CN104034076B - Ultra-low temperature cold radiator cooler - Google Patents
Ultra-low temperature cold radiator cooler Download PDFInfo
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- CN104034076B CN104034076B CN201410077094.2A CN201410077094A CN104034076B CN 104034076 B CN104034076 B CN 104034076B CN 201410077094 A CN201410077094 A CN 201410077094A CN 104034076 B CN104034076 B CN 104034076B
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Abstract
The invention provides and a kind ofly can realize the ultra-low temperature cold radiator cooler that the evaporation capacity of cold-producing medium and liquefaction amount keep balance with simple structure. Ultra-low temperature cold radiator cooler of the present invention is provided with: liquid nitrogen (50) (cold-producing medium), carries out cooling to cooled object (60); Cooler bin (20), accommodates liquid nitrogen (50); Refrigeration machine (30), is disposed in this cooler bin (20) upper, carries out cooling to nitrogen; Conducting-heat elements (40A), be disposed on cooler bin (20), its high temperature side end (42) is extended to the outside of cooler bin (20) and extend to the inside of cooler bin (20) low temperature side end (44), heat outside cooler bin (20) is imported to the inside of cooler bin (20). And, under the common state of the evaporation capacity of liquid nitrogen (50) and the liquefaction amount balance of nitrogen, low temperature side end (44) are set in higher than the liquid level (52) of liquid nitrogen (50) and lower than the position of the cooling bench (32) of refrigeration machine (30).
Description
The application advocates the priority of No. 2013-044532nd, Japanese patent application based on March 6th, 2013 application.The full content of its application is by reference to being applied in this description.
Technical field
The present invention relates to a kind of the cold-producing medium being filled in casing be carried out to cooling ultra-low temperature cold radiator cooler.
Background technology
Generally, as cooled object is carried out to cooling device, known have by the cold-producing medium (example being contained in casingAs liquid nitrogen) in dipping cooled object cooled object is carried out to cooling ultra-low temperature cold radiator cooler. Cold-producing medium in casing is logicalCross from cooled object and receive heat and evaporate. Therefore be set as following structure: refrigeration machine is set on casing, with refrigeration machine to steamingThe cold-producing medium of sending out carries out cooling its condensation again that makes. And, proposed a kind of cold-producing medium being provided with having liquefied and heatedHeater, detect the sensor of liquid level and the ultra-low temperature cold radiator cooler of heater control device of cold-producing medium.
Patent documentation 1: Japanese kokai publication sho 63-006354 communique
But, in the cold-producing medium having liquefied, arrange in the structure of heater and liquid level sensor, exist ultralow temperature coolingThe complex structure of device, and it controls the problem of trouble.
Summary of the invention
The present invention completes in view of the above problems, and its object is to provide one to realize refrigeration with simple structureThe evaporation capacity of agent and liquefaction amount keep the ultra-low temperature cold radiator cooler of balance.
A mode of the present invention is a kind of ultra-low temperature cold radiator cooler, it is characterized in that having:
Cold-producing medium, carries out cooling to cooled object;
Casing, accommodates this cold-producing medium;
Refrigeration machine, is disposed on this casing, carries out cooling to described cold-producing medium; And
Conducting-heat elements, one end portion is positioned at the outside of described casing and the other end and is positioned at the inside of described casing, by instituteThe heat of stating casing outside imports the inside of described casing.
Disclosed ultra-low temperature cold radiator cooler imports box house by conducting-heat elements by the heat of casing outside to be come systemCryogen heats, and therefore can realize with simple structure evaporation capacity and the liquefaction amount maintenance balance of cold-producing medium.
Brief description of the drawings
Fig. 1 is the Sketch figure of the ultra-low temperature cold radiator cooler of one embodiment of the present invention, and Fig. 1 (A) represents refrigerationThe liquid level of agent leaves the figure of the state of the low temperature side end of conducting-heat elements, and Fig. 1 (B) is liquid level and the conducting-heat elements that represents cold-producing mediumThe figure of state of low temperature side end contact.
Fig. 2 is that Sketch figure, Fig. 2 (A) of the ultra-low temperature cold radiator cooler of another embodiment of the present invention represents systemThe liquid level of cryogen leaves the figure of the state of the low temperature side end of conducting-heat elements, and Fig. 2 (B) is liquid level and the heat-conducting part that represents cold-producing mediumThe figure of the state of the low temperature side end contact of part.
Fig. 3 is the Sketch figure of the ultra-low temperature cold radiator cooler of another embodiment of the invention, and Fig. 3 (A) represents systemThe liquid level of cryogen leaves the figure of the state of the low temperature side end of conducting-heat elements, and Fig. 3 (B) is liquid level and the heat-conducting part that represents cold-producing mediumThe figure of the state of the low temperature side end contact of part.
Fig. 4 is the Sketch figure of the ultra-low temperature cold radiator cooler of another embodiment of the invention, and Fig. 4 (A) represents systemThe liquid level of cryogen leaves the figure of the state of the low temperature side end of conducting-heat elements, and Fig. 4 (B) is liquid level and the heat-conducting part that represents cold-producing mediumThe figure of the state of the low temperature side end contact of part.
Fig. 5 is the figure that represents the relation between liquid level and the interior pressure of casing and saturated-steam temperature.
Fig. 6 is the figure for cold-producing medium icing process on the cooling bench of refrigeration machine is described.
In figure: 10A～10D-ultra-low temperature cold radiator cooler, 20-cooler bin, 22-spatial portion, 30-refrigeration machine, 32-cooling bench,40A, 40B-conducting-heat elements, 42-high temperature side end, 44-low temperature side end, 48-heat exchange portion, 50-cold-producing medium, 52-liquid level, 60-Cooled object, 70-heat insulating member, 80-fan, 90-height regulating mechanism.
Detailed description of the invention
Then, by reference to the accompanying drawings embodiments of the present invention are described.
Fig. 1 is the Sketch figure that represents the ultra-low temperature cold radiator cooler 10A of one embodiment of the present invention. Ultralow temperature is coolingDevice 10A has cooler bin 20, refrigeration machine 30, conducting-heat elements 40A and cold-producing medium 50 etc.
Cooler bin 20 is airtight metal container made. This cooler bin 20 is the casees that cooled object 60 carried out to cooling processingBody, accommodates cold-producing medium 50 therein. In present embodiment, liquid nitrogen (is called cold-producing medium below as cold-producing medium 50Liquid nitrogen 50).
Cooler bin 20 is not filled up by liquid nitrogen 50, but accommodates the liquid nitrogen that is enough to the amount of flooding cooled object 6050. Therefore, exist in the inside of cooler bin 20: liquid nitrogen 50 is stuck in the liquid phase part that lower box forms; With liquid nitrogen 50The nitrogen evaporating and gasify is stagnated the gas phase part forming. Liquid nitrogen 50 tops in cooler bin 20 will be formed with spatial portion22, this spatial portion 22 becomes gas phase part.
In addition,, in present embodiment, liquid nitrogen 50 is used as to cold-producing medium, but the kind of cold-producing medium is not limited to this, according to quiltThe chilling temperature of cooling thing 60 can suitably be selected. While wanting to be cooled to the temperature lower than liquid nitrogen, as cold-producing medium, also canEnough use helium etc.
And, though in present embodiment do not arrange, can be made as in vacuum tank (vacuum Dewar bottle), hold coolingThe structure of case 20. By being made as this structure, can preventing radiant heat intrusion cooler bin 20, and can improve the cold of cooled object 60But efficiency.
Refrigeration machine 30 is disposed on cooler bin 20. Refrigeration machine 30 is by carrying out cold at the nitrogen of cooler bin 20 interior evaporationsThereby but make its again condensation again become the device of liquid nitrogen 50. As long as can being cooled to, this refrigeration machine 30 makes nitrogen condensation againTemperature (about about 60K), its kind does not have special provision.
Therefore,, as refrigeration machine 30, can be suitable for Ji Fude-McMahon formula refrigeration machine (GM refrigeration machine), joule TomThe various refrigeration machines such as inferior formula refrigeration machine, pulse tube refrigerating machine, sterlin refrigerator. In addition,, in present embodiment, show useGM refrigeration machine is as the example of refrigeration machine 30.
The mode that refrigeration machine 30 extends towards the liquid level 52 of liquid nitrogen 50 from casing top with cylinder body is installed on cooler bin 20On. Be provided with at the leading section of cylinder body the cooling bench 32 that cold of producing by refrigeration machine 30 is cooled.
The nitrogen having evaporated of the spatial portion 22 interior existence of cooler bin 20 is by contacting and be cooled with cooling bench 32. AndAnd, by be cooled to freezing point following and by the liquid nitrogen 50 of condensation again towards 50 of liquid nitrogens that are stuck in cooler bin 20 bottomsFall.
Then, conducting-heat elements 40A is described.
Conducting-heat elements 40A is rod-like members, and copper or the aluminium etc. higher by thermal conductivity form. This conducting-heat elements 40A utilizes welderingConnect etc. and to arrange (fixing) in the top of cooler bin 20. And, in conducting-heat elements 40A, its upper end (end of arrow Z1 direction in figurePortion) become high temperature side end 42 (being sometimes also called an end), bottom (end of arrow Z2 direction in figure) becomes low temperature sideEnd 44 (being sometimes also called the other end).
Arranging under state, high temperature side end 42 is from cooler bin 20 (Z1 direction side) extension toward the outer side. And, low temperature sideExtend to the inside of cooler bin 20 end 44.
The diameter of high temperature side end 42 is set the diameter in the cooler bin 20 that is greater than conducting-heat elements 40A for. Therefore, with heat conductionOther positions of parts 40A are compared, and the surface area of high temperature side end 42 is wider, can effectively absorb outside heat.
Conducting-heat elements 40A play the casing outside that this high temperature side end 42 is absorbed heat import cooler bin 20 inThe function of portion. Therefore, low temperature side end 44 is warming up to and can be made liquid nitrogen 50 evaporate by the heat of cooler bin 20 outsidesMore than temperature.
And the height and position (height and position in Z1, Z2 direction) in the vertical direction of low temperature side end 44 is set forHigher than the height and position of the liquid level 52 of the liquid nitrogen 50 under common state described later (following, this height and position is called to common shapeState height NL) position and lower than the position of the bottom of the cooling bench 32 of refrigeration machine 30.
At this, utilize Fig. 6, the variation in altitude of the liquid level 52 that results from liquid nitrogen 50 is described.
Fig. 6 illustrates the ultra-low temperature cold radiator cooler 100A that conducting-heat elements 40A is not set. In addition,, in Fig. 6, omit diagram quiltCooling thing 60.
Liquid nitrogen 50 in cooler bin 20 heats up, evaporates by carrying out heat exchange with cooled object 60, thereby becomes nitrogenGas. After the condensation again by being cooled on the cooling bench 32 of refrigeration machine 30 of this nitrogen, liquefaction, turn back to and be stuck in cooler binIn the liquid nitrogen 50 of 20 bottoms.
Fig. 6 (A) illustrates that the evaporation capacity of this liquid nitrogen 50 and the liquefaction amount being produced by the cooling of the nitrogen gasifying keep flatThe state (in this description, keeping the state of balance to be called common state this evaporation capacity and liquefaction amount) of weighing apparatus.
Now, suppose that, with respect to common state, the refrigerating capacity of refrigeration machine 30 is relative with respect to the heat of cooled object 60Larger, this phenomenon occurs in the time that the caloric value of cooled object 60 is lower than assumed value.
So, if the refrigerating capacity of refrigeration machine 30 is larger with respect to the heat of cooled object 60, a large amount of nitrogen is by systemCold machine 30 and being liquefied. Therefore,, as shown in Fig. 6 (B), the liquid level 52 of liquid nitrogen 50 rises.
Fig. 5 is that relation and the liquid level between representing to press in the liquid level of the liquid nitrogen 50 in cooler bin 20 and casing is highThe figure of the relation between degree and saturated-steam temperature. In figure, transverse axis represents the liquid level of liquid nitrogen 50, and the left longitudinal axis represents casingInterior pressure, the right longitudinal axis represents saturated-steam temperature.
As shown in the drawing, if the liquid level 52 of liquid nitrogen 50 rises, in the casing in cooler bin 20, pressure will decline, coolingSaturated-steam temperature in case 20 declines thereupon. Because saturated-steam temperature declines, the refrigerating capacity of refrigeration machine 30 also declines, nitrogenThe liquefaction amount of gas reduces. But, if maintain the refrigerating capacity of refrigeration machine 30 higher than the state of the caloric value of cooled object 60, dimensionHold the rising of liquid level 52.
If saturated-steam temperature drops to 63K (freezing point) left and right, there is the icing phenomenon of liquid nitrogen 50. This freezes existingAs if the nitrogen platform 32 that is cooled is cooling and solidify and produce after liquefaction.
And along with the liquid level that is stuck in the liquid nitrogen 50 in cooler bin 20 rises, liquid nitrogen 50 directly and cooling bench 32Contact, also can produce freezing of nitrogen thus. Fig. 6 (C) illustrates nitrogen icing state on cooling bench 32. In addition symbol in Fig. 6,56 represent the nitrogen that freezes.
In the time of the icing covering cooling bench 32 of nitrogen, the nitrogen 56 that freezes plays a kind of heat insulation effect, hinders nitrogen and passes through cooling bench32 liquefaction. So, if produce the nitrogen 56 that freezes on cooling bench 32, in fact the refrigerating capacity of refrigeration machine 30 declines, therefore by coldBut the caloric value of thing 60 exceedes the actual refrigerating capacity of refrigeration machine 30. Therefore, liquid nitrogen 50 evaporates, as shown in Fig. 6 (D), and liquid stateThe liquid level 52 of nitrogen 50 declines.
So, even if the liquid level 52 of liquid nitrogen 50 declines, due to maintain above-mentioned around cooling bench 32, be attached with icingThe state of nitrogen 56, therefore also maintain liquefaction that the nitrogen in cooler bin 20 liquefies by refrigeration machine 30 measure less state (shouldState is shown in Fig. 6 (E)). If maintain for a long time this state, liquid level 52 may decline than common state height NL, and possibly cannotCarry out cooling to cooled object 60 well.
For fear of this situation,
(1) liquid level 52 of the liquid nitrogen 50 in cooler bin 20 be positioned at higher than common state height NL and than liquid level 52 just withWhen the low position of height and position (position shown in Fig. 6 (C)) before cooling bench 32 contact,
Or,
(2) liquid level 52 of the liquid nitrogen 50 in cooler bin 20 is positioned at higher and than saturated vapor temperature than common state height NLThe low position of liquid level (representing with arrow H in Fig. 5) of the liquid nitrogen 50 when degree starts icing temperature corresponding to liquid nitrogen 50While putting,
Liquid nitrogen 50 in cooler bin 20 is evaporated, in other words heat, this is very effective.
At this, again return to Fig. 1 and proceed explanation. In present embodiment, the low temperature side end 44 of conducting-heat elements 40AHeight setting becomes at common state height NL and before freezing between height FL. Particularly, in present embodiment, low temperature sidePortion 44 sets for and is positioned at than the height low a little position of FL before freezing.
Fig. 1 (B) is illustrated in the ultra-low temperature cold radiator cooler 10A of present embodiment, the evaporation capacity of liquid nitrogen 50 and nitrogenDisequilibrium between liquefaction amount and the state that causes the liquid level 52 of liquid nitrogen 50 to rise. The low temperature side end 44 of conducting-heat elements 40AOwing to being arranged at than the height low a little position of FL before freezing, therefore liquid level 52 is before contacting with cooling bench 32, with heat-conducting partThe low temperature side end 44 of part 40A contacts.
As mentioned above, conducting-heat elements 40A is configured to by the good material of thermal conductivity and forms, 44 opposition sides, low temperature side endEnd is that extend to the outside of cooler bin 20 high temperature side end 42. Therefore, the heat of cooler bin 20 outsides is via high temperature side end42 heat conduct to conducting-heat elements 40A, are then passed to low temperature side end 44.
Therefore, if liquid nitrogen 50 contacts with low temperature side end 44 along with the rising of liquid level 52, due to from high temperature sideThe heat conducting heat of portion 42, the evaporation capacity of the time per unit of liquid nitrogen 50 increases. And the liquid level 52 of liquid nitrogen 50 is along with thisThe increase of evaporation capacity and declining.
So, in ultra-low temperature cold radiator cooler 10A, the height of liquid level 52 reach freeze before highly FL (at cooling bench 32The height of the icing nitrogen 56 of upper generation) before, liquid nitrogen 50 automatically contacts and evaporates with conducting-heat elements 40A.
Therefore, the ultra-low temperature cold radiator cooler 10A related according to present embodiment, can suppress the liquid level 52 of liquid nitrogen 50Exceed the front height FL that freezes. And, also can suppress to cause liquid level 52 to decline owing to there is freezing of nitrogen on cooling bench 32To conventionally below state height NL.
Thus, cooling cooled object 60 stably. And conducting-heat elements 40A is rod-like members, its structure is letter verySingle. Therefore, can realize with simple structure evaporation capacity and the liquefaction amount maintenance balance of liquid nitrogen 50.
In addition in above-mentioned embodiment, illustrated the height setting of the low temperature side end 44 of conducting-heat elements 40A logical,Normal state height NL and the example freezing between front height FL. But the height of low temperature side end 44 is not limited to this, also can structureBecome set for higher than common state height NL and while starting icing temperature than saturated-steam temperature corresponding to liquid nitrogen 50The liquid level (representing with arrow H in Fig. 5) of liquid nitrogen 50 is low. By being made as this structure, also can obtain and above-mentioned enforcementThe effect that mode is identical.
Then, utilize Fig. 2 to Fig. 4, other embodiments are described.
In addition, in Fig. 2 to Fig. 4, for the ultra-low temperature cold radiator cooler 10A pair related with the embodiment shown in Fig. 1The structure mark same-sign of answering, and the description thereof will be omitted. And, in each accompanying drawing, (A) illustrate that the liquid level 52 of liquid nitrogen 50 becomesConventionally the state of state height NL, (B) illustrates the state that liquid nitrogen 50 contacts with low temperature side end 44.
In ultra-low temperature cold radiator cooler 10B shown in Fig. 2, on conducting-heat elements 40A, be coated with heat insulating member 70. Exhausted as thisThermal part 70, uses the less material of thermal conductivity factor. Particularly, in present embodiment, FRP (fibre reinforced plastics) is used asHeat insulating member 70. But heat insulating member 70 is not limited to this, as long as thering is non heat conductivity and material that can be low temperature resistant, alsoCan use other materials.
This heat insulating member 70 is disposed in the part of the inside that is positioned at cooler bin 20 of conducting-heat elements 40A. But, for heat conductionThe low temperature side end 44 of parts 40A does not arrange heat insulating member 70.
Particularly be made as following structure: the liquid level that makes at heat insulating member 70 stops the height and position rising, for example, existNear of low temperature side end 44 is provided with peristome 70a, and expose via this peristome 70a low temperature side end 44. Therefore, as above instituteState, cause the liquid level 52 of liquid nitrogen 50 to rise during when disequilibrium between evaporation capacity and liquefaction amount, low temperature side end 44 viaPeristome 70a contacts with liquid nitrogen 50.
As present embodiment, except liquid level is stopped the height and position of rising, with the coated heat conduction of heat insulating member 70Parts 40A, the generation efficiency of the nitrogen can improve thus liquid nitrogen 50 and contact with low temperature side end 44 time. Below, former to itBecause describing.
The nitrogen generating by the evaporation of liquid nitrogen 50 carries out free convection in spatial portion 22. The nitrogen of this free convectionGas contacts with the part to cooler bin 20 interior extensions of conducting-heat elements 40A.
Conducting-heat elements 40A is the heat towards low temperature side end 44 conductive box external body from high temperature side end 42. This heat-conducting partThe temperature of part 40A is lower than the temperature of nitrogen, and therefore the nitrogen of free convection contacts and can cause conducting-heat elements with conducting-heat elements 40AThe temperature of 40A declines, and also declines with the temperature of this low temperature side end 44. Therefore, when liquid nitrogen 50 contacts with low temperature side end 44Time, the nitrogen amount producing in low temperature side end 44 may reduce.
But, as present embodiment, by with the coated conducting-heat elements 40A of heat insulating member 70, can prevent by free convectionThe temperature of the conducting-heat elements 40A that causes of nitrogen decline, can improve thus liquid nitrogen 50 and contact with low temperature side end 44 timeThe generation efficiency of nitrogen.
Then, other embodiments shown in Fig. 3 are described.
In ultra-low temperature cold radiator cooler 10C shown in Fig. 3, on conducting-heat elements 40B, be provided with heat exchange portion 48. This heat exchange portion 48Be arranged at the high temperature side end 42 of conducting-heat elements 40B.
Heat exchange portion 48 has heat radiating fin structure, and the material good by the thermal conductivity such as copper or aluminium forms. As mentioned above, be set asThe surface area that strengthens high temperature side end 42 improves the structure of heat absorption efficiency, but by heat exchange portion being set in this high temperature side end 4248, can further improve the heat absorption efficiency of the outside heat at 42 places, high temperature side end including heat exchange portion 48.
Thus, while contact with liquid nitrogen 50 in low temperature side end 44, can carry out swimmingly the evaporation of liquid nitrogen 50.
In addition, as shown in the figure, also can be made as further setting and carry towards heat exchange portion 48 fan 80 of extraneous airStructure. By this structure, can more effectively carry out the heat exchange between heat and the heat exchange portion 48 of cooler bin 20 outsides.
And, can also adopt the structure that not shown heater is set in heat exchange portion 48. In this structure, due to exchangeHot portion 48 forces heating, therefore can carry out more reliably the intensification of low temperature side end 44.
Then, other embodiments shown in Fig. 4 are described.
In ultra-low temperature cold radiator cooler 10D shown in Fig. 4, be provided with respect to cooler bin 20 and can adjust conducting-heat elements 40AThe height regulating mechanism 90 of height.
As mentioned above, good cooling for cooled object 60 is carried out, the height setting of low temperature side end 44 need be existedConventionally between state height NL and icing front height FL. Now, sometimes need according to the caloric value of cooled object 60, refrigeration machine 30The variation of refrigerating capacity, be received into the saturation etc. of the liquid nitrogen 50 in cooler bin 20, adjust the height of low temperature side end 44.
Height regulating mechanism 90 can carry out this height adjustment. This height regulating mechanism 90 has: sealing mechanism, maintains and leadAirtight conditions between thermal part 40A and cooler bin 20; And moving adjusting mechanism, with respect to cooler bin 20, along verticallyDirection (arrow Z1, Z2 direction) moves adjustment to conducting-heat elements 40A.
So, by the height regulating mechanism 90 of height that can adjust low temperature side end 44 is set, can be according to by coldBut caloric value of thing 60 etc., makes the liquid level 52 of liquid nitrogen 50 in the moment and the low temperature side end 44 that are suitable for most liquid nitrogen 50 is evaporatedContact.
In addition, height regulating mechanism 90 is not limited to be provided with the height regulating mechanism of sealing mechanism and moving adjusting mechanism.For example, also can be configured between conducting-heat elements 40A and cooler bin 20 wrinkle are set, seal airtightly heat conduction by these wrinkleBetween parts 40A and cooler bin 20, and carry out the mobile of conducting-heat elements 40A with respect to cooler bin 20 and adjust.
Above, the preferred embodiment of the present invention is described in detail, but the invention is not restricted to above-mentioned specific enforcement sideFormula, can carry out various distortion, change within the scope of the aim of the present invention of recording in technical scheme scope.
For example in the respective embodiments described above, the bar being made up of the metal material such as copper or aluminium forms conducting-heat elements 40A, 40B,But also can form conducting-heat elements by heater. Now, by by the low temperature side end of heater (with the liquid level 52 of liquid nitrogen 50The end of an opposed side) height setting common state height NL with freeze before highly between FL, can realize with above-mentionedThe effect that each embodiment is identical.
Claims (6)
1. a ultra-low temperature cold radiator cooler, is characterized in that, has:
Cold-producing medium, carries out cooling to cooled object;
Casing, accommodates this cold-producing medium;
Refrigeration machine, is disposed in this casing, carries out cooling to described cold-producing medium; And
Conducting-heat elements, is disposed in described casing, an end extend to the outside of described casing and the other end at described casingInside extend towards the liquid level of cold-producing medium, the heat of described casing outside is imported to the inside of described casing;
Described the other end between the liquid level of described cold-producing medium and the cooling bench of described refrigeration machine, the liquid level of described cold-producing mediumFor under the common state of the cooling liquefaction amount balance producing of the evaporation capacity of described cold-producing medium and the described cold-producing medium of gasificationLiquid level.
2. ultra-low temperature cold radiator cooler according to claim 1, is characterized in that,
The heat insulating member that described conducting-heat elements is had opening is coated.
3. ultra-low temperature cold radiator cooler according to claim 2, is characterized in that,
Described opening is arranged near the other end of described conducting-heat elements.
4. ultra-low temperature cold radiator cooler according to claim 1 and 2, is characterized in that,
Described ultra-low temperature cold radiator cooler is provided with guiding mechanism, and described guiding mechanism is adjusted described conducting-heat elements and described cold-producing mediumLiquid level between distance.
5. ultra-low temperature cold radiator cooler according to claim 1 and 2, is characterized in that,
The position extending outward from described casing at described conducting-heat elements is provided with heat exchanger.
6. ultra-low temperature cold radiator cooler according to claim 1 and 2, is characterized in that,
Described conducting-heat elements is formed by copper or aluminium.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-044532 | 2013-03-06 | ||
| JP2013044532A JP5913157B2 (en) | 2013-03-06 | 2013-03-06 | Cryogenic cooling device and liquid level adjustment mechanism |
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| Publication Number | Publication Date |
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| CN104034076A CN104034076A (en) | 2014-09-10 |
| CN104034076B true CN104034076B (en) | 2016-05-25 |
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| CN201410077094.2A Active CN104034076B (en) | 2013-03-06 | 2014-03-04 | Ultra-low temperature cold radiator cooler |
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| JP2016085014A (en) * | 2014-10-29 | 2016-05-19 | 株式会社日立製作所 | Air conditioning control method and system |
| CN111912132A (en) * | 2020-06-05 | 2020-11-10 | 中国空间技术研究院 | Joule-Thomson refrigerating device and preparation method thereof |
| CN113294953B (en) * | 2021-06-11 | 2022-10-28 | 四川大学华西医院 | Laboratory low temperature cabinet of drawing materials |
| CN117739612A (en) * | 2023-07-12 | 2024-03-22 | 西湖大学 | Liquid helium consumption free circulating refrigerating system and liquid helium temperature zone electron microscope |
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| Publication number | Publication date |
|---|---|
| JP5913157B2 (en) | 2016-04-27 |
| CN104034076A (en) | 2014-09-10 |
| JP2014173755A (en) | 2014-09-22 |
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