Patents
Sitemap › F28 - Heat exchange in general › F28G - Cleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes of boilers › F28G 9 - Cleaning by flushing or washing, e.g. with chemical solvents
Patents for F28G 9 - Cleaning by flushing or washing, e.g. with chemical solvents (1,594)
11/1996
11/27/1996CN2241320Y Automatic in-line scale cleaning device for cooler
10/1996
10/31/1996DE19515291A1 Device for cleaning heat exchanger
10/30/1996EP0740119A2 Defrost and liquid distribution devices for plate-fin heat exchangers
10/23/1996CN1133968A Regenerated heat exchanger
10/16/1996EP0737798A2 Composition effective in removing asphaltenes
10/15/1996US5564371 Upper bundle steam generator cleaning system and method
09/1996
09/24/1996US5558108 Process for removing zebra mussels from rigid structures
07/1996
07/25/1996WO1996022497A1 Plate heat exchanger with wetting device
07/11/1996WO1996021132A1 Replaceable nozzle for high temperature reactors having a fire-resistant lining
06/1996
06/25/1996US5529637 Circulating heated aqueous cleaning solution containing acid mixture and corrosion inhibitor through steel vessel under reducing atmosphere
06/19/1996CN2229647Y Arrow shape collecting ball-net apparatus for cleaning condensing water pipe scaling
05/1996
05/29/1996EP0714010A2 Regenerative heat exchanger
05/15/1996EP0616680B1 Water lance blower for cleaning heat exchangers
04/1996
04/18/1996DE19532232A1 Flake ice machine
04/09/1996US5505163 Sootblower nozzle
04/02/1996US5503115 Steam generator with a water lance sprayer for cleaning a surface of a heat exhanger of the steam generator, and a water lance sprayer in a steam generator
03/1996
03/19/1996US5499639 Apparatus and method for cleaning exchanger tubes
03/14/1996WO1996007763A1 Method for removing alkaline sulfate scale
03/14/1996DE4432503A1 Cleaning heat exchanger, partic. oil cooler for motor vehicle
03/07/1996WO1996007067A1 Process for cleaning and disinfecting flake-ice machines and flake-ice machine for implementing the process
02/1996
02/15/1996WO1996004208A1 Compound for removing scale
02/06/1996US5488826 For use in an exhaust pipe carrying exhaust gases
12/1995
12/25/1995CA2151870A1 On-line surface treatment system and method
12/06/1995CN2214658Y Quick scale removing device for thermos bottle and water heater
11/1995
11/16/1995WO1995030861A1 An upper bundle steam generator cleaning system and method
11/14/1995US5466297 Cleaning a corroded ferrometal system
11/02/1995EP0679241A1 An arrangement for cleaning automatically heat-exchanging passageways, particularly tool-coolant passageways
11/02/1995DE4408519A1 Cleaning machine for ventilation openings and ducts
10/1995
10/19/1995WO1995027876A1 Potable water collection cleaning apparatus
10/19/1995CA2187631A1 Potable water collection cleaning apparatus
10/17/1995US5458860 Dissolving
09/1995
09/28/1995WO1995025929A1 Sootblower nozzle
09/27/1995EP0674024A2 Method for controlling and removing solid deposits from a surface of a component of a steam generating system
09/18/1995CA2144572A1 Method for controlling and removing solid deposits from a surface of a component of a steam generating system
08/1995
08/23/1995EP0667949A1 Cleaning apparatus for heat exchange surfaces and an improved nozzle device therefor.
08/22/1995US5443113 Heat exchangers
08/22/1995US5442921 Targeted fluid delivery system
08/18/1995CA2142789A1 Formic-carboxylic acid mixtures for removing iron oxide scale from steel surfaces
08/01/1995US5437296 Self-contained mobile heat exchange tube bundle cleaning device
06/1995
06/20/1995CA2047093C Method and apparatus for hot water heater sediment removal
06/14/1995EP0574495B1 Method for cleaning of heat exchangers
05/1995
05/31/1995CN2199521Y Scale remover for still and boiler
05/09/1995US5413168 Cleaning method for heat exchangers
05/04/1995DE4430338C1 Device for cleaning heat exchangers
05/03/1995CN1102252A Steam oxygenation blow-washing method
03/1995
03/21/1995US5398517 Potable water collection coil cleaning apparatus
02/1995
02/14/1995CA2130032A1 Cleaning method for heat exchangers
12/1994
12/22/1994WO1994029662A1 Method and apparatus for removing deposits from the walls of process equipment
12/14/1994EP0628969A1 Process for restoring the heat exchanger of a nuclear power station
11/1994
11/22/1994US5366561 Air preheater cleaning method
11/16/1994CN1095158A Scale- removing method and apparatus for water heater
11/02/1994EP0622529A2 Heat exchanger for internal combustion engines
09/1994
09/28/1994EP0616680A1 Water lance blower for cleaning heat exchangers.
09/28/1994CN1092859A Lance machine with flexible lance
08/1994
08/17/1994CN1090923A Heat exchangers
08/09/1994US5336331 Continuous condenser backflush and cleaning systems and methods for use thereof
08/04/1994WO1994017356A1 Automated decontamination system for air conditioning plant
08/02/1994US5333674 Method for measuring the cleaning effectiveness of cleaning bodies on heat exchangers
07/1994
07/26/1994US5331985 Cleaning apparatus
07/21/1994WO1994016280A1 An arrangement for cleaning automatically heat-exchanging passageways, particularly tool-coolant passageways
06/1994
06/01/1994EP0599577A1 Heat exchangers
05/1994
05/26/1994WO1994011694A1 Cleaning apparatus for heat exchange surfaces and an improved nozzle device therefor
04/1994
04/12/1994US5301516 Potable water collection apparatus
04/06/1994EP0590746A1 Proteases to inhibit and remove biofilm
03/1994
03/29/1994CA2106609A1 Proteases to inhibit and remove biofilm
12/1993
12/28/1993US5272874 Exhaust treatment system
12/22/1993EP0574495A1 Method for cleaning of heat exchangers.
10/1993
10/26/1993US5257296 Steam generator chemical solvent mixing system and method
09/1993
09/08/1993CN1076019A Pressed water sprayer for cleaning of heat exchanger
08/1993
08/24/1993US5238502 Condenser backflush system and method for use
08/18/1993EP0555322A1 Improved heat exchange equipment
07/1993
07/21/1993EP0551936A2 Method and apparatus for detecting the flow spud of the cooling water in a heat exchanger for determining the cleaning efficiency of cleaning bodies
06/1993
06/24/1993WO1993012398A1 Water lance blower for cleaning heat exchangers
06/24/1993CA2126184A1 Water lance blower for cleaning heat exchangers
04/1993
04/27/1993CA1316799C Method for cleaning a vessel
04/01/1993WO1993006346A1 Improved exhaust treatment system
03/1993
03/02/1993US5190095 Condenser for refrigerator and method of operating the same
02/1993
02/09/1993US5184636 Cleaning lance device for cleaning pipe bundles of heat exchangers
01/1993
01/12/1993US5178822 Inserting into generator mockup probe including probe tube support plate and probe tube both having same characteristics as corresponding generator devices, conducting chemical cleaning operations, observing mockup probe corrosion
01/05/1993US5176199 Method for measuring the cleaning effectiveness of cleaning bodies on heat exchangers
11/1992
11/17/1992US5164015 Method for cleaning a vessel
11/03/1992US5159956 Hermetically sealed water pipe cleaning device
10/1992
10/28/1992EP0509999A1 Thin film gas heat exchanger
10/13/1992US5154197 Chemical cleaning method for steam generators utilizing pressure pulsing
09/1992
09/23/1992EP0504735A2 Ice-maker and operating method
09/17/1992WO1992015834A1 Method for cleaning of heat exchangers
09/17/1992CA2105674A1 Method for cleaning of heat exchangers
07/1992
07/28/1992CA1305749C Fuel cell coolant inlet manifold and system
07/22/1992CN1017532B Chemical cleaning agent for use of heavy greasy dirt
06/1992
06/02/1992CA1302024C Method and apparatus for cleaning conduits
05/1992
05/29/1992WO1992008943A1 Improved heat exchange equipment
04/1992
04/15/1992CN1060352A Method and apparatus for removing siliceous dirt in turbine
03/1992
03/18/1992EP0475337A1 Method of measuring the cleaning efficiency of cleaning bodies in heat exchangers
03/10/1992CA1296960C Water heater tank flushing device
03/04/1992EP0473234A1 Cleaning lance device for cleaning pipe bundles of heat exchangers
02/1992
02/18/1992US5088451 Sludge removal system for removing sludge from heat exchangers
02/04/1992US5085270 Dual angle heat pipe air preheater
01/1992
01/22/1992CN2094025U Pulsating wave residue remover
12/1991
12/31/1991US5076856 Flushing with solvent pressurized air and oil delay cycles, so aking
11/1991
11/27/1991EP0458533A1 Chemical cleaning method for steam generators utilizing pressure pulsing
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