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CAO Huyin, JIANG Hao, WANG Qiang, LI Jihu, ZENG Qunfeng. Implementation and Design of Vacuum Test Platform of the Vacuum Pipeline Based on the Principle of Temperature Field[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2022, 42(10): 726-730. DOI: 10.13922/j.cnki.cjvst.202204005
Citation: CAO Huyin, JIANG Hao, WANG Qiang, LI Jihu, ZENG Qunfeng. Implementation and Design of Vacuum Test Platform of the Vacuum Pipeline Based on the Principle of Temperature Field[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2022, 42(10): 726-730. DOI: 10.13922/j.cnki.cjvst.202204005
shu

Implementation and Design of Vacuum Test Platform of the Vacuum Pipeline Based on the Principle of Temperature Field

  • 1. Yulin Special Equipment Inspection and Testing Institute, Yulin 719000, China;

  • 2. Xi'an Jiaotong University Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an 710049, China

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  • Received Date: April 07, 2022
  • Available Online: September 08, 2023
    Graphical Abstract
    • Abstract
  • In this paper,a method of ultra-low temperature vacuum pipeline was proposed to measure the vacuum degree of liquefied natural gas(LNG)low temperature vacuum pipeline without the reserved detection port based on the temperature field principle of the vacuum degree test method.According to the temperature field principle,the vacuum pipeline system was designed and fabricated.The low-temperature vacuum pipeline system includes the inner tube,a heat-insulation layer,the outer tube,the temperature sensors,and the data acquisition system.The inner tube was filled with cryogenic liquid,and the inner layer and outer layer of the heat insulation layer were made of glass fiber paper and aluminum foil,respectively.The outer tube has a vacuum port and a vacuum gauge connection port,and a thermometer measures the temperature of the outer tube.Then the influence of pressure on the temperature of the low-temperature vacuum pipeline was simulated.Finally,the simulation results were verified by the vacuum system,and the experimental results achieved the expected goals.
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    • References (16)
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