Flange protective cover

Abstract

The invention discloses a flange protective cover which comprises an internally hollow sealing-type cover body, wherein two round holes used for pipeline passing are disposed in the cover body, the cover body is divided into two coordinated half disks along the center axis of the round holes, the two coordinated half disks are movably connected to realize mutual separation of the two half disks, and the cover body is a hard shell body. By the two half disks used through coordination, the flange cover body disposes a flange, a partial pipeline connected on the flange and a flange bolt sleeve inside the cover body, and realizes sealing by a soft sealing bars; and the cover body is the hard shell body. In comparison with existing flange protective covers, the flange protective cover provided by the invention can separate flange components from external air very well, and is characterized by good sealing effect, a simple structure and convenient disassembly and assembly.

Description

technical field [0001] The invention relates to a flange protection tool, in particular to a flange protection cover, which belongs to the technical field of industrial production equipment. Background technique [0002] In industrial production and daily life, there will be a large number of pipeline connections. When the fluid in the pipeline is greater than 4Mpa or the diameter of the pipeline is large, flange connection is required. The adjacent two flanges are fixed with bolts, and the flange is installed Gaskets are often used during the connection to prevent fluid penetration. The use of flanges makes it possible to transmit high-temperature, high-pressure fluids over long distances. However, when the flange is in use, it is usually exposed to the air, exposed to wind, sun and rain, so it will inevitably get rusty, and the bolts used to connect the flange will also get rusty. Corrosion damage of flanges and bolts will not only damage the pipeline equipment, but also...

AI Technical Summary

Problems solved by technology

[0003] And the existing flange protective cover is mainly divided into two kinds, one is made of stainless steel, this kind of protective cover has good anticorrosion and anti-rust performance, but it is expensive and not easy to disassemble; the other is made of soft stainless steel. Made of durable materials, such as the Chinese utility model patent whose authorized announcement number is CN204021515U discloses a pipe flange protective cover, including a cover body (1), and the cover body (1) includes a side wall (4) and a bottom surface (2 ), the inside of the bottom surface (2) is used to cover the pipe opening, the side wall (4) includes a lower end (48) and an upper end (49), the lower end (48) is connected with the bottom surface (2), and the lower end ( 48) and the bottom surface (2) are both made of polypropylene non-woven fabric or composite leather, and the upper end (49) is made of soft material and surrounds to form an open end (3); the side wall (4) is provided with There is an adjustment piece (42) for adjusting the diameter of the open end (3)

The flange protective cover of this structure is cheap and easy to use, but its anti-corrosion, waterproof and other safety protection effects are poor, and the airtightness of the protective cover is poor

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