Membrane covers for biogas plants from the manufacturer

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About membrane covers for biogas plants

Membrane covers for biogas plants is a modern double membrane roof. It has a relatively large variable gas-storage volume for biogas installations and other purposes. Its shape and membrane pressure mean that weather has little influence on the cover. Our product conforms to all local and European environmental legislation.

Application
GAS COLLECTION IN BIOGAS AND TREATMENT PLANTS
LONG-TERM BIOGAS STORAGE
Biogas cover advantages
01
OPERATIONAL LIFE
The design of each dome is optimized for local climatic conditions and takes into account the wind and snow loads of the region. This significantly increases the service life of your double membrane roof.
02
BIG STORAGE VOLUMES
Variable gas storage volume having 40 m diameter and 8 height is up to 4000 m3.
03
LIGHTWEIGHT AND DURABLE
Thanks to the high chemical resistance and mechanical strength of the membranes, Flexsol W Covers meet the highest quality standards. New cutting and welding techniques allow the covers to better absorb the biaxial forces acting on them. The hemispherical cover model loads the silo wall with the lowest possible force.
Examples of our work
Flexsol W Cover for gas storage

Flexsol W Cover is an innovative double cover system with large variable gas storage capacity in biogas plants.

The Flexsol W Cover is not susceptible to the effects of weather conditions thanks to its streamlined, pressure-formed dome shape.

Thanks to the high chemical resistance and mechanical strength of the textile membranes, the W Cover is able to absorb biaxial forces, and the hemispherical shape provides low stress on the walls of the bunker.

The W Cover consists of two membranes, with the outer one always under pressure. This ensures that rain, snow and wind have no effect on tension or integrity.

W Cover has a huge advantage over conventional storage covers due to the wide range of adjustable gas storage capacity.

Individual approach

Each W Cover is a unique design, developed according to customer specifications and external factors. The dome consists of two separate membranes of double-layer reinforced fabric with a protective polymer coating, which provides chemical resistance.

Adjustable Gas Storage Capacity 

The W Cover is a huge gas storage volume with a diameter of up to 40 meters. The operating pressure varies from 0 to 5 mbar and the pressure relief is up to – 1.5 mbar. Higher pressures are possible on request. Tension straps and mesh provide support for the top and bottom diaphragms during pressure relief, preventing it from coming into contact with the fermentation products. 

 

W Cover Installation

The W Cover is delivered to the job site ready for installation. 

The fastening straps (withstand a force of up to 2,500 kg) and the safety net for desulphurization (withstands up to 400 kg/m2) are installed at an angle. Optionally a service hatch can be installed. 

Maintenance and lifetime 

The membrane cover must be inspected regularly. The glycol level and freezing point are checked at the pressure relief valve. We provide a 5-year warranty on the W Cover.

Advantages

Gas storage capacity in a 30 m diameter gasholder, depending on the shape and height of the dome, can be from 1700 to 5800 m3

The lower membrane has 35% less gas permeability

Easy to operate and repair

Minimal pressure on the hopper thanks to the hemispherical shape of the dome

Wind resistance, low risk of snow accumulation due to its shape

No condensation or corrosion on the walls

Applications

Dome for gas collection in biogas plant.

Dome for gas collection in wastewater treatment plants

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1000+ customers
25 countries
More than 1000 companies from
25 countries use FLEXSOL products
for hermetic storage of liquids
and gases
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