Krypton gas preparation system

Abstract

The utility model relates to the technical field of rare gas preparation, in particular to a krypton gas preparation system which comprises an air source, a vacuum container, a krypton gas collection container and a temperature control assembly. A first-stage adsorption container, a second-stage adsorption container and a third-stage adsorption container are arranged in the vacuum container; the air source, the first-stage adsorption container, the second-stage adsorption container, the third-stage adsorption container and the krypton gas collecting container are sequentially connected, and the second-stage adsorption container and the third-stage adsorption container are used for further purifying krypton gas; the air source conveys air to the vacuum container; the krypton gas collecting container is used for collecting the prepared krypton gas; the temperature control assembly is arranged on one side of the first-stage adsorption container, one side of the second-stage adsorption container and one side of the third-stage adsorption container, and temperature control over the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container is achieved. According to the high-purity krypton gas preparation system, the problem that high-purity krypton gas is difficult to conveniently and stably prepare from air is effectively solved, and the system is simple in structure, convenient to operate, high in safety and convenient in preparation process.

Description

Technical Field

[0001] The utility model relates to the technical field of preparing rare gases, in particular to a krypton gas preparation system. Background Art

[0002] Krypton is a colorless, odorless, tasteless rare gas. Its chemical properties are extremely inactive, but it has a lot of uses in many industries, scientific research, and medical treatments.

[0003] At present, in the process of producing krypton gas, the system composition is complex, the operation is cumbersome, and the purity of the produced krypton gas is limited, making it difficult to produce high-purity krypton gas from the air conveniently and stably.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0005] The utility model provides a krypton gas preparation system, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A krypton gas preparation system comprises: an air source, a vacuum container, a krypton gas collection container and a temperature control component;

[0008] The vacuum container is provided with a primary adsorption container, a secondary adsorption container and a tertiary adsorption container; the air source, the primary adsorption container, the secondary adsorption container, the tertiary adsorption container and the krypton gas collection container are connected in sequence, and the secondary adsorption container and the tertiary adsorption container further purify the krypton gas;

[0009] The air source delivers air to the vacuum container; the krypton gas collecting container collects the produced krypton gas;

[0010] The temperature control component is arranged on one side of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container, and realizes temperature control of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

[0011] Furthermore, the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container are respectively filled with activated carbon.

[0012] Furthermore, the temperature control component includes a refrigerator and an electric heating wire; a thermal bridge is provided at one end of the refrigerator, and the thermal bridge is respectively connected to the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container;

[0013] The electric heating wires are respectively wound around the outer surfaces of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container, and heat the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

[0014] Furthermore, temperature sensors are installed on the outer surfaces of the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container respectively.

[0015] Furthermore, the gas inlets of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container are respectively connected to a helium source, and a stop valve is provided between the helium source and the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

[0016] Furthermore, a thermal switch is installed on the thermal bridge, and the thermal switch plays an on-off control role in the cold transport between the refrigerator and the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

[0017] Furthermore, the gas outlets of the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container are respectively provided with exhaust ports.

[0018] Through the technical solution of the utility model, the following technical effects can be achieved:

[0019] The system effectively solves the problem of difficulty in conveniently and stably producing high-purity krypton gas from the air, and the system has a simple structure, is easy to operate, has high safety, and a convenient production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the krypton gas production system;

[0022] Figure 2 It is a schematic diagram of the connection between the air source and the adsorption container;

[0023] Figure 3 It is a schematic diagram of the connection between the adsorption container and the krypton gas collection container;

[0024] Figure 4 It is a schematic diagram of the connection between the refrigerator and the adsorption container;

[0025] Figure numerals: 1. vacuum container; 10. exhaust port; 11. stop valve; 2. refrigerator; 21. thermal bridge; 22. thermal switch; 31. primary adsorption container; 32. secondary adsorption container; 33. tertiary adsorption container; 34. electric heating wire; 41. temperature sensor; 5. air source; 6. krypton gas collection container; 7. helium source. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] like Figures 1 to 4 As shown, a krypton gas preparation system comprises: an air source 5, a vacuum container 1, a krypton gas collecting container 6 and a temperature control component; a primary adsorption container 31, a secondary adsorption container 32 and a tertiary adsorption container 33 are arranged in the vacuum container 1; the air source 5, the primary adsorption container 31, the secondary adsorption container 32, the tertiary adsorption container 33 and the krypton gas collecting container 6 are connected in sequence, and the secondary adsorption container 32 and the tertiary adsorption container 33 further purify the krypton gas; the air source 5 conveys air to the vacuum container 1; the krypton gas collecting container 6 collects the prepared krypton gas; the temperature control component is arranged on one side of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33, and realizes temperature control of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33.

[0029] The technical solution of the utility model effectively solves the problem that it is difficult to conveniently and stably produce high-purity krypton gas from the air, and the system has a simple structure, is easy to operate, has high safety, and a convenient production process.

[0030] During the preparation process, the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33 purify the air source 5 to different degrees to ensure the purity of the krypton gas after extraction. The temperature control component controls the internal temperature of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33 to achieve heating and cooling, thereby promoting the preparation of krypton gas.

[0031] On the basis of the above embodiment, activated carbon is respectively installed inside the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33. The activated carbon has different adsorption capacities for krypton gas at different temperatures, and cooperates with the temperature control component to complete the production of krypton gas.

[0032] In the above embodiment, the temperature control component includes a refrigerator 2 and an electric heating wire 34; a heat bridge 21 is provided at one end of the refrigerator 2, and the heat bridge 21 is respectively connected to the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33; the electric heating wire 34 is respectively wound around the outer surface of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33, and heats the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33. Referring to Figures 2 and 3, the refrigerator 2 is provided to provide cold capacity, the cold head of the refrigerator 2 is connected to the heat bridge 21, so that the cold capacity of the refrigerator 2 is introduced into the heat bridge 21 and transmitted to the adsorption container, and the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33 are cooled respectively, and the electric heating wire 34 is respectively wound around the outer surface of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33, and heats the adsorption container, and the process of preparing krypton from air is completed by utilizing the difference in the adsorption capacity of activated carbon inside the adsorption container for krypton at different temperatures.

[0033] As a preferred embodiment of the above, Figures 1 to 3 As shown, temperature sensors 41 are installed on the outer surfaces of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33. The temperature sensors 41 monitor the temperatures of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33 respectively, so as to monitor the temperature in the adsorption container in real time during the preparation process.

[0034] In order to better realize on-off control, Figure 1 As shown, the gas inlets of the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33 are respectively connected to the helium source 7, and a stop valve 11 is respectively provided between the helium source 7 and the primary adsorption container 31, the secondary adsorption container 32 and the tertiary adsorption container 33. Helium, as an inert gas, is stable in nature and cannot be combined with other gases. It can discharge the krypton gas in the adsorption container after production and collect it in the krypton gas collection container 6. Specifically, during production, the stop valve 11 is closed to cut off the communication between the helium source 7 and the adsorption container. After the production is completed, the stop valve 11 is opened to discharge the krypton gas inside the adsorption container.

[0035] During the implementation, a thermal switch 22 is installed on the thermal bridge 21, and the thermal switch 22 plays an on-off control role in the cold transport between the refrigerator 2 and the first-stage adsorption container 31, the second-stage adsorption container 32 and the third-stage adsorption container 33. Figure 4As shown, during the temperature control process, the on and off of the cold transport between the refrigerator 2 and the primary adsorption container 31 , the secondary adsorption container 32 and the tertiary adsorption container 33 is achieved by controlling the opening and closing of the thermal switch 22 .

[0036] As a preferred embodiment of the above embodiment, the gas outlets of the first-stage adsorption container 31, the second-stage adsorption container 32 and the third-stage adsorption container 33 are respectively provided with exhaust ports 10. The exhaust ports can exhaust the remaining air and can also be used as an outlet for collecting helium to achieve cleaning and maintenance of the interior of the adsorption container.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A krypton gas production system, characterized in that: include: Air source, vacuum container, krypton gas collection container and temperature control assembly; The vacuum container is provided with a primary adsorption container, a secondary adsorption container and a tertiary adsorption container; the air source, the primary adsorption container, the secondary adsorption container, the tertiary adsorption container and the krypton gas collection container are connected in sequence, and the secondary adsorption container and the tertiary adsorption container further purify the krypton gas; The air source delivers air to the vacuum container; the krypton gas collecting container collects the produced krypton gas; The temperature control component is arranged on one side of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container, and realizes temperature control of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

2. The krypton gas production system according to claim 1, characterized in that: The first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container are respectively filled with activated carbon.

3. The krypton gas production system according to claim 2, characterized in that: The temperature control component includes a refrigerator and an electric heating wire; a thermal bridge is provided at one end of the refrigerator, and the thermal bridge is respectively connected to the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container; The electric heating wires are respectively wound around the outer surfaces of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container, and heat the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

4. The krypton gas production system according to claim 3, characterized in that: Temperature sensors are installed on the outer surfaces of the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container respectively.

5. The krypton gas production system according to claim 4, characterized in that: The gas inlets of the primary adsorption container, the secondary adsorption container and the tertiary adsorption container are respectively connected to a helium source, and a stop valve is provided between the helium source and the primary adsorption container, the secondary adsorption container and the tertiary adsorption container.

6. The krypton gas production system according to claim 3, characterized in that: A thermal switch is installed on the thermal bridge, and the thermal switch plays an on-off control role in the cold transport between the refrigerator and the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container.

7. The krypton gas production system according to any one of claims 1 to 6, characterized in that: The gas outlets of the first-stage adsorption container, the second-stage adsorption container and the third-stage adsorption container are respectively provided with exhaust ports.

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