Disclosed herein is provide an electrostatic precipitator capable of allowing a charger to be thin while suppressing ozone generation.

The electrostatic precipitator 1 includes a charger 10 provided with a high voltage electrode 11 receiving a high voltage from a high voltage generating circuit 40 and a counter electrode 12 facing the high voltage electrode 11 and receiving a reference voltage from the high voltage generating circuit 40, and configured to charge suspended particles by generating a discharge between the high voltage electrode 11 and the counter electrode 12; and a dust collector 20 disposed in the downstream side of an air flow direction of the charger 10 and configured to collect the suspended particles charged by the charger 10.

The present disclosure envisages an air purification system. The system comprises includes a shell, a blower, an electrode and a plurality of spikes. The shell has electrically-grounded wall(s), an inlet, and an outlet. The blower generates flow of air through the shell. The electrode is fitted within the shell between the inlet and the outlet and is electrically isolated from the shell body. The spikes extend from the electrode. The spikes have tips spaced apart from the inner surfaces of the walls and generate a corona between the tips and the inner surface of the walls when an high voltage electric current is passed through the electrode and thereby ionize gases and charge particles present in the air resulting in the particles being deposited on the inner surface of the walls of the shell.

Provided is a solvent separation method and a solvent separation apparatus that make it possible to efficiently retrieve the thermal energy possessed by an exhaust atmosphere released in a solvent-removal step to suppress reductions in a temperature of the exhaust atmosphere. In the solvent separation method and the solvent separation apparatus, a vaporized solvent is removed from a gas while heat-exchange between the gas within a condensation part and the gas within a dust-collection part is conducted by using a heat exchange part that is placed between the condensation part that introduces the gas into a first direction and the dust-collection part that introduce the gas into a second direction opposite to the first direction the gas discharged from a downstream side of the condensation part.

The brush device comprises: a plurality of discharge brushes formed by bundling fibrous wire electrodes; a strip-shaped support board including a first plate-shaped member and a second plate-shaped member which hold the discharge brushes from both sides; and a joining means for joining the first plate-shaped member and the second plate-shaped member. The discharge brushes are disposed at intervals in a longitudinal direction of the support board with their tip end portions protruding from the support board along a width direction of the support board, and the joining means is disposed adjacent to each of the discharge brushes.

A ventilation device may include a first air treatment device and an ionizer. The ionizer may include an electrode. A counter-electrode of the ionizer may be electrically conductively connected to the first air treatment device.

An electric dust collecting device and an air conditioner having the same are disclosed. The electric dust collecting device includes a first filter unit including a plurality of discharge electrode plates which are spaced apart from each other and have spaces defined therebetween, a high voltage generator electrically connected to all of the plurality of discharge electrode plates, and a second filter unit disposed downstream of the first filter unit in an air flow direction and connected to a ground to cause corona discharge between the discharge electrode plates and the second filter unit, whereby particles electrically charged by corona discharge are collected at the second filter unit. The first filter unit has a simplified structure, and cleaning effect is improved.

An electrostatic precipitator integrated with a double-skin facade of a building, includes: an outer window installed at an outdoor side of the building; an outer upper opening and an outer lower opening installed at upper and lower portions, respectively, of the outer window for indoor ventilation; an inner window providing a hollow layer between the inner window and the outer window by being installed at a room side facing the outer window; an inner upper opening and an inner lower opening installed at upper and lower portions, respectively, of the inner window for ventilation; at least one discharge electrode charging particles introduced into the hollow layer through the outer lower opening by being installed in the hollow layer; and dust collecting electrodes precipitating charged particles by being installed in contact with the hollow layer.

An ion generating device can include a housing having an opening, an anode and a cathode disposed within the housing and having a space between them in fluid communication with the opening, a power source having a negative terminal and a positive terminal with a first connection between the negative terminal and the anode and a second connection between the positive terminal and the cathode, and an air mover disposed to direct an air flow through the space and out of the opening.

The present disclosure is directed methods and apparatus of a V-Bank filtration system capable of maintaining desired air flow rates while effectively filtering the air. These methods and apparatus charge particles and then capture those particles in a filter medium. Once captured in the filter medium, micro-organisms are exposed to high energy electric fields that may degrade and ultimately destroy the captured micro-organisms. Electric fields generated within portions of the V-Bank filter apparatus may also be contained within the portions of the filter apparatus based on exterior parts of these portions being grounded at Earth ground potential. Magnetic fields (or electro-magnetic fields) associated with the generated electric fields may also be contained within the portions of the apparatus based on the exterior parts of these portions being grounded.

An ion filtration air cleaning device for cleaning air by use of electrostatic ion attraction. Air having suspended particles is drawn into the device through an inlet by a fan. An ionization source near the inlet generates ions. Electrical charge transfers from the ions to the suspended particles. The fan pushes the air and suspended charged particles toward an outlet. A filter located adjacent to the outlet operates by electrostatic attraction and filters the charged particles from the air, allowing cleansed air to be released from the device, with a reduced level of charged particle emission.