CN101482527A - Integrated measurement device and method for heat pipe performance - Google Patents
Integrated measurement device and method for heat pipe performance Download PDFInfo
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- CN101482527A CN101482527A CNA2009100368972A CN200910036897A CN101482527A CN 101482527 A CN101482527 A CN 101482527A CN A2009100368972 A CNA2009100368972 A CN A2009100368972A CN 200910036897 A CN200910036897 A CN 200910036897A CN 101482527 A CN101482527 A CN 101482527A
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Abstract
The invention discloses a heat-pipe performance comprehensive measurement device and method. One end of the heat-pipe(5) to be measured is mounted on a heating device(3), another end of the heat-pipe is mounted on a cooling device (7); two rotary sliding devices (2) capable of rotating and linearly sliding on the plane surface of a work platform (1) are mounted on the work platform (1), and the work platform (1) is mounted on the bracket (10) capable of rotating on the vertical plane; a temperature measurement instrument is respectively connected with the heating device (3) and the cooling device (7). The two ends of the heat-pipe are clipped on the heating device and the cooling device and the heating and cooling power is adjusted and the starting time, isothermal performance, maximum heat-transmission power and heat resistance of the heat-pipe is measured by the temperature measurement instrument; and the performance of the heat-pipe to be measured of various bending angle and length is measured by adjusting the rotary sliding device; and the performance of the heat-pipe to be measured at different inclination angle is measured by adjusting the work platform.
Description
Technical field
The present invention relates to the adopting heat pipes for heat transfer Performance Detection, relate in particular to a kind of integrated measurement device and method that can measure start-up time, maximal heat transfer power and the isothermal performance of different length, angle of bend and angle of inclination heat pipe quickly and accurately.
Background technology
Heat pipe is as a kind of high-performance heat transfer components, characteristics such as efficient with it, compact and dexterous reliable, it is since the sixties come out, influence in the heat transfer technology field is increasing, all is widely used at temperature control, electrical equipment and the electronic equipment of spacecraft and the aspects such as cooling, constant-temperature oven, standard black matrix, sun power utilization and industrial afterheat recovery of device.
For the reliability that guarantees heat pipe when operation and give full play to its heat transfer property, test at the performance parameter of heat pipe before using and just become particularly important.The performance parameter of heat pipe comprises the heat pipe two ends temperature difference, start-up time, maximum pass on Gong rate and thermal resistance etc.Measuring the parameters such as maximal heat transfer power of heat pipe quickly and accurately and select suitable heat pipe in view of the above, is one of precondition that guarantees heat pipe and the normal heat radiation of electronic component.Along with improving constantly of scientific and technological level, heat pipe research and the field of using also will constantly be widened.And the properties of hot pipe measurement equipment must be accurate more, quick, convenient, and dissimilar heat pipes is had higher compatibility.
Existing properties of hot pipe measurement equipment is more both at home and abroad.As start-up time measuring equipment, isothermal device for measuring properties, maximal heat transfer power and thermal resistance measuring equipment etc.; The measuring equipment and the device of measurement heat pipe in performance under the different inclination angle (performance under the gravity effect) that design for curved hot pipe are specially also arranged.Yet, still lack the measurement equipment that comprehensive test platform especially lacks simulation heat pipe every heat transfer property under weightlessness or microgravity duty (adjusting of heat pipe angle of inclination) at present.
Therefore, be necessary to provide a kind of integrated measurement device and method that can measure start-up time, maximal heat transfer power and the isothermal performance of different length, angle of bend and angle of inclination heat pipe quickly and accurately.
Summary of the invention
The objective of the invention is to be to overcome the shortcoming of prior art, a kind of integrated measurement device that can measure start-up time, maximal heat transfer power and the isothermal performance of different length, angle of bend and angle of inclination heat pipe quickly and accurately is provided.
Another object of the present invention is to provide a kind of comprehensive method for measurement that can measure start-up time, maximal heat transfer power and the isothermal performance of different length, angle of bend and angle of inclination heat pipe quickly and accurately.
The objective of the invention is to realize by following technical proposals:
A kind of heat-pipe performance comprehensive measurement device, this device comprises test platform, heating arrangement, cooling device, Water Tank with Temp.-controlled and temperature measurer; This test platform comprises rotation and carriage, workbench and support; Heating arrangement and cooling device are installed on the test platform; This Water Tank with Temp.-controlled links to each other with cooling device by water pipe; This temperature measurer is connected with cooling device with heating arrangement by the thermocouple temperature measurement end.
Described heating arrangement comprises clamp and drive unit, and this clamp includes two heat blocks, two heat insulating blocks, spring, pressing plate and guide piece, has heating unit and is provided with first passage on this two heat block, and this passage is used for clamping micro heat pipe one end to be measured; This drive unit is stepper motor and two-way screw pair.Be provided with travel switch in this side heat insulating block.
Described cooling device further includes clamp and drive unit, and this clamp is provided with little condensation piece, big condensation piece and guide piece, and this two condensations piece is provided with second channel, and this passage is used for the clamping micro heat pipe other end to be measured.
Described Water Tank with Temp.-controlled is provided with a water pump, and this water pump links to each other with big condensation piece by water pipe, be used to drive cooling water flow through the condensation piece to cool off micro heat pipe to be measured.
Described rotation and carriage are used to install heating arrangement and cooling device, can rotate on workbench and along linear slide, realize differently curved angle and length heat pipe are measured.
Described workbench can rotate along perpendicular, realizes the measurement to properties of hot pipe under the differing tilt angles situation.
The comprehensive method for measurement of a kind of properties of hot pipe, this method is: use heating unit heating heat block to 60 ℃～100 ℃, and keep this temperature-resistant, again with heat pipe one end clamping to be measured on the condensation piece, heating arrangement clamps the heat pipe other end to be measured then, simultaneously temperature measurer begins to gather heat pipe each point temperature data and picks up counting, and does 50%～90% start-up time of heat pipe when the colling end temperature reaches fire end temperature 50%～90% time institute elapsed time note, finishes the isothermal performance test simultaneously; Regulate heating unit power, can judge performance index such as the maximal heat transfer power of this heat pipe and thermal resistance by the temperature data of temperature measurer; Regulate the heat pipe that the position of sliding rotating apparatus on workbench can measure different length; The rotation angle of regulating sliding rotating apparatus can measure the heat pipe of differently curved angle; The adjusting workbench can measure the performance of heat pipe under differing tilt angles along the pitch angle of perpendicular.
Compare with art methods, the present invention has the following advantages:
(1) the present invention can realize the function of multiple legacy equipment by same device: can measure various angle of bend heat pipes; Can the heat pipe of different length be measured; Can opposite heat tube multiple performances such as start-up time, isothermal performance, maximal heat transfer power and thermal resistance measure.
(2) measurement of opposite heat tube of the present invention fast and accurately.
(3) apparatus of the present invention are simple in structure, easy to operate.
Description of drawings
Fig. 1 is the general structure synoptic diagram of apparatus of the present invention;
Fig. 2 is the heating arrangement structural representation;
Fig. 3 is the cooling device structural representation;
Fig. 4 is workbench and sliding rotating apparatus structural representation;
Fig. 5 is the supporting structure synoptic diagram;
Fig. 6 is heating arrangement, cooling device and test platform mounting structure synoptic diagram;
Fig. 7 is the work synoptic diagram of apparatus of the present invention when measuring curved hot pipe;
Fig. 8 is apparatus of the present invention synoptic diagram of working when inclined angle of table is 30 °.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, heat-pipe performance comprehensive measurement device comprises test platform, heating arrangement 3, cooling device 7, Water Tank with Temp.-controlled 8 and temperature measurer 6; This test platform comprises rotation and carriage 2, workbench 1 and support 10; Heating arrangement 3 and cooling device 7 are installed on respectively on rotation and the carriage 2, and micro heat pipe 5 one ends to be measured are installed in heating arrangement 3, and the other end is installed on the cooling device 7; Two rotations and carriage 2 are arranged on the workbench 1, and workbench 1 is installed on the support 10; Water Tank with Temp.-controlled links to each other with cooling device 7 by water pipe 9; Temperature measurer is connected with cooling device 7 with heating arrangement 3 respectively by thermopair 4, specifically is that the thermometric end of thermopair 4 is connected with cooling device 7 with heating arrangement 3 respectively.
As shown in Figure 2, heating arrangement 3 comprises clamp and drive unit, and this clamp includes two heat blocks 12, two heat insulating blocks 18, spring 1, pressing plate 14 and cylindrical slideway 17.Two heat insulating blocks 18 are made up of left side heat block and right side heat block, and two heat blocks 12 are made up of left side heat insulating block and right side heat insulating block, and two heat blocks 12 are separately positioned in two heat insulating blocks 18; First passage 11 is formed cylindrical cavity and by two heat insulating blocks 18, is used for clamping micro heat pipe 5 one ends to be measured by left side heat insulating block semicolumn cavity and right side heat insulating block semicolumn cavity; Pressing plate 14 and two heat insulating blocks 18 all are installed on the guide rail 17, and two heat insulating blocks 18 and pressing plate 14 threes can do linear reciprocation along this guide rail 17 and move; Pressing plate 14 is connected with spring 1 with screw 1 with left heat insulating block, and pressing plate 14 pressure are acted on the heat insulating block of left side by spring 1, clamps heat pipe, can prevent effectively that like this screw mandrel is stuck.This drive unit comprises stepper motor 16 and two-way screw pair 15.This two-way ball wire bar pair 15 is installed on the base, and links to each other with the right side heat insulating block with pressing plate; Stepper motor 16 drives screw pair 15 drive pressing plates 14 and right side heat insulating block two-way simultaneous clamps heat pipe 5 to be measured; Be provided with travel switch in the heat insulating block of right side, when two heat insulating blocks were closed, the trip switch was triggered, and temperature measurer 6 picks up counting and image data.
As shown in Figure 3, cooling device comprises little condensation piece 20, big condensation piece 21, spring 2 19, guide piece and small footprint 35, be provided with second channel 22 between little condensation piece 20 and the big condensation piece 21, this passage is formed cylindrical cavity by the right side semicolumn cavity of big condensation piece 21 and the left side semicolumn cavity of little condensation piece 20, is used for clamping micro heat pipe 5 other ends to be measured; Guide piece is two accurate small slide blocks 23, adopt IKO accurate miniature slide block B WU8-20, two accurate small slide blocks 23 evenly are installed on the small footprint 35, and little condensation piece 20 is installed on the accurate small slide block 23, and the bootable little condensation piece 20 of this slide block is done on small footprint 35 toward complex line and moved; This spring 2 19 is installed between the lug and little condensation piece of small footprint 35, is used to promote little condensation piece 20 and clamps heat pipe 5 to be measured.
Water Tank with Temp.-controlled 8 is provided with a water pump, and this water pump links to each other with big condensation piece 21 by water pipe 9, and this water pump drives cooling water flow through the condensation piece, to cool off micro heat pipe 5 to be measured.Temperature measurer 6 models are NI PCI-4351, it is a high-precision multi-path temperature acquisition instrument, comprise data collector and thermopair 4, the thermocouple temperature measurement end evenly is installed on heat block 12 and the big condensation piece 21 along tested heat pipe axial direction, and be close to heat pipe, thermopair 4 terminals connect data collector.
Shown in Fig. 4～8, test platform comprises that rotation and carriage 2, workbench 1 and support 10, two rotations and carriage 2 are respectively applied for installation heating arrangement 3 and cooling device 7.Rotation and carriage 2 comprise rotating disk 24, slide block 25, screw 2 27 and screw 3 28; Workbench 1 is provided with cylindrical guide pair 26 as guide piece, slide block 25 is installed on the cylindrical guide pair 26, make rotation and carriage 2 in workbench 1 upper edge linear slide, manual adjustments rotation and the position of carriage 2 on workbench 1 can realize the different length heat pipe is measured; Rotating disk 24 is connected with slide block 25 with bearing by turning axle, make rotating disk 24 on slide block 25, to rotate, thereby rotation and carriage 2 can be rotated on workbench 1 plane, realization is to the measurement of differently curved angle heat pipe, as shown in Figure 7, the anglec of rotation of manual adjustments rotation and carriage 2, make first passage and second channel axis angle equal heat pipe bending angle to be measured, manual adjustments rotation and carriage 2 can be installed on first passage and the second channel until heat pipe to be measured in the position of workbench again.This screw 2 27 passes front apron 36, is installed on the slide block, can compress front apron 36 during locking, but fails to touch the rotating disk root, and lock-screw 2 27 is locked at slide block on the front apron 36, locking rotation and the position of carriage 2 on workbench 1; Screw 3 28 passes front apron 36, is installed on the slide block, fails to compress front apron 36 during locking, but can touch the rotating disk root, so the anglec of rotation of lock-screw 3 28 lockable rotating disks.Support 10 is built by aluminium section bar 30, and includes one and be used to drive the drive unit of workbench 1 along the perpendicular rotation, and drive unit comprises decelerating step motor 29, is with 33 synchronously, synchronous pulley 1 and synchronous pulley 2 32; Decelerating step motor 29 is installed in support 10 bottoms, and synchronous pulley 1 is installed on this electric machine main shaft; As shown in Figure 8, synchronous pulley 2 32 is installed on workbench 1 turning axle, with workbench 1 fixed installation, and by being with 33 to link to each other with synchronous pulley 1 synchronously; This decelerating step motor 29 drives synchronous pulley 1 and rotates, by being with 33 to drive synchronous pulley 2 32 rotations synchronously, synchronous pulley 2 32 and workbench 1 one perpendicular that coexists rotates, make the inclination that is installed in the heat pipe generation different angles to be measured on the test platform, realize being operated in the measurement of properties of hot pipe under the differing tilt angles.
The method for measurement of using this heat-pipe performance comprehensive measurement device comprises the steps:
(1) connect the heating unit switch, heat block 12 is heated to 60 ℃～100 ℃, and insulation;
(2) disconnect Water Tank with Temp.-controlled 8 pump switch, make heat pipe 5 one ends to be measured put into second channel 22, with heat pipe 5 clampings to be measured at little condensation piece 20 with greatly between the condensation piece 21; Connect temperature measurer 6 power supplys, connect stepper motor 16 power supplys of heating arrangement 3, clamp heat pipe 5 other ends to be measured, temperature measurer 6 is gathered heat pipe 5 each point temperature datas to be measured and is picked up counting, be arranged on the cooling device the equal temperature note of two thermopairs institute lining and make the colling end temperature, be arranged on the heating arrangement the equal temperature note of two thermopairs institute lining and make the fire end temperature, the difference of colling end temperature and fire end temperature note is made the heat pipe two ends temperature difference, does 50%～90% start-up time of heat pipe when the colling end temperature reaches fire end temperature 50%～90% time institute elapsed time note; When measuring start-up time, when through 3s, 5s, 8s and 10s, respectively write down the heat pipe two ends temperature difference one time, be used to weigh heat pipe isothermal performance, finish the isothermal performance test.The isothermal performance is temperature the be consistent index of degree in two ends when weighing heat pipe work, represents with the two ends temperature difference and time corresponding.
(3) connect Water Tank with Temp.-controlled 8 pump switch, make chilled water begin circulation in big condensation piece 21; Increase heating unit power gradually, the heat pipe two ends temperature difference of heat pipe 5 to be measured under steady-working state also can increase gradually, the temperature data that records according to temperature measurer 6, when two ends, the stable back of the heat pipe to be measured temperature difference surpasses 3 degrees centigrade just, can calculate its heating power by electric current and the voltage of measuring heating unit, and note is made the maximal heat transfer power of this heat pipe 5 to be measured, the temperature difference at heat pipe thermal resistance=heating power to be measured/heat pipe two ends;
(4) regulate rotation and the position of carriage 2 on workbench 1, repeating step (1)～(3), the performances such as heat pipe start-up time, isothermal performance, maximal heat transfer power and thermal resistance of measurement different length;
(5) regulate the rotation angle of rotation and carriage 2, repeating step (1)～(3) can measure heat pipe start-up time, isothermal performance, maximal heat transfer power and the thermal resistance of differently curved angle;
(6) regulate the pitch angle of workbench 1 along perpendicular, heat pipe start-up time, isothermal performance, maximal heat transfer power and the thermal resistance of heat pipe under differing tilt angles measured in repeating step (1)～(3).
Claims (8)
1, a kind of heat-pipe performance comprehensive measurement device is characterized in that: comprise test platform, heating arrangement (3), cooling device (7), Water Tank with Temp.-controlled (8) and temperature measurer (6); Described test platform comprises rotation and carriage (2), workbench (1) and support (10); Heating arrangement (3) and cooling device (7) are installed on respectively on rotation and the carriage (2), and micro heat pipe (5) one ends to be measured are installed in heating arrangement (3), and the other end is installed on the cooling device (7); Two rotations and carriage (2) are arranged on the workbench (1), can do rotation and linear slide on workbench (1) plane, and workbench (1) is installed in can be on the support (10) of perpendicular rotation; Water Tank with Temp.-controlled is provided with a water pump in (8), and this water pump links to each other with cooling device (7) by water pipe (9); Temperature measurer is connected with cooling device (7) with heating arrangement (3) respectively by thermopair (4).
2, heat-pipe performance comprehensive measurement device according to claim 1, it is characterized in that described heating arrangement (3) comprises clamp and drive unit, described clamp includes two heat blocks (12), two heat insulating blocks (18), spring one (13), pressing plate (14) and cylindrical slideway pair (17); Two heat insulating blocks (18) are made up of left side heat block and right side heat block, and two heat blocks (12) are made up of left side heat insulating block and right side heat insulating block, and two heat blocks (12) are separately positioned in two heat insulating blocks (18); First passage (11) is formed cylindrical cavity and by two heat insulating blocks (18), is used for clamping micro heat pipe (5) one ends to be measured by left side heat insulating block semicolumn cavity and right side heat insulating block semicolumn cavity; Pressing plate (14) and two heat insulating blocks (18) all are installed on the guide rail (17); Pressing plate (14) is connected with spring one (13) with screw one (34) with left heat insulating block, and described drive unit comprises stepper motor (16) and two-way screw pair (15); Two-way ball wire bar pair (15) is installed on the base, and links to each other with the right side heat insulating block with pressing plate; Stepper motor (16) drives screw pair (15) drive pressing plate (14) and right side heat insulating block two-way simultaneous clamps heat pipe to be measured (5); In the heat insulating block of right side, be provided with travel switch.
3, heat-pipe performance comprehensive measurement device according to claim 1, it is characterized in that: described cooling device comprises little condensation piece (20), big condensation piece (21), spring two (19), guide piece and small footprint (35), be provided with second channel (22) between described little condensation piece (20) and the big condensation piece (21), this passage is formed cylindrical cavity by the right side semicolumn cavity of big condensation piece (21) and the left side semicolumn cavity of little condensation piece (20), is used for clamping micro heat pipe to be measured (5) other end; Guide piece is two accurate small slide blocks (23), two accurate small slide blocks (23) evenly are installed on the small footprint (35), little condensation piece (20) is installed on the accurate small slide block (23), and the bootable little condensation piece of this slide block (20) is done on small footprint (35) toward complex line and moved; This spring two (19) is installed between the lug and little condensation piece of small footprint (35), promotes little condensation piece (20) and clamps heat pipe to be measured (5).
4, heat-pipe performance comprehensive measurement device according to claim 1 is characterized in that: described rotation and carriage (2) comprise rotating disk (24) and slide block (25); Workbench (1) is provided with cylindrical guide pair (26) as guide piece, and slide block (25) is installed on the cylindrical guide pair (26), make the rotation and carriage (2) can be in workbench (1) upper edge linear slide; Rotating disk (24) is connected with slide block (25) with bearing by turning axle.
5, heat-pipe performance comprehensive measurement device according to claim 4 is characterized in that: described rotation and carriage (2) also comprise screw two (27) and screw three (28), and described screw two (27) passes front apron (36) and is installed on the slide block; Described screw three (28) passes front apron (36) and is installed on the slide block.
6, heat-pipe performance comprehensive measurement device according to claim 1, it is characterized in that described support (10) built by aluminium section bar (30), and include one and be used to drive the drive unit of workbench (1) along the perpendicular rotation, drive unit comprises decelerating step motor (29), band (33), synchronous pulley one (31) and synchronous pulley two (32) synchronously; Decelerating step motor (29) is installed in support (10) lower end, and synchronous pulley one (31) is installed on decelerating step motor (29) main shaft; Synchronous pulley two (32) is installed on workbench (1) turning axle, and fixedlys connected with workbench, and synchronous pulley two (32) links to each other with synchronous pulley one (31) by being with (33) synchronously.
7, heat-pipe performance comprehensive measurement device according to claim 1, it is characterized in that described temperature measurer is a multichannel temperature Acquisition Instrument, comprise data collector and thermopair (4), this thermocouple temperature measurement end evenly is installed on heating arrangement (3) and the cooling device (7) along tested heat pipe axial direction, and be close to heat pipe, thermopair (4) line end connects data collector.
8, the comprehensive method for measurement of a kind of properties of hot pipe is characterized in that: heat block (12) is heated to 60 ℃～100 ℃, and keeps temperature-resistant, with heat pipe (5) one end clampings to be measured on condensation piece (20,21); Use heat block (12) to clamp heat pipe to be measured (5) other end, simultaneously temperature measurer (6) begins to gather heat pipe to be measured (5) each point temperature data and picks up counting, and does 50%～90% start-up time of heat pipe when the colling end temperature reaches fire end temperature 50%～90% time institute elapsed time note; When measuring start-up time, when through 3s, 5s, 8s and 10s, respectively measure the heat pipe two ends temperature difference one time, be used to weigh heat pipe isothermal performance; Regulate heating unit power, and wait for that heat pipe to be measured (5) enters steady-working state, the temperature data that records according to temperature measurer (6) gets performance index such as the maximal heat transfer power of heat pipe to be measured (5) and thermal resistance;
Regulate two rotations and carriage (2) at interval, measure the performances such as start-up time, isothermal performance, maximal heat transfer power and thermal resistance of different length heat pipe at workbench (1); Regulate rotation and carriage (2) in workbench (1) the plane anglec of rotation, measure the performances such as start-up time, isothermal performance, maximal heat transfer power and thermal resistance of differently curved angle heat pipe; Regulate workbench (1) along the angle that perpendicular tilts, the performances such as start-up time, isothermal performance, maximal heat transfer power and thermal resistance of heat pipe under the differing tilt angles situation are measured; Regulate the angle that workbench (1) tilts along perpendicular, regulate two rotation and interval and the anglecs of rotation of carriage (2) on workbench (1) simultaneously, start-up time, isothermal performance, maximal heat transfer power and the thermal resistance of heat pipe under the differing tilt angles situation of different length, angle of bend measured.
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| CN2009100368972A CN101482527B (en) | 2009-01-22 | 2009-01-22 | Integrated measurement device and method for heat pipe performance |
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| CN2009100368972A CN101482527B (en) | 2009-01-22 | 2009-01-22 | Integrated measurement device and method for heat pipe performance |
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