PT102090A - Device for providing, measuring and metering injectable liquids in a general conduit - Google Patents

Abstract

The invention relates to a device for supplying, measuring and metering injectable liquid in a general conduit, which, applying especially to the supply, metering and measuring of one or more liquids from corresponding container tanks for a water-conveying system, makes it possible to inject fertilizers or other liquids, such as manures, sera, vitamins and similar products, that have to be supplied to irrigation systems or to drinking-water supply systems or to systems for treatment with fertilizers in heaters and similar installations, which comprises a Venturi tube 1 to which is fixed a lateral support 4 equipped with a non-return valve 15 that allows the passage of liquid to the inside of the tube 1 and prevents the liquid's return, and to which support are fixed threaded rods 5, which at their opposite or free end constitute a fixing means for a second support 6 on which there is a passage block 11 for the liquid that it is desired to supply and that is contained in a tank to which the aforesaid block 11 is fitted, this block 11 having a flow-regulation and measurement damper, whilst between the two supports 4 and 6 a tube 7 is hermetically positioned with the corresponding sealing gaskets 8 and 9 at the ends, which tube 7 consists of a flow-measuring device in communication, on the one hand, with the passage of the liquid from the corresponding tank and, on the other hand, with the actual Venturi tube 1 via the non-return valve, the aforesaid tube, which constitutes the flow- measurement device, incorporating a conical tip lower float 14. <IMAGE>