SU885468A1 - Float-actuated closure - Google Patents

Description

(54) FLOATING VALVE

I

The invention relates to water supply, and more specifically to the equipment of water towers having a combined feed-flow tube.

A known structure of a float valve, installed, for example, on the stand of the supply pipe, includes a stationary body with openings for water passage, inside which a piston is mounted, connected to the float by means of rod 1.

A disadvantage of the known float valve is the impossibility of maintaining the level within certain limits and flow regime, which is necessary, for example, in water towers.

The purpose of the invention is to increase efficiency. use by providing a predetermined flow of water.

  To achieve this goal, a float valve containing a fixed body, inside of which a piston with a float is placed, the body is provided with two horizontal diaphragms and a check valve mounted on the side wall between them. The distance between the diaphragms is equal to the difference between the maximum and minimum allowable water levels in the tower. To properly orient the piston relative to the orifices in the diaphragms, the piston rod is placed in the direction, tube, mounted on the bolt, and supplied; centering elements.

To pass water into the tank, the guide tube is made perforated in its lower part.

The piston is equipped with sealing elements that allow you to reliably close the holes in the diaphragms.

FIG. 1 shows a float valve, a general view; in fig. 2 - piston pop shop shutter.

15

The float gate contains a stationary body I, made in the form of a continuation of the supply and flow pipe 2 of the tank 3 of the water tower. The end parts of body 1 are formed by horizontal fragments 4 and 5 with central round holes. On the side opening of the housing 1 between the diaphragms 4 and 5 is installed a check valve 6. In the housing 1 is placed q

with a gap, a piston 7, on which the sealing elements 8 are fixed. The piston rod 9 is located in the guide tube 10 mounted on the upper diaphragm 4 coaxially to the housing I and having an opening II in the lower part. The rod 9 is made with centering elements 12. The float 13 is freely seated on the rod 9 and is limited in vertical space by a plug 14. To the plug 14 is attached a flexible rod 15, which is connected to the short end of the lever 16 by the upper end. ha 17 and passed into the overflow pipe 18.

The float valve operates as follows.

The water reservoir tank 3 is filled with water flowing through the supply and flow pipe 2, the opening of the lower diaphragm 5, the gap between the side wall of the housing 1 and the piston 7, the opening of the upper diaphragm 4 and the opening 11 in the lower part of the guide pipe 10. The float 13 rises and pulls the rod 9, raising the piston 7. When the water level reaches the maximum allowable value, the float 13 presses the piston 7 to the upper diaphragm 4, closing the hole in it and shutting off the water supply to the tank.

The water from tank 3 is consumed in the order of return filling and through valve 6, and at the initial moment at the maximum allowable level, only through this valve.

When the levels of the minimum permissible value are reached (fire stock), the float 13 is lowered onto the opening of the lower diaphragm 5 piston 7, which is tightly pressed against the diaphragm by the pressure of the water in the tank and stops its further use. Sealing elements 8, attached to both sides of the piston 7, provide reliable closure of the holes in the diaphragms 4 and 5.

The use of fire stock occurs when the piston 7 is forced to lift.

which is accomplished by means of r 15 and 17 and a two-armed lever 16.

The implementation of the float valve in the form of a housing, which contains two horizontal diaphragms and a check valve on the side surface between them and in which the piston connected by the rod to the float is placed, allows to reliably ensure the position of the adjustable level within the specified limits and use the proposed valve in the water towers, where such adjustment is necessary.

Compared with the existing equipment of water towers, serving for the same purpose, the use of the proposed float valve will also reduce the consumption of pipes.

Claims (2)

Invention Formula L. A float valve containing a housing installed in the water tower with openings for the passage of water, inside of which a piston with a rod is placed, as well as a float attached to the upper part, characterized in that, in order to increase the efficiency by using a given mode the outflow of water, it is provided with diaphragms mounted horizontally in the housing and a check valve mounted on the side wall of the housing between the diaphragms, while the distance between the diaphragms is equal to the maximum difference and minimum water level in the tower. 2. A closure according to claim 1, characterized in that it is provided with a coaxially mounted stem and at a distance from the piston with a guide tube, with centering ring elements and openings made in its lower part, as well as sealing elements attached to the stem. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 161187, cl. E 03 B 6/08, 1961. uz.i