Hydraulic Motor Driven Air Compressor

 

1. Fixed hydrogen refueling station: equipped with unloading, boosting, storage, and cooling modules, it can achieve remote refueling, critical equipment status monitoring, cloud computing, and big data analysis, with fast refueling speed and high refueling rate
2. Skid mounted hydrogen refueling station: It integrates hydrogenation, cooling, metering, and digital control, and equipment manufacturing, testing, debugging, and other processes are completed in the factory. The station construction is convenient, flexible, efficient, and has a short cycle

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.

Name	Displacement	Exhaust pressure	Inlet pressure	Maximum exhaust temperature	Exhaust temperature (aftercooling)	Service life of seals	Main motor power	Noise
Parameter	≥1000Nm³/h@12.5MPa	45MPa	2~20MPa	≤120℃	≤40℃	≥2000h	110kW	≤80dB(A)

 

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.

Indicator	Exhaust pressure	Default Dispensing Capacity	Operating Temperature
Parameter	45MPa	1000Kg/day	-25-55℃

 

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.

Name	Flow range	Measurement error	Measurement repeatability	Operating pressure	Explosion-proof grade
Parameter	0~5.0Kg/min	±1.5%	0.50%	35MPa/70 MPa	ExdemibllCT4Gb

 

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.

Name	Applicable medium	Operating pressure	Design pressure	Environment temperature	Rating
Parameter	H2	45MPa	50MPa	-40°C~50°C	III

 

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.

Name	Applicable medium	Operating pressure	Design pressure	Measurement repeatability	Filtration accuracy
Parameter	H2	0~20MPa	25MPa	0.50%	5μm

 

 

Advantages of the entire skid solution for compressors: safe and reliable integration design

1. Explosion-proof level of electrical equipment: Ex ia/d IIC T4, supplied by first-class high-pressure pipe valve manufacturers

2. Designed for zero accumulation and free ventilation of hydrogen across the entire skid

3. Simulation design of the system pipeline and structure for vibration and noise reduction in the structure

Please contact us for more information about our products.

 

SANY Hydrogen Energy is favored by global customers with its overseas high-quality after-sales service system. Supported by the Overseas Business Department of SANY Group, we are committed to providing customers with a full range of hydrogen producing and refueling services, including on-site maintenance, technical services, and relevant personnel training.

Hydrogen producing equipment service program

1. On-site maintenance and technical service

1.1 Design and technical services

• Cooperating with the designers to finish the detailed design.
• Participating in the design review and engineering coordination meeting organized by the purchaser.

1.2 On-site services

• Responsible for guiding the on-site installation of the supplied equipment.
• Guiding the first start-up commissioning and delivery of the full equipment package.
• Providing comprehensive technical training for equipment maintenance personnel.

1.3 After-sales services

• Responding to and guiding the troubleshooting for equipment quality or man-made operation failures within 24 hours.
• Providing information on manufacturers of spare parts, and supporting the model selection and purchase.
• Providing free technical services before the warranty expires.

2. Training

2.1 Technical disclosure and services

• Responsible for the installation and commissioning of the equipment.
• Training the users' technicians and operators during the term of on-site services.

2.2 Services in use

• Providing fast and high-quality services in use to ensure the normal operation of the equipment.
• Providing information on manufacturers of spare parts, and supporting the model selection and purchase.
• Providing information on the latest technology development and newly developed parts.

 

Hydrogen refueling equipment service program

1. Warranty

1.1 Quality standards and requirements

• The equipment, materials and outsourcing kits should meet the relevant specification requirements and national standards.
• The performance of the equipment should meet the parameters in the technical specifications and the standard specifications for manufacturing, testing and acceptance.

1.2 Warranty period

• The warranty should expire 1 year after acceptance.
• During the warranty period, we are committed to free repair of any faults and damages that are caused by man-made errors, and free replacement of failed parts.

 

2. On-site and after-sales services

2.1 Response and service time

• During the warranty period, we are committed to response within 2 hours, and sending qualified engineers and technicians to the site for inspection and maintenance within 24 hours.

2.2 Engineering design and civil construction

• Conducting technical disclosure with equipment manufacturers and design institutes, and supporting the completion of the equipment construction design drawings.
• During the civil construction stage, we are committed to sending engineers and technicians to the site to ensure that the construction is carried out in accordance with the technical requirements and design drawings.

2.3 Delivery, installation and completion acceptance of equipment

• Guiding the hoisting and positioning of the equipment, and supporting the users in the preliminary acceptance.
• Providing relevant technical support and communication, including installation requirements and electrical instructions for on-site equipment interfaces.

During the completion and acceptance, we are committed to providing commissioning plans and schedules, carrying out system commissioning, and preparing commissioning and acceptance reports.

 

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