Multiple Station HVLP Spray Coating System Utilizing a Rotary Vane Pump and Manifold Design with a Control System Function

摘要

A high volume low pressure (HVLP) coating application system employing a rotary vane pump and manifold assembly that provides an improved source of air for increased spray gun atomization of high solid coatings and faster applications of more even coated surfaces with continuous HVLP pressures of 10 PSI at the spray gun output and the ability to power multiple spray guns and breathing apparatus from a single manifold system.

主权项

1. A design that provides a high volume low pressure (HVLP) coating application system that will meet the highest allowable HVLP output pressure at the spray gun cap of 10 PSI while simultaneously providing enough air volume to be able to atomize high solid coating formulations and provide fresh air for an operator breathing system for a portable, centralized way to source multiple spray gun stations working in unison. This new and improved HVLP coating system will allow coating applications to have greater transfer efficiencies at faster coverage rates with more even and consistent coating thicknesses, saving in paint costs, labor costs and improving the final finish qualities. This improvement comprises;
i. A rotary vane pump powered by an electric motor or other power source of a capacity to supply a minimum of 15 pound per square inch (PSI) of pressure and a minimum of 60 cubic foot per minute (CFM) of volume to a four (4) station system design. The spray station design is directly proportional to pump output so the number of spray stations can be expanded with a larger pump output. ii. A manifold design that accepts the output air of the rotary vane pump and regulates the pressure it supplies to the spray guns and fresh air breathing apparatus by mean of a pressure relief valve and individual pressure regulators at each output source, eliminating the need for an external storage tank to accomplish these functions. iii. A coating supply system that allows coatings to be sent from one central source to each gun by means an external hydraulic pump and supply hose, eliminating the need to re-fill gun supply cups and allowing for continuous and faster spray coating applications. iv. A system that supplies fresh air from the manifold to individual breathing apparatus at each station so the coating delivery operator can be protected from the harmful overspray in the environment and breathe fresh filtered and adjustable air and remain cool within the sealed facemask of the breathing apparatus. v. An HVLP coating system that allows any commercially available HVLP spray gun to be used as part of the spray system without modification or design change. Each gun can be used with its standard spray cup for holding the coating or make use of the present design where coating material is supplied from a central source under pressure from an external hydraulic pump and sent to the gun via a supply hose. vi. A means of design to allow this system to be portable and externally controlled so it can be easily moved around a shop floor and used by multiple operators spraying coatings at multiple locations within a given range of operation.