CN104180552A - U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method - Google Patents
U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method Download PDFInfo
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- CN104180552A CN104180552A CN201410403305.7A CN201410403305A CN104180552A CN 104180552 A CN104180552 A CN 104180552A CN 201410403305 A CN201410403305 A CN 201410403305A CN 104180552 A CN104180552 A CN 104180552A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
Abstract
The invention discloses a U-shaped pulse tube refrigerating machine structure for cooling a high temperature superconducting filter and a manufacture method. The structure comprises a U-shaped refrigerating head, a hot end heat dissipation support platform, a cylinder dewar, a high reflecting screen, a radiation-proof screen, a thin frame structure and an equipment box. The pulse tube refrigerating machine is highly reliable and long in service life and uses no moving parts at the cold end, so as to avoid influence of vibration caused by the cold end movement on the signal transmission of the high temperature superconducting filter. According to the invention, as the structural characteristics of the U-shaped pulse tube refrigerating machine are fully utilized, good convenience is brought to the coupling of the refrigerating machine and the high temperature superconducting filter, and a stable, reliable, low-noise and low-vibration low temperature cold source is provided for the high temperature superconducting filter; through the structure, great significance is brought to the further popularization and application of the high temperature superconducting filter and the practicability of the U-shaped pulse tube refrigerating machine in fields including mobile communication, and the like.
Description
Technical field
Technical field of the present invention relates to refrigeration and cryogenic engineering field, superconduction engineering field and communication engineering field, relate to pulse tube refrigerating machine and high temperature superconduction wave filter, particularly a kind of structure and manufacture method of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter.
Background technology
High temperature superconductor technology is as one of swift and violent cutting edge technology of development in recent years, be applied to moving communicating field, there are many advantages, the high temperature superconduction wave filter that particularly high temperature superconducting materia is made, compare with conventional wave filter, its passband loss is little, and stopband suppresses greatly, sideband is precipitous, can be made into narrow-band filter, volume is little, quality is light.Be applied to civilian moving communicating field, high temperature superconduction wave filter can significantly improve mobile base station selective, sensitivity and information transfer rate, raising speech quality, increase call capacity, expand base station area coverage, strengthen base station antijamming capability, reduce mobile phone transmission power.Along with the maturation of high temperature superconduction wave filter theory and manufacturing process, and the fast development in the world of mobile communication industry, high temperature superconduction wave filter is expected to bring revolutionary variation for global mobile communication field.
Mobile base station is 60～80K by high temperature superconduction wave filter best effort environment temperature, at present at this warm area, small-sized low temperature mechanical refrigerator is as low-temperature receiver, can well meet the requirement of high temperature superconduction wave filter cold, consider the external working environment of high temperature superconduction wave filter, except cold requires, also need refrigeration machine to there is the features such as stable, efficient, low interference, long-life, small size, light weight.At present, mobile base station adopts sterlin refrigerator as low temperature cold source with high temperature superconduction wave filter product mostly both at home and abroad, but because the moving components such as sterlin refrigerator cold head end displacer can bring mechanical oscillation and electromagnetic interference signal, the work output signal of high temperature superconduction wave filter is had to considerable influence.And the reliability of sterlin refrigerator and working life are also larger bottlenecks that affects its service behaviour.
The pulse tube refrigerating machine coming into operation after the eighties in 20th century is to regenerating type low-temperature refrigerator significant innovation, compare with other small-sized regenerating type low-temperature refrigerators especially sterlin refrigerator, it has cancelled cold junction displacer, phase adjusted is completed by passive phase modulating mechanism, therefore at cold junction movement-less part, the low vibration of cold junction, low interference have been realized and without wearing and tearing, and through the improvement on phase modulation frame mode, at some typical warm areas, as 60～80K warm area, its efficiency has reached the peak in regenerating type low-temperature refrigerator.Therefore, pulse tube refrigerating machine has the plurality of advantages such as cold is large, efficiency is high, the vibration of cold junction machinery-free, reliability is high, life expectancy is long.
Pulse tube refrigerating machine has three kinds of typical arrangements according to pulse tube and regenerator relative position different, and as shown in Figure 1, wherein (a) is linear pattern, is (b) U-shaped, is (c) coaxial type.The pulse tube refrigerating machine of three kinds of patterns forms by primary structures such as compressor 1, connecting leg 2, regenerator 3, pulse tube 4, phase modulation structure 5 and air reservoirs 6.In linear pattern layout, pulse tube 4 and regenerator 3 are in straight line, and in U-shaped layout, pulse tube 4 and regenerator 3 are parallel to each other, and in coaxial type layout, pulse tube 4 inserts regenerator 3 with one heart.In three kinds of patterns, coaxial type structure is the compactest, but because refrigerating device inner gas working medium need to be rolled over turnback at cold junction, can cause larger drag losses and flow perturbation, and because the temperature of regenerator 3 and pulse tube 4 is not mated, inevitably bring loss of refrigeration capacity; During linear pattern is arranged, air-flow does not need to turn back, can reduce to greatest extent gas flow resistance, most effective in three kinds of arrangements, but its cold junction is between regenerator 3 and pulse tube 4, and cold finger integral body is longer, make cold extract inconvenience, with device coupling difficulty, it is the further key factor of application of restriction linear pattern.
As seen from Figure 1, in three kinds of exemplary configurations modes of vascular refrigerator, U-shaped structure is the same with coaxial type structure, and cold junction is in one end, with the coupling of device more for convenience, with respect to linear pattern, arrange comparatively compactness of speech structure.And regenerator does not directly contact with pulse tube, avoided regenerator and pulse tube Temperature Distribution in coaxial type structure not to mate the loss of refrigeration capacity bringing.Therefore the refrigerating efficiency of U-shaped structure relatively will be higher than coaxial type, and more compact and more convenient and device is coupled compared with linear pattern arrangement, thereby can make full use of the advantage of U-shaped pulse tube refrigerating machine, makes its cooling for high temperature superconduction wave filter.
Summary of the invention
Feature in view of high temperature superconduction wave filter and U-shaped pulse tube refrigerating machine, the present invention proposes a kind of structure and manufacture method of utilizing U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter, object is, make full use of that U-shaped pulse tube refrigerating machine is high in 60～80K warm area efficiency, cold is large, be easy to the advantages such as device coupling, for high temperature superconduction wave filter provides reliable and stable low temperature cold source.
The structure of the U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter of inventing as shown in Figure 2, U-shaped cold head 8, hot-side heat dissipation support platform 7, cylinder Dewar 9, high radiation shield 11, protective shield of radiation 12, thin frame structure 13, equipment box 21, consist of, its feature is as follows:
The cold finger of U-shaped pulse tube refrigerating machine is comprised of regenerator 3, pulse tube 4, phase modulating mechanism 5, air reservoir 6, hot-side heat dissipation support platform 7, U-shaped cold head 8, and compressor 1 forms U-shaped pulse tube refrigerating machine by connecting leg 2 and cold finger coupling.Wherein hot-side heat dissipation support platform 7 becomes one the regenerator hot-side heat dissipation of U-shaped pulse tube refrigerating machine and pulse tube hot-side heat dissipation, and is coupled with cylinder Dewar 9, supports and forms vacuum chamber; High temperature superconduction wave filter 10 is placed and is fixed on U-shaped cold head 8 working faces, to be coupled with U-shaped pulse tube refrigerating machine.At U-shaped cold head 8 upper surfaces, high radiation shield 11 and protective shield of radiation 12 are set, high temperature superconduction wave filter 10 and U-shaped cold head 8 are covered in wherein, thin frame structure 13 is installed in hot-side heat dissipation support platform 7, thin frame structure 13 outsides are wrapped with Multilayer radiation-proof material, regenerator 3 and pulse tube 4 are wrapped with respectively Multilayer radiation-proof material around, and U-shaped pulse tube refrigerating machine cold finger is covered in wherein.Cylinder Dewar 9 lower ends and hot-side heat dissipation support platform 7 upper ends fit, and utilize screw to be fastenedly connected, and sealing ring seals.On cylinder Dewar 9 sidewalls, vacuum valve 14 is installed, during operation, is utilized vaccum-pumping equipment to pass through vacuum valve 14 and keep vacuum 5.0 * 10
-6below Pa.High temperature superconduction wave filter 10 connects by coaxial cable 15 the sealed electrical connector 16 being positioned in hot-side heat dissipation support platform 7 signal is passed to outside vacuum chamber, and by cable 17, signal is transferred to automatically controlled and signal pickup assembly 18.Automatically controlled and signal pickup assembly 18 carries out input and the control of power supply signal by 19 pairs of compressors of holding wire 1, and cable 17 and holding wire 19 are fixing by wire harness apparatus 20.Integral device is positioned in equipment box 21.Automatically controlled and signal pickup assembly 18 is positioned at the electric control chamber right side of equipment box 21 baffle plate 22 belows, in electric control chamber arranged outside, has outside power supply and signaling interface.Above baffle plate 22, place U-shaped pulse tube refrigerating machine, the power house between baffle plate 22 and epipleural is placed compressor 1, utilizes compressor bracket 24 to be fixed.Compressor 1 lower end is positioned over cooling platform 25 upper ends, and cooling platform 25 lower ends are connected with air reservoir connector 26, and air reservoir connector 26 lower ends connect air reservoir 6, and are positioned over baffle plate 22, utilize fixed head 23 to be fixed.Air reservoir connector 26 side outside paper has perforate, facilitates U-shaped pulse tube refrigerating machine hot junction connecting leg 27 to pass through.Hot junction connecting leg 27 is walked around compressor 1, through 26 perforates of air reservoir connector, is connected with phase modulation structure 5 and air reservoir 6.Equipment box 21 left side plates are provided with fan 28 and fence 29 respectively, and during equipment operation, fan 28 is opened, and forms air flow passage, for it dispels the heat in hot-side heat dissipation support platform 7 positions.
The manufacture method of the U-shaped pulse tube refrigerating machine cooling high-temperature superconducting filter construction of inventing is as follows:
U-shaped cold head 8 adopts the good high-purity oxygen-free copper of heat conductivility to be made, and regenerator end cold head 30, pulse pipe end cold head 31 and slit post 32, consists of.Regenerator end cold head 30 lower ends utilize the slit of the wide 0.02～0.15mm of line cutting slow wire feeding processing 30-60 bar, form slit pore 34, facilitate regenerator 3 to insert, and have blind hole to facilitate slit post 32 left ends to insert on regenerator end cold head 30 right sides; In pulse pipe end cold head 31 lower ends, adopt line cutting slow wire feeding processing slit to form slit pore 35, facilitate pulse tube 4 to insert.In pulse pipe end cold head 32 left side car blind holes, facilitate slit post 32 to insert.Slit post 32 is one section of cylindrical ladder section part, adopts respectively line cutting slow wire feeding processing slit 36 at two ends, left and right.During installation, slit post 32 left ends insert regenerator end cold head 30, and right-hand member inserts pulse pipe end cold head 31, adopt the clean brazing mode of vacuum that three parts seal weldings are integrated at 33 places.The U-shaped cold head 8 top surface plane degree of finish turning are below 0.10mm, and surface is coated with low temperature heat-conducting silicone grease, fits tightly with high temperature superconduction wave filter 10.High radiation shield 11 and protective shield of radiation 12 are installed in U-shaped cold head 8 upper surfaces, high temperature superconduction wave filter 10 and U-shaped cold head 8 are covered in wherein, adopt highly reflective material to make.High radiation shield 11 cross sections are several character form structures, and two sidetracking apertures 37, facilitate passing through of coaxial cable 15, wall thickness 0.5～2.0mm.The wall thickness 0.2～1.0mm of protective shield of radiation 12.At high radiation shield 11 limit, lower end platforms and the protective shield of radiation 12 upper end Bian Tai uniform through hole 38 of having got on the bus.High radiation shield 11 and protective shield of radiation 12 inner surface blackening process, outer surface sanding and polishing.Utilize uniform through hole 38 use screw fastenings to be connected in U-shaped cold head 8 upper surfaces.Thin frame structure 13 is the thin bar construction of bending of expoxy glass steel fibre by 3～10 root timber material, is installed on hot-side heat dissipation support platform 7, and outside is wrapped with Multilayer radiation-proof material, and U-shaped pulse tube refrigerating machine cold finger and high temperature superconduction wave filter 10 are covered in wherein.The whole rounded slab construction of hot-side heat dissipation support platform 7, lower end car boss 39, connecting leg 2 inserts boss 39 center holes, and the other end connects compressor 1, and hot junction connecting leg 27 inserts right side, lower end corresponding circle hole, and the other end connects phase modulation structure 5 and air reservoir 6.Hot-side heat dissipation support platform 7 upper end car boss 40.In hot-side heat dissipation support platform 7 upper ends, utilize respectively line cutting slow wire feeding processing slit pore 41 and slit pore 42, regenerator 3 and pulse tube 4 insert respectively regenerator end slit pore 41 and pulse pipe end slit pore 42.The uniform small boss 43 of hot-side heat dissipation support platform 7 upper surface car, is connected and fixed thin frame structure 13.The symmetrical sealed electrical connector 16 of installing of hot-side heat dissipation support platform 7.Hot-side heat dissipation support platform 7 upper surfaces and 9 couplings of cylinder Dewar, utilize uniform through hole 44 to be fastenedly connected by screw, utilizes sealing ring to seal.Hot-side heat dissipation support platform 7 cylindricals are installed on the center hole of equipment box 22 epipleurals, and U-shaped pulse tube refrigerating machine cold finger and vacuum chamber are fixed.Baffle plate 22 and fixed head 23 support U-shaped pulse tube refrigerating machine hot junction air reservoir connector 26 makes U-shaped pulse tube refrigerating machine be fixed support.Baffle plate 22 is comprised of two thin plates of symmetry, and two symmetrical semicircle annular fixed head 23 symmetries are installed and utilized screw to be fixed on baffle plate 22, and 22 liang of symmetrical members of baffle plate are connected in one.Baffle plate 22 and fixed head 23 are power house and electric control chamber two parts by equipment box 21 spatial separations, are played a supporting role in U-shaped pulse tube refrigerating machine hot junction.
The present invention has following features:
1) utilize U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter, make full use of that U-shaped pulse tube refrigerating machine is high at the relative coaxial type pulse tube refrigeration of the required best effort warm area of high temperature superconduction wave filter 60～80K warm area engine efficiency, cold is large, relatively linear pattern pulse tube refrigerating machine is easy to the advantages such as device coupling, for the operation of high temperature superconduction wave filter provides reliable and stable low temperature cold source.
2) adopt the large area platform of U-shaped cold head 8 as the working face platform of high temperature superconduction wave filter, by finish turning platform end face, high temperature superconduction wave filter can be fitted tightly with U-shaped cold head, and between the two, scribble low temperature heat-conducting silicone grease to strengthen cold conduction.
3) to high temperature superconduction wave filter, adopt unique radiation proof structure to reduce the loss of refrigeration capacity that heat radiation causes, wherein at U-shaped cold head 8 upper surfaces, be provided with the high radiation shield 11 and protective shield of radiation 12 of the outside grinding process of inner blackout, thin frame structure 13 outer wrapping Multilayer radiation-proof materials, these structures cover in U-shaped pulse tube refrigerating machine cold finger and high temperature superconduction wave filter 10 wherein, for high temperature superconduction wave filter, provide radiation proof low-temperature working environment.
4) hot-side heat dissipation support platform 7 and cylinder Dewar 9 form vacuum chamber, for high temperature superconduction wave filter provides work required vacuum environment.On cylinder Dewar 9 sidewalls, vacuum valve 14 is installed, during operation, utilizes vaccum-pumping equipment to pass through vacuum valve 14 and keep vacuum 5.0 * 10
-6below Pa.
5) will be fixed in equipment box 21 with whole placement of the closely-coupled high temperature superconduction wave filter 10 of U-shaped pulse tube refrigerating machine, 21 pairs of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filters of equipment box have played permanent plant, have been the effects such as equipment cooling, sealed in unit.
Pulse tube refrigerating machine reliability is high, long working life, and cold junction movement-less part, has eliminated the impact of cold junction motion oscillations on the transmission of high temperature superconduction wave filter signal.The present invention takes full advantage of the design feature of U-shaped pulse tube refrigerating machine, has realized the convenient coupling with high temperature superconduction wave filter, can be the low temperature cold source that high temperature superconduction wave filter provides reliable and stable, low noise, low vibration.The present invention further applies high temperature superconduction wave filter and U-shaped pulse tube refrigerating machine has positive meaning in the fields such as mobile communication practical.
Accompanying drawing explanation
Fig. 1 is three kinds of method for arranging schematic diagrames of pulse tube refrigerating machine, and wherein Fig. 1 (a) arranges for linear pattern, and Fig. 1 (b) is U-shaped layout, and Fig. 1 (c) is coaxial type layout.
Fig. 2 is the structural representation of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter.
Fig. 3 is U-shaped cold head 8 structural representations, and wherein Fig. 3 (a) is the main cutaway view of U-shaped cold head, and Fig. 3 (b) is upward view, and Fig. 3 (c) is slit post schematic diagram.
Fig. 4 is high radiation shield 11 and protective shield of radiation 12 structural diagrams, and wherein Fig. 4 (a) is front view, and Fig. 4 (b) is top view.
Fig. 5 is thin frame structure 13 structural representations, and wherein Fig. 5 (a) is front view, and Fig. 5 (b) is top view.
Fig. 6 is hot-side heat dissipation support platform 7 structural representations.
Fig. 7 is baffle plate 22 and fixed head 23 structural representations, and wherein Fig. 7 (a) is cutaway view, and Fig. 7 (b) is front view.
Wherein: 1 is compressor, 2 is connecting leg, 3 is regenerator, 4 is pulse tube, 5 is phase modulating mechanism, 6 is air reservoir, 7 is hot-side heat dissipation support platform, 8 is U-shaped cold head, 9 is cylinder Dewar, 10 is high temperature superconduction wave filter, 11 is high radiation shield, 12 is protective shield of radiation, 13 is thin frame structure, 14 is vacuum valve, 15 is coaxial cable, 16 is sealed electrical connector, 17 is cable, 18 is automatically controlled and signal pickup assembly, 19 is holding wire, 20 is wire harness apparatus, 21 is equipment box, 22 is baffle plate, 23 is fixed head, 24 is compressor bracket, 25 is cooling platform, 26 is air reservoir connector, 27 is hot junction connecting leg, 28 is fan, 29 is fence, 30 is regenerator end cold head, 31 is pulse pipe end cold head, 32 is slit post, 33 is pad, 34 is regenerator end cold head slit pore, 35 is pulse pipe end cold head slit pore, 36 is slit post slit, 37 is high radiation shield through hole, 38 is uniform through hole, 39 is hot-side heat dissipation support platform lower end boss, 40 is hot-side heat dissipation support platform upper end boss, 41 is hot-side heat dissipation support platform regenerator side slit pore, 42 is hot-side heat dissipation support platform pulse tube side slit pore, 43 is the fixing uniform boss of thin frame structure, 44 is the uniform through hole of hot-side heat dissipation support platform, 45 is baffle plate center circular groove.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail.
The structure of the U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter of inventing as shown in Figure 2, is comprised of U-shaped cold head 8, hot-side heat dissipation support platform 7, cylinder Dewar 9, high radiation shield 11, protective shield of radiation 12, thin frame structure 13, equipment box 21.The cold finger of U-shaped pulse tube refrigerating machine is comprised of regenerator 3, pulse tube 4, phase modulating mechanism 5, air reservoir 6, hot-side heat dissipation support platform 7, U-shaped cold head 8, and compressor 1 forms U-shaped pulse tube refrigerating machine by connecting leg 2 and cold finger coupling.U-shaped cold head 8 adopts the good high-purity oxygen-free copper of heat conductivility to be made, its structure as shown in Figure 3, by three parts, formed, comprise regenerator end cold head 30, pulse pipe end cold head 31 and slit post 32, wherein there are slit pore 34 and slit pore 35 in regenerator end cold head 30 and pulse pipe end cold head 31 lower ends.Slit post 32 has slit 36, and its left end inserts regenerator end cold head 30, and right-hand member inserts pulse pipe end cold head 31, and at 33 places, adopts the clean brazing mode of vacuum that three parts are welded as a whole.U-shaped cold head 8 integral body are square, slit pore 34, slit pore 35 and slit 36 Working medium gas by time expanded Working medium gas contact heat-exchanging area, improve the heat exchange efficiency of U-shaped cold head 8.Regenerator 3 and pulse tube 4 are inserted respectively in U-shaped cold head 8 belows.High temperature superconduction wave filter 10 is placed and is fixed on U-shaped cold head 8 upper surfaces, with U-shaped pulse tube refrigerating machine coupling.Wherein U-shaped cold head 8 upper surfaces are processed through finish turning, and flatness is 0.05mm, and to fit tightly with high temperature superconduction wave filter 10, and between scribbles low temperature heat-conducting silicone grease, to strengthen the transmission of cold.At U-shaped cold head 8 upper surfaces, be provided with high radiation shield 11 and protective shield of radiation 12, high temperature superconduction wave filter 10 and U-shaped cold head 8 are covered in wherein.The structure of high radiation shield 11 and protective shield of radiation 12 as shown in Figure 4, adopts highly reflective material to make, and wherein inner surface is through blackening process, and outer surface is processed through polishing grinding.In high radiation shield 11 both sides, have aperture 37, facilitate passing through of coaxial cable 15.High radiation shield 11 wall thickness are at 1.0mm, and the wall thickness thickness of protective shield of radiation 12 is at 0.5mm.High radiation shield 11 limit, lower end platforms and the protective shield of radiation 12 upper end Bian Tai uniform through hole 38 of having got on the bus, for being connected in U-shaped cold head 8 upper surfaces by high radiation shield 11 and protective shield of radiation 12 use screw fastenings.Thin frame structure 13 is installed in hot-side heat dissipation support platform 7, and U-shaped pulse tube refrigerating machine cold finger and high temperature superconduction wave filter 10 are covered in wherein, and as shown in Figure 5, the thin rod of bending that is expoxy glass steel fibre by 6 root timber material forms structure.In its outside, be wrapped with Multilayer radiation-proof material, at regenerator 3 and pulse tube 4, be wrapped with equally respectively Multilayer radiation-proof material, the loss of refrigeration capacity that may cause to reduce heat radiation around.Hot-side heat dissipation support platform 7 structures as shown in Figure 6, whole rounded slab construction.Hot-side heat dissipation support platform 7 lower end boss 39 utilize connecting leg 2 to connect compressor 1, upper end regenerator end slit pore 41 inserts and connects regenerator 3, upper end boss 40 has pulse pipe end slit pore 42 to insert connection pulse tube 4, and lower end utilizes hot junction connecting leg 27 to connect phase modulation structure 5 and air reservoirs 6.Slit pore 41 and slit pore 42 are cut with respectively slit, Working medium gas by time expanded hot-side heat dissipation support platform 7 and Working medium gas contact heat-exchanging area, improve heat exchange efficiency.As can be seen from Figure 6, hot-side heat dissipation support platform 7 becomes one the regenerator hot-side heat dissipation of U-shaped pulse tube refrigerating machine and pulse tube hot-side heat dissipation, by connecting leg 2, be connected compressor 1 and phase modulation apparatus with 27, and the parts such as regenerator 3 and pulse tube 4 are played a supporting role.There is uniform small boss 43 hot-side heat dissipation support platform 7 upper surfaces, for the installation of thin frame structure 13, fix.Hot-side heat dissipation support platform 7 is symmetrically installed with sealed electrical connector 16, for the signal transmission of high temperature superconduction wave filter 10.Hot-side heat dissipation support platform 7 upper surfaces and 9 couplings of cylinder Dewar, connect by screw fastening, utilizes sealing ring to seal, and support cylinder Dewar 9, forms U-shaped pulse tube refrigerating machine cold finger and the required vacuum chamber environment of high temperature superconduction wave filter 10 work.44 is the uniform through hole for screw fastening.During installation, hot-side heat dissipation support platform 7 cylindricals are installed on the center hole of equipment box 22 epipleurals, and U-shaped pulse tube refrigerating machine cold finger and vacuum chamber are fixed.Equipment box 21 provides integration packaging for U-shaped pulse tube refrigerating machine and high temperature superconduction wave filter 10.Wherein automatically controlled and signal pickup assembly 18 is positioned at the electric control chamber right side of equipment box 21 baffle plate 22 belows, in electric control chamber arranged outside, has outside power supply and signaling interface.Above baffle plate 22, place U-shaped pulse tube refrigerating machine, wherein the power house between baffle plate 22 and epipleural is placed compressor 1, and utilizes compressor bracket 24 to be fixed.Epipleural is placed hot-side heat dissipation support platform 7 for placing U-shaped pulse tube cold finger.Compressor 1 lower end is positioned over cooling platform 25 upper ends, cooling platform 25 lower ends are connected with air reservoir connector 26, and air reservoir connector 26 lower ends connect air reservoir 6, and are positioned in baffle plate 22 center circular grooves 45, utilize fixed head 23 to be fixed, baffle plate 22 and fixed head 23 structures are as shown in Figure 7.The side of air reservoir connector 26 outside paper has perforate, facilitates U-shaped pulse tube refrigerating machine hot junction connecting leg 27 to pass through.Hot junction connecting leg 27 is walked around compressor 1, through 26 perforates of air reservoir connector, is connected with phase modulation structure 5 and air reservoir 6.Equipment box 21 left side plates are provided with fan 28 and fence 29 respectively, and during equipment operation, fan is opened, and in hot-side heat dissipation support platform 7 positions, forms air flow passage, for it dispels the heat, improves refrigeration machine operating efficiency.
The manufacture method of the U-shaped pulse tube refrigerating machine cooling high-temperature superconducting filter construction of inventing can be implemented as follows:
U-shaped cold head 8 structures as shown in Figure 3, adopt the good high-purity oxygen-free copper of heat conductivility to be made, and comprise three parts: regenerator end cold head 30, pulse pipe end cold head 31 and slit post 32.Regenerator end cold head 30 lower ends utilize the slit of 45 wide 0.10mm of line cutting slow wire feeding processing, form slit pore 34, facilitate regenerator 3 to insert, slit post 32 left ends insert regenerator end cold head 30 right side blind holes, in pulse pipe end cold head 31 lower ends, adopt line cutting slow wire feeding processing slit to form slit pore 35, facilitate pulse tube 4 to insert.Slit post 32 inserts pulse pipe end cold head 32 left side blind holes.Slit post 32 is one section of cylindrical ladder section part, adopts respectively line cutting slow wire feeding processing slit 36 at two ends, left and right.During installation, slit post 32 left ends insert regenerator end cold head 30, and right-hand member inserts pulse pipe end cold head 31, adopt the clean brazing mode of vacuum that three parts seal weldings are integrated at 33 places.U-shaped cold head 8 upper surface finish turnings, flatness is 0.05mm, during installation, surface is coated with low temperature heat-conducting silicone grease, fits tightly with high temperature superconduction wave filter 10.
High radiation shield 11 is installed on U-shaped cold head 8 upper surfaces with protective shield of radiation 12, and high temperature superconduction wave filter 10 and U-shaped cold head 8 are covered in wherein, and structure as shown in Figure 4, adopts highly reflective material to make.High radiation shield 11 cross sections are several character form structures, at its two sidetrackings aperture 37, facilitate passing through of coaxial cable 15, and wall thickness is 1.0mm.The wall thickness 0.5mm of protective shield of radiation 12.At high radiation shield 11 limit, lower end platforms and the protective shield of radiation 12 upper end Bian Tai uniform through hole 38 of having got on the bus.High radiation shield 11 and protective shield of radiation 12 inner surfaces all pass through blackening process, and outer surface is processed through sanding and polishing.During installation, can utilize uniform through hole 38 use screw fastenings to be connected in U-shaped cold head 8 upper surfaces.
As shown in Figure 5, the thin rod of bending that is expoxy glass steel fibre by 6 root timber material forms thin frame structure 13 structures.Thin frame structure 13 is installed in hot-side heat dissipation support platform 7, and outside is wrapped with Multilayer radiation-proof material, and U-shaped pulse tube refrigerating machine cold finger and high temperature superconduction wave filter 10 are covered in wherein.
Hot-side heat dissipation support platform 7 structures as shown in Figure 6, whole rounded slab construction.Hot-side heat dissipation support platform 7 lower end cars have boss 39, and connecting leg 2 inserts boss 39 center holes, and the other end connects compressor 1, and hot junction connecting leg 27 inserts in the corresponding circle hole of right side, lower end, and the other end connects phase modulation structure 5 and air reservoir 6.There is boss 40 hot-side heat dissipation support platform 7 upper ends, utilize respectively line cutting slow wire feeding processing slit pore 41 and slit pore 42 in hot-side heat dissipation support platform 7 upper ends, and regenerator 3 and pulse tube 4 insert respectively regenerator end slit pore 41 and pulse pipe end slit pore 42.The uniform small boss 43 of hot-side heat dissipation support platform 7 upper surface car, fixes for the installation of thin frame structure 13.Hot-side heat dissipation support platform 7 is symmetrically installed with sealed electrical connector 16.Hot-side heat dissipation support platform 7 upper surfaces and 9 couplings of cylinder Dewar, utilize uniform through hole 44 to be fastenedly connected by screw, utilizes sealing ring to seal.During installation, hot-side heat dissipation support platform 7 cylindricals are installed on the center hole of equipment box 22 epipleurals, fixing U-shaped pulse tube refrigerating machine cold finger and vacuum chamber.
As shown in Figure 7, baffle plate 22 is two symmetrical thin plates for baffle plate 22 and fixed head 23 structures, and symmetrical installation, utilizes screw to be fixed on baffle plate 22 two symmetrical fixed heads that are semicircle annular 23, and 22 liang of symmetrical members of baffle plate are connected in one.Baffle plate 22 and fixed head 23 are power house and electric control chamber two parts by equipment box 21 spatial separations, to support U-shaped pulse tube refrigerating machine hot junction.
Claims (2)
1. the structure of a U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter, it is comprised of U-shaped cold head (8), hot-side heat dissipation support platform (7), cylinder Dewar (9), high radiation shield (11), protective shield of radiation (12), thin frame structure (13), equipment box (21), it is characterized in that: the cold finger of U-shaped pulse tube refrigerating machine is comprised of regenerator (3), pulse tube (4), phase modulating mechanism (5), air reservoir (6), hot-side heat dissipation support platform (7), U-shaped cold head (8), compressor (1) forms U-shaped pulse tube refrigerating machine by connecting leg (2) and cold finger coupling; Hot-side heat dissipation support platform (7) becomes one the regenerator hot-side heat dissipation of U-shaped pulse tube refrigerating machine and pulse tube hot-side heat dissipation, and is coupled with cylinder Dewar (9), supports and forms vacuum chamber; High temperature superconduction wave filter (10) is placed and is fixed on U-shaped cold head (8) working face, with this and U-shaped pulse tube refrigerating machine, is coupled; At U-shaped cold head (8) upper surface, high radiation shield (11) and protective shield of radiation (12) are set, high temperature superconduction wave filter (10) and U-shaped cold head (8) are covered in wherein, in the upper thin frame structure (13) of installing of hot-side heat dissipation support platform (7), thin frame structure (13) outside is wrapped with Multilayer radiation-proof material, regenerator (3) and pulse tube (4) are wrapped with respectively Multilayer radiation-proof material around, and U-shaped pulse tube refrigerating machine cold finger is covered in wherein; Cylinder Dewar (9) lower end and hot-side heat dissipation support platform (7) upper end fit, and utilize screw to be fastenedly connected, and sealing ring seals; On cylinder Dewar (9) sidewall, vacuum valve (14) is installed, during operation, is utilized vaccum-pumping equipment to pass through vacuum valve (14) and keep vacuum 5.0 * 10
-6below Pa; High temperature superconduction wave filter (10) is connected in by coaxial cable (15) the sealed electrical connector (16) being positioned in hot-side heat dissipation support platform (7) signal is passed to outside vacuum chamber, and by cable (17), signal is transferred to automatically controlled and signal pickup assembly (18); Automatically controlled and signal pickup assembly (18) carries out input and the control of power supply signal to compressor (1) by holding wire (19), cable (17) and holding wire (19) are fixing by wire harness apparatus (20).Integral device is positioned in equipment box (21); Automatically controlled and signal pickup assembly (18) is positioned at the electric control chamber right side of equipment box (21) baffle plate (22) below, in electric control chamber arranged outside, has outside power supply and signaling interface; In baffle plate (22) top, place U-shaped pulse tube refrigerating machine, the power house being positioned between baffle plate (22) and epipleural is placed compressor (1), utilizes compressor bracket (24) to be fixed; Compressor (1) lower end is positioned over cooling platform (25) upper end, cooling platform (25) lower end is connected with air reservoir connector (26), air reservoir connector (26) lower end connects air reservoir (6), and be positioned over baffle plate (22), utilize fixed head (23) to be fixed; Air reservoir connector (26) side outside paper has perforate, facilitates U-shaped pulse tube refrigerating machine hot junction connecting leg (27) to pass through; Hot junction connecting leg (27) is walked around compressor (1), through air reservoir connector (26) perforate, is connected with phase modulation structure (5) and air reservoir (6); Equipment box (21) left side plate is provided with fan (28) and fence (29) respectively, and during equipment operation, fan (28) is opened, and forms air flow passage, for it dispels the heat in hot-side heat dissipation support platform (7) position; Thereby jointly form a kind of structure of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter.
2. the manufacture method of the structure of an a kind of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter as claimed in claim 1, it is characterized in that: U-shaped cold head (8) adopts the good high-purity oxygen-free copper of heat conductivility to be made, and regenerator end cold head (30), pulse pipe end cold head (31) and slit post (32), consists of; Regenerator end cold head (30) lower end utilizes the slit of the wide 0.02～0.15mm of line cutting slow wire feeding processing 30-60 bar, form slit pore (34), facilitate regenerator (3) to insert, on regenerator end cold head (30) right side, have blind hole to facilitate slit post (32) left end to insert; In pulse pipe end cold head (31) lower end, adopt line cutting slow wire feeding processing slit to form slit pore (35), facilitate pulse tube (4) to insert; In pulse pipe end cold head (32) left side, car blind hole facilitates slit post (32) to insert; Slit post (32) is one section of cylindrical ladder section part, adopts respectively line cutting slow wire feeding processing slit (36) at two ends, left and right; During installation, slit post (32) left end inserts regenerator end cold head (30), and right-hand member inserts pulse pipe end cold head (31), in (33), locates to adopt the clean brazing mode of vacuum that three parts seal weldings are integrated; The U-shaped cold head of finish turning (8) top surface plane degree is below 0.10mm, and surface is coated with low temperature heat-conducting silicone grease, fits tightly with high temperature superconduction wave filter (10); High radiation shield (11) and protective shield of radiation (12) are installed in U-shaped cold head (8) upper surface, high temperature superconduction wave filter (10) and U-shaped cold head (8) are covered in wherein, adopt highly reflective material to make; High radiation shield (11) cross section is several character form structures, and two sidetracking apertures (37), facilitate passing through of coaxial cable (15), wall thickness 0.5～2.0mm.The wall thickness 0.2～1.0mm of protective shield of radiation (12), high radiation shield (11) limit, lower end platform and protective shield of radiation (12) the upper end Bian Tai uniform through hole (38) of having got on the bus, high radiation shield (11) and protective shield of radiation (12) inner surface blackening process, outer surface sanding and polishing, utilizes uniform through hole (38) to be connected in U-shaped cold head (8) upper surface with screw fastening, thin frame structure (13) is the thin bar construction of bending of expoxy glass steel fibre by 3～10 root timber material, be installed on hot-side heat dissipation support platform (7), outside is wrapped with Multilayer radiation-proof material, and U-shaped pulse tube refrigerating machine cold finger and high temperature superconduction wave filter (10) are covered in wherein, the whole rounded slab construction of hot-side heat dissipation support platform (7), lower end car boss (39), connecting leg (2) inserts boss (39) center hole, the other end connects compressor (1), hot junction connecting leg (27) inserts right side, lower end corresponding circle hole, the other end connects phase modulation structure (5) and air reservoir (6), hot-side heat dissipation support platform (7) upper end car boss (40), in hot-side heat dissipation support platform (7) upper end, utilize respectively line cutting slow wire feeding processing slit pore (41) and slit pore (42), regenerator (3) and pulse tube (4) insert respectively regenerator end slit pore (41) and pulse pipe end slit pore (42), hot-side heat dissipation support platform (7) the uniform small boss of upper surface car (43), be connected and fixed thin frame structure (13).The symmetrical sealed electrical connector (16) of installing of hot-side heat dissipation support platform (7), hot-side heat dissipation support platform (7) upper surface and cylinder Dewar (9) coupling, by screw, utilize uniform through hole (44) to be fastenedly connected, utilize sealing ring to seal, hot-side heat dissipation support platform (7) cylindrical is installed on the center hole of equipment box (22) epipleural, and U-shaped pulse tube refrigerating machine cold finger and vacuum chamber are fixed.Baffle plate (22) and fixed head (23) support U-shaped pulse tube refrigerating machine hot junction air reservoir connector (26) makes U-shaped pulse tube refrigerating machine be fixed support; Baffle plate (22) is comprised of two thin plates of symmetry, two symmetrical semicircle annular fixed heads (23) symmetry is installed and utilized screw to be fixed on baffle plate (22), baffle plate (22) two symmetrical members are connected in one, baffle plate (22) and fixed head (23) are power house and electric control chamber two parts by equipment box (21) spatial separation, are played a supporting role in U-shaped pulse tube refrigerating machine hot junction.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403305.7A CN104180552A (en) | 2014-08-15 | 2014-08-15 | U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method |
| CN201410748014.1A CN104534717A (en) | 2014-08-15 | 2014-12-09 | U-shaped pulse tube refrigerator cooling high-temperature superconducting filter structure and manufacturing method |
| CN201520372245.7U CN204787387U (en) | 2014-08-15 | 2015-06-02 | Structure of U type pulsatron refrigerator cooling high temperature superconduction wave filter |
| CN201510295667.3A CN105091391B (en) | 2014-08-15 | 2015-06-02 | The structure and manufacture method of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403305.7A CN104180552A (en) | 2014-08-15 | 2014-08-15 | U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method |
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| Publication Number | Publication Date |
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| CN104180552A true CN104180552A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410403305.7A Pending CN104180552A (en) | 2014-08-15 | 2014-08-15 | U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method |
| CN201410748014.1A Withdrawn CN104534717A (en) | 2014-08-15 | 2014-12-09 | U-shaped pulse tube refrigerator cooling high-temperature superconducting filter structure and manufacturing method |
| CN201520372245.7U Withdrawn - After Issue CN204787387U (en) | 2014-08-15 | 2015-06-02 | Structure of U type pulsatron refrigerator cooling high temperature superconduction wave filter |
| CN201510295667.3A Active CN105091391B (en) | 2014-08-15 | 2015-06-02 | The structure and manufacture method of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410748014.1A Withdrawn CN104534717A (en) | 2014-08-15 | 2014-12-09 | U-shaped pulse tube refrigerator cooling high-temperature superconducting filter structure and manufacturing method |
| CN201520372245.7U Withdrawn - After Issue CN204787387U (en) | 2014-08-15 | 2015-06-02 | Structure of U type pulsatron refrigerator cooling high temperature superconduction wave filter |
| CN201510295667.3A Active CN105091391B (en) | 2014-08-15 | 2015-06-02 | The structure and manufacture method of U-shaped pulse tube refrigerating machine cooling high-temperature superconducting wave filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430853A (en) * | 2020-04-13 | 2020-07-17 | 卢姝欣 | Superconductive filter encapsulation shielding device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180552A (en) * | 2014-08-15 | 2014-12-03 | 中国科学院上海技术物理研究所 | U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method |
| CN114497931B (en) * | 2020-10-28 | 2023-06-27 | 中国科学院理化技术研究所 | High temperature superconducting filter system |
| CN114597618A (en) * | 2020-12-07 | 2022-06-07 | 中国科学院理化技术研究所 | Low-temperature system of high-temperature superconducting filter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048423A (en) * | 2000-08-07 | 2002-02-15 | Cryodevice Inc | Cooling system of superconducting filter facility |
| CN103307797A (en) * | 2013-06-21 | 2013-09-18 | 中国科学院上海技术物理研究所 | U-shaped pulse tube refrigerator and infrared device compact type coupled structure and manufacturing method |
| CN203771765U (en) * | 2014-01-17 | 2014-08-13 | 中国科学院上海技术物理研究所 | Compact coupled inertia tube type high-frequency coaxial pulse tube refrigerating machine |
| CN104180552A (en) * | 2014-08-15 | 2014-12-03 | 中国科学院上海技术物理研究所 | U-shaped pulse tube refrigerating machine structure for cooling high temperature superconducting filter and manufacture method |
-
2014
- 2014-08-15 CN CN201410403305.7A patent/CN104180552A/en active Pending
- 2014-12-09 CN CN201410748014.1A patent/CN104534717A/en not_active Withdrawn
-
2015
- 2015-06-02 CN CN201520372245.7U patent/CN204787387U/en not_active Withdrawn - After Issue
- 2015-06-02 CN CN201510295667.3A patent/CN105091391B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430853A (en) * | 2020-04-13 | 2020-07-17 | 卢姝欣 | Superconductive filter encapsulation shielding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204787387U (en) | 2015-11-18 |
| CN105091391B (en) | 2017-06-27 |
| CN104534717A (en) | 2015-04-22 |
| CN105091391A (en) | 2015-11-25 |
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Application publication date: 20141203 |