A stable isotope superconducting separation device

Abstract

The utility model discloses a stable isotope superconducting separation device, comprising a fixed base, a vacuum system is arranged above the fixed base, the vacuum system is connected with a superconducting magnet through a direct current power supply, the vacuum system is used to provide a sealed separation environment, the superconducting magnet at the bottom of the vacuum system is installed and connected with the fixed base, a receiving system is also arranged in the vacuum system, the receiving system is used for the transmission and operation of electric power, two ends of the superconducting magnet form a magnetic field through a yoke, and are connected with a direct current power supply, the direct current power supply is connected in parallel with a superconducting switch, and the current of the superconducting coil is closed through the superconducting switch to form a stable closed magnetic field, a low-temperature cooling system is symmetrically installed on the superconducting magnet to cool the superconducting magnet and the superconducting switch, and the utility model has the advantages of adopting a combination design of multiple superconducting coils, no subsequent magnetic field shimming is required, a superconducting closed-loop operation mode is adopted, energy is saved, and the dependence on a high-precision power supply is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of superconducting separation, and more specifically, particularly relates to a stable isotope superconducting separation device. Background Art

[0002] At present, in the periodic table, isotopes of elements with the same atomic number, different atomic mass, basically the same chemical properties, and a half-life greater than 1015a are called stable isotopes! There are 274 stable isotopes discovered on Earth. The application of stable isotopes has covered all aspects of human activities, including nuclear power engineering, basic science, medicine, biology, earth science, agriculture, ecology, and new material production.

[0003] Among the various separation methods of stable isotopes, the main advantages of isotope electromagnetic separation are: good versatility, which can separate isotopes of almost all multi-nuclides; high flexibility, the separation object can be changed in a short time; large separation factor, the single-stage separation factor can reach hundreds or even higher; small raw material retention, which can operate on milligram-level materials; short equilibrium time, and the concentrated isotope product can be collected within a few hours of startup, and isotope electromagnetic separation is the only feasible method to obtain multiple isotopes such as Rb, K, Gd, Ca, Cu, Sb, Er, etc. Isotope electromagnetic separation uses the different rotation radii of ions with the same energy and different masses in a magnetic field to achieve isotope separation.

[0004] The basic process of stable isotope separation is to heat and vaporize the working material containing stable isotope elements, extract and accelerate it through an ion source, and then use the principle that elements of different masses have different deflection radii in the magnetic field to achieve deflection, mass separation and angular focusing using the magnetic field generated by a large magnet, so that multiple isotopes of the same element can be obtained at the same time.

[0005] The existing isotope electromagnetic separator uses an electromagnet coil plus a shimming yoke to form a specific field pattern to separate isotopes. The existing isotope electromagnetic separator magnet system has the following technical problems:

[0006] The power consumption of the electromagnet coil is relatively high. Currently, the power consumption of a four-chamber isotope separator is about 300kW. The electricity cost is one of the main costs of the separator operation.

[0007] After the magnet system is assembled, the magnetic field needs to be measured, and then iron of a specific shape is processed according to the results of the magnetic field measurement to fill the field type. Magnetic field measurement and filling is an iterative process, which is time-consuming and increases costs.

[0008] The electromagnet coil requires a high-precision power supply for continuous power supply. The stability of the magnetic field is affected by power grid fluctuations, which directly affects the separation purity of stable isotopes. Utility Model Content

[0009] In view of the deficiencies of the prior art, the utility model provides a stable isotope superconducting separation device to solve the problems raised in the above background technology.

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a stable isotope superconducting separation device, including a fixed base, a vacuum system is arranged above the fixed base, the vacuum system is connected to the superconducting magnet through a DC power supply, the vacuum system is used to provide a sealed separation environment, the superconducting magnet at the bottom of the vacuum system is installed and connected to the fixed base, a receiving system is also arranged in the vacuum system, the receiving system is used for the transmission and operation of electricity, the two ends of the superconducting magnet form a magnetic field through a yoke and are connected to the DC power supply, and a low-temperature cooling system is symmetrically installed on the superconducting magnet to cool the superconducting magnet and the superconducting switch.

[0011] As an optional solution of the present invention, the superconducting magnet is composed of a coil frame, an iron core, a first coil, a second coil and a third coil.

[0012] As an optional solution of the present invention, the cross-sections of the first coil and the third coil are circular, and the cross-section of the second coil is rectangular.

[0013] As an optional solution of the present invention, the low-temperature cooling system adopts a GM refrigerator.

[0014] As an optional solution of the present invention, an ion source system is also installed in the vacuum system, and the ion source system is used to process unstable circuits.

[0015] The utility model provides a stable isotope superconducting separation device, which has the following beneficial effects:

[0016] A superconducting coil combination of the first coil, the second coil and the third coil is used. After being excited to the specified magnetic field respectively, the current of the superconducting coil is closed through the superconducting switch to form a stable closed magnetic field. The superconducting switch enables the entire device to achieve a closed-loop operation mode, eliminating the influence of power grid fluctuations and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the supermagnetic conductor of the utility model;

[0019] Figure 3 This is a diagram showing the magnetic field requirements for isotope separation according to the present invention.

[0020] In the figure: 1. superconducting magnet; 2. cryogenic cooling system; 3. receiving system; 4. fixed base; 5. vacuum system; 6. ion source system; 7. coil frame; 8. first coil; 9. second coil; 10. third coil. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figures 1 to 3 The utility model provides a technical solution: a stable isotope superconducting separation device, including a fixed base 4, a vacuum system 5 is arranged above the fixed base 4, the vacuum system 5 is connected to the superconducting magnet 1 through a DC power supply, the vacuum system 5 is used to provide a sealed separation environment, the superconducting magnet 1 at the bottom of the vacuum system 5 is installed and connected to the fixed base 4, a receiving system 3 is also arranged in the vacuum system 5, the receiving system 3 is used for the transmission and operation of electricity, an ion source system 6 is also installed in the vacuum system 5, the ion source system 6 is used to process unstable circuits, and can be controlled by the vacuum environment, so as to operate safely and stably, and ensure stable current input into the superconducting magnet 1, the two ends of the superconducting magnet 1 form a magnetic field through a common magnetic yoke, and are connected to a DC power supply, and the DC power supply is connected in parallel with a superconducting switch.

[0025] The superconducting magnet 1 is composed of a coil frame 7, an iron core, a first coil 8, a second coil 9 and a third coil 10. The cross sections of the first coil 8 and the third coil 10 are circular, and the cross section of the second coil 9 is rectangular. A plurality of superconducting coils are combined, and after being excited to a specified magnetic field, the current of the superconducting coils is closed through a superconducting switch to form a stable closed magnetic field. The superconducting switch enables the entire device to achieve a closed-loop operation mode, eliminate the influence of power grid fluctuations, and save energy.

[0026] A low-temperature cooling system 2 is symmetrically installed on the superconducting magnet 1. The low-temperature cooling system 2 uses a GM refrigerator to cool the superconducting magnet 1 and the superconducting switch. The superconducting switch has an automatic temperature adjustment module, so that the inside of the superconducting switch is in a quench state. The current flows to the superconducting coil. After the first coil 8, the second coil 9 and the third coil 10 all reach the set current, the automatic temperature adjustment module of the superconducting switch is turned off, and the low-temperature cooling system 2 makes the superconducting switch enter the superconducting state, and the DC power supply is disconnected. At this time, the superconducting magnet 1 and the superconducting switch form a closed loop, and the current continues to exist in the closed loop to form a current closed loop.

[0027] The specific usage and function of this embodiment are as follows: the superconducting magnet 1 is cooled by the cryogenic cooling system 2 so that the superconducting coil group consisting of the first coil 8, the second coil 9 and the third coil 10 reaches a superconducting state, and the superconducting magnet 1 reaches a set working current and a set working field strength through the excitation of the DC power supply. When the DC power supply supplies power to the superconducting coil for excitation, the superconducting switch uses an automatic temperature adjustment module to put the interior in a quench state, and the current flows to the superconducting coil group. The current of the first coil 8, the second coil 9 and the third coil 10 is adjusted according to the magnetic field shape requirements until the field shape meets the magnetic field requirement diagram for separating isotopes. After the superconducting coil group reaches the set current, the automatic temperature adjustment module of the superconducting switch is turned off, so that the superconducting switch enters a superconducting state, and the DC power supply is disconnected. At this time, the superconducting coil and the superconducting switch form a closed loop, and the current continues to exist in the closed loop. The current of the superconducting coil is closed by the superconducting switch to form a stable closed magnetic field. The superconducting switch enables the entire device to achieve a closed-loop operation mode, eliminate the influence of power grid fluctuations, and save energy.

[0028] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A stable isotope superconducting separation device, characterized in that: The invention comprises a fixed base (4), a vacuum system (5) is arranged above the fixed base (4), the vacuum system (5) is connected to a superconducting magnet (1) via a DC power supply at the top and bottom, the vacuum system (5) is used to provide a sealed and separated environment, the superconducting magnet (1) at the bottom of the vacuum system (5) is installed and connected to the fixed base (4), a receiving system (3) is also arranged in the vacuum system (5), the receiving system (3) is used for the transmission and operation of electric power, a magnetic field is formed at both ends of the superconducting magnet (1) via a magnetic yoke, and the receiving system (3) is connected to a DC power supply, and a low-temperature cooling system (2) is symmetrically installed on the superconducting magnet (1) to cool the superconducting magnet (1) and the superconducting switch.

2. A stable isotope superconducting separation device according to claim 1, characterized in that: The superconducting magnet (1) is composed of a coil frame (7), an iron core, a first coil (8), a second coil (9) and a third coil (10).

3. A stable isotope superconducting separation device according to claim 2, characterized in that: The cross-sections of the first coil (8) and the third coil (10) are both circular, and the cross-section of the second coil (9) is rectangular.

4. The stable isotope superconducting separation device according to claim 1, characterized in that: The low temperature cooling system (2) adopts a GM refrigerator.

5. The stable isotope superconducting separation device according to claim 1, characterized in that: The superconducting switch has an automatic temperature adjustment module.

6. The stable isotope superconducting separation device according to claim 1, characterized in that: An ion source system (6) is also installed in the vacuum system (5), and the ion source system (6) is used to process unstable circuits.

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