Combined wound gasket

Abstract

The invention discloses a combined wound gasket which solves the problems that an existing metal wound gasket is prone to damage and prone to falling apart. The combined wound gasket comprises a pressure bearing ring. An initial pressure inner ring is arranged on the inner side of the pressure bearing ring, and an initial pressure outer ring is arranged on the outer side of the pressure bearing ring. The initial pressure inner ring and the initial pressure outer ring are each of a V-shaped structure. V-shaped openings are formed oppositely. The upper end of the pressure bearing ring, the V-shaped upper edge of the inner ring and the V-shaped upper edge of the outer ring form an upper cavity. The lower end of the pressure bearing ring, the V-shaped lower edge of the inner ring and the V-shaped lower edge of the outer ring form a lower cavity. Non-metal filler is arranged both in the upper cavity and the lower cavity. According to the combined wound gasket, due to cooperation of the initial pressure inner ring and the initial pressure outer ring with the oppositely-formed V-shaped openings and the pressure bearing ring, the combined wound gasket has the beneficial effects of being reasonable in structure and ingenious in conception; and the non-metal filler is arranged both in the upper cavity and the lower cavity, and therefore the whole combined wound gasket has good torsion resistance, bending resistance, shearing resistance and other mechanical properties and is high in anti-deformation capacity and free of the phenomena that the combined wound gasket falls apart and is squashed.

Description

technical field [0001] The invention relates to the field of gaskets, in particular to a composite winding gasket which is not easily damaged and falls apart. Background technique [0002] Metal wound gasket is a combined flat gasket formed by alternately winding formed steel strips with a certain geometrical section (such as V-shaped or W-shaped) and non-metallic strips. The inner and outer sides of the metal wound gasket are composed of several turns of steel strips. The beginning of the inner steel strip and the end of the outer steel strip are welded to form a whole of the wound gasket. Since the formed steel strips and non-metallic strips are alternately wound in the metal wound gasket, it can only be connected by butt welding. [0003] The metal wound gasket makes full use of the heat resistance and compression resilience of the formed steel strip. At the same time, through the combination of the formed steel strip and the non-metallic strip, the metal wound gasket ha...

AI Technical Summary

Problems solved by technology

Due to the characteristics of the metal wound gasket's own technology, there are still many inevitable defects. The metal wound gasket is a composite superimposed structure, and its mechanical properties such as torsion resistance, bending resistance and shear resistance have obvious dissociation, and the difference Larger, it is easy to damage in the weak direction (such as the thickness direction and the vertical axis), especially the large diameter (in some cases, the diameter of the metal wound gasket can reach more than 2 to 3 meters). The damage rate is higher; during the manufacturing process, sudden disintegration often occurs; during transportation and installation, if shock or vibration is too large, damage and disintegration may also occur, which not only affects the progress of equipment maintenance, but may also cause catastrophic accidents

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