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农村许多沼气用户的输气管道,由于缺乏必要的保护设施,经常发生管道积水、粪渣堵塞、压扁压断、老化脆裂、鼠蚁咬破和冻裂等现象,使输气系统造成漏气,输气量过小甚至完全丧失供气能力。为了克服上述弊病,降低管路投资、延长管道的使用寿命和使管道及燃具等配件整齐美观,应对管道(特别是软塑料管道)及燃具等配件的合理敷设和安装引起重视。一、沼气输气管道的敷设和燃具器配件的安装沼气输气管道可采用金属、硬质塑料、橡胶及软塑料管道。金属及硬塑料管道具有较高的机械强度,耐老化,使用寿命长和不被老鼠、白蚊危害等特点。因此,有条件的用户,应尽可能选用金属或硬塑料管。目前农村普遍和大量使用的均为软塑料管,本文着重介绍软塑料管道的敷设。同时,附带介绍燃具等配件的安装方法。
Many gas pipelines for biogas users in rural areas often suffer from phenomena such as water accumulation in pipelines, clogging of feces and slag, crushing, pressure cracking, brittle cracking, cracking and cracking of mice due to the lack of necessary protective facilities. Leakage, too little gas or even complete loss of gas supply capacity. In order to overcome the above drawbacks, reduce investment in pipelines, extend the service life of pipelines, and make pipes and gas appliances neatly and beautifully, and pay attention to the rational laying and installation of pipelines (especially soft plastic pipelines) and gas appliances and other accessories. I. Installation of biogas gas pipelines and installation of gas appliance fittings Biogas gas pipelines can be made of metal, hard plastic, rubber and soft plastic pipes. Metal and hard plastic pipes have high mechanical strength, anti-aging, long service life and are not harmed by mice and white mosquitoes. Therefore, qualified users should use metal or hard plastic tubes as much as possible. At present, soft and plastic pipes are commonly used and widely used in rural areas. This article focuses on the laying of soft plastic pipes. At the same time, the installation method of the fittings such as the burning appliances is attached.