2166results about "Flush cleaning" patented technology

On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. An alternative method involves the use of a chelating agent and a biocide. Other possible cleaning and disinfection reagents may be added as needed including corrosion inhibitors, chelating agents, biocides, surfactants and reducing agents. These cleaning and disinfecting methods work in a variety of industrial water systems including cooling water and boiler water systems.

A device of intensified heat exchange and automatic descaling in dual turbulation screw type includes screw tube, screw tie, connection rod, fixing frame and rotary rod as small end of the rotary rod sheathed into hole at exle liquid input end of fixing frame to form rotation cooperation, end point of small end of the rotary rod to be connected by connecting piece in hinge joint with end point of one end of the screw tie, the screw tube with external circle and intermediate internal hole being all the straight tube of screw shape and two end parts being round tube shape to be set on external cylindrical surface of cylinder shape end of the fixing frame. The present invention uses technique of combining the screw tube with the screw tie to bring the screw tie to rotate by flowing of fluid in the screw tube to make no fouling within the tube and heat conduction face can carry on desaling automatically under the dual turbulation of the screw tube and tie to enhance more the efficiency of heat exchange.

The invention discloses a detergent and a cleaning method for a complete air-conditioner, which not only can uniformly and completely remove dirt but also cannot strongly corrupt components and parts such as aluminum, copper and stainless steel, are time-saving and labor saving, safe and reliable, and pollution-free, and have low cost. Raw materials of the detergent are at least two compositions of citric acid, inorganic weak acid and inorganic strong acid; a non-ionic surfactant or a non-ionic surfactant is mixed with an anionic surfactant; and the detergent comprises an oxygen solvent, an acid corrosion inhibitor, and the balance being water. The cleaning method comprises: disassembling a motor and a fan, and taking off the motor and the fan for independent cleaning; preparing the detergent into an aqueous solution according to the proportion of between 10 and 15 percent, hanging the complete air-conditioner after disassembly of the motor and the fan into a cleaning tank, soaking the complete air-conditioner for 30 minutes at normal temperature, and starting ultrasonic waves to clean for 10 to 30 minutes; placing the complete air-conditioner into a washing tank, and using a high-pressure water gun to spray the surface and the inside of the air-conditioner; and using hot blast to dry the air-conditioner at a temperature of 80 DEG C.

The invention discloses a method for decaling phosphoric acid concentration heat exchanger, namely a technique of adopting a washing-liquor composed of thin fluosilicic acid solution, organic phosphonic acid sustained-releasing agent and film forming matter and firstly washing the heat exchanger with water and then washing out the foul with the washing liquor. In the washing liquor, the fluosilicic acid is a 5%-20% thin acid, the organic phosphonic acid sustained-releasing agent includes amino tri- sub-methylene phosphoric acid, hydroxyl sub-ethyl di-phosphoric acid and hydroxyl-l, 1-subethyl di-phosphoric acid; the film forming matter includes nitrous phenylhydroxylamine ammonium salt and wuluotuopin as well as sodium molybdate. As using, adding in surface active agent alkyl sulphonate. The invention can make high efficiency and thorough decaling the graphite heat exchanger and simultaneously effectively control the corrosion of the washing liquor to the equipment and as compared with traditional washing methods, the invention improves the productivity of the equipment.

A heat exchanger tube cleaning assembly and method is provided. The assembly can allow for semi-automated tube cleaning of a heat exchanger or other piping or equipment used in an industrial facility such as, for example, a petrochemical plant or oil refinery.

A cleaning apparatus, system and method for parts of the heating/cooling system of an vehicle. The apparatus effectively impedes odour and pollution originating from micro-organisms growing on the cooling and heating units. The cleaning assembly 220 includes of distribution tubes 225 provided with nozzles 230 arranged to spray cleaning substance onto the surfaces of the cooling and/or heating units 200, 232. The distribution tube preferably extends through at least a portion of the plurality of heating/cooling flanges 215 of the heating/cooling units and the nozzles are provided in the spaces formed between two adjacent flanges.

The method for cleaning chemical process and hydrocarbon processing apparatuses is performed by establishing a closed flow circulation loop, under specific operating conditions and in the presence of hydrocarbon-based fluids. The cleaning method is monitored by performing chemical/physical analysis. After cleaning the apparatus(es) can be immediately inserted back into the process. An optional degassing step can also be performed, in case the apparatus(es) has to be disassembled for inspection of maintenance.

The invention discloses a condenser intelligent moving and cleaning robot, which can be used in the field of large scale cleaning equipment and comprises a track running mechanism, a cleaning mechanism, and an electric control mechanism. A spray gun is connected on a spray gun running rest of a cleaning arm. The spray gun is provided with a underwater TV camera and connected with a cleaning media source by a communicating tube. The cleaning arm is connected with a cleaning arm running bracket component by a drive shaft. The drive shaft of the cleaning arm is connected with an electric push rod. The cleaning arm running bracket component is arranged on a pivoting support which is arranged on the track running mechanism by the running bracket component. The right front end of the top of the spray gun, the front end and the back end of a mounting plate of the pivoting support and the front position and the back position of a track support are provided with sonar sensors. The robot has few joints, simple structure, convenient processing and assembling, can automatically move in a water chamber of the condenser to finish the precise position and efficient cleaning of copper pipes of the condenser, has wide application range and high degree of automation.

On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. An alternative method involves the use of a chelating agent and a biocide. Other possible cleaning and disinfection reagents may be added as needed including corrosion inhibitors, chelating agents, biocides, surfactants and reducing agents. These cleaning and disinfecting methods work in a variety of industrial water systems including cooling water and boiler water systems.

A method for the on-line cleaning of a heat exchanger used with petroleum process fluids which create coke deposits of asphaltenic origin on the exchanger tubes. The asphaltenes are removed by re-dissolution in a solvent oil of high solubility power for the asphaltenes. Certain asphaltenic crudes are useful as solvents in view of their chemical similarity to the asphaltene coke precursors; also useful are refined petroleum fractions such as gas oils which are also characterized by their solvency for asphaltenes. The solvent oil may be admitted to the heat exchanger following withdrawal of the process fluid and then allowed to soak and dissolve the asphaltene coke precursors after which the resulting solution may be withdrawn and the exchanger returned to use without being at any time disconnected from its associated process unit.

A method and system utilizing a mobile cleaning unit for providing cleaning of heat exchanger tube bundles. The mobile cleaning unit utilizes a pressurized seal positioned about top door of the cleaning enclosure to provide a fluid and vapor lock of the cleaning enclosure. An oxygen purging system of the cleaning enclosure, the cleaning fluid reservoir, and the control panels provides additional safety. The mobile cleaning unit can use cleaning fluid produced at the facility site and return the cleaning fluid to the facility site for reprocessing after the heat exchanger tube bundles are cleaned.

There is disclosed a cleaning device for a heat exchanger which safely and effectively cleans the heat exchanger and which can sufficiently obtain a deodorizing effect and a sterilization effect. The cleaning device for the heat exchanger includes an electrolysis unit for treating dew condensation water of the heat exchanger by an electrochemical technique, a supply unit for supplying electrolytic water produced by the treatment performed by this electrolysis unit to an outer surface of the heat exchanger, and an control unit for controlling the electrolysis unit and the supply unit, and the control unit allows the electrolysis unit to electrolytically treat the dew condensation water of the heat exchanger and produce the electrolytic water, and allows the supply unit to supply the produced electrolytic water to the outer surface of the heat exchanger.

An upper bundle steam generator cleaning, inspection, and repair system including a deployment support device receivable within the steam generator to raise a cleaning device, an inspection device, and/or a tool up to the upper bundles of the steam generator.

A method of cleaning sludge from the tube sheet (34) of a nuclear steam generator (10) includes introducing a moveable sludge lance (76) said moveable sludge lance having duel lance heads (77) through handholes (62) in the side of the generator and into a central tube lane (60) having a central stay rod (61) and sludge lancing with high pressure fluid through the row 1 tubes (85) in the tube lane, where the distance (200) between the dual lance heads (77) is wide enough to allow the dual lance heads to extend beyond the central stay rod (61).

A gravity-assisted water saving system, and method of use, utilized for collecting condensate from an air conditioning system, sanitizing it, and then diverting it for constructive use. It has a chamber with an inclined bottom surface, a removable basket for containing tablets used for sanitizing swimming pool water or bleach tablets used for laundry sanitizing purposes, a double P-trap assembly on its water inlet side that prevents sanitizing vapors from entering the air conditioning system to which it is connected, a removable cap sealing its top opening to prevent escape of sanitizing vapors into the atmosphere, and an optional mounting bracket for enhanced stabilization against a stationary object. Inflow tubing connected to the chamber permits ready attachment of the present invention to an air conditioning condensate discharge pipe, while a discharge tube in an inferior position transports reclaimed water to its location of subsequent use.

A deployment system for an upper bundle steam generator cleaning/inspection device, the deployment system including an elongated body feedable through an access in a steam generator shell proximate the tube sheet of the steam generator, the elongated body flexible in one configuration to bend into a position for extension up through flow slots in support plates of the interior of the steam generator, and rigid in another configuration for positioning and supporting cleaning/inspection devices up through the steam generator proximate the upper tube bundles of the steam generator; and a drive device for driving the elongated body up through the support plates and for retracting the elongated body back down through the support plates.

A slide coupling fitting for connecting a tubular conduit and the method of use are provided. The fitting includes a tubular body, two opposing open ends, and an external threaded section on an exterior of the tubular body adjacent to each open end; and two tubular sliding couplers, each having an internal diameter slightly larger than an external diameter of the tubular body, and each being connected to one of the open ends of the tubular body, respectively, and coaxial with the tubular body. Each tubular sliding coupler has an internal threaded section adjacent to an inner end which is closer to a longitudinal center of the tubular body, and a smooth interior at an opposing outer end for slidably engaging a tubular conduit. The internal threaded section is complementary to the external threaded section of the tubular body for mutual engagement.

A portable apparatus and method for chemically cleaning a single pass plate and frame heat exchanger allows the cleaning solution to be uniformly distributed across the plate pack. This portable system of one pump of preferably 10-horsepower, capable of 300 gallons per minute flow through a discharge port; at least two distribution/collection tubes with apertures of predetermined diameter and predetermined placement; one reversing manifold; two bag filters; and one circulation tank with a capacity at least on the order of 150 to 200 gallons; attaches to a single pass plate and frame heat exchanger. The single pass plate and frame heat exchanger is configured with at least two removable flanges that, once removed, allow for the installation of the distribution/collection tubes. The apertures in the distribution/collection tubes are placed facing downwards depending upon the direction of the operational fluid to enhance a vacuuming effect for particle and debris removal during cleaning. The distribution/collection tubes are skewed off-center of the flanges, with an ability to be rotated in at least four different directions off-center, and generally located towards the bottom of the single pass plate and frame heat exchanger to facilitate particulate removal and uniform distribution of cleaning solution.