38results about How to "Reduce overspray" patented technology

The invention discloses a multi-point sampling and measurement system for exhaust smoke from an inlet and an outlet of a denitration CEMS of a thermal power plant. The multi-point sampling and measurement system comprises a back flushing device and two exhaust smoke analyzers, and further comprises an exhaust smoke gathering tank and more than 2 inlet sampling devices; a detection probe of each inlet sampling device extends into a sampling opening on a flue inlet, and the output end of each detection probe is connected with a sampling pipe; each sampling pipe is communicated with the inlet of the exhaust smoke gathering tank through each inlet sampling device; the outlet of the exhaust smoke gathering tank is connected with the inlet exhaust smoke analyzer through a pipeline; the back flushing device is communicated with the sampling pipes through compressed air pipes. According to the multi-point sampling and measurement system, the original design with only one sampling device is improved into the design with multiple sampling devices, so that NOx exhaust smoke with different concentrations can be obtained and then is conveyed to the exhaust smoke analyzers for measurement after being mixed. Therefore, a measurement value is more accurate and stabler, and the probability of over-spraying and under-spraying of ammonia is greatly reduced; a purging device is used for regularly and automatically purging the sampling pipes, so that the possibility that the sampling pipes are blocked is effectively reduced.

A cover for a robot which includes an electrostatic spray gun with a nozzle which sprays charged material. The cover includes an insulating layer adapted to generally surround the robot except at an aperture where the nozzle extends from the cover. The cover also includes a conductor on the insulating layer near the aperture and spaced apart from the robot. A charge source provides an electric charge to the conductor.

The invention relates to an installation and a method for the metallic coating of a workpiece using a coating device, said coating device comprising a displaceable coating lance, by which a metal plasma jet can be generated to create a coating of metal particles. According to the invention, it is provided that the coating device with the coating lance and a measuring device for measuring the coating thickness are jointly integrated in the installation, and that the coating device with the coating lance as well as the measuring device are enclosed by a housing.

The invention discloses an ammonia spraying optimization control method and system for an SCR flue gas denitrification device. The control method comprises the following steps: dividing an inlet flueand an outlet flue into grids; matching the grids with the inlet flue and the outlet flue one-by-one; sampling each inlet flue grid and each outlet flue grid respectively; by sampling each corresponding inlet flue grid and outlet flue grid, analyzing and calculating a DCS (Distributed Control System) and carrying out partitioned ammonia spraying control on the total ammonia spraying amount and each corresponding inlet flue grid area according to a calculation result. Partitioned differential control of ammonia spraying is realized, over-spraying and under-spraying of ammonia are reduced, the ammonia escape rate is reduced, energy is saved, consumption is reduced, and the safety of a unit is improved.

An air spray painting apparatus for sending a fan of atomized paint spray via a first entrainment flow of carrier fluid and of a second flow of carrier fluid, separate from the first entrainment flow and capable of forming the spray fan, includes electrical heating elements for heating to one and the same temperature the first and second flows of carrier fluid, and a unit for regulation and control of the heating elements.

The air cooling system and method for a heat recovery steam generator (HRSG) inlet provides a combined cycle power plant utilizing a powerful fan coupled to ductwork connected to pipes that enter the HRSG inlet duct coupled to an exhaust duct of a Combustion Turbine (CT) for lowering the temperature of the CT exhaust gas provided to the heat recovery steam generator by the CT. The cool air injection system is utilized during low load operation or startup of the CT to ensure that spray water from an inter-stage desuperheater in an HRSG is fully evaporated prior to entering the downstream superheater or reheater. A feedback system includes temperature elements measuring the mix temperature that regulates the cooling air injection rate into the HRSG inlet.

The invention provides an automatic spraying support protection fixture for turbine guide vanes. The automatic spraying support protection fixture is characterized by comprising a base (1), a supporting plate (2), a positioning block (3), a lower baffle (4) and an upper baffle (5). The supporting plate (2) is perpendicularly installed on the base (1), and the top end of the supporting plate (2) is provided with a plane; the positioning block (3) is of a V-shaped plate structure with a forward opening and is used for installing the guide vanes, the bottom surface of the positioning block (3) is installed on the plane of the top end of the supporting plate (2) through bolts, an opening installation surface of the positioning block (3) is matched with installation edges of the vane back sides of lower edge plates of the guide vanes in shape, and the upper edge of the positioning block (3) is flush with the spraying end faces of the lower edge plates of the guide vanes; the lower baffle (4) is of a V-shaped plate structure with a backward opening, an opening part installation surface of the lower baffle (4) is matched with the vane basin sides of the lower edge plates of the guide vanes in shape, and the upper edge of the lower baffle (4) is flush with the spraying end faces of the lower edge plates of the guide vanes.

A method includes the steps of preparing a work area for mitigating contamination of an item to be coated. A residue free cleaning solution is applied to a surface of the item for cleaning the surface without leaving residue. The surface is scuffed and cleaned for removing contaminates. The surface rinsed to remove cleaning solution and residue from scuffing the surface. A catalytic hardener is combined with a finishing product comprising clear coat, an accelerated reducer, a fast reducer, an acetone and a UV inhibitor for bonding to the surface with UV protection. The surface is tacked-off to remove dirt and dust. The combined catalytic hardener and finishing product is applied with an HVLP spray system having less than 5 psi of pressure for mitigating overspray. A period of time is provided for the combined catalytic hardener and finishing product to cure.

An atomization device including a contact plate including a plurality of capillary openings, a liquid source in fluid communication with the contact plate, and a brush including a plurality of filaments. As the brush rotates a first radial direction, the filaments adhere small amounts of liquid from within the capillary openings, flex when in contact with the contact plate, and release when contact is broken with the contact plate to project liquid from the filaments as they oscillate. A portion of the contact plate includes a spirally curved surface with which the filaments contact, wherein the radius decreases along a path following the first radial direction.

The invention relates to a spraying device, in particular to a building template surface spraying device. According to the building formwork surface spraying device, a formwork can be placed, spraying can be conveniently conducted on the formwork, and using is convenient. A building formwork surface spraying device comprises a supporting plate, a spraying device body and a spraying device body, the supporting frames are arranged on the front side and the rear side of the supporting plate; the three spraying tanks are uniformly arranged on the upper side and the lower side of the two supporting frames at intervals, and the number of the spraying tanks is twelve; and the stretching spray pipes are arranged at the tops of the six spraying tanks on the upper portion in a sliding mode. A push rod drives a first connecting rod to move towards the inner side, the first connecting rod drives an ejector rod to move towards the upper side in the process of moving towards the inner side, the ejector rod drives a second connecting rod to move towards the upper side, the second connecting rod drives a friction plate to move towards the upper side, and the friction plate pushes a template to move towards the upper side, so that the template can be assisted to move towards the upper side; and paint can be conveniently smeared on the side face of the formwork.

A technique for treating and reducing ink overspray of an inkjet printer is provided. In an example, an ink overspray collector for an inkjet printer may include a first opening defining a first print area of the inkjet printer, and a frame surrounding the first opening. The frame is configured to receive overspray from operation of the inkjet printer, and the frame may be formed from a woven material. In some examples, a controller of an inkjet printer may reduce an amount of ink ejected near an edge of a print medium to reduce overspray.

The invention discloses a method and device for accurately measuring the temperature of an SCR catalytic unit, and relates to the technical field of engine tail gas treatment. The technical problem that the temperature of the SCR catalytic unit is not accurately measured is solved. The method comprises the steps that in an experimental environment, the temperature T of the front end of the SCR catalytic unit is obtained; the temperatures T1 to Tn of n different positions of the periphery of the circumference of the middle of the SCR catalytic unit are obtained; the temperature Tn +1 of the center of the middle of the SCR catalytic unit is obtained; the working condition of an engine is adjusted according to a set temperature interval, the temperature T is gradually increased to the second temperature from the first temperature, the engine stably runs for set time at each working condition point, after the set time is up, the temperatures T1 to Tn and Tn + 1 corresponding to all the working condition points are recorded, and the correction coefficient lambda which is (T1 +, + Tn + Tn + 1) / (n + 1) T corresponding to all the working condition points is calculated; a correction curve is made according to the correction coefficient lambda corresponding to all the working condition points; and in actual work, the correction curve is inquired according to the actual temperature of the front end of the SCR catalytic unit, and the actual working temperature of the SCR catalytic unit is obtained.

A topcoat is applied to a surface of a golf ball using a carrier fluid comprising nitrogen gas or nitrogen-enriched air. The carrier fluid typically has air enriched to about 90-99.5% nitrogen. A mixture of carrier fluid and coating material may be sprayed onto the exterior of the golf ball. Nitrogen-enriched air delivery provides a number of benefits over compressed air delivery, such as reduced coating thickness, reduced variance in the coating thickness and average thickness, reduced pooling in dimple center, edge ratio closer to 1.0, faster cure times, reduced viscosity, less material usage, reduced material flow rate, reduced atomization air pressure, and decreased drying time.

The invention relates to an installation and a method for the metallic coating of a workpiece using a coating device, said coating device comprising a displaceable coating lance, by which a metal plasma jet can be generated to create a coating of metal particles. According to the invention, it is provided that the coating device with the coating lance and a measuring device for measuring the coating thickness are jointly integrated in the installation, and that the coating device with the coating lance as well as the measuring device are enclosed by a housing.

The invention discloses a rigid-flexible coupling parallel robot multi-color spraying experimental device and a spraying method, including a rigid support, a pull-type drive assembly, an end effector, a rigid spring telescopic rod assembly, a 360° rotary joint assembly, and a multi-color rectangular spray gun Components and electromechanical control system parts; the rigid support provides overall support for the robot; the pull-type drive assembly provides driving force for the end effector, and the upper end of the end effector is connected to the top cross universal joint of the rigid support through a rigid spring telescopic rod assembly. The rigid spring telescopic rod assembly realizes the passive tensioning of the end effector through the spring and the telescopic rod. The 360° swivel joint assembly adds a rotational degree of freedom to the end effector. One-color rectangular spray gun assembly, the spray gun assembly can carry out multi-color spraying and prevent paint from overspraying. The invention can complete the automatic spraying of multi-color patterns on the surface of three-dimensional workpieces, and monitor the spraying quality in real time.

A method and device of treating an irregularly shaped article to prepare the article for painting is provided. The device includes a burner which can produce an adjustable flame tongue which can fit into crevices, openings and other irregular topographical features of an item to be painted or otherwise coated. The burner device further provides means to apply a grafting chemical on a freshly oxidized surface. Further, the invention provides means to colorize treated objects so that they may be recognized as having been treated. In another embodiment, the grafting chemicals may be enhanced with electrolytic solutions such that electrostatic methods of painting may be subsequently employed on the item. In an alternate embodiment, the burner is adapted to spray a powder inside of a generally enclosed flame, and is used in conjunction with chop guns to manufacture glass or carbon fiber preforms. In a preferred embodiment all of the main systems of the present invention are provided with redundancies that allow the continuous operation of the device. Further, the device provides means to run and modify the process either locally or by remote communication means.

The invention discloses a biomass-based medicinal fertilizer liquid mulch film and a preparation method and application thereof, and relates to the technical field of natural polymer materials. In the present invention, the waste agricultural and forestry biomass resources are functionalized and carboxymethylated to obtain water-soluble plant fiber components; biological pesticides are deposited and loaded on natural inorganic porous minerals in situ; Biomass-based medicinal fertilizer liquid mulch film is obtained after blending and crosslinking, hydrophilic film aid, drug-loaded minerals, humic acid, and glycerin, and adding surfactant to homogenize and emulsify. The biomass medicinal fertilizer liquid mulch film of the invention has good film-forming properties, has the dual functions of pesticides and fertilizers, and has significant insecticidal and fertilizer-enhancing effects on crops; the soil has strong water absorption, water retention and heat preservation capabilities, and can promote the rooting and germination of crops. Increasing production and efficiency meets the development needs of green agricultural planting. At the same time, it can effectively improve the high-value transformation and application of agricultural and forestry wastes and realize the recycling of renewable resources.