A kind of magnet attemperating unit for magnetic resonance detectionTechnical field
The present invention relates to a kind of magnet attemperating unit for magnetic resonance detection, belong to nuclear magnetic resonance technique field.
Background technology
Nuclear magnetic resonance, NMR (Nuclear Magnetic Resonance is called for short NMR) refers to that the atomic nucleus of non-zero magnetic moment is being ledUnder magnetic field and radio-frequency field perpendicular acting, energy level generation Zeeman splitting of spinning, atomic nucleus absorbs a kind of physical process of radio-frequency (RF) energy,There are numerous advantages that other detection means such as Non-Destructive Testing, detection abundant information is incomparable.Nuclear magnetic resonance technique extensively shouldFor chemical structure analysis, molecular dynamics, diagnosing image and other field.In recent years, the nuclear magnetic resonance, NMR analyzed it is applied toAnalyser towards low cost, in high precision, portable direction develops.
For using the magnetic resonance detection device of permanent magnet, the magnetic field intensity of magnetic field of permanent magnet can be along with ambient temperatureChange and change, thus have influence on the detection of NMR signal.Nuclear magnetic resonance technique range of application is very wide, covers lifeThe various fields such as thing, medical science, chemistry, food, oil, polymer, safety check, building and the art work.But the shadow that temperature is to magnetRing, can not ignore.Traditional nuclear magnetic resonance equipment, poor temperature uniformity, heat insulation effect is bad, and bulky, manufactureHigh with maintenance cost, the operating of whole device and in-site installation are extremely difficult and complicated, and this will limit removable behaviour significantlyWork, the exploitativeness of thing Site Detection to be checked.Therefore, use easy temperature control system to ensure that the operating ambient temperature of magnet isRequisite.
Summary of the invention
The technical problem to be solved is to provide one, and heat-insulating property is low, temperature distribution evenness is poor, device is multipleThe problems such as miscellaneous heaviness are for the magnet attemperating unit of magnetic resonance detection.
The present invention is to solve above-mentioned technical problem by the following technical solutions: the present invention devises one for nuclear-magnetism altogetherShake the magnet attemperating unit detected, including outter box top cover, inner bag box body top cover, inner bag closure head insulation material, wall of inner container insulationMaterial, base plate, magnet, temperature controller, least one set attemperating unit, and the outter box that all opens wide of top and bottom and inner bag box body；ItsIn, the size of bottom surface open ports of outter box adapts with the size of base plate, and outter box bottom surface open ports is fixedly installed on base plateUpper surface on, the size of outter box top cover adapts with the size of outter box opened top mouth, wherein the one of outter box top coverLimit is flexibly connected with the corresponding sides of outter box opened top mouth, outter box top cover with its with outter box opened top mouth company limit beAxle rotates, it is achieved arranges in the unlatching of outter box opened top mouth and Guan Bi, and outter box top cover and runs through upper and lower surfaceCrust sample hole；On inner bag box body horizontal plane be smaller in size than on outter box horizontal plane size, and the height of inner bag box bodyBeing not more than the height of outter box, inner bag box body is positioned in outter box, and inner bag box bottom open ports is fixedly installed on base plateOn upper surface, the size of inner bag box body top cover adapts with the size of inner bag box body opened top mouth, its of inner bag box body top coverMiddle while being flexibly connected with the corresponding sides of inner bag box body opened top mouth, inner bag box body top cover is arranged and runs through upper and lower surface, andThe inner bag sample well corresponding with crust sample hole site；Inner bag closure head insulation material is covered in the following table of inner bag box body top coverArranging the through hole corresponding with inner bag sample well on face, and inner bag closure head insulation material, wall of inner container insulation material is covered in inner bagThe side of box body；Magnet is positioned at inner bag box body, and magnet is arranged at the upper surface of base plate；Each group attemperating unit includes respectivelyFan, heater, temperature sensor, solid-state relay, temperature controller respectively with the fan in each group of attemperating unit, solid-state relayBeing connected, the heater in each group attemperating unit is connected with corresponding solid-state relay；Wherein, the fan in each group attemperating unitLay respectively in inner bag box body with temperature sensor, and be fixed on the sidewall of inner bag box body, the heating in each group attemperating unitDevice is arranged at the air outlet of corresponding fan, and the solid-state relay in each group attemperating unit is respectively arranged at the outer wall of inner bag box bodyOn；Temperature controller is arranged on the inwall of outter box, and controls, with temperature controller, the position that window is corresponding on the inwall of outter box, arrangesRunning through the temperature controller panel mouth of outter box interior or exterior space, the control window size of the size of temperature controller panel mouth and temperature controller is fitted mutuallyShould.
As a preferred technical solution of the present invention: described magnet is arranged at the upper surface of base plate, and magnet and base plateThe gap of preset height is retained between upper surface.
As a preferred technical solution of the present invention: also include that at least one foot is followed closely, described inner bag box bottom opens wideMouth is fixedly installed on the upper surface of base plate by each foot nail.
As a preferred technical solution of the present invention: described outter box top cover, inner bag box body top cover, outter box, inner bagBox body and base plate all use thin aluminium alloy plate or non-magnetic material to make.
As a preferred technical solution of the present invention: also include that array is arranged at least four boss of base plate lower surfaceFooting.
A kind of magnet attemperating unit for magnetic resonance detection of the present invention uses above technical scheme and existing skillArt is compared, and has following technical effect that the designed magnet attemperating unit for magnetic resonance detection of the present invention, use outer box,Inner bag, and coordinate the structure of insulation material to design, introducing multiple temperature control loop, each temperature control loop is by heater, fan and temperatureDegree sensor composition, each temperature sensor is by temperature controller control, and each temperature control loop can work independently, and reaches multiple spotDetection, the temperature control effect of multiparty control.In actual application, by selecting different accuracy and the temperature controller of specification, temperature sensorAnd heater, reach constant temperature effect and the control accuracy of different temperatures, be suitably applied the magnetic resonance detection of different occasion, reachTo effect applied widely, and then can effectively ensure that the service behaviour of magnet.
Accompanying drawing explanation
Fig. 1 is the top view that the present invention is designed for the magnet attemperating unit of magnetic resonance detection；
Fig. 2 is the exploded perspective view that the present invention is designed for the magnet attemperating unit of magnetic resonance detection；
Fig. 3 is the generalized section that the present invention is designed for the magnet attemperating unit of magnetic resonance detection；
Fig. 4 is that the present invention is designed for the structure of outter box top cover and outter box in the magnet attemperating unit of magnetic resonance detection and showsIt is intended to；
Fig. 5 is that the present invention is designed for inner bag box body top cover and the knot of inner bag box body in the magnet attemperating unit of magnetic resonance detectionStructure schematic diagram；
Fig. 6 is that the present invention is designed for the structural representation of base plate in the magnet attemperating unit of magnetic resonance detection；
Fig. 7 is that the present invention is designed for the structural representation of wall of inner container insulation material in the magnet attemperating unit of magnetic resonance detectionFigure；
Fig. 8 is that the present invention is designed for the structural representation of foot nail in the magnet attemperating unit of magnetic resonance detection.
Wherein, 1. outter box top cover, 2. inner bag box body top cover, 3. inner bag closure head insulation material, 4. outter box, 5.Inner bag box body, 6. wall of inner container insulation material, 7. foot nail, 8. base plate, 9. fan, 10. heater, 11. temperature sensors,12. magnets, 13. solid-state relays, 14. temperature controllers, 1a. crust sample hole, 2a. inner bag sample well, 4a. temperature controller facePlate mouth, 4b. outer casing bottom screwed hole, 5a. solid-state relay fixing hole, 5b. foot nail fixing hole, 5c. temperature sensor is solidDetermine hole, 5d. heater and fan fixing hole, 5e. cable hole, 6a. sensing station hole, 6b. heater and position of fanHole, 6c. cabling location hole, 6d. foot nail location hole, 7a. foot nail counter sink, 8a. base plate magnet fixing hole, 8b. base plate footNail fixing hole, 8c. plate shell fixing hole.
Detailed description of the invention
Below in conjunction with Figure of description, the detailed description of the invention of the present invention is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, the present invention devises a kind of magnet attemperating unit for magnetic resonance detection, toolBody includes outter box top cover 1, inner bag box body top cover 2, inner bag closure head insulation material 3, wall of inner container insulation material 6, base plate 8, magnet12, temperature controller 14, at least one foot nail 7, least one set attemperating unit are, and the outter box 4 that all opens wide of top and bottom and inner bag boxBody 5；Wherein, outter box top cover 1, inner bag box body top cover 2, outter box 4, inner bag box body 5 and base plate 8 all use thin aluminium alloy plate orNon-magnetic material is made, it is not necessary to bigger load-and pressure-bearing；The size of the bottom surface open ports of outter box 4 adapts with the size of base plate 8,Outter box 4 bottom surface open ports is fixing to be arranged on the upper surface of base plate 8 by screwed hole, the size of outter box top cover 1 and outer boxThe size of body 4 opened top mouth adapts, wherein living with the corresponding sides of outter box 4 opened top mouth of outter box top cover 1Be dynamically connected, outter box top cover 1 with its with outter box 4 opened top mouth company limit rotate for axle, it is achieved outter box 4 end face opensThe crust sample hole 1a running through upper and lower surface is set in the unlatching of opening and Guan Bi, and outter box top cover 1；Base plate 8 lower surface battle arrayRow arrange at least four boss footing, in order to carrying；Being smaller in size than on outter box 4 horizontal plane on inner bag box body 5 horizontal planeSize, and the height of inner bag box body 5 is not more than the height of outter box 4, and inner bag box body 5 is positioned in outter box 4, and inner bag box body5 bottom surface open ports are fixedly installed on the upper surface of base plate 8 by each foot nail 7, and foot follows closely 7 structures as shown in Figure 8, inner bag box bodyThe size of top cover 2 adapts with the size of inner bag box body 5 opened top mouth, inner bag box body top cover 2 wherein with inner bag boxThe corresponding sides of body 5 opened top mouth are flexibly connected, and inner bag box body top cover 2 is arranged and runs through upper and lower surface, and with crust sample holeThe inner bag sample well 2a that 1a position is corresponding；Inner bag closure head insulation material 3 is covered in the lower surface of inner bag box body top cover 2, and interiorArranging the through hole corresponding with inner bag sample well 2a on gallbladder closure head insulation material 3, wall of inner container insulation material 6 is covered in inner bag box bodyThe side of 5；Magnet 12 is positioned at inner bag box body 5, and magnet 12 is arranged at the upper surface of base plate 8, and magnet 12 and base plate 8 upper surfaceBetween retain the gap of preset height, thus increase air circulation in inner bag box body 5, reduce in inner bag box body 5 not coordinationThe temperature contrast put；In said structure, inner bag closure head insulation material 3 and wall of inner container insulation material 6 are close to inner bag box body respectivelyTop cover 2 is with on inner bag box body 5 inwall, and vertical direction gapless between inner bag box body 5 and base plate 8, by inner bag box body top cover 2 with interiorThe inner bag that gallbladder box body 5 is constituted is with extraneous without air exchange, and the fan 9 in each group attemperating unit remains rotation, circulation linerIn air, and respectively group attemperating unit in heater 10 power relatively low, temperature fluctuation is little, reaches good heat insulating, temperatureThe effect that degree uniformity is high；Each group attemperating unit includes fan 9, heater 10, temperature sensor 11, solid-state relay respectively13, temperature controller 14 is connected with the fan 9 in each group of attemperating unit, solid-state relay 13 respectively, adding in each group attemperating unitHot device 10 is connected with corresponding solid-state relay 13；Wherein, the fan 9 in each group attemperating unit and temperature sensor 11 position respectivelyIn inner bag box body 5, and being fixed on the sidewall of inner bag box body 5, the heater 10 in each group attemperating unit is arranged at corresponding windThe air outlet of fan 9, the solid-state relay 13 in each group attemperating unit is respectively arranged on the outer wall of inner bag box body 5；Temperature controller 14Being arranged on the inwall of outter box 4, and control, with temperature controller 14, the position that window is corresponding on the inwall of outter box 4, setting runs throughThe temperature controller panel mouth 4a of outter box 4 interior or exterior space, the control window size phase of the size of temperature controller panel mouth 4a and temperature controller 14Adapt to.
The designed magnet attemperating unit for magnetic resonance detection of the present invention, in actual application, magnet 12 and all unitsDevice is by base plate 8 load-bearing ground connection；Retain the gap presetting 2cm height between magnet 12 and base plate 8 upper surface, thus increaseAir circulation in inner bag box body 5, the temperature contrast of diverse location in minimizing inner bag box body 5.
As shown in Figure 4, outter box top cover 1 leaves crust sample hole 1a, in order to the insertion of detection sample, outside outter box 44a is left in side, in order to installs temperature controller, leaves outer casing bottom screwed hole 4b, and the screwed hole of base plate 8 side is joined bottom outter box 4Close, play the fixing upper surface being arranged at base plate 8 by screwed hole of the effect of fixing outter box 4, i.e. outter box 4 bottom surface open portsOn.
As it is shown in figure 5, leave inner bag sample well 2a on inner bag box body top cover 2, in order to the insertion of detection sample, inner bag box bodyLeave solid-state relay fixing hole 5a, foot nail fixing hole 5b, temperature sensor fixing hole 5c, heater and fan outside 5 to fixHole 5d, cable hole 5e, in order to the installation of components and parts and fixing.
As shown in Figure 6, base plate magnet fixing hole 8a, base plate foot nail fixing hole 8b are left above base plate 8, in order to magnet 12 HeFixing of inner bag box body 5, plate shell fixing hole 8c is left in base plate 8 side, is used for fixing outter box 4.
As it is shown in fig. 7, leave sensing station hole 6a, heater and position of fan hole 6b on wall of inner container insulation material 6, walkLine position hole 6c, foot nail location hole 6d, in order to the installation of components and parts and fixing.
As shown in Figure 8, foot nail 7 leaves foot nail counter sink 7a, is used for inner bag box body 5 to be fixed on base plate 8.
The designed magnet attemperating unit for magnetic resonance detection of technique scheme, uses outer box, inner bag, and coordinatesThe structure design of insulation material, introduces multiple temperature control loop, and each temperature control loop is by heater 10, fan 9 and temperature sensor11 compositions, each temperature sensor 11 is controlled by temperature controller 14, and each temperature control loop can work independently, and reaches many spot checksSurvey, the temperature control effect of multiparty control.In actual application, by selecting different accuracy and the temperature controller 14 of specification, temperature sensor11 and heater 10, reach constant temperature effect and the control accuracy of different temperatures, be suitably applied the nuclear magnetic resonance, NMR inspection of different occasionSurvey, reach effect applied widely, and then can effectively ensure that the service behaviour of magnet 12.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned enforcementMode, in the ken that those of ordinary skill in the art are possessed, it is also possible on the premise of without departing from present inventive conceptMake a variety of changes.