What Are the Different Types of Double Membrane Gas Holders?

The editor from Qingdao Haiyue will take you to learn about the different types of double membrane gas holders.

Double membrane gas holders are mainly divided into independent double membrane gas holders and integrated double membrane gas holders, widely used in biogas production and storage industries.

The independent double membrane gas holder features a three-quarter spherical gas storage structure, consisting of three core components: outer membrane, inner membrane and base membrane. Based on site and construction requirements, it can be categorized into underground type, above-ground type, concrete suspended type and steel structure suspended type.

The concrete suspended and steel suspended gas holders are specially designed to maximize space utilization by making full use of vertical space. The concrete suspended gas holder adopts concrete as the main supporting material with solid and stable structure. In contrast, the steel structure suspended gas holder uses steel supports, featuring light weight and convenient on-site installation.

The integrated double membrane gas holder combines anaerobic fermentation and gas storage into one complete unit. Its bottom part serves as the anaerobic fermentation tank, while the upper section adopts the mature three-quarter spherical double membrane gas storage structure. This design realizes synchronous biogas fermentation and storage without separate gas storage equipment.

According to different engineering demands, the bottom fermentation tanks are available in welded tank, assembled tank and concrete tank. Enamel assembled tanks are the most mainstream option for integrated gas holders, favored by biogas projects of livestock farms, sewage treatment plants and kitchen waste disposal facilities.

To sum up, independent double membrane gas holders focus solely on biogas storage with flexible matching for various projects. Integrated gas holders boast high integration and cost advantages. Project owners can select the proper model according to project scale, site conditions and technical requirements to guarantee stable and efficient operation of biogas engineering.