Biogas Holder With Weighted Flexible Bag for Constant Pressure
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Solution Overview
Problem
Existing energy or gas generation plants are bulky, require separate gas storage containers, and have complex designs with multiple tanks, leading to high costs and inefficient use of space.
Innovation Solution
A compact design integrating a gas holder with a guiding frame and flexible bag system that maintains static pressure, allowing for efficient gas storage and utilization, and a controller to manage gas volume and pressure for optimal power generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a separate large gas storage container is used to store biogas, then the gas storage capacity is sufficient, but the plant becomes bulky and requires two separate containers
Solution Approach 1:
The gas holder is integrated directly into the anaerobic digester structure, combining the digestion chamber and gas storage function into a single unit. The digester itself serves as the gas holder, eliminating the need for a separate large gas storage container while maintaining sufficient storage capacity for biogas
Solution Approach 2:
The anaerobic digester performs multiple functions: it serves as both the digestion reactor and the gas storage container. The same structure that processes organic waste also stores the generated biogas, maximizing space utilization and reducing overall plant footprint
2Reliability
If multiple small holding tanks followed by a large holding tank are used for digestion, then the digestion process is optimized, but the design becomes complicated and expensive
Solution Approach 1:
Multiple digestion functions are combined into a single integrated digester structure. The system uses one large digester that can handle different digestion stages internally, eliminating the need for multiple separate tanks while maintaining process optimization
Solution Approach 2:
The single digester is divided into functional zones or stages within its structure, allowing different digestion processes to occur in sequence within the same container, reducing the number of external tanks needed
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reduces the plant's footprint by up to 85% compared to prior art, enabling transportability and efficient gas storage without flaring excess biogas, while maintaining a constant pressure for continuous power generation.
Implementation Method 1
an aquatic tank for receiving the organic waste or fragments of organic waste, which aquatic tank is connected to an anaerobic digester for digesting the organic waste
Implementation Method 2
said up-and-down movable weight frame provides a continuous load on the flexible bag so as to enable that a volume content of the flexible bag is changeable whilst maintaining a static pressure in the flexible bag
Data Source
Figure 1
Figure 2A~3
AI summary
An energy or gas generation plant comprising a receiving station (1) for organic waste (2), optionally a macerator, shredder or cutter (3) connected to the receiving station (1) for processing the organic waste (2) into fragments of organic waste, an aquatic tank (4) for receiving the organic waste (2) or fragments of organic waste, which aquatic tank (4) is connected to an anaerobic digester (6) for digesting the organic waste (2), wherein a gas holder (15) connects to the anaerobic digester (6) to receive gas from the anaerobic digester (6), and wherein a power system (16) fuelled by said gas is connected to the gas holder (15), wherein the gas holder (15) comprises a guiding frame (20) to guide an up-and- down movable weight frame (21), wherein below the weight frame (21) a flexible bag (22) is provided for receipt and storage of said gas originating from the anaerobic digester (6), and which flexible bag (22) supports the weight frame (21), wherein said up-and-down movable weight frame (21) provides a continuous load on the flexible bag (22) so as to enable that a volume content of the flexible bag (22) is changeable whilst maintaining a static pressure in the flexible bag (22) as determined by the up-and-down movable weight frame (21).