CN113295447A - Verification system of micro-channel phase change radiator - Google Patents
Verification system of micro-channel phase change radiator Download PDFInfo
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- CN113295447A CN113295447A CN202110600116.9A CN202110600116A CN113295447A CN 113295447 A CN113295447 A CN 113295447A CN 202110600116 A CN202110600116 A CN 202110600116A CN 113295447 A CN113295447 A CN 113295447A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
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Abstract
The invention discloses a verification system of a microchannel phase change radiator, which can quantitatively supply heat energy through a heat source, can specify the flow velocity of a working medium flowing through the microchannel phase change radiator to be tested through a working medium supply device in the heat radiation process of the microchannel phase change radiator to be tested, and can also collect temperature values of a plurality of specified positions through a temperature collection module in the working process of the microchannel phase change radiator to be tested, so that a control device can calculate the heat exchange quantity of the microchannel phase change radiator to be tested according to the temperature values and the specified flow velocity, thereby verifying, researching and analyzing the heat radiation performance of the microchannel phase change radiator.
Description
Technical Field
The invention relates to the field of microchannel phase change heat dissipation, in particular to a verification system of a microchannel phase change heat radiator.
Background
Novel heat sink adopting micro-channel phase-change heat dissipation technologyThe heat technology is suitable for high heat flow density devices, has strong heat exchange capacity, and the heat dissipation capacity can reach 300W/cm2Above, the prior microchannel heat dissipation technology is still in the initial stage, and as the channel size is reduced, the phase change of fluid (working medium for absorbing heat), rules of heat transfer, mass transfer and the like are greatly changed from the conventional scale, so that the technology needs to be deeply researched, which is a necessary trend of heat transfer scientific development, is also a key for solving numerous problems of microelectronic devices, high-integration devices and the like, and has far-reaching theoretical and practical significance.
However, a verification system for a microchannel phase change heat radiator is lacking in the prior art, so that on one hand, the heat radiation performance of the microchannel phase change heat radiator cannot be verified, and on the other hand, research and analysis on the heat radiation performance of the microchannel phase change heat radiator cannot be carried out.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a verification system of a micro-channel phase change radiator, which can calculate the heat exchange quantity of the micro-channel phase change radiator to be tested so as to verify, research and analyze the heat radiation performance of the micro-channel phase change radiator.
In order to solve the above technical problem, the present invention provides a verification system for a microchannel phase change heat sink, comprising:
the heat source is connected with the micro-channel phase change radiator to be detected and is used for providing heat energy with specified quantity;
the working medium supply device is connected with the input end of the micro-channel phase change radiator to be tested and is used for supplying working medium with specified flow speed to the micro-channel phase change radiator to be tested under the control of the control device;
the condensing device is respectively connected with the output end of the micro-channel phase-change radiator to be detected and the working medium supply device and is used for condensing the working medium flowing out of the micro-channel phase-change radiator and then sending the working medium back to the working medium supply device;
the temperature acquisition module is connected with the micro-channel phase change radiator to be detected and is used for acquiring temperature values of a plurality of specified positions in the micro-channel phase change radiator to be detected;
the control device is respectively connected with the working medium supply device and the temperature acquisition module and is used for calculating the heat exchange quantity of the micro-channel phase change radiator to be measured according to the plurality of temperature values and the specified flow rate.
Preferably, the verification system of the microchannel phase change heat sink further comprises:
the pressure difference acquisition module is respectively connected with the micro-channel phase change radiator to be detected and the control device and is used for acquiring the pressure difference value of a working medium inlet and a working medium outlet of the micro-channel phase change radiator to be detected;
the control device is further used for obtaining the pressure difference value so as to analyze the pressure drop characteristic of the micro-channel phase change radiator to be tested.
Preferably, the condensing means comprises:
the first electromagnetic valve is connected with the output end of the micro-channel phase change radiator to be detected and the control device respectively and is used for being opened or closed under the control of the control device;
the second electromagnetic valve is respectively connected with the output end of the micro-channel phase change radiator to be detected and the control device and is used for being opened or closed under the control of the control device;
the condenser is respectively connected with the first electromagnetic valve and the working medium supply device and is used for condensing the working medium flowing into the condenser and then sending the working medium back to the working medium supply device;
and the heat energy collecting device is respectively connected with the second electromagnetic valve and the working medium supply device and is used for replacing heat energy in the working medium flowing into the heat energy collecting device and sending the working medium after the heat energy replacement back to the working medium supply device.
Preferably, the verification system of the microchannel phase change heat sink further comprises:
the comparison radiator is respectively connected with the working medium supply device and the condensing device;
the third electromagnetic valve is respectively connected with the output end of the working medium supply device, the micro-channel phase change radiator to be tested and the control device and is used for being opened or closed under the control of the control device;
the fourth electromagnetic valve is respectively connected with the output end of the working medium supply device, the comparison radiator and the control device and is used for being opened or closed under the control of the control device;
the temperature acquisition module and the pressure difference acquisition module are detachably connected with the micro-channel phase change radiator to be detected; the temperature acquisition module and the pressure difference acquisition module are detachably connected with the micro-channel phase change radiator to be detected; the states of the third electromagnetic valve and the fourth electromagnetic valve are mutually exclusive.
Preferably, the thermal energy collection device comprises:
the heat exchanger is used for replacing heat energy in the working medium supplied by the second electromagnetic valve into silicon oil supplied by the high-temperature circulator;
the high-temperature circulator is connected with the heat storage tank at a second end and is used for supplying silicon oil in the heat storage tank to the heat exchanger;
the heat storage tank is used for receiving the silicone oil supplied by the heat exchanger and used for replacing the silicone oil to obtain heat so as to store the heat energy.
Preferably, the verification system of the microchannel phase change heat sink further comprises:
and the prompter is connected with the control device and used for prompting the heat exchange amount and the pressure difference value under the control of the control device.
Preferably, the temperature acquisition module comprises four thermocouples equidistantly arranged on the wall surface of the micro-channel phase change heat radiator to be measured.
Preferably, the working fluid supply device comprises:
the working medium groove is used for accommodating working medium;
and the driving pump is respectively connected with the working medium groove and the micro-channel phase-change radiator to be detected and is used for providing working medium with specified flow speed to the micro-channel phase-change radiator to be detected under the control of the control device.
Preferably, the control device is a computer.
Preferably, the verification system of the microchannel phase change heat sink further comprises:
and the human-computer interaction device is connected with the control device and is used for setting the specified amount and the specified speed through the human-computer interaction device.
The invention provides a verification system of a microchannel phase-change radiator, which can quantitatively supply heat energy through a heat source, can specify the flow velocity of a working medium flowing through the microchannel phase-change radiator to be tested through a working medium supply device in the heat radiation process of the microchannel phase-change radiator to be tested, and can also collect temperature values of a plurality of specified positions through a temperature collection module in the working process of the microchannel phase-change radiator to be tested, so that a control device can calculate the heat exchange quantity of the microchannel phase-change radiator to be tested according to the temperature values and the specified flow velocity, thereby verifying, researching and analyzing the heat radiation performance of the microchannel phase-change radiator.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a verification system for a microchannel phase change heat sink according to the present invention;
FIG. 2 is a schematic diagram of another verification system for a microchannel phase change heat sink according to the present invention;
fig. 3 is a schematic structural diagram of a condensing device according to the present invention.
Detailed Description
The core of the invention is to provide a verification system of the micro-channel phase-change radiator, which can calculate the heat exchange quantity of the micro-channel phase-change radiator to be tested, thereby verifying, researching and analyzing the heat dispersion performance of the micro-channel phase-change radiator.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a verification system of a micro-channel phase change heat sink provided in the present invention, the verification system of the micro-channel phase change heat sink includes:
the heat source 1 is connected with the micro-channel phase change radiator to be detected and is used for providing heat energy with specified quantity;
the working medium supply device 2 is connected with the input end of the micro-channel phase-change radiator to be detected and is used for supplying working medium with specified flow speed to the micro-channel phase-change radiator to be detected under the control of the control device 5;
the condensing device 3 is respectively connected with the output end of the microchannel phase change radiator to be detected and the working medium supply device 2 and is used for condensing the working medium flowing out of the microchannel phase change radiator and then sending the working medium back to the working medium supply device 2;
the temperature acquisition module 4 is connected with the micro-channel phase change radiator to be detected and is used for acquiring temperature values of a plurality of specified positions in the micro-channel phase change radiator to be detected;
and the control device 5 is respectively connected with the working medium supply device 2 and the temperature acquisition module 4 and is used for calculating the heat exchange quantity of the micro-channel phase change radiator to be measured according to a plurality of temperature values and the specified flow rate.
Specifically, in view of the technical problems in the background art, the present application is to design a verification system for a microchannel phase change heat sink to calculate the heat exchange amount of the microchannel phase change heat sink to be tested, so as to verify the heat dissipation performance of the microchannel phase change heat sink to be tested.
In order to accurately control the heat productivity of the heat source 1, the controllable heat source 1 is arranged in the application, and the heat energy with the specified quantity can be provided through the controllable heat source 1, so that the heat dispersion performance of the micro-channel phase change radiator to be measured can be verified better by combining the heat productivity.
Specifically, the flow velocity of the working medium has great influence on the heat dissipation effect of the microchannel phase change heat radiator, so that the working medium supply device 2 capable of adjusting the flow velocity is arranged in the application, and the control device 5 can be conveniently arranged through the specified flow velocity to calculate the heat exchange quantity of the microchannel phase change heat radiator to be measured finally by using the control device.
The condensing device 3 can condense the working medium flowing out of the microchannel phase-change radiator and then send the working medium back to the working medium supply device 2, so that the heat on the microchannel phase-change radiator is taken away by the circularly utilized working medium.
Specifically, in order to calculate the heat exchange amount of the microchannel phase change heat sink to be measured, the temperature acquisition module 4 needs to acquire temperature values of a plurality of points in the microchannel phase change heat sink to be measured, and since the heat exchange value is also directly related to the flow velocity of the working medium, the heat exchange amount can be calculated according to the temperature values and the specified flow velocity, and the specific calculation process can be various, which is not limited herein.
The invention provides a verification system of a microchannel phase-change radiator, which can quantitatively supply heat energy through a heat source, can specify the flow velocity of a working medium flowing through the microchannel phase-change radiator to be tested through a working medium supply device in the heat radiation process of the microchannel phase-change radiator to be tested, and can also collect temperature values of a plurality of specified positions through a temperature collection module in the working process of the microchannel phase-change radiator to be tested, so that a control device can calculate the heat exchange quantity of the microchannel phase-change radiator to be tested according to the temperature values and the specified flow velocity, thereby verifying, researching and analyzing the heat radiation performance of the microchannel phase-change radiator.
For better explaining the embodiments of the present invention, please refer to fig. 2, fig. 2 is a schematic structural diagram of another verification system of a microchannel phase change heat sink according to the present invention, and on the basis of the embodiments:
as a preferred embodiment, the verification system of the microchannel phase change heat sink further comprises:
the pressure difference acquisition module 6 is respectively connected with the microchannel phase change radiator to be detected and the control device 5 and is used for acquiring the pressure difference value of the working medium inlet and the working medium outlet of the microchannel phase change radiator to be detected;
the control device 5 is further configured to obtain a pressure difference value so as to analyze a pressure drop characteristic of the microchannel phase change heat sink to be tested.
Specifically, considering that the heat dissipation capacity of the microchannel phase change radiator has a direct relation with the pressure drop characteristic thereof, in order to research and analyze the pressure drop characteristic, the pressure difference value of the working medium inlet and the working medium outlet of the microchannel phase change radiator to be detected can be collected through the pressure difference collecting module 6 in the application.
For better explaining the embodiment of the present invention, please refer to fig. 3, fig. 3 is a schematic structural diagram of a condensing apparatus according to the present invention, and as a preferred embodiment, the condensing apparatus 3 includes:
the first electromagnetic valve 31 is respectively connected with the output end of the micro-channel phase change radiator to be detected and the control device 5 and is used for being opened or closed under the control of the control device 5;
the second electromagnetic valve 32 is respectively connected with the output end of the micro-channel phase change radiator to be detected and the control device 5, and is used for being opened or closed under the control of the control device 5;
the condenser 33 is respectively connected with the first electromagnetic valve 31 and the working medium supply device 2 and is used for condensing the working medium flowing into the condenser and then sending the working medium back to the working medium supply device 2;
and the heat energy collecting device 34 is respectively connected with the second electromagnetic valve 32 and the working medium supply device 2 and is used for replacing the heat energy in the working medium flowing into the heat energy collecting device and sending the working medium after the heat energy replacement back to the working medium supply device 2.
Specifically, the heat in the working medium can be directly released to the environment by considering the condensation performed by the condenser 33, so that the waste of the heat energy is caused, and the requirement of heat energy recycling is determined under certain conditions, so that two loops of condensing reflux working media are arranged in the application, the heat energy can be released to the environment through the condenser 33, and the heat energy in the working medium can be replaced and stored through the heat energy collecting device 34, thereby realizing the saving of the heat energy.
Of course, the condensing device 3 may have other specific structures besides the specific structure, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the verification system of the microchannel phase change heat sink further comprises:
a comparison radiator 7 connected with the working medium supply device 2 and the condensing device 3 respectively;
the third electromagnetic valve 8 is respectively connected with the output end of the working medium supply device 2, the micro-channel phase change radiator to be detected and the control device 5 and is used for being opened or closed under the control of the control device 5;
the fourth electromagnetic valve 9 is respectively connected with the output end of the working medium supply device 2, the comparison radiator 7 and the control device 5 and is used for being opened or closed under the control of the control device 5;
the temperature acquisition module 4 and the pressure difference acquisition module 6 are detachably connected with the micro-channel phase change radiator to be detected; the temperature acquisition module 4 and the pressure difference acquisition module 6 are detachably connected with the micro-channel phase change radiator to be detected; the states of the third solenoid valve 8 and the fourth solenoid valve 9 are mutually exclusive.
Specifically, in order to refer to and compare the heat dissipation performance of the microchannel phase change heat sink to be tested, a heat sink 7 for comparison is further provided in the application, the heat sinks can be switched by a third electromagnetic valve 8 and a fourth electromagnetic valve 9, and the heat source 1 can also be selectively connected with any one of the heat sinks, for example, when the heat transfer amount of the heat sink 7 for comparison is tested, the fourth electromagnetic valve 9 can be switched on, the heat source 1 is connected with the heat sink 7 for comparison, and the temperature acquisition module 4 and the differential pressure acquisition module 6 are both connected with the heat sink 7 for comparison.
The type of the comparative heat sink 7 may be various, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the thermal energy collection device 34 comprises:
the heat exchanger is used for replacing heat energy in the working medium supplied by the second electromagnetic valve 32 into silicon oil supplied by the high-temperature circulator;
the high-temperature circulator is connected with the heat storage tank at the second end and is used for supplying the silicon oil in the heat storage tank to the heat exchanger;
and the heat storage tank is used for receiving the silicone oil supplied by the heat exchanger and replaced to obtain heat so as to store the heat energy.
Specifically, the thermal energy collecting device 34 in the embodiment of the present invention has the advantages of simple structure, low cost, and convenient maintenance.
Of course, besides this specific structure, the structure of the thermal energy collecting device 34 may be other various types, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the verification system of the microchannel phase change heat sink further comprises:
and the prompter 10 is connected with the control device 5 and is used for prompting the heat exchange amount and the pressure difference value under the control of the control device 5.
Specifically, the prompter 10 in the embodiment of the invention can facilitate the staff to know the heat exchange amount and the pressure difference value in the first time, which is beneficial to improving the working efficiency.
The prompting device 10 may be of various types, for example, a display, and the like, and the embodiment of the present invention is not limited herein.
In a preferred embodiment, the temperature acquisition module 4 includes four thermocouples equidistantly disposed on the wall surface of the phase change heat sink of the microchannel to be measured.
Specifically, through analysis and discovery, the heat exchange amount can be calculated more accurately through the four temperature values arranged at equal intervals.
Specifically, can be connected the computer among controlling means 5 with arduino control module, arduino control module is connected with adc again, and adc is connected with four thermocouples at last, and adc can carry out analog-to-digital conversion, and arduino control module then can carry out nonlinear compensation to the data that the thermocouple was gathered.
Of course, the number of the temperature collection points may be other than four, and the arrangement manner may also be non-equidistant, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the working medium supply device 2 comprises:
the working medium groove is used for accommodating working medium;
and the driving pump is respectively connected with the working medium groove and the micro-channel phase-change radiator to be detected and is used for providing the working medium with the specified flow speed to the micro-channel phase-change radiator to be detected under the control of the control device 5.
Specifically, the specified flow rate can be accurately controlled by driving the pump, and the control device 5 can directly know the specified flow rate, so that the working medium supply device 2 in the embodiment of the invention has a simple structure and is low in cost.
Of course, besides this configuration, the working medium supply device 2 may be of other various types, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the control device 5 is a computer.
Specifically, the computer has the advantages of excellent performance, strong stability, high maturity and the like.
Specifically, controlling means 5 can connect the opto-coupler relay module through USB2016 control module, and the opto-coupler relay module can be connected with first solenoid valve 31, second solenoid valve 32, third solenoid valve 8 and fourth solenoid valve 9 respectively to realize the control to the solenoid valve through the opto-coupler relay module, equally, also can connect differential pressure collection module 6 through USB2016 control module.
Of course, the control device 5 may be of various types other than a computer.
As a preferred embodiment, the verification system of the microchannel phase change heat sink further comprises:
and a man-machine interaction device 11 connected with the control device 5 and used for setting the designated amount and the designated speed through the man-machine interaction device.
Specifically, the man-machine interaction device 11 can facilitate the worker to quickly and conveniently set the specified amount and the specified speed, so as to further improve the working efficiency.
The human-computer interaction device 11 may be of various types, for example, a touch screen or a key, and the embodiment of the present invention is not limited herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A verification system for a microchannel phase change heat sink, comprising:
the heat source is connected with the micro-channel phase change radiator to be detected and is used for providing heat energy with specified quantity;
the working medium supply device is connected with the input end of the micro-channel phase change radiator to be tested and is used for supplying working medium with specified flow speed to the micro-channel phase change radiator to be tested under the control of the control device;
the condensing device is respectively connected with the output end of the micro-channel phase-change radiator to be detected and the working medium supply device and is used for condensing the working medium flowing out of the micro-channel phase-change radiator and then sending the working medium back to the working medium supply device;
the temperature acquisition module is connected with the micro-channel phase change radiator to be detected and is used for acquiring temperature values of a plurality of specified positions in the micro-channel phase change radiator to be detected;
the control device is respectively connected with the working medium supply device and the temperature acquisition module and is used for calculating the heat exchange quantity of the micro-channel phase change radiator to be measured according to the plurality of temperature values and the specified flow rate.
2. The system of claim 1, further comprising:
the pressure difference acquisition module is respectively connected with the micro-channel phase change radiator to be detected and the control device and is used for acquiring the pressure difference value of a working medium inlet and a working medium outlet of the micro-channel phase change radiator to be detected;
the control device is further used for obtaining the pressure difference value so as to analyze the pressure drop characteristic of the micro-channel phase change radiator to be tested.
3. The verification system of a microchannel phase change heat sink of claim 2, wherein the condensing means comprises:
the first electromagnetic valve is connected with the output end of the micro-channel phase change radiator to be detected and the control device respectively and is used for being opened or closed under the control of the control device;
the second electromagnetic valve is respectively connected with the output end of the micro-channel phase change radiator to be detected and the control device and is used for being opened or closed under the control of the control device;
the condenser is respectively connected with the first electromagnetic valve and the working medium supply device and is used for condensing the working medium flowing into the condenser and then sending the working medium back to the working medium supply device;
and the heat energy collecting device is respectively connected with the second electromagnetic valve and the working medium supply device and is used for replacing heat energy in the working medium flowing into the heat energy collecting device and sending the working medium after the heat energy replacement back to the working medium supply device.
4. The system of claim 3, further comprising:
the comparison radiator is respectively connected with the working medium supply device and the condensing device;
the third electromagnetic valve is respectively connected with the output end of the working medium supply device, the micro-channel phase change radiator to be tested and the control device and is used for being opened or closed under the control of the control device;
the fourth electromagnetic valve is respectively connected with the output end of the working medium supply device, the comparison radiator and the control device and is used for being opened or closed under the control of the control device;
the temperature acquisition module and the pressure difference acquisition module are detachably connected with the micro-channel phase change radiator to be detected; the temperature acquisition module and the pressure difference acquisition module are detachably connected with the micro-channel phase change radiator to be detected; the states of the third electromagnetic valve and the fourth electromagnetic valve are mutually exclusive.
5. The system of claim 3, wherein the thermal energy harvesting device comprises:
the heat exchanger is used for replacing heat energy in the working medium supplied by the second electromagnetic valve into silicon oil supplied by the high-temperature circulator;
the high-temperature circulator is connected with the heat storage tank at a second end and is used for supplying silicon oil in the heat storage tank to the heat exchanger;
the heat storage tank is used for receiving the silicone oil supplied by the heat exchanger and used for replacing the silicone oil to obtain heat so as to store the heat energy.
6. The system of claim 2, further comprising:
and the prompter is connected with the control device and used for prompting the heat exchange amount and the pressure difference value under the control of the control device.
7. The system of claim 1, wherein the temperature acquisition module comprises four thermocouples equidistantly disposed on the wall of the microchannel phase change heat sink to be tested.
8. The verification system of a microchannel phase change heat sink of claim 1, wherein the working medium supply comprises:
the working medium groove is used for accommodating working medium;
and the driving pump is respectively connected with the working medium groove and the micro-channel phase-change radiator to be detected and is used for providing working medium with specified flow speed to the micro-channel phase-change radiator to be detected under the control of the control device.
9. The phase change heat sink validation system of claim 1, wherein the control device is a computer.
10. The phase change heat spreader of any of claims 1-9, wherein the phase change heat spreader verification system further comprises:
and the human-computer interaction device is connected with the control device and is used for setting the specified amount and the specified speed through the human-computer interaction device.
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