The invention is suitable for the technical field of vacuum rail transit, and provides a chemical method for enabling a closed system to obtain approximate vacuum, which comprises the following steps of 1, generating a closed system which requires a container to bear only 0.01 atmospheric pressure in the system, 2, placing enough anhydrous calcium chloride in the container to enable the water vapor in the system to be completely absorbed. What can be calculated through experiments is that about 3 kg of magnesium needs to be combusted and 0.00025 kg of anhydrous calcium chloride needs to be combusted for removing gas such as nitrogen, oxygen and carbon dioxide in one cubic meter of air, 1.1839 kg of important raw material ammonia capable of collecting nitrogen fertilizer can be collected, and the consumption of metal magnesium is reduced by means of a method for enabling a closed system to obtain approximately vacuum high efficiency through chemistry. In other words, about 2.51 kg of magnesium needs to be combusted to remove nitrogen, oxygen, carbon dioxide and other gases in one cubic meter of air, 0.45 kg of magnesium needs to be combusted, but 0.3375 kg of water vapor is generated, and 0.3469 kg of anhydrous calcium chloride needs to be consumed.

    本发明适用于真空轨道交通技术领域,提供了一种化学使密闭系统获得近似真空的方法,包括以下步骤:步骤一:生成一个密闭系统,要求容器能承受系统内只有0.01个大气压的负压,步骤二:在内部放置足够的无水氯化钙,让其完全吸收系统内的水蒸气。通过实验可以算出一立方米的空气除氮气、氧气、二氧化碳等气体需燃烧镁约3千克和除水蒸气需无水氯化钙0.00025千克,可以收集到氮肥的重要原料氨1.1839千克,通过化学使密闭系统获得近似真空高效的方法利用氢气代替减少了金属镁的耗量,即除一立方米的空气的氮气、氧气、二氧化碳等气体需燃烧镁约2.51千克,减少了0.45千克,但产生的除水蒸气却多了0.3375千克,需要多消耗无水氯化钙0.3469千克。


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    Titel :

    Chemical method for enabling closed system to obtain approximate vacuum


    Weitere Titelangaben:

    一种化学使密闭系统获得近似真空的方法


    Beteiligte:
    LU SHENGHONG (Autor:in)

    Erscheinungsdatum :

    11.06.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B61B RAILWAY SYSTEMS , Eisenbahnanlagen