RU1768723C - Column hydrant - Google Patents

Abstract

Usage: the invention relates to water distribution valves mounted on a network, and relates to the construction of a hydrant column. The inventive hydrant column includes a water inlet pipe 1 with a flange 2, a housing 3 with a water outlet 4, cuffs 7 and 8. The housing 3 and the pipe 1 are connected by a hook 9, while the first is equipped with a plug 10, and the second with a saddle 11 in the form a disk with holes with a droplet-shaped elastic element 13. In the case 3, a tubular element 14 is installed, located in the cuffs 7 and 8, provided with holes 15 and a chamfer at the lower end and kinematically connected by means of the L-shaped hydraulic brackets 22, which is made in the form of a tube 16 and a cylinder 20. When this m tube 16 is equipped with three-way stopcock 18, and its upper portion 19 is formed larger than the lower diameter. The cylinder 20 is threaded, a key head 23 and screwed into a nut 24, rigidly fixed with brackets 25 to the housing 3. The lower end of the tube 16 is plugged, provided with holes 15, and the upper one is cut at an acute angle to the bottom of the cylinder 10. The surface of the sealing element interacting with the tube 16 is corrugated, provided with protrusions 27 and a cuff 28. 5 cpp-crystals, 1 silt. next to

Description

FIELD OF THE INVENTION The invention relates to water distribution valves mounted on a network, and relates to the construction of a hydrant column.

The purpose of the invention is to improve hydraulic parameters and increase reliability.

The device is illustrated in the drawing, which shows a section of a hydrant column in the closed position.

The hydrant column consists of a water inlet pipe 1 attached to the mounting flange 2. A body 3 with a lateral water outlet 4 is installed on the water inlet pipe. At the lower end of the body 1 and the upper end of the water inlet pipe

cuff holders 5 and 6 are made with cuffs 7 and 8, which are interconnected by a hook 9, which provides freedom of rotation of the housing 3.

The housing 3 is equipped with a plug 10 at the upper end, and the water inlet 1 is saddled 11 in the form of a disk fixed with ribs 12. The saddle 11 is provided with a sealing drop-shaped to ensure smooth closing and opening, as well as to reduce head losses and increase reliability. elastic element 13.

In order to more securely fasten the sealing element 13 in the seat 11, holes are made through which are connected

VI about

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XI th

upper and lower parts of the droplet-like sealing element.

The locking part of the hydrant column is made in the form of a tubular element 14 placed in cuffs 7 and 8 and resting in the closed position with the lower end resting on the droplet-shaped sealing element 13 of the seat 11. The lower end of the tubular element 14 is provided with an external chamfer.

To discharge water when the water supply to the network is interrupted, the tubular element 14 is provided with holes 15, the lower of which are located at the level of the upper edge of the cuff 8 located on the upper end of the water inlet pipe 1.

The tubular element 14 is completely placed under the cap 10 of the housing 3 and is kinematically connected with a hydraulic actuator, which is equipped with control means and is made in the form of a tube 16, which can be vertically moved through a gland 17 fixed in the center of the cap 10 of the housing 3 through a central hole made in saddle 11 and sealing element 13.

The hydraulic actuator control is in the form of a traveling valve 18, by means of which the tube 16 is divided into two parts. The upper part 19 of the tube 16 is placed in the cylinder 20, which is turned upside down and provided with a self-locking cuff 21 at the lower end.

To improve hydraulic parameters, the tubular element 14 is attached to the tube 14 by means of L-shaped brackets 22 located inside the housing 3.

The cylinder 20 is provided with a head 23 for the key, threaded and screwed into the nut 24, which is rigidly fixed with brackets 25 on the cover 10 of the housing 3.

To prevent clogging, the lower end of the tube 16 is plugged and provided with filter holes 26, i.e. made in the form of a filter.

For more reliable operation, the upper end of the upper part 19 of the tube 16 is cut at an acute angle to the bottom of the cylinder 20. The channel surface of the sealing element 13 interacting with the tube 16 is corrugated and provided with self-sealing protrusions 27, and a cuff 28 is made at the lower end of this channel in the form recesses and protrusions on the sealing element 13.

For greater reliability in operation, in particular for a denser closure, the upper part 19 of the tube 16 is made larger in diameter than the lower part.

The hydrant column works as follows.

In the closed position of the hydrant column, the tubular element 14 with its sharp edge of the lower end fits snugly against the elastic sealing element 13 mounted on the disk of the seat 11. In this case, the cavity of the cylinder 20 and the upper part 19 of the tube 16 is communicated through a three-way valve

0 18 with the lower part of the tube 16, and through the last with the cavity of the water intake pipe 1. Water flows freely into the cylinder 20, water leakage through the gap between the pipe 16 and the elastic sealing element 5 of the seat 11 is prevented by the presence of self-sealing protrusions 27 and the sleeve 28. B In this position, the tubular element 14 is pressed against the elastic shell 13 under the influence of its weight, as well as by force

0 pressure on the bottom of the upper wider part 19 of the tube 16 formed by the valve 18. The seal is increased because the upper IP part 19 of the tube 16 has a larger diameter than the lower part, due to

5, which creates a difference in the pressure force on the valve 18 from above and from below. Prevention of the entry of water into the tubular element 14 is ensured by the presence of chamfers at its lower end, the elasticity of the sealing element 13, and also by the droplet shape of the latter.

The pressure cuff 8 at the end of the inlet pipe 1 is pressed against the surfaces of the cuff holder 6 and the tubular

5 of the locking element 16, which prevents the ingress of water into the housing 3,

To open the hydrant column, it is enough to turn the tap on the crane to stop the flow of water into the cylinder 20 and the upper

0 part 9 i cutting 16, the latter communicating with the atmosphere. Water flows out of the cylinder 20 in the upper part 19 of the tube 1, at the same time the pressure of the water presses on the tap 18 from below, since the pipe 16 is in communication with the water intake path 5 of the pipe 1, which is under pressure. As a result, the tube 16 rises together with the tubular closure 14. Moreover, thanks to the droplet-shaped form of the sealing element 13, the water flow

0 increases smoothly.

Water enters the tubular element 14, and out of it through the end hole and holes 15 exit the housing 3 almost unhindered, since the L-shaped brackets 22

5 prevent the tubular element 14 from being pressed against the plug 10. From the housing 3, water enters the water outlet 4, which can be turned in any direction, since the housing 3 is fixed to the water inlet 1 by means of a hook 9 with freedom of rotation.

Water leakage from the housing 3 is prevented by the cuff 7 and the gland 17.

The pressure loss due to hydraulic friction is reduced due to the droplet shape of the sealing element 13 of the seat 11 and the presence of side holes 15 in the tubular element 14.

Moving the tube 16 up and down is facilitated by the fact that it contacts the sealing element 13 not with the entire surface, but only with the smooth protrusions of the corrugated surface of the hole.

The sealing element 13 is held firmly on the seat disc 11 because the latter is provided with holes through which the lower part of the sealing element 13 is connected to the upper.

To close, it is enough to turn the valve 18 in the opposite position, i.e. connect the cavity of the cylinder 14 with the cavity of the water intake pipe. At the same time, the water, being cleaned, passes through the openings 26 into the tube 16, the valve 17, the upper part of the tube 18 from above with more force than from below. In addition, under the action of gravity, the tubular locking element 14 gradually slides down and is pressed tightly against the elastic sealing element 13.

In order to reduce the water supply from the hydrant-outlet when it is open, it is enough to screw the cylinder 20 into the nut 24, fixed with brackets 25 on the cap 10 of the housing 3. At the same time, reduce the degree of lift of the tube 16 and the tubular locking element 14 attached to it , i.e. the passage section between the last and the elastic sealing element 13 of the seat 11 will decrease. To increase the flow rate, it is necessary to raise the cylinder 20 upwards by unscrewing it from the nut 24 using a wrench installed on the head 23.

When water is discharged from the network, the hydrant column is almost completely released from it, since water flows through the tube 16, as well as through the holes 15, since the latter are located at the level of the upper edge of the cuff 8.

A small amount of water remains between the tubular element 14 and the elastic shell 13, the ice formed from it cannot damage the tubular element 14, as it expands upwards or compresses the elastic shell upwards.

The hydrant column is easy to manufacture and operate, reliable, and reduces pressure losses.

Claims (6)

1. A hydrant column, comprising a housing with a discharge pipe and a cuff at the lower end, a water intake pipe connected to it with a cuff at the upper end, a tubular element mounted for vertical movement in the cuffs, a fixed saddle of the tubular element with a sealing element , a hydraulic actuator made in the form of a cylinder and a tube on which a tubular element is fixed and the cavity of which is communicated in the upper part with the cylinder cavity, and in the lower part with cavity of the water inlet pipe, hydraulic actuator control and stuffing box packing for the tube, located on the housing, characterized in that, in order to improve hydraulic parameters and increase reliability, the tubular element is made in the upper part with openings on the side surface, a sealing element - in the form of a drop fixed by the lower part by ribs to the water inlet pipe, and the hydraulic actuator control means in the form of a three-way valve installed outside the housing as a tube passing through the sealing element, the diameter of which is after the crane is larger than the diameter of the crane. 2.Hydrant column pop. 1, with the exception that the cylinder is installed by means of a thread in a nut secured by brackets to the housing and has a seal for the tube. 3. The hydrant column according to claim 1, with the fact that the sealing element of the valve seat is made in the lower part with a perforated disk and has corrugations and protrusions on the surface interacting with the tube, and on the lower end is a self-sealing cuff. 4. The hydrant column according to claim 1, with the fact that the upper end of the tube made at an acute angle to the bottom of the cylinder, and the bottom is plugged, with holes for the passage of water made on the side surface of the tube above the plugged end. 5. The hydrant column according to claim 1, with the fact that the lower end of the tubular the element is made with an external chamfer, and the lower holes are located at the level of the upper edge of the cuff of the intake pipe. 6. Hydrant column pop. 1, with the proviso that the tubular element is connected to the hydraulic actuator tube by means of L-shaped brackets located in the housing. 24 25.  26