A system for cleaning of piping system using turbulent flow is provided by providing an input of a fixed flow rate of compressed air and a fixed flow rate of cleaning fluid. The fixed fluid flow is provided by either using an electric pump which may be controlled to do so or by restricting the air outlet of an air operated pump such that only a given amount of fluid will be delivered regardless of the pressure of the system into which the fluid is being delivered.
The invention relates to a method for generating a scale-removing or coat-applying system based on a vacuum-balancing low-pressure multicomponent two-phase fluid flow. A cleaning site such as, e.g., a pipe circuit (A) or the inner cavities of a heat exchanger (B) is supplied with an already used cleaning agent in a two- or multiphase flow made up of ca. 10% liquid and ca. 90% air or gas, which after separation is used again by way of continuously monitoring the ion density of the separated liquid, using a conductivity apparatus which determines whether it shall be filtered and reused, be supplied with new liquid and/or solids, or be dumped. A liquid flow and separated air/gas flow from an air pump meet at a mixing point from where an intended two-phase flow flows to the cleaning site (A), (B), or similar, through this and then forward to return as a re-use medium. A gas-injected liquid/powder flow from a mixing unit is also used for coating, e.g., the inner surfaces of pipes and tanks, or objects placed in a suitable chamber, tunnel, or similar, where excess coating medium is returned for separation for possible re-use, re-introduction or dumping. The method operates an expansion separator (2), air pump (3), conductivity meter (5), cyclone filter (7), valve control (11), pump (12), vapor supply (13), ejector (14), mixing head (18) and sundry pressure (15), temperature (4, 6, 17, 20) and volume (16, 21) control units.
A solvent flush cleaning system for a paint supply system. The cleaning system includes an air injection system that injects air directly into the pumping chambers of the solvent pump to entrain air within the solvent. The cleaning system preferably includes a dedicated double diaphragm pump that circulates the solvent. The air injection system preferably includes a pair of injection valves that cooperate to selectively supply pressurized air to each pumping chamber. The air injection system further includes an actuation assembly that times the injection valves so that pressurized air is supplied to each pumping chamber as that chamber expands. The actuation assembly includes actuation valves that are operated by pressure within the air chambers of the pump. When pressure builds in one air chamber, it opens the corresponding actuation valve, which in turn actuates the injection valve causing pressurized air to be supplied to the opposite pumping chamber.
A cleaning tank 30 stores a cleaning liquid to clean the surfaces of semiconductor wafers W immersed in the cleaning liquid. A cleaning liquid supply pipe 33 connects the cleaning tank 30 to a pure water supply source 31. A chemical liquid container 34 stores a chemical liquid, and a chemical liquid supply pipe 36 connects the cleaning liquid supply pipe 33 to the chemical liquid container 34 via an infusion open/close switching valve 35, and a chemical liquid feed means is interposed in the chemical liquid supply pipe 36. The chemical liquid feed means is a reciprocal pump, such as diaphragm pump 37. Thus, a predetermined quantity of the chemical liquid can be infused into pure water or to a drying gas generator to ensure that the chemical liquid of a predetermined concentration be available for washing or drying treatment, regardless of fluctuations in flow amount or pressure of pure water or a drying gas carrier gas.
A contaminant flushing machine for removing contaminants from a container, such as an engine transmission or transmission cooler which includes hoses for coupling to the transmission cooler and a pump for circulating fluid through the hoses and the transmission cooler and a fluid filter having a reduced tendency towards causing vaporization of the fluid. Also included in the contaminant flushing machine is an automatic aeration system for injecting air into the circulating fluid at predetermined intervals. Additionally, a reverse flow piping circuit is included to permit automatic and electric manipulation of the flow direction of fluid through said transmission cooler while at the same time not altering the direction of flow of fluid through the pump.
An inspection apparatus for water flow testing of cooling passageways in gas turbine buckets provides observable visual determination of whether any blockages were formed during the manufacturing or refurbishing processes. The inspection apparatus includes a manifold block and manifold control valve mounted on a platform and adapted to engage the root end of a turbine bucket and supply fluid therethrough. The turbine bucket is affixed to the platform with a holder. The fluid exiting at the tip of the turbine bucket is visible and any blockages in the passageways will be easily discerned by the absence or paucity of fluid flow at the tip. Fluid is supplied to the manifold block by a pressure regulated fluid supply line with a control valve and a flow meter. An air supply line is also connected to the manifold block to supply air through the passageways to remove residual fluid from the bucket.
