Gas mixers and gas mixing systems: precision, safety and versatility in industry
Gas mixers and gas mixing systems are central components of numerous industrial processes that enable the precise and reliable mixing of technical gases. Whether in the automotive industry, chemicals, food packaging or the energy transition – these systems ensure that gas mixtures are provided in the exact ratios required to guarantee optimum process conditions.
Basics of gas mixing technology
A gas mixer mixes two or more gases from different sources such as cylinders, bundles or liquid gas vaporisers. The mixing principles vary:
- Pressure-based systems utilise the partial pressures of the gases.
- Flow-based systems regulate volume flows at a constant pressure.
- Mass flow-based systems work with precise electronic measurements of the gas masses.
The choice of system depends on the requirements for accuracy, throughput and the physical properties of the gases. Modern gas mixers achieve a mixing accuracy of up to ±0.1 %, which is essential for many demanding applications.
Versatile areas of application
Gas mixers are used in many industries:
- Automotive industry: High-precision welding and forming gases for metalworking processes.
- Chemical industry: Dosing of reaction gases and protective gases such as lean air.
- Food industry: protective gas packaging with N₂, CO₂ and oxygen to extend shelf life.
- Welding technology: Customised shielding gas mixtures for various welding processes.
- Glass production: forming gases and special gas mixtures to improve production efficiency.
- Energy transition: Blending natural gas with hydrogen or renewable gases for green technologies.
Technical components and safety
A gas mixer consists of gas inlets with filters, pressure and flow regulators, a mixing chamber, sensors and a control unit that monitors and controls the mixing process. Safety devices such as non-return valves, flame arresters, gas warning systems and emergency shutdowns are integral components in order to minimise risks from explosive or aggressive gases. Redundant systems ensure an uninterrupted supply and increase system availability.
Advantages of on-site gas mixing
The production of gas mixtures on site offers clear advantages over premixed gas cylinders:
- Cost efficiency: Savings on storage and purchasing premixed gases.
- Flexibility: Quick adjustment of the gas composition to meet changing process requirements.
- Security of supply: Continuous gas supply without interruptions.
- Space saving: Less storage space due to reduced need for different gas cylinders.
- Quality control: Permanent monitoring and documentation of the gas composition.
Conclusion
Gas mixers and gas mixing systems are indispensable tools in modern industry. They enable precise, safe and flexible gas mixing solutions that reduce costs and increase process quality. With comprehensive engineering, production and service, suppliers such as LT GASETECHNIK support companies in the optimal realisation of their gas mixing systems – from planning to commissioning and maintenance.
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