There is provided an energy recovery device for recovering energy from exhaust air which flows through a discharge line. The energy recovery device includes a heat exchanger device having at least a first heat exchanger unit and a heat pump, wherein the heat pump is connected at the high-temperature side thereof to the first heat exchanger unit and is arranged at the low-temperature side thereof in the exhaust air flow in the exhaust air flow direction downstream of the first heat exchanger unit or is connected at the low-temperature side thereof to a second heat exchanger unit which is connected downstream of the first heat exchanger unit in the exhaust air flow direction.

Plasma spray apparatus for coating substrates, including at least a working chamber including a plasma torch and at least a substrate support, in which an inert gas or a mixture of inert gases is contained at a pressure which is close to the normal pressure, and at least a gas circuit, in communication with said working chamber, including recirculating means of the inert gases contained in said working chamber. The recirculating means include a closed loop, including a blower and a first heat exchanger communicating with said working chamber for extracting the inert gases and supplying a first fraction of the cooled inert gases back into a first portion of the working chamber, and at least a path, communicating with said closed loop and including a compressor and a second heat exchanger for supplying a second fraction of the cooled inert gases into a second portion of the working chamber.

Spray booth (21) for applying paint on basically flat parts (22), said spray booth having a plenum (24) and comprising a conveying system (25) for conveying the flat parts (22) to be painted, at least a device (23) for applying paint on said moving parts, and at least a suction system, wherein the plenum (24) of the spray booth has a semi-cylindrical shape, having its axis perpendicular to the direction of the advancing part (22).

Spray booth (21) for applying paint on basically flat parts (22), said spray booth having a plenum (24) and comprising a conveying system (25) for conveying the flat parts (22) to be painted, at least a device (23) for applying paint on said moving parts, and at least a suction system, wherein the plenum (24) of the spray booth has a semi-cylindrical shape, having its axis perpendicular to the direction of the advancing part (22).

Disclosed is a work booth safety system for an automotive body repair shop including a work booth with a ventilation system for evacuation of polluted air and an entrance closed or opened by a door or drape. The work booth is configurable into three different work modes: 1) For preparative dent repair, the entrance is kept open and electrical sockets and compressed air supply is deactivated. Ventilation air flow is mainly directed in a horizontal direction and evacuated through a wall ventilation outlet duct. 2) For spray application of a body sanding foundation, the entrance is closed and electrical sockets are deactivated, the compressed air supply is activated, and the ventilation air flow matches that of work mode 1. 3) For welding, the entrance is closed and electrical sockets are activated. The compressed air supply is deactivated and the ventilation air flows vertically upward through a roof ventilation outlet duct.

Disclosed is a work booth safety system for an automotive body repair shop including a work booth with a ventilation system for evacuation of polluted air and an entrance closed or opened by a door or drape. The work booth is configurable into three different work modes: 1) For preparative dent repair, the entrance is kept open and electrical sockets and compressed air supply is deactivated. Ventilation air flow is mainly directed in a horizontal direction and evacuated through a wall ventilation outlet duct. 2) For spray application of a body sanding foundation, the entrance is closed and electrical sockets are deactivated, the compressed air supply is activated, and the ventilation air flow matches that of work mode 1. 3) For welding, the entrance is closed and electrical sockets are activated. The compressed air supply is deactivated and the ventilation air flows vertically upward through a roof ventilation outlet duct.

A modular apparatus for coating glass articles with a chemical compound includes a coating hood section (10a) including a series of interconnected walls (12) defining an interior chamber (18, 20a, 20b) having an inlet (32) and an outlet (44), a blower (24) positioned at least partially in the interior chamber (18, 20a, 20b) to carry air from the inlet (32) towards the outlet (44); and a connector (50) for connecting the coating hood section (10a) to an identical coating hood section (10b). The connector (50) for connecting being defined on at least one of the interconnected walls (12) of the coating hood section (10a).

A modular apparatus for coating glass articles with a chemical compound includes a coating hood section (10a) including a series of interconnected walls (12) defining an interior chamber (18, 20a, 20b) having an inlet (32) and an outlet (44), a blower (24) positioned at least partially in the interior chamber (18, 20a, 20b) to carry air from the inlet (32) towards the outlet (44); and a connector (50) for connecting the coating hood section (10a) to an identical coating hood section (10b). The connector (50) for connecting being defined on at least one of the interconnected walls (12) of the coating hood section (10a).

A method for forming a thin film having durability at a low cost is provided. A film formation apparatus 1 is used in the film formation method. The apparatus 1 comprises a vacuum container 11 in which a substrate 100 is placed at a lower part, a vacuum pump 15 for exhaust inside the container 11, a storage container 23 for storing a coating agent 21 provided outside the container 11, and a nozzle having an ejection part 19 capable of ejecting the coating agent 21 at its one end. A solution including two or more kinds of materials is used as the coating agent 21. The solution is ejected to the substrate in an atmosphere at a pressure set based on vapor pressures of respective materials composing the solution.

A method for forming a thin film having durability at a low cost is provided. A film formation apparatus 1 is used in the film formation method. The apparatus 1 comprises a vacuum container 11 in which a substrate 100 is placed at a lower part, a vacuum pump 15 for exhaust inside the container 11, a storage container 23 for storing a coating agent 21 provided outside the container 11, and a nozzle having an ejection part 19 capable of ejecting the coating agent 21 at its one end. A solution including two or more kinds of materials is used as the coating agent 21. The solution is ejected to the substrate in an atmosphere at a pressure set based on vapor pressures of respective materials composing the solution.