Thread Content
On December 1, 2022, the China General Machinery Industry Association and the **Pipeline Network Group LNG Terminal Management Company organized an evaluation meeting for the prototype versions of the \"Domestic low-pressure pumps for LNG terminals (CTSV460-289)\” and \"High-pressure export pumps for LNG terminals (CMSV435-2342)\”), which were developed jointly by Shanghai Apollo Machinery Co., Ltd. and **Pipeline Network Dalian LNG Co., Ltd.». Additionally, an evaluation was conducted on the \"LNG medium low-temperature pump and valve testing bench\", which was developed in collaboration with Ningxia Nali Feng Energy Utilization Co., Ltd. and Shanghai Jiao Tong University. The experts present listened to the summary report on the development efforts and reviewed the technical documents. Before the meeting, representative experts visited the sites where the prototype was manufactured and tested, and witnessed the operational tests of the test bench using LNG as the medium. Following inquiries and discussions, the expert group reached the conclusion that, thanks to features such as the development of high-power (2100 kilowatts) motors for ultra-low temperature conditions, efficient hydraulic models with extremely low net positive suction head, and mechanisms for self-balancing axial forces, high-pressure transfer pumps can operate stably and reliably in ultra-low temperature environments. The overall performance indicators have reached an internationally advanced level, with certain indicators such as efficiency and vibration being at the international leading level ； The low-pressure pump inside the tank has developed electromagnetic design methods, material insulation techniques, manufacturing processes, as well as inspection and testing methods; its key performance indicators have reached the advanced level of similar foreign products ； It is the first domestic and international test bench for LNG-medium low-temperature pumps and valves, designed and built independently, and operates based on an LNG plant. It features an advanced subcooling system that enables the recovery and reuse of LNG during testing, and can meet the requirements for testing the performance, cavitation, start-up and shutdown behavior, operation at minimum liquid levels, vibration, and noise of various low-temperature pumps, as well as other tests related to low-temperature equipment. Its key performance indicators have reached an advanced level comparable to those of international devices of the same kind; it has solved the testing challenges associated with using LNG as a medium in large-scale cryopumps, and it holds great significance for advancing the research, development, and testing of cryopump valves and other cryogenic equipment.