SU1057741A1 - Water hammer damping device - Google Patents

Abstract

A device for damping a hydraulic shock, comprising a housing mounted on the pipeline to be protected, a drain pipe and rotatable plates, characterized in that, in order to simplify the design, increase the compactness and operational reliability, the housing is mounted on the protected pipeline telescopically with axial displacement, and the rotary plates placed inside the housing along the gauge and provided with stops.

Description

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The invention relates to devices for protecting pressure pipelines and equipment against water hammering and can be used in land improvement, water supply, etc.

A hydraulic shock absorber is known, consisting of a supply pipe, a shut-off valve, a control device and a drain line, in which a set of local resistances 1J is installed.

The disadvantages of this device are cumbersome, low reliability and complexity in manufacturing, due to the location of the device outside the protected pipeline and the need to accommodate a movable valve and a set of resistances in closed cylinders.

The closest to the proposed technical essence and the achieved result is a device for extinguishing a hydraulic shock, containing a protected pipeline, a housing with a seat rigidly mounted on the protected pipeline, a lid with an opening blocked by a rotating plate and passing into a drain pipeline, an auxiliary valve mounted on output of the piping pipe and connected by means of levers and tie bars to the turntable 2.

The disadvantages of the known device are the difficulty in manufacturing and low operational reliability, due to the presence of a large number of moving parts and valves, as well as the presence of rod that penetrates the wall of the discharge pipe.

The purpose of the invention is to simplify the design, increase the compactness and operational reliability.

This goal is achieved by the fact that in the device for hydraulic impact damping, comprising a housing mounted on the protected pipeline, a drainage pipeline and rotary plates, the housing is mounted telescopically on the protected pipeline with the possibility of axial movement, and the rotary plates are located inside the housing around the perimeter and provided with stops.

FIG. 1 shows a device, a longitudinal section; in fig. 2 shows the pivot plate design in the working position; in fig. 3 - device installation diagram.

The device comprises a housing 1, inside of which around the perimeter there are swivel plates 2 fitted with hinges 3 and stops 4. At the ends of the housing 1 there are sockets 5. The housing is telescopically mounted on the protected pipeline 6 with the possibility of axial movement. In working

 The position of the wall 7 of the housing 1 is supported on the roller 8. The device is placed in an airtight chamber 9, in the bottom of which there is a drain pipe 10.

Arrow 11 shows the direction of fluid movement during normal operation of the pipeline, the arrow 12 shows the direction of fluid movement during a hydraulic shock.

The device works as follows

When fluid moves in the direction

shown by the arrow 11, the swivel plates 2 due to the hinges 3 are pressed against the wall 7 of the housing 1 and do not impede the movement of the liquid. The beads 5 of case 1 are hermetically sealed, for example, with a sealant in order to avoid leaks. In the event of

of a hydraulic shock, the flow of fluid moving in the direction shown by arrow 12 pushes the pivot plates 2 away from the wall 7. Thanks to the stops 4, the pivot plate 2 is fixed h: it blocks the flow movement, a reasonable cross section of the pipeline

0 and dramatically increasing local hydraulic resistance. As a result, part of the pressure of the hydraulic shock is transferred to the plates 2, which transfer the received impact to the housing 1, and the latter is displaced relative to the pipeline 6, opening the liquid outlet to the chamber 9. The liquid that has poured out into the gap formed between the pipeline 6 and the housing 1 is removed through the discharge pipeline 10. After removing the water, the housing 1 is returned to its original position with a jack (jack) and the sockets 5 are sealed with a waterproofing material. To facilitate sliding of the housing 1, roller 8 is installed under it.

 Technical and economic efficiency 5 of the proposed device consists in simplifying the design, improving compactness and operating reliability.

Claims (1)

DEVICE FOR EXTINGUISHING A HYDRAULIC SHOCK, comprising a housing mounted on a protected pipeline, a drain pipe and rotary plates, characterized in that, in order to simplify the design, increase compactness and operational reliability, the housing is mounted on the protected pipeline telescopically with axial movement, and the rotary plates placed inside the housing by the meter and equipped with stops.