CN112604833B - Electric spray liquid drop radiation heat dissipation device driven by conductive pump - Google Patents
Electric spray liquid drop radiation heat dissipation device driven by conductive pump Download PDFInfo
- Publication number
- CN112604833B CN112604833B CN202011465567.8A CN202011465567A CN112604833B CN 112604833 B CN112604833 B CN 112604833B CN 202011465567 A CN202011465567 A CN 202011465567A CN 112604833 B CN112604833 B CN 112604833B
- Authority
- CN
- China
- Prior art keywords
- liquid drop
- liquid
- pump
- droplet
- transparent cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/001—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means incorporating means for heating or cooling, e.g. the material to be sprayed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/082—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to a condition of the discharged jet or spray, e.g. to jet shape, spray pattern or droplet size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/005—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means the high voltage supplied to an electrostatic spraying apparatus being adjustable during spraying operation, e.g. for modifying spray width, droplet size
- B05B5/006—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means the high voltage supplied to an electrostatic spraying apparatus being adjustable during spraying operation, e.g. for modifying spray width, droplet size the adjustement of high voltage is responsive to a condition, e.g. a condition of material discharged, of ambient medium or of target
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
- B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
An electric spray liquid drop radiation heat dissipation device driven by a conductive pump belongs to the technical field of electrohydrodynamics and heat transfer correlation. The invention solves the problems of large volume, high energy consumption and nonadjustable liquid drop diameter of a mechanical pump adopted by the existing spatial radiation heat dissipation device. The high-temperature liquid after heat exchange by the heat exchanger is conveyed into the liquid drop generator, the liquid is charged by injecting charges into the liquid drop generator, liquid drops generated by the liquid drop generator are sprayed out by the nozzle and move to the liquid drop collector through the transparent cavity under the action of a space electric field formed in the transparent cavity, and the liquid drops collected by the liquid drop collector are pumped back to the liquid drop generator through the electric conduction pump; the liquid storage device is communicated with the inlet end of the conductivity pump through a pipeline, and a control valve is arranged on a connecting pipeline between the liquid storage device and the inlet end of the conductivity pump. The liquid drop atomization and the electric field regulation and control of the space flight track of the liquid drops are realized through the electrospray, and the control of the particle size of the liquid drops and the regulation of the running track are realized.
Description
Technical Field
The invention relates to an electronic injection liquid drop radiation heat dissipation device driven by a conductive pump, and belongs to the technical field of electrohydrodynamics and heat transfer correlation.
Background
As one of the three basic energy transfer modes, radiant heat exchange has been widely used in many fields, and is one of the core heat transfer modes in a high-temperature or vacuum environment. In particular, on spacecraft and space stations, the waste heat generated by the power plant can only be dissipated to space by thermal radiation. The development process of the related art mainly comprises the following steps: first, the conventional radiation heat dissipation device for the space station mainly passes through a heat pipe system and a pump circulation system, but has the disadvantages of large mass and size of the heat dissipation system, large radiation heat dissipation area, and the like. Then, a space radiation heat dissipation device based on a liquid droplet system has been developed, and the system has the advantages of large heat dissipation specific surface area, small mass of the heat dissipation system and the like, but liquid droplets are easy to evaporate and lose. From the aspect of driving force, the existing liquid drop radiation circulating system mainly adopts a traditional mechanical pump and has the defects of large volume and high energy consumption. In addition, the conventional mechanical atomizing nozzle controls the diameter of the liquid drop by designing the diameter of the nozzle, and once the mechanical atomizing nozzle is assembled, the diameter and the flow rate of the liquid drop are fixed and cannot be adjusted.
Disclosure of Invention
The invention aims to solve the problems of large volume, high energy consumption and nonadjustable droplet diameter of a mechanical pump adopted by the conventional spatial radiation heat dissipation device, and further provides an electronic injection droplet radiation heat dissipation device driven by a conductive pump.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an electric spray liquid drop radiation heat radiator driven by a conductive pump comprises a conductive pump, a heat exchanger, a liquid drop generator, a liquid drop collector, a liquid storage device and an adjustable direct current power supply, wherein the liquid drop collector, the conductive pump, the heat exchanger and the liquid drop generator are sequentially communicated through a pipeline, the liquid drop generator is connected with the liquid drop collector through a transparent cavity, the adjustable direct current power supply is provided with three interfaces, wherein the liquid drop generator and the liquid drop collector are connected through the positive electrode and the negative electrode of one interface, the positive electrode and the negative electrode of one interface are connected with the positive electrode and the negative electrode of the conductive pump, the positive electrode and the negative electrode of the last interface are connected with the lower side and the upper side of the transparent cavity, high-temperature liquid subjected to heat exchange through the heat exchanger is conveyed into the liquid drop generator, the liquid is charged through charge injection into the liquid drop generator, and liquid drops generated by the liquid drop generator are sprayed out through a nozzle, under the action of a space electric field formed in the transparent cavity, the liquid drops move to the liquid drop collector through the transparent cavity, and the liquid drops collected by the liquid drop collector are pumped back to the liquid drop generator through the electric conduction pump; the liquid storage device is communicated with the inlet end of the conductivity pump through a pipeline, and a control valve is mounted on a connecting pipeline between the liquid storage device and the inlet end of the conductivity pump.
Furthermore, the number of the conductance pumps is 1-10, and the conductance pumps are connected in parallel.
Furthermore, the operating temperature of the dielectric liquid is 275-350K, and the temperature of a nozzle in the liquid drop generator is 300-350K.
Furthermore, the voltage range of the adjustable direct-current high-voltage power supply is 0-1 KV.
Further, the dielectric liquid is an organic insulating material.
Furthermore, the diameter of the spray liquid drop is 100-300 μm, and the movement speed of the liquid drop is 0.05-0.5 m/s.
Furthermore, the aperture of the nozzle in the liquid drop generator is 1-3 mm.
Furthermore, the transparent cavity is of a wedge-shaped structure, the large end of the transparent cavity is connected with the liquid drop generator, and the small end of the transparent cavity is connected with the liquid drop collector.
Further, the length of the transparent cavity is 1 m.
Furthermore, the transparent cavity is made of silicon dioxide.
Compared with the prior art, the invention has the following effects:
this application adopts the conductance pump to replace traditional mechanical pump to provide power. The electric conduction pump is based on an electric field reinforced decomposition combination mechanism, the electric field is utilized to drive the dielectric fluid to flow, and theoretically, all electric energy can be converted into fluid kinetic energy, so that more energy is saved. In addition, the conductance pump is small in size, does not have a complicated mechanical energy conversion device, and does not have vibration and noise.
This application combines together conductance pump and electrospray, in space liquid drop radiation heat transfer system, adopts conductance pump drive circulation flow and electric field regulation and control liquid drop diameter and motion trail simultaneously, utilizes the high-efficient operation of one set of simple power realization whole device, abandons traditional mechanical pump to exist, realizes the continuous intelligent control of entire system. The heat exchanger overcomes the defects of the space radiation heat exchange technology in the prior art, avoids multiple transitions of electric energy, mechanical energy and fluid kinetic energy, realizes the direct conversion of the electric energy to the fluid kinetic energy, and further realizes the efficient utilization of the energy.
The application is particularly applicable to environments such as vacuum microgravity.
According to the liquid drop radiation heat dissipation control system, on one hand, liquid drop atomization and electric field regulation and control of the space flight trajectory of liquid drops are achieved through electrospray, the control of the particle size of the liquid drops and the regulation of the running trajectory can be achieved, the control of a liquid drop radiation heat dissipation section is achieved, on the other hand, a conductive pump is adopted to provide driving force for the whole circulation loop, and the optimization design of the whole system is achieved.
Drawings
FIG. 1 is a schematic diagram of the present application;
fig. 2 is a schematic three-dimensional structure of the present application.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1-2, and an electronic spray droplet radiation heat dissipation device driven by a conductance pump comprises a conductance pump 1, a heat exchanger 2, a droplet generator 3, a droplet collector 4, a liquid storage device 5 and an adjustable dc power supply 6, wherein the droplet collector 4, the conductance pump 1, the heat exchanger 2 and the droplet generator 3 are sequentially communicated through a pipeline, the droplet generator 3 and the droplet collector 4 are connected through a transparent cavity 7, the adjustable dc power supply 6 is provided with three interfaces, wherein the droplet generator 3 and the droplet collector 4 are connected through the positive electrode and the negative electrode of one interface, the positive electrode and the negative electrode of one interface are connected to the positive electrode and the negative electrode of the conductance pump 1, the positive electrode and the negative electrode of the last interface are connected to the lower side and the upper side of the transparent cavity 7, and a high-temperature liquid after heat exchange by the heat exchanger 2 is conveyed to the droplet generator 3, the liquid is charged by injecting charges into the liquid drop generator 3, liquid drops generated by the liquid drop generator 3 are sprayed out through a nozzle and then move to the liquid drop collector 4 through the transparent cavity 7 under the action of a space electric field formed in the transparent cavity 7, and the liquid drops collected by the liquid drop collector 4 are sent back to the liquid drop generator 3 through the conductive pump 1; the liquid storage device 5 is communicated with the inlet end of the conductivity pump 1 through a pipeline, and a control valve 8 is arranged on a connecting pipeline between the liquid storage device 5 and the inlet end of the conductivity pump 1.
The control valve 8 is an intelligent control valve 8. The high-temperature liquid medium flowing out of the heat exchanger 2 is pressurized in the droplet generator 3 and passes through the nozzles, so that the atomization process is realized under the action of an electric field, and a plurality of atomization nozzles can work simultaneously when the large load runs.
By providing a transparent cavity 7, evaporation of the droplets is prevented.
In the application, the liquid drop generator 3, the liquid drop collector 4 and the transparent cavity 7 are hung outside the whole device, and other components in the device can be packaged to realize radiation heat dissipation to a low-temperature area. The largest floor area of the whole device is the space occupied by the radiation section, namely the transparent cavity 7. And the liquid drop heat dissipation is realized by designing enough size according to the requirement.
The adjustable direct current power supply 6 comprises three interfaces, wherein one interface is connected with the conductivity pump 1 to control the conductivity pump 1 to work; one interface is connected with the liquid drop generator 3 and the liquid drop collector 4 to realize the electrostatic atomization function; the last interface is connected with the transparent cavity 7 to realize the adjustment of the motion process of the charged liquid drops. The three power interfaces are required to realize continuous adjustable voltage and are used for realizing adjustment of different driving forces, different droplet diameters and different droplet movement directions.
Waste heat can come from a variety of sources, including mechanical component waste heat, industrial waste heat, and the like.
The single circulation can realize about 30% drop of the temperature of the liquid drop through radiation heat transfer. The accumulator 5 is intended to compensate for the loss of micro-droplets in the above cycle.
The number of the conductance pumps 1 is 1-10, and the conductance pumps are connected in parallel. The diameter of the conductive pump 1 is 0.01 m-0.0.03 m, and the length is 0.1 m-0.3 m. The high-voltage electrodes and the grounding ends in the conductive pump 1 are arranged in a staggered mode, and the arrangement distance is 0.01-0.0.03 m.
The operating temperature of the dielectric liquid is 275-350K, and the nozzle temperature in the droplet generator 3 is 300-350K.
The voltage range of the adjustable direct-current high-voltage power supply is 0-1 KV.
The dielectric liquid is an organic insulating material. Such as silicone oil DOW 705.
The voltage regulation range of the liquid drop generator 3 is 0-2 KV, the diameter of the sprayed liquid drop is 100-300 μm, and the movement speed of the liquid drop is 0.05-0.5 m/s. The spray droplet diameter and the droplet motion velocity value are adjusted according to the voltage on the regulating droplet generator 3.
The aperture of the nozzle in the liquid drop generator 3 is 1-3 mm.
The transparent cavity 7 is in a wedge-shaped structure, the large end of the transparent cavity is connected with the liquid drop generator 3, and the small end of the transparent cavity is connected with the liquid drop collector 4.
The length of the transparent cavity 7 is 1 m.
The transparent cavity 7 is made of silicon dioxide.
The working principle is as follows:
first, the dielectric liquid absorbs the waste heat of the internal system through heat conduction and convection in the heat exchanger, and the waste heat source can be heat dissipation of the electronic equipment and can also be generated by mechanical movement. By arranging the heat exchange layers in a staggered manner, the dielectric liquid takes waste heat from the heat exchanger 2 and heats up. The high-temperature liquid is transported to the droplet generator 3, charged by charge injection, and ejected through the nozzle, and then allowed to flow along a predetermined region by the action of a space electric field.
The range of the electric field intensity E on the transparent cavity 7 should be suitable for keeping the liquid drop in linear motion after being balanced by the electric field force and other acting forces, so that the intensity of the applied electric field needs to be adjusted according to the magnitude of local gravity, and a specific formula can be deduced to be E ═ g ρ π D 3 (iv)/6 q, wherein g is the local gravitational acceleration (m/s) 2 ) ρ is the droplet density (kg/m) 3 ) And q is the density of the charge injected at the nozzle (C/m) 3 ) And D is the diameter of the droplet.
Then, during the spatial movement between the droplet generator 3 and the droplet collector 4, the semitransparent droplets can be regarded as medium with emissivity being epsilon to gray body, and simultaneously surface radiation and participatory medium radiation occur, and energy is radiated to background environment. It is worth noting that the efficiency of radiation heat exchange depends not only on the specific surface area of the droplets, but also on the background ambient temperature, such as the space environment close to absolute zero, the energy density of droplet radiation is very high, and the effect of such droplet radiation devices is not obvious under the room temperature condition. The radiation energy of a single liquid drop in a space environment can be simply deduced to be S ∈ sigma pi D 2 T 4 Where σ is the Stefan Boltzmann constant, D is the droplet diameter (m), and T is the droplet surface temperature (K). In order to prevent the droplet collector 4 from sputtering, the droplet collector 4 is a concave structure, and a flow channel is designed below the concave structure, and the droplet collector 4 of the structure is the prior art and will not be described herein again.
Finally, the droplets flow back to the conductance pump 1, and the whole electronic spray droplet radiation heat sink is driven to circulate by pressurizing in the conductance pump 1.
The operation principle of the conductivity pump 1 is that an external electric field strengthens a charge decomposition-combination mechanism near an electrode, free charges are generated at a position, close to a high-voltage electrode plate, of dielectric liquid (namely, a position close to a liquid drop generator 3), and under the action of the electric field, the free charges move towards an adjacent negative electrode plate (namely, a liquid drop collector 4) and exert coulomb force on fluid, so that the flowing process of the dielectric liquid is pushed. The invention adopts the step-by-step configuration of the high-voltage electrode and the grounding terminal, thus forming the step-by-step pressurization of the dielectric liquid and realizing the output of certain power. This application adopts 1 ~ 10 conductance pumps 1 to connect in parallel, and the configuration winding group is 5 ~ 20 groups on the single conductance pump 1.
The application adopts the conductance pump 1 to replace the traditional mechanical pump for providing power. The electric conduction pump 1 is based on an electric field reinforced decomposition and combination mechanism, utilizes an electric field to drive the flow of dielectric fluid, and can theoretically convert all electric energy into fluid kinetic energy, thereby saving more energy. In addition, the conductivity pump 1 is small in size, does not have a complicated mechanical energy conversion device, and does not have vibration and noise.
According to the electric spray device, a conductive pump 1 is combined with electric spray, in a space liquid drop radiation heat transfer system, the conductive pump 1 is adopted to drive circulation flow and an electric field is adopted to regulate and control the diameter and the motion track of liquid drops (as the derivation formula of the electric field intensity E, the diameter D and the electric charge q of the sprayed liquid drops are controlled by regulating the applied voltage in the electric spray process, and the voltage applied to a transparent cavity 7 is regulated, so that the electric field can be changed to realize the balance and the motion track control of the liquid drops), a set of simple power supply is utilized to realize the efficient operation of the whole device, the existence of a traditional mechanical pump is abandoned, and the continuous intelligent control of the whole system is realized. The heat exchanger overcomes the defects of the space radiation heat exchange technology in the prior art, avoids multiple transitions of electric energy, mechanical energy and fluid kinetic energy, realizes the direct conversion of the electric energy to the fluid kinetic energy, and further realizes the efficient utilization of the energy.
The application is particularly applicable to environments such as vacuum microgravity.
According to the electric spray control system, on one hand, liquid drop atomization and electric field regulation and control of the space flight trajectory of liquid drops are realized through electric spray, the control of the particle size of the liquid drops and the regulation of the running trajectory can be realized, the control of a liquid drop radiation heat dissipation section is realized, on the other hand, the electric conduction pump 1 is adopted to provide driving force for the whole circulation loop, and the optimization design of the whole system is realized.
This application adopts the electric spray to have two technical advantages, at first, overcomes liquid drop surface tension through electric field force, can realize the more even atomization process of more droplet diameter, and secondly, can be through the size of control applied voltage (as the adjustable direct current constant voltage power supply shown in figure 1), realize the control of spraying liquid drop diameter and flow, and then can change space radiation heat transfer intensity as required. On the other hand, because the sprayed droplets are charged, voltage is applied to the glass cover on the outer side of the flight path of the droplets, and the control of the motion process of the droplets can be realized. For example, in a ground environment, the applied voltage can be increased to overcome the gravity action to realize the suspension advance of the liquid drops, and in a microgravity environment, the applied voltage can be adjusted according to the local gravity to realize the intelligent control of the flight process of the liquid drops in the glass cover. And finally, the conductance pump 1 is used as a driving pump of the whole circulation, and the pressure and the speed of the dielectric liquid are adjusted by adjusting the working voltage of the conductance pump 1. The adjustable direct current stabilized voltage power supply comprises three channels, wherein the positive electrode and the negative electrode of the three channels are respectively connected with the droplet generator 3 (containing the atomizing nozzle) -the collector, the lower side-the upper side of the transparent cavity 7 and the positive electrode-the negative electrode of the conductivity pump 1.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1-2, and the present application is applied to chip heat dissipation, that is, waste heat in fig. 2 comes from a chip, and the droplet radiation heat dissipation device of the present application is used to realize chip temperature control. The chip may alternatively be in direct contact with the cooling medium (i.e., the aforementioned dielectric liquid), i.e., immersed in liquid silicone oil, or may be transferred to the heat sink before being transferred to the liquid. The related chip heat dissipation is in a special environment, such as the chip heat dissipation of a spacecraft and a satellite, wherein the heat conduction and convection processes are very weak and can be ignored, and at the moment, the electric conduction pump 1 of the application can play an important role in driving a liquid drop radiation heat dissipation system. Examples are as follows: assuming a large high-performance processor (containing multiple chips) with 1KW of heat dissipation power, the flow rate of the circulating medium is 0.01m 3 The initial temperature is 295K, the specific heat according to the silicone oil at normal temperature is 2.49kJ/kg K, and the density is 0.94kg/m 3 The outflow temperature may be approximately calculated to be 335K. In liquidIn the droplet generator 3, 10 to 30 nozzles are designed, and the diameter of the atomized droplets is about 100 to 300 μm. Through a radiation space of about 1m in length, the temperature drop upon reaching the droplet collector 4 is about 290K. The cooling medium is pressurized by a plurality of conductance pumps 1 and returned to the heat exchanger.
The intelligent control process mainly comprises the following aspects: the temperature of the chip is monitored by designing a thermocouple, the temperature is fed back to the adjustable direct current power supply 6 when the temperature is too high, the power of the conductance pump 1 is improved by increasing voltage, and the flow of a cooling medium is increased to realize chip cooling. Secondly, when the liquid drops collide with the surrounding outer covers in the moving process, the voltage difference between the outer covers is adjusted to change the track of the liquid drops. And finally, the part lost by the evaporation of the working medium can be intelligently adjusted and supplemented through a liquid storage device.
Claims (10)
1. An electric spray liquid drop radiation heat dissipation device driven by a conductance pump is characterized in that: the device comprises an electric conduction pump (1), a heat exchanger (2), a liquid drop generator (3), a liquid drop collector (4), a liquid storage device (5) and an adjustable direct current power supply (6), wherein the liquid drop collector (4), the electric conduction pump (1), the heat exchanger (2) and the liquid drop generator (3) are sequentially communicated through a pipeline, the liquid drop generator (3) is connected with the liquid drop collector (4) through a transparent cavity (7), three interfaces are arranged on the adjustable direct current power supply (6), wherein the liquid drop generator (3) and the liquid drop collector (4) are connected through a positive electrode and a negative electrode of one interface, the positive electrode and the negative electrode of one interface are connected with the positive electrode and the negative electrode of the electric conduction pump (1), the lower side and the upper side of the transparent cavity (7) are connected through the positive electrode and the negative electrode of the last interface, and high-temperature liquid after heat exchange through the heat exchanger (2) is conveyed into the liquid drop generator (3), the liquid is charged by injecting charges into the liquid drop generator (3), liquid drops generated by the liquid drop generator (3) are sprayed out through a nozzle and then move to the liquid drop collector (4) through the transparent cavity (7) under the action of a space electric field formed in the transparent cavity (7), and the liquid drops collected by the liquid drop collector (4) are sent back to the liquid drop generator (3) through the electric conduction pump (1); the liquid storage device (5) is communicated with the inlet end of the conductivity pump (1) through a pipeline, and a control valve (8) is arranged on a connecting pipeline between the liquid storage device (5) and the inlet end of the conductivity pump (1); the droplet generator (a)3) The liquid drop collector (4) and the transparent cavity (7) are hung outside the whole device, and other components in the device are packaged to realize radiation heat dissipation to a low-temperature area; the range of the electric field intensity E on the transparent cavity (7) is adjusted according to the magnitude of the local gravity, and the specific formula is that E is the intensity of the applied electric field, wherein g is the local gravity acceleration (m/s) 2 ) ρ is the droplet density (kg/m) 3 ) And q is the density of the charge injected at the nozzle (C/m) 3 ) (ii) a The electric spray droplet radiation heat dissipation device driven by the conductance pump is used for chip heat dissipation of spacecrafts and satellites, the temperature of the chip is monitored through a thermocouple, the temperature is fed back to an adjustable direct current power supply (6) when the temperature is too high, the power of the conductance pump (1) is improved through increasing voltage, and the flow of a cooling medium is increased to achieve chip cooling.
2. An electrically conductive pump driven electrospray droplet radiative heat sink as recited in claim 1, wherein: the number of the conductive pumps (1) is 1-10, and the conductive pumps are connected in parallel.
3. An electrically conductive pump driven electrospray droplet radiative heat sink as claimed in claim 1 or 2, wherein: the operating temperature of the dielectric liquid is 275-350K, and the nozzle temperature in the droplet generator (3) is 300-350K.
4. An electrically conductive pump driven electrospray droplet radiative heat sink as recited in claim 1, wherein: the voltage range of the adjustable direct-current high-voltage power supply is 0-1 KV.
5. An electrically conductive pump driven electrospray droplet radiative heat sink as claimed in claim 1, 2 or 4, wherein: the dielectric liquid is an organic insulating material.
6. An electrically conductive pump driven electrospray droplet radiative heat sink as recited in claim 1, wherein: the diameter of the spray liquid drop is 100-300 μm, and the movement speed of the liquid drop is 0.05-0.5 m/s.
7. An electrically conductive pump driven electrospray droplet radiative heat sink as recited in claim 6, wherein: the aperture of the nozzle in the liquid drop generator (3) is 1-3 mm.
8. An electrically conductive pump driven electrospray droplet radiative heat sink as claimed in claim 1, 2, 4, 6 or 7, wherein: the transparent cavity (7) is of a wedge-shaped structure, the large end of the transparent cavity is connected with the liquid drop generator (3), and the small end of the transparent cavity is connected with the liquid drop collector (4).
9. An electrically conductive pump driven electrospray droplet radiative heat sink as recited in claim 8, wherein: the length of the transparent cavity (7) is 1 m.
10. An electrically conductive pump driven electrospray droplet radiative heat sink as claimed in claim 1, 2, 4, 6, 7 or 9, wherein: the transparent cavity (7) is made of silicon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465567.8A CN112604833B (en) | 2020-12-14 | 2020-12-14 | Electric spray liquid drop radiation heat dissipation device driven by conductive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465567.8A CN112604833B (en) | 2020-12-14 | 2020-12-14 | Electric spray liquid drop radiation heat dissipation device driven by conductive pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112604833A CN112604833A (en) | 2021-04-06 |
| CN112604833B true CN112604833B (en) | 2022-09-13 |
Family
ID=75234505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011465567.8A Active CN112604833B (en) | 2020-12-14 | 2020-12-14 | Electric spray liquid drop radiation heat dissipation device driven by conductive pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112604833B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144758A (en) * | 2017-12-26 | 2018-06-12 | 中国科学院工程热物理研究所 | Spray cooling device based on electrostatic atomization |
| CN108580074A (en) * | 2018-03-29 | 2018-09-28 | 江苏大学 | A kind of method for generation and device of the single size droplet diameter of adjustable atomization |
| CN109724292A (en) * | 2017-10-31 | 2019-05-07 | 东南大学 | A kind of spray cooling device based on electrostatic spraying |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001280627A1 (en) * | 2000-07-18 | 2002-01-30 | Illinois Institute Of Technology | Electrohydrodynamic conduction pump |
| CN101107444B (en) * | 2005-01-24 | 2011-06-15 | 文蒂瓦公司 | Electro-hydrodynamic pump and cooling apparatus comprising an electro-hydrodynamic pump |
| US9038407B2 (en) * | 2012-10-03 | 2015-05-26 | Hamilton Sundstrand Corporation | Electro-hydrodynamic cooling with enhanced heat transfer surfaces |
| CN108452964B (en) * | 2018-05-17 | 2024-04-09 | 江苏大学 | Electrostatic atomization cooling system for high heat flux surface |
| CN111229498A (en) * | 2018-11-09 | 2020-06-05 | 湖南迪宏物联科技有限公司 | Periodic spraying control circuit and spraying controller |
| CN111695218B (en) * | 2020-06-12 | 2022-11-04 | 西安交通大学 | Parameter determination method for liquid drop generator in space radiation heat exchange system |
-
2020
- 2020-12-14 CN CN202011465567.8A patent/CN112604833B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724292A (en) * | 2017-10-31 | 2019-05-07 | 东南大学 | A kind of spray cooling device based on electrostatic spraying |
| CN108144758A (en) * | 2017-12-26 | 2018-06-12 | 中国科学院工程热物理研究所 | Spray cooling device based on electrostatic atomization |
| CN108580074A (en) * | 2018-03-29 | 2018-09-28 | 江苏大学 | A kind of method for generation and device of the single size droplet diameter of adjustable atomization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112604833A (en) | 2021-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104696180B (en) | Magnetic field regulation type liquid phase working fluid large area microcavity discharge plasma micro-thruster | |
| CN105934139B (en) | The working medium cooling system by contact and its method of work of high power device | |
| US11293311B2 (en) | Refrigeration apparatus and method | |
| CN108452964B (en) | Electrostatic atomization cooling system for high heat flux surface | |
| CN111409650B (en) | Low vacuum pipeline train wind circulation cooling system along line | |
| CN204259347U (en) | A kind of Vehicular charger liquid metal self adaptation thermal drivers heat abstractor | |
| CN110230939B (en) | Modularized spray type heat dissipation heat sink device | |
| CN104875116B (en) | Nano-fluid electrostatic atomization and the integrated micro lubricating grinding attachment of electric card heat pipe | |
| CN108196650B (en) | Supercomputer cooling heat abstractor based on liquid metal | |
| CN208554664U (en) | A kind of electrostatic atomization cooling system for high heat flux density surface | |
| EP2488006B1 (en) | Temperature equalization apparatus jetting fluid for thermal conduction used in electrical equipment | |
| CN112604833B (en) | Electric spray liquid drop radiation heat dissipation device driven by conductive pump | |
| CN101764547A (en) | Liquid metal-cooling cascading semiconductor thermoelectric power generation device | |
| Zhang et al. | Perspective on liquid metal enabled space science and technology | |
| CN110381700A (en) | A kind of chamber and vapor chamber integral type phase-change cooling device and system by spraying | |
| CN205828436U (en) | Novel semi-conductor thermo-electric generation chip structure | |
| CN117080187B (en) | Thermoelectric cooling structure of BMS battery management system | |
| CN111540716B (en) | Electrostatic flash evaporation micro-spray circulating cooling system for heat dissipation of high-power chip | |
| CN105923171A (en) | Modular integrated satellite multifunctional structure and polymers | |
| CN105742471A (en) | Novel semiconductor thermoelectric power generation chip structure | |
| CN111023878B (en) | Power-adjustable space radiation heat dissipation system and working method thereof | |
| CN205847818U (en) | The working medium cooling system by contact of high power device | |
| CN114518005A (en) | Pipeline wall sleeve type cooling circulation heat dissipation method | |
| Tian et al. | Design and research of integrated components for microsatellite thermal control system | |
| CN108806813B (en) | Nuclear pulse power supply and operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |