Superconducting sensor refrigeration device

By designing a superconducting sensor refrigeration device including a base, an outer cylinder, a copper lower inner shell for heat transfer, an inner cylinder, a neck tube, a tee joint, a sealing flange, an intermediate interlayer vacuum stop valve and a high-temperature superconducting sensor element, the problems of frequent liquid nitrogen supplementation, shaking influence and complex device structure in the prior art are solved, and a long-term and efficient superconducting state and system simplification are achieved.

CN119901101APending Publication Date: 2025-04-29BEIJING MECHANICAL EQUIP INST
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Patent Information

Application Number
CN202411857521.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-04-29

AI Technical Summary

Technical Problem

The existing high-temperature superconducting cooling device needs to be regularly replenished with liquid nitrogen during long-term operation. The shaking of liquid nitrogen in a mobile environment affects the state of the superconductor, and the device structure is complex and inconvenient to maintain, and its economy is poor.

Method used

A superconducting sensor refrigeration device is designed, including a base, an outer cylinder, a copper lower inner vessel for heat transfer, an inner cylinder, a neck tube, a tee joint, a sealing flange, an intermediate interlayer vacuum shut-off valve and a high-temperature superconducting sensor element. The superconducting state is achieved by reducing the pressure and cooling, and the volatility and shaking of liquid nitrogen is reduced by vacuum and sealing structure.

Benefits of technology

It realizes long-term refrigeration of high-temperature superconducting sensors, simplifies the system structure, reduces the volatility and shaking of liquid nitrogen, and improves the economics and maintenance convenience of the system.

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Patent Text Reader

Abstract

The invention discloses a superconducting sensor refrigerating device which comprises a base used for supporting. The lower base cylinder of the outer cylinder is connected with the base; the outer cylinder body is connected with the outer cylinder body lower base cylinder; a lower copper inner container for heat transfer is arranged in a lower base cylinder of the outer cylinder; the inner cylinder lower base is arranged at the upper end of the copper lower inner container for heat transfer; the inner barrel is arranged at the upper end of the inner barrel lower base; the neck tube is arranged at the upper end of the inner cylinder; the three-way joint is arranged at the upper end of the neck tube; the sealing flange is arranged at the upper end of the outer barrel; the middle interlayer vacuumizing stop valve is arranged on the sealing flange; and the high-temperature superconducting sensor element is arranged on the lower copper inner container for heat transfer. The refrigeration device has the advantages that only the refrigeration device needs to be depressurized and cooled before working, the high-temperature superconducting sensor can be refrigerated to be in a superconducting state, the influence of evaporation and shaking of a liquid refrigerant on the sensor is eliminated, the refrigeration time is long, and the system is simple.
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Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing and refrigeration devices, and in particular to a superconducting sensor refrigeration device. Background Art

[0002] At present, the traditional method of cooling high-temperature superconductors is to place the superconductor directly into a dewar flask filled with cooling media such as liquid nitrogen. During long-term operation, it is necessary to regularly replenish cooling media such as liquid nitrogen. For example, in a mobile working environment, the liquid nitrogen in the dewar flask will shake, which will affect the working state of the superconductor and accelerate the volatilization of liquid nitrogen, causing safety hazards of high-pressure gas. The dewar flask and other devices have complex structures and are inconvenient to maintain. There are also prominent problems such as poor economic efficiency during long-term operation.

[0003] In summary, there is at least one of the following technical problems:

[0004] There is a need to regularly replenish cooling media such as liquid nitrogen during long-term operation;

[0005] In a mobile working environment, liquid nitrogen shakes in the Dewar flask, which affects the working state of the superconductor and accelerates the volatilization of liquid nitrogen, causing safety hazards of high-pressure gas.

[0006] Dewar flasks and other devices have complex structures and are difficult to maintain.

[0007] The long-term operating economy is poor. Summary of the invention

[0008] The main purpose of the present invention is to provide a superconducting sensor refrigeration device and a method for using the same, so as to solve the technical problems in the prior art that cooling media such as liquid nitrogen need to be regularly replenished during long-term operation; in a mobile working environment, liquid nitrogen shakes in a Dewar flask, thereby affecting the working state of the superconductor and accelerating the volatilization of liquid nitrogen, causing safety hazards of high-pressure gas; and devices such as Dewar flasks have complex structures, are inconvenient to maintain, and have poor economic efficiency in long-term operation.

[0009] In order to achieve the above object, according to one aspect of the present invention, a superconducting sensor refrigeration device is provided, comprising:

[0010] A base, the base being used for support;

[0011] The outer cylinder lower base cylinder is connected to the base;

[0012] An outer cylinder, wherein the outer cylinder is connected to a base cylinder below the outer cylinder;

[0013] A copper lower liner for heat transfer, the copper lower liner for heat transfer is arranged in a base tube under the outer cylinder;

[0014] The inner cylinder lower base is arranged at the upper end of the copper lower liner for heat transfer;

[0015] An inner cylinder, wherein the inner cylinder is arranged at an upper end of a lower base of the inner cylinder;

[0016] A neck tube, the neck tube being arranged at the upper end of the inner cylinder;

[0017] A three-way connector, the three-way connector is arranged at the upper end of the neck tube;

[0018] A sealing flange, wherein the sealing flange is arranged at the upper end of the outer cylinder;

[0019] An intermediate interlayer vacuum stop valve, wherein the intermediate interlayer vacuum stop valve is arranged on a sealing flange;

[0020] A high temperature superconducting sensor element is provided on a copper lower liner for heat transfer.

[0021] Preferably, a DN16 quick-release clamp flange assembly and an intermediate sealing joint are provided between the three-way joint and the neck pipe.

[0022] Preferably, a liquid nitrogen to solid nitrogen vacuum shut-off valve is provided on the three-way joint.

[0023] Preferably, the sealing flange comprises a sealing upper flange and a sealing lower flange, the sealing upper flange and the sealing lower flange cooperate with each other, and the sealing lower flange and the sealing upper flange are directly provided with sealing O-rings.

[0024] Preferably, a vacuum aviation plug mounting seat is also provided on the sealing flange.

[0025] Preferably, it also includes a thermal radiation protection and heat insulation film, and the thermal radiation protection and heat insulation film is arranged in the cavity formed between the outer cylinder and the inner cylinder.

[0026] Preferably, the three-way joint is provided with a liquid nitrogen filling port and a liquid nitrogen to solid nitrogen vacuum extraction interface.

[0027] Preferably, the liquid nitrogen to solid nitrogen vacuum stop valve is provided with an intermediate interlayer vacuum port.

[0028] Preferably, the vacuum aviation plug mounting seat is provided with a vacuum aviation plug mounting seat opening.

[0029] Preferably, port b on the liquid nitrogen to solid nitrogen vacuum stop valve is used to vacuum the middle interlayer. When the middle interlayer vacuum stop valve is closed, liquid nitrogen is injected into port a, and then port a is closed, and then port d is connected to vacuum, reduce pressure and temperature. After the liquid nitrogen becomes solid nitrogen and port d is closed, the low temperature is transferred to the serial high-temperature superconducting sensor element through the serial heat transfer copper lower liner to achieve superconductivity.

[0030] The application of the technical solution of the present invention has the following technical effects:

[0031] The base is provided for support; the lower base tube of the outer cylinder is connected to the base; the outer cylinder is connected to the lower base tube of the outer cylinder; the copper lower liner for heat transfer is arranged in the lower base tube of the outer cylinder; the lower base of the inner cylinder is arranged at the upper end of the copper lower liner for heat transfer; the inner cylinder is arranged at the upper end of the lower base of the inner cylinder; the neck tube is arranged at the upper end of the inner cylinder; the three-way joint is arranged at the upper end of the neck tube; the sealing flange is arranged at the upper end of the outer cylinder; the intermediate interlayer vacuum stop valve is arranged on the sealing flange; the high-temperature superconducting sensor element is arranged on the copper lower liner for heat transfer. Before working, it is only necessary to reduce the pressure and temperature of the refrigeration device, which can realize the refrigeration of the high-temperature superconducting sensor to make it in a superconducting state and eliminate the influence of the evaporation and shaking of the liquid refrigerant on the sensor, with a long refrigeration time and a simple system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 A schematic structural diagram of a superconducting sensor refrigeration device according to the present invention is shown;

[0034] Figure 2 Shows Figure 1 Front view of the superconducting sensor refrigeration device.

[0035] The above drawings include the following reference numerals:

[0036] Three-way joint 1; DN16 quick-release clamp flange assembly 2; middle sealing joint 3; middle interlayer vacuum stop valve 4; sealing upper flange 5; sealing lower flange 6; outer cylinder 7; thermal radiation insulation film 8; inner cylinder 9; inner cylinder lower base 10; outer cylinder lower base 11; DN50 quick-release clamp flange assembly 12; copper lower liner for heat transfer 13; high-temperature superconducting sensor element 14; base 15; terminal 16; sealing O-ring 17; screw 18; vacuum aviation plug mounting seat 19; neck tube 20; liquid nitrogen to solid nitrogen vacuum stop valve 21. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] like Figure 1 to Figure 2As shown, the embodiment of the present invention provides a superconducting sensor refrigeration device, including: a base 15, the base 15 is used for support; an outer cylinder lower base 11 tube, the outer cylinder lower base 11 tube is connected to the base 15; an outer cylinder 7, the outer cylinder 7 is connected to the outer cylinder lower base 11 tube; a heat transfer copper lower liner 13, the heat transfer copper lower liner 13 is arranged in the outer cylinder lower base 11 tube; an inner cylinder lower base 10, the inner cylinder lower base 10 is arranged on the heat transfer copper lower liner 13 end; an inner cylinder 9, the inner cylinder 9 is arranged on the upper end of the lower base 10 of the inner cylinder; a neck tube 20, the neck tube 20 is arranged on the upper end of the inner cylinder 9; a three-way joint 1, the three-way joint 1 is arranged on the upper end of the neck tube 20; a sealing flange, the sealing flange is arranged on the upper end of the outer cylinder 7; an intermediate interlayer vacuum stop valve 4, the intermediate interlayer vacuum stop valve 4 is arranged on the sealing flange; a high-temperature superconducting sensor element 14, the high-temperature superconducting sensor element 14, is arranged on the copper lower liner 13 for heat transfer.

[0039] In this embodiment, the base 15 is used for support; the outer cylinder lower base 11 is connected to the base 15; the outer cylinder 7 is connected to the outer cylinder lower base 11; the heat transfer copper lower liner 13 is arranged in the outer cylinder lower base 11; the inner cylinder lower base 10 is arranged at the upper end of the heat transfer copper lower liner 13; the inner cylinder 9 is arranged at the upper end of the inner cylinder lower base 10; the neck tube 20 is arranged at the upper end of the inner cylinder 9; the three-way joint 1 is arranged at the upper end of the neck tube 20; a DN16 quick-release clamp flange assembly 2 and an intermediate sealing joint 3 are arranged between the three-way joint 1 and the neck tube 20. The three-way joint 1 is provided with a liquid nitrogen to solid nitrogen vacuum stop valve 21. The three-way joint is provided with a liquid nitrogen filling port and a liquid nitrogen to solid nitrogen vacuum interface. In this embodiment, the sealing flange is arranged at the upper end of the outer cylinder 7; the sealing flange includes a sealing upper flange 5 and a sealing lower flange 6, the sealing upper flange 5 and the sealing lower flange 6 cooperate with each other, and the sealing lower flange 6 and the sealing upper flange 5 are directly provided with a sealing O-ring 17. A vacuum aviation plug mounting seat 19 is also provided on the sealing flange. An intermediate interlayer vacuum stop valve 4 is arranged on the sealing flange; a high-temperature superconducting sensor element 14 is arranged on the copper lower liner 13 for heat transfer. It also includes a heat radiation insulation film 8, which is arranged in the cavity formed between the outer cylinder 7 and the inner cylinder 9. An intermediate interlayer vacuum port is provided on the intermediate interlayer vacuum stop valve 4. The vacuum aviation plug mounting seat 19 is provided with a vacuum aviation plug mounting seat 19 port. Port b is used to evacuate the middle interlayer. When the middle interlayer vacuum stop valve 4 is closed, liquid nitrogen is injected into port a, port a is closed, and port d is connected to evacuate, reduce pressure and temperature. When liquid nitrogen becomes solid nitrogen and port d is closed, the low temperature is transferred to the serial high-temperature superconducting sensor element 14 through the serial heat transfer copper lower liner 13 to achieve superconductivity.

[0040] Specifically, the present invention includes: a three-way joint 1, a DN16 quick-release clamp flange assembly 2, an intermediate sealing joint 3, an intermediate interlayer vacuum stop valve 4, a sealing upper flange 5, a sealing lower flange 6, an outer cylinder 7, a heat radiation insulation film 8, an inner cylinder 9, an inner cylinder lower base 10, an outer cylinder lower base 11, a DN50 quick-release clamp flange assembly 12, a copper lower liner for heat transfer 13, a high-temperature superconducting sensor element 14, a base 15, a terminal 16, a sealing O-ring 17, a screw 18, a vacuum aviation plug mounting seat 19, a neck tube 20, and a liquid nitrogen to solid nitrogen vacuum stop valve 21. Except for the serial number material of copper, the other main materials are all stainless steel 316L, and the welds are not drawn in the figure. Interface: a liquid nitrogen filling port, b intermediate interlayer vacuum port, c vacuum aviation plug mounting seat 19 port, d liquid nitrogen to solid nitrogen vacuum interface. When the superconducting sensor refrigeration device is working, the middle interlayer is evacuated at port b, the middle interlayer vacuum stop valve 4 is closed, liquid nitrogen is injected at port a, port a is closed, and port d is connected to evacuate and reduce pressure and temperature. After the liquid nitrogen becomes solid nitrogen, port d is closed, and the low temperature is transferred to the high-temperature superconducting sensor element 14 through the copper lower inner tank 13 for heat transfer at number 13 to achieve superconductivity. Before working, it is only necessary to reduce pressure and temperature of the refrigeration device, which can realize the refrigeration of the high-temperature superconducting sensor to put it in a superconducting state and eliminate the influence of evaporation and shaking of liquid refrigerant on the sensor. The refrigeration time is long and the system is simple.

[0041] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0042] The base 15 is provided for support; the outer cylinder lower base 11 is connected to the base 15; the outer cylinder 7 is connected to the outer cylinder lower base 11; the heat transfer copper lower liner 13 is arranged in the outer cylinder lower base 11; the inner cylinder lower base 10 is arranged at the upper end of the heat transfer copper lower liner 13; the inner cylinder 9 is arranged at the upper end of the inner cylinder lower base 10; the neck tube 20 is arranged at the upper end of the inner cylinder 9; the three-way joint 1 is arranged at the upper end of the neck tube 20; the sealing flange is arranged at the upper end of the outer cylinder 7; the intermediate interlayer vacuum stop valve 4 is arranged on the sealing flange; the high-temperature superconducting sensor element 14 is arranged on the heat transfer copper lower liner 13. Before working, it is only necessary to reduce the pressure and temperature of the refrigeration device, which can realize the refrigeration of the high-temperature superconducting sensor to make it in a superconducting state and eliminate the influence of the evaporation and shaking of the liquid refrigerant on the sensor, and the refrigeration time is long and the system is simple.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A superconducting sensor refrigeration device, characterized in that: include: A base, the base being used for support; The outer cylinder lower base cylinder is connected to the base; An outer cylinder, wherein the outer cylinder is connected to a base cylinder below the outer cylinder; A copper lower liner for heat transfer, the copper lower liner for heat transfer is arranged in a base tube under the outer cylinder; The inner cylinder lower base is arranged at the upper end of the copper lower liner for heat transfer; An inner cylinder, wherein the inner cylinder is arranged at an upper end of a lower base of the inner cylinder; A neck tube, the neck tube being arranged at the upper end of the inner cylinder; A three-way connector, the three-way connector is arranged at the upper end of the neck tube; A sealing flange, wherein the sealing flange is arranged at the upper end of the outer cylinder; An intermediate interlayer vacuum stop valve, wherein the intermediate interlayer vacuum stop valve is arranged on a sealing flange; A high temperature superconducting sensor element is provided on a copper lower liner for heat transfer.

2. The superconducting sensor refrigeration device according to claim 1, characterized in that: A DN16 quick-release clamp flange assembly and an intermediate sealing joint are provided between the three-way joint and the neck pipe.

3. The superconducting sensor refrigeration device according to claim 1, characterized in that: The three-way joint is provided with a liquid nitrogen to solid nitrogen vacuum stop valve.

4. The superconducting sensor refrigeration device according to claim 1, characterized in that: The sealing flange comprises a sealing upper flange and a sealing lower flange, the sealing upper flange and the sealing lower flange cooperate with each other, and the sealing lower flange and the sealing upper flange are directly provided with sealing O-rings.

5. The superconducting sensor refrigeration device according to claim 1, characterized in that: The sealing flange is also provided with a vacuum aviation plug mounting seat.

6. The superconducting sensor refrigeration device according to claim 1, characterized in that: It also includes a heat radiation protection and heat insulation film, which is arranged in a cavity formed between the outer cylinder and the inner cylinder.

7. The superconducting sensor refrigeration device according to claim 1, characterized in that: The three-way joint is provided with a liquid nitrogen filling port and a liquid nitrogen to solid nitrogen vacuum pumping interface.

8. The superconducting sensor refrigeration device according to claim 1, characterized in that: The liquid nitrogen to solid nitrogen vacuum stop valve is provided with an intermediate interlayer vacuum port.

9. The superconducting sensor refrigeration device according to claim 1, characterized in that: It also includes a vacuum aviation plug mounting seat, and the vacuum aviation plug mounting seat is provided with a vacuum aviation plug mounting seat opening.

10. The superconducting sensor refrigeration device according to claim 1, characterized in that: The b port of the intermediate interlayer vacuum stop valve is used to evacuate the intermediate interlayer. When the intermediate interlayer vacuum stop valve is closed, liquid nitrogen is injected into the a port, and then the a port is closed, and then the d port is connected to evacuate the pressure and temperature. After the liquid nitrogen becomes solid nitrogen and the d port is closed, the low temperature is transferred to the serial high-temperature superconducting sensor element through the serial heat transfer copper lower liner to achieve superconductivity.