SU1218233A1 - Arrangement of sealed detachable joining of tubes with smooth cylindrical ends - Google Patents

Description

The invention relates to connections of pipelines operating under any pressure and in vacuum, and can be used in any branch of the national economy for the transport of substances in a gaseous, liquid and free-flowing state.

The purpose of the invention is to increase the reliability of the connection.

FIG. 1 shows a schematic connection assembly; Fig. 2 shows a device for connecting a higher reliability, an option; in fig. 3 shows section A-A in FIG. 2

The device contains a coupling 1 with a protrusion in the middle part, covering the pipe 2 and 3, between the ends {which are located centering. seal 4, having a T-shaped cross-section, nuts 5, located between the pipes and the coupling. Conical support-spacer rings 6, sealing elements in the form of cuffs 7, support rings 8, and anti-friction washers 9 are arranged sequentially axially in the direction of the nuts. The device shown in FIG. -2 is additionally equipped with springs 10 and counter-couplings 11 clamping rings 12, additional support rings 13 and anti-friction washers 14 are successively located connected to nuts 5 and futorki 10 between which from nut to futorka.

The device works as follows.

Nuts 5, anti-friction washers 9, oior rings 8, sealing elements are successively put on the joined ends of pipes 2 and 3.

in the form of cuffs 7, conical support-spacer rings 6. At the abutting ends of the pipes, a sleeve 1 is put on, in the center of which a centering seal 4 is installed, having a cross section

T-shaped, which is clamped and fixed through conical support-spacer rings 6 sealing elements in the form of cuffs 7, support rings 8, anti-friction i

washers 9, nuts 5 screwed into the sleeve 1. This creates such pressure on the cuffs 7 that they are deformed and fill the entire volume bounded by the support-spacer rings 6 and the support rings 8, the outer surfaces of the tubes 2 and 3 one.

The device shown in FIG. 2 is assembled as follows.

At the junction of the ends of the pipes 2 and 3, the stubs 10, the additional antifriction washers 14, the support rings 13, the clamping rings 12 of the counter-clutches 11 are successively put on.

and further analogous to the device,

shown in FIG. 1. Upon completion of the assembly of the device (Fig. 1), nuts 5 tighten the counter-couplings 11 until they stop at the ends of the coupling 1, and the clamps 10 are screwed into counter-coupling 11 all the way, pressing the clamping rings 12, support rings 13 and friction washers 14j provides increased reliability of the device.

ten

Aa

FIG. 2

Fig.Z

Claims (2)

1. DEVICE FOR SEALING CONNECTIVE PIPES WITH SMOOTH CYLINDRICAL ENDS, containing a sleeve covering the pipes, nuts located between the pipes and the sleeve from the ends of the latter, and pressing sealing elements, wherein the sleeve in the middle part on the inner surface has a protrusion, characterized in that , in order to increase reliability, a centering seal is located between the ends of the pipes, having a T-shape in cross section, and between the seal and the nuts, axially sequentially in the direction of the nuts enes conical support-spacer rings, the sealing elements in the form of sleeves, supporting rings, antifriction washers, wherein the supporting-conical spacer rings are in contact respectively with the outer surface of the T-shaped seal and the coupling protrusion. 2. The device according to claim 1, characterized in that it is equipped with futurkam and counter-couplings connected to nuts and futurkamy, between which clamping rings, additional support rings and anti-friction washers pressed in by the futurki are sequentially placed from the nut to the futurk. Fi. 1 Z