There is provided a substrate processing apparatus that includes: a process chamber in which a substrate is accommodated to be processed; a plurality of quartz gas nozzles configured to supply, into the process chamber, a plurality of process gasses capable of generating reaction products by reacting the plurality of process gasses with each other; an evacuation device configured to evacuate an interior portion of the process chamber; a bypass pipe configured to connect a quartz gas nozzle among the plurality of quartz gas nozzles to the evacuation device; and a coating gas nozzle configured to supply at least one of a silicon-containing gas and an oxidizing gas capable of forming a SiO.sub.2 coating film inside the quartz gas nozzle connected to the evacuation device in a state in which the inside of the quartz gas nozzle connected to the evacuation device is evacuated by the evacuation device.

A coolant nozzle (1) for cooling a metal strand in a continuous casting installation has a mouthpiece (5), which is arranged at a nozzle outlet end (4) and through which liquid coolant (6) can emerge from the coolant nozzle (1). To allow a rapid buildup of pressure at the coolant nozzle (1), it provides a feed (8), which is formed as a tube-in-tube system (9) arranged upstream of the mouthpiece (5) in the direction of through-flow (7) and has a feed outlet end (10), through the first tube (11) in which control air (13) can be brought up to the feed outlet end (10) and through the second tube (12) of which the liquid coolant (6) can be fed to the mouthpiece (5) by way of the feed outlet end (10), and also provides a control valve (14), which is integrated in the feed (8), is arranged at the feed outlet end (10), can be actuated pneumatically by using the control air (13) and is intended for controlling the feed of the liquid coolant (6) into the mouthpiece (5).

Disclosed is a two-fluid fog generator including: a low-pressure fog generator (10) breaking down liquid into liquid micro particles and spraying the liquid micro particles through a primary nozzle hole (16) of a nozzle body (13); and a fog generation unit (20) positioned on top of the nozzle body (13) and comprising: a conical pneumatic chamber (22) filled with compressed air; and a secondary nozzle hole (26) spraying fog, wherein the secondary nozzle hole (26) is located directly above the primary nozzle hole (16) and arranged in a concentric manner with the primary nozzle hole (16), wherein the fog includes a mixture of a compressed air and the liquid micro particles.

A flow conditioning device for conditioning a wet gas stream having a plurality of liquid droplets and a gas flow is presented. The flow conditioning device includes a first segment including a first convergent section configured to break the plurality of liquid droplets from a first size to a second size. Further, the flow conditioning device includes a second segment coupled to the first segment and including a second convergent section configured to break the plurality of liquid droplets from the second size to a third size.

A step cavity low-frequency ultrasonic atomizing nozzle includes an air inlet casing tube, a water inlet casing tube, a de Laval valve, a fixed cap, a first adjustable base, a tapered rectification sleeve, a vortex flow impeller, a stepped resonance tube, an adjustment plunger, a positioning screw, and a second base. The adjustment plunger is located within a second step hole of the stepped resonance tube, and the axial position thereof is adjustable. The vortex flow impeller is fixed on the stepped resonance tube via a bearing, and an outer tapered surface thereof attaches to an inner tapered surface of the tapered rectification sleeve.

A low-frequency ultrasonic atomizing device includes a piezoelectric vibrator, a horn, a secondary atomizing chamber, a gas-liquid valve end cover, a Laval-type valve core, a stepped valve core, and a gas-liquid valve body. The piezoelectric vibrator is glued onto the horn, and the gas-liquid valve end cap is connected to the gas-liquid valve body by a thread, while both the stepped valve core and the Laval-type valve core are installed within a cylindrical cavity of the valve body, an end of the Laval-type valve core being sleeved at an end of the stepped valve core. The horn and the secondary atomizing chamber, the secondary atomizing chamber and the gas-liquid valve end cover are connected by a double-head stud and a nut. The device achieves multi-stage atomization of droplets, which increases the atomization quantity of a spray device, the droplets being small, and also achieves long distance spraying.

An apparatus and process for spraying liquids and producing very fine mist with the apparatus, the apparatus including: a needle injector that includes a capillary line (1) and an outer tube (8); a liquid supply (5); and a gas supply (4), where: the capillary line (1) is arranged in the interior space of the outer tube (2); the internal diameter of the capillary line in the needle injector is in the range of 2-1000 m; the capillary line is in active communication with a gas supply (4); and the outer tube (2) is in active communication with a liquid supply (5).

A squeeze sprayer for dispensing fluid product as a spray or spray mist includes a squeeze bottle and a squeeze sprayer closure attached to the squeeze bottle. The squeeze sprayer includes a cap which defines a chamber for receipt of air and fluid and further defines an outlet. Further included as a part of the squeeze sprayer is a valve which is assembled into the cap and a dip tube which is received by the cap. The dip tube is constructed and arranged to provide air to the chamber and the squeezing of the bottle forces air and fluid into the chamber and from there through the outlet to be dispensed as a spray or spray mist. A second embodiment provides an upright squeeze sprayer with a unique orifice cup. A third embodiment includes a directional adapter.

A liquid atomizing device includes a medical solution cup connected to an air pump, and an output cover installed onto the medical solution cup and including an atomizing socket formed in the outer cover, and the top of the atomizing socket cover has a linear opening and a drainage groove for increasing the flow of a medical solution. When the medical solution is guided to flow upwardly through the drainage and sprayed from a specially designed linear opening to the outside through the drainage groove due to a high speed airflow, the medical solution is collided with a barrier rod disposed above the linear opening to form an atomized medical solution, and the linear opening has the effect of atomizing the medical solution stably.

A hand held spray dispenser in which air and liquid are pressurised towards a mixing chamber by energy generated by a manual activation element that is rotated with a unidirectional twist to energise one or more energy storage bodies, energy from which is released to generate sufficient air pressure and air flow and sufficient liquid flow for a spray to be formed from the air-liquid mixture.