| 摘要 |
PCT No. PCT/SE87/00149 Sec. 371 Date Sep. 16, 1988 Sec. 102(e) Date Sep. 16, 1988 PCT Filed Mar. 23, 1987 PCT Pub. No. WO87/05832 PCT Pub. Date Oct. 8, 1987.A method for supplying an electrically conductive, floating medium, e.g. paint, from a storage system (11) via a feed conduit to a consumption station (12) in which is incorporated an electrostatically chargeable distribution device (29), e.g. a paint spraying gun, for treatment, e.g. painting of treatment units, whereby the medium is supplied to an intermediate storage forming part of the feed conduit between the consumption station and the storage system, and which feed conduit is adapted to be interrupted electrically and physically between the storage system and the intermediate storage by an interruption unit. The purpose is to prevent the electrostatic charge in the spraying nozzle from being transferred to the storage system of the painting plant. This has been solved in that the medium is pumped from the storage system via a first feed conduit to a first closed valve part forming part of the interruption unit, the second valve part of which, which is connected to a second feed conduit, at interconnection thereof establishes a closed medium connection between the feed conduits, that the medium during the interconnection period of the valve parts is pumped to the intermediate storage, whereby the electrostatic charging is interrupted, and that after disconnection of the valve parts the medium is subjected to pressure in the intermediate storage and during electrostatic charging is supplied to the distribution device. |
