SU59123A1 - Shut-off valve for hydropneumatic installations - Google Patents

Description

The invention relates to a shut-off valve for hydropneumatic installations, the purpose of which is to prevent compressed air from escaping from the reservoir into the water supply network.

The valve is made in the form of a glass installed under the pressure pipe for locking it up when it is raised due to acquired buoyancy when the water level in the tank drops to the upper edge of the glass.

The valve device makes it possible to reduce the inert supply of water in the tank to the smallest size.

The drawing shows: fng. 1 is a vertical section of the valve and FIG. 2 is a vertical section of the reservoir, indicating the location of the valve therein.

The valve is a metal cup 1, mounted in the bowl 3 of the tank, bottom down under the pressure pipe 2. Attaches to the bottom of the glass by means of a rubber cushion ring 6. On the side surface of the glass there are two rows of holes. The lower holes 4 of small diameter are intended for access to a glass of water while raising its position before the gasket contacts 6

with pipe 2, which ensures greater density, due to the formation of a hydraulic valve.

The upper holes 5 are located above the line of immersion of the glass I in water of its own weight by about 100 mm and serve to reduce the dead volume of water in the tank. With the same purpose, the bowl 3 is arranged.

The operation of the valve is as follows.

When the water level in the tank is above the upper edge of the glass, the latter will be filled with water and under its own weight will be at the bottom of the bowl 3. With this valve position, water can freely enter and exit the tank through pipe 2. As soon as the water level is dismantled from the tank will drop to the mark of the upper edge of the glass, the flow of water into the glass will drastically reduce, and if the water analysis through the pipe 2 will be more water flow into the glass through the holes, the glass will gain buoyancy and rise up kryva thereby opening the outlet pipe 2 and holding the air from leaking. As soon as the opening of the pipe 2 is closed by the gasket 6, the beaker is filled with water to the level of water in the bowl 3. The filled pipe seat 2 with water allows for better retention of air in the tank. The valve will be in the closed state until the pressure inside the tank is comparable to that of the pipeline. The subject matter of the invention. j Shut-off valve for hydropneumatic installations, which are sh; and yi with the fact that it is made in the form of a glass, installed under the pressure pipe w, with its tube for locking it when raising it due to acquired buoyancy when the water level in the tank drops to the upper edge of the glass.

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