CN110470159A - A kind of heat pipe of condensation end length gradual change - Google Patents
A kind of heat pipe of condensation end length gradual change Download PDFInfo
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- CN110470159A CN110470159A CN201910883520.4A CN201910883520A CN110470159A CN 110470159 A CN110470159 A CN 110470159A CN 201910883520 A CN201910883520 A CN 201910883520A CN 110470159 A CN110470159 A CN 110470159A
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- liquid
- heat pipe
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- package
- heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
Abstract
The present invention provides a kind of heat pipe, including package, there is heat source and phase-change material in the package, the heat source is enclosed in the inside of phase-change material, and the evaporation ends of the heat pipe are arranged in phase-change material, and the condensation end of heat pipe extends the outside for being pierced by package；It is characterized in that, the heat pipe is set as multiple along short transverse, along short transverse, the length for stretching out the condensation end of heat pipe of package is continuously increased.The present invention has determined the design formula of optimization according to the length variation largely determined along short transverse condensation end of heat pipe, enables to heat dissipation more evenly, extends server service life.
Description
Technical field
The present invention relates to heat pipe fields, and in particular to a kind of hot pipe technique of condensation end length gradual change.
Background technique
Hot pipe technique is George Ge Luofo of U.S. Los Alamos (Los Alamos) National Laboratory in 1963
One kind of (George Grover) invention is known as the heat transfer element of " heat pipe ", it takes full advantage of heat-conduction principle and phase transformation is situated between
The heat of thermal objects is transmitted to outside heat source rapidly by the quick thermal transport property of matter through heat pipe, and the capacity of heat transmission is more than to appoint
The capacity of heat transmission of what known metal.
The industries such as aerospace, military project were widely used in front of hot pipe technique, since being introduced into radiator manufacturing, so that
People change the mentality of designing of traditional heat sinks, get rid of the list for obtaining more preferable heat dissipation effect by high air quantity motor merely
One radiating mode makes radiator obtain satisfied heat transfer effect using hot pipe technique, opens heat dissipation industry new world.At present
Heat pipe is widely used in various heat exchange equipments.
Heat pipe is in heat transfer process, and heat pipe is because position difference causes uneven heating even, and generation can not efficiently use, therefore
It needs to carry out new improvement.
Summary of the invention
One of main object of the present invention is to provide a kind of new heat pipe, improves the heat exchange property and service life of heat pipe.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of heat pipe, including package, the package is interior to have heat source and phase-change material, and the heat source is enclosed in phase-change material
Inside, the evaporation ends of the heat pipe are arranged in phase-change material, and the condensation end of heat pipe extends the outside for being pierced by package；Its
It is characterized in that, along short transverse, the heat pipe is set as multiple, along short transverse, stretches out the condensation end of heat pipe of package
Length be continuously increased.
Preferably, the ever-increasing amplitude of the length of condensation end of heat pipe is increasing along short transverse.
Preferably, the height of package is H, along short transverse, the condensation end length of the heat pipe of package least significant end
It is L, then distance packaged case the lowest distance is that the condensation end length l rule of the heat pipe of the position h is as follows: l=L+b*L*(h/H)a,
Wherein a, b are coefficients, meet following require:
1.23<a<1.45,0.35<b <0.38。
A kind of immersion " quadrangle tangential circle " fills from flow-disturbing cooling system the system comprises cabinet, liquid distributing device, from flow-disturbing
It sets and liquid collector, the cabinet is equipped with coolant liquid inlet and coolant liquid liquid outlet, the coolant liquid inlet and liquid separation dress
It sets and is connected, the liquid distributing device is connected with from disturbing flow device, and the liquid collector is located at the cooling-liquid level on cabinet top
Lower section, the liquid collector are connected with coolant liquid liquid outlet, and the insulating and cooling liquid passes sequentially through coolant liquid inlet, liquid separation
It device and enters in cabinet, is flowed out by liquid collector from coolant liquid liquid outlet, server is immersed in cabinet from disturbing flow device
It is carried out cooling heat in interior insulating and cooling liquid；The liquid distributing device includes liquid separation main pipe and jet pipe, the liquid separation main pipe and
Coolant liquid inlet is connected；
Described is " quadrangle tangential circle " from disturbing flow device from disturbing flow device, is placed on the perpendicular of four angles of cabinet including four jet pipes
Histogram is upward, and jet pipe lower ending opening is connected with liquid separation main pipe, upper port sealing；
A discharge discharge orifice is provided on the jet pipe on vertical direction, the jet hole opening direction is successively including server institute
The direction of the tangential direction of the circle of contact, the jet hole on two jet pipes in diagonal angle is parallel two-by-two.
Preferably, the liquid distributing device includes liquid separation branch pipe, the liquid separation arms parallel is arranged, both ends open and liquid separation
Main pipe side wall is connected, and the liquid separation main pipe and liquid separation branch pipe are all the bottoms for being arranged horizontally in cabinet；On the liquid separation branch pipe
Tube wall is provided with the evenly arranged tap hole of a line along pipe range direction.
Preferably, the jet pipe can rotate.
Preferably, the liquid collector is made of collecting pipe, and it is hollow tubular inside the collecting pipe, external presentation side
Frame shape, the collecting pipe liquid outlet on the collecting pipe are connected with coolant liquid liquid outlet.
Preferably, the collecting pipe outside wall surface is close to cabinet inner wall, four inner walls of collecting pipe are provided with evenly distributed
Confluence hole.
With the fast development of cloud storage technology, the packing density of computer room of internet data center was higher and higher in recent years,
But the problem that heating power is high, heat flow density is big is also brought therewith, cause server element temperature to increase, to keep service
The operation of device efficient stable, needs to carry out the more effective type of cooling to it.The air-cooled technology of traditional server increasingly cannot
Meet people for energy-efficient requirement, the power consumption of data center has one third or more to be used for cooling server.
In order to more effectively be radiated to server, is come into being, adopted using the immersion cooling technology of direct liquid cooling
With being integrally immersed in server in the cabinet full of insulation and the stable coolant liquid of performance, insulating and cooling liquid is direct with server
Contact, the heat that takeaway service device sheds, then insulating and cooling liquid is cooled down by outer circulation radiator, it is held to realize
Continue efficient cooling effect.
Immersion cooling is compared with traditional computer room wind-cooling heat dissipating mode, since the heat exchange efficiency of coolant liquid is air
1000 times, and calculate equipment and be not necessarily to fan, interior is not necessarily to additional air-conditioning, can save 20%-30% electricity.Immersion cooling technology
It is compared with using the board-like cooling technology of water cooling of indirect liquid cooling, cooling performance is higher, lets out without considering that coolant liquid seals
The risk of dew.It is obtained substantially in addition, server system is fully immersed in the design of sealing liquid environment so that calculating deployment density
Degree promoted, CPU and GPU calculating unit can long-term stable work in high performance frequency state, and almost exempt humidity, ash
Dirt, vibration influence, greatly optimize server running environment, the lifting means service life.
However, coolant liquid slave bottom of cabinet portion flows up submergence server in existing server immersion liquid cooling technology
It is cooled down, the flow field on vertical direction is relatively uniform, lacks corresponding disturbance in the horizontal direction, and server submergence cooling is changed
The performance of heat can be promoted further.The present invention is based on " quadrangle tangential circle " principles to provide one kind from flow-disturbing technology, to enhance
Disturbance of the coolant liquid in cabinet flow field, improves server cooling and cooling effect." quadrangle tangential circle " basic ideas are as follows: one
Ray is drawn on four vertex of a rectangle into rectangle respectively, and the ray that wherein point of diagonal angle is drawn is parallel to each other, then this
Two groups of parallel lines, which intersect one parallelogram in besieged city or rectangle, this parallelogram or rectangle in rectangle inside, to be had in one
The circle of contact or inner ellipse.Likewise, if fluid is ejected along two groups of directions of rays in four vertex at four angles, this four groups
Fluid will mix at inscribed circle, and flow direction and inscribed circle tangential direction match, and form annular flow one by one
Gyrate flow field, to strengthen the level of disruption of fluid.Based on the above thinking, we have invented new hot pipe techniques.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention is according to the length variation largely determined along short transverse condensation end of heat pipe, and has determined optimal
The design formula of change enables to heat dissipation more evenly, extends server service life.
2) present invention utilizes " quadrangle tangential circle " principles, are arranged on four angle vertical directions of cabinet from disturbing flow device, penetrate
The insulating and cooling liquid that discharge orifice ejects surrounds server in the horizontal direction and forms annularly flow, the annular disturbance of formation and from
The coolant liquid that cabinet bottom uniformly rises mixes, and makes coolant liquid around server spiral escalation, enhances cooling in cabinet
The strength of turbulence of liquid stream field.To a certain extent, disturbance is stronger, and heat exchange property is better, and heat exchange efficiency is higher.
3) " quadrangle tangential circle " of the invention is not necessarily to the devices such as additional fans or pump from the annular disturbance that disturbing flow device is formed, and does not have
Operating noise, itself can be completed.
4) liquid distributing device of the present invention is made of liquid separation main pipe and liquid separation branch pipe, and tubular runner is more advantageous to fluid flowing, resistance
Power is relatively small, is more advantageous to coolant liquid and is uniformly distributed；Liquid separation branch pipe is evenly laid out in cabinet bottom, and coolant liquid passes through tap hole
Discharge upwards, flows up coolant liquid uniformly, reduces the appearance of flow dead zone.
5) collecting pipe of the present invention is square frame-shaped, and outside wall surface is close to cabinet wall, and inner wall has a circle to converge hole, makes same level
Coolant liquid on face uniformly quickly reaches confluence hole and enters in collecting pipe, flows out and is carried out in next step finally by collecting pipe liquid outlet
Circulation, reduce the appearance of flow dead zone.
6) present invention is enabled to according to the variation largely determined along short transverse spray-hole density size
Heat dissipation more evenly, extends server service life.
7) present invention transports the heat of server generation using heat pipe, liquid phase-change heat transfer is utilized, compared to routine
Heat convection has heat dissipation response speed faster, while also having higher radiating efficiency, and it is close can to well solve high hot-fluid
The heat dissipation problem of the server of degree.
8) server is packaged in the server package filled with phase-change material by the present invention, and it is each to can solve server
The unequal problem of heat flow density that component generates makes whole system have good uniform temperature.Simultaneously because server encapsulates
Case is immersed in insulating and cooling liquid, eliminates the influence to server such as dust, and server running environment is greatly optimized, clothes
The calculated performance of device of being engaged in and service life can be improved.
9) this programme combines the cooling of condensation end of heat pipe with immersion liquid cooling, can quickly and efficiently cool down heat pipe
Condensation end improves the radiating efficiency of entire server, guarantees that server is efficiently and stably run for a long time.
Detailed description of the invention:
Fig. 1 is the overall structure diagram of cabinet；
Fig. 2 is interior of equipment cabinet structure chart；
Fig. 3 is interior of equipment cabinet structure top view；
Fig. 4 is interior of equipment cabinet structural side view；
Structural schematic diagram when Fig. 5 is server and liquid separation branch pipe fork row；
Top view when Fig. 6 is server and liquid separation branch pipe fork row；
Fig. 7 is liquid distributing device structural schematic diagram；
Fig. 8 is liquid collector structural schematic diagram；
Fig. 9 is jet pipe schematic diagram；
Figure 10 is jet pipe jet hole spray angle schematic diagram；
Figure 11 is " quadrangle tangential circle " flow schematic diagram in horizontal direction；
Figure 12 is the flow schematic diagram of insulating and cooling liquid on vertical direction
Figure 13 is the structural schematic diagram that server package is arranged；
Figure 14 is the structural schematic diagram of Figure 13 server package A section.
In figure:
The support of 1 server, 2 cabinet, 201 cabinet sidewalls, 202 cabinet upper cover plate, 203 cabinet lower plate, 204 observation window, 205 pneumatic spring
206 coolant liquid inlet of bar, 207 coolant liquid liquid outlet
3 liquid distributing device, 301 304 tap hole of liquid separation main pipe inlet 302 liquid separation main pipe, 303 liquid separation branch pipe, 305 jet pipe inlet
4 " quadrangle tangential circles " are covered from 401 jet pipe of disturbing flow device, 402 jet hole, 403 jet pipe inlet 404
5 liquid collector, 501 collecting pipe 502 confluence 503 collecting pipe liquid outlet of hole
6, package；7, condensation end；8, evaporation ends；9, phase-change material, 10, heat pipe.
Specific embodiment
Fig. 1-4 illustrates immersion of the invention " quadrangle tangential circle " from flow-disturbing cooling system.As shown in Figs 1-4, the system
System includes server 1(or server package 6), cabinet 2, liquid distributing device 3, " quadrangle tangential circle " from disturbing flow device 4 and liquid collecting
Device 5.The cabinet 2 is equipped with coolant liquid inlet 206 and coolant liquid liquid outlet 207, and the coolant liquid inlet 206 is located at machine
201 lower part of cabinet side wall, the coolant liquid inlet 206 are connected with liquid distributing device 3, the liquid distributing device 3 and " quadrangle tangential circle "
Disturbing flow device 4 is connected, and the liquid collector 5 is located at below insulating and cooling liquid liquid level, and the liquid collector 5 and coolant liquid go out liquid
Mouth 207 is connected.The insulating and cooling liquid passes sequentially through liquid distributing device 3 and " quadrangle tangential circle " after passing through coolant liquid inlet 206
Disturbing flow device 4 enters in cabinet 2, server 1(or server package 6) it is immersed in the insulating and cooling liquid in cabinet 2,
Insulating and cooling liquid takeaway service device 1(or server package 6) after the heat that generates by the liquid collecting on 201 top of cabinet sidewalls
Device 5 is flowed out from coolant liquid liquid outlet 207.
The liquid distributing device 3 includes liquid separation main pipe 302, and the liquid separation main pipe 302 is connected with coolant liquid inlet 206；
Described from disturbing flow device is that " quadrangle tangential circle " from disturbing flow device, including four jet pipes 401 is placed on 2 four angles of cabinet
Vertical direction on, 401 lower ending opening of jet pipe is connected with liquid separation main pipe 302, upper port sealing；
A discharge discharge orifice 402 is provided on the jet pipe 401 on vertical direction, 402 opening direction of jet hole is successively along clothes
It is engaged in the tangential direction of inscribed circle where device (or server package 6), the jet hole on two jet pipes in diagonal angle
402 direction is parallel two-by-two.
Preferably, coolant liquid spray angle determines in the following manner:
As shown in Figure 10, as viewed from top view, cabinet a length of L, width W, a length of M of server group, width N, jet stream pipe diameter
For d, then two of them injection pipe coolant liquid injection direction and cabinet length direction angulation are as follows:
Other two injection pipe injection direction and cabinet length direction angulation are as follows:
Wherein, X=(L-d)/2, Y=(W-d)/2, a=M/2, b=N/2.
Present invention utilizes " quadrangle tangential circle " principles, are arranged on four angle vertical directions of cabinet from disturbing flow device, jet stream
The insulating and cooling liquid that hole is ejected surrounds server (or server package 6) in the horizontal direction and forms annularly flow,
Jet orifice obliquity is especially adjusted, makes its 402 opening direction of jet hole successively where server (or server package 6)
The coolant liquid that the tangential direction of inscribed circle, the annular disturbance more fully formed and slave bottom of cabinet portion uniformly rise mixes,
Make coolant liquid around server (or server package 6) spiral escalation, enhances the disturbance in coolant liquid flow field in cabinet
Intensity.To a certain extent, by way of quadrangle tangential circle, so that disturbance is stronger, heat exchange property is better, and heat exchange efficiency is higher.
Preferably, server (or server package 6) is square structure.Further preferably, the server is set
It sets in package 6, as shown in figure 13.The server in Fig. 1-12 can be arranged in package 6 at this time, carry out to package cold
But.
Server 1(or server package 6) it is vertically placed on the intracorporal fixed bracket of cabinet, 1 lower part of server is outstanding
Sky and liquid distributing device keep certain distance.Guarantee that 1 lower part of server is also submerged in coolant liquid, guarantees comprehensive heat dissipation.
As shown in figure 5, the liquid distributing device 3 include liquid separation main pipe 302 and liquid separation branch pipe 303, liquid separation branch pipe 303 be arranged to
On tap hole.Liquid separation arms parallel arrangement, tube bank both ends open are connected with 302 side wall of liquid separation main pipe, form " H " shape cloth
It sets.Coolant liquid is evenly spread in liquid separation branch pipe 303 in liquid separation main pipe 302.Liquid separation main pipe 302 and liquid separation branch pipe 303 are water
It is flat to be arranged in cabinet bottom.It is sprayed upwards by liquid separation branch pipe 303,6 lower part of server or server package can be made
It is cooled down, increases heat exchange area.
Preferably, liquid separation branch pipe is positioned only at 6 lower part of server or server package, other positions are not provided with.
By the way that the upward injection of liquid separation branch pipe 303 is arranged, so that server or server package 6 are effectively cooled down.
The liquid separation main pipe inlet 301 is connected with the coolant liquid inlet 206 on cabinet 2, liquid separation main pipe inlet
There are two 301, it is located at 3 diagonal angle of liquid distributing device, liquid separation main pipe has jet pipe inlet 305 above 302 4 right angles.Insulating cold
But liquid is entered in liquid separation main pipe 302 by coolant liquid inlet 206, then enters 303 He of liquid separation branch pipe by liquid separation main pipe 302
Jet pipe 401.
303 upper wall surface of liquid separation branch pipe offers the tap hole 304 that a row is equal in magnitude, is evenly distributed.Tap hole 304
Shape is not construed as limiting, and can be set to according to specific needs such as square hole, circular hole, regular polygon hole.
It is improved as one, 304 size of tap hole that 303 upper wall surface of liquid separation branch pipe offers is not identical, and distribution is also uneven
It is even.It is specific as follows:
Center from server or server package 6 (is then two cornerwise friendships of rectangle if it is rectangle
Point) start the position of surrounding to server or server package 6, the distribution density of tap hole 304 gradually becomes smaller.
Above-mentioned non-uniform setting, further can targetedly improve heat exchange efficiency.Because general server
Most in central hot quantity set, the concentration of heat will gradually decline since center is around, can by being arranged such
Further according to heat distribution come so that the amount of injection of coolant liquid changes, so that middle part coolant distribution is most, heat radiation energy
Power is most strong, so that whole improve heat-sinking capability.
Further preferably, the gradually smaller amplitude of the distribution density of tap hole 304 gradually increases.This rule is by big
The rule that the server heat that the numerical simulation of amount and experiment obtain is concentrated, thus regular setting distribution density.
Center from server or server package 6 (is then that two of rectangle are cornerwise if it is rectangle
Intersection point) start the position of surrounding to server or server package 6, the area of tap hole 304 (is straight if round
Diameter) it gradually becomes smaller.Further preferably, area (being diameter if round) gradually smaller density of tap hole 304 gradually increases.
Specific reason referring to shunt hole density variation analysis.
Preferably, cabinet sidewalls 201 are the double-deck wall structures, inner and outer wall is set, internal and outer wall space holds
Receive coolant liquid.The inlet 206 is connected to outer wall, and the liquid separation main pipe inlet 301 is connected to inner wall, thus by cold
But liquid is introduced into side wall from inlet 206, then enters liquid separation main pipe 302 by side wall.
By the way that the cabinet sidewalls 201 of double-walled construction are arranged, can to cool down after being filled with a small amount of coolant liquid
Liquid liquid level has certain height in side wall 201, to increase the coolant liquid pressure in bottom liquid separation main pipe, to improve cold
But the jet power of liquid.Furthermore it is also possible that the coolant liquid of side wall also assists in internal heat exchange, exchange capability of heat is improved.
Preferably, insulating layer is arranged in the external of the outer wall.
Preferably, the liquid outlet 207 of the coolant liquid is connected to outer wall, the collecting pipe liquid outlet 503 with it is interior
Wall connection, so that coolant liquid is discharged from the top of cabinet sidewalls.
As shown in Figure 2, Figure 3 and Figure 4, as a kind of feasible embodiment, liquid separation branch pipe 303 and server 1(or clothes
Business device package 6) forward arrange.The 304 two neighboring service of lucky face of tap hole on liquid separation branch pipe 303 and liquid separation branch pipe 303
Device 1(perhaps server package 6) between gap coolant liquid by flowing into server 1(or server after tap hole 304
Package 6) between gap in, cooling effect is not only greatly improved, also reduces flow resistance.
As shown in Figure 5 and Figure 6, alternatively feasible embodiment, liquid separation branch pipe 303 and server 1(or clothes
Business device package 6) it pitches to arrangement.Server 1(or server package 6) it is placed in two neighboring tap hole on liquid separation branch pipe
Between 304, the tap hole 304 that different liquid separation branch pipes correspond to same row on liquid separation branch pipe be right against adjacent two server 1(or
Person's server package 6) between gap, insulating and cooling liquid flows gap between straight access server 1 after passing through tap hole 304
It is interior, cooling effect is not only greatly improved, also reduces flow resistance.
As shown in Fig. 2, Fig. 9 and Figure 11, " quadrangle tangential circle " disturbing flow device 4 includes that four jet pipes 401 are fixed on machine vertically
On the vertical direction at four angles of cabinet 2,401 lower ending opening of jet pipe is connected with liquid separation main pipe 302.It is cold in liquid separation main pipe 302
But liquid not only flows to liquid separation branch pipe, enters in four jet pipes 401 also by jet pipe inlet 403.End seal on jet pipe 401
Mouthful, a certain number of jet holes 402 are equably provided on jet pipe 401.402 upper opening direction of jet hole along server 1(or
Person's server package 6) inscribed circle tangential direction.The coolant liquid projected by jet hole 402 on four jet pipes 401, one
Aspect is directly penetrated in server 1(or server package 6) on, heat exchange cooling effect is enhanced, on the other hand to from bottom
The coolant liquid come in uniform flow produces an annular disturbance in the horizontal direction, has horizontally rotated coolant liquid in cabinet
Come, to strengthen disturbance, enhances the cooling effect of heat exchange.
The jet pipe 401 can rotate, in 2 server 1(of cabinet or server package 6) quantity change when,
Change the direction of jet hole 402 by rotation jet pipe 401.
As shown in figure 8, the liquid collector 5 is made of collecting pipe 501, it is hollow pipe, head and the tail inside the collecting pipe 501
It is connected and surrounds square frame-shaped, cabinet inner wall is close on the outside of 501 box of square frame-shaped collecting pipe, a Thursday face is provided on the inside of box
The confluence hole 502 of even distribution.Collecting pipe 501 is immersed in cooling-liquid level hereinafter, equally distributed confluence hole 502 guarantees server
1(or server package 6) coolant liquid inside placed cavity uniformly across confluence hole 502 flows into collecting pipe 501 and through converging
Flow tube liquid outlet 503 flows out, and reduces the appearance of flow dead zone.Collecting pipe liquid outlet 503 also there are two, diagonal distribution is presented,
Guarantee that coolant liquid more uniformly flows out.
In this example, filter device respectively can be set on confluence hole 502.
In this example, the cover board is equipped with the observation window for observing cooling liquid level.
In this example, the coolant liquid uses dielectric refrigerant, and such as insulate nonconducting mineral oil, silicone oil and electronics fluorination
Liquid etc..
Describe coolant flow flowing through channel in conjunction with Figure 11 and Figure 12: the stable coolant liquid that insulate is cold by cooling heat exchanger
But cabinet 2 is entered by coolant liquid inlet 206 under the pressure of circulating pump after reaching predetermined temperature, subsequently enters liquid separation main pipe
In 302, the horizontal liquid separation branch pipe 303 and jet pipe being connected with liquid separation main pipe 302 are uniformly then flowed by liquid separation main pipe 302
In 401.Coolant liquid is flowed out in the tap hole 304 by 303 upper wall of liquid separation branch pipe and is sprung up upwards in liquid separation branch pipe 303, is entered
Cooling server 1 is removed in the gap of 1 array of server；At the same time, it enters coolant liquid in jet pipe 401 and passes through jet hole 402
Spouting, the coolant liquid that four jet pipes 401 eject is formd in a manner of " quadrangle tangential circle " around the rotation of server 1
Circulation.Flowing for coming on vertical direction from bottom mixes superposition with the circulation of horizontal direction, makes the flow field of coolant liquid in cabinet
Changed, to make the coolant liquid spiral escalation around server 1.Coolant liquid is reached apart from subsurface collecting pipe
The horizontal plane of 501 beams, because confluence hole 502 is evenly distributed on the surrounding for being close to cabinet body, the confluence hole of coolant liquid uniformly around
502 gush, and ensure that all coolant liquids both participate in cooling cycle process, avoid the generation of flow dead zone.Collecting pipe 501
Interior coolant liquid is discharged through collecting pipe liquid outlet 503 into coolant liquid liquid outlet 207, is sent to the external heat-exchanging that coolant liquid is cooling
System is again introduced into coolant liquid inlet 206, and then completes next circulation after insulating and cooling liquid is cooled.
Preferably, the jet pipe can rotate, adjusted the angle by the rotation of jet pipe, meets different sizes
Server (or server package 6).
Preferably, the distribution density of jet hole 402 is continuously increased along short transverse.It is above-mentioned the result is that by big
The conclusion that the numerical simulation of amount and experiment obtain.It enables to heat dissipation more evenly, extends server service life.Pass through theory point
Analysis, on the one hand, because package is immersed in cooling liquid, the cooling liquid in package is because convection current will lead to top
The temperature of liquid be higher than lower part and cause heat transfer effect to be significantly worse than down because the temperature difference of top and condensation end of heat pipe just becomes smaller
Portion, the distribution density by the way that jet hole 402 is arranged are continuously increased, and increase injection flow, thus increase the heat dissipation capacity on top, so that
Whole upper and lower heat dissipation capacity is uniform, avoids local temperature excessively high, causes local damage.On the other hand, because coolant liquid be from
Lower part enters, and for the original pressure in lower part with regard to big, the amount of injection is also big, therefore is greater than lower part by the distribution density on setting top, also can
It is further ensured that more coolant liquids enter top injection.The ever-increasing skill of distribution density of above-mentioned setting jet hole 402
It is that art is characterized in obtaining by many experiments and numerical simulation as a result, and the application an inventive point, be not this field
Common knowledge.
Further preferably, along short transverse, the ever-increasing amplitude of distribution density of jet hole 402 is set increasingly
Greatly.This technical characteristic is obtained by many experiments and numerical simulation as a result, meeting the distribution and coolant liquid of fluid temperature
One inventive point of Distribution dynamics and the application, is not the common knowledge of this field.
Preferably, the size of jet hole 402 is continuously increased along short transverse.It is above-mentioned the result is that by a large amount of
The conclusion that numerical simulation and experiment obtain.It enables to heat dissipation more evenly, extends server service life.By theory analysis,
On the one hand, because package is immersed in cooling liquid, the cooling liquid in package is because convection current will lead to top
The temperature of liquid is higher than lower part causes heat transfer effect to be significantly worse than lower part because the temperature difference of top and condensation end of heat pipe just becomes smaller,
Size by the way that jet hole 402 is arranged is continuously increased, and increases injection flow, to increase the heat dissipation capacity on top, so that on the whole
Subordinate portion heat dissipation capacity is uniform, avoids local temperature excessively high, causes local damage.On the other hand, because coolant liquid be from lower part into
Enter, for the original pressure in lower part with regard to big, the amount of injection is also big, therefore is greater than lower part by the distribution density on setting top, also can be further
Guarantee that more coolant liquids enter top injection.The ever-increasing technical characteristic of size of above-mentioned setting jet hole 402 is logical
Cross many experiments and numerical simulation obtains as a result, and the application an inventive point, be not the common knowledge of this field.
Further preferably, along short transverse, the ever-increasing amplitude of size that jet hole 402 is arranged is increasing.This
One technical characteristic is obtained by many experiments and numerical simulation as a result, meeting distribution and the coolant liquid distribution rule of fluid temperature
One inventive point of rule and the application, is not the common knowledge of this field.
Preferably, the liquid collector is made of collecting pipe, and it is hollow tubular inside the collecting pipe, external presentation side
Frame shape, the collecting pipe liquid outlet on the collecting pipe are connected with coolant liquid liquid outlet.
Preferably, the collecting pipe outside wall surface is close to cabinet inner wall, four inner walls of collecting pipe are provided with evenly distributed
Confluence hole.
As the case of special implementation, preferred size is as follows:
Server long 915mm, wide 445mm, high 75mm；
Cabinet long 1500mm, wide 500mm, high 1000mm；
Liquid separation main pipe diameter 32mm, long 1500mm, liquid separation branch pipe diameter 20mm, long 440mm,
Jet stream pipe diameter 20mm, high 900mm；
Liquid collecting pipe diameter 20mm, both sides pipe range are respectively 1500mm and 500mm.
This size is only the reference dimension in experiment simulation process, cannot function as limitation of the present invention, in difference
When the factors such as server size and heating power change, the size can be changed to provide more efficient good cooling effect.
Figure 13 illustrates a kind of server package, to replace the server of earlier drawings.It include clothes in the package 6
Business device 1 and phase-change material 9, the server 1 are enclosed in the inside of phase-change material 9, and the setting of evaporation ends 8 of the heat pipe 10 exists
In phase-change material 9, the condensation end 7 of heat pipe 10 extends the outside for being pierced by package 6.
The present invention is combined with immersion liquid cooling three by heat pipe, phase-change material to radiate to server, so that
The heat that server generates passes to phase-change material first, and phase-change material is undergone phase transition, and then heat is passed by heat pipe evaporation ends
Condensation end is passed, evaporation ends are transmitted by condensation end outward, then evaporation ends pass to cooling liquid, to realize that server is quick
Heat dissipation.
The present invention surrounds server by setting phase-change material and passes through latent heat of phase change by the phase-change heat-exchange of phase-change material
More heats are absorbed, guarantee that the temperature of heat-storing material is constant, thereby may be ensured that the temperature of server is constant.
The present invention can make the different location of the outside wall surface of server keep and the phase-change material temperature difference by phase-change material
It is essentially identical, guarantee that whole heat dissipation is uniform, avoid local temperature difference excessive too small, causes heat dissipation uneven, cause local damage.
One aspect of the present invention transports the heat of server generation using heat pipe, liquid phase-change heat transfer is utilized, compared to normal
The heat convection of rule has heat dissipation response speed faster, while also having higher radiating efficiency, can well solve high fever
The heat dissipation problem of the server of current density.
Server is packaged in the server package filled with phase-change material by the present invention, can solve each portion of server
The unequal problem of heat flow density that part generates makes whole system have good uniform temperature.
Of the invention has a wide range of application, and extremely cold extreme environment can be used.If the extreme environment of chilling is arranged in, because
It can play the role of accumulation of heat simultaneously for phase-change material, by stopping the circulation of cooling liquid, certain heat preservation effect can also be played
Fruit avoids server out of service in extreme circumstances.
Preferably, the outside wall surface of the package is heat carrier, pass through setting outside wall surface heat carrier and insulating cold
But liquid, cooling liquid directly can also directly be radiated by the outer wall face contact of package, and heat dissipation problem is preferably solved,
Improve heat dissipation effect.
Preferably, the package 6 is immersed in insulating and cooling liquid, and is dangled and fixed by bracket.Since server seals
Vanning 6 is immersed in insulating and cooling liquid, eliminates the influence to server such as dust, server running environment is by greatly excellent
Change, the calculated performance and service life of server can be improved.And dangled and fixed by bracket, guarantee under package
Portion is also submerged in coolant liquid, guarantees comprehensive heat dissipation.
Further, server, heat pipe, phase-change material etc. are included in the server package.In the server package
It is equally spaced several servers.Phase is filled between the gap and server and server encapsulation tank wall of adjacent two server
Become material, if dry heat pipe is inserted into these phase-change materials.Wherein the evaporation ends of the heat pipe are arranged in server package,
The condensation end of the heat pipe is arranged in outside server package, and heat pipe and server package contact position carry out at stringent sealing
Reason is isolated inside server package with external with realizing.The phase-change material arranged inside the server package is available
To make that there is good uniform temperature inside server package.
Further, the heat pipe includes evaporation ends, condensation end etc..Affiliated heat pipe uses high-quality Heat Conduction Material such as copper
It makes.In the phase-change material filled in the heat pipe evaporation ends insertion server package.The condensation end of the heat pipe is located at service
Outside device package.The heat pipe inner surface is designed to porous structure or opens several conduits in the heat pipe inner surface, with this
The power of evaporation ends is flowed back into provide heat-pipe working medium by condensation end.It can be cold further to strengthen the heat dissipation effect of condensation end
Implement other auxiliary heat dissipation measures such as in solidifying end outer surface: outer radiation fin.The heat pipe work working medium can choose liquefied ammonia,
Water, propane, organic refrigerant etc..
Further, the heat pipe can be using the arrangement modes such as in-line arrangement or fork row.
Further, external cooling system, such as air-conditioning, heat exchanger can be passed through after the insulating and cooling liquid outflow cabinet
It is cooled down, insulating and cooling liquid after cooling comes back to refrigerant source by kinetic pump driving.
Preferably, the condensation end of heat pipe is arranged perpendicular to the wall surface of package 6.
Preferably, condensation end of heat pipe is arranged in each wall surface of package.
Preferably, the server is arranged along height, the phase-change material is arranged also along short transverse.Heat pipe
It is arranged along short transverse multiple.
Preferably, the heat pipe is set as multiple along short transverse, along short transverse, the heat of package is stretched out
The length at pipework condensation end is continuously increased.It is above-mentioned the result is that the conclusion obtained by a large amount of numerical simulation and experiment.It can make
It must radiate more evenly, extend server service life.By theory analysis, because package is immersed in cooling liquid,
Cooling liquid in package is because the temperature that convection current will lead to the liquid on top is higher than lower part, because of top and condensation end of heat pipe
The temperature difference just become smaller, cause heat transfer effect to be significantly worse than lower part, by be arranged condensation end of heat pipe length be continuously increased so that whole
Body increases heat exchange area, to increase the heat dissipation capacity on top, so that whole upper and lower heat dissipation capacity is uniform, avoids local temperature mistake
Height causes local damage.The ever-increasing technical characteristic of the length of above-mentioned condensation end of heat pipe is by many experiments and numerical value
Simulate obtain as a result, and the application an inventive point, be not the common knowledge of this field.
Further preferably, along short transverse, the ever-increasing amplitude of the length of condensation end of heat pipe is increasing.This skill
It is that art is characterized in obtaining by many experiments and numerical simulation as a result, meet fluid temperature distribution and one of the application
Inventive point is not the common knowledge of this field.
Preferably, the height of package is H, along short transverse, the condensation end length of the heat pipe of package least significant end
It is L, then distance packaged case the lowest distance is that the condensation end length l rule of the heat pipe of the position h is as follows: l=L+b*L*(h/H)a,
Wherein a, b are coefficients, meet following require:
1.23<a<1.45,0.35<b <0.38。
Preferably, a, b are gradually increased as h/H increases.
Preferably, 1.30 < a < 1.38,0.36 <b < 0.37.
As preferably along short transverse, the heat pipe is set as multiple, along short transverse, stretches out the heat pipe of package
The distributed quantity of condensation end is continuously increased.It is above-mentioned the result is that the conclusion obtained by a large amount of numerical simulation and experiment.It can
So that heat dissipation is more evenly, extend server service life.By theory analysis, because package is immersed in cooling liquid, because
Cooling liquid in this package is because the temperature that convection current will lead to the liquid on top is higher than lower part, because top and heat pipe condense
The temperature difference at end just becomes smaller, and heat transfer effect is caused to be significantly worse than lower part, and the distribution density by the way that condensation end of heat pipe is arranged is continuously increased,
So that whole increase heat exchange area, to increase the heat dissipation capacity on top, so that whole upper and lower heat dissipation capacity is uniform, part is avoided
Temperature is excessively high, causes local damage.The ever-increasing technical characteristic of the length of above-mentioned condensation end of heat pipe is to pass through many experiments
With numerical simulation obtain as a result, and the application an inventive point, be not the common knowledge of this field.
Further preferably, along short transverse, the ever-increasing amplitude of the distribution density of condensation end of heat pipe is increasing.This
One technical characteristic is obtained by many experiments and numerical simulation as a result, meeting the distribution and the application of fluid temperature
One inventive point is not the common knowledge of this field.
Preferably, the height of package is H, along short transverse, the condensation end of the heat pipe of package least significant end is distributed
Density is D, then distance packaged case the lowest distance is that the condensation end distribution density point d rule of the heat pipe of the position h is as follows:
D=D+b*D*(h/H)a, wherein a, b are coefficients, meet following require:
1.3<a<1.5,0.34<b <0.37。
Preferably, a, b are gradually increased as h/H increases.
Preferably, 1.38 < a < 1.42,0.35 <b < 0.36.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being defined by the scope defined by the claims..
Claims (6)
1. a kind of heat pipe, including package, the package is interior to have heat source and phase-change material, and the heat source is enclosed in phase transformation material
The evaporation ends of the inside of material, the heat pipe are arranged in phase-change material, and the condensation end of heat pipe extends the outside for being pierced by package；
It is characterized in that, the heat pipe is set as multiple along short transverse, along short transverse, the heat pipe condensation of package is stretched out
The length at end is continuously increased.
2. heat pipe as described in claim 1, which is characterized in that along short transverse, the length of condensation end of heat pipe is continuously increased
Amplitude it is increasing.
3. heat pipe as claimed in claim 2, which is characterized in that the height of package is H, and along short transverse, package is most
The condensation end length of the heat pipe of low side is L, then distance packaged case the lowest distance is the condensation end length l rule of the heat pipe of the position h
It restrains as follows: l=L+b*L*(h/H)a, wherein a, b are coefficients, meet following require:
1.23<a<1.45,0.35<b <0.38。
4. a kind of immersion " quadrangle tangential circle " is from flow-disturbing cooling system, including heat pipe described in one of claim 1-3.
5. a kind of heat pipe, including package, the package is interior to have heat source and phase-change material, and the heat source is enclosed in phase transformation material
The evaporation ends of the inside of material, the heat pipe are arranged in phase-change material, and the condensation end of heat pipe extends the outside for being pierced by package.
6. a kind of hot-pipe system, including cabinet, liquid distributing device, from disturbing flow device and liquid collector, the cabinet is equipped with coolant liquid
Inlet and coolant liquid liquid outlet, the coolant liquid inlet are connected with liquid distributing device, the liquid distributing device and from flow-disturbing fill
It sets and is connected, include jet pipe lower ending opening and liquid separation main pipe on vertical direction that jet pipe is placed on cabinet from disturbing flow device
It is connected, upper port sealing is provided with a discharge discharge orifice on vertical direction on the jet pipe, along short transverse, jet hole
Distribution density is continuously increased.
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