CS243036B1 - Dosing device for continuous pressure-less liquid dosing - Google Patents

Description

(54) Dispenser for continuous unpressurised dosing of fluids

The described dispenser is intended for continuous non-pressurized dispensing of fluids and is able to ensure continuous dispensing of the set amount, while the dispenser reservoir does not interrupt its operation.

The dispenser is designed mainly for disinfection of water in wells, springs and waste water disinfection.

The solution relates to a constructionally simple, operationally reliable and economical design of the dispenser.

The principle of the new dispenser solution consists in that a float carrying a horizontal arm is placed on its level in the liquid-filled reservoir at the end of which the end of the flexible pipe is suspended, the second inlet end of this conduit exposing in the lower part of the container. By the length of the hinge supporting the outlet end of the flexible conduit, the rate of fluid flow from the reservoir can be adjusted.

In addition to the above mentioned options, the dispensers can be used in chemical and food processing plants, etc.

The present invention relates to a dispenser for the continuous, non-pressurized dispensing of fluids. It can be used for dosing of liquid reagents in chemical, water and food processing plants for dosing of flotation additives in medicine, etc.

The prior art dispensers for continuous, pressureless fluid dispensing use sealed containers of dispensed fluid and require airtight closure. The presently used dispensers of the above-mentioned kind are designed so that the container of the container is provided with a tubing at the bottom and the amount of the dosed liquid is determined by adjusting the discharge mouth of the tubing to a certain occurrence.

From above, a thin capillary tube is introduced into the airtightly sealed dispenser fluid container, the lower end of which extends to a predetermined depth below the level of the dispenser fluid in the container, and the upper end of the capillary tube is connected to an external atmosphere via a drying filter. ’

The flow rate of fluid from the reservoir is then determined by the height difference between the spout of the spout and the lower end of the venting capillary tube ». This dispenser is not usable in places with short-term temperature fluctuations and requires a perfect airtight closure of the dosing fluid reservoir. This places certain demands on care in handling and refilling the container with fluid and increases the likelihood of erroneous dosing in the case of careless container sealing.

However, another type of dispenser intended only for the disinfection of water in stages is a diffusion disinfection apparatus consisting of a container having an opening through which the disinfectant diffuses into the water in the well in which the apparatus is immersed.

However, this apparatus has very limited use and does not deliver the disinfectant evenly. Furthermore, there are dosing devices using different dosing mechanisms, so-called dosing pumps, eg piston pumps, which, although they also allow pressure dosing, but whose production due to the diverse properties of dosed fluids are expensive and often require the use of special materials and technologies.

The above drawbacks are eliminated by a dispenser for continuous, non-pressurized fluid dispensing, in which a float is disposed in the reservoir at the level of the dispensed liquid, carrying a hinge arm, which consists in hanging one end of the flexible pipe and the other end of the flexible pipe. it is tightly mounted and terminates in the lower portion of the dispenser fluid reservoir.

«

An example of a dispenser is shown in the attached drawing.

The device according to the invention consists of a dosing fluid reservoir 4 provided in the bottom opening 2, in which the lower inlet end 5 of the flexible pipe 5 is tightly connected. The upper outlet end 15 of the flexible pipe 4 is hinged at one end of the arm 4 by means of a hinge £ and at the other end of the arm 4 is hung by a hinge 8} at the other end of the arm. the reservoir at the level of the dosed liquid.

The cartridge 8 is then mounted on two vertical rods 6, 2, which are connected at their upper ends to a horizontal rod 5, which is provided with a guide hole 44 in the middle through which a guide rod 12 is fastened through the lower end in the middle of the upper part of the float.

The flow rate of the dispensed fluid is determined by the height difference between the upper level of the fluid in the reservoir and the upper outlet end of the flexible pipe. As the level of the fluid to be dispensed in the reservoir 4 decreases, the float 5 carrying the upper outlet end 15 of the flexible pipe 5 by means of the arm 8 and the suspension 11 decreases.

The difference in hydrostatic pressure between the upper discharge end 19 of the flexible pipe 8 and the upper level of the dosing fluid in the reservoir 5 remains constant even with the decreasing level of the dosing fluid in the reservoir 5, thereby ensuring a constant flow rate.

The dispenser of the invention can be used wherever continuous dosing of fluids is required. In a slightly modified form, it was originally designed as a dispenser for water disinfection in wells and waste water disinfection. This dispenser can also be used in other sectors of the national economy.

The advantage of the dispenser is its simple construction, easy operation and handling and high reliability. If suitable materials are used, the dispenser can also be used for dosing very aggressive fluids. With a suitable design, it could also be used for the continuous casting of metals or other molten materials.

Claims (1)

SUBJECT OF THE INVENTION A dispenser for continuous, non-pressurized dispensing of liquids, in which a float is mounted on the dispenser of liquid to be disposed on its surface, carrying a suspension arm, characterized in that the outlet end (15) of the flexible pipe (3) and the other inlet end (5) of the flexible pipe (3) is disposed at the bottom of the reservoir (1) with the dispensed fluid.