01
Wide Capacity Range
A single unit covers storage duty from medium sites to large municipal projects and works well for peak shaving, buffering, and reserve storage.
Floor-Standing Double Membrane Gas Holder
Floor-Standing Double Membrane Gas Holder
A floor-standing double membrane gas holder for biogas storage, collection, gas supply, and power-support projects.
Product Overview
A stable answer for high-volume gas buffering
A floor-standing double membrane gas holder for biogas storage, collection, gas supply, and power-support projects.
For large biogas plants, wastewater facilities, landfill projects, and industrial anaerobic systems, this format balances capacity, safety margin, and maintenance access.
Core Advantages
Advantages for industrial project delivery
Built around stable operation, efficient installation, and lower long-term maintenance risk for industrial projects.
02
Independent Site Layout
It does not rely on a digester roof or existing structures, so the layout can better follow site access, maintenance, and plot planning.
03
Stable Operating Pressure
Outer-membrane form control and blower logic help maintain smooth back-pressure and reduce downstream process fluctuations.
04
Adaptable to Complex Gas Media
The membrane system and protection package can be adjusted to match hydrogen sulphide level, humidity, and local climate.
Technical Specifications
Key specifications and operating boundaries
| Effective Volume | 300-150,000 m3 |
| Working Pressure | 1,000-5,000 Pa |
| Design Temperature | -40°C to +70°C |
| Installation | 独立基础落地安装 |
| Structure | 内膜储气 + 外膜稳形 + 底膜密封 |
| Service Life | 15-20 years |
Safety Design
Three-level safety protection
Level 1 Protection
Mechanical overpressure and under-pressure protection acts first and prevents the membrane from exceeding allowable stress.
Level 2 Protection
Pressure, level, and blower status are monitored together. Abnormal conditions trigger alarms and corrective air-supply control.
Level 3 Protection
Hard interlocks with the flare, genset, and main inlet valve execute shutoff and safe relief when the system trips.
Structural Design
Dual-channel design
The dual-channel equalization design splits air supply into two relatively independent flow paths. It reduces one-sided bulging, wrinkling, and local stress concentration for more uniform outer-membrane shape control.
Material Standards
Material standards and product features
The membrane system balances UV resistance, fatigue performance, and corrosion resistance.
Automatic hot-wedge welding improves consistency across large membrane panels.
Anchoring and sealing details are built for long-term cyclic duty.
Main Structure
Main Material Structure
| Inner Membrane | PVDF-coated high-strength polyester fabric, 1.0-1.5 mm |
| Outer Membrane | UV-resistant HDPE/PVDF composite membrane, 0.9-1.3 mm |
| Base Membrane | Gas-tight sealing membrane matched to the inner membrane system |
| Clamping Plate | Hot-dip galvanized steel multi-channel sealing profile |
| Anchors | HDG anchor system with reinforced concrete foundation |
Membrane Performance
Methane permeability and membrane specifications
| Membrane System | PVDF / HDPE multi-layer composite |
| Methane Permeability | < 30 cm3/(m2·day·atm) at 23°C |
| Tensile Strength (Warp) | >= 5,500 N / 5 cm |
| Tensile Strength (Weft) | >= 5,000 N / 5 cm |
| Elongation at Break | <= 30% |
| UV Resistance | >= 5,000 h accelerated weathering |
Project Inquiry
If you already have process data, we can move straight into proposal and quotation
Send the capacity, site conditions, and preferred finish or structure, and we will prepare a project-specific recommendation.
Request a Quote