Free Standing Double Membrane Biogas Holder

Free Standing Double Membrane Biogas Holder

Brief introduction of free standing double membrane biogas holder
The double membrane biogas holder consists of an outer membrane and of an inner and a floor membrane forming the actual gas space. A permanently running support air blower supplies air into the space between the inner and outer membranes to keep the gas pressure at a constant level regardless of gas supply and withdrawal.
In the standard configuration, a specially designed blower with a flat characteristic pressure curve combines high operational safety with Maximum profitability. The operating pressure in the free standing double Membrane biogas holder thus remains constant, regardless of the amount of gas taken in or flowing out.
The supporting air helps to hold the shape of the outer membrane. This enables the biogas holder to withstand external loads, such as wind or snow. At the same time, the inner Membrane is also under slight pressure. This "operating pressure" serves to recirculate the Biogas stored in the plant.
The gas charge and discharge pipes are cast into the concrete foundations that are usually supplied by the customer. All three membranes are then clamped to the foundation by means of an anchor ring. The safety valve prevents the gas holder from over-pressure on the gas-side. To maintain a constant pressure within the gas holder, a pressure control valve is mounted on the air-side. Filling levels are measured by means of ultrasonic and wire length measurement systems. System safety, reliability and control simplicity is the main priority in product design and manufacturing principles.

The Free Standing Double Membrane Biogas Holder: STANDARD SCOPE OF SUPPLY:
The Standard MONDES PROCESS EQUIPMENT package includes:

• Internal membrane, fabricated to dimensions to suit required volume containment, designed to with stand all in-service conditions. Standard colour: Grey.

• External membrane, fabricated to dimensions to suit required volume containment, designed to withstand all in-service conditions. Standard colour: White. (Other colour available at additional cost). The external membrane comes complete with:

• DN300 acrylic viewing port, complete with frame and fixings and reinforced opening in membrane.

• Reinforced openings for air supply hose and air exhaust hose.

• Top plate for ultrasonic level transducer and physical pressure relief valve.

• Internal bottom membrane. Standard colour: Yellow

• All necessary perimeter embedded parts, pressing plate, sealant strips.

• Duty and Standby blowers rated according to the pressure and volume flow requirements of the system. All necessary air hose. Non-return valve for each blower (constructed from stainless steel and aluminium for non-sparking operation).

• Air exhaust hose and balanced regulator valve, rated according to the pressure and volume flow requirements of the system. Regulator valve constructed from stainless steel and aluminium for non-sparking operation.

• Ultrasonic level transducer and instrumentation.

• Pressure sensor and mounting plate

Internal membrane and external membrane safety water seal.

Advantages of free standing double membrane biogas holder
- Lower Investment and maintenance costs
- Easy Maintenance
- Quick Installation within a few days on an existing foundation
- Very high operating pressures
- Large volumes
- Suitable for highest snow and wind loads
- Permanently gas-tight
- High operational reliability
- Exact level metering

Quality service and warranty of free standing double membrane biogas holder

• 100% quality testing for every finished product before delivery;

• Professional Aging testing room for aging testing time over 8 hours

• Professional function testing for every process

• One year warranty service for whole set equipment.

• to repair the outer-membrane and inner-membrane for free within 10 years.

• free replacement for outer membrane and inner membrane within 3 years since customer receives equipment.

Pricing of free standing double membrane biogas holder
Pricing varies depending on capacity required, operating pressure and gas production and utilization rates. Quotations are provided within 48 hours of request when accompanied by minimum required specification data.
Minimum specification data required in order to provide a quote:
- Required Gas Storage Capacity (m³)
- Operating Pressure (Kpa or mbar)
- Gas Production & Utilization rates (m³/hr)