一、前言随着农业“二高一优”工程的不断深入，农村人民的生活水平不断提高，沼气也日益受到人们的普遍重视，有关沼气的新技术及其配套产品也在不断地涌现与更新，而沼气池中大量使用的沼气管却依旧几十年不变，仍沿用旧式的橡胶管和聚氯乙烯塑料软管，这两种管都有易老化， I. Introduction With the continuous deepening of the “two high and one excellent” projects in agriculture and the continuous improvement of living standards in rural areas, biogas is also increasingly valued by people. New biogas technologies and their complementary products are also constantly emerging and updated , While the biogas tubes used in large numbers in digesters are still the same for several decades and still use old-style rubber tubes and polyvinyl chloride plastic hoses, both of which have easy aging,