SU705187A1 - Protection device - Google Patents

Description

one

This invention relates to a valve industry.

A protective device for piping is known. waters and tanks with explosive gases, equipped with a disk, reflecting the flame front during gas backfires. one .

Also known is a safety device with a loopback pipe, comprising a housing with covers, in which a check valve 12 is installed,

However, the known device has significant dimensions.

The purpose of the invention is to reduce the size of the protective device.

For this loopback: the pipeline is formed by through axial channels and grooves made in the housing, located on the end surfaces of the housing and connecting the 1-DIMENSIONAL channels into a continuous circuit, with sealing membranes placed between the housing and the covers.

FIG. 1 shows the device described, section A-A in FIG. 2; in fig. 2 shows a section BB in FIG. one; in fig. 3 is a B-B sweep in FIG. 2

In case 1, with top 2 and bottom 3 covers, sealed with rubber membranes 4 to 5 with pusher 6, a loop pipe is formed, formed by axial through channels 7, circumferentially connected and interconnected in a continuous chain by grooves 8, made at the ends of the case. .

A loop pipe is connected to the manifold 9 and the explosion chamber 10. A rubberized check valve 11 is placed in the manifold.

During normal operation of the device, the gas enters the manifold 9 through the inlet fitting, depressing the check valve 11, goes into the loop pipe formed by the channels 7 and the grooves 8, successively passing them one after the other, enters the chamber 10 and goes further; on consumption.

When a gas explodes in the main pipeline or vessel, the shock bath first enters the explosion chamber 10, pressing the membrane down. In this case, the membrane pusher 6 hits the valve 11, blocking it in the saddle. Next, the blast wave enters the loop