SU372452A1 - LIQUID DISPENSER - Google Patents

Description

one

The invention relates to a technique for dispensing a liquid in a predetermined quantity, for example, in containers, in the food, chemical and other industries.

Liquid dispensers are known, containing a hermetically sealed fixed supply tank with two tubes, one ends connected to the tank above and below the level of the consumable liquid, a measuring tank with liquid, the level of which, in the absence of a dose, is not lower than the free ends of the tubes pubescent pipe, hermetically connected to the bottom of the tank with the possibility of vertical mixing. The upper end of the drain pipe is located at the level of the liquid in the measuring tank with no dose in it.

In known dispensers, when a liquid from a supply tank enters the measuring tank, a gap occurs between the consumed liquid and the liquid in the measuring tank, with the result that when a dose is formed, the consumed liquid is poured onto the surface of the liquid in the measuring tank, causing the formation of foam. Cutting off the dose during mixing, measuring tank also affects the accuracy of the measurement due to fluctuations in the surface of the liquid.

The dispenser according to the invention is characterized in that, in order to increase the dosage accuracy, free

the end of the tube connected to the tank above the level of the fluid being consumed is made in the form of a lifting-lowering nozzle and rigidly connected to the drain pipe, and the measuring tank is stationary. The lifting and lowering nozzle is made with a bevel in the lower part.

FIG. 1 shows the dispenser in the position “no dose; in fig. 2 - the same in the position “dose collected.

The stationary hermetically sealed reservoir / is provided with two tubes 2 and 3 for the passage of fluid and air connected at one end to the reservoir, respectively, below and above the level of the fluid to be consumed. The tube 3 is provided with a sleeve 4, with which the lifting-lowering nozzle 5 is hermetically coupled with the bevel 6 in the lower part. The nozzle 5 is rigidly connected to the drain pipe 7, hermetically coupled with the possibility of reciprocating motion with the vertical pipe 8 passing through the bottom of the stationary measuring tank 9 located below the supply tank /. The lower end of the tube 2 and the bevel 6 are located in the measuring tank 6 below the upper end of the drain pipe 7. In the upper part of the tank / there is a supply pipe 10 with a valve //. The tube 2 is also equipped with a valve 12.

The dispenser works with the valve 11 closed and the valve 12 open. In the lower position

The drain pipe 7 determines the level of the liquid in the tank 9. When raising the pipe 7 by a certain amount (depending on the required dose), the nozzle 5 also rises, opening the inlet (bevel 6) that was blocked by the liquid. At the same time, the atmospheric pressure through the tube 3 squeezes out the consumable liquid from the tank / into the measuring tank 9. The liquid level in the measuring tank rises. Dose cut-off occurs after shutting off the fluid in the tank 9 of the inlet (bevel 6) of the nozzle 5, since in this case the liquid column in the supply tank is balanced by atmospheric pressure. To dispense the dialed dose, the discharge pipe 7 (with the nozzle 5) is lowered to the lower position, with the result that the dialed dose is poured from the measuring tank through the pipe into the container. Expendable

the tank is filled with the valve 12 closed and with the inlet opening (bevel 6) of the nozzle 5 open.

Subject invention

A liquid dispenser containing a hermetically sealed supply tank and a measuring vessel located beneath, which are connected to each other by gas and liquid nozzles, the lower ends of which are located below the upper end of the drain nozzle, which can be moved vertically through the bottom of the measuring vessel, characterized in , in order to improve accuracy, the gas pipe is provided at the lower part with a lifting and lowering nozzle rigidly connected to the drain pipe, the lower end of the nozzle being made with a bevel.