PVC pipe with properties of fireproofness and thermal insulation

Abstract

The invention discloses a PVC pipe with the properties of fireproofness and thermal insulation. The PVC pipe comprises a pipeline main body, a thermal insulation layer, a steel belt layer and a fireproof coating; the pipeline main body is internally provided with a through hole, through which a medium flows, and sequentially comprises the thermal insulation layer, the steel belt layer, a sound insulation layer and a fireproof layer from inside to outside; the thermal insulation layer internally comprises a first pipe sleeve made of a polystyrene material; the steel belt layer internally comprises a steel pipe sleeve made of steel; the sound insulation layer is internally provided with a second pipe sleeve made of polyester fibers; the fireproof layer is internally provided with a third pipe sleeve made of polyvinyl chloride, perchloroethylene and chlorinated rubber; and the outer wall of the pipeline main body is coated with the fireproof coating. For the PVC pipe provided by the invention, through arrangement of a multi-layer structure, the fireproofness and the thermal insulation performance of the pipeline main body are effectively improved. The PVC pipe with the properties of fireproofness and thermal insulation is reasonable in structure, has the characteristics of high practicability, good safety and the like and can be widely used.

Description

technical field [0001] The invention belongs to the technical field of PVC pipes, and in particular relates to a PVC pipe with fireproof and thermal insulation properties. Background technique [0002] PVC (Polyvinylchlorid) is the abbreviation of (Polyvinylchlorid), it is loved in the world today, quite popular and widely used as a synthetic material. Its global usage ranks second among various synthetic materials. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, while its consumption was 5.3 million tons. , in Germany, the average production and consumption of PVC is 1.4 million tons. The steel belt pipe is also called the steel belt reinforced polyethylene (HDPE) spiral corrugated pipe (MRP for short) for buried drainage, which is developed in my country in recent years. A new type of plastic buried drainage pipe, [0003] At present, due to its high hardness and effective resistance to hoop stress and axial impact stress g...

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Problems solved by technology

[0003] At present, due to its high hardness and effective resistance to hoop stress and axial impact stress generated by internal pressure, PVC pipes with fire-proof and heat-retaining properties are suitable for many fields, but their heat-preservation and fire-resistance are poor, and PVC pipes with fire-proof and heat-retaining properties are often Used as a gas pipeline, needs further improvement

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