DOSING DEVICE PROVIDED WITH ACOUSTIC SIGNAL MEANS Russian patent published in 2017 - IPC C02F1/68 

FIELD: machine engineering.

SUBSTANCE: invention relates to the dosing device which is used to add small amounts of additive to liquid flow in a pipe, in general, in water flow during liquid flow past the dosing device. The dosing device (1) is provided with an additive (2) for delivering a dose of additive to liquid which flows in the pipe, and this device (1) first includes a nozzle (3) with an inlet (4) and an outlet (5) for connecting the device (1) to the pipe, a body (6) with a hole which is connected to the nozzle (3) and provided with fastening means for fastening the body (6) to the nozzle (3) with volume containing the additive (2), the dosing device (1) is provided with sound means which are blocked by the presence of said additive (2) and unlocked when the additive (2) completely or almost completely consumed, whereby the sound means generate sound in unlocked state by mechanical means under action of the liquid flow, and at that the sound means take the form of a piston with a head movably connected to a tubular body (12) connected to fastening means (19), wherein the sound means have total specific gravity lower than water, and the fastening means (19) are located in the section of the dosing device, where the additive is located and which is used as the last one, where the fastening means are blocked by the additive (2), gripping or enclosing the fastening means (19) until the additive (2) is consumed and the sound means are unlocked, according to the invention, the piston with its head is suitable and it also relates to the channel wall which is located outside the body volume (6) which is defined by the first wall (8a), if the head produces a mechanical sound or interacts with concentric rotating blades which are moved along the fixed gear ring if the head is provided with means for interacting therewith so as to generate a crack sound.

EFFECT: invention provides the dosing device equipped with sound means which are blocked by the presence of the additive and unlocked when the additive is completely or almost completely consumed, and the sound means generate sound in the unlocked state under the liquid flow effect through the device, and this is carried out mechanicaly.

18 cl, 18 dwg