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根据多年实践,沼气输配系统的故障主要是“漏、堵、水阻”。漏是指管路漏气;堵是指管道被折、压、异物等堵塞;水阻是指管道中有冷凝水,阻碍沼气的正常输送。 (1)管路漏气可用二种方法来判断。一是将管路一头堵住,在另一头向系统吹气后迅速堵住。观察压力表,水柱下降说明漏气,不降则不漏。另一种方法是整个输配系统开关全关闭后,压力表水柱时有小幅波动,也可断定系统有漏气。
According to years of practice, the main fault of biogas transmission and distribution system is “leakage, blocking, water resistance.” Leak refers to the pipeline leaks; block refers to the pipeline is folded, pressure, foreign body and other obstructions; water resistance refers to the pipe in the condensate, impeding the normal transport of methane. (1) Pipeline leakage can be used to determine the two methods. First, plug the pipeline one way and quickly block the system after blowing on the other. Watch the pressure gauge, water column shows the leak down, not down without leakage. Another method is the entire distribution system switch is fully closed, the pressure gauge water column fluctuates slightly, but also concluded that the system has a leak.