CN113251845B - Snowflake-like topological microchannel heat exchanger and heat exchange performance detection device thereof - Google Patents
Snowflake-like topological microchannel heat exchanger and heat exchange performance detection device thereof Download PDFInfo
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- F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
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Abstract
The invention belongs to the technical field of micro-channel enhanced heat dissipation, and particularly relates to a snowflake-like topological micro-channel heat exchanger and a fluid flow heat exchange performance detection device thereof, which are characterized in that: the snowflake-imitated topological microchannel heat exchanger comprises a snowflake-imitated topological microchannel heat exchanger (1) and an outlet adapter (2), wherein the snowflake-imitated topological microchannel heat exchanger (1) is provided with an inlet (4) and six outlets (5), a channel (3) is provided with one port communicated with the inlet (4) and six ports communicated with the outlets (5), the inlet (4) and the six outlets (5) are communicated through the channel (3), and a closed independent space for connecting the inlet (4) and the six outlets (5) is formed; the six outlet adapters (2) are respectively clamped at six outlets (5) of the snowflake-like topological microchannel heat exchanger (1). The snowflake-like topological microchannel heat exchanger and the heat exchange performance detection device thereof are provided, so that the problems that the heat dissipation requirement of a high-load electronic device cannot be met and the heat exchange efficiency is low in the prior art are solved.
Description
Technical Field
The invention belongs to the technical field of micro-channel enhanced heat dissipation, and particularly relates to a snowflake-like topological micro-channel heat exchanger and a fluid flow heat exchange performance detection device thereof.
Background
With the development of technology and the progress of processing means, electronic components tend to be miniaturized and integrated, but because the heat generated by the components is not changed, extremely high heat flux density is generated. Failure to dissipate such high heat flow can result in the temperature of the components being higher than it can withstand, resulting in the burning and failure of the components. To avoid electronic device failure, more efficient heat dissipation techniques are needed. The microchannel radiator is widely applied to heat dissipation in electronic equipment due to the advantages of small volume, strong comprehensive heat dissipation capability and the like. Researchers with the first microchannel heat exchanger were able to achieve extremely high heat flux cooling, so microchannel technology is now being applied to electronic devices that are becoming more and more integrated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a snowflake-like topological microchannel heat exchanger and a heat exchange performance detection device thereof, so as to solve the problems that the prior art cannot meet the heat dissipation requirement of high-load electronic devices and the heat exchange efficiency is low.
In order to solve the technical problem, the technical scheme of the invention is as follows: a snowflake-like topological microchannel heat exchanger is characterized in that: the snowflake-imitated topological microchannel heat exchanger comprises a snowflake-imitated topological microchannel heat exchanger (1) and an outlet adapter (2), wherein the snowflake-imitated topological microchannel heat exchanger (1) is provided with an inlet (4) and six outlets (5), a channel (3) is provided with one port communicated with the inlet (4) and six ports communicated with the outlets (5), the inlet (4) and the six outlets (5) are communicated through the channel (3), and a closed independent space for connecting the inlet (4) and the six outlets (5) is formed; the six outlet adapters (2) are respectively clamped at six outlets (5) of the snowflake-like topological microchannel heat exchanger (1).
The height of the channel (3) is 3mm, the upper wall thickness and the lower wall thickness are respectively 1.5mm, and the height of the heat exchanger 1 is 6 mm.
The snowflake-imitated topological micro-channel heat exchanger (1) and the outlet adapter (2) form a snowflake shape with 6 pieces.
The inlet (4) is positioned at the center of the whole heat exchanger (1), and the six outlets (5) are distributed at six corners of the snowflake topology-imitated micro-channel heat exchanger (1).
Every export adapter (2) all is equipped with a pipe (8) and a collection groove (7) respectively, collection groove (7) one side and the inside intercommunication of pipe (8), the opposite side is linked together with export (5) after export adapter (2) and imitative snowflake topology microchannel heat exchanger (1) assemble.
A performance detection device for a snowflake-like topological microchannel heat exchanger is characterized in that: the device comprises a peristaltic pump (10), a liquid supply tank (11), a liquid cooling tank (13), a flow combiner (15), a processing controller (14) and a snowflake-like topological microchannel heat exchanger, wherein six outlets of the snowflake-like topological microchannel heat exchanger are communicated with an inlet pipeline of the liquid cooling tank (13) through the flow combiner (15), a temperature sensor of the processing controller (14) is distributed in a channel of the snowflake-like topological microchannel heat exchanger, an outlet end of the peristaltic pump (10) is communicated with an inlet of the snowflake-like topological microchannel heat exchanger, and an inlet end of the peristaltic pump (10) is communicated with an outlet end of the liquid supply tank (11); the liquid supply box (11) is connected with an outlet of the junction station (15) through a liquid cooling box (13), the processing controller (14) is electrically connected with temperature sensors distributed in a channel of the snowflake-imitating topological microchannel heat exchanger and electrically connected with the peristaltic pump (10), the liquid supply box (11) and the liquid cooling box (13), liquid in the liquid supply box (11) enters the channel of the snowflake-imitating topological microchannel heat exchanger by controlling the peristaltic pump (10), heat exchange is carried out in the channel of the snowflake-imitating topological microchannel heat exchanger, and the liquid is cooled through the outlet of the junction station (15) to the liquid cooling box (13).
A performance detection device for a snowflake-like topological microchannel heat exchanger is characterized in that: further comprising: the heat source (18) and the direct current power supply (16) are used for supplying power to the heat source (18), the heat source (18) is arranged on the bottom surface of the snowflake topology-imitated microchannel heat exchanger (1), the processing controller (14) is respectively connected with an inlet (4), an outlet (5), the bottom surface of the heat exchanger, a liquid supply box (11) and a liquid cooling box (13) of the snowflake topology-imitated microchannel heat exchanger, the pressure gauge (17) is respectively connected with the inlet (4) and the outlet (5) of the snowflake topology-imitated microchannel heat exchanger (1), the heat source (18) is composed of a plurality of film resistors, and insulating materials are wrapped on the surfaces of the heat source (18) except the surface in contact with the snowflake topology-imitated microchannel heat exchanger.
Preferably, the device further comprises a check valve, wherein the check valve comprises a first check valve (9) and a second check valve (12), wherein the first check valve (9) is arranged between the peristaltic pump (10) and the inlet of the snowflake topology micro-channel heat exchanger, and the second check valve (12) is arranged between the liquid cooling tank (13) and the liquid supply tank (11).
The flow collector (15) comprises an inlet pipe (19) and an outlet pipe (20), wherein the inlet pipe (19) and the outlet pipe (20) are communicated with each other, the number of the inlet pipe (19) is six, the number of the outlet pipe (20) is one, the six inlet pipes (19) are respectively connected with a round pipe (8) of an outlet adapter (2) matched with the snowflake topology microchannel heat exchanger, and one of the outlet pipes (20) is connected with a liquid cooling box (13) through a pipeline.
Cooling liquid in a liquid supply tank (11) flows into the snowflake-simulated topological microchannel heat exchanger (1) with a heat source through a first check valve (9) under the driving of a peristaltic pump (10) through an inlet (4), liquid at six outlets flows out of a test area to the liquid cooling tank through a flow combiner (15), and if a second check valve (12) is opened, the cooling liquid can flow from the liquid cooling tank (13) to the liquid supply tank (11) to realize circulation; in the process, the electric heating device is started to adjust the loaded heat flow density to a required value, after the pressure gauge (17) and the processing controller (14) are stabilized, each temperature value and each pressure value can be read, the temperature of the cooling liquid can be increased after the cooling liquid passes through the snowflake-like topological microchannel heat exchanger (1) loaded with the heat source, in order to ensure that the temperature of the cooling liquid is reduced to the inlet temperature, the fluid channel fluid cooling tank (13) is used for measuring the temperature of the liquid in the fluid cooling tank (13), and when the temperature of the cooling liquid is reduced to the inlet temperature, the second check valve (12) is started, so that the cooling liquid in the fluid cooling tank (13) flows into the liquid supply tank (11).
Compared with the prior art, the invention has the advantages that:
(1) the snowflake-simulated topological microchannel heat exchanger is manufactured by 3D printing, the shape of an internal channel is like a snowflake shape, the channel is provided with an inlet and six outlets, and a fluid flow track is from the center of the heat exchanger to the edge of the heat exchanger. The arrangement of the inlet and the outlet of the channel and the distribution condition of the channel can improve the heat exchange performance of the heat exchanger and obviously reduce the temperature at the center of the heat exchanger, the heat dissipation efficiency is higher, the heat dissipation requirement of high-load electronic devices can be met, and a reliable temperature environment is provided for the electronic devices;
(2) the fluid flow heat exchange performance detection device comprises a peristaltic pump, a liquid cooling box, a liquid supply box and a test area, wherein the test area comprises a snowflake-like topological micro-channel heat exchanger;
(3) the snowflake-like topological microchannel heat exchanger and the fluid flow heat exchange performance detection device have the advantages of simple structure, convenience in operation and low cost, and greatly improve the working efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a snowflake-like topological microchannel heat exchanger according to the invention;
FIG. 2 is a schematic diagram of the internal three-dimensional structure of the heat exchanger of the present invention;
FIG. 3 is a schematic structural diagram of an outlet adapter according to the present invention;
FIG. 4 is a schematic view of the connection of the fluid flow heat exchange performance testing apparatus of the present invention;
fig. 5 is a schematic structural diagram of the junction station of the present invention.
Description of reference numerals:
the device comprises a 1-snowflake-imitating topological micro-channel heat exchanger, a 2-outlet adapter, a 3-channel, a 4-inlet, a 5-outlet, a 6-pressure meter connector, a 7-flow collecting groove, an 8-round pipe, a 9-first flow stopping valve, a 10-peristaltic pump, a 11-liquid supply box, a 12-second flow stopping valve, a 13-liquid cooling box, a 14-processing controller, a 15-flow collecting device, a 16-direct current power supply, a 17-pressure meter, an 18-heat source, a 19-water inlet pipe and a 20-water outlet pipe.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same, are intended to fall within the scope of the present disclosure.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
As shown in fig. 1-2, the snowflake-like topology microchannel heat exchanger comprises a snowflake-like topology microchannel heat exchanger 1 and an outlet adapter 2, wherein the snowflake-like topology microchannel heat exchanger 1 is provided with an inlet 4 and six outlets 5, the channel 3 is provided with a port communicated with the inlet 4 and six ports communicated with the outlets 5, and the inlet 4 and the six outlets 5 are communicated through the channel 3 to form a closed independent space for connecting the inlet 4 and the six outlets 5; the six outlet adapters 2 are respectively clamped at six outlets 5 of the snowflake-like topological microchannel heat exchanger 1.
The height of the channel 3 is 3mm, the upper wall thickness and the lower wall thickness are respectively 1.5mm, and the height of the snowflake-like topological micro-channel heat exchanger 1 is 6 mm.
The heat exchanger 1 and the outlet adapter 2 form 6 snowflake shapes.
Example 2
As shown in fig. 1-2, the invention discloses a snowflake topology-imitated microchannel heat exchanger, which comprises a snowflake topology-imitated microchannel heat exchanger 1 and an outlet adapter 2, wherein the snowflake topology-imitated microchannel heat exchanger 1 is provided with an inlet 4 and six outlets 5, a channel 3 is provided with a port communicated with the inlet 4 and six ports communicated with the outlets 5, and the inlet 4 and the six outlets 5 are communicated through the channel 3 to form a closed independent space for connecting the inlet 4 and the six outlets 5; the six outlet adapters 2 are respectively clamped at six outlets 5 of the snowflake-like topological microchannel heat exchanger 1.
The height of the channel 3 is 3mm, the upper wall thickness and the lower wall thickness are respectively 1.5mm, and the height of the snowflake-like topological micro-channel heat exchanger 1 is 6 mm.
As shown in fig. 2, preferably, the one inlet 4 is located at the center of the whole snowflake topology microchannel heat exchanger 1, and the six outlets 5 are distributed at six corners of the snowflake topology microchannel heat exchanger 1.
Example 3
As shown in fig. 1-2, the invention discloses a snowflake topology-imitated microchannel heat exchanger, which comprises a snowflake topology-imitated microchannel heat exchanger 1 and an outlet adapter 2, wherein the snowflake topology-imitated microchannel heat exchanger 1 is provided with an inlet 4 and six outlets 5, a channel 3 is provided with a port communicated with the inlet 4 and six ports communicated with the outlets 5, and the inlet 4 and the six outlets 5 are communicated through the channel 3 to form a closed independent space for connecting the inlet 4 and the six outlets 5; the six outlet adapters 2 are respectively clamped at six outlets 5 of the snowflake-like topological microchannel heat exchanger 1.
The height of the channel 3 is 3mm, the upper wall thickness and the lower wall thickness are respectively 1.5mm, and the height of the snowflake-like topological micro-channel heat exchanger 1 is 6 mm.
The snowflake-like topological microchannel heat exchanger 1 and the outlet adapter 2 form 6 snowflake shapes.
As shown in fig. 2, preferably, the one inlet 4 is located at the center of the whole snowflake topology microchannel heat exchanger 1, and the six outlets 5 are distributed at six corners of the snowflake topology microchannel heat exchanger 1.
As shown in fig. 3, preferably, each outlet adapter 2 is provided with a round tube 8 and a flow collecting groove 7, one side of the flow collecting groove 7 is communicated with the inside of the round tube 8, and the other side of the flow collecting groove 7 is communicated with the outlet 5 after the outlet adapter 2 is assembled with the snowflake-imitating topological microchannel heat exchanger 1. And a pressure gauge connecting hole 6 is also formed in one side of the outlet adapter 2.
Example 4
As shown in fig. 1-2, the invention discloses a snowflake-like topological microchannel heat exchanger, which comprises a snowflake-like topological microchannel heat exchanger 1 and an outlet adapter 2, wherein the heat exchanger 1 is provided with an inlet 4 and six outlets 5, the channel 3 is provided with a port communicated with the inlet 4 and six ports communicated with the outlets 5, and the inlet 4 and the six outlets 5 are communicated through the channel 3 to form a closed independent space for connecting the inlet 4 and the six outlets 5; the six outlet adapters 2 are respectively clamped at six outlets 5 of the heat exchanger 1.
The height of the channel 3 is 3mm, the upper and lower wall thickness is 1.5mm respectively, and the height of the heat exchanger 1 is 6 mm.
The heat exchanger 1 and the outlet adapter 2 form 6 snowflake shapes.
As shown in fig. 2, preferably, the one inlet 4 is located at the center of the entire heat exchanger 1, and six outlets 5 are distributed at six corners of the heat exchanger 1.
As shown in fig. 3, each outlet connection piece 2 is preferably provided with a round tube 8 and a collecting channel 7, wherein one side of the collecting channel 7 is connected to the inside of the round tube 8, and the other side is connected to the outlet 5 after the outlet connection piece 2 is assembled with the heat exchanger 1. And a pressure gauge connecting hole 6 is also formed in one side of the outlet adapter 2.
As shown in fig. 4, preferably, the fluid flow heat exchange performance testing device for testing the snowflake topology-like microchannel heat exchanger comprises a peristaltic pump 10, a liquid supply tank 11, a liquid cooling tank 13 and a testing area, wherein the testing area comprises the snowflake topology-like microchannel heat exchanger 1, the peristaltic pump 10 is connected between the liquid supply tank 11 and the testing area, the other end of the testing area is connected with the liquid cooling tank 13 through a pipeline connection, and the other end of the liquid cooling tank 13 is connected with the liquid supply tank 11 through a pipeline connection.
As shown in fig. 4, it is preferred to further comprise a stop valve, wherein the stop valve comprises a first stop valve 9 and a second stop valve 12, wherein the first stop valve 9 is arranged between the peristaltic pump 10 and the test zone, wherein the second stop valve 12 is arranged between the liquid cooling tank 13 and the liquid supply tank 11.
As shown in fig. 4, the test section preferably further includes a process controller 14, a pressure gauge 17, an electric heating device and a junction station 15, wherein the inlet 4 of the snowflake-like topological microchannel heat exchanger 1 is connected with a peristaltic pump 10 through a pipeline, the other end of the snowflake-like topological microchannel heat exchanger 1 is connected with a confluence device 15 through a pipeline, the other end of the junction station 15 is connected with the liquid cooling tank 13 through a pipeline, the electric heating device comprises a direct current power supply 16 and a heat source 18, wherein the heat source 18 is connected with the direct current power supply 16, the heat source 18 is arranged on the bottom surface of the snowflake topology-like microchannel heat exchanger 1, the processing controller 14 is respectively connected with the inlet end 4, the outlet end 5 and the bottom surface of the snowflake topology-imitated microchannel heat exchanger 1, the liquid supply tank 11 and the liquid cooling tank 13, the pressure gauges 17 are respectively connected with the inlet end 4 and the outlet end 5 of the snowflake-like topological microchannel heat exchanger 1.
Example 5
As shown in fig. 1-2, the invention discloses a snowflake-like topological microchannel heat exchanger, which comprises a heat exchanger 1 and an outlet adapter 2, wherein the heat exchanger 1 is provided with an inlet 4 and six outlets 5, a channel 3 is provided with a port communicated with the inlet 4 and six ports communicated with the outlets 5, and the inlet 4 and the six outlets 5 are communicated through the channel 3 to form a closed independent space for connecting the inlet 4 and the six outlets 5; the six outlet adapters 2 are respectively clamped at six outlets 5 of the heat exchanger 1. The height of the channel 3 is 3mm, the upper and lower wall thickness is 1.5mm respectively, and the height of the heat exchanger 1 is 6 mm.
The heat exchanger 1 and the outlet adapter 2 form 6 snowflake shapes.
As shown in fig. 2, preferably, the one inlet 4 is located at the center of the entire heat exchanger 1, and six outlets 5 are distributed at six corners of the heat exchanger 1.
As shown in fig. 3, each outlet connection piece 2 is preferably provided with a round tube 8 and a collecting channel 7, wherein one side of the collecting channel 7 is connected to the inside of the round tube 8, and the other side is connected to the outlet 5 after the outlet connection piece 2 is assembled with the heat exchanger 1. And a pressure gauge connecting hole 6 is also formed in one side of the outlet adapter 2.
As shown in fig. 4, a performance detection device for a snowflake-simulated topological microchannel heat exchanger comprises a peristaltic pump 10, a liquid supply tank 11, a liquid cooling tank 13, a flow combiner 15, a processing controller 14 and the snowflake-simulated topological microchannel heat exchanger, wherein six outlets of the snowflake-simulated topological microchannel heat exchanger are communicated with an inlet pipeline of the liquid cooling tank 13 through the flow combiner 15, temperature sensors of the processing controller 14 are distributed in a channel of the snowflake-simulated topological microchannel heat exchanger, an outlet end of the peristaltic pump 10 is communicated with an inlet of the snowflake-simulated topological microchannel heat exchanger, and an inlet end of the peristaltic pump 10 is communicated with an outlet end of the liquid supply tank 11; the liquid supply box 11 is connected with an outlet of the flow combiner 15 through the liquid cooling box 13, the processing controller 14 is electrically connected with temperature sensors distributed in a channel of the snowflake-imitating topological microchannel heat exchanger and electrically connected with the peristaltic pump 10, the liquid supply box 11 and the liquid cooling box 13, liquid in the liquid supply box 11 enters the channel of the snowflake-imitating topological microchannel heat exchanger by controlling the peristaltic pump 10, heat exchange is carried out in the channel of the snowflake-imitating topological microchannel heat exchanger, and the liquid is cooled from the outlet of the flow combiner 15 to the liquid cooling box 13.
A performance detection device for imitating a snowflake topology microchannel heat exchanger further comprises: the heat source 18 and the direct current power supply 16 are used for supplying power to the heat source 18, the heat source 18 is arranged on the bottom surface of the snowflake topology-like microchannel heat exchanger 1, the processing controller 14 is respectively connected with an inlet 4, an outlet 5, the bottom surface of the heat exchanger, a liquid supply tank 11 and a liquid cooling tank 13 of the snowflake topology-like microchannel heat exchanger, and the pressure gauge 17 is respectively connected with the inlet 4 and the outlet 5 of the snowflake topology-like microchannel heat exchanger 1.
As shown in fig. 4, preferably, the heat exchanger further comprises a check valve, wherein the check valve comprises a first check valve 9 and a second check valve 12, wherein the first check valve 9 is arranged between the peristaltic pump 10 and the inlet of the snowflake topology micro-channel heat exchanger, and the second check valve 12 is arranged between the liquid cooling tank 13 and the liquid supply tank 11.
As shown in fig. 5, the junction station 15 includes a water inlet pipe 19 and a water outlet pipe 20, wherein the water inlet pipe 19 is communicated with the water outlet pipe 20, the number of the water inlet pipes 19 is six, the number of the water outlet pipes 20 is one, the six water inlet pipes 19 are respectively connected with the circular pipe 8 of the outlet adapter 2 matched with the snowflake topology-like microchannel heat exchanger, and one of the water outlet pipes 20 is connected with the liquid cooling tank 13 through a pipeline.
Preferably, the heat source 18 is composed of a plurality of thin film resistors, wherein the heat source 18 is coated with an insulating material on each surface except the surface contacting the snowflake topology microchannel heat exchanger.
The working principle of the invention is as follows: the cooling liquid passes through the snowflake-simulated topological microchannel heat exchanger loaded with the heat source 18, the temperature of the cooling liquid is increased, the cooling liquid is introduced into the liquid cooling box 13 to be cooled to the inlet temperature, and then the cooling liquid flows into the liquid supply box 11 through the second check valve 12.
The cooling liquid in the liquid supply tank flows through a first stop valve 9 under the drive of a peristaltic pump 10 and flows into a snowflake-like topological micro-channel heat exchanger 1 with a heat source through an inlet 4, the liquid at six outlets flows out of a test area through a flow combiner 15 and flows into the liquid cooling tank, and if a second stop valve 12 is opened, the cooling liquid can flow from a liquid cooling tank 13 to a liquid supply tank 11 to realize circulation; in the process, the electric heating device is started to adjust the loaded heat flux density to a required value, after the pressure gauge 17 and the process controller 14 are stabilized, various temperature values and pressure values can be read, the temperature of the cooling liquid can be increased after the cooling liquid passes through the snowflake-like topological microchannel heat exchanger 1 loaded with the heat source, in order to ensure that the temperature of the cooling liquid is reduced to the inlet temperature, the fluid channel fluid cooling tank 13 is made to measure the temperature of the liquid in the fluid cooling tank 13, and after the temperature of the cooling liquid is reduced to the inlet temperature, the second check valve 12 is started to make the cooling liquid in the fluid cooling tank 13 flow into the liquid supply tank 11.
According to the invention, a heat source 18 is adopted for uniform heating, a film resistor is used for measuring the temperatures of an inlet and an outlet of the snowflake topology-like microchannel heat exchanger and the temperature of a heating surface of the snowflake topology-like microchannel heat exchanger, the convection heat transfer coefficient of the snowflake topology-like microchannel heat exchanger 1 can be calculated according to the heat flow density provided by the heat source, the average temperature of a fluid inlet and a fluid outlet and the temperature of the heating surface of the snowflake topology-like microchannel heat exchanger, and the pressure at two ends of a test section is measured by a pressure gauge to obtain the flow resistance parameter of the snowflake topology-like microchannel heat exchanger 1.
The bottom surface of the snowflake topology-like microchannel heat exchanger is loaded with a heat source, the required heat flow density is provided for the snowflake topology-like microchannel heat exchanger, the heat source consists of a plurality of thin film resistors, heat is transferred to a heating surface of the microchannel through heat-conducting silica gel, the heat flow density can be controlled by the number of the thin film resistors on one hand and can be controlled by adjusting current on the other hand, and in order to reduce heat loss, the surfaces of the heat source, except the surface in contact with the snowflake topology-like microchannel heat exchanger, are wrapped with a layer of insulating material.
The process controller needs to measure the temperature of 5 sections: the temperature of the cooling liquid at the inlet of the snowflake topology-like microchannel heat exchanger, the temperature of the cooling liquid at the outlet of the snowflake topology-like microchannel heat exchanger, the temperature of the heating surface of the snowflake topology-like microchannel heat exchanger, the temperature of the cooling liquid in the liquid cooling tank and the temperature in the liquid supply tank are tested by adopting thermocouples, all the thermocouples are connected to the processing controller, and the temperature values of all points can be displayed on the processing controller. The temperature of the heating surface of the snowflake topology-like microchannel heat exchanger is measured by adopting four thermocouples.
The arrangement of the inlet and the outlet of the channel and the distribution condition of the channel can improve the heat exchange performance of the heat exchanger and obviously reduce the temperature at the center of the heat exchanger, the heat dissipation efficiency is higher, the heat dissipation requirement of a high-load electronic chip can be met, and a reliable temperature environment is provided for electronic devices.
The fluid flow heat exchange performance detection device comprises a peristaltic pump, a liquid cooling box, a liquid supply box and a test area, wherein the test area comprises a snowflake-like topological micro-channel heat exchanger, the peristaltic pump is connected between the liquid supply box and the test area, the other end of the test area is connected with the liquid cooling box through a pipeline, the other end of the liquid cooling box is connected with the liquid supply box through a pipeline, the test area further comprises a processing controller, a pressure gauge, an electric heating device and a junction station, and the fluid flow heat exchange performance detection device can rapidly detect the heat exchange effect of the heat exchanger; the snowflake-like topological microchannel heat exchanger and the fluid flow heat exchange performance detection device have the advantages of simple structure, convenience in operation and low cost, and greatly improve the working efficiency.
Claims (7)
1. A performance detection device for a snowflake-like topological microchannel heat exchanger is characterized in that: the device comprises a peristaltic pump (10), a liquid supply tank (11), a liquid cooling tank (13), a flow combiner (15), a processing controller (14) and a snowflake-like topological microchannel heat exchanger, wherein six outlets of the snowflake-like topological microchannel heat exchanger are communicated with an inlet pipeline of the liquid cooling tank (13) through the flow combiner (15), a temperature sensor of the processing controller (14) is distributed in a channel of the snowflake-like topological microchannel heat exchanger, an outlet end of the peristaltic pump (10) is communicated with an inlet of the snowflake-like topological microchannel heat exchanger, and an inlet end of the peristaltic pump (10) is communicated with an outlet end of the liquid supply tank (11); the liquid supply box (11) is connected with an outlet of the flow combiner (15) through a liquid cooling box (13), the processing controller (14) is electrically connected with temperature sensors distributed in channels of the snowflake-imitating topological microchannel heat exchanger and electrically connected with the peristaltic pump (10), the liquid supply box (11) and the liquid cooling box (13), liquid in the liquid supply box (11) enters the channels of the snowflake-imitating topological microchannel heat exchanger by controlling the peristaltic pump (10), heat exchange is carried out in the channels of the snowflake-imitating topological microchannel heat exchanger, and the liquid is cooled from an outlet of the flow combiner (15) to the liquid cooling box (13);
the snowflake-imitated topological microchannel heat exchanger comprises a snowflake-imitated topological microchannel heat exchanger (1) and an outlet adapter (2), wherein the snowflake-imitated topological microchannel heat exchanger (1) is provided with an inlet (4) and six outlets (5), a channel (3) is provided with a port communicated with the inlet (4) and six ports communicated with the outlets (5), the inlet (4) and the six outlets (5) are communicated through the channel (3) to form a closed independent space for connecting the inlet (4) and the six outlets (5); the six outlet adapters (2) are respectively clamped at six outlets (5) of the snowflake-like topological microchannel heat exchanger (1).
2. The performance detection device for the snowflake-like topological microchannel heat exchanger as claimed in claim 1, wherein: the height of the channel (3) is 3mm, the upper wall thickness and the lower wall thickness are respectively 1.5mm, and the height of the heat exchanger 1 is 6 mm.
3. The performance detection device for the snowflake-like topological microchannel heat exchanger as claimed in claim 1, wherein: the snowflake-imitated topological micro-channel heat exchanger (1) and the outlet adapter (2) form a snowflake shape with 6 pieces.
4. The performance detection device for the snowflake-like topological microchannel heat exchanger as claimed in claim 1, wherein: the inlet (4) is positioned at the center of the whole heat exchanger (1), and the six outlets (5) are distributed at six corners of the snowflake topology-imitated micro-channel heat exchanger (1).
5. The performance detection device for the snowflake-like topological microchannel heat exchanger as claimed in claim 1, wherein: every export adapter (2) all is equipped with a pipe (8) and a collection groove (7) respectively, collection groove (7) one side and the inside intercommunication of pipe (8), the opposite side is linked together with export (5) after export adapter (2) and imitative snowflake topology microchannel heat exchanger (1) assemble.
6. The performance detection device for the snowflake-like topological microchannel heat exchanger as claimed in claim 1, wherein: the snow flake topology-imitated micro-channel heat exchanger further comprises a check valve, wherein the check valve comprises a first check valve (9) and a second check valve (12), the first check valve (9) is arranged between the peristaltic pump (10) and an inlet of the snow flake topology-imitated micro-channel heat exchanger, and the second check valve (12) is arranged between the liquid cooling tank (13) and the liquid supply tank (11).
7. The performance detection device for the snowflake-like topological microchannel heat exchanger as claimed in claim 1, wherein: the flow collector (15) comprises an inlet pipe (19) and an outlet pipe (20), wherein the inlet pipe (19) and the outlet pipe (20) are communicated with each other, the number of the inlet pipe (19) is six, the number of the outlet pipe (20) is one, the six inlet pipes (19) are respectively connected with a round pipe (8) of an outlet adapter (2) matched with the snowflake topology microchannel heat exchanger, and one of the outlet pipes (20) is connected with a liquid cooling box (13) through a pipeline.
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