目前在农村沼气建设中,无论是家用小池、还是集体用大池,其输气系统和管道的铺设,一般都没有进行科学的设计计算。因此,往往造成管径过大,浪费材料;或者管径过小,压力降大,沼气流通不畅,致使炉火微弱。为了避免产生上述问题, At present, in the construction of rural biogas, no matter whether it is a household small pool or a large pool used collectively, the laying of gas transmission systems and pipelines generally do not carry out scientific design calculations. Therefore, the pipe diameter is often too large, waste of materials; or pipe diameter is too small, pressure drop, poor circulation of biogas, resulting in weak fire. In order to avoid the above problems,