CN204084933U - Separate unit linear compressor drives the structure of two straight line vascular cold fingers - Google Patents
Separate unit linear compressor drives the structure of two straight line vascular cold fingers Download PDFInfo
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- CN204084933U CN204084933U CN201420310544.3U CN201420310544U CN204084933U CN 204084933 U CN204084933 U CN 204084933U CN 201420310544 U CN201420310544 U CN 201420310544U CN 204084933 U CN204084933 U CN 204084933U
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- heat exchanger
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- regenerator
- pedestal
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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
This patent discloses the structure that a kind of separate unit linear compressor drives two straight line vascular cold fingers, this structure is by main basal base, secondary pedestal, bilateral type compressor pedestal, opposed type linear compressor main member, the left outside shell of compressor, compressor right casing, upper pulse tube hot end heat exchanger, upper main heat exchanger, last time heat exchanger, upper regenerator, upper pulse tube, upper cool end heat exchanger, upper vacuum (-tight) housing, upper pulse tube connecting leg, upper inertia tube, upper air reservoir, upper protective cover, on lift support and lower pulse tube hot end heat exchanger, lower main heat exchanger, next heat exchanger, lower regenerator, lower pulse tube, lower cool end heat exchanger, lower vacuum (-tight) housing, lower pulse tube connecting leg, lower inertia tube, lower air reservoir, lower protective cover, under lift support composition.This patent makes full use of the design feature of straight pulse control cold, inertia tube phase modulation apparatus and linear compressor, separate unit linear compressor can be realized and drive two straight line vascular cold fingers, practical significant at special dimensions such as Aero-Space of paired pulses control cold.
Description
Technical field
This patent belongs to refrigeration & cryogenic engineering field, relates to pulse tube refrigerating machine, and particularly a kind of separate unit linear compressor drives structure and the manufacture method of two straight line vascular cold fingers.
Background technology
Pulse tube refrigerating machine is a significant innovation to regenerating type low-temperature refrigerator, which eliminate the cold junction displacer be widely used in conventional regenerating type low-temperature refrigerator (as Stirling and G-M refrigeration machine), achieve the low vibration of cold junction, low interference and without wearing and tearing; And the important improvement in structure optimization and pm mode, at typical warm area, its actual efficiency has also reached the peak of regenerating type low-temperature refrigerator.These remarkable advantages make pulse tube refrigerating machine become a big hot topic of Cryo Refrigerator research over nearly 30 years, all obtain a wide range of applications in Aero-Space, low-temperature electronics, superconduction industry and cryosurgery industry etc.
The driving compressor of pulse tube refrigerating machine is divided into linear compressor and two kinds, G-M type compressor.The pulse tube refrigerating machine of the application such as space flight and military affairs, very strict restriction is had to weight and volume, for the linear compressor that the pulse tube refrigerating machine of this part application generally all adopts lightweight high frequency to operate, the operating frequency of linear compressor at more than 30Hz, and for the frequency of the comparatively heavy G-M type compressor of Ground Application generally at 1 ~ 2Hz.Thus, according to the difference driving compressor, again pulse tube refrigerating machine is divided for the high frequency pulse tube cooler driven by linear compressor and two kinds, the low frequency pulse tube system refrigeration machine by G-M type driven compressor.The high frequency pulse tube cooler driven by linear compressor, due to compact conformation, the outstanding advantages such as lightweight, volume is little, efficiency is high, running is reliable, life expectancy is long, becomes the Regeneration variety of space flight regenerating type low-temperature refrigerator of new generation just day by day.
According to the correlation of pulse tube and regenerator, pulse tube refrigerating machine can be divided into again following three kinds of exemplary configurations modes: U-shaped, coaxial type and linear pattern.Three class pulse tube refrigerating machines are all primarily of compressor, connecting leg, vascular cold finger (comprising regenerator hot end heat exchanger, regenerator, cool end heat exchanger, pulse tube, pulse tube hot end heat exchanger and phase modulating mechanism) composition.In linear pattern layout, pulse tube and regenerator are in a straight line; U-shaped layout refers to that pulse tube and regenerator are arranged in parallel, and pulse tube is connected by pipeline with the cold junction of regenerator; Coaxial type is arranged and is referred to that pulse tube and regenerator are arranged together with one heart.Pm mode is most important for pulse tube refrigerating machine, the maximum feature that pulse tube refrigerating machine is different from conventional regenerating type low-temperature refrigerator (as Stirling or G-M refrigeration machine) eliminates the displacer of cold junction for control phase, and arrange corresponding phase modulating mechanism in hot junction.Wherein, inertia tube adds the pm mode of air reservoir because the outstanding advantages such as phase modulation wide ranges, structure be simple, stable and reliable for performance, becomes preferred manner at the special dimension such as Aero-Space and Military Application.
Traditionally, pulse tube refrigerating machine all adopts single compressor to drive the arrangement of separate unit pulse tube cold finger.Fig. 1 shows the schematic diagram that separate unit linear compressor drives the inertia cast pulse tube refrigerating machine of three kinds of exemplary configurations forms, wherein: (1) is U-shaped vascular cold finger for separate unit linear compressor drives, (2) for separate unit linear compressor drives co-axial pulse tube cold finger, (3) are separate unit linear compressor driving linear pattern vascular cold finger.
In concrete application practice, usually can run into the situation needing to provide refrigerating capacity at two different warm areas.As in space remote sensing telemetry system, same system may use shortwave and medium-wave infrared detector simultaneously, or medium wave and Long Wave Infrared Probe, and the operation temperature area of different detector is different; Or sometimes need cooled detector and optical system simultaneously, detector is not identical with the operating temperature of optical system yet.At this moment, conventional method is that employing two Cryo Refrigerators freeze at different temperature spots, and system is loose, and weight, volume, power consumption increase all greatly, in some special application fields (as Aero-Space and Military Application), bring very big inconvenience, sometimes even unacceptable.Emphasizing the Aero-Space of compact conformation and application reliability and the field such as military, seek to drive the scheme of two vascular cold fingers to become a great problem in the urgent need to address in application practice gradually with separate unit linear compressor.
Summary of the invention
In view of this, this patent proposes the structure that a kind of separate unit linear compressor drives two straight line vascular cold fingers.
The separate unit linear compressor invented drives the structure of two straight line vascular cold fingers by main basal base 1, secondary pedestal 2, bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor, compressor right casing 6, upper pulse tube hot end heat exchanger 7, upper main heat exchanger 8, last time heat exchanger 9, upper regenerator 10, upper pulse tube 11, upper cool end heat exchanger 12, upper vacuum (-tight) housing 13, upper pulse tube connecting leg 14, upper inertia tube 15, upper air reservoir 16, upper protective cover 17, on lift support 29 and lower pulse tube hot end heat exchanger 7 ', lower main heat exchanger 8 ', next heat exchanger 9 ', lower regenerator 10 ', lower pulse tube 11 ', lower cool end heat exchanger 12 ', lower vacuum (-tight) housing 13 ', lower pulse tube connecting leg 14 ', lower inertia tube 15 ', lower air reservoir 16 ', lower protective cover 17 ', under lift support 29 ' form, it is characterized in that, main basal base 1 is as total supporting base of total, the lower end of secondary pedestal 2 processes time pedestal lower surface 18, and is supported on main basal base upper surface 19, and the upper end of secondary pedestal 2 processes and supports cambered surface 20, supports cambered surface 20 and is supported on the downside of the shell surface of bilateral type compressor pedestal 3, bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor and compressor right casing 6 form an opposed type linear compressor, this compressor adopts double-piston opposed formula structure, and left and right two parts are axis 36 full symmetric centrally, venthole 22 and compressor lower production well 22 ' on compressor is vertically opened respectively along central authorities in the both sides up and down of bilateral type compressor pedestal 3, realize the connection between the compression chamber 23 of opposed type linear compressor and upper hopper shape duct 28 by venthole on compressor 22, realize the connection between the compression chamber 23 of opposed type linear compressor and lower infundibulate duct 28 ' by compressor lower production well 22 ', brace table 24 and compressor lower support platform 24 ' on compressor is processed respectively in the both sides of bilateral type compressor pedestal 3, on compressor, brace table 24 carries out contact connection support by upper brace table plane 25 to upper main heat exchanger 8, and compressor lower support platform 24 ' carries out contact by lower support platform plane 25 ' to lower main heat exchanger 8 ' and connects support, on the compressor brace table 24 and compressor lower support platform 24 ' process brace table through hole 40 and lower support platform through hole 40 ' respectively, the openend of the left outside shell 5 of compressor and pedestal lower left side 26 seal welding of bilateral type compressor pedestal 3, the openend of compressor right casing 6 and pedestal lower right sides 27 seal welding of bilateral type compressor pedestal 3, heat exchanger 9 to insert with one heart within upper main heat exchanger 8 and to be welded to connect last time, and next heat exchanger 9 ' inserts with one heart and is welded to connect within main heat exchanger 8 ' down, on compressor, venthole 22 is connected directly between on heat exchanger 11 last time, and is communicated with upper regenerator 10 by the upper hopper shape duct 28 in last time heat exchanger 11, compressor lower production well 22 ' is connected directly between on next heat exchanger 11 ', and is communicated with lower regenerator 10 ' by the lower infundibulate duct 28 ' that next heat exchanger 11 ' is interior, upper regenerator 10 to insert with one heart within main heat exchanger 8 and is welded to connect, upper cool end heat exchanger 12 is arranged at the junction of regenerator 10 and upper pulse tube 11, it is logical structure in a square, upper conical slit pore 41 is opened in left and right, be communicated with upper pulse tube 11 with upper regenerator 10 respectively, upper pulse tube 11 and upper regenerator 10 are welded to connect in the cool end heat exchanger upper and lower with one heart vertical insertion 12 respectively, on upper pulse tube 11 top, pulse tube hot end heat exchanger 7 is set, upper pulse tube 11 vertically inserts upper pulse tube hot end heat exchanger 7 inside and is welded to connect, upper pulse tube hot end heat exchanger 7 is a special-shaped composite construction, the upper connection headkerchief 43 opening upper intercommunicating pore 42 by upper cylindrical slot heat exchanging body 35 and inside of an intensive cutting slit from inside forms, upper cylindrical slot heat exchanging body 35 and upper connection headkerchief 43 weld together the upper pulse tube hot end heat exchanger 7 of composition, on lift one end of support 29 and upper brace table plane 25 is connected and fixed, the other end lifting support 29 lifts supporting role to upper pulse tube hot end heat exchanger 7, lower regenerator 10 ' to insert with one heart within lower main heat exchanger 8 ' and is welded to connect, lower cool end heat exchanger 12 ' is arranged at the junction of lower regenerator 10 ' and lower pulse tube 11 ', it is logical structure in a square, inferior pyramidal slit pore 41 ' is opened in left and right, be communicated with lower pulse tube 11 ' with lower regenerator 10 ' respectively, lower pulse tube 11 ' and lower regenerator 10 ' are interior and be welded to connect from cool end heat exchanger 12 ' upper and lower with one heart vertical insertion respectively, on lower pulse tube 11 ' top, lower pulse tube hot end heat exchanger 7 ' is set, lower pulse tube 11 ' vertically inserts lower pulse tube hot end heat exchanger 7 ' inside and is welded to connect, lower pulse tube hot end heat exchanger 7 ' is a special-shaped composite construction, the upper connection headkerchief 43 ' opening lower intercommunicating pore 42 ' by lower cylindrical slot heat exchanging body 35 ' and inside of an intensive cutting slit from inside forms, lower cylindrical slot heat exchanging body 35 ' and lower connection headkerchief 43 ' weld together the lower pulse tube hot end heat exchanger 7 ' of composition, under lift one end of support 29 ' and lower support platform plane 25 ' is connected and fixed, under lift support 29 ' the other end lower pulse tube hot end heat exchanger 7 ' risen lift supporting role, one end of upper pulse tube connecting leg 14 is connected with upper pulse tube hot end heat exchanger 7, and be communicated with upper pulse tube 11 by the upper intercommunicating pore 42 in upper pulse tube hot end heat exchanger 7 and upper cylindrical slot heat exchanging body 35, the other end of upper pulse tube connecting leg 14, through upper brace table through hole 40, is then communicated with upper inertia tube import 30, one end of lower pulse tube connecting leg 14 ' is connected with lower pulse tube hot end heat exchanger 7 ', and be communicated with lower pulse tube 11 ' by the interior lower intercommunicating pore 42 ' of lower pulse tube hot end heat exchanger 7 ' and lower cylindrical slot heat exchanging body 35 ', the other end of lower pulse tube connecting leg 14 ', through lower support platform through hole 40 ', is then communicated with lower inertia tube import 30 ', upper inertia tube 15 and lower inertia tube 15 ' all adopt single hop or multistage long and thin metal copper pipe to make, and upper inertia tube 15 closely coils on compressor right casing 6, and upper inertia tube outlet 31 uses Vacuum Soldering Technology to weld together with upper air reservoir air inlet 32, lower inertia tube 15 ' closely coils on the left outside shell 5 of compressor, and lower inertia tube outlet 31 ' uses Vacuum Soldering Technology to weld together with lower air reservoir air inlet 32 ', upper air reservoir 16 is the hollow sealed volume of an annular diameters slightly larger than compressor right casing 6 external diameter, and upper air reservoir inner ring surface 33 is held on compressor right casing 6, lower air reservoir 16 is the hollow sealed volume of an annular diameters slightly larger than compressor left outside shell 5 external diameter, and lower air reservoir inner ring surface 33 ' is held on the left outside shell 5 of compressor, working gas is by bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor, compressor right casing 6, upper main heat exchanger 8, last time heat exchanger 9, upper regenerator 10, upper pulse tube 11, upper cool end heat exchanger 12, upper pulse tube hot end heat exchanger 7, upper pulse tube connecting leg 14, upper inertia tube 15, upper air reservoir 16 and lower main heat exchanger 8 ', next heat exchanger 9 ', lower regenerator 10 ', lower pulse tube 11 ', lower cool end heat exchanger 12 ', lower pulse tube hot end heat exchanger 7 ', lower pulse tube connecting leg 14 ', lower inertia tube 15 ', reciprocating vibration in the confined space that lower air reservoir 16 ' forms, the case that upper protective cover 17 is closed for one end, upper right side 34 seal welding of its openend and bilateral type compressor pedestal 3, covers in wherein by upper inertia tube 15, upper air reservoir 16 and compressor right casing 6, the case that lower protective cover 17 ' is closed for one end, side, the upper left 34 ' seal welding of its openend and bilateral type compressor pedestal 3, covers in left outside to lower inertia tube 15 ', lower air reservoir 16 ' and compressor shell 5 wherein.Thus a kind of separate unit linear compressor of common formation drives the structure of two straight line vascular cold fingers.
Drive the manufacture method of the structure of two straight line vascular cold fingers to be described as follows to invented separate unit linear compressor below in conjunction with accompanying drawing:
Fig. 2 drives the section plan of the structure of two straight line vascular cold fingers for invented separate unit linear compressor; Fig. 3 is the generalized section that main basal base 1 and time pedestal 2 support opposed type linear compressor; Fig. 4 is the schematic perspective view of secondary pedestal 2; Fig. 5 (1) and Fig. 5 (2) is respectively section plan and the schematic perspective view of bilateral type compressor pedestal 3; Fig. 6 (1) is upper regenerator 10, the assembled sectional view of upper pulse tube 11, upper cool end heat exchanger 12 and upper pulse tube hot end heat exchanger 7, and Fig. 6 (2) is lower regenerator 10 ', the assembled sectional view of lower pulse tube 11 ', lower cool end heat exchanger 12 ' and lower pulse tube hot end heat exchanger 7 '; Fig. 7 (1) and Fig. 7 (2) is respectively the schematic perspective view of vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 '; Fig. 8 (1) and Fig. 8 (2) is respectively the schematic perspective view of inertia tube 15 and lower inertia tube 15 '; Fig. 9 (1) and Fig. 9 (2) is respectively the schematic perspective view of air reservoir 16 and lower air reservoir 16 ';
The high thermal conductivity metal plate that main basal base 1 is 20 ~ 40mm by thickness is made, the flatness of dull and stereotyped upper and lower surface all uses fine turning lathe, milling machine and grinding machine processing guarantee to be between 1.0 ~ 5.0 μm, flatbed horizontal is placed, and carries out vertical support to total, secondary pedestal 2 is made by high-thermal conductive metal material, the flatness of secondary pedestal lower surface 18 uses fine turning lathe, milling machine and grinding machine processing guarantee to be between 1.0 ~ 5.0 μm, supporting cambered surface 20 uses the method for low-speed WEDM to process, and matches with cambered surface on the downside of the shell surface of bilateral type compressor pedestal 3, bilateral type compressor pedestal 3 adopts the metal material of high thermal conductivity and high strength to make, its both sides adopt precise numerical control machine to process brace table 24 and compressor lower support platform 24 ' on compressor respectively, the outer surface of the two uses fine turning lathe, milling machine and grinding machine to process brace table plane 25 and lower support platform plane 25 ' respectively, on the compressor brace table 24 and compressor lower support platform 24 ' uses drilling machine to process brace table through hole 40 and lower support platform through hole 40 ' respectively, venthole 22 and all use wire cutting method cutting to form with the upper hopper under shed 44 in the upper hopper shape duct 28 in last time heat exchanger 9 on compressor, ensure that on compressor, venthole 22 is all identical with the aperture of upper hopper under shed 44, worst error is no more than 5.0 μm, and when ensureing to connect on compressor the hole heart of venthole 22 and upper hopper under shed 44 point-blank, worst error is no more than 10.0 μm, being communicated with between the compression chamber 23 of opposed type linear compressor and upper regenerator 10 is realized with upper hopper shape duct 28 by venthole on compressor 22, the lower funnel under shed 44 ' in compressor lower production well 22 ' and the lower infundibulate duct 28 ' interior with next heat exchanger 9 ' all uses wire cutting method cutting to form, ensure that compressor lower production well 22 ' is all identical with the aperture of lower funnel under shed 44 ', worst error is no more than 5.0 μm, and when ensureing to connect the hole heart of compressor lower production well 22 ' and lower funnel under shed 44 ' point-blank, worst error is no more than 10.0 μm, being communicated with between the compression chamber 23 of opposed type linear compressor and lower regenerator 10 ' is realized with lower infundibulate duct 28 ' by compressor lower production well 22 ', upper pulse tube 11 and lower pulse tube 11 ' all adopt the stainless steel of low heat conductivity or titanium alloy material to make, and adopt low-speed WEDM method to process, inwall grinding and polishing, ensure that inwall fineness is better than 0.5 μm, upper regenerator 10 by upper cold accumulator 37 and be filled in upper cold accumulator 37 inside disc on cold-storage filler 38 form, lower regenerator 10 ' by lower cold accumulator 37 ' and under being filled in the inner disc of lower cold accumulator 37 ' cold-storage filler 38 ' form, wherein going up cold accumulator 37 and lower cold accumulator 37 ' all adopts the stainless steel of low heat conductivity or titanium alloy material to make, low-speed WEDM method is adopted to process, inwall grinding and polishing, all ensure that inwall fineness is better than 2.0 μm, upper cold-storage filler 38 and lower cold-storage filler 38 ' are formed by the silk screen of high specific heat or the tight filling of sphere, upper main heat exchanger 8 and last time heat exchanger 9 all adopt the high-purity oxygen-free copper material of high thermal conductivity to make, wherein going up main heat exchanger 8 inside uses low-speed WEDM technology to be processed into a hollow structure, last time, heat exchanger 9 inserted in upper main heat exchanger 8 with one heart, therebetween joint face uses Vacuum Soldering Technology welding, heat exchanger last time lower surface 21 and upper brace table plane 25 are fitted closely, use bolt to connect therebetween, precision machine tool was used to process upper hopper shape duct 28 with the position of upper regenerator 10 vertical concentric in last time in heat exchanger 9, and use honing machine grinding inwall, make its surface smoothness all higher than 0.01mm, the upper hopper opening inside diameter 0.01 ~ 0.05mm larger than the external diameter of upper regenerator 10 in upper hopper shape duct 28, in the insertion with one heart of upper regenerator 10 within main heat exchanger 8, insertion depth remains between 2.0 ~ 4.0mm, and the contact surface inserting position all uses Vacuum Soldering Technology to weld, lower main heat exchanger 8 ' and next heat exchanger 9 ' all adopt the high-purity oxygen-free copper material of high thermal conductivity to make, main heat exchanger 8 ' inside is wherein descended to use low-speed WEDM technology to be processed into a hollow structure, next time, heat exchanger 9 ' inserted in lower main heat exchanger 8 ' with one heart, therebetween joint face uses Vacuum Soldering Technology welding, fitting closely with lower support platform plane 25 ' in next heat exchanger lower surface 21 ', uses bolt to connect therebetween, precision machine tool is used to process lower infundibulate duct 28 ' in the position of the interior and lower regenerator 10 ' vertical concentric of next heat exchanger 9 ', and use honing machine grinding inwall, make its surface smoothness all higher than 0.01mm, the upper hopper opening inside diameter 0.01 ~ 0.05mm larger than the external diameter of lower regenerator 10 ' in lower infundibulate duct 28 ', under the insertion with one heart of lower regenerator 10 ' within main heat exchanger 8 ', insertion depth remains between 2.0 ~ 4.0mm, and the contact surface inserting position all uses Vacuum Soldering Technology to weld, upper cool end heat exchanger 12 and lower cool end heat exchanger 12 ' make by the oxygenless copper material of high thermal conductivity, upper cool end heat exchanger 12 is arranged between regenerator 10 and upper pulse tube 11, its outside is square structure, adopt low-speed WEDM processing method to open upper conical slit pore 41 at the middle part of square structure, be communicated with upper regenerator 10 with upper pulse tube 11, the two ends of upper cool end heat exchanger 12 adopt Vacuum Soldering Technology to be welded to connect with the tube wall of upper pulse tube 11 and upper regenerator 10 respectively, lower cool end heat exchanger 12 ' is arranged between lower regenerator 10 ' and lower pulse tube 11 ', its outside is square structure, adopt low-speed WEDM processing method to open inferior pyramidal slit pore 41 ' at the middle part of square structure, be communicated with lower regenerator 10 ' with lower pulse tube 11 ', the two ends of lower cool end heat exchanger 12 ' adopt Vacuum Soldering Technology to be welded to connect with the tube wall of lower pulse tube 11 ' and lower regenerator 10 ' respectively, on lift support 29 and under lift support 29 ' and all adopt the metal material of higher-strength to make, on lift one end of support 29 and upper brace table plane 25 is connected and fixed, the other end lifts supporting role to upper pulse tube hot end heat exchanger 7, and the two ends of above lifting support 29 all adopt Vacuum Soldering Technology to be welded to connect with brace table on compressor 24 and upper pulse tube hot end heat exchanger 7 respectively, under lift one end of support 29 ' and lower support platform plane 25 ' is connected and fixed, the other end rises lower pulse tube hot end heat exchanger 7 ' and lifts supporting role, under lift support 29 ' two ends all adopt Vacuum Soldering Technology to be welded to connect with compressor lower support platform 25 ' and lower pulse tube hot end heat exchanger 7 ' respectively, upper vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' all adopt stainless steel material to use precise numerical control machine to process, one end of upper vacuum (-tight) housing 13 is closed, its upper open end anchor ring 43 is connected by bolt and the seal with elastometic washer of " O " type with upper brace table plane 25, one end of lower vacuum (-tight) housing 13 ' is closed, its lower open end anchor ring 43 ' is connected by bolt and the seal with elastometic washer of " O " type with lower upper brace table plane 25 ', and upper vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' inside all use vacuum molecular pump to keep being better than 3.0 × 10
-5the vacuum of Pa, upper pulse tube connecting leg 14 and lower pulse tube connecting leg 14 ' all adopt the pure copper tube of internal diameter 1.0 ~ 10.0mm to be made, upper intercommunicating pore 42 in one end of upper pulse tube connecting leg 14 and upper pulse tube hot end heat exchanger 7 uses Vacuum Soldering Technology to weld together, the other end of upper pulse tube connecting leg 14, through upper brace table through hole 40, then uses Vacuum Soldering Technology and upper inertia tube import 30 to weld together, one end of lower pulse tube connecting leg 14 ' and the interior lower intercommunicating pore 42 ' of lower pulse tube hot end heat exchanger 7 ' use Vacuum Soldering Technology to weld together, the other end of lower pulse tube connecting leg 14 ', through lower support platform through hole 40 ', then uses Vacuum Soldering Technology and lower inertia tube import 30 ' to weld together, upper inertia tube 15 and lower inertia tube 15 ' all adopt single hop or multistage long and thin metal copper pipe to make, and upper inertia tube 15 closely coils on compressor right casing 6, and upper inertia tube outlet 31 uses Vacuum Soldering Technology to weld together with upper air reservoir air inlet 32, lower inertia tube 15 ' closely coils on the left outside shell 5 of compressor, and lower inertia tube outlet 31 ' uses Vacuum Soldering Technology to weld together with lower air reservoir air inlet 32 ', upper air reservoir 16 and lower air reservoir 16 ' all adopt the flexible metal material of high thermal conductivity to make, upper air reservoir 16 use precise numerical control machine and Vacuum Soldering Technology to be made into an annular diameters slightly larger than compressor right casing 6 external diameter, outer annular diameter is slightly less than the hollow sealed volume of upper protective cover 17 internal diameter, the inner ring of upper air reservoir 16 is closely buckled on compressor right casing 6, lower air reservoir 16 ' use precise numerical control machine and Vacuum Soldering Technology to be made into an annular diameters slightly larger than compressor left outside shell 6 ' external diameter, outer annular diameter is slightly less than the hollow sealed volume of lower protective cover 17 ' internal diameter, the inner ring of lower air reservoir 16 ' is closely buckled on the left outside shell 5 of compressor, upper protective cover 17 and lower protective cover 17 ' all adopt the metal material of high thermal conductivity to make, precise numerical control machine is used to be made into the closed housing in one end respectively, the upper right side 34 of the openend and bilateral type compressor pedestal 3 of wherein going up protective cover 17 adopts electron beam technology seal welding, covers in wherein by upper inertia tube 15, upper air reservoir 16 and compressor right casing 6, the openend of lower protective cover 17 ' and the side 34 ', upper left of bilateral type compressor pedestal 3 adopt electron beam technology seal welding, are covered in wherein by left outside to lower inertia tube 15 ', lower air reservoir 16 ' and compressor shell 5.
The advantage of this patent is the design feature making full use of straight pulse control cold, inertia tube phase modulation apparatus and linear compressor, separate unit linear compressor can be realized and drive two straight line vascular cold fingers, practical significant at special dimensions such as Aero-Space of paired pulses control cold.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that separate unit linear compressor drives the inertia cast pulse tube refrigerating machine of three kinds of exemplary configurations forms, wherein: (1) is U-shaped vascular cold finger for separate unit linear compressor drives, (2) for separate unit linear compressor drives co-axial pulse tube cold finger, (3) are separate unit linear compressor driving linear pattern vascular cold finger; Wherein 46 is linear compressor, and 47 is regenerator hot end heat exchanger, and 48 is regenerator, and 49 is cool end heat exchanger, and 50 is pulse tube, and 51 is pulse tube hot end heat exchanger, and 52 is inertia tube, and 53 is air reservoir;
Fig. 2 drives the section plan of the structure of two straight line vascular cold fingers for invented separate unit linear compressor, wherein 1 is main basal base, 2 is time pedestal, 3 is bilateral type compressor pedestal, 4 is opposed type linear compressor main member, 5 is the left outside shell of compressor, 6 is compressor right casing, 7 is upper pulse tube hot end heat exchanger, 8 is upper main heat exchanger, 9 is heat exchanger last time, 10 is upper regenerator, 11 is upper pulse tube, 12 is upper cool end heat exchanger, 13 is upper vacuum (-tight) housing, 14 is upper pulse tube connecting leg, 15 is upper inertia tube, 16 is upper air reservoir, 17 is upper protective cover, 22 is venthole on compressor, 23 is compression chamber, 29 on lift support 29, axis centered by 36, 7 ' is lower pulse tube hot end heat exchanger, 8 ' is lower main heat exchanger, 9 ' is next heat exchanger, 10 ' is lower regenerator, 11 ' is lower pulse tube, 12 ' is lower cool end heat exchanger, 13 ' is lower vacuum (-tight) housing, 14 ' is lower pulse tube connecting leg, 15 ' is lower inertia tube, 16 ' is lower air reservoir, 17 ' is lower protective cover, 22 ' is compressor lower production well, 29 ' be under lift support,
Fig. 3 is the generalized section that main basal base 1 and time pedestal 2 support opposed type linear compressor, and wherein 18 is time pedestal lower surface, and 19 is main basal base upper surface;
Fig. 4 is the schematic perspective view of secondary pedestal 2, and wherein 20 for supporting cambered surface;
Fig. 5 (1) and Fig. 5 (2) is respectively section plan and the schematic perspective view of bilateral type compressor pedestal 3, wherein 24 is brace table on compressor, 25 is brace table plane, 26 is pedestal lower left side, 27 is pedestal lower right sides, and 34 is upper right side, and 34 ' is side, upper left, 40 is upper brace table through hole, and 40 ' is lower support platform through hole;
Fig. 6 (1) is upper regenerator 10, upper pulse tube 11, the assembled sectional view of upper cool end heat exchanger 12 and upper pulse tube hot end heat exchanger 7, Fig. 6 (2) is lower regenerator 10 ', lower pulse tube 11 ', the assembled sectional view of lower cool end heat exchanger 12 ' and lower pulse tube hot end heat exchanger 7 ', wherein 21 is heat exchanger last time lower surface, 28 is upper hopper shape duct, 35 is upper cylindrical slot heat exchanging body, 37 is upper cold accumulator, 38 is upper cold-storage filler, 41 is upper conical slit pore, 42 is upper intercommunicating pore, 43 is upper connection headkerchief, 44 is upper hopper under shed, 21 ' is next heat exchanger lower surface, 28 ' is lower infundibulate duct, 35 ' is lower cylindrical slot heat exchanging body, 37 ' is lower cold accumulator, 38 ' is lower cold-storage filler, 41 ' is inferior pyramidal slit pore, 42 ' is lower intercommunicating pore, 43 ' is lower connection headkerchief, 44 ' is lower funnel under shed,
Fig. 7 (1) and Fig. 7 (2) is respectively the schematic perspective view of vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ', and wherein 43 is upper open end anchor ring, and 43 ' is lower open end anchor ring;
Fig. 8 (1) and Fig. 8 (2) is respectively the schematic perspective view of inertia tube 15 and lower inertia tube 15 ', and wherein 30 is upper inertia tube import, and 31 is the outlet of upper inertia tube, and 30 ' is lower inertia tube import, and 31 ' exports for lower inertia tube;
Fig. 9 (1) and Fig. 9 (2) is respectively the schematic perspective view of air reservoir 16 and lower air reservoir 16 ', and wherein 32 is upper air reservoir air inlet, and 33 is upper air reservoir inner ring surface, and 32 ' is lower air reservoir air inlet, and 33 ' is lower air reservoir inner ring surface.
Detailed description of the invention
Be described in further detail below in conjunction with the detailed description of the invention of drawings and Examples to this patent:
Fig. 2 drives the section plan of the structure of two straight line vascular cold fingers for invented separate unit linear compressor; Fig. 3 is the generalized section that main basal base 1 and time pedestal 2 support opposed type linear compressor; Fig. 4 is the schematic perspective view of secondary pedestal 2; Fig. 5 (1) and Fig. 5 (2) is respectively section plan and the schematic perspective view of bilateral type compressor pedestal 3; Fig. 6 (1) is upper regenerator 10, the assembled sectional view of upper pulse tube 11, upper cool end heat exchanger 12 and upper pulse tube hot end heat exchanger 7, and Fig. 6 (2) is lower regenerator 10 ', the assembled sectional view of lower pulse tube 11 ', lower cool end heat exchanger 12 ' and lower pulse tube hot end heat exchanger 7 '; Fig. 7 (1) and Fig. 7 (2) is respectively the schematic perspective view of vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 '; Fig. 8 (1) and Fig. 8 (2) is respectively the schematic perspective view of inertia tube 15 and lower inertia tube 15 '; Fig. 9 (1) and Fig. 9 (2) is respectively the schematic perspective view of air reservoir 16 and lower air reservoir 16 ';
The separate unit linear compressor invented drives the structure of two straight line vascular cold fingers by main basal base 1, secondary pedestal 2, bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor, compressor right casing 6, upper pulse tube hot end heat exchanger 7, upper main heat exchanger 8, last time heat exchanger 9, upper regenerator 10, upper pulse tube 11, upper cool end heat exchanger 12, upper vacuum (-tight) housing 13, upper pulse tube connecting leg 14, upper inertia tube 15, upper air reservoir 16, upper protective cover 17, on lift support 29 and lower pulse tube hot end heat exchanger 7 ', lower main heat exchanger 8 ', next heat exchanger 9 ', lower regenerator 10 ', lower pulse tube 11 ', lower cool end heat exchanger 12 ', lower vacuum (-tight) housing 13 ', lower pulse tube connecting leg 14 ', lower inertia tube 15 ', lower air reservoir 16 ', lower protective cover 17 ', under lift support 29 ' form, it is characterized in that, main basal base 1 is as total supporting base of total, the lower end of secondary pedestal 2 processes time pedestal lower surface 18, and is supported on main basal base upper surface 19, and the upper end of secondary pedestal 2 processes and supports cambered surface 20, supports cambered surface 20 and is supported on the downside of the shell surface of bilateral type compressor pedestal 3, bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor and compressor right casing 6 form an opposed type linear compressor, this compressor adopts double-piston opposed formula structure, and left and right two parts are axis 36 full symmetric centrally, venthole 22 and compressor lower production well 22 ' on compressor is vertically opened respectively along central authorities in the both sides up and down of bilateral type compressor pedestal 3, realize the connection between the compression chamber 23 of opposed type linear compressor and upper hopper shape duct 28 by venthole on compressor 22, realize the connection between the compression chamber 23 of opposed type linear compressor and lower infundibulate duct 28 ' by compressor lower production well 22 ', brace table 24 and compressor lower support platform 24 ' on compressor is processed respectively in the both sides of bilateral type compressor pedestal 3, on compressor, brace table 24 carries out contact connection support by upper brace table plane 25 to upper main heat exchanger 8, and compressor lower support platform 24 ' carries out contact by lower support platform plane 25 ' to lower main heat exchanger 8 ' and connects support, on the compressor brace table 24 and compressor lower support platform 24 ' process brace table through hole 40 and lower support platform through hole 40 ' respectively, the openend of the left outside shell 5 of compressor and pedestal lower left side 26 seal welding of bilateral type compressor pedestal 3, the openend of compressor right casing 6 and pedestal lower right sides 27 seal welding of bilateral type compressor pedestal 3, heat exchanger 9 to insert with one heart within upper main heat exchanger 8 and to be welded to connect last time, and next heat exchanger 9 ' inserts with one heart and is welded to connect within main heat exchanger 8 ' down, on compressor, venthole 22 is connected directly between on heat exchanger 11 last time, and is communicated with upper regenerator 10 by the upper hopper shape duct 28 in last time heat exchanger 11, compressor lower production well 22 ' is connected directly between on next heat exchanger 11 ', and is communicated with lower regenerator 10 ' by the lower infundibulate duct 28 ' that next heat exchanger 11 ' is interior, upper regenerator 10 to insert with one heart within main heat exchanger 8 and is welded to connect, upper cool end heat exchanger 12 is arranged at the junction of regenerator 10 and upper pulse tube 11, it is logical structure in a square, upper conical slit pore 41 is opened in left and right, be communicated with upper pulse tube 11 with upper regenerator 10 respectively, upper pulse tube 11 and upper regenerator 10 are welded to connect in the cool end heat exchanger upper and lower with one heart vertical insertion 12 respectively, on upper pulse tube 11 top, pulse tube hot end heat exchanger 7 is set, upper pulse tube 11 vertically inserts upper pulse tube hot end heat exchanger 7 inside and is welded to connect, upper pulse tube hot end heat exchanger 7 is a special-shaped composite construction, the upper connection headkerchief 43 opening upper intercommunicating pore 42 by upper cylindrical slot heat exchanging body 35 and inside of an intensive cutting slit from inside forms, upper cylindrical slot heat exchanging body 35 and upper connection headkerchief 43 weld together the upper pulse tube hot end heat exchanger 7 of composition, on lift one end of support 29 and upper brace table plane 25 is connected and fixed, the other end lifting support 29 lifts supporting role to upper pulse tube hot end heat exchanger 7, lower regenerator 10 ' to insert with one heart within lower main heat exchanger 8 ' and is welded to connect, lower cool end heat exchanger 12 ' is arranged at the junction of lower regenerator 10 ' and lower pulse tube 11 ', it is logical structure in a square, inferior pyramidal slit pore 41 ' is opened in left and right, be communicated with lower pulse tube 11 ' with lower regenerator 10 ' respectively, lower pulse tube 11 ' and lower regenerator 10 ' are interior and be welded to connect from cool end heat exchanger 12 ' upper and lower with one heart vertical insertion respectively, on lower pulse tube 11 ' top, lower pulse tube hot end heat exchanger 7 ' is set, lower pulse tube 11 ' vertically inserts lower pulse tube hot end heat exchanger 7 ' inside and is welded to connect, lower pulse tube hot end heat exchanger 7 ' is a special-shaped composite construction, the upper connection headkerchief 43 ' opening lower intercommunicating pore 42 ' by lower cylindrical slot heat exchanging body 35 ' and inside of an intensive cutting slit from inside forms, lower cylindrical slot heat exchanging body 35 ' and lower connection headkerchief 43 ' weld together the lower pulse tube hot end heat exchanger 7 ' of composition, under lift one end of support 29 ' and lower support platform plane 25 ' is connected and fixed, under lift support 29 ' the other end lower pulse tube hot end heat exchanger 7 ' risen lift supporting role, one end of upper pulse tube connecting leg 14 is connected with upper pulse tube hot end heat exchanger 7, and be communicated with upper pulse tube 11 by the upper intercommunicating pore 42 in upper pulse tube hot end heat exchanger 7 and upper cylindrical slot heat exchanging body 35, the other end of upper pulse tube connecting leg 14, through upper brace table through hole 40, is then communicated with upper inertia tube import 30, one end of lower pulse tube connecting leg 14 ' is connected with lower pulse tube hot end heat exchanger 7 ', and be communicated with lower pulse tube 11 ' by the interior lower intercommunicating pore 42 ' of lower pulse tube hot end heat exchanger 7 ' and lower cylindrical slot heat exchanging body 35 ', the other end of lower pulse tube connecting leg 14 ', through lower support platform through hole 40 ', is then communicated with lower inertia tube import 30 ', upper inertia tube 15 and lower inertia tube 15 ' all adopt single hop or multistage long and thin metal copper pipe to make, and upper inertia tube 15 closely coils on compressor right casing 6, and upper inertia tube outlet 31 uses Vacuum Soldering Technology to weld together with upper air reservoir air inlet 32, lower inertia tube 15 ' closely coils on the left outside shell 5 of compressor, and lower inertia tube outlet 31 ' uses Vacuum Soldering Technology to weld together with lower air reservoir air inlet 32 ', upper air reservoir 16 is the hollow sealed volume of an annular diameters slightly larger than compressor right casing 6 external diameter, and upper air reservoir inner ring surface 33 is held on compressor right casing 6, lower air reservoir 16 is the hollow sealed volume of an annular diameters slightly larger than compressor left outside shell 5 external diameter, and lower air reservoir inner ring surface 33 ' is held on the left outside shell 5 of compressor, working gas is by bilateral type compressor pedestal 3, opposed type linear compressor main member 4, the left outside shell 5 of compressor, compressor right casing 6, upper main heat exchanger 8, last time heat exchanger 9, upper regenerator 10, upper pulse tube 11, upper cool end heat exchanger 12, upper pulse tube hot end heat exchanger 7, upper pulse tube connecting leg 14, upper inertia tube 15, upper air reservoir 16 and lower main heat exchanger 8 ', next heat exchanger 9 ', lower regenerator 10 ', lower pulse tube 11 ', lower cool end heat exchanger 12 ', lower pulse tube hot end heat exchanger 7 ', lower pulse tube connecting leg 14 ', lower inertia tube 15 ', reciprocating vibration in the confined space that lower air reservoir 16 ' forms, the case that upper protective cover 17 is closed for one end, upper right side 34 seal welding of its openend and bilateral type compressor pedestal 3, covers in wherein by upper inertia tube 15, upper air reservoir 16 and compressor right casing 6, the case that lower protective cover 17 ' is closed for one end, side, the upper left 34 ' seal welding of its openend and bilateral type compressor pedestal 3, covers in wherein by left outside to lower inertia tube 15 ', lower air reservoir 16 ' and compressor shell 5, thus a kind of separate unit linear compressor of common formation drives the structure of two straight line vascular cold fingers.
The separate unit linear compressor invented drives the structure of two straight line vascular cold fingers to manufacture by the following method: the high thermal conductivity metal plate that main basal base 1 is 30mm by thickness is made, it is 4.0 μm that the flatness of dull and stereotyped upper and lower surface all uses fine turning lathe, milling machine and grinding machine to process guarantee, flatbed horizontal is placed, and carries out vertical support to total, secondary pedestal 2 is made by high-thermal conductive metal material, the flatness of secondary pedestal lower surface 18 uses fine turning lathe, milling machine and grinding machine processing guarantee to be 4.0 μm, supporting cambered surface 20 uses the method for low-speed WEDM to process, and matches with cambered surface on the downside of the shell surface of bilateral type compressor pedestal 3, bilateral type compressor pedestal 3 adopts the metal material of high thermal conductivity and high strength to make, its both sides adopt precise numerical control machine to process brace table 24 and compressor lower support platform 24 ' on compressor respectively, the outer surface of the two uses fine turning lathe, milling machine and grinding machine to process brace table plane 25 and lower support platform plane 25 ' respectively, on the compressor brace table 24 and compressor lower support platform 24 ' uses drilling machine to process brace table through hole 40 and lower support platform through hole 40 ' respectively, venthole 22 and all use wire cutting method cutting to form with the upper hopper under shed 44 in the upper hopper shape duct 28 in last time heat exchanger 9 on compressor, ensure that on compressor, venthole 22 is all identical with the aperture of upper hopper under shed 44, worst error is no more than 5.0 μm, and when ensureing to connect on compressor the hole heart of venthole 22 and upper hopper under shed 44 point-blank, worst error is no more than 10.0 μm, being communicated with between the compression chamber 23 of opposed type linear compressor and upper regenerator 10 is realized with upper hopper shape duct 28 by venthole on compressor 22, the lower funnel under shed 44 ' in compressor lower production well 22 ' and the lower infundibulate duct 28 ' interior with next heat exchanger 9 ' all uses wire cutting method cutting to form, ensure that compressor lower production well 22 ' is all identical with the aperture of lower funnel under shed 44 ', worst error is no more than 5.0 μm, and when ensureing to connect the hole heart of compressor lower production well 22 ' and lower funnel under shed 44 ' point-blank, worst error is no more than 10.0 μm, being communicated with between the compression chamber 23 of opposed type linear compressor and lower regenerator 10 ' is realized with lower infundibulate duct 28 ' by compressor lower production well 22 ', upper pulse tube 11 and lower pulse tube 11 ' all adopt the stainless steel of low heat conductivity or titanium alloy material to make, and adopt low-speed WEDM method to process, inwall grinding and polishing, ensure that inwall fineness is better than 0.5 μm, upper regenerator 10 by upper cold accumulator 37 and be filled in upper cold accumulator 37 inside disc on cold-storage filler 38 form, lower regenerator 10 ' by lower cold accumulator 37 ' and under being filled in the inner disc of lower cold accumulator 37 ' cold-storage filler 38 ' form, wherein going up cold accumulator 37 and lower cold accumulator 37 ' all adopts the stainless steel of low heat conductivity or titanium alloy material to make, low-speed WEDM method is adopted to process, inwall grinding and polishing, all ensure that inwall fineness is better than 2.0 μm, upper cold-storage filler 38 and lower cold-storage filler 38 ' are formed by the silk screen of high specific heat or the tight filling of sphere, upper main heat exchanger 8 and last time heat exchanger 9 all adopt the high-purity oxygen-free copper material of high thermal conductivity to make, wherein going up main heat exchanger 8 inside uses low-speed WEDM technology to be processed into a hollow structure, last time, heat exchanger 9 inserted in upper main heat exchanger 8 with one heart, therebetween joint face uses Vacuum Soldering Technology welding, heat exchanger last time lower surface 21 and upper brace table plane 25 are fitted closely, use bolt to connect therebetween, precision machine tool was used to process upper hopper shape duct 28 with the position of upper regenerator 10 vertical concentric in last time in heat exchanger 9, and use honing machine grinding inwall, make its surface smoothness all higher than 0.01mm, the upper hopper opening inside diameter 0.02mm larger than the external diameter of upper regenerator 10 in upper hopper shape duct 28, in the insertion with one heart of upper regenerator 10 within main heat exchanger 8, insertion depth is 3.0mm, and the contact surface inserting position all uses Vacuum Soldering Technology to weld, lower main heat exchanger 8 ' and next heat exchanger 9 ' all adopt the high-purity oxygen-free copper material of high thermal conductivity to make, main heat exchanger 8 ' inside is wherein descended to use low-speed WEDM technology to be processed into a hollow structure, next time, heat exchanger 9 ' inserted in lower main heat exchanger 8 ' with one heart, therebetween joint face uses Vacuum Soldering Technology welding, fitting closely with lower support platform plane 25 ' in next heat exchanger lower surface 21 ', uses bolt to connect therebetween, precision machine tool is used to process lower infundibulate duct 28 ' in the position of the interior and lower regenerator 10 ' vertical concentric of next heat exchanger 9 ', and use honing machine grinding inwall, make its surface smoothness all higher than 0.01mm, the upper hopper opening inside diameter 0.03mm larger than the external diameter of lower regenerator 10 ' in lower infundibulate duct 28 ', under the insertion with one heart of lower regenerator 10 ' within main heat exchanger 8 ', insertion depth is 3.0mm, and the contact surface inserting position all uses Vacuum Soldering Technology to weld, upper cool end heat exchanger 12 and lower cool end heat exchanger 12 ' make by the oxygenless copper material of high thermal conductivity, upper cool end heat exchanger 12 is arranged between regenerator 10 and upper pulse tube 11, its outside is square structure, adopt low-speed WEDM processing method to open upper conical slit pore 41 at the middle part of square structure, be communicated with upper regenerator 10 with upper pulse tube 11, the two ends of upper cool end heat exchanger 12 adopt Vacuum Soldering Technology to be welded to connect with the tube wall of upper pulse tube 11 and upper regenerator 10 respectively, lower cool end heat exchanger 12 ' is arranged between lower regenerator 10 ' and lower pulse tube 11 ', its outside is square structure, adopt low-speed WEDM processing method to open inferior pyramidal slit pore 41 ' at the middle part of square structure, be communicated with lower regenerator 10 ' with lower pulse tube 11 ', the two ends of lower cool end heat exchanger 12 ' adopt Vacuum Soldering Technology to be welded to connect with the tube wall of lower pulse tube 11 ' and lower regenerator 10 ' respectively, on lift support 29 and under lift support 29 ' and all adopt the metal material of higher-strength to make, on lift one end of support 29 and upper brace table plane 25 is connected and fixed, the other end lifts supporting role to upper pulse tube hot end heat exchanger 7, and the two ends of above lifting support 29 all adopt Vacuum Soldering Technology to be welded to connect with brace table on compressor 24 and upper pulse tube hot end heat exchanger 7 respectively, under lift one end of support 29 ' and lower support platform plane 25 ' is connected and fixed, the other end rises lower pulse tube hot end heat exchanger 7 ' and lifts supporting role, under lift support 29 ' two ends all adopt Vacuum Soldering Technology to be welded to connect with compressor lower support platform 25 ' and lower pulse tube hot end heat exchanger 7 ' respectively, upper vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' all adopt stainless steel material to use precise numerical control machine to process, one end of upper vacuum (-tight) housing 13 is closed, its upper open end anchor ring 43 is connected by bolt and the seal with elastometic washer of " O " type with upper brace table plane 25, one end of lower vacuum (-tight) housing 13 ' is closed, its lower open end anchor ring 43 ' is connected by bolt and the seal with elastometic washer of " O " type with lower upper brace table plane 25 ', and upper vacuum (-tight) housing 13 and lower vacuum (-tight) housing 13 ' inside all use vacuum molecular pump to keep being better than 3.0 × 10
-5the vacuum of Pa, upper pulse tube connecting leg 14 and lower pulse tube connecting leg 14 ' all adopt the pure copper tube of internal diameter 6.0mm to be made, upper intercommunicating pore 42 in one end of upper pulse tube connecting leg 14 and upper pulse tube hot end heat exchanger 7 uses Vacuum Soldering Technology to weld together, the other end of upper pulse tube connecting leg 14, through upper brace table through hole 40, then uses Vacuum Soldering Technology and upper inertia tube import 30 to weld together, one end of lower pulse tube connecting leg 14 ' and the interior lower intercommunicating pore 42 ' of lower pulse tube hot end heat exchanger 7 ' use Vacuum Soldering Technology to weld together, the other end of lower pulse tube connecting leg 14 ', through lower support platform through hole 40 ', then uses Vacuum Soldering Technology and lower inertia tube import 30 ' to weld together, upper inertia tube 15 and lower inertia tube 15 ' all adopt single hop or multistage long and thin metal copper pipe to make, and upper inertia tube 15 closely coils on compressor right casing 6, and upper inertia tube outlet 31 uses Vacuum Soldering Technology to weld together with upper air reservoir air inlet 32, lower inertia tube 15 ' closely coils on the left outside shell 5 of compressor, and lower inertia tube outlet 31 ' uses Vacuum Soldering Technology to weld together with lower air reservoir air inlet 32 ', upper air reservoir 16 and lower air reservoir 16 ' all adopt the flexible metal material of high thermal conductivity to make, upper air reservoir 16 use precise numerical control machine and Vacuum Soldering Technology to be made into an annular diameters slightly larger than compressor right casing 6 external diameter, outer annular diameter is slightly less than the hollow sealed volume of upper protective cover 17 internal diameter, the inner ring of upper air reservoir 16 is closely buckled on compressor right casing 6, lower air reservoir 16 ' use precise numerical control machine and Vacuum Soldering Technology to be made into an annular diameters slightly larger than compressor left outside shell 6 ' external diameter, outer annular diameter is slightly less than the hollow sealed volume of lower protective cover 17 ' internal diameter, the inner ring of lower air reservoir 16 ' is closely buckled on the left outside shell 5 of compressor, upper protective cover 17 and lower protective cover 17 ' all adopt the metal material of high thermal conductivity to make, precise numerical control machine is used to be made into the closed housing in one end respectively, the upper right side 34 of the openend and bilateral type compressor pedestal 3 of wherein going up protective cover 17 adopts electron beam technology seal welding, covers in wherein by upper inertia tube 15, upper air reservoir 16 and compressor right casing 6, the openend of lower protective cover 17 ' and the side 34 ', upper left of bilateral type compressor pedestal 3 adopt electron beam technology seal welding, are covered in wherein by left outside to lower inertia tube 15 ', lower air reservoir 16 ' and compressor shell 5.
Claims (1)
1. separate unit linear compressor drives a structure for two straight line vascular cold fingers, comprises main basal base (1), secondary pedestal (2), bilateral type compressor pedestal (3), opposed type linear compressor main member (4), the left outside shell of compressor (5), compressor right casing (6), upper pulse tube hot end heat exchanger (7), upper main heat exchanger (8), heat exchanger last time (9), upper regenerator (10), upper pulse tube (11), upper cool end heat exchanger (12), upper vacuum (-tight) housing (13), upper pulse tube connecting leg (14), upper inertia tube (15), upper air reservoir (16), upper protective cover (17), on lift support (29) and lower pulse tube hot end heat exchanger (7 '), lower main heat exchanger (8 '), heat exchanger next time (9 '), lower regenerator (10 '), lower pulse tube (11 '), lower cool end heat exchanger (12 '), lower vacuum (-tight) housing (13 '), lower pulse tube connecting leg (14 '), lower inertia tube (15 '), lower air reservoir (16 '), lower protective cover (17 ') and under lift support (29 '), it is characterized in that, main basal base (1) is as total supporting base of total, the lower end of secondary pedestal (2) processes time pedestal lower surface (18), and be supported on main basal base upper surface (19), the upper end of secondary pedestal (2) processes and supports cambered surface (20), supports cambered surface (20) and is supported on the downside of the shell surface of bilateral type compressor pedestal (3), bilateral type compressor pedestal (3), opposed type linear compressor main member (4), the left outside shell of compressor (5) and compressor right casing (6) form an opposed type linear compressor, this compressor adopts double-piston opposed formula structure, and left and right two parts are axis (36) full symmetric centrally, venthole on compressor (22) and compressor lower production well (22 ') is vertically opened respectively along central authorities in the both sides up and down of bilateral type compressor pedestal (3), realize the connection between the compression chamber (23) of opposed type linear compressor and upper hopper shape duct (28) by venthole on compressor (22), realize the connection between the compression chamber (23) of opposed type linear compressor and lower infundibulate duct (28 ') by compressor lower production well (22 '), brace table on compressor (24) and compressor lower support platform (24 ') is processed respectively in the both sides of bilateral type compressor pedestal (3), on compressor, brace table (24) carries out contact connection support by upper brace table plane (25) to upper main heat exchanger (8), and compressor lower support platform (24 ') is carried out contact by lower support platform plane (25 ') to lower main heat exchanger (8 ') and connected support, on the compressor brace table (24) and compressor lower support platform (24 ') process brace table through hole (40) and lower support platform through hole (40 ') respectively, the openend of the left outside shell of compressor (5) and pedestal lower left side (26) seal welding of bilateral type compressor pedestal (3), the openend of compressor right casing (6) and pedestal lower right sides (27) seal welding of bilateral type compressor pedestal (3), inserting with one heart heat exchanger last time (9) within main heat exchanger (8) and to be welded to connect, next heat exchanger (9 ') to be inserted with one heart within lower main heat exchanger (8 ') and is welded to connect, on compressor, venthole (22) is connected directly between on heat exchanger last time (11), and is communicated with upper regenerator (10) by the upper hopper shape duct (28) in heat exchanger last time (11), compressor lower production well (22 ') is connected directly between on next heat exchanger (11 '), and is communicated with lower regenerator (10 ') by the lower infundibulate duct (28 ') in next heat exchanger (11 '), upper regenerator (10) to insert with one heart within main heat exchanger (8) and is welded to connect, upper cool end heat exchanger (12) is arranged at the junction of regenerator (10) and upper pulse tube (11), it is logical structure in a square, upper conical slit pore (41) is opened in left and right, be communicated with upper pulse tube (11) with upper regenerator (10) respectively, upper pulse tube (11) and upper regenerator (10) are respectively from being welded to connect in cool end heat exchanger (12) upper and lower with one heart vertical insertion, on upper pulse tube (11) top, upper pulse tube hot end heat exchanger (7) is set, upper pulse tube (11) vertically inserts upper pulse tube hot end heat exchanger (7) inside and is welded to connect, upper pulse tube hot end heat exchanger (7) is a special-shaped composite construction, the upper connection headkerchief (43) of opening upper intercommunicating pore (42) by upper cylindrical slot heat exchanging body (35) and inside of an intensive cutting slit from inside forms, upper cylindrical slot heat exchanging body (35) and upper connection headkerchief (43) weld together the upper pulse tube hot end heat exchanger (7) of composition, on lift one end of support (29) and upper brace table plane (25) is connected and fixed, the other end lifting support (29) lifts supporting role to upper pulse tube hot end heat exchanger (7) rising, lower regenerator (10 ') to be inserted with one heart within lower main heat exchanger (8 ') and is welded to connect, lower cool end heat exchanger (12 ') is arranged at the junction of lower regenerator (10 ') and lower pulse tube (11 '), it is logical structure in a square, inferior pyramidal slit pore (41 ') is opened in left and right, be communicated with lower pulse tube (11 ') with lower regenerator (10 ') respectively, lower pulse tube (11 ') and lower regenerator (10 ') are respectively from being welded to connect in cool end heat exchanger (12 ') upper and lower with one heart vertical insertion, on lower pulse tube (11 ') top, lower pulse tube hot end heat exchanger (7 ') is set, lower pulse tube (11 ') is vertically inserted lower pulse tube hot end heat exchanger (7 ') inside and is welded to connect, lower pulse tube hot end heat exchanger (7 ') is a special-shaped composite construction, the upper connection headkerchief (43 ') of opening lower intercommunicating pore (42 ') by lower cylindrical slot heat exchanging body (35 ') and inside of an intensive cutting slit from inside forms, lower cylindrical slot heat exchanging body (35 ') and lower connection headkerchief (43 ') weld together the lower pulse tube hot end heat exchanger (7 ') of composition, under lift one end of support (29 ') and lower support platform plane (25 ') is connected and fixed, under lift support (29 ') the other end supporting role is lifted to lower pulse tube hot end heat exchanger (7 ') rising, one end of upper pulse tube connecting leg (14) is connected with upper pulse tube hot end heat exchanger (7), and be communicated with upper pulse tube (11) by the upper intercommunicating pore (42) in upper pulse tube hot end heat exchanger (7) and upper cylindrical slot heat exchanging body (35), the other end of upper pulse tube connecting leg (14), through upper brace table through hole (40), is then communicated with upper inertia tube import (30), one end of lower pulse tube connecting leg (14 ') is connected with lower pulse tube hot end heat exchanger (7 '), and be communicated with lower pulse tube (11 ') by the lower intercommunicating pore (42 ') in lower pulse tube hot end heat exchanger (7 ') and lower cylindrical slot heat exchanging body (35 '), the other end of lower pulse tube connecting leg (14 '), through lower support platform through hole (40 '), is then communicated with lower inertia tube import (30 '), upper inertia tube (15) and lower inertia tube (15 ') all adopt single hop or multistage long and thin metal copper pipe to make, upper inertia tube (15) closely coils on compressor right casing (6), and upper inertia tube outlet (31) uses Vacuum Soldering Technology to weld together with upper air reservoir air inlet (32), lower inertia tube (15 ') is closely coiled on the left outside shell of compressor (5), and lower inertia tube outlet (31 ') uses Vacuum Soldering Technology to weld together with lower air reservoir air inlet (32 '), upper air reservoir (16) is the hollow sealed volume of an annular diameters slightly larger than compressor right casing (6) external diameter, and upper air reservoir inner ring surface (33) is held on compressor right casing (6), lower air reservoir (16) is the hollow sealed volume of an annular diameters slightly larger than the left outside shell of compressor (5) external diameter, and lower air reservoir inner ring surface (33 ') is held on the left outside shell of compressor (5), working gas is by bilateral type compressor pedestal (3), opposed type linear compressor main member (4), the left outside shell of compressor (5), compressor right casing (6), upper main heat exchanger (8), heat exchanger last time (9), upper regenerator (10), upper pulse tube (11), upper cool end heat exchanger (12), upper pulse tube hot end heat exchanger (7), upper pulse tube connecting leg (14), upper inertia tube (15), upper air reservoir (16) and lower main heat exchanger (8 '), heat exchanger next time (9 '), lower regenerator (10 '), lower pulse tube (11 '), lower cool end heat exchanger (12 '), lower pulse tube hot end heat exchanger (7 '), lower pulse tube connecting leg (14 '), lower inertia tube (15 '), reciprocating vibration in the confined space that lower air reservoir (16 ') forms, the case that upper protective cover (17) is closed for one end, upper right side (34) seal welding of its openend and bilateral type compressor pedestal (3), covers in wherein by upper inertia tube (15), upper air reservoir (16) and compressor right casing (6), the case that lower protective cover (17 ') is closed for one end, side, upper left (34 ') seal welding of its openend and bilateral type compressor pedestal (3), lower inertia tube (15 '), lower air reservoir (16 ') and the left outside shell of compressor (5) are covered in wherein, thus a kind of separate unit linear compressor of common formation drives the structure of two straight line vascular cold fingers.
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| CN201420310544.3U CN204084933U (en) | 2014-01-17 | 2014-06-12 | Separate unit linear compressor drives the structure of two straight line vascular cold fingers |
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| CN104034081A (en) * | 2014-01-17 | 2014-09-10 | 中国科学院上海技术物理研究所 | Structure of two linear pulse tube cryocoolers driven by single linear compressor and manufacturing method thereof |
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| CN104457009B (en) * | 2014-11-27 | 2016-08-24 | 中科力函（深圳）低温技术有限公司 | A kind of low temperature pulse tubes refrigeration machine using mixed structure |
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| CN101832675B (en) * | 2010-04-30 | 2013-06-12 | 浙江大学 | Pulse tube refrigerator with elastic air reservoir |
| CN201973950U (en) * | 2010-11-26 | 2011-09-14 | 中国科学院上海技术物理研究所 | Integrated type slit cold head suitable for U-shaped pulse tube refrigerator |
| CN102042711B (en) * | 2010-11-26 | 2012-09-26 | 中国科学院上海技术物理研究所 | Integrated slit cold head of U-shaped pulse tube refrigerating machine and manufacturing method |
| CN102735088B (en) * | 2012-06-25 | 2013-12-04 | 中国科学院上海技术物理研究所 | Conical slit-type hot end heat exchanger of coaxial pulse tube refrigerator and manufacturing method |
| CN103017394B (en) * | 2012-11-30 | 2015-01-07 | 中国科学院上海技术物理研究所 | Integrated tapered slit cold-end heat exchanger of linear pulse tube refrigerator and manufacturing method |
| CN103307798B (en) * | 2013-06-21 | 2015-02-18 | 中国科学院上海技术物理研究所 | Coaxial pulse tube refrigerator and infrared device compact coupled structure and manufacturing method |
| CN204084933U (en) * | 2014-01-17 | 2015-01-07 | 中国科学院上海技术物理研究所 | Separate unit linear compressor drives the structure of two straight line vascular cold fingers |
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2014
- 2014-06-12 CN CN201420310544.3U patent/CN204084933U/en not_active Withdrawn - After Issue
- 2014-06-12 CN CN201410258938.3A patent/CN104034081B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034081A (en) * | 2014-01-17 | 2014-09-10 | 中国科学院上海技术物理研究所 | Structure of two linear pulse tube cryocoolers driven by single linear compressor and manufacturing method thereof |
| CN104034081B (en) * | 2014-01-17 | 2016-05-18 | 中国科学院上海技术物理研究所 | Separate unit linear compressor drives structure and the manufacture method of two straight line vascular cold fingers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104034081B (en) | 2016-05-18 |
| CN104034081A (en) | 2014-09-10 |
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