A treatment plant and method for treating workpieces, in particular for coating and/or drying vehicle bodies, having a treatment device with a housing in which a treatment space is accommodated. A conveyor system having a multitude of transport trolleys for conveying workpieces through the treatment space, wherein each transport trolley has a chassis and a fastening device for at least one workpiece, which are coupled together by means of a connecting device. Outside the treatment space, there is a guiding area with a travel space for the chassis. The travel space is connected to the treatment space via a connecting passage such that the chassis of a transport trolley can move in the travel space and at the same time the fastening device is entrained in the treatment space and the connecting device extends through the connecting passage. The travel space is defined by a travel space housing and a gas device is present to feed a throughflow gas, in particular air, to the travel space. At least a major part of the throughflow gas can again be discharged from the travel space as exhaust gas, without this throughflow gas reaching the treatment space through the connecting passage.

A paint drying device where leakage of air between a drying chamber and a driving section accommodating chamber is prevented reliably. In the paint drying device in which the drying chamber and the driving section accommodating chamber communicate with each other via a through hole through which a power transmission tool extends, there are provided an air feeding passage for feeding air present outside the drying chamber to the driving section accommodating chamber by an air feeding fan) and an exhaust passage for discharging air in the driving section accommodating chamber to the outside of the drying chamber by an exhaust fan. An air amount adjustment device is provided for adjusting a ratio between an amount of air to be fed to the driving section accommodating chamber via the air feeding passage and an amount of air to be discharged from the driving section accommodating chamber via the exhaust passage.

Leaking of high-temperature gas inside a furnace to the outside of the furnace via a furnace body opening portion and entry of normal-temperature air outside the furnace into the furnace via the furnace body opening portion are effectively prevented. A central vent that forms an airflow curtain in a target object passage region of a furnace body opening portion and left and right side vents that form airflow curtains respectively in gap regions between the target object passage region and left and right side walls of the furnace body opening portion are provided as vents for forming airflow curtains, an airflow fa for forming an airflow curtain blows from the central vent toward the inner side of the furnace diagonally downward at an inclination angle that is smaller than 40° relative to a horizontal direction, and airflows for forming airflow curtains blow from the left and right side vents vertically downward or toward the inner side of the furnace diagonally downward at an inclination angle that is larger than 60° relative to the horizontal direction.

An apparatus and method for the temperature control of objects, in particular for drying coated vehicle bodies, with a temperature control chamber with at least one lock region, a fresh air device for producing fresh air which can be supplied to the temperature control chamber, a circulating air device which extracts exhaust air from the temperature control chamber and produces circulating air which can be supplied to the temperature control chamber, an air intake device for supplying air to the temperature control chamber, and a control device. A fresh air volume flow and a circulating air volume flow can be supplied to the air intake device, and the control device is configured to control the fresh air volume flow and the circulating air volume flow in such a manner that the overall volume flow which is supplied to the temperature control chamber does not fall below a lower limit.

A drying system includes a nozzle attached to an air supply duct of a drying chamber that blows out heated air inside the duct toward an object to be dried inside the chamber. The nozzle includes a horn-shaped inner-side surface made of pairs of first and second inner-side surfaces that respectively face each other in first and second directions, an opening width of the second surfaces in the second direction gradually increasing forward in a direction in which the air is blown and being 2 to 25 times inclusive larger than an opening width in the first direction. The drying system includes: the duct with the nozzles; a feeding device feeding air to the duct; and a heating device heats the fed air. The feeding device feeds air to the duct such that the air blown out from the nozzle spreads more in the first direction than in the second.

A plant for drying objects which release volatile substances may include: a drying tunnel; a conveying system configured to convey the objects through the drying tunnel; a plurality of sensors arranged along the drying tunnel; and/or a plurality of air exchange units. The sensors may be configured to measure a concentration of the volatile substances along the drying tunnel. The air exchange units may be controlled by the sensors to keep the concentration of the volatile substances in the drying tunnel below a pre-established value. A method for keeping volatile substances below a pre-established value within a plant for drying objects may include: measuring with sensors concentration of the volatile substances at points along the drying tunnel; and/or operating air exchange units, according to the concentration of the volatile substances measured by the sensors, to keep the concentration of the volatile substances in the drying tunnel below the pre-established value.

A dryer unit for a vehicle wash system including an upper head portion with an air inlet. An impeller having a plurality of vanes rotatably disposed adjacent the air inlet. The impeller configured to rotate in a predetermined direction about an axis of rotation to draw air into the upper head portion through the air inlet. A flow channel formed in the upper head portion around a periphery of the impeller. A cut-off portion located adjacent a discharge area of the flow channel. A body portion disposed generally beneath the upper head portion with respect to a direction of fluid flow through the dryer unit. A plurality of outlet nozzle portions integrally formed with the body portion and in fluid communication with the air inlet. The plurality of nozzle portions configured to direct high velocity air flow toward a vehicle treatment area. At least one of the plurality of nozzles being located above the cut-off portion.

Flue gases are produced in a combustion chamber of a burner unit, in particular for the combustion of exhaust air. Combustion gas can be supplied to a gas burner via a combustion gas line and feed air, in particular exhaust air that can be used as feed air, is supplied to said burner via a feed air line. The feed air is divided into primary air and secondary air by a device. The primary air is mixed with the combustion gas, in a mixing zone, to form a primary air/combustion gas mixture, said primary air/combustion gas mixture being supplied to the combustion chamber. A flue gas re-circulation system comprises a through-flow chamber which is connected to the combustion chamber and in which the secondary air is mixed with the flue gases occurring in the combustion chamber to form a secondary air/flue-gas mixture. The secondary air/flue-gas mixture is supplied to the primary air/combustion gas mixture in the combustion chamber by means of a device. At least one internal cylindrical surface of the through-flow chamber forms a Coanda profile in the direction of flow. A device for the temperature control of objects, in particular for drying painted vehicle bodies, comprises a temperature-control tunnel that is accommodated in a housing and that defines at least one tunnel section comprising at least one air outlet and at least one air inlet. A heating assembly, in which a hot primary gas can be generated by means of a burner unit of this type, is associated with the tunnel section.

A transport system, which is designed in particular for a dryer for drying workpieces, such as vehicle bodies, and which has a plurality of transport carts. The transport carts can be moved on a rail system in a transport direction. Workpieces can be transported by means of the transport carts. Each transport cart has a transport cart chassis. The transport cart has a fastening device, which is designed to establish a connection between the transport cart and a workpiece carrier in order to transport the workpiece carrier by means of the transport cart. The fastening device has thermal insulation, which impedes heat transfer between a workpiece carrier and the transport cart.

The present invention is a drying system for a car wash facility. In various aspects, the drying apparatus according to the system may include a plurality of nozzles, with each nozzle emanating a jet of air that impacts an upper surface of a vehicle with the jets arranged to successively force water on the upper surface laterally with respect to a vehicle centerline toward sides of the vehicle. In various aspects, the methods of use of the drying apparatus may include the step of receiving a vehicle in the drying apparatus, and the step of successively forcing water on the upper surface of the vehicle laterally with respect to the vehicle centerline toward sides of the vehicle by impacting the upper surface of the vehicle with a plurality of jets of air emanating from a corresponding plurality of nozzles.