Water feeding pipeline with polystyrene heat preservation layer

Abstract

The invention discloses a water feeding pipeline with a polystyrene heat preservation layer. The water feeding pipeline is formed by a PPR (Pentatricopeptide Repeats) pipe, a polyethylene heat preservation layer and a fiberglass protection shell, wherein the polyethylene heat preservation layer is used outside the PPR pipe, and a heat preservation tile in the position of a connector is coiled and coated by using an aluminum foil tape; the fiberglass protection shell is arranged outside the polyethylene heat preservation layer; an elbow position of the PPR pipe and a pipeline connecting position are buckled by using a polyethylene heat preservation tile and then are well coiled and fixed by the aluminum foil tape; the elbow position of the PPR pipe and the pipeline connecting position are buckled by using a fiberglass protection tile and then are well coiled and fixed by the aluminum foil tape. According to the water feeding pipeline disclosed by the invention, the thickness of the polystyrene heat preservation layer is designed in a way that a severe cold region is divided into three stages according to different frost lines, different recommended embedding depths can be given for different stages, and the thickness of the heat perservation is calculated after the embedding depth is determined, therefore, the water feeding pipeline is more scientific, and the problem of pipeline frost heaving can be effectively solved.

Description

Technical field: [0001] The invention relates to a water supply pipeline with a polystyrene insulation layer. Background technique: [0002] In rural areas in cold winter areas of our country, every winter and spring are the peak periods of freezing, cracking and bursting of water supply and drainage pipes, which has brought great troubles to the production and life of farmers. The main reason for freezing and bursting of water supply pipes in villages and towns is that ① when the water supply pipes in villages and towns intermittently supply water in winter, the water temperature will drop. The foundation is subjected to various loads. When the groundwater level rises and falls, longitudinal bending stress will be generated, resulting in uneven stress on the pipeline, which will cause the pipeline to break. ③Because of the influence of temperature factors, the depth of permafrost is different in different places. Generally, if the pipeline is laid below the permafrost line...

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