Installation test tool for graphite seal ring of metal hard seal ball valve

Abstract

The invention discloses an installation test tool for a graphite seal ring of a metal hard seal ball valve. The installation test tool comprises a base and a press plate, and is applied to a valve body, a valve base and a seal ring base of the metal hard seal ball valve; the base is detachably connected with the lower end of the valve body and seals a lower port of the valve body; the press platepresses the upper end of the valve base and seals a pore channel of the valve base, and the outer peripheral surface of the press plate, the upper end face of the valve base and the upper end inner wall of the valve body define an airtight observation ring groove for containing liquid. The installation test tool can solve various problems in the process of installation and adjustment of the graphite seal ring, simplify the adjustment steps, test the seal performance of the seal ring and influence parameters, and greatly improve the efficiency of installation and adjustment of the metal hard seal ball valve.

Description

technical field [0001] The invention relates to the field of valves, in particular to a graphite sealing ring installation test tool for metal hard-sealed ball valves. Background technique [0002] With the improvement of chemical technology and the advancement of energy saving and emission reduction, more and more devices have continuously improved equipment requirements, and there have been working conditions where high temperature, high pressure and strong corrosion coexist, and low leakage requirements must be met under this working condition, so There is a need for a shut-off valve that can achieve reliable cut-off under this working condition. Because the ball valve works stably, has strong high temperature resistance, and can adapt to various harsh working conditions, the metal hard-sealed ball valve came into being. [0003] At present, the sealing ring of metal sealing ball valve is a recognized technical problem in the industry. Graphite material is resistant to hi...

AI Technical Summary

Problems solved by technology

[0003] At present, the sealing ring of metal sealing ball valve is a recognized technical problem in the industry. Graphite material is resistant to high temperature and high pressure, anti-oxidation, and does not react with most of the existing media, so it is one of the ideal materials for sealing ring. Graphite material is used When used as a sealing material, due to the limitation of processing technology, the graphite sealing rings of the same batch have differences in density, size, compression, etc., resulting in differences in the performance of the sealing rings for valves of the same batch, so one is needed for testing. Tools for graphite sealing ring sealing performance, compression performance, and mounting groove dimensions that are lacking in the prior art

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