Application of Portable Infrared Biogas Analyzer in Rural Biogas
Common
problems with rural biogas
1.
Newly built biogas digester, the water level of the biogas digester water
pressure will drop after feeding.
When
a newly built biogas digester is tested for water pressure through a water
pressure chamber after adding raw materials, a common problem is that the water
column drops after the water column between the water pressure rises to a
certain height. There are three cases of the water column's down lifting
process. The first is that the speed of the water column drops first and then
slows down. This may be a problem. Leakage occurs on the inner wall of the
biogas tank or on the ground. Secondly, the drop rate of the water column is
uniformly falling. This may be a problem. It is the air leakage phenomenon in
the patio cover, and after that, the water column drops below the water
pressure and the negative pressure appears, which indicates that the biogas
digester has a serious water leakage phenomenon.
2.
The gas production is normal and suddenly drops significantly.
Newly
built biogas digester At the beginning of feeding, all gas production is
normal. Biogas cookers can be ignited and used normally. After a period of
time, the gas production is significantly reduced, and even the gas production
is not enough. There are two main situations: 1. There is too much fermentation
raw material liquid in the biogas tank, which makes the effective gas tank
volume of the biogas tank smaller, and there is not enough space to accommodate
the existence of biogas; Leak points appear and gas leaks.
3.
The pressure is normal, but the cooker cannot ignite normally.
After
the biogas is fed, it enters the use stage. The gas pressure gauge on the
pipeline shows that there is a certain pressure, but the use of biogas is a
phenomenon that the stove does not catch fire. There are two possible
situations for this phenomenon: 1. Problems with biogas cookers; 2. The content
of methane in biogas is low.
4.
No pressure or low pressure
If
the pressure is low or there is no pressure, the biogas cannot be used it means
that the biogas digester cannot produce gas normally. There are three main
reasons for this:
4.1.
The pH of the fermentation environment in the biogas tank is partial acidity;
4.2.
The pH of the fermentation environment in the biogas tank is partial acidity;
4.3.
The toxic substances appear in the biogas tank to kill anaerobic fermentation.
The above three situations will cause the biogas digester to produce gas
normally.
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