The distribution and change of temperature field will directly affect the gas production rate and gas production rate of the whole system. Biogas fermentation is greatly affected by temperature. In summer and autumn, the temperature of natural gas production, especially in winter, is low. The temperature of biogas fermentation raw materials is usually lower than 10 ℃. Biogas production is seriously affected. In order to meet the demand of natural gas supply throughout the year, it is necessary to strengthen the heat preservation work in winter and spring. The main measures are as follows:
(1)添加溫糞
(1) Add warm feces
加入人糞肥、馬糞或堆肥后的新鮮干草等發熱量原料，適當提高池液濃度至10 ~ 12%;
Add the raw materials of calorific value such as human manure, horse manure or fresh hay after composting, and properly increase the concentration of the tank liquid to 10 ~ 12%;
(2)增加風障，降低溫度消耗
(2) Increase wind barrier and reduce temperature consumption
沼氣池建在背風處或建在沼氣池的西北風壁上，也是降低溫度消耗的簡單方法;
The biogas digester is built on the leeward or the northwest wall of the digester, which is also a simple method to reduce the temperature consumption;
(3)秸稈覆蓋保溫
(3) Straw covering and heat preservation
用農作物秸稈或干草覆蓋池塘也可以減少溫度損失。
Covering ponds with crop straws or hay can also reduce temperature loss.
&The biogas digester can be built on the plastic shed of animal circle, which is not only conducive to the winter heat preservation of livestock and poultry, but also conducive to the liquid temperature of the materials in the digester, and is the best measure for the winter and spring heat preservation of biogas digester.
(5)提高料液溫度
(5) Increase liquid temperature
有條件的好能與太陽能熱水器配套，用溫水沖糞喂到池塘;
If possible, it is best to match with solar water heater, and use warm water to wash manure and feed it to the pond;
If conditions permit, a 50 cm wide trench deeper than frozen soil can be dug around the biogas digester to fill with manure and grass insulation materials, which can play a role in maintaining the temperature in the digester.
企業二維碼
2020-01-07
魯公網安備37011202000764號號