| 摘要 |
Tank for the storage of gas under low pressure, in particular biogas, which is produced by anaerobic fermentation from organic matter, such as stable manure or liquid manure. The tank (1, 2, 3, 4) contains an inner wall with a membrane (5) from for instance soft and flexible, thin PVC which can be loaded on the one hand with ballast, such as water (7) and or stones (6) and the like, and can be placed on the other hand under increased pressure of a fluid F, such as air, by means of a blower (15) with a conduit (14), whereas the pressure of the biogas (G) can be decreased by means of a suction blower (12) until a suitable balanced position of the inner wall is obtained. The inner wall can exist either wholly out of the membrane (5) or partly from a border membrane (5a) with a central solid middle part (9). |
