Biogas Compressor

Description

Product Advantages

 

Flexible Configuration: Customizable to meet specific requirements, accommodating higher pressure ranges or pressurized intake conditions.

High-Efficiency Operation: Achieves optimal operational efficiency through an optimized lubrication system, cooling system, and rotor-to-casing sealing design.

Economical and Practical: Features low operating costs and minimal maintenance expenses.

Innovative Rotor Design: Employs a non-contact rotor structure, eliminating the need for timing gears.

Compact and Lightweight: The unit features a compact structure and lightweight design, facilitating easy installation.

 

Biogas Compressor Specifications

 

Biogas Compressors FAQ

 

Q1:What are the main structural components of a biogas compressor?

A1:The core components of a biogas compressor include the main compressor unit (either screw-type or piston-type), an oil-gas separator, a gas-liquid separation device, and an explosion-proof control system. Specifically, the structure can be categorized into the following modules:

Intake Assembly: Equipped with a check valve to prevent gas backflow and an internal filter to facilitate preliminary purification.

Compression Unit: Employs a water-cooling system to maintain operating temperature and achieves progressive pressurization through multi-stage compression.

Regulation System: Composed of an oil-gas separator combined with a cooling device.

Safety Components: Includes explosion-proof pressure sensors, leak detectors, and a dual-mode alarm module.

Furthermore, the main body of the biogas compressor consists of two major sections: moving parts (crankshaft, connecting rod, crosshead, piston, and valves) and stationary parts (machine frame, intermediate body, cylinder head, cylinder, and cylinder base).

Q2:Why are biogas compressors prone to gas leakage?

A2:Gas leakage is a common issue during the operation of biogas compressors. The primary reasons are as follows:

Seal Wear: Prolonged friction between the piston rings and the cylinder walls causes wear; when this wear exceeds 10%–15% of the original thickness, leakage becomes significantly more severe.

Seal Aging: Seals made of materials such as rubber have a service life of approximately 1–3 years when exposed to high temperatures and corrosive gases; once this period is exceeded, they are prone to hardening and cracking.

Improper Installation: Seals are not correctly seated within their sealing grooves, or they have been installed in the wrong orientation.

Loose Connections: Vibrations generated during compressor operation cause connecting components—such as bolts—to gradually loosen.

Cylinder Wear or Cracks: Long-term operation leads to wear on the inner walls of the cylinder or the formation of cracks.

Damaged Valves: Damage to valve plates, spring failure, or similar issues prevent the valves from closing properly.

Q3:What role does a biogas compressor play in biogas purification?

A3:Compressors are a critical component in the process of upgrading raw biogas into Renewable Natural Gas (RNG). The raw biogas must be compressed to a higher pressure to pass through specialized membrane separation systems, which filter out the substantial volume of CO₂ present in the gas. Prior to entering the membranes, the biogas also undergoes treatment using activated carbon and condensation dryers to remove volatile organic compounds and excess moisture. The resulting RNG possesses chemical properties identical to the gas found in natural gas pipelines; it can be injected into the natural gas grid or utilized to power operations.