CS253440B1 - Air-conditioned cab for electrostatic powder coating line µ - Google Patents

Abstract

Air-conditioned cabin for an electrostatic coating line of powder enamels, consisting of a peripheral shell, provided on the front walls with an input and output transport slot, on the side wall with input openings, further with an air-conditioning unit and an exhaust fan of the integrated electrostatic coating cabin, provided with an exhaust pipe. The problem to be solved is to create an air-conditioned cabin with lower energy requirements. This is achieved by the exhaust pipe of the exhaust fan being shaped like an expander and opening into an expansion chamber, separated from the working space of the air-conditioned cabin by a permeable damping wall and bounded on the other sides by a secondary peripheral shell.

Description

The invention relates to an air-conditioned cab for an electrostatic powder enamel coating line consisting of a peripheral shell provided with inlet and outlet conveyor apertures on the front walls, inlet openings on the side wall, an air conditioning unit and an exhaust fan integrated with an electrostatic spray booth.

According to the prior art, the exhaust duct of an exhaust fan is discharged into the surrounding area outside the production hall in which the air-conditioned cabin is located. The air-conditioned cabin is single-room. Such a solution necessitates the treatment of large amounts of process air, increasing operating costs.

The above-mentioned disadvantages are overcome by the air-conditioned cabin according to the invention, characterized in that the exhaust duct of the suction fan is shaped as an expander and opens into an expansion chamber separated from the working space of the air-conditioned cabin by a permeable damping wall. .

The main advantage of the air-conditioned cabin according to the invention is a significant saving of freshly supplied air-conditioned air and thus also energy and resp. operating costs.

From a design point of view, it is advantageous if the exhaust fan is located on the ceiling of the secondary cladding. This expediently utilizes the outer staircase of the cab and achieves the shortest pipe connections, which has a beneficial effect on the efficiency of the fan.

An example of an embodiment of an air-conditioned cabin according to the invention is shown in the drawings, in which: FIG. 1 is a front sectional view of the cab; and FIG. 2 is a cross-sectional side view of the left portion of the plane A-A and the right portion of the plane B-B of FIG. First

The air-conditioning booth for the electrostatic powder enamel coating line consists of a cladding 1 provided with inlet and outlet conveying apertures 2 on the front walls. It is further provided with an air-conditioning unit 3 and an exhaust fan 4 of an integrated electrostatic spray booth 5 with which the fan 4 is connected to the exhaust duct 6. The exhaust duct of the exhaust fan 4 is expander-shaped 7 and opens into an expansion chamber 8 separated from the work space 9 of the air-conditioned cabin through a permeable damping wall 10, composed of separate segments. The expansion chamber 8 is located next to the working space 9 and is delimited from the other sides by the side cladding 11. The exhaust fan 4 of the integrated electrostatic coating booth 5 is located on the ceiling of the side cladding 11.

At the start of the application operation, an exhaust fan 4 of the integrated electrostatic spray booth 5 is connected, which provides the necessary technological vacuum in the spray booth 5. Extracted air expands through the expander 7, which reduces the flow rate of air blown into the expansion chamber 8. further reducing the velocity of the air that passes from the chamber of expansion chamber 8, where there is a slight overpressure, to the working area and where the pressure is maintained close to normal atmospheric pressure.

The recirculation of the process air-conditioned air thus achieved, the operation of the air-conditioning unit 3 is limited only to topping up the amount of air-conditioned air that escapes through the inlet and outlet slots 2.

SUBJECT

An air-conditioned booth for an electrostatic powder enamel coating line comprising a peripheral shell provided with inlet and outlet conveyor apertures on the front walls, inlet side openings on the side wall, an air-conditioning unit and an exhaust fan integrated electrostatic coating booth equipped with an exhaust pipe. that the exhaust pipe of the exhaust fan (4) is arranged in the shape of an

Claims (2)

OBJECT 1. An air-conditioned cab for electrostatic powder coating enamel lines, consisting of a cladding fitted with inlet and outlet conveying slots on the front walls, inlet side openings on the side wall, an air conditioning unit and an exhaust fan integrated in the electrostatic coating cabin, equipped with an exhaust manifold, characterized by that the exhaust conduit of the exhaust fan (4) is shaped to expand-out (7) and opens into an expansion chamber (8) separated from the working space (9) of the air conditioning cabin by a permeable damping wall (10) and bounded by other sides by a side cladding (11). An air-conditioned cab according to claim 1, characterized in that the exhaust fan (4) of the integrated electrostatic coating booth (5j is located on the ceiling of the side peripheral shell (11). 2 sheets of drawings 253440 FIG. 253440 FIG-2. il n - Severografia, n, p, race 7, Most Price 2.40 KCs