CN104237817A - Thermostat for nuclear-magnetic-resonance magnet - Google Patents
Thermostat for nuclear-magnetic-resonance magnet Download PDFInfo
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- CN104237817A CN104237817A CN201410500560.3A CN201410500560A CN104237817A CN 104237817 A CN104237817 A CN 104237817A CN 201410500560 A CN201410500560 A CN 201410500560A CN 104237817 A CN104237817 A CN 104237817A
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Abstract
The invention discloses a thermostat for a nuclear-magnetic-resonance magnet, and belongs to the technical field of nuclear-magnetic-resonance facilities. The thermostat comprises a tank, a liquid medium circulation tank, a magnet thermostatic tank, a circulating pump and a semiconductor refrigeration mechanism. A magnet-thermostatic-tank fitting hole is formed in a top plate of the tank. The liquid medium circulation tank is arranged in a tank cavity and is fixed with a base of the tank cavity. A heating element and liquid medium return pipes are arranged in a cavity of the liquid medium circulation tank. A heat-exchange conductive plate is arranged in the length direction of the left tank wall of the liquid medium circulation tank. The magnet thermostatic tank is fixed with the top plate of the tank. Liquid medium leading-back pipes are arranged in a jacket cavity of the magnet thermostatic tank. A liquid medium leading-in connector is arranged at the bottom of the jacket cavity. The circulating pump is fixed with the base. A liquid inlet of the circulating pump is communicated with the cavity of the liquid medium circulation tank. A liquid outlet of the circulating pump is connected with the liquid medium leading-in connector. The semiconductor refrigeration mechanism is fixed with the liquid medium circulation tank, and contacts with the heat-exchange conductive plate to enable the magnet to be in an ideal thermostatic state. The thermostat is convenient to operate and produce, small in size and economical.
Description
Technical field
The invention belongs to nuclear magnetic resonance facility technology field, be specifically related to a kind of nmr magnet thermostat, for providing isoperibol to the magnet of nuclear magnetic resonance analyser.
Background technology
Aforesaid nuclear magnetic resonance (english abbreviation is: MR) is also known as nmr imaging technique, its ultimate principle is: object is placed in special magnetic field, the hydrogen nuclei in object is excited with radio-frequency pulse, cause hydrogen nuclei to resonate and absorb energy, after radio-frequency pulse terminates, hydrogen nuclei sends electric signal by characteristic frequency and the fault offset that will absorb, and is received (also claiming to include), obtain image through robot calculator process by the receiver of outside.Aforesaid object comprises each quasi-life body and various material.The typical example of life entity is as human body, it directly can make the body tomographic image on transversal section, sagittal plane, coronal-plane and various inclined-plane to human body, and the artifact that can not produce in CT detection, at medical domain, MR to cranium brain common diseases such as detection intracerebral hematoma, brain outer hemotoncus, brain cancer, entocranial artery cancer, arteriovenous teratism, cerebral ischemia, intraspinal tube cancer, spinal cord empty, hydromyelias very effectively and be highly profitable to the diagnosis of the such as disease of lumber ertebral disc processus aboralis, primary carcinoma of liver and so on; Aforesaid various material, as various metal and nonmetallic materials, has positive effect for the composition in analysis of material.Aforesaid special magnetic field is externally-applied magnetic field, more particularly, is applied magnet (i.e. magnet).
As shown in the above description, magnet (being furnished with coil) is the pith that in nmr imaging technique is indispensable, but, because magnet is comparatively responsive to temperature variation, if thus the environment temperature residing for magnet can not be control effectively, so certainly the effect of nuclear magnetic resonance is had an impact.At medicinal, nuclear magnetic resonance analyser being placed in constant temperature enclosure together with the magnet that it is equipped with has been general way, but, when utilizing nuclear magnetic resonance to analyze various types of materials, sample of material (custom claims sample) usual splendid attire is in vitro, and the small volume of magnet, when enabling, the test tube filling sample is inserted on magnet, so, if also build a constant temperature enclosure to this, can the wasting of resources be caused so on the one hand, on the other hand common detection department is difficult to support in financial resources.Moreover namely material sample is analysed not only in universities and colleges, scientific research institutions with nmr imaging technique inspection test tube sample, and increasingly extensive in the application of production enterprise, product technology quality supervised department, chemical analysis department, petroleum prospecting department and even customs's frontier inspection etc.In view of this, the magnet thermostat that development structure is relatively simple, relatively cheap, easy to operate and reliability is desirable has positive effect to magnet constant temperature.
The technical information to magnet constant temperature can be seen in disclosed Chinese patent literature, typically as " thermostatic water bath controller for nuclear magnetic resonance imager " of Authorization Notice No. CN20140216 recommendation, although this patent formula can embody the technique effect that its instructions text the 2nd page of the 7 to 8 row is concluded, but this patent does not specifically instruct constant temperature water tank (patent claims cistern), the concrete structure of water jacket tank (patent claims sample box) and annexation each other, and this patent also concrete instruction to technology contents such as the heating arrangements of heating water bath, thus for developing the magnet thermostat with aforementioned positive effect, not there is referential enlightenment effect.
For above-mentioned prior art, the applicant has done lasting and useful exploration and experiment, finally defines technical scheme described below.
Summary of the invention
Task of the present invention is to provide a kind of and contributes to refrigeration and heating to incorporate things of diverse nature and use and effectively control magnet thermostat temperature, be conducive to the annexation improved between magnet thermostatic tank and liquid medium circulating box and use handled easily, be of value to and simplify structure and reduce overall volume and use and conveniently manufacture and embody the nmr magnet thermostat of cheapness.
Task of the present invention has been come like this, a kind of nmr magnet thermostat, comprise a casing, this casing is configured with a casing chamber, and offer a magnet thermostatic tank matching hole communicated with casing chamber on the roof box of this casing, this magnet thermostatic tank matching hole is positioned at the middle position of roof box, one liquid medium circulating box, this liquid medium circulating box is arranged at the box cavity of described casing and fixes with the base in casing chamber, be provided with in the liquid medium circulating box chamber of this liquid medium circulating box for the heating element of the liquid medium heating in liquid towards medium circulation case chamber with for liquid medium being returned the liquid medium recirculatory pipe caused in liquid medium circulating box chamber, and be equipped with a heat interchange conductive plate at the length direction edge of the left tank wall of liquid medium circulating box, one magnet thermostatic tank, this magnet thermostatic tank is positioned at described box cavity and fixes in the position and described roof box that correspond to described magnet thermostatic tank matching hole, this magnet thermostatic tank is configured with a chuck chamber, to be provided with space state in this chuck chamber and around the circumferencial direction in chuck chamber and to return skirt for the liquid medium caused by the liquid medium in chuck chamber in described liquid medium circulating box chamber, the lower extension that this liquid medium returns skirt is outside chuck chamber and be connected with described liquid medium recirculatory pipe, be provided with one in the bottom in chuck chamber and introduce interface for the liquid medium introduced by liquid medium in chuck chamber, one ebullator, the position on right side of length direction and described base that this ebullator is corresponding to described liquid medium circulating box are fixed, and the ebullator inlet of this ebullator communicates with described liquid medium circulating box chamber, and the ebullator liquid outlet of this ebullator and described liquid medium are introduced interface and are connected, semiconductor refrigeration mechanism, this semiconductor refrigerating mechanism is fixed back to the position of the side in liquid medium circulating box chamber and described liquid medium circulating box corresponding to described heat interchange conductive plate, and contacts with heat interchange conductive plate.
In a specific embodiment of the present invention, the left boxboard of described casing is provided with inspection door, the right boxboard of casing is provided with electric controller, and ventilating opening is respectively offered on boxboard and rearing-box plate and in the position corresponding to described semiconductor refrigerating mechanism before casing, described heating element, ebullator are connected with electric controller electrical control with semiconductor refrigerating mechanism, and described heating element is electric heating tube.
In another specific embodiment of the present invention, described magnet thermostatic tank is also furnished with a casing thermostatic tank support, the upper end of this magnet thermostatic tank support and described roof box are fixed towards the side in described casing chamber, and the lower end of magnet thermostatic tank support is configured to cantilever end, and the top of described liquid medium circulating box is corresponded to vacant state, the lower end of magnet thermostatic tank support is provided with a stent bearing plank, and the bottom supporting of magnet thermostatic tank is on this stent bearing plank.
In another specific embodiment of the present invention, the outer wall of liquid medium circulating box is provided with circulating box heat-insulation layer, and be provided with one at the top of liquid medium circulating box and draw liquid interface for being introduced by liquid medium in described liquid medium circulating box chamber, and be provided with a bleed valve for being discharged by the liquid medium in liquid medium circulating box chamber communicated with described liquid medium circulating box chamber in bottom.
In another specific embodiment of the present invention, described liquid medium circulating box is fixed with a liquid medium circulating box in the position of ebullator inlet corresponding to described ebullator and goes out liquid interface, and this liquid medium circulating box goes out liquefied gas interface and ebullator inlet connects.
Also have in a specific embodiment of the present invention, described ebullator is at magnetic drive pump.
More of the present invention and in a specific embodiment, on described magnet thermostatic tank and in the position corresponding to the described magnet thermostatic tank matching hole on described roof box, being equipped with a magnet constant temperature cover for closing the magnet thermostatic tank chamber of magnet thermostatic tank, and on the outer wall of magnet thermostatic tank, being provided with thermostatic tank heat-insulation layer.
In an of the present invention and then specific embodiment, described roof box is being provided with an O-ring seal around the position, edge of described magnet thermostatic tank matching hole, described magnet constant temperature cover and O-ring seal are sealed and matched, and cover at this magnet thermostatic tank and offer test tube jack and wire hole, magnet constant temperature cover towards on side be provided with handle, and magnet constant temperature cover towards under side be provided with cover heat-insulation layer.
Of the present invention again more and in a specific embodiment, described liquid medium is water, ethanol, conduction oil or anti freezing solution.
In an again of the present invention and then specific embodiment, described semiconductor refrigerating mechanism comprises one group of semiconductor chilling plate, the fan of one heat radiation moulding and one or more, one group of semiconductor chilling plate distributes with space state, and this group semiconductor chilling plate cements in the side of heat radiation moulding towards described heat interchange conductive plate towards the side of heat radiation moulding, and this group semiconductor chilling plate is fixed towards the side of heat interchange conductive plate and heat interchange conductive plate back to the side in described liquid medium circulating box chamber, heat radiation moulding is fixed on liquid medium circulating box, fan is fixed on the side of heat radiation moulding back to one group of semiconductor chilling plate.
Technical scheme provided by the invention is owing to being freezed by heat interchange conductive plate liquid towards medium circulation case by semiconductor refrigerating mechanism, liquid medium in liquid medium circulating box chamber is lowered the temperature, the heat compensation simultaneously produced by heating element, thus the heat that the cold making semiconductor refrigerating mechanism produce and heating element produce reaches balance each other, the scope that the mode of thus helping mutually with refrigeration and heating makes the temperature constant of liquid medium set, magnet thermostatic tank is made to be in accurate temperature constant state, the magnet be arranged in magnet thermostatic tank is finally made to be in desirable temperature constant state, owing to magnet thermostatic tank being arranged on the top that corresponds to liquid medium circulating box and having fixed in the position of magnet thermostatic tank matching hole of roof box and roof box that correspond to casing, be thus convenient to operation, because one-piece construction is terse and volume is little, thus not only conveniently can manufacture and use and embody economy, and the request for utilization of such as universities and colleges, scientific research institutions, industrial and mining enterprises, product quality supervision department, biochemical analysis, petroleum prospecting and even customs's frontier inspection etc. can be met and be able to expanded application field.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural drawing.
Fig. 2 is cut-open view and the application examples schematic diagram of Fig. 1.
Embodiment
In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.
Everyly in the following description relate to upper and lower, left and right, the concept of directivity (or claim directionality) of front and rear is all for the location status residing for the figure be described, object is to facilitate public understanding, thus can not be understood as being particularly limited to technical scheme provided by the invention.
Embodiment:
Refer to Fig. 1, give a casing 1, the shape of the bottom of this casing 1 is cuboid (also can be square), and the shape on top is truncated rectangular pyramids body, and the plane at top is configured to roof box 12.As shown in Figure 1, this casing 1 has a tank tower 16, and aforesaid roof box 12 and left boxboard, right boxboard, front boxboard and the rearing-box plate that also will mention below are all fixed on tank tower 16 for carrier with this tank tower 16.Space in casing 1 is configured with a casing chamber 11, and on roof box 12, offer a magnet thermostatic tank matching hole 121 communicated with casing chamber 11, and this magnet thermostatic tank matching hole 121 is positioned at the middle position of roof box 12.
Give a liquid medium circulating box 2, this liquid medium circulating box 2 also can be described as liquid medium constant temperature oven, makes liquid medium be in the state of temperature of setting.As shown in Figure 1, the casing chamber 11 that liquid medium circulating box 2 is arranged at aforementioned casing 1 is interior and fixing with the base 111 in casing chamber 11, be provided with in the liquid medium circulating box chamber 21 of this liquid medium circulating box 2 for the heating element 22 of the liquid medium heating in liquid towards medium circulation case chamber 21 with for liquid medium being returned the liquid medium recirculatory pipe 23 caused in liquid medium circulating box chamber 21, and be equipped with a heat interchange conductive plate 24 at the length direction edge of the left tank wall of liquid medium circulating box 2.As shown in Figure 1, be configured with a heat interchange conductive plate embedding chamber 29(in the left side of the length direction of liquid medium circulating box 2 and also can be described as the embedding chamber of evaporation plate or evaporation plate mating cavity), this embedding chamber of heat interchange conductive plate 29 also can be described as evaporation plate by aforesaid heat interchange conductive plate 24(just) compensate, specifically, the position that heat interchange conductive plate 24 is corresponding to this embedding chamber of heat interchange conductive plate 29 is fixed on the left tank wall of liquid medium circulating box 2.Preferably, heat interchange conductive plate 24 adopts the copper coin of heat transfer performance excellence, but also can use the sheet metal of aluminium sheet or other equivalence.
Give a magnet thermostatic tank 3, this magnet thermostatic tank 3 is positioned at aforementioned casing chamber 11 and fixes in the position and aforementioned roof box 12 that correspond to aforementioned magnet thermostatic tank matching hole 121, this magnet thermostatic tank 3 is configured with a chuck chamber 31, to be provided with space state in this chuck chamber 31 and around the circumferencial direction in chuck chamber 31 and to return skirt 311 for the liquid medium in chuck chamber 31 being returned the liquid medium caused in aforementioned liquid medium circulation case chamber 21, the lower extension that this liquid medium returns skirt 311 is outer and be connected with aforesaid liquid medium recirculatory pipe 23 to chuck chamber 31, chuck chamber 31 bottom and be positioned at middle position be provided with one for liquid medium is introduced chuck chamber 31 liquid medium introduce interface 312.
Give an ebullator 4, this ebullator 4 is fixed on motor cabinet 43 in the position on the right side of the length direction corresponding to aforementioned medium circulation case 2, and motor cabinet 43 is fixed with screw 431 and aforesaid base 111, and the ebullator inlet 41 of this ebullator 4 is connected with liquid medium circulating box chamber 21 and communicates, and the inlet end 3121 that the ebullator liquid outlet 42 of this ebullator 4 introduces interface 312 by transitional connection pipe 421 and aforementioned liquid medium is connected.As preferred scheme, a fixed band 44 also can be adopted to be bound by motor cabinet 43 by ebullator 4, the vibration likely occurred in the course of the work to avoid ebullator and affect ebullator inlet 41 and liquid medium circulating box goes out the concentricity between liquid interface 28 and causes seepage.
Give semiconductor refrigeration mechanism 5, corresponding to aforementioned hot, to exchange conductive plate 24 fixing back to position and the aforementioned liquid medium circulation case 2 of the side in liquid medium circulating box chamber 21 in this semiconductor refrigerating mechanism 5, and contact with heat interchange conductive plate 24.
Please continue to refer to Fig. 1, in the present embodiment, correspond on the left of liquid medium circulating box 2 because the position of aforesaid semiconductor refrigerating mechanism 5 in the casing chamber 11 of casing 1 has been arranged on, thus on the left boxboard of casing 1, inspection door 13 is provided with, the right boxboard of casing 1 is provided with electric controller 14, before casing 1, boxboard and rearing-box plate respectively offer ventilating opening 15 in position to correspond to each other, ventilating opening 15 is also corresponding with semiconductor refrigerating mechanism 5.Aforesaid heating element 22, ebullator 4, semiconductor refrigerating mechanism 5 are all connected with electric controller 14 electrical control, wherein: heating element 22 is electric heating tube.Applicant it should be noted that: if also arrange aforesaid access door 13 on the right boxboard of casing 1, if and ebullator 4 position with semiconductor refrigerating mechanism 5 is exchanged, so should be considered as not departing from aim of the present invention and still belonging to technology contents category disclosed by the invention.
As shown in Figure 1, aforesaid magnet thermostatic tank 3 is also equipped with a casing thermostatic tank support 32, upper end and the aforementioned roof box 12 of this magnet thermostatic tank support 32 are fixed towards the side in casing chamber 11, and the lower end of magnet thermostatic tank support 32 is configured to cantilever end, and correspond to the top of liquid medium circulating box 2 with vacant state, that is magnet thermostatic tank 3 corresponds to the top of liquid medium circulating box 2 with the state be suspended on roof box 1.Be fixed with a stent bearing plank 321 in the lower end of magnet thermostatic tank support 32 by stent bearing plank screw 3211, the bottom supporting of this magnet thermostatic tank 3 or claim to find a place on this stent bearing plank 321.Preferably, aforementioned liquid medium introduces the lower end of interface 312 through the support base plate hole 3212 on stent bearing plank 321.Because magnet thermostatic tank 3 is with the top of vacant state corresponding to liquid medium circulating box 2, thus ebullator 4 and semiconductor refrigerating mechanism 5 vibration effect of liquid medium circulating box 2 can not be subject to, because operationally more or less can make liquid medium circulating box 2 produce vibration.This setup of this outer magnet thermostatic tank 3 is extremely conducive to the operation of operator.
Using saving energy consumption to embody insulation, on the outer wall of liquid medium circulating box 2, being thus provided with the circulating box heat-insulation layer 25 preferably filled the post of with the aerogel of excellent thermal insulation performance (also can use polyethylene foamed or polyurethane).Being provided with one at the top of liquid medium circulating box 2 and drawing liquid interface 26 for being introduced by liquid medium in liquid medium torus 21, being provided with a bleed valve 27 for the liquid medium in liquid medium circulating box chamber 21 being discharged (eliminating) communicated with liquid medium circulating box chamber 21 in the bottom of liquid medium circulating box 2.
Still see Fig. 1, be fixed with on aforesaid liquid medium circulating box 2 and in the position of ebullator inlet 41 corresponding to ebullator 4 a liquid medium circulating box go out above liquid interface 28( mention), this liquid medium circulating box goes out liquefied gas interface 28 and connects with ebullator inlet 41.Preferably, ebullator 4 is magnetic drive pump.
A magnet constant temperature cover 34 for closing the magnet thermostatic tank chamber 33 of magnet thermostatic tank 3 is equipped on aforementioned magnet thermostatic tank 3 and in the position corresponding to the magnet thermostatic tank matching hole 121 on described roof box 12, and be provided with thermostatic tank heat-insulation layer 35 on the outer wall of magnet thermostatic tank 3, the material of thermostatic tank heat-insulation layer 35 is as the description to circulating box heat-insulation layer 25.
Preferably, aforesaid roof box 12 is being provided with an O-ring seal 1211 around the position, edge of aforementioned magnet thermostatic tank matching hole 121, aforesaid magnet constant temperature cover 34 is sealed and matched with O-ring seal 1211, and on this magnet constant temperature cover 34, offer test tube jack 341 and wire hole 342, magnet constant temperature cover 34 towards on side be provided with handle 343(a pair), and magnet constant temperature cover 34 towards under side be provided with cover heat-insulation layer 344.
The liquid medium mentioned time and again above in the present embodiment for water and for pure water, but also can use the liquid of ethanol, conduction oil, anti freezing solution or other equivalence.
Still see Fig. 1, aforesaid semiconductor refrigerating mechanism 5 comprises one group of semiconductor chilling plate 51, one heat radiation moulding 52 and a pair fan 53, one group of semiconductor chilling plate 51 distributes with space state, and this group semiconductor chilling plate 51 sticks with glue agent and cements in heat radiation moulding 52 and exchange the side of conductive plate 24 towards aforementioned hot towards the side of heat radiation moulding 52, and this group semiconductor chilling plate 51 sticks with glue agent equally towards the side of heat interchange conductive plate 24 and heat interchange conductive plate 24 is fixed back to the side in liquid medium circulating box chamber 21, heat radiation moulding 52 is fixed on liquid medium circulating box 2, fan 53 fan gib screw 531 is fixed on the side of heat radiation moulding 52 back to one group of semiconductor chilling plate 51.
Aforesaid one group of semiconductor chilling plate 51 is respectively connected with the electrical control of aforementioned electric control box 14 by circuit 511, and a pair fan 53 is connected with electric controller 14 electrical control by circuit equally.As shown in Figure 1, heat radiation moulding 52 is configured with one group of radiating fin 521 towards the length direction of the side of fan 53 with space state, and aforesaid ventilating opening 15 is corresponding with radiating fin 521.If the quantity of fan 53 to be reduced to one or be increased to three and even more, so all should be considered as and technology contents disclosed by the invention equivalence.Because the structure of aforesaid semiconductor chilling plate 51 and principle belong to known technology, such as can see Chinese patent CN202757360U, thus applicant repeats no more.In the present embodiment, semiconductor chilling plate 51(also claims thermoelectric module or semiconductor refrigerating module) adopt produced by positive semiconductor cooling piece Electronic Science and Technology Co., Ltd. of Guangzhou, Guangdong Province, China city and the application is ZY-3409 semiconductor refrigerating module at the trade mark of market sale before proposing.
Application examples:
Refer to Fig. 2 and composition graphs 1, applicant describes use of the present invention, close bleed valve 27, magnet 3 is put into the magnet thermostatic tank chamber 33 of magnet thermostatic tank 3, the extraction wire concentric cable 61 of the radio-frequency coil of magnet 6 causes outside from wire hole 342 and is connected with NMR imaging instrument, magnet constant temperature cover 34 is configured to the position of the magnet thermostatic tank matching hole 121 of the roof box 12 of casing 1 in the position corresponding to O-ring seal 1211, magnet thermostatic tank chamber 33 lid is closed.The test tube 7 filling sample (also can claim sample) is aimed at test tube jack 341 to be inserted in the magnet test tube hole 62 that defaults on magnet 6.In aforementioned process, in the liquid medium circulating box chamber 21 of liquid medium circulating box 2, introducing liquid medium (the present embodiment is pure water) by drawing liquid interface 26 simultaneously, then making heating element 22, ebullator 4 and semiconductor refrigerating mechanism 5 all in running order by the operation to electric controller 14.Under the work of ebullator 4, liquid medium in liquid medium circulating box chamber 21 goes out liquid interface 28 through liquid medium circulating box successively, ebullator inlet 41, ebullator liquid outlet 42 and circulatory mediator introduce the inlet end 3121 of interface 312, until entered the chuck chamber 31 of magnet thermostatic tank 3 by the endpiece 3122 of circulatory mediator introducing interface 312, enter the skirt entrance 3111 that returns that liquid medium in chuck chamber 31 returns skirt 311 through one group of (four) liquid medium to enter liquid medium and return in skirt 311, the skirt that returns returning skirt 311 by liquid medium again exports and 3112 causes liquid medium recirculatory pipe 23, cause for 23 times in liquid medium circulating box chamber 21 by liquid medium liquid back pipe, thus form circulating of liquid medium.Meanwhile, because heating element 22 is in running order, thus heated by the liquid medium in its liquid towards medium circulation case chamber 21.Again simultaneously, because semiconductor refrigerating mechanism 5 is in running order, thus freezed by the liquid medium in its liquid towards medium circulation case chamber 21.In this process, the refrigerating capacity of the semiconductor chilling plate 51 of semiconductor refrigerating mechanism 5 is constant, because support that the power supply that semiconductor chilling plate 51 works is stabilized voltage supply, semiconductor chilling plate 51 constantly produces cold and the temperature of the circulatory mediator in liquid medium circulating box chamber 21 can be caused to decline, thus the heat produced by heating element 22 is compensated, the cold that semiconductor refrigerating mechanism 5 is produced and heating element 22(electric heating tube) heat balance that produces is in the temperature range set by electric controller 14, and the temperature error allowed is ± 0.1 DEG C.The temperature range of liquid medium is preferably 15-35 ± 0.1 DEG C, is 20-30 ± 0.1 DEG C preferably, is 22-28 ± 0.1 DEG C better, is preferably 25 ± 0.1 DEG C, and the present embodiment is 25 ± 0.1 DEG C, thus makes magnet 6 be in the temperature constant state of 25 ± 0.1 DEG C.
In sum, technical scheme provided by the invention overcomes the shortcoming in prior art, completes invention task, has cashed the technique effect in superincumbent technique effect hurdle faithfully.
Claims (10)
1.
a kind of nmr magnet thermostat, it is characterized in that comprising a casing (1), this casing (1) is configured with a casing chamber (11), and offer a magnet thermostatic tank matching hole (121) communicated with casing chamber (11) on the roof box (12) of this casing (1), this magnet thermostatic tank matching hole (121) is positioned at the middle position of roof box (12), one liquid medium circulating box (2), the casing chamber (11) that this liquid medium circulating box (2) is arranged at described casing (1) is interior and fixing with the base (111) of casing chamber (11), be provided with for the heating element (22) of the liquid medium heating in liquid towards medium circulation case chamber (21) with for liquid medium being returned the liquid medium recirculatory pipe (23) caused in liquid medium circulating box chamber (21) in the liquid medium circulating box chamber (21) of this liquid medium circulating box (2), and be equipped with a heat interchange conductive plate (24) at the length direction edge of the left tank wall of liquid medium circulating box (2), one magnet thermostatic tank (3), this magnet thermostatic tank (3) is positioned at described casing chamber (11) and fixes in the position and described roof box (12) that correspond to described magnet thermostatic tank matching hole (121), this magnet thermostatic tank (3) is configured with a chuck chamber (31), be provided with for by the liquid medium in chuck chamber (31), the liquid medium caused in described liquid medium circulating box chamber (21) returns skirt (311) with space state in this chuck chamber (31) and around the circumferencial direction of chuck chamber (31), the lower extension that this liquid medium returns skirt (311) to chuck chamber (31) outward and be connected with described liquid medium recirculatory pipe (23), be provided with one in the bottom of chuck chamber (31) and introduce interface (312) for the liquid medium introduced by liquid medium in chuck chamber (31), one ebullator (4), this ebullator (4) is fixing at position and the described base (111) on right side of the length direction corresponding to described liquid medium circulating box (2), and the ebullator inlet (41) of this ebullator (4) communicates with described liquid medium circulating box chamber (21), and the ebullator liquid outlet (42) of this ebullator (4) and described liquid medium are introduced interface (312) and are connected, semiconductor refrigeration mechanism (5), this semiconductor refrigerating mechanism (5) to correspond to described heat interchange conductive plate (24) fixing back to position and the described liquid medium circulating box (2) of the side in liquid medium circulating box chamber (21), and contacts with heat interchange conductive plate (24).
2.
nmr magnet thermostat according to claim 1, it is characterized in that being provided with inspection door (13) on described casing (1) left boxboard, the right boxboard of casing (1) is provided with electric controller (14), and ventilating opening (15) is respectively offered on the front boxboard and rearing-box plate of casing (1) and in the position corresponding to described semiconductor refrigerating mechanism (5), described heating element (22), ebullator (4) is connected with electric controller (14) electrical control with semiconductor refrigerating mechanism (5), described heating element (22) is electric heating tube.
3.
nmr magnet thermostat according to claim 1, it is characterized in that described magnet thermostatic tank (3) is also furnished with a casing thermostatic tank support (32), the upper end of this magnet thermostatic tank support (32) and described roof box (12) are fixed towards the side of described casing chamber (11), and the lower end of magnet thermostatic tank support (32) is configured to cantilever end, and the top of described liquid medium circulating box (2) is corresponded to vacant state, the lower end of magnet thermostatic tank support (32) is provided with a stent bearing plank (321), the bottom supporting of magnet thermostatic tank (3) is on this stent bearing plank (321).
4.
nmr magnet thermostat according to claim 1, it is characterized in that on the outer wall of liquid medium circulating box (2), be provided with circulating box heat-insulation layer (25), and be provided with one at the top of liquid medium circulating box (2) and draw liquid interface (26) for being introduced by liquid medium in described liquid medium circulating box chamber (21), and be provided with a bleed valve (27) for being discharged by the liquid medium in liquid medium circulating box chamber (21) communicated with described liquid medium circulating box chamber (21) in bottom.
5.
nmr magnet thermostat according to claim 1, it is characterized in that going up at described liquid medium circulating box (2) and being fixed with a liquid medium circulating box in the position of the ebullator inlet (41) corresponding to described ebullator (4) going out liquid interface (28), this liquid medium circulating box goes out liquefied gas interface (28) and connects with ebullator inlet (41).
6.
according to claim 1 or 5, nmr magnet thermostat, is characterized in that described ebullator (4) is at magnetic drive pump.
7.
nmr magnet thermostat according to claim 1, it is characterized in that described magnet thermostatic tank (3) upper and be equipped with a magnet constant temperature cover (34) for closing the magnet thermostatic tank chamber (33) of magnet thermostatic tank (3) in the position corresponding to the described magnet thermostatic tank matching hole (121) on described roof box (12), and on the outer wall of magnet thermostatic tank (3), be provided with thermostatic tank heat-insulation layer (35).
8.
nmr magnet thermostat according to claim 7, it is characterized in that going up at described roof box (12) and the position, edge of described magnet thermostatic tank matching hole (121) being provided with an O-ring seal (1211), described magnet constant temperature cover (34) and O-ring seal (1211) are sealed and matched, and on this magnet constant temperature cover (34), offer test tube jack (341) and wire hole (342), at magnet constant temperature cover (34), upper side is provided with handle (343), and magnet constant temperature cover (34) towards under side be provided with cover heat-insulation layer (344).
9.
nmr magnet thermostat according to claim 1 or 4, is characterized in that described liquid medium is water, ethanol, conduction oil or anti freezing solution.
10.
nmr magnet thermostat according to claim 1, it is characterized in that described semiconductor refrigerating mechanism (5) comprises one group of semiconductor chilling plate (51), the fan (53) of one heat radiation moulding (52) and one or more, one group of semiconductor chilling plate (51) distributes with space state, and this group semiconductor chilling plate (51) cements in the side of heat radiation moulding (52) towards described heat interchange conductive plate (24) towards the side of heat radiation moulding (52), and this group semiconductor chilling plate (51) is fixed towards the side of heat interchange conductive plate (24) and heat interchange conductive plate (24) back to the side of described liquid medium circulating box chamber (21), heat radiation moulding (52) is fixed on liquid medium circulating box (2), fan (53) is fixed on the side of heat radiation moulding (52) back to one group of semiconductor chilling plate (51).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410500560.3A CN104237817B (en) | 2014-09-26 | 2014-09-26 | Nmr magnet thermostat |
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| CN201410500560.3A CN104237817B (en) | 2014-09-26 | 2014-09-26 | Nmr magnet thermostat |
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| CN104237817B CN104237817B (en) | 2016-11-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764233A (en) * | 2015-03-31 | 2015-07-08 | 阿尔西制冷工程技术（北京）有限公司 | Air cooling and water cooling integral heat exchanger unit for nuclear magnetism device |
| CN104764234A (en) * | 2015-03-31 | 2015-07-08 | 阿尔西制冷工程技术（北京）有限公司 | Air cooling and water cooling integral water cooler unit for nuclear magnetism device |
| CN114879774A (en) * | 2022-03-31 | 2022-08-09 | 合肥卓科智能技术有限公司 | Circulation constant temperature system |
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| US6741158B2 (en) * | 2002-07-18 | 2004-05-25 | Honeywell International Inc. | Magnetically sensed thermostat control |
| DE102004012416B4 (en) * | 2004-03-13 | 2006-04-20 | Bruker Biospin Gmbh | Superconducting magnet system with pulse tube cooler |
| CN100490739C (en) * | 2005-12-29 | 2009-05-27 | 东软飞利浦医疗设备系统有限责任公司 | Magnetic body thermostatic control device and method for permanent-magnet magnetic resonance imaging systems |
| GB2434488B (en) * | 2006-01-18 | 2008-08-13 | Siemens Magnet Technology Ltd | Superconducting magnet cryostat with integrated field burst protection |
| CN201402316Y (en) * | 2009-02-11 | 2010-02-10 | 天津医科大学总医院 | Thermostatic water bath controller for nuclear magnetic resonance imager |
| US9234691B2 (en) * | 2010-03-11 | 2016-01-12 | Quantum Design International, Inc. | Method and apparatus for controlling temperature in a cryocooled cryostat using static and moving gas |
| CN204101714U (en) * | 2014-09-26 | 2015-01-14 | 苏州露宇电子科技有限公司 | Nmr magnet thermostat |
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- 2014-09-26 CN CN201410500560.3A patent/CN104237817B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764233A (en) * | 2015-03-31 | 2015-07-08 | 阿尔西制冷工程技术（北京）有限公司 | Air cooling and water cooling integral heat exchanger unit for nuclear magnetism device |
| CN104764234A (en) * | 2015-03-31 | 2015-07-08 | 阿尔西制冷工程技术（北京）有限公司 | Air cooling and water cooling integral water cooler unit for nuclear magnetism device |
| CN104764234B (en) * | 2015-03-31 | 2017-03-15 | 阿尔西制冷工程技术（北京）有限公司 | Nuclear-magnetism sets the air-cooled water-cooled of trim set in the water chiller of one |
| CN114879774A (en) * | 2022-03-31 | 2022-08-09 | 合肥卓科智能技术有限公司 | Circulation constant temperature system |
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| CN104237817B (en) | 2016-11-30 |
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