EVALUATION OF METHODS OF DURABILITY OF THE OPERATION OF THE WELDED TIE-IN UNIT
Industrial safety is of a key nature today due to the increase in injury statistics at enterprises and in industry. One of the main elements of technological systems of chemical enterprises and related industries are pressure vessels and apparatuses. The relevance of industrial safety in this regard is related to the safe operation of vessels, ensuring the effective functioning and development of modern industrial enterprises. The importance of such tasks is determined by economic reasons, in particular, the high cost of equipment, the need to use obsolete equipment that has already worked out its life cycle, as well as greatly increased competition in a market economy that requires a reduction in production costs.This paper presents an assessment of the durability of the operation of choke assemblies with practical tests of samples on a laboratory installation. Practical tests were also carried out on the installation for flat samples of type IV for cyclic bending of two types of samples:- with imitation of one overhead ring (existing reinforcement method);- with imitation of two overhead rings (the proposed method of strengthening).As a result of the work, it was found that the operability of the node with the imitation of two overhead rings was 2.3 times higher. The conclusion is substantiated that a design with an imitation of two overhead rings has significant advantages over a design with an imitation of one overhead ring.