浙江省嘉兴市有一千余户农民用沼气加温养蚕,效果很好。他们加温所用的燃烧器,是用北京四型炉和嘉兴王店A型炉改装的。改装方法很简单,用红外线金属网罩代替燃烧板即成(如图)。用这种改装的燃烧器,对8m~3的塑料薄膜网台加温半小时,温度可上升华氏10度,耗沼气0.25m~3,保温1.5—2小时。这种燃烧器深受蚕区农民和技术员的欢迎。 Jiaxing City, Zhejiang Province, more than a thousand farmers use biogas heating sericulture, the effect is very good. The burners they used to heat up were retrofitted with Type A furnaces from Beijing Four-Furnace and Jiaxing Wangdian. Refit the method is very simple, replace the burning plate with infrared metal grille (Figure). With this modified burner, 8m ~ 3 plastic film network heating half an hour, the temperature can be increased 10 degrees Fahrenheit, methane consumption 0.25m ~ 3, insulation 1.5-2 hours. This burner is well received by farmers and technicians in Silkworm Area.