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    • 6. 发明授权
    • Preserving system
    • 保存系统
    • US07076960B2
    • 2006-07-18
    • US10602515
    • 2003-06-24
    • Kazuo Takemasa
    • Kazuo Takemasa
    • F25B9/00
    • F17C3/085F17C3/10F17C13/021F17C13/025F17C2205/0326F17C2205/0332F17C2221/014F17C2223/0161F17C2223/033F17C2250/0408F17C2250/043F17C2270/02F25B9/14F25B2500/06F25D3/102F25D16/00
    • To provide a preserving system capable of re-using vaporized nitrogen, and moreover, capable of always cooling the specimens at a predetermined temperature or lower. The preserving system comprising a cylinder and the preserving vessel which is supplied with liquid nitrogen from this cylinder, is provided with a Stirling refrigerator and a condensing chamber arranged outside of said preserving vessel, and the gas phase part of this condensing chamber is made to communicate with that of said preserving vessel and also the liquid phase part is made to communicate with that of said preserving vessel, and further the cooling part of said Stirling refrigerator is arranged in said condensing chamber, therefore, the nitrogen vaporized in the preserving vessel is cooled by the cooling part of the Stirling refrigerator in the condensing chamber and liquefied again, and so this liquid nitrogen can be reused for cooling the preserving vessel. Moreover, since the preserving vessel can be cooled by the liquid nitrogen when performing maintenance on the Stirling refrigerator, the specimens in the preserving vessel can always be cooled at a predetermined temperature or lower.
    • 为了提供能够重新使用蒸发的氮气的保存系统,此外,能够在预定温度或更低的温度下始终冷却样品。 该保存系统包括一个气缸和从该气缸供给液氮的保存容器,设置有一个布置在所述保存容器外部的斯特林制冷机和一个冷凝室,该冷凝室的气相部分被连通 与所述保存容器的液相部分相通,并使液相部分与所述保存容器连通,并且所述斯特林制冷机的冷却部分进一步设置在所述冷凝室中,因此将保存容器中蒸发的氮气冷却 通过冷凝室中的斯特林冰箱的冷却部分再次液化,因此这种液氮可以重新用于冷却保存容器。 此外,由于当在斯特林制冷机上进行维护时保存容器可以被液氮冷却,所以保存容器中的试样可以总是在预定温度或更低温度下冷却。
    • 7. 发明授权
    • Refrigerant composition and refrigerating apparatus
    • 制冷剂组成及制冷装置
    • US06363741B2
    • 2002-04-02
    • US09824406
    • 2001-04-02
    • Kazuo Takemasa
    • Kazuo Takemasa
    • C09K504
    • C09K5/045C09K2205/12
    • A refrigerant composition comprising difluoromethane (R-32), pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and n-pentane, preferably prepared by mixing n-pentane preliminarily in R-134a, and mixing into a refrigerant of R-32 and R-125, with the n-pentane contained in a range of 0.1 wt. % to 14 wt. % of the total weight, and a refrigerating apparatus employing the refrigerant composition composed of above. It is an object of the present invention to develop a nonflammable refrigerant composition capable of using refrigerating machine oil such as mineral oil and alkyl benzene which is used in refrigerating apparatus, none in risk of destroying the ozone layer, excellent in cooling performance, superior in lubricating performance, and outstanding in heat resistance.
    • 包含二氟甲烷(R-32),五氟乙烷(R-1​​25),1,1,1,2-四氟乙烷(R-1​​34a)和正戊烷的制冷剂组合物,优选通过将R-134a预先混合正戊烷 并混合成R-32和R-125的制冷剂,正戊烷的含量为0.1重量%。 %至14重量% 总重量的百分比,以及使用由上述构成的制冷剂组成的制冷装置。 本发明的目的是开发一种能够使用制冷装置中使用的诸如矿物油和烷基苯的冷冻机油的不可燃制冷剂组合物,不会破坏臭氧层的风险,冷却性能优异, 润滑性能好,耐热性优异。