Structure of coaxial pulse tube refrigerating machine cooling high-temperature superconducting filter and manufacturing method
A pulse tube refrigerator and high-temperature superconducting technology, which is applied in the direction of refrigerators, waveguide devices, refrigeration and liquefaction, etc., can solve the problems of high-temperature superconducting filter working output signal influence, reliability and working life affecting working performance, etc. , to achieve the effect of compact structure, long working life and high efficiency
Active Publication Date: 2015-04-22
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
At present, most domestic and foreign high-temperature superconducting filter products for mobile base stations use Stirling refrigerators as low-temperature cold sources, but because moving parts such as the cold head ejector of Stirling refrigerators will bring mechanical vibration and electromagnetic interference signals, It has a great influence on the working output signal of the high temperature superconducting filter
Moreover, the reliability and working life of the Stirling refrigerator are also a major bottleneck affecting its performance.
Method used
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[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.
[0036] like figure 2 As shown, the coaxial pulse tube refrigerator is composed of structural components such as compressor 1, connecting pipe 2, regenerator 3, pulse tube 4, phase modulation mechanism 5, gas storage 6, hot end heat exchanger 7, cold head 27, etc. The pulse tube 4 is concentrically inserted into the regenerator 3, and the compressor 1 is connected to the hot-end heat exchanger 7 of the coaxial pulse tube refrigerator through the connecting pipe 2; Pulse tube 4, hot end heat exchanger 7, phase adjustment mechanism 5 and gas storage 6 reciprocate inside, through the phase adjustment effect of phase adjustment mechanism 5 and gas storage 6, cold energy is generated at cold head 27; the structure of cold head 27 is as follows image 3 As shown, there is a central hole 38 on its left side, and t...
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The invention discloses a structure of a coaxial pulse tube refrigerator for cooling a high-temperature superconductivity filter and the manufacturing method thereof. The structure is composed of a hot end heat exchanger, a cold head, a heat conducting belt, a cold plate, a high-reflection cold shield, an anti-radiation screen, an H-shaped Dewar flask, a Dewar cover, a thin framework structure and an equipment box. The pulse tube refrigerator is high in reliability and long in service life, the cold end is free of moving parts, and the influence of moving vibration of the cold end on signal transmission of the high-temperature superconductivity filter is eliminated. According to the structure of the coaxial pulse tube refrigerator for cooling the high-temperature superconductivity filter and the manufacturing method thereof, the advantages of the coaxial pulse tube refrigerator of being easy to couple and compact in overall structure are fully utilized, and a stable, reliable, low-noise and low-vibration low-temperature cold source can be provided for the high-temperature superconductivity filter. The structure of the coaxial pulse tube refrigerator for cooling the high-temperature superconductivity filter and the manufacturing method thereof have positive significance for further application and promotion of the high-temperature superconductivity filter and practicability of the coaxial pulse tube refrigerator in fields such as mobile communication.
Description
technical field [0001] The technical field of the present invention relates to the fields of refrigeration and cryogenic engineering, superconducting engineering and communication engineering, and relates to a pulse tube refrigerator and a high temperature superconducting filter, in particular to a coaxial pulse tube refrigerator cooling a high temperature superconducting filter structure and manufacturing method. Background technique [0002] As one of the cutting-edge technologies that have developed rapidly in recent years, high-temperature superconducting technology has many advantages in the field of mobile communications, especially the high-temperature superconducting filter made of high-temperature superconducting materials. Compared with conventional filters, its pass The band loss is small, the stop band suppression is large, the side band is steep, and it can be made into a very narrow band filter, small in size and light in weight. Applied in the field of civil ...
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IPC IPC(8): F25B9/14H01P1/20
CPCF25B9/145H01P1/20
Inventor 党海政宋宇尧
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI