Metal wound gasket component, metal wound gasket, inner ring and centering ring

Abstract

The invention discloses a metal wound gasket component, a metal wound gasket, an inner ring and a centering ring, aiming at solving the problem that the existing metal wound gasket component is entirely discard as soon as used. The gasket component comprises the metal wound gasket as well as the inner ring and / or the centering ring which are / is in fit sleeve-connection with the metal wound gasket. After being installed correspondingly with the inner ring and / or the centering ring, the metal wound gasket fixedly connects an upper boss with a lower boss in a screw threaded connection way or a riveting way. The metal wound gasket component, the metal wound gasket, the inner ring and the centering ring are simple in structure, flexible to install and high in reliability; the corresponding damaged components can be replaced after use, while non-damaged components are not replaced and therefore the production cost and the use cost are effectively reduced.

Description

Technical field [0001] The invention relates to a gasket, in particular to a metal wound gasket component, a metal wound gasket, an inner ring and a centering ring. Background technique [0002] Metal spiral wound gaskets have been widely used in many fields such as petrochemical industry, and the use effect is very good. Metal spiral wound gaskets are formed by overlapping a "V"-shaped or "W"-shaped metal belt and a non-metallic belt, and are continuously wound. The metal belt is fixed by spot welding at the beginning and end. [0003] Metal wound gasket components are divided into four types. In addition to the basic type, there are commonly used types with inner ring, with centering ring, with inner ring and centering ring. The inner ring type refers to the inner ring embedded in the inner ring of the metal wound gasket; the centering ring type refers to the centering ring sleeved on the outer ring of the metal wound gasket; the inner ring and the centering ring type It means ...

AI Technical Summary

Problems solved by technology

[0004] The non-reusable feature of the metal wound gasket assembly brings the following problems: For the three types of metal wound gasket assemblies: the type with inner ring, the type with centering ring, and the type with inner ring and centering ring, once the metal winding If the belt fails, not only the metal wound gasket fails, but also the inner ring and / or centering ring used with it are also discarded

Due to the particularity of the process medium of petrochemical and other equipment, the material of the inner ring and (or) centering ring of the metal wound gasket assembly is relatively expensive, such as 0Cr18Ni9 (304), 00Cr19Ni10 (304L), 0Cr17Ni12Mo2 (316), 00Cr17Ni14Mo2 (316L ), 0Cr18Ni10Ti (321), 0Cr18Ni11Nb (347), etc. During the use of the metal wound gasket assembly, the easily damaged part is generally the metal winding tape part, and the inner ring and (or) of the metal wound gasket assembly Centering rings are generally not easily damaged, so such crude use of metal wound gasket assemblies is a colossal waste of resources

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