Fire-resistant and flame-retardant PVC pipe

Abstract

The invention discloses a fire-resistant and flame-retardant PVC pipe. The fire-resistant and flame-retardant PVC pipe comprises a PVC pipe body, a connector a and a connector b, the surface of the PVC pipe body is coated with a fireproof coating, a metal net is fixed to the inner wall of the PVC pipe body, a flame-retardant layer is arranged in the PVC pipe body and located on the side, away fromthe inner wall of the PVC pipe body, of the metal net, and a heat preservation layer is arranged in the PVC pipe body; and the heat preservation layer is located on the side, away from the metal net,of the flame-retardant layer, the connector a is fixedly installed at one end of the PVC pipe body, and the connector b is fixedly installed at the other end of the PVC pipe body. According to the fire-resistant and flame-retardant PVC pipe, the metal net is installed, the toughness of the PVC pipe can be improved through the metal net, the pressure resistance of the PVC pipe is improved, meanwhile, metal pipeline detection equipment can effectively detect the position of the PVC pipe through the metal net, a worker can maintain the pipe conveniently, and the working efficiency of the workeris improved.

Description

technical field [0001] The invention relates to the technical field of PVC pipes, in particular to a fire-resistant and flame-retardant PVC pipe. Background technique [0002] PVC pipe (UPVC pipe), that is, rigid polyvinyl chloride pipe, is made of polyvinyl chloride resin, stabilizer, lubricant, etc., and is extruded by hot pressing. It is the earliest plastic material to be developed and applied. UPVC pipe has strong corrosion resistance, easy bonding, low price, and hard texture. However, due to the leakage of UPVC monomer and additives, it is only suitable for water supply systems with a delivery temperature not exceeding 45°C. [0003] The disadvantages of PVC pipes in the prior art are: [0004] 1. In the prior art, PVC pipes reduce product cost by reducing wall thickness and adding a large amount of calcium carbonate, resulting in poor product quality, resulting in poor fire resistance and flame retardancy of PVC pipes, which will easily cause accidents; [0005] 2....

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Problems solved by technology

[0004] 1. In the prior art, PVC pipes reduce product cost by reducing wall thickness and adding a large amount of calcium carbonate, resulting in poor product quality, resulting in poor fire resistance and flame retardancy of PVC pipes, which will easily cause accidents;

[0005] 2. In the prior art, the PVC pipe is a new type of non-metallic pipe. With the existing metal pipe detection equipment, its specific position cannot be detected. When the pipe is buried, a wire needs to be buried on the pipe to detect the position of the PVC pipe. , not convenient for staff to use

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