论文部分内容阅读
两种形状浮罩的选择目前我国农村除水压式沼气池外,尚有一种分离贮气式沼气池。即将水压式沼气池的贮气箱分出,单设贮气装置——浮罩,置于水封池内,靠浮罩自重控压供气,归属湿式贮气装置一类。浮罩采用混凝土薄壳结构,形状主要有两种:内腔径、高近乎相等(D≈H)的高圆柱形及径高比为2∶1(D=2H)的扁圆柱形,以下简称高罩和扁罩。一、高圆柱形浮罩(D≈H)(参照杭州市推广沼气办公室6米~3分离式浮罩沼气池用0.8米~3浮罩之图示尺寸复算)前提:浮罩等壁厚。拱顶矢跨比1∶10,表面积计算时视为圆形平板。浮罩容积以圆柱段为可比容积,忽略拱顶容积。拱顶与圆柱段转接处在壁内外视为同高。罩下缘内翻加强边重量不
The choice of two forms of floating cover At present, in addition to hydropower type rural biogas digesters, there is a separate storage biogas digesters. Will be pressured biogas storage tank separated, a single set of gas storage device - floating cover, placed in the water seal pool, rely on the weight of the floating pressure control air supply, belonging to a type of wet air storage device. The pontoon is made of concrete thin shell with two main shapes: the inner cylinder diameter, the high cylinder with nearly equal height (D≈H) and the flat cylinder with the diameter to height ratio of 2:1 (D = 2H), the following abbreviation High hood and flat hood. First, the high cylindrical floating hood (D ≈ H) (refer to the promotion of Hangzhou Biogas Office 6 m ~ 3 separate float marsh digesters with 0.8 m ~ . Vault aspect ratio of 1:10, the surface area is calculated as a circular plate. Floating volume to cylindrical section for the comparable volume, ignoring the vault volume. Vault and cylindrical section at the junction of the wall as high as the same. Enclosed lower edge of the edge to enhance the edge of the weight is not