An electrostatic collector including: a collection chamber delimited by a tubular wall oriented along a first axis; a collection electrode configured to be disposed inside the collection chamber against the wall; a discharge electrode, of elongate form, that extends along the first axis and includes an end, in a shape of a tip, the end being disposed opposite the collection electrode; a first part of a first diameter, emerging on the tip-shaped end, a second part of a second diameter, the second diameter being greater than or equal to twice the first diameter, the second diameter for example being between 2 and 6 times the first diameter; and a sudden widening, extending between the first part and the second part.

Embodiments of the invention involve the application of a disk-in-tube type of wet or dry ESP (electrostatic precipitation) technology for the capture/removal of airborne particles entering a gas turbine compressor. This provides an effective method of particulate removal without the inefficiencies associated with conventional filtering techniques. Embodiments of the innovative approach also eliminate the inlet airstream blocking effect of a conventional filter, thus making its use and operation adaptable to different operating environments and processes that require clean input air streams (including industrial manufacturing processes, power generators, combined turbine and fluid recapture systems for use in heating and cooling, etc.).

The present invention relates to a method for producing an ionization rod and an ionization rod produced according to the method. The invention is characterized in that in a U-shaped duct profile (1) a main line (4) for supply current is placed, in that from this main line branch lines (3) are connected with adjacent carbon fibre brushes held in protective sleeves and in that a thermosetting plastic are laid into the duct profile covering the main part of the protective sleeves.

[Object of the Invention] An object of the present invention is to develop an air curtain device generating parallel air flow based on the knowledge in that parallel air flow generated at the outlet of a turbulent flow runup zone does not include vortex flows and has strong air current interruption performance.

[Disclosure of the Invention] An air curtain device comprises a first ventilation box comprising a discharge elbow provided with guide vanes, a honeycomb, an industrial use ventilating fan, a suction elbow provided with guide vanes, and a pre-filter, wherein the aforesaid elements are sequentially accommodated in a rectangular box whose one side surface is open and an outlet port of the discharge elbow provided with guide vanes and the pre-filter are disposed on the open side surface of the rectangular box, and a second ventilation box of the same structure as the first ventilation box, wherein the first ventilation box is put on an entrance floor with the discharge elbow provided with guide vanes above, and the second ventilation box is put on the entrance floor with the discharge elbow provided with guide vanes below, so that the first ventilation box and the second ventilation box oppose each other at their open side surfaces in a mutually upside-down manner and the first ventilation box and the second ventilation box are distanced from each other by a breadth Xg of the entrance, and wherein an entrance ceiling is provided to a breadth equal to the distance between the ventilation boxes so as to connect a top of the first ventilation box with a top of the second ventilation box, thereby forming an air curtain device entrance, wherein relation between the breadth Xg of the entrance of the air curtain device and a breadth D of the outlet ports of the discharge elbows provided with guide vanes is set at Xg5D.

According to one embodiment of the present disclosure, there is provided a plasma curtain generator comprising: a cylindrical magnet; a cylindrical copper tube disposed inside the cylindrical magnet; and at least one electrode rod disposed along a central axis of the cylindrical copper tube, wherein a high voltage is applied between the cylindrical copper tube and the electrode rod to continuously generate plasma in an atmospheric pressure state, and the cylindrical magnet provides a magnetic force for maintaining the plasma within a certain space inside the cylindrical copper tube. The plasma curtain generator may be installed in a chimney into which an exhaust gas flows from the incineration to reduce the pollutants contained in the exhaust gas in incineration facilities treating household or industrial waste, or in incineration facilities treating low- and intermediate-level radioactive waste.

An electric dust collection device including a charging unit configured to charge airborne particulate matter, a dust collection unit configured to collect dust by attaching the particulate matter charged by the charging unit, a fan configured to generate airflow in a direction from the charging unit to the dust collection unit, and a power source configured to apply a first voltage to the charging unit, wherein the charging unit includes a discharge electrode installed approximately perpendicular to the process airflow in a first direction and configured to generate ions, a ground electrode installed in a second direction to cross the airflow, and a gradient potential electrode arranged in the first direction to allow the airflow to pass therethrough and to which a second voltage lower than the first voltage is applied, wherein the second voltage gradually decreases from the discharge electrode toward a central portion of the charging unit.

An air conditioner includes an electrostatic precipitator including a charger and a dust collector. The charger includes a plurality of charging electrodes and an auxiliary electrode. The plurality of charging electrodes include a discharge electrode and a ground electrode, configured to generate ions by corona discharge to charge airborne particulate matter. The auxiliary electrode is arranged upstream of the discharge electrode with respect to a ventilation direction, which is an airflow direction, and connected to a ground potential such that while the auxiliary electrode is arranged upstream of the discharge electrode and connected to the ground potential, the auxiliary electrode discharges an ion current diffused upstream of the discharge electrode. The dust collector is configured to collect the airborne particulate matter charged by ions by using Coulomb force whereby the airborne particulate matter is removed from the air before the air is discharged into an air conditioning space.

It is disclosed an apparatus for electrostatic deactivation and removal of hazardous aerosols from air, said apparatus comprising an ionization zone (2) for charging aerosols contained in a stream of supplied air and for obtaining aerosols having negative air ions, a spraying zone (4) for generating positively charged droplets and for absorbing said charged aerosols by contacting them with said generated positively charged droplets, and a collection device for collecting said negative air ions and said absorbed aerosols from said spraying zone (4).