Air‑Supported Anti‑Freeze Thermal Insulation Membrane Core Principle: Dual‑driven by Air‑pressure Support & Intelligent Thermal Insulation
Anti‑freezing and thermal insulation are essential for the operation of sewage thickening tanks. The air‑supported anti‑freeze insulation cover built over sewage thickening tanks provides reliable guarantee for their stable operation with unique technical principles.
(I) Column‑free Large‑space Supported by Air Pressure
Our air‑supported structure adopts high‑strength PVDF membrane material, a premium‑grade membrane product. The fan system maintains a pressure difference of 250‑300 Pa between the inside and outside, forming an air‑supported structure. It acts as a sturdy protective cover for the sewage thickening tank, capable of spanning over 100 meters without any columns or beams. Conventional steel structures for large‑span projects usually come with high costs and difficult construction, while our air‑supported membrane solves these problems effectively. With a lightweight membrane weight of only 3 kg/㎡, it imposes very low requirements on foundation bearing capacity and can adapt smoothly even to soft‑soil ground conditions.
(II) Multi‑layer Insulation System Blocks Heat Exchange
Double‑layer Membrane Structure: The double‑layer membrane works like a warm double‑layer coat for the sewage tank. An air insulation layer is formed between the inner and outer membranes, improving the thermal insulation coefficient by 45 % compared with a single‑layer membrane. Equivalent to hollow glass in traditional buildings, it effectively reduces heat loss.
Composite Insulation Cotton Layer: For frigid‑climate zones, an 80‑100 mm‑thick insulation cotton layer plus a thermal‑reflective coating can be installed, serving as an extra warm inner liner. In cold winter conditions, the indoor temperature can be steadily kept above 15℃, delivering insulation performance comparable to brick‑concrete buildings and protecting sewage thickening tanks against severe cold.
Intelligent Temperature‑control System: Known as the smart brain of the anti‑freeze insulation membrane, this system integrates temperature sensors and heat‑pump units to automatically adjust heating power. Equipped with a heat‑recovery device, it makes full use of energy and cuts energy consumption down to 1/5 of that of conventional buildings, achieving both energy‑saving and high efficiency.
