Core Viewpoint - The successful completion of the "70MPa Hydrogen Refueling Station Key Equipment" project marks a significant advancement in China's hydrogen energy infrastructure, showcasing the country's technological independence and breakthroughs in high-pressure hydrogen compression technology [2][4]. Group 1: Project Achievements - The project led to the development of China's first 90MPa diaphragm compressor, filling a gap in domestic high-pressure hydrogen compression equipment [4]. - The compressor operates at an intake pressure of 12.5MPa, with a discharge pressure of no less than 87.5MPa and a discharge flow rate of no less than 200 Nm³/h, while maintaining an axle power of no more than 42kW [4]. - The compressor has successfully completed 500 hours of fault-free operation, including 50 start-stop cycles, validating its reliability [5]. Group 2: Technological Innovations - Key components developed include a 90MPa specialized high-pressure diaphragm head, high-pressure hydrogen gas valves, and a high-pressure oil overflow valve, breaking foreign technology monopolies [5]. - The project also introduced the first health management system for hydrogen refueling station compressors, enabling real-time monitoring, intelligent fault diagnosis, and failure warning throughout the compressor's lifecycle [5]. Group 3: Industry Impact - The project's outcomes have been applied in the 2022 Beijing Winter Olympics, with the "70MPa containerized high-pressure intelligent hydrogen refueling system" recognized as a major technological equipment project by the National Energy Administration [5]. - The successful project completion supports the large-scale construction of 70MPa and above high-pressure hydrogen refueling stations, promoting the autonomy, high performance, and commercialization of China's hydrogen energy industry [5].

Core Viewpoint - The successful completion of the "70MPa Hydrogen Station Key Equipment for Pressurization and Refueling" project marks a significant advancement in China's hydrogen station technology, achieving breakthroughs in high-pressure diaphragm compressor technology and establishing a solid foundation for independent innovation in key technologies and equipment for 70MPa hydrogen stations [12]. Group 1 - The project was led by Inner Mongolia Dongyuan Technology Co., Ltd., in collaboration with several prestigious institutions, including Tsinghua University and Xi'an Jiaotong University, resulting in a series of technological breakthroughs and successful engineering applications [2]. - The team developed the first domestic 90MPa diaphragm compressor for hydrogen stations, achieving an exhaust pressure of ≥87.5MPa and a flow rate of ≥200Nm³/h, with a continuous fault-free operation time exceeding 1000 hours [2][5]. - The project team also created the first health management system for diaphragm compressors in hydrogen stations, integrating full-cycle status monitoring, fault diagnosis, and failure warning [3][6]. Group 2 - The team developed an integrated hydrogen refueling machine and high-precision high-pressure hydrogen refueling flow meter, filling multiple technological gaps, with the refueling machine achieving an accuracy error of < ±1% and an average refueling speed of no less than 1.66kg/min [4][11]. - The project included the development of high-pressure hydrogen refueling speed and temperature optimization control technology, as well as a detection platform for flow, pressure, and temperature in high-pressure hydrogen refueling systems [7]. - Over the project duration, the team applied for more than 50 invention patents, published over 90 high-level papers, and established 6 national and group standards, with key equipment successfully applied during the Beijing 2022 Winter Olympics [10].