Do you know Ultrasonic electrolytic hydrogen coating machine?

Do you know Ultrasonic electrolytic hydrogen coating machine?

Ultrasonic electrolytic hydrogen atomization spraying is an advanced spraying technology used in the hydrogen energy sector, primarily for the preparation of electrolytic cell coatings. The following is a detailed introduction:

Principle: A piezoelectric transducer converts high-frequency sound waves (20kHz-200kHz) into mechanical energy. The transducer receives high-frequency electrical signals from an ultrasonic generator and converts them into mechanical vibrations of the same frequency. These vertical upward and downward vibrations generate standing waves in the liquid film at the tip of the ultrasonic nozzle. The wave amplitude can be controlled by a power generator. When the droplets leave the nozzle's atomizing surface, they are broken down into a uniform mist of micron- or even nanometer-sized droplets, achieving atomized spraying.

Equipment Components: The entire system typically consists of an ultrasonic atomizing nozzle, a dedicated drive power supply, an XYZ three-axis linkage servo system, an intelligent operating system, a liquid supply system, a low-speed air shaping device, and an external housing.

Advantages: Excellent coating uniformity: It achieves a highly uniform catalyst layer and evenly disperses suspended particles, resulting in highly efficient coatings for single- or double-sided electrolytic cells. High Material Utilization: Nanoscale coating thickness control is achieved, with catalyst loading tolerances of less than ±5% and material utilization rates exceeding 90%, reducing waste of expensive materials such as precious metals.

Precise Control: Ultra-low flow rate capability allows for intermittent or continuous operation, enabling precise control of atomization flow and spray volume. This ensures more reliable spray quality and easily forms spray patterns, making it suitable for precision coating applications.

Energy-Saving and Environmentally Friendly: Atomization requires no cooling water, resulting in low energy consumption. Ultrasonic spraying offers minimal impact, eliminating liquid splashing and reducing material waste and air pollution caused by back-spray.

Adaptability: Atomized particle size is determined by the ultrasonic frequency, independent of nozzle diameter. The nozzle is compatible with a wide range of solutions, including sewage, chemical liquids, and oil-based viscous fluids, without the risk of nozzle wear or clogging.

Applications
Hydrogen Fuel Cell Production: Ideal for coating PEM electrolyzers, this system sprays carbon-based catalyst ink onto the electrolyte membrane. The fully automated equipment is capable of double-sided coating, and different catalyst formulations can be applied to each side of the membrane, extending the life of the PEM coating and improving efficiency.

Solid-State Hydrogen Storage: Through micron-level precision deposition, low-temperature processing, and multi-layer heterogeneous integration, it can increase the catalytic efficiency of solid-state hydrogen storage materials by over 40%, extend the life of high-pressure hydrogen storage vessels by two times, and reduce the amount of precious metals used in organic hydrogen storage catalysts by 50%.

I. Key Application Scenarios in Hydrogen Electrolysis

1. Efficient Catalyst Coating
Catalysts are the core materials in the water electrolysis reaction for hydrogen production. Their uniformity of distribution directly impacts hydrogen production efficiency and electrode life. Ultrasonic spraying technology allows for a uniform coating of precious metal catalysts, such as platinum and iridium, on the electrode surface, avoiding the agglomeration and localized over-thickness associated with traditional spraying, thereby increasing catalyst utilization by over 30%. For example, in proton exchange membrane (PEM) electrolyzers, a uniform catalyst layer can reduce the overpotential of the hydrogen/oxygen evolution reactions, thereby increasing the current density and hydrogen production rate.

2. Application of Ultrasonic Spraying Technology in Hydrogen Storage Equipment: Hydrogen storage equipment is a critical component of hydrogen energy utilization, and its performance directly impacts the storage and transportation efficiency of hydrogen energy. Ultrasonic spraying technology can spray hydrogen storage materials onto metal or plastic containers, forming a uniform hydrogen storage layer, thereby increasing hydrogen storage capacity and safety. This technology not only improves the performance of hydrogen storage equipment but also reduces manufacturing costs, providing strong support for the widespread application of hydrogen storage equipment.

4. Hydrogen Transmission Pipelines: Hydrogen transmission pipelines are critical infrastructure for hydrogen transmission, and their performance directly impacts the efficiency and safety of hydrogen transmission. Ultrasonic spraying technology can be used for coating hydrogen transmission pipelines. By applying anti-corrosion and wear-resistant coatings, the pipeline's service life can be extended and maintenance costs reduced. This technology not only improves the performance and safety of hydrogen transmission pipelines but also reduces operating costs, providing strong support for their widespread application. In summary, the main applications of ultrasonic spraying equipment in the hydrogen energy sector include spraying membrane electrode assemblies (MEAs) for fuel cells, optimizing key materials and components in water electrolysis hydrogen production processes, and pipeline equipment for hydrogen storage and transportation. These applications help improve hydrogen production efficiency and quality, driving the development of the hydrogen energy industry.

Features of Ultrasonic Atomization Spraying Equipment, Automatic Conveyor, and Hydrogen Electrolyzer:
◆ Uniform thin film coverage of various surface contours
◆ Non-contact spraying
◆ Micro-airflow spraying, multiple liquid feeding options
◆ High-speed control accuracy
◆ High liquid utilization
◆ High flexibility in chemical and coating properties
◆ Spray spraying
◆ High transfer efficiency and minimal waste
◆ Repeatable, proven spraying process