SU44038A1 - Dosing device for solutions - Google Patents

Description

The proposed dosing device for solutions is based on the principle of using a Mariotte vessel with a capillary tube to limit the access of air. Measurement is performed by evaluating the position of the fluid level in the outer tube of a differential pressure gauge consisting of two tubes entering one another. The inner tube is connected to the outlet of the Marriott vessel, and the outer tube, which is in communication with the atmosphere, is equipped with an outlet tap.

The drawing shows a vertical section of the device.

The vessel is filled with chlorine water of a certain concentration and then hermetically sealed. A differential pressure gauge 4 is connected to the vessel / bottom. The inner tube 5 of this differential pressure gauge is connected to the upper end of the pressure vessel 7. The outer tube 6 is connected to the atmosphere at the top. The lower end of the outer tube differential pressure gauge is equipped with a regulating valve 3.

A capillary tube 2 is opened through the vessel's cap / tube, terminating at the level of O-O vessel.

When bleach water flows out of the tap 3, air will flow into tube 2 and accumulate at the level of bleach water in the vessel.

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If air flowed through tube 2 without pressure loss, then the outflow from valve 3 would occur under the pressure of the atmosphere plus a permanent column.

Due to the capillary of tube 2, the atmospheric air entering through the capillary loses, in its pressure, a value that is greater, the more air currently passes through the capillary, i.e., the more 3 of the chlorine water flows out of the tap.

The outflow will occur from tap 3 under the influence of (H-j-aTM-x). In the vessel / at the O-O level, there is always atmospheric pressure, which is the sum of the weight of the variable column of water in the vessel and the variable pressure of air confined in the cavity of the vessel above the water level.

Since the outer tube 6 of the differential pressure gauge 4 is in communication with the atmosphere, the water level therein will be at an O-O level when there is no outflow, and when the outflow of chlorine water from the tap 3 is lowered by the outer tube 6 of the pressure gauge, t the more bleed out of chlorine water at the moment.

On the contrary, by lowering the water level in the outer tube 6 of the manometer by the value of X with respect to the level O-, it is possible to judge the fluid flow in. this moment.

Vessel 7 may be taken in the form of a bottle with or without a tube. In the latter case, for the device to drain the liquid, the siphon tube must be passed through the cork in the bottle's throat.

The described metering device can be used to dose not only bleach water, but also any solutions, such as coagulant soda, etc., in those cases when a uniform flow of fluid is required, taking into account its quantity passing at the moment.

The subject matter of the invention.

A dosing device for solutions based on the principle of using a Mariotta vessel with a capillary tube, characterized by the use of a differential pressure gauge 4, consisting of two tubes entering one another, of which are internally connected to the outlet opening of the Marriott vessel, which has a connection with the atmosphere Equipped with an outlet tap 3.