SU934147A1 - Pipeline joint-type connection - Google Patents

Description

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The invention relates to mechanical engineering, in particular to the hinged connection of pipelines, and can be used in the chemical and petroleum industries.

Known hinge joining of pipes, including the case in which the ends of the connected pipelines are placed, interacting along Spherical surfaces, and the end of one of the pipelines is made in the form of a piston placed in the case, with the possibility of Longitudinal displacement l.

The disadvantage of such a connection is that the longitudinal movement of the pipeline piston in the housing does not register and the movement of one pipeline requires movement of the other, which leads to paarepMeTWaa (joint interface.

The closest in technical essence is a hinged connection of pipelines containing

. housing With an installed spherical cheskin tip of one of the pipelines, sealing rings and a fixing element 2.

A disadvantage of the known pipe joining is the limited possibility of moving only one pipe in the axial direction. In addition, the connection does not allow the fixation of relocatable

to in the axial direction of the pipelines in several positions, and the installation of the locking elements in the joint zone leads to the depressurization of the connection.

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The purpose of the invention is to improve the tightness and enhance the ability to control the connection.

Claims (2)

This goal is achieved by the fact that in a hinged connection of pipelines, comprising a housing with a spherical tip installed in it, one of the pipelines, sealing rings and a fixing element, a spout and a spring-loaded sleeve are installed on the spherical tip of the pipeline and interacting with the sub-PNCOM on the sphere, installed in the inner bore of the case, we take on the pipeline with a spherical tip made longitudinal grooves and radial depressions s in contact with the teeth of the locking element. FIG. 1 shows a swivel joint, longitudinal section; FIG. 2 - pipeline with a spherical tip. Swivel piping contains pipeline 1 with a composite body 2, in which pipeline 3 is installed with a spherical tip k. On the spherical tip k, a sleeve 7 covering the subframe 5 and a spring-loaded spring 6, a sleeve 7 with a hemisphere 8 at the end, are installed. In the composite case 2 a fixing element is installed, made in the form of an elastic sleeve 9 with teeth 10 for fixing from the longitudinal movement of the pipeline 3. The elastic sleeve 9 is made integral or split to allow assembly of the connection. The pipeline 3 is provided with diametrically arranged longitudinal grooves 11 with radial depressions 12 and an annular groove 13 interacting with the teeth 10 of the elastic sleeve 9.. The connection works as follows. In the first part of the composite body 2 of the conduit 1, an elastic sleeve 9 and a spring 6 are installed, after which it is inserted into the conduit 1. sleeve 7. A pipeline 3 with a bushing 5 mounted on its spherical head 4 and a second part of the composite body 2 is inserted into the elastic sleeve 9 before the spherical head comes in contact (with the hemisphere 8 of the sleeve 7) After that, the composite body 2 is welded at the interface, Assembled in this way, the pipeline 3 moves axially due to the deformation of the spring 6 and the sleeve 7 moving down or up along the inner walls of the pipeline 1. In this case, the spring 6 constantly presses the hemisphere 3 of the sleeve 7 to the spherical detour k of the pipeline 3, ensuring a high sealing of the joint, and prevents liquid from entering the cavities of housing 2. In addition, the hemisphere 8 is constantly pressed by the spring 6 to the follower 5 and ensures the sealing of the joint in the upper part of the sphere. Elastic sleeve 9. Screw teeth 10 along the longitudinal groove 11, provides the possibility of axial movement of the pipeline 3, while the tooth 10, being placed in the radial depressions 12, fixes the pipeline 3 in the desired Position. In addition, the pipeline 3 has the ability to rotate around its axis when the teeth 10 hit the annular groove 13 and the angular displacement due to the deformation of the teeth 10. The technical and economic effect of the articulated joint is the possibility of axial and angular displacement of the pipelines relative to each other, turning one of the pipelines around its axis with high sealing joints. The articulated connection of pipelines, comprising a housing with a spherical tip installed therein of one of the pipe drivers, sealing rings and a fixing element, characterized in that, in order to increase the tightness and increase the possibility of adjustment, connection, a spout covering it is installed on the spherical tip of the pipeline the spring-loaded sleeve, and the locking element is provided with teeth, interacts with the bushing on the sphere and is installed in the internal bore of the housing, and uboprovode with a spherical head part there are longitudinal radial grooves and depressions in contact with the teeth of the locking element, I. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 621938, cl. F 16 L 27/02, 1976. 2. USSR author's certificate K 573668, cl. F 16 L 27/06, 1972 (prototype). 1 Vv / J 7/12 2