The present invention relates to a hydrogen peroxide vapor generation device, a space sterilization apparatus including same, and a space sterilization method, including: an evaporation chamber which has a space formed therein, and includes a nozzle unit and a discharge port which are formed in an upper portion thereof; an evaporation unit which is formed in a lower inner portion of the evaporation chamber and equipped with a plurality of heating units and a hydrogen peroxide transfer pipe which are arranged in stack; and an air supply unit which is formed in a lower portion of the evaporation chamber and through which outside air is suctioned, discharged, and fed to the evaporation unit.

A non-drip hygiene dispenser for dispensing a wipe paper-towel while keeping a clean and sterile working area comprises (a) a wipe paper-towel, (b) at least one reservoir containing liquid, (c) a first stream of compressed air, (d) a second stream of compressed air, an anti-dripping nozzle, (e) rolling means, and (f) cutting means. The anti-dripping nozzle further comprises activating means and a dispensing tip. The activating means comprises a retractable anti-drip needle backed by a spring. The spring retracts backwards when compressed air of the first stream of compressed air presses the spring, thus retracts the anti-drip needle, and thus, unblocks the dispensing tip to allow liquid from the at least one reservoir to flow through the dispensing tip. When the compressed air pressing the spring is released, the retractable anti-drip needle returns to its original place, blocking the dispensing tip to block the passage of liquid remained in the dispenser immediately upon shut off of the dispenser, thus, to avoid undesired dripping. The second stream of compressed air entering the anti-dripping nozzle mixes with the sprayed liquid in order to form a foggy environment around the wipe paper-towel.

An apparatus (and a corresponding operation method) for automated maskless painting of an external paint on a complex surface using a coloring agent, wherein the complex surface is part of an aircraft. The apparatus comprises a multi-axis robot comprising at least one applicator for the coloring agent, wherein the at least one applicator is configured to apply the coloring agent to the complex surface using a coloring agent ejection technology.

A system for applying an adhesive includes an air flow path for conveying compressed air and an adhesive flow path for conveying liquid adhesive. The system includes an air heater coupled to the air flow path and configured to heat the compressed air and a liquid adhesive heater coupled to the adhesive flow path and configured to heat the liquid adhesive. The system also includes an applicator positioned downstream from the air and liquid adhesive heaters. The applicator is configured to receive the liquid adhesive from the adhesive flow path and the compressed air from the air flow path. The applicator is further configured to spray the liquid adhesive from the applicator using the compressed air.

A method of cleaning a submerged surface covered by a liquid medium includes injecting a cleaning liquid with a submerged fluid jet through the liquid medium at the submerged surface. The method may also include introducing at least one of a non-reactive gas and a reactive gas with the cleaning liquid through the submerged fluid jet.

The present invention relates to an air spray device for a heterogeneous mixture coating solution without a separate stirring device. The air spray device 100 comprises: a main body 110 provided with a heterogeneous mixture coating solution inlet 111 and an inlet 112 for compressed air from the outside; an extension block 120 coupled in a downwardly extended shape at the lower end of the main body; a nozzle assembly 130 coupled at the lower end of the extension block; a communication path 140 vertically formed in the centers of the main body, the extension block and the nozzle assembly; a needle valve 150 provided inside the communication path; and a plunger 160 formed in a plate shape to be positioned in proximity to the bottom side of the communication path of the extension block to stir the heterogeneous mixture coating solution.

A material deposition device includes a solution supply component, a gas supply component, and a co-axial discharge mechanism. The co-axial discharge mechanism includes a solution discharge mechanism, and a gas discharge mechanism co-axial with the solution discharge mechanism. The material deposition device further includes an alignment component that aligns the solution discharge mechanism in a center of the gas discharge mechanism; and an orifice plate with a number of turbulence inducing structures that induce turbulence in gas exiting the gas discharge mechanism.

A liquid slurry spraying system for spraying highly viscous slurries, including those with solids content, while maintaining the slurry in agitated condition for optimum discharge. The spraying system includes a nozzle body with a liquid flow passage having a liquid slurry inlet adjacent an upstream end and a spray tip at a downstream end, a valve needle supported in the liquid flow passage for reciprocating movement between spray tip closing and opening positions, and a bladed rotor having a plurality of vanes rotatably supported on the valve needle for rotation as an incident to the direction of liquid slurry from said liquid inlet when the valve needle is in an open position for agitating the liquid slurry for direction to the spray tip.

A spray gun nozzle may include a main body, and a spray hole is formed at a front end thereof. A tapered cylindrical guiding surface having gradually wider diameter from rear to front is extended forwardly from the spray hole, and the inclined angle of the guiding surface with respect to the spray hole is between 45 degrees and 75 degrees. A plurality of air grooves having U-shaped cross-section are formed on the outer periphery of the front end of the main body axially extending from a front end of the guiding surface, and the air grooves are spaced apart with the same interval. With the air grooves on the front end of the main body having the fixed groove diameter, the flow rate of the high-pressure airflow passing through the air groove is consistent.

Provided is a visual insulating spray lance for live working. A liquid guide tube and an air tube in a hollow operating rod are communicated with an inlet end of a spray nozzle; the operating rod is connected to a connecting rod and a display respectively through a fastener; a video optical transceiver fixedly arranged on the connecting rod is connected to the display through an optical fiber; the optical fiber is connected to an optical receiver, the optical receiver is connected to a chip for a video signal processor, the chip for a video signal processor is connected to a power divider having two output interfaces respectively connected to a display screen and a 4G communication module; a battery is connected to the optical receiver, the chip for a video signal processor, the power divider, the display screen, the 4G communication module, and a global positioning system (GPS) module.