B  17/16  \	1	1	3L032	F22B  17/16	2	ʬ°ʪ	Component parts thereof; Accessories therefor
F22B  17/18  \	2	2	3L032	F22B  17/18	3	ɴ󤻼ʬŪɴ	Header boxes; Sectional headers
F22B  19/00  \	0	0	3L032	F22B  19/00	52	ʿзȿľȤ߹蘆줿ɥܥ顤ʤʿзοɥܥ餬ľޤϼ¼Ū˿ľ󤵤줿ɤͭ	Water-tube boilers of combined horizontally-inclined type and vertical type, i.e. water-tube boilers of horizontally-inclined type having auxiliary water-tube sets in vertical or substantially-vertical arrangement
F22B  21/00  \	0	0	3L032	F22B  21/00	48	ľޤϱԤзοɥܥ顤ʤȤľޤϼ¼Ū˿ľ󤵤줿	Water-tube boilers of vertical or steeply-inclined type i.e. the water-tube sets being arranged vertically or substantially vertically
F22B  21/02  \	1	1	3L032	F22B  21/02	85	¼Ū˿äʿɤȤ߾夲줿	built-up from substantially-straight water tubes
F22B  21/04  \	2	2	3L032	F22B  21/04	464	ĤξɥपӣĤβɥޤΡ㡥ɥबŪ֤	involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely
F22B  21/06  \	3	3	3L032	F22B  21/06	75	ɤľȤˤʤ褦󤵤Ρ㡥ľΥɥͤ³	the water tubes being arranged annularly in sets e.g. in abutting connection with drums of annular shape
F22B  21/06  A	3	0	3L032	F22B  21/06	297	ľʣΤ	the annular arrangement consisting of multiple lines
F22B  21/06  Z	3	0	3L032	F22B  21/06	271	¾Τ	Others
F22B  21/08  \	3	3	3L032	F22B  21/08	17	ɤʬ褦󤵤ƥ롼פޤϽˤʤäƤΡ㡥üޤ֤Ƥ	the water tubes being arranged sectionally in groups or in banks e.g. bent over at their ends
F22B  21/10  \	3	3	3L032	F22B  21/10	8	ɤߤ㤤󤵤	the water tubes being arranged in staggered rows
F22B  21/12  \	2	2	3L032	F22B  21/12	72	ʾξɥपӣʾβɥबΡ㡥ɥͤ³줿󤹤Ȥͭ	involving two or more upper drums and two or more lower drums e.g. with crosswise-arranged water-tube sets in abutting connection with drums
F22B  21/14  \	2	2	3L032	F22B  21/14	80	Ĥξɥपӣʾβɥब	involving a single upper drum and two or more lower drums
F22B  21/16  \	3	3	3L032	F22B  21/16	9	ɥबʤɤˤߤϢ뤵	the lower drums being interconnected by further water tubes
F22B  21/18  \	2	2	3L032	F22B  21/18	30	ʾξɥपӣĤβɥब	involving two or more upper drums and a single lower drum
F22B  21/20  \	2	2	3L032	F22B  21/20	77	ΤΤοɥåȤ˸̤󤵤줿ʬŪʤޤʬ䤵줿ɴ󤻤	involving sectional or subdivided headers in separate arrangement for each water-tube set
F22B  21/22  \	1	1	3L032	F22B  21/22	21	ľɤޤϼ¼Ūľɰʳοɤʤ	built-up from water tubes of form other than straight or substantially straight
F22B  21/24  \	2	2	3L032	F22B  21/24	88	ʤ꤯ͤä˶ʤ	bent in serpentine or sinuous form
F22B  21/26  \	2	2	3L032	F22B  21/26	143	˶ʤʤˤ줿	bent helically, i.e. coiled
F22B  21/28  \	2	2	3L032	F22B  21/28	26	˶ʤ	bent spirally
F22B  21/30  \	2	2	3L032	F22B  21/30	66	ջ˶ʤ	bent in U-loop form
F22B  21/32  \	3	3	3L032	F22B  21/32	23	Ωɴ󤻤ޤϵ夬äɤͤ碌³ƿʿ󤵤줿	disposed horizontally in abutting connection with upright headers or rising water mains
F22B  21/34  \	1	1	3L032	F22B  21/34	118	ǳƼϤѥ֤ͥ˥롼ײ줿ɤˤȤΩƤ줿Ρʤͥܥ	built-up from water tubes grouped in panel form surrounding the combustion chamber i.e. radiation boilers
F22B  21/36  \	2	2	3L032	F22B  21/36	73	ǳƼξüߤ줿ɥޤϴɴ󤻤	involving an upper drum or headers mounted at the top of the combustion chamber
F22B  21/38  \	2	2	3L032	F22B  21/38	11	ʬ㡥ץϥּѥͥ	Component parts thereof e.g. prefabricated panels
F22B  21/40  \	1	1	3L032	F22B  21/40	12	Ū˿ľĹߤɤˤȤΩƤΡʤܥ	built-up from water tubes arranged in a comparatively long vertical shaft, i.e. tower boilers
F22B  23/00  \	0	0	3L032	F22B  23/00	3	ֳ֤äƣŤȤ줿ɤͭ꥿󷿤οɤüǥܥɥޤϥإåȢͤ³Ƥʤ륻åȤȤ߾夲줿ʤüĺ줿֤줿ɤͭեɴɤȤ߾夲줿ɥܥΣ	Water-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilateral abutting connection with a boiler drum or with a header box, i.e. built-up from Field water tubes comprising an inner tube arranged within an outer unilaterally-closed tube [2006.01]
F22B  23/02  \	1	1	3L032	F22B  23/02	10	ɡʤեɴɡΥåȤʿޤϼ¼Ū˿ʿǤ	the water-tube, i.e. Field-tube, sets being horizontal or substantially horizontal
F22B  23/04  \	1	1	3L032	F22B  23/04	34	ɡʤեɴɡΥåȤľޤϼ¼Ū˿ľǤ	the water-tube, i.e. Field-tube, sets being vertical or substantially vertical
F22B  23/06  \	1	1	3L032	F22B  23/06	0	ιʡ㡥եɿɡΣ	Component parts thereof, e.g. Field water tubes
F22B  25/00  \	0	0	3L032	F22B  25/00	36	ɤ̤äƱӤ褦֤줿ƻɡޤϱɡͭɤΥåȤȤ߾夲줿ɥܥ	Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes
F22B  27/00  \	0	0	3L032	F22B  27/00	50	ִ֤ޤϥեå弰ܥ	Instantaneous or flash steam boilers
F22B  27/02  \	1	1	3L032	F22B  27/02	5	ɤȤ߾夲줿	built-up from fire tubes
F22B  27/04  \	1	1	3L032	F22B  27/04	7	ɤȤ߾夲줿Ρʣƣ£ƣ£ͥ	built-up from water tubes(F22B27/12 to F22B27/16 take precedence)
F22B  27/06  \	2	2	3L032	F22B  27/06	0	عԤޤ϶ʤ꤯ͤä֤˶ʤ줿	bent in serpentine or sinuous form
F22B  27/08  \	2	2	3L032	F22B  27/08	5	˶ʤ줿ʤˤ줿	bent helically, i.e. coiled
F22B  27/10  \	2	2	3L032	F22B  27/10	0	˶ʤ줿	bent spirally
F22B  27/12  \	1	1	3L032	F22B  27/12	51	žǮǡ㡥ȤΩΡȤ߾夲줿	built-up from rotary heat-exchange elements, e.g. from tube assemblies
F22B  27/14  \	1	1	3L032	F22B  27/14	15	Ǯݻɤ̩ļߤ줿ǮǤȤ߾夲줿	built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls
F22B  27/16  \	1	1	3L032	F22B  27/16	160	ⲹǮǤξˤޤˡ㡥ɤˡγҤʮ̸ޤ륹ץ쥤Υ뤬	involving spray nozzles for sprinkling or injecting water particles on to or into hot heat-exchange elements, e.g. into tubes
F22B  29/00  \	0	0	3L032	F22B  29/00	21	ήưξܥ	Steam boilers of forced-flow type
F22B  29/02  \	1	1	3L032	F22B  29/02	74	۴ķΣ	of forced-circulation type
F22B  29/04  \	1	1	3L032	F22B  29/04	13	Ȥ߹碌۴ķʤǮȤδ֤źˤή۴ĤղŪˡ㡥ŪʰϿˤ롤ˤä礵	of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily
F22B  29/06  \	1	1	3L032	F22B  29/06	217	ήʤɤΰüε夬¾üǮȤӽФΡ㰵ӹⰵܥȤ߹碌ήưܥƣ£ˡΣ	of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes  (combined low- and high-pressure boilers of forced-flow type F22B 33/16)
F22B  29/08  \	2	2	3L032	F22B  29/08	6	ʾȯκǽ֤ꤵƱž	operating with fixed point of final state of complete evaporation
F22B  29/10  \	2	2	3L032	F22B  29/10	51	ʾȯκǽ֤ưƱž	operating with sliding point of final state of complete evaporation
F22B  29/12  \	2	2	3L032	F22B  29/12	16	ưٱưδֺƽ۴ĤäƱžΡ㡥ܥ	operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers
F22B  31/00  \	0	0	3L032	F22B  31/00	53	ǳ֤Τդˤܥ鹽¤ޤϴɷνǳ֤ޤ֡Σ	Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus
F22B  31/00  A	0	0	3L032	F22B  31/00	192	Сݥʤϼդ	Arrangements or attachment of] burners
F22B  31/00  B	0	0	3L032	F22B  31/00	127		Air-supply arrangements
F22B  31/00  C	0	0	3L032	F22B  31/00	119	ǳӥκƽ۴	Recirculating arrangements for combusted exhaust gas
F22B  31/00  Z	0	0	3L032	F22B  31/00	170	¾Τ	Others
F22B  31/02  \	1	1	3L032	F22B  31/02	0	οɥܥΤդ㡥žϧα	Installation of water-tube boilers in chimneys, e.g. in converter chimneys
F22B  31/04  \	1	1	3L032	F22B  31/04	84	ĤޤϤʾǳ֤ˤǮ㡥ܥ餪ӲǮѤˤ줾ʬΥ줿ǳ	Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
F22B  31/06  \	2	2	3L032	F22B  31/06	1	۵޲Ǯ	Installation of emergency heat supply
F22B  31/08  \	1	1	3L032	F22B  31/08	198	ǳѲǮΤΥܥ֤ޤǮ֤Τդ	Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
F22B  33/00  \	0	0	3L032	F22B  33/00	221	ȯץȡ㡥ߤϢȤۤʤ륿פξܥͭΡΣ	Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
F22B  33/02  \	1	1	3L032	F22B  33/02	3	̤ΣĤǳ֤ͭܥȤ߹碌	Combinations of boilers having a single combustion apparatus in common
F22B  33/04  \	2	2	3L032	F22B  33/04	0	ϧܥȿɥܥȤ߹碌	of boilers of furnace-tube type with boilers of water-tube type
F22B  33/06  \	2	2	3L032	F22B  33/06	0	ϧܥȱɥܥȤ߹碌	of boilers of furnace-tube type with boilers of fire-tube type
F22B  33/08  \	2	2	3L032	F22B  33/08	4	ɥܥȱɥܥȤ߹碌	of boilers of water-tube type with boilers of fire-tube type
F22B  33/10  \	2	2	3L032	F22B  33/10	1	Ω̤Ω̤Ǳž룲ʾ¿ťܥȤ߹碌	of two or more superposed boilers with separate water volumes and operating with two or more separate water levels
F22B  33/12  \	1	1	3L032	F22B  33/12	43	Ωܥ顤ʤĤΥ˥åȤȤƾܥ顤ǳ֡ǳ塤°浪ͭ	Self-contained steam boilers, i.e. comprising as a unit the steam boiler, the combustion apparatus, the fuel storage, accessory machines, and equipment
F22B  33/14  \	1	1	3L032	F22B  33/14	103	㰵ӹⰵܥȤ߹碌	Combinations of low- and high-pressure boilers
F22B  33/16  \	2	2	3L032	F22B  33/16	2	ήư	of forced-flow type
F22B  33/18  \	1	1	3L032	F22B  33/18	262	ܥ¾֤Ȥ߹碌	Combinations of steam boilers with other apparatus
F22B  35/00  \	0	0	3L021	F22B  35/00	190	ܥϡʵĴƣģǮƣǣˡΣ	Control systems for steam boilers  (for regulating feed-water supply F22D 5/00;  for controlling superheat temperature F22G 5/00)
F22B  35/00  A	0	0	3L021	F22B  35/00	168	úʲܥ	Coal-fired boilers
F22B  35/00  B	0	0	3L021	F22B  35/00	58	ήǳǳƥܥ	Fluid fuel-combusting boilers
F22B  35/00  C	0	1	3L021	F22B  35/00	102	Ѱžˡͥ	Methods of variable pressure operation (takes precedence)
F22B  35/00  D	0	1	3L021	F22B  35/00	105	о	Target to be operated
F22B  35/00  E	0	2	3L021	F22B  35/00	480	ܥͥ	Controlling the number of boilers (takes precedence)
F22B  35/00  F	0	2	3L021	F22B  35/00	273	Ǯη	Heated-carrier systems
F22B  35/00  G	0	3	3L021	F22B  35/00	138		Amount of steam
F22B  35/00  H	0	2	3L021	F22B  35/00	528	ǳƷϡǳϣƣΡ	Combustion systems (the combustion control F 23 N)
F22B  35/00  J	0	3	3L021	F22B  35/00	380	ǳ	Amount of fuel
F22B  35/00  K	0	2	3L021	F22B  35/00	215	ǮηϤǳƷϤȹ礻	Combination of carriers to be heated and combustion systems
F22B  35/00  Z	0	0	3L021	F22B  35/00	321	¾Τ	Others
F22B  35/02  \	1	1	3L021	F22B  35/02	1	۴Ĥξܥ	for steam boilers with natural convection circulation
F22B  35/04  \	2	2	3L021	F22B  35/04	73	ưˤΡʤϧФƤܥ̾αž٤ãޤǤεưˤ	during starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
F22B  35/06  \	1	1	3L021	F22B  35/06	14	ήưξܥ	for steam boilers of forced-flow type
F22B  35/08  \	2	2	3L021	F22B  35/08	13	۴ķˤ	of forced-circulation type
F22B  35/10  \	2	2	3L021	F22B  35/10	93	ήˤ	of once-through type
F22B  35/12  \	3	3	3L021	F22B  35/12	50	׳ޤĶ׳Ǳž	operating at critical or supercritical pressure
F22B  35/14  \	2	2	3L021	F22B  35/14	47	ưˤΡʤϧФƤܥ̾αž٤ãޤǤεưˤ	during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
F22B  35/14  A	2	0	3L021	F22B  35/14	46	ήܥεư	Starting-up operation of once-through boilers
F22B  35/14  B	2	1	3L021	F22B  35/14	145	Ǯη	Carrier systems to be heated
F22B  35/14  C	2	1	3L021	F22B  35/14	63	ǳƷ	Combustion systems
F22B  35/14  D	2	0	3L021	F22B  35/14	56	ήܥεư	Starting-up operation of non-once-through boilers
F22B  35/14  Z	2	0	3L021	F22B  35/14	34	¾Τ	Others
F22B  35/16  \	2	2	3L021	F22B  35/16	3	庮ʪξγˤ	responsive to the percentage of steam in the mixture of steam and water
F22B  35/18  \	1	1	3L021	F22B  35/18	139	ŻѤܥˤ	Applications of computers to steam-boiler control
F22B  37/00  \	0	0	3L033	F22B  37/00	57	ܥιʬޤϺΣ	Component parts or details of steam boilers
F22B  37/00  A	0	0	3L033	F22B  37/00	329	ݴ̡ȴ̡͡忩ɻ	Storing boilers (warming boilers) and corrosion prevention
F22B  37/00  B	0	0	3L033	F22B  37/00	147	ӥæβæ֤	Disposition of desulfurisation and denitrification systems
F22B  37/00  C	0	0	3L033	F22B  37/00	50	Υ	Nozzle arrangements
F22B  37/00  Z	0	0	3L033	F22B  37/00	219	¾Τ	Others
F22B  37/02  \	1	1	3L033	F22B  37/02	52	ޤϣʾξܥˤŬѤǤ	applicable to more than one kind or type of steam boiler
F22B  37/02  B	1	0	3L033	F22B  37/02	122	ò	Mufflers
F22B  37/02  D	1	0	3L033	F22B  37/02	267	佤Τ	Arrangements for inspection and repair
F22B  37/02  E	1	1	3L033	F22B  37/02	140	ư	Mobile arrangements
F22B  37/02  F	1	2	3L033	F22B  37/02	53	̤ԤܥĥȡǮ򴹴ݥܥĥȣƣǣ	Robots walking on the surface of tube plates (cleaning robots for heat exchangers F 28 G 15/04)
F22B  37/02  G	1	2	3L033	F22B  37/02	109	ȹư	moving work tools in a swirling direction
F22B  37/02  H	1	2	3L033	F22B  37/02	31	ư֤ο弼ؤ	Devices to convey transfer devices into water chambers
F22B  37/02  J	1	1	3L033	F22B  37/02	76	ݥ֤ץ饰μϽǮ򴹴ɤĺƣƣ	Attachment or removal of sleeves and plugs (closing heat exchanging tubes F 28 F 11/00)
F22B  37/02  K	1	1	3L033	F22B  37/02	39	Υ륫Сݤι¤Ȥμ	Constructions of nozzle covers and attachment devices therefor
F22B  37/02  Z	1	0	3L033	F22B  37/02	125	¾Τ	Others
F22B  37/04  \	2	2	3L033	F22B  37/04	229	㡥üλѡħΤ	and characterised by material, e.g. use of special steel alloy
F22B  37/06  \	2	2	3L033	F22B  37/06	130	ƻɤޤϱɡ°ʪ㡥ɤؤʪ	Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts
F22B  37/08  \	3	3	3L033	F22B  37/08	25	üξ»ɻߤ뤿μդ	Fittings preventing burning-off of the tube edges
F22B  37/10  \	2	2	3L033	F22B  37/10	127	ɡ°ʪΣ	Water tubes; Accessories therefor
F22B  37/10  K	2	0	3L033	F22B  37/10	44	ѷѼ	Joints for water tubes
F22B  37/10  L	2	0	3L033	F22B  37/10	51	ɴɹ¤Ŵɡʿɤη	Constructions of double walled-tube structures; double-walled  tubes (forms of water tubes 37/12)
F22B  37/10  M	2	0	3L033	F22B  37/10	173	ɤ	Arrangements and disposition of water tubes
F22B  37/10  N	2	1	3L033	F22B  37/10	317	ɤˤϧɤ	forming furnace walls with water tubes
F22B  37/10  P	2	1	3L033	F22B  37/10	74		forming openings
F22B  37/10  X	2	0	3L033	F22B  37/10	107	ˡݣаʳοɤι¤	Constructions of water tubes other than K - P
F22B  37/10  Z	2	0	3L033	F22B  37/10	271	¾Τ	Others
F22B  37/10 601 \	3	3	3L033	F22B  37/10	2	եͭɡ㡢եħʿɣ	Water tubes with fins, e.g. characterised by fins (water tube walls 37/10)
F22B  37/10 601 A	3	0	3L033	F22B  37/10	247	Ĥ˱Ӥե㡢ϧɿľեñΡե	Vertically-stretching fins, e.g. single furnace wall vertical fins, helical fins
F22B  37/10 601 B	3	1	3L033	F22B  37/10	40	ǮãäΤβùܤ	processed to increase heat transfer
F22B  37/10 601 C	3	0	3L033	F22B  37/10	91	˱Ӥե	Horizontally-stretching fins
F22B  37/10 601 D	3	1	3L033	F22B  37/10	69	ǮãäΤβùܤ	processed to increase heat transfer
F22B  37/10 601 Z	3	0	3L033	F22B  37/10	31	¾Τ	Others
F22B  37/10 602 \	3	3	3L033	F22B  37/10	1	ɡ㡥Ǯɡݸɤɿ	Protecting water tubes, e.g. superheater tubes; antivibration of water tubes
F22B  37/10 602 A	3	0	3L033	F22B  37/10	111	ʤˤ	by coatings
F22B  37/10 602 B	3	1	3L033	F22B  37/10	153	Ѳкʤ	Refractory material
F22B  37/10 602 C	3	2	3L033	F22B  37/10	145	°Ǥ	being metal material
F22B  37/10 602 D	3	1	3L033	F22B  37/10	220	ʤμ	Attachment of coatings
F22B  37/10 602 G	3	0	3L033	F22B  37/10	65	ĥɤˤΡ㡥ݥܥѥĥ	by studs, e.g. for water tubes of soda recovery boilers
F22B  37/10 602 Z	3	0	3L033	F22B  37/10	221	¾οݸ	Other water tube protection
F22B  37/12  \	3	3	3L033	F22B  37/12	165	ɤη㡥̷Τ	Forms of water tubes, e.g. of varying cross-section
F22B  37/14  \	3	3	3L033	F22B  37/14	105	ʡ㡥ɤ³ʡ߿	Supply mains, e.g. rising mains, down-comers, in connection with water tubes
F22B  37/16  \	3	3	3L033	F22B  37/16	1		Return bends
F22B  37/18  \	3	3	3L033	F22B  37/18	44	ʪ㡥夫ʪ	Inserts, e.g. for receiving deposits from water
F22B  37/20  \	3	3	3L033	F22B  37/20	102	ٻ֡㡥ɰ켰ꤹ뤿ΤΡΣ	Supporting arrangements, e.g. for securing water-tube sets
F22B  37/20  A	3	0	3L033	F22B  37/20	166	ܤˤ	by welding
F22B  37/20  B	3	0	3L033	F22B  37/20	193	ɤ˸夷ٻѤ	using of supports adhered to water tubes
F22B  37/20  C	3	0	3L033	F22B  37/20	163	ʿԴɤٻΤѤΡ̣ͥ	used for supporting parallel tubes (A, B take precedence)
F22B  37/20  D	3	1	3L033	F22B  37/20	86	ɻٻѤδ̹ĻٻĤѤ	using of supporting plates with through-holes for supporting water tubes
F22B  37/20  E	3	0	3L033	F22B  37/20	58	ɤɤͤȴѤ	used in a place where water tubes penetrate walls
F22B  37/20  Z	3	0	3L033	F22B  37/20	195	¾Τ	Others
F22B  37/22  \	2	2	3L033	F22B  37/22	377	ɥࡨɴ󤻡°ʪΣ	Drums; Headers; Accessories therefor
F22B  37/22  A	2	0	3L033	F22B  37/22	178	ɥࡦɴ󤻤֡	Disposition and attachment of drums or headers
F22B  37/22  B	2	0	3L033	F22B  37/22	106	ɥࡦɴ󤻤ؤδɤε̩դ	Hermetic attachment of tubes on drums or headers
F22B  37/22  C	2	0	3L033	F22B  37/22	83	ɥࡦɴ󤻤ʬ۰֤ͭ	Drum or headers having distribution guiding arrangements
F22B  37/22  D	2	0	3L033	F22B  37/22	67	ɥΤߤι¤	Constructions with drums only
F22B  37/22  E	2	1	3L033	F22B  37/22	80	ʬΥ֤ͭ	With vapour-liquid separators
F22B  37/22  F	2	0	3L033	F22B  37/22	94	ɴ󤻤Τߤι¤	Constructions with headers only
F22B  37/22  G	2	1	3L033	F22B  37/22	54	Ĺ¤	Constructions of tube plates
F22B  37/22  Z	2	0	3L033	F22B  37/22	59	¾Υɥࡦɴ	Other drums or headers
F22B  37/24  \	2	2	3L033	F22B  37/24	93	ٻߤޤϤդ֡㡥ǮΤΤΡΣ	Supporting, suspending or setting arrangements, e.g. heat shielding
F22B  37/24  B	2	0	3L033	F22B  37/24	245		Suspending arrangements
F22B  37/24  C	2	0	3L033	F22B  37/24	162		Setting arrangements
F22B  37/24  D	2	0	3L033	F22B  37/24	83	Хĥơݤˤɻٻ	Tube wall-supporting arrangements by back stays
F22B  37/24  E	2	1	3L033	F22B  37/24	71	ʿХĥơݤѤ	using of horizontal back stays
F22B  37/24  F	2	2	3L033	F22B  37/24	65	ʿХĥơݤΥݥʡ¤	Constructions of corner parts of horizontal back stays
F22B  37/24  G	2	2	3L033	F22B  37/24	131	ʿХĥơݤϧɤϢ빽¤	Connecting constructions of horizontal back stays and furnace walls
F22B  37/24  Z	2	0	3L033	F22B  37/24	218	¾Τ	Others
F22B  37/26  \	2	2	3L033	F22B  37/26	322	ʬΥ֡Σ	Steam-separating arrangements
F22B  37/26  A	2	0	3L033	F22B  37/26	133	ʬΥּΤ֡	Disposition and attachment of steam-separating arrangements per se
F22B  37/26  B	2	0	3L033	F22B  37/26	93	ʬΥ塢ɥӽ	Exhausting sejunction water or drain
F22B  37/26  C	2	0	3L033	F22B  37/26	44	ʬۡ	Steam distribution and guiding arrangements
F22B  37/26  D	2	0	3L033	F22B  37/26	63		Control devices
F22B  37/26  Z	2	0	3L033	F22B  37/26	80	¾Τ	Others
F22B  37/28  \	3	3	3L033	F22B  37/28	47	ήž	involving reversal of direction of flow
F22B  37/28  A	3	0	3L033	F22B  37/28	22	ʬΥּΤ֡	Dispositions and attachment of steam-separating arrangements themselves
F22B  37/28  B	3	0	3L033	F22B  37/28	33	ʬΥ塢ɥӽ	Exhausting sejunction water or drain
F22B  37/28  C	3	0	3L033	F22B  37/28	41	ʬۡ	Steam distribution and guiding arrangements
F22B  37/28  D	3	0	3L033	F22B  37/28	3		Control devices
F22B  37/28  Z	3	0	3L033	F22B  37/28	6	¾Τ	Others
F22B  37/30  \	3	3	3L033	F22B  37/30	75	ʬΥμĤФ׷Ѥ	using impingement against baffle separators
F22B  37/30  A	3	0	3L033	F22B  37/30	92	ʬΥּΤ֡	Disposition and attachment of steam-separating arrangements per se
F22B  37/30  B	3	0	3L033	F22B  37/30	104	ʬΥ塢ɥӽ	Exhausting sejunction water or drain
F22B  37/30  C	3	0	3L033	F22B  37/30	100	ʬۡ	Steam distribution and guiding arrangements
F22B  37/30  D	3	0	3L033	F22B  37/30	10		Control devices
F22B  37/30  L	3	0	3L033	F22B  37/30	117	¿ĤѤΡʣ¡áġڤʻΤȡ	using of perforated plates (should be noted with A, B, C, D and Z)
F22B  37/30  Z	3	0	3L033	F22B  37/30	15	¾Τ	Others
F22B  37/32  \	3	3	3L033	F22B  37/32	120	ϤѤ	using centrifugal force
F22B  37/32  A	3	0	3L033	F22B  37/32	89	ʬΥּΤ֡	Disposition and attachment of steam-separating arrangements per se
F22B  37/32  B	3	0	3L033	F22B  37/32	101	ʬΥ塢ɥӽ	Exhausting sejunction water or drain
F22B  37/32  C	3	0	3L033	F22B  37/32	72	ʬۡ	Steam distribution and guiding arrangements
F22B  37/32  D	3	0	3L033	F22B  37/32	16		Control devices
F22B  37/32  Z	3	0	3L033	F22B  37/32	23	¾Τ	Others
F22B  37/34  \	2	2	3L033	F22B  37/34	32	۴Ĥʤ뤿Υܥ°ʡʿ۴Ĥʤ뤿֣ƣģ	Adaptations of boilers for promoting water circulation (auxiliary devices for promoting water circulation F22D 7/00)
F22B  37/36  \	2	2	3L033	F22B  37/36	243	ܥʤ	Arrangements for sheathing or casing boilers
F22B  37/36  A	2	0	3L033	F22B  37/36	83	ݲɡǮɡǮ̣ƣ̡	Heat insulation walls, adiabatic walls (adiabatic general F 16 L)
F22B  37/36  B	2	0	3L033	F22B  37/36	124	̷Ѽʥѥ󥷥󥸥襤ȡ	Expansion joints
F22B  37/36  C	2	0	3L033	F22B  37/36	84	ɤ̤ʬΥݥʥݥ̣ƣʡ	Seal of sections in which tubes penetrate the walls (seal in general F 16 J)
F22B  37/36  Z	2	0	3L033	F22B  37/36	115	¾ʤ	Other sheathing arrangements
F22B  37/38  \	2	2	3L033	F22B  37/38	312	ܥαž֤¬ޤϻؼ㡥ɤήޤή̤δƻΣ	Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
F22B  37/38  A	2	0	3L033	F22B  37/38	51	ƻʴƻ̣ƣͣ	Monitoring windows (monitoring windows in general F 23 M 11/4)
F22B  37/38  B	2	0	3L033	F22B  37/38	195	ϴܴƻ	Remote or indirect supervision
F22B  37/38  C	2	1	3L033	F22B  37/38	370	ǮΤξ̤δƻ	Supervising state quantity of heated carriers
F22B  37/38  D	2	1	3L033	F22B  37/38	101	ήϳ̤δƻ	Supervising fluid leakage
F22B  37/38  E	2	1	3L033	F22B  37/38	248	ʪ忩δƻ	Supervising deposits or corrosion
F22B  37/38  F	2	1	3L033	F22B  37/38	123	Ǯϡ᥿벹٤δƻ	Supervising thermal stresses or metal temperature
F22B  37/38  Z	2	0	3L033	F22B  37/38	86	¾Τ	Others
F22B  37/40  \	2	2	3L033	F22B  37/40	213	ܥαƻʬɤ㡥ĤǷ줿ΡΣ	Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles
F22B  37/42  \	2	2	3L033	F22B  37/42	328	֤ޤϼư֤Ŭѡޤ֡ʵǮѣƣģˡΣ	Applications, arrangements or dispositions of alarm or automatic safety devices (for feed-water heaters F22D 1/14)
F22B  37/42  A	2	0	3L033	F22B  37/42	96	ǮΤΰ۾̤˱Ρʣݣͥ	responding to the abnormal state quantity of heated-carriers (37/44 to 37/47 take precedence)
F22B  37/42  B	2	0	3L033	F22B  37/42	74	ϧ۾ﰵϡʴ鰵ˤ˱	responsive to abnormal pressures (including negative pressures) in furnaces
F22B  37/42  C	2	0	3L033	F22B  37/42	33	۾ǳƤ˱	responsive to abnormal combustion
F22B  37/42  D	2	0	3L033	F22B  37/42	113	ήϳ̤˱	responsive to fluid leakage
F22B  37/42  E	2	0	3L033	F22B  37/42	23	ݥӥȥĥפ˱	responsive to turbine trips
F22B  37/42  F	2	0	3L033	F22B  37/42	23	ȴʥѡݥˡȴ	Gas purging, air vent
F22B  37/42  Z	2	0	3L033	F22B  37/42	212	¾Τ	Others
F22B  37/44  \	3	3	3L033	F22B  37/44	121	ۤΡΣ	of safety valves
F22B  37/46  \	3	3	3L033	F22B  37/46	177	̤ޤϹ̤˱Ρ㡥ܥ顼ǳѡѤޤϾòѡΣ	responsive to low or high water level, e.g. for checking, suppressing or extinguishing combustion in boilers
F22B  37/47  \	3	3	3L033	F22B  37/47	105	۾ﲹ٤˱Ρ㡥ץ饰ˤưΡΣ	responsive to abnormal temperature, e.g. actuated by fusible plugs
F22B  37/48  \	2	2	3L033	F22B  37/48	235	ܥ餫塤̵ʪޤϥå뵡ޤ֡ʥܥοɡϧݣƣǡˡΣ	Devices or arrangements for removing water, minerals or sludge from boilers (cleaning water tubes, furnace tubes or the like of boilers F28G)
F22B  37/48  A	2	0	3L033	F22B  37/48	136	ήʮͤˤΡǮ򴹴ݰ̣ƣǡ	by jets of fluid (cleaning of heat-exchangers in general F 28 G)
F22B  37/48  B	2	0	3L033	F22B  37/48	135	ǮΰʪʬΥ	Separation of foreign substances from heated-carriers
F22B  37/48  C	2	0	3L033	F22B  37/48	188	ǳƻὸǳƻν̣ƣʡ	Collecting or removing combustion residues (collecting or removing combustion residues in general F 23 J)
F22B  37/48  D	2	0	3L033	F22B  37/48	29	ݸ¤	Constructions of cleaning holes
F22B  37/48  Z	2	0	3L033	F22B  37/48	89	¾Τ	Others
F22B  37/50  \	3	3	3L033	F22B  37/50	163	ӿ	for draining or expelling water
F22B  37/52  \	3	3	3L033	F22B  37/52	164		Washing-out devices
F22B  37/52  A	3	0	3L033	F22B  37/52	76	Ūʿɤƣǡ	Chemical washing-out  (washing-out of water tubes F 28 G)
F22B  37/52  B	3	1	3L033	F22B  37/52	214	ѡ㡡̺֡棳	for internal surfaces of tubes, e.g. boiler compounds injectors (injection control 37/56)
F22B  37/52  Z	3	0	3L033	F22B  37/52	239	¾ΤΡʿ̣ãơ	Others (water treatment C 02 F)
F22B  37/54  \	3	3	3L033	F22B  37/54	177	åޤϥ֥	De-sludging or blow-down devices
F22B  37/54  A	3	0	3L033	F22B  37/54	109	ĥ	De-sludging
F22B  37/54  B	3	0	3L033	F22B  37/54	186	֥ݥʥ֥ݥ棳	Blow-down (Blow-down control 37/56)
F22B  37/54  Z	3	0	3L033	F22B  37/54	31	¾Τ	Others
F22B  37/56  \	2	2	3L033	F22B  37/56	247	ܥ֡㡥ܥΥ֥Ŭڤʻ³μ¤ˤ	Boiler-cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
F22B  37/56  A	2	0	3L033	F22B  37/56	241	֥ݥ	Blow-down control
F22B  37/56  B	2	0	3L033	F22B  37/56	140	ݥĥ֥ˤʥݥĥ֥漫Σƣʡ	Soot blower control (soot blower control per se F 23 J)
F22B  37/56  Z	2	0	3L033	F22B  37/56	307	¾ΤΡ㡥̺ʵ奯ݥ󥢥ĥףƣģ	Others, e.g. control of boiler compounds injection (feed-water cleanup F 22 D 11/10)
F22B  37/58  \	2	2	3L033	F22B  37/58	35	ɴ󤻤ޤϥɥफδɤνй	Removing tubes from headers or drums; Extracting tools
F22B  37/60  \	1	1	3L033	F22B  37/60	3	ִŪޤϥեåξܥäŬ	specially adapted for steam boilers of instantaneous or flash type
F22B  37/62  \	1	1	3L033	F22B  37/62	8	ήưξܥäŬ礹	specially adapted for steam boilers of forced-flow type
F22B  37/64  \	2	2	3L033	F22B  37/64	7	ñΤΤդޤϻٻ֡Σ	Mounting of, or supporting arrangements for, tube units
F22B  37/66  \	3	3	3L033	F22B  37/66	6	ľ֤줿ɤ	involving vertically-disposed water tubes
F22B  37/68  \	3	3	3L033	F22B  37/68	4	ʿ֤줿ɤ	involving horizontally-disposed water tubes
F22B  37/70  \	2	2	3L033	F22B  37/70	25	ɤ˿ʬ	Arrangements for distributing water into water tubes
F22B  37/72  \	3	3	3L033	F22B  37/72	2		involving injection devices
F22B  37/74  \	3	3	3L033	F22B  37/74	68	ɤޤϴȤΩΤιʤ	Throttling arrangements for tubes or sets of tubes
F22B  37/76  \	1	1	3L033	F22B  37/76	8	ήή¸ߤޤѻ֤ŬѤޤϤդΣ	Adaptations or mounting of devices for observing existence or direction of fluid flow
F22B  37/78  \	1	1	3L033	F22B  37/78	74	٥ؼŬѤޤϤդΣ	Adaptations or mounting of level indicators
