CN102109258A - Low-temperature loop heat pipe device - Google Patents
Low-temperature loop heat pipe device Download PDFInfo
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- CN102109258A CN102109258A CN2010102464873A CN201010246487A CN102109258A CN 102109258 A CN102109258 A CN 102109258A CN 2010102464873 A CN2010102464873 A CN 2010102464873A CN 201010246487 A CN201010246487 A CN 201010246487A CN 102109258 A CN102109258 A CN 102109258A
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- 239000007788 liquid Substances 0.000 claims abstract description 146
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims description 16
- 238000005213 imbibition Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
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- 229910052802 copper Inorganic materials 0.000 description 12
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
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- 229910052760 oxygen Inorganic materials 0.000 description 2
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- 239000010935 stainless steel Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
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- 238000002207 thermal evaporation Methods 0.000 description 1
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Abstract
The invention provides an electromagnetic auxiliary starting low-temperature loop heat pipe device (1) which comprises a condenser (11) and an evaporator (13) with a liquid absorption core (132), the condenser (11) is in fluid communication at a first end with the evaporator (13) via a gas connection (14) and at a second end with the evaporator (13) via a liquid connection (12) forming a heat transfer circuit, the low-temperature loop heat pipe device also comprises a gas reservoir (15) which is communicated with the gas connecting pipe (14) in a fluid mode, characterized in that a liquid storage mechanism (161) for storing the liquid from the condenser (11) is arranged between the condenser (11) and the liquid connecting pipe (12), an electromagnetic driving mechanism (16) is provided at the reservoir mechanism for driving the liquid in the reservoir mechanism (161) into the evaporator (13) to activate the low-temperature loop heat pipe device. Compared with the low-temperature loop heat pipe in the prior art, the invention has the advantages of simple structure, convenient control and stable and reliable work.
Description
Technical field
The present invention relates to refrigeration and cryogenic technique field, relate in particular to a kind of cryogenic loop heat pipe device.
Background technology
In the prior art, (Cryogenic Loop Heat Pipe CLHP) is the gas-liquid two-phase heat transfer device in the following profound hypothermia of a kind of 120K of being operated in district to cryogenic loop heat pipe.Hereinafter, cryogenic loop heat pipe abbreviates CLHP as.The circuit system current, that the basic structure of CLHP is made up of evaporimeter, condenser and middle connecting leg is filled with specific working media in the circuit system, this class working media typically comprises nitrogen, oxygen, argon, hydrogen, neon etc.In this circuit system, evaporimeter is connected with thermal source, and condenser is connected with low-temperature receiver, and the evaporimeter internal placement has the imbibition core, and at room temperature internal pressure is too high in order to avoid CLHP, the also external air reservoir that volume is bigger of CLHP.During the CLHP operate as normal, working media exists with gas, liquid two-phase form, gas is condensed into liquid in condenser, liquid is by liquid connecting leg inflow evaporator and be full of the imbibition core, and being subjected to thermal evaporation to become gas at the imbibition core outer surface, gas flows back to condenser by the gas connecting leg, thereby gas, liquid two-phase are circulated in cryogenic loop heat pipe, the heat of thermal source just continuously is transferred to low-temperature receiver like this, realizes low warm transmission.
Because the coefficient of heat transfer of vaporization/condensation phase transition process is higher than heat exchange modes such as convection current, radiation, heat conduction significantly, so CLHP can have higher heat transfer coefficient.At present, adopt the heat transfer thermal conductivity of some device of Cryo Heat Tube circuit theory to reach 40 times of red copper.Under the situation of utilizing flexible tubule as liquid connecting leg and gas connecting leg, CLHP can have flexible ability of conducting heat, that is to say that the low-temperature receiver that this Cryo Heat Tube loop can be connected and fixed and the thermal source of motion perhaps can connect the low-temperature receiver of motion and the thermal source of fixing.This flexible characteristic of conducting heat also makes CLHP can isolate the vibration transmission between low-temperature receiver and the thermal source.Characteristics such as the low-temperature working of CLHP, high heat transfer coefficient, flexible heat transfer, vibration isolation make it have a good application prospect at space industry.
Yet, because the operating temperature of CLHP is lower, therefore when using, existing some specific technical problems, maximum problem is that the start-up course of CLHP from room temperature environment to lower operating temperature is difficult for realizing.Condenser and the low-temperature receiver of CLHP are close, be cooled to operating temperature easily, but evaporimeter are far away apart from low-temperature receiver, are difficult to be cooled to operating temperature.So, the inner liquid that just do not have of evaporimeter exists, and CLHP also just can't start working.At present, have two class solutions at the startup problem of CLHP, the first kind is secondary evaporator of series connection in the CLHP major loop, and second class is secondary evaporator loop in parallel on the CLHP major loop.For example, be CN1648592 at the Chinese patent publication number; And the Chinese patent publication number is that CN1651845 and Chinese patent publication number are open first kind scheme in the patent of invention of CN1651844, utilize the startup of the auxiliary CLHP of secondary evaporator of the close condenser of connecting, its operation principle is: the condenser of CLHP and secondary evaporator at first are cooled near the operating temperature, heat secondary evaporator then and make the certain pressure head of its inner generation, thereby one section condensate stream before the promotion secondary evaporator is to main evaporator, impel the temperature of main evaporator to drop near the operating temperature, then CLHP can operate as normal.U.S. Patent Publication No. is that US2003/0159808A1 and U.S. Patent Publication No. US7004240B1 disclose the above-mentioned second class scheme, utilize the startup of the auxiliary CLHP of secondary evaporator of the close condenser in parallel with major loop, its operation principle is: the condenser of CLHP and secondary evaporator at first are cooled near the operating temperature, heat secondary evaporator then, then the loop at secondary evaporator place (being called secondary circuit) can operate as normal, the operation principle and the major loop of secondary circuit are identical, liquid in the secondary circuit can flow to secondary evaporator from condenser like this, and the position of main evaporator in secondary circuit is between condenser and the secondary evaporator, therefore having liquid flows in the main evaporator, make the temperature of main evaporator drop to gradually near the operating temperature, then CLHP can operate as normal.
Yet above-mentioned first kind scheme is because secondary evaporator is connected in the major loop, and the direction that causes secondary evaporator to promote liquid flow has uncertainty, and the effect that the auxiliary CLHP of secondary evaporator starts is undesirable.In the second class scheme, though it is clear and definite that secondary evaporator promotes the direction of liquid flow, make secondary evaporator can assist CLHP to start well, but owing to increased by one tunnel loop among the whole C LHP, be equivalent to adopt the two-way loop to be used as one tunnel loop and use (secondary circuit is not worked during the CLHP operate as normal), cause the structure more complicated of system.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide a kind of cryogenic loop heat pipe that is easy to start, thereby simplify the structure of cryogenic loop heat pipe, guarantee the effectively start of cryogenic loop heat pipe simultaneously.
Therefore, the invention provides a kind of cryogenic loop heat pipe device, the evaporimeter that it comprises condenser and has the imbibition core, first end of this condenser is communicated with the evaporimeter fluid by the gas connecting leg and its second end is communicated with the formation heat transfer loop by the liquid connecting leg with this evaporimeter fluid, wherein, be provided with the storage liquid mechanism that is used to deposit from the liquid of condenser between condenser and liquid connecting leg, storage liquid mechanism place is provided with electromagnetic drive mechanism, is used for the in-house liquid of storage liquid is driven in evaporimeter.In the present invention, this cryogenic loop heat pipe device also comprises the air reservoir that is communicated with gas connecting leg fluid.
According to the present invention, electromagnetic drive mechanism comprises in the reservoir compartment that is arranged on storage liquid mechanism and the piston component and the driven plunger assembly reciprocating electromagnetic driver in reservoir compartment that match with it.
According to a scheme of the present invention, piston component comprises permanent magnetic piston spare and this permanent magnetic piston spare is remained on the many springs away from the end of described liquid connecting leg of this reservoir compartment that wherein electromagnetic driver is made of winding and iron core.Permanent magnetic piston spare is preferably cylindrical, and the center of this cylindrical magnet piston piece preferably is provided with the conical through-hole towards liquid connecting leg convergent.In a preferred version, the tapering of conical through-hole is set to 30 degree～45 degree, but it will be understood by those skilled in the art that other any suitable angle is also in protection scope of the present invention.
In another scheme of the present invention, reservoir compartment is configured to the conical cavity towards liquid connecting leg convergent, correspondingly, the outer peripheral face of permanent magnetic piston spare is configured to match with the inner peripheral surface of this reservoir compartment, be about to permanent magnetic piston spare and be configured to the cone that matches with reservoir compartment, thereby the permanent magnetic piston assembly can be moved around in reservoir compartment.In this scheme, the tapering of the inner peripheral surface of reservoir compartment is preferably 5 degree～15 degree.Certainly, also can adopt other suitable angle.
In another scheme according to the present invention, permanent magnetic piston spare is preferably cylindrical, and the center of this cylindrical magnet piston piece preferably is provided with through hole, on the end face of liquid connecting leg, be provided with the elasticity cover plate at permanent magnetic piston spare, this elasticity cover plate is configured to can close this through hole when piston piece when this liquid connecting leg moves, and can open this through hole when piston piece when the direction of leaving the liquid connecting leg moves.Here, through hole can be designed to Any shape, for example is designed to the conical through-hole towards liquid connecting leg convergent.
According to another program of the present invention, the reservoir compartment of storage liquid mechanism is separated into first chamber by partition wall and near second chamber of this liquid connecting leg, is provided with the conical through-hole away from this liquid connecting leg convergent in the center of this partition wall.In addition, electromagnetic drive mechanism comprises the first piston assembly that is arranged in first chamber and matches with it and drives this first piston assembly reciprocating first electromagnetic driver in this first chamber, with be arranged in this second chamber and second piston component that matches with it and drive this second piston component reciprocating second electromagnetic driver in second chamber, the direction of motion in chamber separately that described electromagnetic mechanism is configured to this first piston assembly and this second piston component is consistent.
Advantageously, the first piston assembly comprises the first permanent magnetic piston spare and the many springs away from the end of liquid connecting leg that this first permanent magnetic piston spare remained on this reservoir compartment, second piston component comprises and matches the conical through-hole of shape and partition wall center merge can be with the second permanent magnetic piston spare of its closure, and this second permanent magnetic piston spare remained attached to many springs on this second chamber wall, wherein said electromagnetic driver constitutes by winding and iron core.
Since cryogenic loop heat pipe device of the present invention adopt operation principle simple, control easily that electromagnetic drive mechanism replaces secondary evaporator of the prior art loop, to realize liquid is driven into from condenser the function of evaporimeter.When this cryogenic loop heat pipe device when room temperature begins to start, liquid at first accumulates in the condenser, pass to alternating current to the winding in the electromagnetic actuator device this moment, then the iron core of electromagnetic actuator device can produce alternating magnetic fields, the permanent magnet of electromagnetic actuator device is under the acting in conjunction of this alternating magnetic fields and spring force, can in the Electromagnetic Drive metal cavitg, move back and forth, thereby the liquid in the condenser continuously is pumped in the liquid connecting leg, and then be pumped in the evaporimeter, can finish the startup of cryogenic loop heat pipe.Compare with cryogenic loop heat pipe of the prior art, the present invention is simple in structure, and working stability is reliable, therefore is fit to be applied to space industry.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation according to an embodiment of cryogenic loop heat pipe device of the present invention;
Fig. 2 is the structural representation according to first embodiment of the electromagnetic drive mechanism of cryogenic loop heat pipe device of the present invention;
Fig. 3 is the structural representation according to second embodiment of the electromagnetic drive mechanism of cryogenic loop heat pipe device of the present invention;
Fig. 4 is the structural representation according to the 3rd embodiment of the electromagnetic drive mechanism of cryogenic loop heat pipe device of the present invention;
Fig. 5 is the structural representation according to the 4th embodiment of the electromagnetic drive mechanism of cryogenic loop heat pipe device of the present invention;
Fig. 6 is the structural representation according to the 5th embodiment of the electromagnetic drive mechanism of cryogenic loop heat pipe device of the present invention.
The specific embodiment
Referring to Fig. 1, show structural representation according to an embodiment of cryogenic loop heat pipe device of the present invention.As can be seen from Figure 1, totally comprise evaporimeter 13 and the condenser 11 that fluid is communicated with the 1 cryogenic loop heat pipe device that indicates, one end of condenser 11, the upper end of preferred condenser is communicated with an end fluid of evaporimeter 13 by gas connecting leg 14, the other end of this condenser, preferred condenser lower end is communicated with evaporimeter 13 fluids by liquid connecting leg 12, thereby forms heat transfer loop between evaporimeter 13 and condenser 11.In addition, at room temperature internal pressure is too high for fear of the cryogenic loop heat pipe device, also is circumscribed with the air reservoir 15 that is communicated with its fluid at gas connecting leg 14 places, and this air reservoir is in the room temperature environment.The structure of air reservoir is well known to those skilled in the art, here repeats no more.
In this embodiment, condenser 11 is made up of copper plate 111 and the copper tube coil 112 that is welded on this copper plate, those skilled in the art should be understood that, condenser is equivalent to a kind of heat exchanger, can adopt any structure form that is similar to heat exchanger, can adopt other any suitable structure and material,, for example can adopt other low temperature resistant Heat Conduction Material such as aluminium to make condenser as long as in the future the gas working medium of flash-pot is condensed into liquid.In addition, in this embodiment, evaporimeter 13 for example is configured to cylinder, it is included in a plurality of axial gas conduits 131 that cutting forms on its circumferential inner surface, the cup-shaped imbibition core of in cylinder chamber, placing 132 with described a plurality of axial gas conduit 131 coaxial cooperation, and form by the chamber 133 that this imbibition core wall surrounds.Equally, the structure that should be appreciated that above-mentioned evaporimeter 13 only is exemplary, and other any suitable structure all is feasible, as long as make evaporimeter the liquid from the liquid connecting leg can be flashed to liquid.In addition, the structure of imbibition core 132 also is well known to those skilled in the art, and the imbibition core for example can be the porous sintered structure of stainless steel in the present invention, and structure example that other is suitable such as silk screen or other loose structure are also contained within the scope of the invention.Moreover, can be stainless-steel thin-wall pipe according to liquid connecting leg 12 of the present invention and gas connecting leg 14, described connecting leg also can by other metal material for example copper become.Moreover, it will be understood by those skilled in the art that because this device is to work therefore, the used material of liquid connecting leg and gas connecting leg and other member all should be adapted at work under such low temperature environment under the low temperature environment of 20K-120K.
By above-mentioned configuration, make the reservoir compartment, liquid connecting leg 12 of copper tube 112, storage liquid mechanism 161, the chamber 133, imbibition core 132, gas conduit 131 and the gas connecting leg 14 that surround by this imbibition core wall form a closed-loop path, fill the working medium of suitable kind, suitable pressure in this closed-loop path, for example nitrogen, oxygen, neon, hydrogen, helium etc. make the saturation temperature of working medium and the operating temperature approximately equal of cryogenic loop heat pipe device.At present, cryogenic loop heat pipe has two kinds of operating temperature ranges usually, and promptly temperature range is at the liquid nitrogen temperature of 80K～120K and the liquid hydrogen warm area of 20K～40K.According to the characteristics of cryogenic loop heat pipe, the working medium in the chamber 133 of evaporimeter 13 can be in saturation state usually, and is perhaps effective slightly cold excessively, so the temperature in this chamber 113 can equal saturation temperature all the time.Therefore, the pressure basically identical in the whole loop of cryogenic loop heat pipe device, thus can produce a unified saturation pressure and corresponding saturation temperature.In the present invention, for example adopt nitrogen as working medium, saturation pressure (being operating pressure) is generally 0.2MPa～0.8MPa, and corresponding saturation temperature is generally 80K～100K.
Advantageously, be provided with the storage liquid mechanism 161 of the condensed fluid in the self cooling condenser 11 of collecting between the other end of condenser and liquid connecting leg 12, this storage liquid mechanism 161 is configured to the form of cylinder body usually, and the inner chamber of cylinder body forms the reservoir compartment of storage liquid mechanism.More advantageously, be equiped with electromagnetic drive mechanism 16 at these storage liquid mechanism 161 places, the liquid that is used for storing in the reservoir compartment drives through liquid connecting leg 12 sends into evaporimeter 13.Particularly, this electromagnetic drive mechanism 16 comprises the piston component 162 in the reservoir compartment that is arranged on storage liquid mechanism 161, and be installed in electromagnetic driver 163 away from an end outside of liquid connecting leg 12 in storage liquid mechanism 161, be used for driven plunger assembly 162 and in reservoir compartment, move back and forth.
In the present embodiment, when cryogenic loop heat pipe device 1 operate as normal, all gas in gas conduit 131, gas connecting leg 14 and the air reservoir 15, wherein only have the operating temperature of air reservoir 15 can be room temperature, the operating temperature of other parts is 80K～100K for example in the design work temperature range of cryogenic loop heat pipe device 1 all.In the reservoir compartment of storage liquid mechanism 161 and the liquid connecting leg 12 all is liquid, and operating temperature is all in the design work temperature range of cryogenic loop heat pipe device 1.In the evaporimeter chamber 133 is the gas-liquid coexisting state, its operating temperature is the saturation temperature of the operating pressure correspondence of cryogenic loop heat pipe device 1, and have three kinds of flow regimes in the copper tube 112, be respectively superheated vapor section near the gas access, be positioned near the middle part the biphase gas and liquid flow section and near the subcooled liquid section of liquid outlet.
As shown in Figure 2, in first embodiment of electromagnetic drive mechanism 16, the reservoir compartment of storage liquid mechanism 161 is constructed to cylindrical cavity, piston component 162 comprises the cylindrical magnet piston piece of being made by permanent magnet 1621, and the many springs 1622 that this permanent magnetic piston spare remained on reservoir compartment away from the end of liquid connecting leg 12, permanent magnetic piston spare and copper tube 112 should be arranged to can not block at permanent magnetic piston spare the liquid outlet of copper tube 112, thereby after this cryogenic loop heat pipe device starts, liquid in the copper tube 112 can flow to the liquid connecting leg swimmingly, arrives evaporimeter subsequently swimmingly.In addition, electromagnetic driver 163 comprises iron core 1632 and is wound on winding 1631 on this iron core.When cryogenic loop heat pipe device 1 when room temperature begins to start, in the copper tube 112 of condenser 11 liquid condensation is arranged at first, pass to alternating current to the winding in the electromagnetic drive mechanism 16 1631 this moment, then the iron core 1632 of this electromagnetic drive mechanism can produce alternating magnetic fields, the permanent magnetic piston spare 1621 of this electromagnetic drive mechanism 16 is under the acting in conjunction of this alternating magnetic fields power and spring force, can in sealed hollow 161, move back and forth, thereby the liquid that condenses in the copper tube 112 continuously is pumped in the liquid connecting leg 12, and then be pumped in the evaporimeter 13, can finish the startup of cryogenic loop heat pipe 1.After cryogenic loop heat pipe 1 starts, can stop the work of electromagnetic drive mechanism 16.In this embodiment, when guaranteeing that piston piece moves away from the liquid connecting leg, liquid can in time add in the reservoir compartment between liquid connecting leg and the piston piece, should leave certain interval between piston piece and the reservoir compartment wall, and the speed of piston in this stroke is slow relatively.
In the above-mentioned course of work, the service pressure of cryogenic loop heat pipe device 1 is generally MPa0.1～1MPa, can calculate the working medium charge pressure of cryogenic loop heat pipe 1 under the room temperature in view of the above, and the working medium charge pressure is not more than for example 10MPa.In addition, in this embodiment, the volume of the cavity 151 of air reservoir is designed so that the room temperature pressure of cryogenic loop heat pipe 1 is no more than 10 times of service pressure.
Referring to Fig. 3, show second embodiment according to electromagnetic drive mechanism 16 of the present invention, as can be seen from the figure, except the structure of permanent magnetic piston spare, other parts and first embodiment of this electromagnetic drive mechanism 16 are similar.In a second embodiment, in order to strengthen the liquid pumping effect of electromagnetic drive mechanism 16, be provided with the conical through-hole 1623 towards liquid connecting leg 12 convergents in the center of cylindrical piston spare 1621, the tapering of this conical through-hole 1632 is preferably 30 °～45.This configuration of conical through-hole 1632 makes permanent magnetic piston spare 1621 when moving back and forth, in the motion process of liquid connecting leg 12, comparing with the motion process that deviates from liquid connecting leg 12, the flow through flow resistance of this conical through-hole of liquid is bigger, therefore liquid is more prone to the direction motion to liquid connecting leg 12, thereby makes the liquid pumping effect of electromagnetic drive mechanism 16 better.
Referring to Fig. 4, show among the 3rd embodiment according to electromagnetic drive mechanism 16 of the present invention, as can be seen from the figure, with different among first embodiment be, in order to strengthen the liquid pumping effect of electromagnetic drive mechanism 16, reservoir compartment is configured to the conical cavity towards described liquid connecting leg 12 convergents, and the tapering of this conical cavity is preferably about 5 °～15 °, and promptly the less end of the diameter of this conical cavity is towards liquid connecting leg 12.Correspondingly, permanent magnetic piston spare 1621 is configured to its outer peripheral face and matches with the inner peripheral surface of conical reservoir compartment, thereby this permanent magnetic piston spare 1621 can be moved back and forth in this taper shape reservoir compartment.Above-mentioned configuration makes permanent magnetic piston spare 1621 when moving back and forth, motion process towards liquid connecting leg 12 is compared with the motion process that deviates from liquid connecting leg 12, the flow through flow resistance in the space between permanent magnetic piston spare and the reservoir compartment of liquid is bigger, therefore liquid is more prone to the direction motion to liquid connecting leg 12, thereby the liquid pumping effect of electromagnetic actuator device 16 is better.
Referring to Fig. 5, show structural representation according to the 4th embodiment of electromagnetic drive mechanism 16 of the present invention.This embodiment is the further improvement to second embodiment shown in Fig. 3, by elasticity cover plate 1625 is set on the end face of liquid connecting leg 12 at permanent magnetic piston spare 1621, one end of this elasticity cover plate 1625 is fixed on the top of conical through-hole 1623 by securing member 1624, make under the situation that this elasticity cover plate 1625 does not stress, can cover this conical through-hole 1623.Therefore, when permanent magnetic piston spare 1621 when liquid connecting leg 12 moves, elasticity cover plate 1625 closes this conical through-hole 1623 under the effect of fluid pressure, thereby increases the motive force to liquid of permanent magnetic piston spare 1621; And when permanent magnetic piston spare 1621 moves along the direction of leaving this liquid connecting leg 12, the liquid that flows through from conical through-hole 1623 is washed this elasticity cover plate 1625 (the specifically elasticity cover plate that marks referring to dashed lines among Fig. 5) open thereby this conical through-hole is opened, make liquid can flow through this conical through-hole, thus the resistance when reducing by 1621 travelling backwards of permanent magnetic piston spare.Those skilled in the art should be understood that, the cooperation of elasticity cover plate, through hole 1623 and piston piece is equivalent to check valve, in this case, guaranteeing under the prerequisite that piston piece can move freely in reservoir compartment between the outer peripheral face of piston piece and the reservoir compartment wall, preferably be configured to leave less clearance between piston piece and the reservoir compartment wall, thereby at piston piece when liquid connecting leg direction moves, liquid is the influent connecting leg as much as possible, and when piston piece moved away from the liquid connecting leg, liquid can enter between liquid connecting leg and the piston piece by through hole as much as possible.For this reason, at this embodiment, conical through-hole 1623 also can be replaced by other any suitable shape, for example manhole, square through hole or other uiform section hole.So the electromagnetic drive mechanism 16 of configuration makes when permanent magnetic piston spare 1621 moves back and forth, liquid in reservoir compartment general inclination in direction motion towards liquid connecting leg 12, thereby strengthened the liquid pumping effect of electromagnetic drive mechanism 16.
Fig. 6 shows the 5th embodiment according to electromagnetic drive mechanism 16 of the present invention, as can be seen from the figure, the storage liquid mechanism reservoir compartment of cryogenic loop heat pipe device is separated into the second chamber 161b of the first chamber 161a and close this liquid connecting leg 12 by partition wall, be provided with the conical through-hole 1614 of court away from the direction convergent of liquid connecting leg 12 in the center of partition wall, and electromagnetic drive mechanism comprises the first piston assembly 162a that is arranged in this first chamber 161a and matches with it and drives first piston assembly 162a reciprocating first electromagnetic driver 163a in first chamber, with be arranged in this second chamber 161b and the second piston component 162b that matches with it and drive this second piston component 162b reciprocating second electromagnetic driver 163b in this second chamber, the direction of motion in chamber separately that electromagnetic mechanism is configured to this first piston assembly 162a and this second piston component 162b is consistent.Particularly, first piston assembly 162a comprises the first permanent magnetic piston spare 1621 and the many springs away from the end of liquid connecting leg 12 that the first permanent magnetic piston spare remained on this reservoir compartment, the second piston component 162b comprises and matches the conical through-hole 1614 of shape and partition wall center merge can be with the second permanent magnetic piston spare 1613 of its closure, and this second permanent magnetic piston spare 1613 is remained attached to many springs 1612 on the secondth chamber wall.Be similar to the foregoing description, electromagnetic driver 163a, 163b constitutes by winding 1631 and iron core 1632, and drive principle is also identical with the various embodiments described above.The above-mentioned second chamber 161b, the second piston component 162b and the second electromagnetic driver 163b constitute magnetic valve in fact, enter in the liquid connecting leg thereby help liquid.
Advantageously, in this embodiment, referring to Fig. 6, the tapering of the second permanent magnetic piston assembly, 1612 heads is preferably 60 °～80 °, by suitable magnetic Circuit Design, for example with electromagnetic driver 163a, the windings in series of 163b, when the winding direction of winding is designed to allow the first permanent magnetic piston spare 1621 be subjected to repulsive force, the second permanent magnetic piston spare 1613 is subjected to attraction, make and win permanent magnetic piston spare 1621 when 12 motions of liquid connecting leg, the second permanent magnetic piston spare 1613 moves towards liquid connecting leg 12 equally, thereby makes conical through-hole 1614 be in unimpeded state; And when the first permanent magnetic piston spare 1621 dorsad during liquid connecting leg 12 motion, liquid connecting leg 12 motions equally dorsad of the second permanent magnetic piston spare 1612, thereby sealing conical through-hole 1614.Be arranged so that so permanent magnetic piston spare 1621 is when moving back and forth for the first time, liquid tends to the direction motion to liquid connecting leg 12 generally in electromagnetic actuator device, and the liquid pumping effect of electromagnetic actuator device 16 is better.Here, conical through-hole 1614 also can be designed to other shape, and the second permanent magnetic piston spare 1621 is designed to the shape that matches with it.
In the various embodiments described above; though shown in Fig. 2 to Fig. 6 be by be connected near the Elastic Strength Pressure of many springs on the reservoir compartment sidewall of liquid connecting leg just permanent magnetic piston spare remain on the end away from the liquid connecting leg of reservoir compartment; but those skilled in the art should be understood that; these springs are connected on the reservoir compartment sidewall away from the liquid connecting leg also are encompassed in protection scope of the present invention, as long as spring is configured to permanent magnetic piston spare to be remained on that end away from the liquid connecting leg.In addition, other any suitable connected mode also allows.
Although narrated the multiple specific embodiment of the present invention herein, should be realized that these specific embodiment only are description of this invention explanations, and do not limit content of the present invention.Those skilled in the art under the prerequisite that does not depart from spirit of the present invention and purport to any change of the above specific embodiment or change all in the protection domain that claim of the present invention is advocated.
Claims (10)
1. a cryogenic loop heat pipe device (1), the evaporimeter (13) that it comprises condenser (11) and has imbibition core (132), first end of this condenser (11) is communicated with this evaporimeter (13) fluid by gas connecting leg (14) and its second end is communicated with the formation heat transfer loop by liquid connecting leg (12) with this evaporimeter (13) fluid, this cryogenic loop heat pipe device comprises that also the air reservoir (15) that is communicated with this gas connecting leg (14) fluid is characterized in that, between this condenser (11) and this liquid connecting leg (12), be provided with the storage liquid mechanism (161) that is used to deposit from the liquid of this condenser (11), this storage liquid mechanism place is provided with electromagnetic drive mechanism (16), is used for the liquid in this storage liquid mechanism (161) is driven in described evaporimeter (13).
2. cryogenic loop heat pipe device according to claim 1 (1), it is characterized in that described electromagnetic drive mechanism (16) comprises the piston component (162) that the reservoir compartment that is arranged on this storage liquid mechanism (161) is interior and match with it and drives this piston component (162) reciprocating electromagnetic driver (163) in reservoir compartment.
3. cryogenic loop heat pipe device according to claim 2 (1), it is characterized in that, this piston component (162) comprises permanent magnetic piston spare (1621) and this permanent magnetic piston spare is remained on the many springs (1622) away from the end of described liquid connecting leg (12) of this reservoir compartment that wherein said electromagnetic driver (163) is made of winding (1631) and iron core (1632).
4. cryogenic loop heat pipe device according to claim 3 (1), it is characterized in that, described permanent magnetic piston spare (1621) is cylindrical, and the center of this cylindrical magnet piston piece (1621) is provided with the conical through-hole (1623) towards this liquid connecting leg (12) convergent.
5. cryogenic loop heat pipe device according to claim 4 (1) is characterized in that, the tapering of this conical through-hole is 30 degree～45 degree.
6. cryogenic loop heat pipe device according to claim 3 (1), it is characterized in that, described reservoir compartment is configured to the conical cavity towards described liquid connecting leg (12) convergent, and the outer peripheral face of this permanent magnetic piston spare (1621) is configured to match with the inner peripheral surface of this reservoir compartment.
7. cryogenic loop heat pipe device according to claim 6 (1) is characterized in that, the tapering of the inner peripheral surface of described reservoir compartment is 5 degree～15 degree.
8. cryogenic loop heat pipe device according to claim 3 (1), it is characterized in that, described permanent magnetic piston spare (1621) is cylindrical, the center of this cylindrical magnet piston piece (1621) is provided with through hole (1623), on the end face of this liquid connecting leg (12), be provided with elasticity cover plate (1625) at this permanent magnetic piston spare (1621), it is configured to close this through hole (1623) when this piston piece (1621) when this liquid connecting leg (12) is mobile, when this piston piece (1621) can be opened this through hole (1623) when the direction of leaving this liquid connecting leg (12) moves.
9. cryogenic loop heat pipe device according to claim 1 (1), it is characterized in that, the reservoir compartment of described storage liquid mechanism is separated into first chamber (161a) by partition wall and near second chamber (161b) of this liquid connecting leg (12), is provided with the conical through-hole (1614) away from this liquid connecting leg (12) convergent in the center of this partition wall; Described electromagnetic drive mechanism comprises the first piston assembly (162a) that is arranged in this first chamber (161a) and matches with it and drives this first piston assembly (162a) reciprocating first electromagnetic driver (163a) in this first chamber; With second piston component (162b) that is arranged in this second chamber (161b) and matches with it and drive this second piston component (162b) reciprocating second electromagnetic driver (163b) in this second chamber, the direction of motion in chamber separately that described electromagnetic mechanism is configured to this first piston assembly (162a) and this second piston component (162b) is consistent.
10. cryogenic loop heat pipe device according to claim 9 (1), it is characterized in that, this first piston assembly (162a) comprises first permanent magnetic piston spare (1621) and the many springs away from the end of described liquid connecting leg (12) that this first permanent magnetic piston spare remained on this reservoir compartment, this second piston component (162b) comprises and matches the conical through-hole (1614) of shape and partition wall center merge can be with the second permanent magnetic piston spare (1613) of its closure, and this second permanent magnetic piston spare (1613) remained attached to many springs (1612) on the secondth chamber wall, (163a 163b) constitutes by winding and iron core wherein said electromagnetic driver.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010246487 CN102109258B (en) | 2010-08-05 | 2010-08-05 | Low-temperature loop heat pipe device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010246487 CN102109258B (en) | 2010-08-05 | 2010-08-05 | Low-temperature loop heat pipe device |
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| CN102109258A true CN102109258A (en) | 2011-06-29 |
| CN102109258B CN102109258B (en) | 2013-03-13 |
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| CN107535077A (en) * | 2015-09-01 | 2018-01-02 | 戴尔产品有限公司 | Wireless power antenna and its manufacture method including heat pipe |
| CN108225073A (en) * | 2018-02-26 | 2018-06-29 | 华南理工大学 | The pulsating heat pipe and its operation method of a kind of integrated check valve |
| CN108519009A (en) * | 2018-04-13 | 2018-09-11 | 中国科学院理化技术研究所 | heat pipe device |
| CN108645886A (en) * | 2018-05-31 | 2018-10-12 | 中国科学院理化技术研究所 | Experimental device for low-temperature fluid condensation and flow visualization |
| CN111912267A (en) * | 2020-06-24 | 2020-11-10 | 西安交通大学 | Magnetic driving heat pipe of nano magnetic fluid |
| CN113513934A (en) * | 2021-06-30 | 2021-10-19 | 西安交通大学 | Gravity heat pipe based on double-power-driven enhanced heat transfer |
| CN114520473A (en) * | 2020-11-19 | 2022-05-20 | 宁波博尔雅电子材料科技有限公司 | Heat dissipation case with high-efficient radiating effect |
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| CN111912267A (en) * | 2020-06-24 | 2020-11-10 | 西安交通大学 | Magnetic driving heat pipe of nano magnetic fluid |
| CN114520473A (en) * | 2020-11-19 | 2022-05-20 | 宁波博尔雅电子材料科技有限公司 | Heat dissipation case with high-efficient radiating effect |
| CN114520473B (en) * | 2020-11-19 | 2024-10-18 | 宁波博尔雅电子材料科技有限公司 | Radiating box with efficient radiating effect |
| CN113513934A (en) * | 2021-06-30 | 2021-10-19 | 西安交通大学 | Gravity heat pipe based on double-power-driven enhanced heat transfer |
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