Air Compressor Skid Package

To develop the customized equipment package for fixed/skid-mounted hydrogen refueling stations according to different needs of customers.

1.Fixed hydrogen refueling station: Equipped with unloading, pressurization, storage and cooling units for remote dispensing, monitoring of key equipment status, cloud computing and big data analysis with higher efficiency and utilization rate.

2.Skid-mounted hydrogen refueling station: Integrating hydrogen refueling, cooling, metering, and digital control. With the equipment manufacturing, testing, commissioning and other processes completed in the factory, it is easy and efficient to build the station in a short period.

3.Fixed/skid-mounted hydrogen refueling stations: Available for customization and assembly according to customers'needs, and compatible with diaphragm or liquid-driven compressors.

1. Liquid driven compressor

■ For the compressor, the oil cylinder is separated from the gas cylinder, of which the oil-free lubrication is used for the piston, preventing the compressed medium from being contaminated during the compression process. Multi-seal is used for the gas and oil chambers in a special form of oil-gas isolation chambers to completely separate oil and gas. This structure of oil-gas isolation chambers ensures that hydrogen will not be exposed to oil even in case of any damage to the sealing ring, which further maintains the gas purity at the outlet. No lubrication system is needed for this compressor without components such as crankshafts and connecting rods.

■ Hydraulic piston compressors have a low linear speed and switching frequency. In contrast to other types of reciprocating compressors, hydraulic piston compressors have extremely low reciprocating frequency and piston linear speed, ensuring prolonged service life the sealing and valves.

■ The gas cylinder piston of the compressor is driven by a hydraulic system with less vibrations and low noise, in which the motor drives the high-pressure oil pump and then the compression cylinder under stable loading and operating conditions, extending the service life of the compression cylinder and motor.

Powerful displacement: The excellent performance of this compressor is reflected in its powerful displacement, reaching 1000Nm³/H@12.5MPa provides sufficient power support for the hydrogenation process.
High pressure output: The exhaust pressure can reach up to 45MPa, making it excellent in high-pressure processes such as hydrogenation, ensuring efficient and stable operation of the production process.
Wide range adaptability: The inlet pressure range is wide, from 2MPa to 20MPa, which can be applied to different working conditions and has excellent flexibility.
Excellent temperature control: The maximum exhaust temperature does not exceed 120 ℃, and after cooling, the exhaust temperature is even lower than 40 ℃, effectively ensuring the stability of the equipment during long-term operation.

Equipment reliability

• Long sealing life: The equipment adopts advanced sealing technology to ensure a sealing life of over 2000 hours, greatly reducing maintenance frequency and production downtime, and improving the overall reliability of the equipment.
• Efficient motor drive: The main motor power is 110kW, providing strong driving force for equipment, ensuring efficient and stable operation, and reducing energy consumption costs.
• Low noise design: The equipment noise is controlled below 80dB (A), taking into account the high sensitivity of modern industrial environments to noise, ensuring a safe working environment for operators.

2. Compressor skids

Module-based design: Modules are separated for the hydraulic system, compression system, heat exchange system, and pipeline system in the structure for easy operation and maintenance.

Safety and reliability: The electrical components within skids are explosion-proof with a reliable electrostatic grounding system. Full-lift safety valves are used to prevent the equipment from overpressure. A gas detector is inserted in the skids which are connected to the ESD system of the compressor to automatically shut down and cut off the gas inlet in an emergency.

Highly automatic design: The PLC fully automatic control system is adopted for the control of the compressor. The control panel can show and check the operating status of the compressor with alarm and automatic diagnosis features. One-click start, fault warning/diagnosis and other features are available.

Full water-cooling system: It supports more efficient heat exchange, lower exhaust temperature, and lower operating temperature.

The explosion-proof certification has been attained for the entire equipment as required by the regulations of the region where the user is located.

3. Hydrogen dispenser

Fully automatic control: one-click operation available for hydrogen refueling with leakage detection, alarm and shutdown features. When it comes to the set pressure of 35 MPa/70 MPa during refueling, it stops automatically to maintain safety at the underlying level.

Wide flow range: The flow range of the hydrogen dispenser is 0-5.0 kg/min, which can meet the demand for hydrogen refueling in different applications from small-scale in laboratories to large-scale use in industrial cases.

High-precision measurement: The measurement fault of only ±1.5% and the measurement repeatability of up to 0.5% ensure the accurate measurement and pricing of hydrogen refueling.

Safety and explosion-proof design: The explosion-proof level of the equipment is certified as Ex d e ib mb llC T4Gb, which ensures that the equipment can run in a safe and stable environment as a trustworthy safety guarantee for the refueling process.

4. Sequence control panel

Module-based design: The overall pipeline structure is module-based, which is easy for staff to repair and maintain.

Efficient program control design: Automatic refueling/storage are available with multiple nozzles to refuel the hydrogen-fueled vehicles at the same time.

Safe and reliable design: The hydrogen pipes are connected by Autoclave fittings (C&T fittings) or NPT fittings. Electrical components meet the explosion-proof requirements.

Adaptable to various conditions: The sequence control panel can work well under various environmental conditions, of which the operating temperature ranges from -40°C to 50°C, making it adaptable to various operating conditions.

5. Discharging column

Sophisticated pipeline design: The entire pipeline is arranged following a clear flow process made up of primary and secondary sections. The primary section (for hydrogen) and secondary section (for nitrogen purging used in the replacement reactions) are easy to identify, which can effectively improve the accuracy and safety of operations and reduce misoperation.

Safe and reliable design: The gas for instruments and purging are isolated. Full-lift safety valves are used. The pipeline is designed with an automatic leak detection feature.

Precise measurement repeatability: The measurement repeatability of the discharging column is 0.5%. Precise measurement control ensures accurate and stable discharging.

High filtration precision: High-efficiency filters of 5μm can remove other impurities from hydrogen and improve the purity of hydrogen.

Solutions for integrated stations:

We aim for a highly integrated independent hydraulic compressor skid. Based on the self-developed core compressor system, we conduct the matching calculation and integrated design according to different module and features of the system, forming a comprehensive solution for skids that are highly adaptable to the integrated system.

Compressor system:

The new hydraulic power system design and the adaptability optimization of the entire system facilitate the adaptive dynamic adjustment under various working conditions for prolonged service life.

1. We conduct research on the dual-pump two-stage compression system, aiming for the minimum intake pressure and optimal exhaust temperature control through adaptive adjustment of the pressure ratio under variable operating conditions;

2. System power control is available for variable operating conditions for constant power control under different intake pressures, meeting the requirements for fastest refueling without overloading;

3. Compressor system reliability research involves compressor diagnosis development, durability testing for components, structure and sealing of the system.

FAQ

1. Do products of SANY Hydrogen Energy have any certification offered by authoritative organizations?

The 1000 Nm³/h Hydrogen Production System has been offered the "Top Runner Program Evaluation" Certification by DEKRA Quality Management Certification. The 200 Nm³/h Skid-mounted AWE Hydrogen Production equipment has applied for CE Marking Certification which is estimated to be granted from May to June 2024.

2. What is the level of after-sales services of SANY Hydrogen Energy? Will the relevant rights and interests of foreign customers be properly guaranteed?

As the hydrogen energy industry grows vigorously worldwide, SANY Hydrogen Energy is rising fast thanks to the sophisticated after-sales service system for foreign customers. Relying on the overseas business department of SANY Group, SANY Hydrogen Energy provides customers with a full range of after-sales services in terms of hydrogen production and refueling, ranging from on-site warranty and technical training for relevant staff who have acquired relevant certifications. SANY Hydrogen Energy always adheres to the principles of high standards and full-process services and a professional, efficient and considerate attitude for services such as on-site testing, equipment maintenance, training or technical services to ensure that customers have an access to the best services, with a commitment to becoming one of the most trustworthy partners in the hydrogen energy industry for customers.

Please contact us for more information about products.

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