Installation for cleaning different objects

Installation (1) for cleaning various objects, such as paint guns (2), by means of a cleaning fluid such as a solvent, of the type that comprises:

• a closed-loop washing circuit (5A, 5B, 5C, 5D) that is found between a washing fluid storage drum (3) and a cleaning chamber (4) that contains the products to be cleaned, and
• a rinsing circuit (7A, 5B, 5C, 5D) that is found between a rinsing fluid reserve (6) and washing chamber (4) whose contents are dumped into cleaning fluid storage drum (3),
• a single pump (8) that is placed on a section (5B, 5C) of circuit common to the washing and rinsing circuits and extending between an at least three-way valve (9) that has at least two positions (washing/filling-rinsing) and cleaning chamber (4),
• at least one so-called routine mode of operation that comprises at least two programs, called respectively washing and rinsing, selected based on the position occupied by the valve, whereby each program corresponds to a circulation of the cleaning fluid in the corresponding circuit by means of pump (8),
• characterized in that the installation also comprises means for controlling the operation of pump (8) that consist of at least means for detecting a predetermined amount of fluid in washing fluid storage drum (3) combined with means for detecting the position (washing/filling-rinsing) of valve (9) to make possible, in particular after installation of a new reserve (6) of clean fluid, a start-up of the installation by executing a preliminary program for filling washing fluid storage drum (3) during which pump (8), with valve (9) in the rinsing position, transfers a predetermined amount of fluid from rinsing reserve (6) to washing fluid storage drum (3) until said amount is obtained in drum (3), whereby the detection of said amount allows a subsequent, so-called routine, operation of the installation.