Integrated liquid nitrogen purification device
A purification device and integrated technology, applied in nitrogen purification/separation, nitrogen compounds, inorganic chemistry, etc., can solve the problems of troublesome material ordering and management, high production cost, etc., achieve convenient material ordering and management, beautiful structure, and improve automation Effect
Pending Publication Date: 2020-11-03
海尔生物医疗科技(成都)有限公司
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Problems solved by technology
[0004] Based on the above technical problems, the present invention provides an integrated liquid nitrogen purification device, which solves the problem that when the existing liquid nitrogen purification device prepares sterile liquid nitrogen, it needs to prepare sterile nitrogen and liquid nitrogen as consumables. The problem of troublesome management and high preparation cost
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[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.
[0035] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importan...
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The invention relates to a liquid nitrogen purification device, and discloses an integrated liquid nitrogen purification device, which comprises: a composite container, which comprises a cold trap, wherein an inner cavity of the cold trap is provided with an inner heat exchanger and an inner container; a liquid nitrogen preparation assembly which comprises a heating assembly, a filter, an inner heat exchanger and an inner container which are sequentially connected through a pipeline; a liquid nitrogen condensation which assembly comprises a cold trap and a vacuum pump that are sequentially connected through a pipeline; and a liquid extracting cabin which is opened and closed through a cabin door, and a liquid discharging pipe connected with the inner container is arranged in the liquid taking cabin, wherein the liquid nitrogen preparation assembly and the liquid nitrogen condensation assembly are each provided with a liquid nitrogen connector capable of being connected with liquid nitrogen storage equipment. The invention solves the problems that when an existing liquid nitrogen purification device is used for preparing sterile liquid nitrogen, two raw materials including sterile nitrogen and liquid nitrogen need to be prepared to serve as consumables, material ordering and management are troublesome, and the preparation cost is high.
Description
technical field [0001] The invention relates to a liquid nitrogen purification device, in particular to an integrated liquid nitrogen purification device. Background technique [0002] Liquid nitrogen refers to nitrogen in a liquid state. Due to its chemical inertness, it can directly contact biological tissues and freeze immediately without destroying biological activity. Therefore, liquid nitrogen is used as a refrigerant to rapidly freeze biological tissues to avoid damage to biological tissues. [0003] Since liquid nitrogen is often used in the fields of biological experiments, pharmaceuticals, and food, in order to avoid contamination of liquid nitrogen, the sterility requirements of liquid nitrogen are high in such environments, and sterile liquid nitrogen is often required to be prepared. The existing liquid nitrogen purification device (also known as sterile liquid nitrogen machine), the working principle of its preparation of sterile liquid nitrogen is usually the...
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Login to View More IPC IPC(8): C01B21/04
CPCC01B21/0433
Inventor唐文明叶敏
Owner海尔生物医疗科技(成都)有限公司