摘要:
Disclosed herein is an external mixing pressurized two-fluid nozzle for atomising a liquid by means of liquid pressure and gas, comprising an inner feed liquid pipe (1) extending axially between an upstream end and a downstream end, having a feed liquid conduit (2), a feed liquid inlet (3) positioned at the upstream end and a feed orifice (4) positioned at the downstream end, and a co-axial first gas pipe (5) extending radially outside the inner feed liquid pipe (1) and forming a first gas conduit (6) between the first gas pipe (5) and the inner feed liquid pipe (1), the first gas pipe (5) having a gas outlet slit (7) positioned at the downstream end. Said external mixing two-fluid nozzle provides a swirling motion of the gas, which combined with a pressurized feed liquid enables the production of spray dried powder at industrially applicable capacities with low energy consumption and a small particle size.
摘要:
A high velocity spray (HVS) dispense arm assembly is configured to provide a gas shield nozzle that is arranged to dispense (blow) compressed gas out circumferentially around the HVS dispense arm to reduce or eliminate mist from contacting surfaces above the substrate being treated within process equipment.
摘要:
An adhesive dispensing module and method of spraying a plurality of droplets of a liquid adhesive includes a dispenser assembly and a nozzle. The nozzle includes a nozzle body, a dispersion baffle, and at least one channel. The nozzle body includes a nozzle outlet for discharging a liquid adhesive and at least partially defines a gas inlet, a gas outlet, and a gas passage extending therebetween. The dispersion baffle is positioned within the gas passage to define a dispersion chamber and a consolidation chamber. The at least one channel extends through the dispersion baffle to fluidly connect the dispersion chamber to the consolidation chamber to restrict the pressurized gas received within the dispersion chamber and distribute the pressurized gas into the consolidation chamber according to a predetermined flow distribution. Thereby, the pressurized gas sprays a plurality of droplets of the liquid adhesive according to a predetermined pattern.
摘要:
A system includes a gasification feed injector that includes a tip portion with a first threaded portion, a coolant chamber disposed in the tip portion, and a coolant fluid conduit having a second threaded portion. The coolant fluid conduit is coupled to the tip portion adjacent to the coolant chamber via screwing of the second threaded portion into the first threaded portion.
摘要:
A spray device includes a nozzle that forms a channel for supplying liquid to at least one opening for spraying the liquid outside the device, and, close to the opening, a first and a second electrode arranged in such a way as to inject electric charges into the liquid. The edge of the opening includes, on one side of the channel, at least one projecting end of the first electrode that projects into the channel and is to be brought into contact with the liquid, and on the other side of the channel, an electrically insulating nozzle body in which the second electrode is embedded adjacently to the first electrode, in such a way that the intensity of the electrostatic field in the or each projecting end is maximized.
摘要:
A needle for a jet device, includes a needle body and a tapered part arranged at the end of the needle body, in which the needle body is circumferentially provided with supporting bodies, so that when the needle is assembled in a nozzle of the jet device, the outer surfaces of the supporting bodies are coordinated with an inner chamber of the nozzle to limit the position of the needle body and form fluid channels among the supporting bodies, thereby to effectively prevent the needle from deviating from the spout of the nozzle or from radially swinging.
摘要:
This invention is related to a portable texture-spraying apparatus for uniformly dispersing a viscous material. This apparatus broadly includes a tank assembly having a body with an inner wall that defines a sealed cavity, and a piston assembly slidably disposed within the sealed cavity. The piston assembly divides the sealed cavity into an air-side chamber and a material-side chamber by providing an airtight seal therebetween. Additionally an air-control assembly is provided that broadly includes a pressure-control mechanism configured for receiving compressed air and routing a controlled pneumatic pressure to a directional valve configured for adjusting between a dispensing mode and a loading mode. In dispensing mode, the directional valve routes the controlled pneumatic pressure to the air-side chamber biasing the piston assembly toward the material-side chamber. In loading mode, the directional valve releases the air-side chamber to the atmosphere allowing for filling the material-side chamber with viscous material.
摘要:
A system includes a gasification feed injector that includes a tip portion with a first threaded portion, a coolant chamber disposed in the tip portion, and a coolant fluid conduit having a second threaded portion. The coolant fluid conduit is coupled to the tip portion adjacent to the coolant chamber via screwing of the second threaded portion into the first threaded portion.
摘要:
Disclosed is a surface treatment device with a robust nozzle configuration. The device includes a nozzle for ejecting a primary stream of combustible substance to a gaseous atmosphere in an ejection direction; an ignition unit configured to ignite the primary stream in a point of ignition; and an impermeable shield providing a planar surface that is substantially opposite to the ejection direction and has in front of the nozzle a hole that allows passage of the primary stream. The shield is positioned between the nozzle and the point of ignition of the primary stream. The shield is advantageously dimensioned to allow simultaneous passage of the primary stream ejected from the nozzle and a circumferential secondary stream of gas from the gaseous atmosphere via the hole.
摘要:
The invention is directed to an arrangement of two conduits, wherein the conduits are positioned parallel with respect to each other and wherein each conduit is provided with means suitable to remove solids from its surface and positioned along the length of one of the two sides of the conduit, wherein the means are one or more pairs of oppositely oriented nozzles, each nozzle having an outflow opening for gas directed, along the surface of the conduit, towards the outflow opening of the other nozzle of said pair, wherein the pairs of oppositely oriented nozzles of one conduit are arranged in a staggered configuration relative to the pairs of oppositely oriented nozzles of the other conduit.