Fireproofing vacuum heat-insulating ball valve

Abstract

The invention relates to a fireproofing vacuum heat-insulating ball valve which comprises a valve body, a ball body, a fireproofing table, a heat insulating medium, a jacket outer layer, anti-static steel balls, anti-static springs and the like. A seal seat adopts a metal-to-metal fireproofing convex table arrangement structure, and the fireproofing table and the valve body are integrated so as to ensure fire burning and effective sealing; the head part of a valve rod is provided with two holes, and the anti-static spring and the anti-static steel ball are installed in each hole. An anti-static device is made by connecting the anti-static steel balls with the anti-static springs, so that the production of friction static electricity on the ball body is prevented, and stable and safe conduction is achieved. The jacket outer layer is welded outside the valve body, a cavity space is formed between the jacket outer layer and a case outer surface, and an integral heat-insulating construction is made to reduce heat dissipating area. The jacket outer layer is connected with two one-way valves, and a jacket for heat insulation is filled with a perlite heat-insulating material and is vacuumized so as to avoid the heat conduction of air. The ball valve insulates heat during operation, the medium can not be solidified due to temperature reduction, the operation is convenient, and the service life is prolonged.

Description

Technical field: [0001] The invention relates to a fire-proof ball valve, in particular to a fire-proof vacuum heat-preservation ball valve. The jacket is filled with pearlescent sand heat insulating material and vacuumized to avoid air heat conduction and prolong the service life. Background technique: [0002] The traditional ball valve does not have a special heat preservation structure. When the medium passes through the inner cavity, the easily solidified medium will solidify due to the temperature drop, forming a large torque, and the sealing surface is easy to be worn, resulting in leakage and static electricity ignition, and the service life is short. Many troubles or security issues. Invention content: [0003] Aiming at the deficiencies of existing fireproof ball valves, the present invention provides a fireproof vacuum heat preservation ball valve, which is composed of a valve body, a sphere, a fireproof platform, an insulating medium, an outer layer of a jacket...

AI Technical Summary

Problems solved by technology

[0002] The traditional ball valve does not have a special heat preservation structure. When the medium passes through the inner cavity, the easily solidified medium will solidify due to the temperature drop, forming a large torque, and the sealing surface is easy to be worn, resulting in leakage and static electricity ignition, and the service life is short. many troubles or safety issues

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