Biogas fermentation microorganisms are metabolically active within a certain temperature range and can produce biogas at 8-65°C. In the 8-65°C range, the higher the temperature, the faster the gas production but not the linear relationship. When the biogas digester fermentation temperature is lower than 8°C, the biogas fermentation microorganism completely stops its activity. The biogas digester must be built in the greenhouse or in a warm circle to ensure that the biogas digester normally produces gas and safely overwinters. Rural household biogas has been overwintering management can take the following measures.
1. Before the winter, the biogas digester should be discharged in small quantities. At the same time, a certain amount of fresh pure manure should be added. The concentration of the fermented feed liquid should be higher than that in summer, and about 12% is appropriate. The conditions are as large as possible before the winter, and the feed volume is generally 2/3 of the total tank capacity.
2, the semi-dry manure or straw piled in the methane tank, and cover the agricultural film, to promote the feces or straw self-heat insulation, after the spring temperature rise after removing the agricultural film.
3, directly covering a few layers of agricultural film, in case of rain or snow cover the grass (cotton) in the evening, the area covered by the agricultural film is more than 2 meters above the digester.
4, in the winter can not let the cold raw material directly into the digester. Before entering the pool, the raw materials should be covered with agricultural film and dried for a few days or mixed with hot water before entering the pool.
The non-invasive/high-flow integrated ventilator (BPAP-HE) is a non-invasive ventilator, a high-flow respiratory humidifier, or a high-performance humidifier.
The non-invasive ventilator mode of this product can be used for adult patients who do not rely on invasive ventilation support, such as respiratory dysfunction, to provide ventilation assistance and respiratory support;
Products with high-flow heating and humidification mode can be used for humidification and oxygen therapy for adult patients with spontaneous breathing.
BPAP HE,Non Invasive Vent,Niv Breathing Machine,Non Invasive Ventilation Machine
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