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WO/2000/047779A1 |
The invention relates to a method and a device for withdrawing slag from a combustion chamber or combustion space in an especially efficient and inexpensive manner. According to said method the slag drips in liquid form onto a vibrating,...
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WO/2000/047938A1 |
It is possible to clean high temperature (over 400, e.g. over 1000, degrees F) surfaces in a time and cost efficient manner by using a liquid-cooled ceramic welding lance (11) to direct (at super-atmospheric pressure) a blasting media at...
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WO/2000/044859A1 |
A flushing composition containing a lubricant and a deposit removal component having a deposit removal effect which is especially useful for cleaning refrigeration systems by reducing or removing unwanted deposits in constricted areas in...
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WO2000004333A9 |
A heat exchanger assembly comprises a tubular casing (1) housing product conduit pipes (8) and a rod (14) extending through each pipe (8). The rod (14) being reciprocatingly moveable along the pipe (8) and having a scraping means (15) pr...
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WO/2000/017595A1 |
A cleaning device (1) of the type operating by means of a pair of hydraulic nozzles (2), each nozzle spraying a cleaning liquid jet which carries out a swabbing action, allowing a considerable handling flexibility by making the nozzles (...
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WO/2000/017576A1 |
A method of controllable cooling of a boiler (10) and removing exfoliated magnetite from the boiler tubes (30, 31) employs flowing dry gas through the boiler tubes (30, 31) at a flow velocity above the terminal velocity of the magnetite ...
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WO/2000/008404A1 |
The invention concerns an installation wherein intercepting means (17) are interposed on an outlet pipe (11S) of a heat exchanger (10) for collecting solid cleansing elements (15) circulating therein, whereby said solid cleansing element...
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WO/2000/006963A1 |
Method for prevention of sludge piling in heat transfer devices more specifically such as steam generators and heat exchangers in which the heat transfer takes place between an internal medium flowing through a complex of tubes (2.4) att...
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WO/2000/000306A1 |
The invention relates to a method for generating a scale-removing or coat-applying system based on a vacuum-balancing low-pressure multi-component two-phase fluid flow. A cleaning site such as, e.g., a pipe circuit (A) or the inner cavit...
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WO/1999/061179A1 |
The invention relates to a method for cleaning a container, especially a boiler of a conventional power station. According to the invention, the container is degreased and scoured using an alkaline cleaning solution during a method step....
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WO/1999/054079A1 |
A working robot for heat exchanger comprising a robot main body (21), wherein the robot main body (21) is carried in a water chamber (2A) of a condenser (1) and disposed on a tube plate (4) through which a number of thin pipes (3) are pa...
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WO/1999/048625A1 |
Adjustable tube-cleaning device (10) has a scraper sub-assembly (16) which includes a substantially annular sleeve (32) on a circumferential outer surface (30) of an elastic core (14) which, in turn, is mounted on a central shaft (12). T...
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WO/1999/046538A1 |
Method and apparatus for cleaning a chamber (25) is disclosed. Scraping blades (65) are rotatably mounted within a chamber (25) and parallel to a longitudinal axis of the chamber (25). The scraping blades (65) are rotated circumferential...
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WO/1999/045333A1 |
The invention concerns a cleaning device (12) comprising a cleaning head (13) operating by liquid jets (19) consisting of a nozzle-block (20) having a conical front part (20a) and a rear part (20b) whereof the transverse cross-section pe...
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WO1999028675A9 |
The boiler has a flue gas flow passage with a horizontal economizer section containing one or more horizontal 180 DEG bends so that two consecutive parts of the flue gas flow passage, seen in the direction of the flue gas flow, have a jo...
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WO/1999/035459A1 |
A retractable sootblower (100), having a movable carriage and lance tube assembly (110, 115) for cleaning inside surfaces of a boiler, includes a stationary starter switch (37) for initiating operation of the sootblower (100) and a cable...
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WO/1999/024179A1 |
An automatic pneumatic projectile launcher (10) for automatically launching compressible cleaning projectiles (22) into a hose, pipe or tube is disclosed. The launcher (10) comprises a moveable hopper (12) having an opening (14) provided...
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WO/1999/023438A1 |
A method of cleaning tubing in an operating heater (10), in which the tubing has an inlet (12) and an outlet (14). While the heater (10) is in operation, a hollow, metallic and/or tubular mesh pig (110) is run through the tubing from the...
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WO/1999/020399A1 |
A gun (10) having a body (11) with a barrel (14) extending through it is disclosed. A nozzle (50) is coupled to one end of the barrel (14) and to which a hose may be connected. A valve (52) is connected to an opposite end of the barrel (...
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WO/1999/013279A1 |
An apparatus for cleaning pipes, wherein a four-way changeover valve (43) in a heat pump circuit (200) is switched to operate two transfer heat exchangers (25, 26) alternately as a cooler and heater, and to thereby circulate a cleaning r...
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WO/1999/011578A1 |
A method and apparatus for detecting and controlling cooling system characteristics is disclosed. A flow rate of make-up cooling medium is measured. A conductivity of the make-up cooling medium is measured. A conductivity of a recirculat...
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WO/1998/046374A1 |
The invention relates to a method and a device for cleaning piping (1) with a vertical section (F). According to the invention, a cleaning tool (2) for removing piping deposits (A) is subjected to a longitudinal feed (V) in the direction...
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WO/1998/044304A1 |
A closed circuit (13) is configured by connecting upper ends of existing refrigerant pipings (2A, 2B) of a refrigerant circuit with an upper connecting path (11) and lower ends thereof with a lower connecting path (12), and the closed ci...
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WO/1998/039111A1 |
A flushing system (30) is provided for flushing a cooling system. The flushing system (30) includes a reservoir (40) containing a flushing fluid, a valve (54) for alternately reversing the direction of flow of the flushing fluid, and a p...
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WO/1998/031975A1 |
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosive...
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WO/1998/027383A1 |
A soot blower lance tube indexing mechanism (54) including a pinion (64), first and second pinion ratchet/sprocket assemblies (76, 78), a spindle (32), first and second spindle sprockets (58, 60), and a clutch. The clutch is operable to ...
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WO/1998/025081A1 |
A soot blower (10) incorporating an improved cable drive system. The soot blower (10) includes a housing (12), a travelling carriage (14) including a driven pulley (28) mounted in the housing (12) for reciprocal movement between an exten...
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WO/1998/025080A1 |
A modular housing assembly (22) for a soot blower (10) including a rear housing section (26), a front housing section (24), and an intermediate housing section (28) between the front and rear sections (24, 26). The front and rear housing...
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WO/1998/022773A1 |
In order to reduce both the amount of the element blown and the erosion of heating surfaces caused by a soot removing fan (1) comprising a spear-like vent pipe (2) and outlet nozzles (3) for delivering the blown element under pressure, i...
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WO/1998/016329A2 |
An upper bundle steam generator cleaning, inspection, and repair system including a deployment support device (50) receivable within the steam generator (10) to raise a cleaning device (70), an inspection device (209, 423), and/or a tool...
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WO/1998/015362A1 |
Apparatus for cleaning internal walls of at least one conduit (10), for example of a photobioreactor, comprises mobile cleaning means, such as a pig (4) or a bead, within the conduit (10), at least one inlet valve (2) for introducing liq...
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WO/1998/010234A1 |
A water lance blaster for cleaning heat exchangers is disclosed. A box (34) with reinforcing metal sheets (3) is fixed in the hatch of the combustion chamber wall and the cardan joint (5) is fixed by a joint holder (6) in a bore (4). The...
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WO/1998/006991A1 |
A countercurrent heat exchanger of the plate type where the exchange of heat between gases takes place when the horizontally flowing gas forms an angle with the row of heat exchanger plates. The heat exchanger plates have a rounded edge ...
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WO/1998/003051A2 |
A novel high-purity polymer dispersant and sludge conditioner added to the feedwater entering the secondary side of a nuclear steam generator for minimizing the accumulation of metal-oxide deposits within the nuclear steam generator duri...
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WO/1998/001688A1 |
The invention relates to a valve for changing the flow direction of a fluid in conduits, which conduct the fluid to and from, respectively, a heat exchanger. Heat exchangers used in systems where the cooling water is taken from natural s...
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WO/1997/049783A1 |
This steam cracking method comprises injecting at at least one point upstream of a secondary indirect quenching exchanger (4b), particles of average size from 0.02 to 4 mm, at a circulating speed of 20 to 180 m/s in this exchanger, in su...
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WO/1997/049965A1 |
A ball lock (1) for a device for returning balls for cleaning pipes of fluid, preferably water-operated cooling systems used e.g. in heat exchangers, power station condensers, refrigerating and air conditioning systems, etc., comprises a...
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WO/1997/049964A1 |
A screening device for eliminating balls (6) for cleaning the tube of a heat exchanger, condenser or the like from a coolant line (7) comprises a screen (2) located in the outlet area of the heat exchanger, able to cover the free cross s...
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WO/1997/049784A1 |
The invention discloses a steam cracking installation and method with controlled injection of solid particles in a quenching exchanger (3). The particles are injected with a single axially injecting conduit located on the axis of the que...
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WO/1997/038264A1 |
A nozzle (16) for a sootblower (10) is used to project a cleaning agent against the internal surfaces of a boiler for removing fireside deposit. The nozzle of the present invention incorporates a passageway having a convergent segment be...
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WO/1997/035156A1 |
The method involves creating a two-phase flow in the circulation system. A characterising feature of the method is the fact that the two-phase flow is created by introducing hydrogen into the coolant. The hydrogen can be introduced mixed...
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WO/1997/017533A1 |
There is provided flushing apparatus comprising a housing (10) enclosing a space (11) adapted to contain water. A valve (24) allows selective introduction of a flushing liquid to the space (11). A delivery pipe (14) extends from a lower ...
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WO/1997/015783A1 |
A device for unplugging air ports on chemical recovery boilers. Chemical recovery boilers are typically used for recovery of black liquor, but are periodically shutdown due to excessive build-up of carryover on air intake ports. Damping ...
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WO/1997/008107A1 |
A method for removing scale, sludge, corrosion and other debris and deposits from the interior of a heat exchanger vessel such as a nuclear steam generator, includes generating pressure pulses in a non-corrosive, strongly basic, amine-co...
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WO/1997/008496A1 |
The present invention is directed to a sootblower (10) and particularly to a hub (80) and drive assembly (90) therefore capable of producing improved cleaning by directing the blowing medium over substantially all of the surface to be cl...
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WO/1996/041994A1 |
The instantaneous water heater of the invention consists essentially of an elastic, flexible or rigid, floatingly fitted composite pipe (10) and a heat source (6). When the liquid is heated inside (1) the pipe, undesirable substances, e....
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WO/1996/038702A1 |
A water jet blower for cleaning thermal installations has a water lance (6) movably arranged (5) with its mouth on or in a hatch (2). The water lance (6) can project a water jet on the wall areas that can be reached from the hatch (2) th...
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WO/1996/038704A1 |
A water jet blast for cleaning thermal installations has a water lance (6) movably arranged (5) with its mouth on or in a hatch (2). The water lance (6) can project a water jet on the wall areas that can be reached from the hatch (2) thr...
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WO/1996/038703A1 |
A water jet blower for cleaning thermal installations has a water lance (6) movably arranged (5) with its mouth on or in a hatch (2). The water lance (6) can project a water jet on the wall areas that can be reached from the hatch (2) th...
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WO/1996/038701A1 |
A process is disclosed to determine the position of a controllable water jet blower used to clean a predeterminable surface of a heatable inner chamber, preferably a combustion chamber, in which sediments are deposited. At least one poin...
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