CN114300429B - Nanoparticle resuspension liquid cooling device and cooling method - Google Patents
Nanoparticle resuspension liquid cooling device and cooling method Download PDFInfo
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- CN114300429B CN114300429B CN202111607126.1A CN202111607126A CN114300429B CN 114300429 B CN114300429 B CN 114300429B CN 202111607126 A CN202111607126 A CN 202111607126A CN 114300429 B CN114300429 B CN 114300429B
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Abstract
本发明公开了一种纳米颗粒再悬浮液体冷却装置及冷却方法，所述液体冷却装置包括散热壳体和贯穿设置在散热壳体内的电极，在所述散热壳体的内腔填充有纳米悬浮液，该纳米悬浮液在散热壳体的液面高度高于或低于电极的水平面高度。所述散热壳体的下表面获取热量后，使热量传导至散热壳体的内腔与纳米悬浮液进行热量交换，在散热壳体内存储的纳米悬浮液因受热汽化而逐渐上升；在电极上加载高电压，使电极分别与上冷却夹板和下冷却夹板之间形成电场，在电极与上冷却夹板和下冷却夹板之间产生电势差，促使纳米悬浮液中的纳米粒子在电场作用下再次加速悬浮上升，纳米悬浮液中的纳米粒子热量传导至上冷却夹板进行热量交换，从而达到散热冷却的目的。
The present invention discloses a nanoparticle resuspension liquid cooling device and a cooling method. The liquid cooling device comprises a heat dissipation shell and an electrode arranged in the heat dissipation shell. The inner cavity of the heat dissipation shell is filled with a nano suspension. The liquid level of the nano suspension in the heat dissipation shell is higher or lower than the horizontal plane height of the electrode. After the lower surface of the heat dissipation shell obtains heat, the heat is transferred to the inner cavity of the heat dissipation shell to exchange heat with the nano suspension. The nano suspension stored in the heat dissipation shell gradually rises due to heat vaporization; a high voltage is loaded on the electrode to form an electric field between the electrode and the upper cooling clamping plate and the lower cooling clamping plate respectively, and a potential difference is generated between the electrode and the upper cooling clamping plate and the lower cooling clamping plate, so that the nanoparticles in the nano suspension are accelerated to suspend and rise again under the action of the electric field, and the heat of the nanoparticles in the nano suspension is transferred to the upper cooling clamping plate for heat exchange, thereby achieving the purpose of heat dissipation and cooling.
Description
Technical Field
The invention belongs to the field of electronic component cooling, in particular to the technical field of heat pipe cooling, and particularly relates to a nanoparticle re-suspension liquid cooling device and a nanoparticle re-suspension liquid cooling method.
Background
In the age of information development, as the integration level of transistors is higher, the requirements on the power density and the calculation speed of a processor are higher, so that the power consumption of the processor is larger, and the required cooling requirement is higher. Aiming at the continuous rising of power density and the requirement of stable and reliable operation, many main stream server manufacturers start to push out plate-type liquid cooling products successively. However, the existing cold plate design is aimed at the layout of a specific processor, so that the existing cold plate design has limitations, and most of the cooling devices adopt an air cooling heat dissipation mode, so that the cooling effect is poor, and the liquid cooling effect is better than that of air cooling. The application of the liquid cooling technology is suitable for higher and stricter requirements of all IT equipment of a data center, and drives all parts to continuously innovate and optimally design, which is a continuous progress for the whole chain, the application history of the liquid cooling scheme in various fields such as military industry, high-speed rail, automobiles and the like is long, the application of the liquid cooling scheme in the automobiles is most common, the liquid cooling scheme effectively dissipates heat into the air to prevent the engine from overheating, as the automobile electric evaporation develops, the innovation of the application of battery thermal management causes the liquid cooling to draw great attention, the battery cooling is solved to improve the energy utilization efficiency effectively and accelerate the process of the automobile electric evaporation, meanwhile, the power batteries with the same size are doubled to output, the cost is greatly saved, the lower loss can be brought to the design of a given cooling device, the thermal stress on the devices can be reduced, the service life is prolonged, and under the driving of the 5G technology, all main stream processor manufacturers push out the high-power processor of the subsequent architecture, the main stream processor is replaced with a high-density processor gradually, and the heat dissipation design of the high-heat flow density processor is urgent and the heat dissipation design is very important. Therefore, the effective solution to solve the current heat dissipation problem of the electronic device is a heat pipe conduction heat dissipation element, which has the advantages of high heat conduction performance, reliable operation, simple structure, uniform temperature and the like, and is widely applied to the fields of industry, aviation, national defense, medical treatment and the like, however, a large amount of heat is easily accumulated in the heat pipe in the heat dissipation process of the heat pipe, so that the nano fluid working medium in the heat pipe is burnt or insufficient in supply, and the temperature is rapidly increased, thereby influencing the working performance of the electronic device.
Disclosure of Invention
The invention aims to provide a nanoparticle re-suspension liquid cooling device and a cooling method, which can promote nanoparticles in nanofluid in a cooling device to suspend in a base liquid well again by utilizing the action of an electric field, so that the nanofluid can keep good suspension property, the problem that a nanofluid working medium is burnt out or is insufficient in supply is well solved, the problem that the nanofluid working medium is easy to be deposited in a cooling cavity due to agglomeration after long-time working is avoided, and the cooling effect of the cooling device is improved. In order to achieve the above purpose, the present invention adopts the following technical effects:
According to one aspect of the invention, a nanoparticle re-suspension liquid cooling device is provided, which is characterized by comprising a heat dissipation shell and an electrode penetrating through the heat dissipation shell, wherein one end of the electrode is arranged in one end of the heat dissipation shell, the other end of the electrode horizontally extends outwards from the other end of the heat dissipation shell, a nano suspension is filled in an inner cavity of the heat dissipation shell, the liquid level of the nano suspension in the heat dissipation shell is higher than or lower than that of the electrode, annular openings are respectively formed in the upper surface and the lower surface of the heat dissipation shell, and sealing covers are arranged at the annular openings in the upper surface and the lower surface of the heat dissipation shell.
The heat dissipation shell is in a flat hollow tube shape, an upper cooling clamping plate is tightly attached to the sealing cover, a lower cooling clamping plate is arranged on the upper surface of the thermal cavity, and the electrode is parallel to the upper cooling clamping plate and penetrates through the heat dissipation shell.
The above scheme is further preferable that the upper surfaces at two ends of the upper cooling clamping plate are respectively provided with an output joint and an input joint which are communicated with the inner cavity of the heat dissipation shell, a liquid circulation unit is arranged outside the heat dissipation shell, the input end of the liquid circulation unit is communicated with the output joint through an output pipe, the output end of the liquid circulation unit is communicated with the input joint through an input pipe, electrodes penetrating and extending from two ends are arranged in the heat dissipation shell, and nano suspension is filled in the heat dissipation shell.
The above scheme is further preferable, the liquid circulation unit comprises a radiator, a hydraulic pump and a liquid storage tank, nano suspension is stored in the liquid storage tank, the input end of the radiator is communicated with the output joint through an output pipe, the output end of the radiator is communicated with the input end of the liquid storage tank through the hydraulic pump, and the output end of the liquid storage tank is communicated with the input joint through an input pipe.
In the above-described embodiment, it is further preferable that a hydraulic pressure regulating valve is provided in the output pipe 10 on the side close to the output joint.
The above solution is further preferred, the liquid cooling device further comprises a vacuum adjusting unit, the vacuum adjusting unit comprises a vacuum pump, one or more vacuum joints communicated with the inside of the heat dissipation shell are arranged on the surface of the upper cooling clamping plate between the output joint and the input joint, and the vacuum joints are communicated with the input end of the vacuum pump through a gas pipe.
In the above scheme, it is further preferable that a gas pipe between the vacuum connector and the input end of the vacuum pump is provided with a one-way control valve.
According to another aspect of the invention, the cooling method of the nanoparticle re-suspension liquid cooling device comprises the following steps that heat is obtained from the lower surface of a heat dissipation shell, the heat is conducted to the inner cavity of the heat dissipation shell to exchange heat with the nanoparticle suspension, the nanoparticle suspension stored in the heat dissipation shell is gradually raised due to vaporization caused by heating, a high voltage of 1kV-10kV is loaded on an electrode, an electric field is formed between the electrode and an upper cooling clamping plate and between the electrode and a lower cooling clamping plate, a potential difference is generated between the electrode and the upper cooling clamping plate and between the electrode and the lower cooling clamping plate, the nanoparticle in the nanoparticle suspension deposited in the heat dissipation shell is accelerated to rise again under the action of the electric field, and the nanoparticle in the nanoparticle suspension is conducted to the upper cooling clamping plate to exchange heat, so that the purpose of heat dissipation and cooling is achieved.
The cooling method further preferably comprises the steps of starting a liquid circulation unit arranged outside the heat dissipation shell when the nano suspension stored in the heat dissipation shell gradually rises due to heated vaporization, pressing the nano suspension stored in the liquid storage tank into the heat dissipation shell along the input pipe through the hydraulic pump, enabling hot liquid in the nano suspension to quickly mix into cold liquid to cool and dissipate heat, adjusting the flow of the nano suspension pressed into the heat dissipation shell through the hydraulic adjusting valve, and pumping the pressed nano suspension out along the output pipe after being heated in the heat dissipation shell, wherein the heated nano suspension is sent into the heat dissipation shell to be cooled and then flows back into the liquid storage tank to be sent into the heat dissipation shell again to be cooled in a next circulation mode.
The cooling method further comprises the following steps that after the pressed nano suspension is heated in the heat dissipation shell and then is extracted along the output pipe, the vacuum adjusting unit is started according to the surface temperature of the heat dissipation shell, and the vacuum state in the heat dissipation shell is adjusted by starting the vacuum pump of the vacuum adjusting unit to pump hot gas generated when the nano suspension is heated and gasified in the heat dissipation shell, so that the nano suspension in the heat dissipation shell is gasified in an accelerating way, and a large amount of heat in the heat dissipation shell is instantaneously taken away.
In summary, the invention adopts the technical scheme, and has the following technical effects:
The invention can effectively suspend the deposited nano particles in the base liquid again under the action of an external electric field to ensure that the nano fluid keeps better suspension property, and the nano fluid in the cooling device can perform natural convection to achieve the aim of heat exchange, and can discharge non-evaporable substances by starting a vacuum pump so as to ensure that the whole device is in a vacuum state, the boiling point of liquid is reduced, the nano fluid (cooling working medium) is converted into a gas-liquid two-phase state to quickly take away a large amount of heat, and the working temperature required by a heat source to be cooled is quickly reached
Drawings
FIG. 1 is a schematic diagram of a first embodiment of a nanoparticle re-suspension liquid cooling apparatus of the present invention;
FIG. 2 is a schematic cross-sectional view of a first embodiment of a nanoparticle re-suspension liquid cooling apparatus of the present invention;
FIG. 3 is a schematic diagram of a second embodiment of a nanoparticle re-suspension liquid cooling apparatus of the present invention;
FIG. 4 is a schematic diagram of an exploded construction of a second embodiment of a nanoparticle re-suspension liquid cooling apparatus of the present invention;
In the drawing, a heat dissipation shell 1, an upper cooling clamping plate 2, a lower cooling clamping plate 3, an electrode 4, an output connector 5, an input connector 6, a radiator 7, a hydraulic pump 8, a liquid storage tank 9, an output pipe 10, an input pipe 11, a hydraulic regulating valve 12, a vacuum pump 13, a vacuum connector 14, a gas transmission pipe 15, a one-way control valve 16, a bolt 20, a nano suspension 100, an annular opening 101 and a sealing cover 102.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
As shown in fig. 1 and 2, according to the present invention, a nanoparticle resuspension liquid cooling device comprises a heat dissipation case 1 and an electrode 4 penetrating through the heat dissipation case 1, wherein one end of the electrode 4 is disposed in one end of the heat dissipation case 1, the other end of the electrode 4 horizontally extends out from the other end of the heat dissipation case 1, a nanoparticle suspension 100 is filled in an inner cavity of the heat dissipation case 1, the nanoparticle suspension 100 is in insulating contact with the heat dissipation case 1 at a level higher or lower than that of the electrode 4, the heat dissipation case 1 is made of a high temperature-resistant material, an electric field is generated across the electrode 4 in a cavity of the heat dissipation case 1 by applying a high voltage to the outside of the electrode 4 and an inner wall of the heat dissipation case 1, the nanoparticles in the nanosuspension 100 are suspended in a liquid under the action of coulomb force under the electric field environment, so that heat exchange efficiency is increased, and simultaneously, the nanoparticle suspension 1 is more easily cooled by the action of the high temperature-resistant material in the heat dissipation case 1, and the sedimentation of the nanoparticle suspension is more easily carried out in a complex motion direction in the heat dissipation case, and the nanoparticle suspension is more easily cooled by the action of the heat dissipation case 1, and the complex motion is prevented, the nanoparticle suspension is cooled down in the direction is more stable, and the inner suspension is more stable due to the action of the heat dissipation effect is more stable in the inner field, and the inner suspension is more stable in the heat dissipation effect is more stable in the heat dissipation case, and the air, and the inner-stable is better in the air, and the air is better in the air under the action condition of the action condition is in the stress condition, the problems of dry burning or insufficient supply of the nano fluid working medium can be well solved, and the normal and efficient operation of the heat pipe is ensured. In the present invention, the nano suspension 100 is composed of a base liquid and nano powder, the particle size of the nano powder is 10nm-100nm, preferably 10nm-50nm, the base liquid includes but is not limited to refrigerant, transformer oil, liquid nitrogen, liquid carbon dioxide, etc., the nano powder is composed of nano particles such as nano metal powder, nano metal oxide powder, nano non-metal, etc., the nano metal oxide powder can be selected from nano aluminum powder, nano copper powder, etc., the nano metal oxide powder can be selected from nano particles such as nano aluminum oxide powder, nano magnesium oxide powder, nano ferroferric oxide powder, etc., the non-metal oxide powder can be selected from nano particles such as nano silicon dioxide powder, nano silicon carbide powder, etc. Due to the existence of the external electric field, the deposited nano particles can be effectively suspended in the base liquid again, and the good suspension property is maintained in the operation of the device.
In the invention, as shown in fig. 1 and 2, the heat dissipation shell 1 is in a flat hollow tube shape, annular openings 101 are respectively arranged on the upper surface and the lower surface of the heat dissipation shell 1, sealing covers 102 are arranged at the annular openings 101 on the upper surface and the lower surface of the heat dissipation shell 1, an upper cooling clamping plate 2 is closely arranged on the sealing covers 102, a lower cooling clamping plate 3 is arranged on the upper surface of the heat dissipation cavity 1, the electrode 4 is parallel to the upper cooling clamping plate 2 and the lower cooling clamping plate 3 and penetrates through the heat dissipation shell 1, the inner wall of the sealing covers 102 is in a grid shape, the contact area with nano suspension 100 is increased while internal sealing is ensured, the upper cooling clamping plate 2 and the lower cooling clamping plate 3 are conveniently installed, an output joint 5 and an input joint 6 which are respectively communicated with the inner cavity of the heat dissipation shell 1 are arranged on the upper surfaces of the two ends of the upper cooling clamping plate 2, a liquid circulation unit is arranged outside the heat dissipation shell 1, the input end of the liquid circulation unit is communicated with the output joint 5 through an output pipe 10, the output end of the liquid circulation unit is communicated with the input joint 11 and the input joint 6 through the input pipe 1, the electrode is arranged in the heat dissipation shell 1 through the sealing covers 1, the inner surface of the heat dissipation shell 1 is filled with the electrode 102, the heat dissipation shell is filled with the nano suspension 1 and the heat dissipation shell is filled with the nano suspension 1, and the heat dissipation shell is in the heat dissipation shell 1, the heat dissipation shell is sealed by the sealing covers, and the electrode 102 is filled in the heat dissipation shell is filled with the electrode 102, and the heat dissipation shell is filled with the nano suspension is in the heat dissipation shell, and is filled with the heat dissipation shell, and is in the heat dissipation shell is filled with the heat dissipation shell, and is filled with the heat dissipation shell and is filled with the heat and has a heat dissipation material is filled with the heat and has a heat insulation material is filled in the heat insulation material is, The needle electrode and other electrode forms can be used for improving the heat exchange efficiency of the device by loading different electrodes 4 to form uniform electric fields or non-uniform electric fields, the upper cooling clamping plate 2 and the lower cooling clamping plate 3 are respectively grounded, the upper cooling clamping plate 2 and the lower cooling clamping plate 3 are made of metal plates with good heat conduction performance, heat accumulation can be effectively reduced, the upper cooling clamping plate 2 and the lower cooling clamping plate 3 are fixed by bolts 20, the tightness of the whole device can be ensured, high voltage is applied to the electrodes 4, the upper cooling clamping plate and the lower cooling clamping plate are grounded, a high potential difference is formed between the wire electrode and the two cooling clamping plates, the potential difference acts on nano particles in the nano suspension 100, the nano particles deposited in the nano suspension are facilitated to be re-suspended, the re-use of nano fluid in the liquid is well ensured, the nano suspension 100 is used as cooling working medium in the heat dissipation shell 1, the cyclic utilization of the cooling working medium is increased, and the material loss is reduced. when the device to be cooled is cooled, the lower surface of the heat dissipation shell 1 is close to the Cooling surface of the cooled equipment, heat (Heating) generated by the operation of the cooled equipment is transferred to the Cooling surface (lower Cooling clamping plate 3), heat is taken away and rises to the upper Cooling clamping plate 2 to cool (Cooling) when the nano suspension 100 is heated, the nano suspension 100 Cooling working medium is contacted with a heat source to be cooled through a heat conducting medium (upper Cooling clamping plate 2), the thermal contact area between the surface of the upper Cooling clamping plate 2 and the heat source to be cooled can be increased, and the contact surface between the heat source to be cooled and the heat source to be cooled can be designed into different shapes or sizes to adapt to the heat sources to be cooled of different shapes or sizes, The voltage forms (including but not limited to square wave voltage, sine wave voltage, periodic alternating voltage) and the concentration of the nano suspension 100 (nano fluid) are used for improving the heat exchange efficiency of the device, the electrode 4 is used as a positive electrode, the upper cooling clamping plate 2 and the lower cooling clamping plate 3 are used as a negative electrode due to the difference between positive and negative voltages of an external electric field, and when the external voltage changes periodically, the periodically changing electric field is generated between the electrode 4 and the upper clamping plate and the lower clamping plate, the stress condition of the nano particles changes constantly, which is helpful for suspending the nano particles and increasing liquid disturbance, thereby enhancing heat exchange.
In the present invention, referring to fig. 1, 3 and 4, the liquid circulation unit includes a radiator 7, a hydraulic pump 8 and a liquid storage tank 9, in which nano suspension 100 is stored in the liquid storage tank 9, an input end of the radiator 7 is communicated with the output connector 5 through an output pipe 10, an output end of the radiator 7 is communicated with an input end of the liquid storage tank 9 through the hydraulic pump 8, an output end of the liquid storage tank 9 is communicated with the input connector 6 through an input pipe 11, and a hydraulic pressure regulating valve 12 is arranged on the output pipe 10 near one side of the output connector 5, in the present invention, the hydraulic pump 8 does not operate when power is off, and the electrode 4 does not load high voltage electricity; before starting the liquid circulation unit, firstly filling the nano suspension 100 into the device, when the device operates, opening the hydraulic pump 8 to enable the nano fluid (nano suspension 100) to fill the whole device pipeline, applying high voltage to the linear electrode 4, grounding the upper cooling clamping plate and the lower cooling clamping plate, when the heat dissipation shell 1 absorbs the heat of the cooled equipment, raising part of the heat of the nano suspension 100 in the heat dissipation shell 1 to be heated and vaporized to the upper cooling clamping plate 2 for cooling, and enabling part of the heat of the nano fluid (nano suspension 100) to flow into the radiator 7 along with the output pipe 10 for cooling, wherein the radiator 7 is of a coil structure, the radiator can perform heat dissipation through a constant-temperature water bath, natural air cooling or an air cooler, and the nano fluid (nano suspension 100) cooled in the radiator 7 flows back into the liquid storage tank 9 again and then enters the next heat dissipation cooling cycle, so that the cooled device works in a proper temperature range.
In the invention, referring to fig. 1 and 3, the liquid cooling device further comprises a vacuum adjusting unit, the vacuum adjusting unit comprises a vacuum pump 13, the radiator 7 and the hydraulic pump 8 are all mute devices, one or more vacuum joints 14 communicated with the inside of the heat dissipation shell 1 are arranged on the surface of the upper cooling clamping plate 2 between the output joint 5 and the input joint 6 to avoid noise as much as possible, the vacuum joint 13 is communicated with the input end of the vacuum pump 13 through an air pipe 15, the air pipe 15 between the vacuum joint 13 and the input end of the vacuum pump 13 is provided with a one-way control valve 16, in the invention, in the case of quick cooling is needed, the vacuum pump 13 can be started, so that the inside of the heat dissipation shell 1 and the pipeline are in a vacuum state, the one-way control valve 16 can effectively prevent liquid in the device from flowing back into the vacuum pump 13, and the use of the vacuum pump 13 has certain requirements on pressure resistance of the pipeline and the heat dissipation shell 1. When the vacuum pump 13 operates to maintain the vacuum state in the heat dissipation shell 1, the hydraulic pump 8 is opened to circulate the liquid, the boiling point of the liquid in the vacuum state is reduced, the liquid is easier to boil, the liquid evaporates to take away a large amount of heat, the temperature of a cooling surface is reduced rapidly, and the generated gas and liquid flow back to the liquid storage tank 9 through the cooling of the radiator 7 to be a heat dissipation cycle. For some cases with lower requirements for heat dissipation, the hydraulic pump 8 can be turned off for circulation, so that the device can perform natural convection heat exchange under the condition of turning off the hydraulic pump 8, and energy loss is reduced.
According to another aspect of the invention, referring to fig. 1,3 and 4, the cooling method of the nanoparticle re-suspension liquid cooling device according to the invention comprises the steps of obtaining heat from the lower surface of the heat dissipation shell 1, conducting the heat to the inner cavity of the heat dissipation shell 1 to exchange heat with the nanoparticle suspension 100, gradually rising the nanoparticle suspension 100 stored in the heat dissipation shell 1 due to thermal vaporization, loading a high voltage of 1kV-10kV on the electrode 4, forming an electric field between the electrode 4 and the upper cooling splint 2 and the lower cooling splint 3 respectively, generating a potential difference between the electrode 4 and the upper cooling splint 2 and the lower cooling splint 3, promoting the nanoparticle in the nanoparticle suspension 100 deposited in the heat dissipation shell 1 to rise again under the action of the electric field, and conducting the nanoparticle heat in the nanoparticle suspension 100 to the upper cooling splint 2 to exchange heat, thereby achieving the purpose of heat dissipation and cooling. Due to the existence of the external electric field, the deposited nano particles can be effectively suspended in the base liquid again, and the good suspension property is maintained in the operation of the device. The problem that the nano fluid working medium is burnt out or insufficient in supply can be well solved, and the normal and efficient operation of the heat pipe is ensured.
In the present invention, referring to fig. 1,3 and 4, the cooling method further comprises the steps of starting a liquid circulation unit disposed outside the heat dissipation housing 1 when the nano-suspension 100 stored in the heat dissipation housing 1 gradually rises due to vaporization by heating, pressing the nano-suspension 100 stored in the liquid storage tank 9 into the heat dissipation housing 1 along the input pipe 11 by the hydraulic pump 8, so that hot liquid in the nano-suspension 100 is quickly mixed into cold liquid to cool and dissipate heat, adjusting the flow of the nano-suspension 100 pressed into the heat dissipation housing 1 by the hydraulic adjusting valve 12, and then extracting the pressed nano-suspension 100 along the output pipe 10 after heating in the heat dissipation housing 1, and then sending the heated nano-suspension 100 into the heat sink 7 to cool and cool, and then returning to the liquid storage tank 9 to send into the heat dissipation housing 1 again to perform the next circulation cooling. Before starting the liquid circulation unit, firstly injecting nano suspension 100 into the heat dissipation shell 1, when a cooling device is required to operate, opening a hydraulic pump 8 to enable nano fluid (nano suspension 100) to fill a pipeline of the whole liquid circulation unit, sending the nano suspension 100 in a low-temperature state after being condensed in a liquid storage tank 9 into the heat dissipation shell 1 by the hydraulic pump 8, mixing the nano suspension 100 with the nano fluid in a high-temperature state in the heat dissipation shell 1, reducing the temperature of the nano suspension 100 in the heat dissipation shell 1, cooling and radiating the heat dissipation shell 1, after the heat dissipation shell 1 absorbs the heat of a cooled device, enabling the nano suspension 100 in the heat dissipation shell 1 to be heated along with the heat absorption of the nano suspension 100 in the heat dissipation shell 1 and the part of the heat evaporated by the heat of the nano suspension 100 in the hydraulic pump 8 to be heated to be cooled by an upper cooling splint 2, at the moment, transferring the carried heat of the nano suspension 100 (nano suspension) into a cold area in the heat dissipation shell along with an output pipe 10, and then enabling the cooled nano suspension 100 to flow back into the liquid storage tank 9 again, and then entering the lower cooling shell to be circulated in the heat dissipation shell 1, so that the heat dissipation performance of the electronic device is further enhanced, and the heat dissipation performance of the electronic device is cooled in a circulation scope.
In the present invention, the cooling method further comprises the following steps, in combination with fig. 1, 3 and 4, after the pressed nano-suspension 100 is heated in the heat dissipation shell 1 and then is extracted along the output pipe 10, starting the vacuum adjusting unit according to the temperature of the surface of the heat dissipation shell 1, pumping the hot gas generated when the nano-suspension 100 in the heat dissipation shell 1 is heated and vaporized by starting the vacuum pump 13 of the vacuum adjusting unit, adjusting the vacuum state in the heat dissipation shell 1, so that the nano-suspension 100 in the heat dissipation shell 1 is vaporized rapidly, thereby instantaneously taking away a large amount of heat in the heat dissipation shell 1, and discharging the non-vaporizable material in a vacuum state by means of external vacuumizing, so that the whole device is in a vacuum state, the boiling point of the liquid is reduced, the internal nano-suspension 100 (cooling working medium) is vaporized, the cooling working medium is converted into a gas-liquid two-phase state, instantaneously taking away a large amount of heat, the required working temperature is rapidly reached to a required by a heat source to be cooled, a better cooling effect is achieved, and the nano-suspension 100 (cooling working medium) between the upper clamping plate and lower clamping plates can effectively reduce the accumulation of heat.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The nano particle re-suspension liquid cooling device is characterized by comprising a heat dissipation shell and an electrode penetrating through the heat dissipation shell, wherein one end of the electrode is arranged in one end of the heat dissipation shell, the other end of the electrode horizontally extends outwards from the other end of the heat dissipation shell, a nano suspension is filled in an inner cavity of the heat dissipation shell, the liquid level of the nano suspension in the heat dissipation shell is higher than or lower than the horizontal level of the electrode, annular openings are respectively formed in the upper surface and the lower surface of the heat dissipation shell, and sealing covers are arranged at the annular openings in the upper surface and the lower surface of the heat dissipation shell;
The heat dissipation shell is in a flat hollow tube shape, an upper cooling clamping plate is tightly attached to the sealing cover, a lower cooling clamping plate is arranged on the upper surface of the heat cavity, the electrodes penetrate through the heat dissipation shell in parallel to the upper cooling clamping plate and the lower cooling clamping plate, an output connector and an input connector which are respectively communicated with the inner cavity of the heat dissipation shell are arranged on the upper surfaces of the two ends of the upper cooling clamping plate, a liquid circulation unit is arranged outside the heat dissipation shell, the input end of the liquid circulation unit is communicated with the output connector through an output pipe, the output end of the liquid circulation unit is communicated with the input connector through an input pipe, the electrodes penetrating and extending from the two ends are arranged in the heat dissipation shell, and nanometer suspension is filled in the heat dissipation shell.
2. A nanoparticle resuspension liquid cooling device according to claim 1 wherein the liquid circulation unit comprises a radiator, a hydraulic pump and a liquid storage tank, wherein the nano suspension is stored in the liquid storage tank, the input end of the radiator is communicated with the output joint through an output pipe, the output end of the radiator is communicated with the input end of the liquid storage tank through the hydraulic pump, and the output end of the liquid storage tank is communicated with the input joint through an input pipe.
3. A nanoparticle resuspension liquid cooling device according to claim 2 wherein a hydraulic control valve is provided on the output tube on the side near the output connector.
4. A nanoparticle resuspension liquid cooling device according to claim 1 to 3 further comprising a vacuum conditioning unit comprising a vacuum pump with one or more vacuum connectors on the upper cooling splint surface between the output connector and the input connector in communication with the interior of the heat dissipating housing, the vacuum connectors in communication with the input of the vacuum pump via gas lines.
5. A nanoparticle resuspension liquid cooling device according to claim 4 wherein a gas line between the vacuum connector and the input of the vacuum pump is provided with a one-way control valve.
6. A cooling method of a nano particle resuspension liquid cooling device according to any one of claims 1 to 5 is characterized by comprising the following steps of obtaining heat from the lower surface of a heat dissipation shell, conducting the heat to an inner cavity of the heat dissipation shell to exchange heat with nano suspension, gradually rising the nano suspension stored in the heat dissipation shell due to thermal vaporization, loading a high voltage of 1kV-10kV on an electrode, enabling the electrode to form an electric field between the electrode and an upper cooling clamping plate and a lower cooling clamping plate respectively, generating a potential difference between the electrode and the upper cooling clamping plate and between the electrode and the lower cooling clamping plate, promoting nano particles in the nano suspension deposited in the heat dissipation shell to rise in a suspending mode again under the action of the electric field, and conducting heat of the nano particles in the nano suspension to the upper cooling clamping plate to exchange heat, so that the purpose of heat dissipation and cooling is achieved.
7. The cooling method of the nano-particle resuspension liquid cooling device is characterized by further comprising the steps of starting a liquid circulation unit arranged outside the heat dissipation shell when nano-suspension stored in the heat dissipation shell gradually rises due to heated vaporization, pressing the nano-suspension stored in the liquid storage tank into the heat dissipation shell along the input pipe through the hydraulic pump, enabling hot liquid in the nano-suspension to quickly mix with cold liquid for cooling and heat dissipation, adjusting the flow of the nano-suspension pressed into the heat dissipation shell through the hydraulic adjusting valve, extracting the pressed nano-suspension along the output pipe after being heated in the heat dissipation shell, cooling and cooling the heated nano-suspension, then returning the nano-suspension into the liquid storage tank, and sending the nano-suspension into the heat dissipation shell again for next circulation cooling.
8. The cooling method of the nanoparticle re-suspension liquid cooling device of claim 7, further comprising the step of starting the vacuum adjusting unit according to the temperature of the surface of the heat dissipation shell after the pressed-in nanosuspension is heated in the heat dissipation shell and is extracted along the output pipe, and adjusting the vacuum state in the heat dissipation shell by starting the vacuum pump of the vacuum adjusting unit to pump hot gas generated when the nanosuspension is heated and gasified, so that the nanosuspension in the heat dissipation shell is gasified with acceleration, and a large amount of heat in the heat dissipation shell is instantaneously taken away.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111607126.1A CN114300429B (en) | 2021-12-24 | 2021-12-24 | Nanoparticle resuspension liquid cooling device and cooling method |
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| CN101315257A (en) * | 2008-07-03 | 2008-12-03 | 上海交通大学 | Small capillary pump loop flat heat pipe using alcohol-based nanofluid as working fluid |
| CN108133918A (en) * | 2018-02-11 | 2018-06-08 | 中国科学院工程热物理研究所 | Micro capillary groove evaporator |
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| KR100655257B1 (en) * | 2004-10-14 | 2006-12-11 | 부산대학교 산학협력단 | Cooling System of Computer Central Processing Unit Using Nanofluid Coolant |
| US7511372B2 (en) * | 2005-06-28 | 2009-03-31 | Intel Corporation | Microelectronic die cooling device including bonding posts and method of forming same |
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| CN108133918A (en) * | 2018-02-11 | 2018-06-08 | 中国科学院工程热物理研究所 | Micro capillary groove evaporator |
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