CN1908640A - Device for measuring properties of hot pipe - Google Patents
Device for measuring properties of hot pipe Download PDFInfo
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- CN1908640A CN1908640A CN 200510036422 CN200510036422A CN1908640A CN 1908640 A CN1908640 A CN 1908640A CN 200510036422 CN200510036422 CN 200510036422 CN 200510036422 A CN200510036422 A CN 200510036422A CN 1908640 A CN1908640 A CN 1908640A
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- heat
- measuring properties
- pipe
- patchhole
- hot pipe
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Abstract
The detector for heat pipe performance comprises: a heater included a heating block with a first hole filled with heat-conductive liquid on one end, and a cooling device with a second hole opposite to the first one for the cooling end of target.
Description
[technical field]
The present invention relates to a kind of measuring equipment, relate in particular to a kind of device for measuring properties of hot pipe.
[background technology]
In recent years, electronic technology develops rapidly, and the high frequency of electron device, high speed and integrated circuit intensive and microminiaturized makes unit volume electron device thermal value increase severely.Characteristics such as hot pipe technique is efficient with it, compactness and flexibility and reliability are fit to solve the heat dissipation problem that current electron device is derived because of performance boost, become the main flow radiating mode of current electron device gradually.
Heat pipe is as a kind of heat transfer unit (HTU), and an amount of hydraulic fluid of splendid attire and low pressure seal in heat conductivility good metal housing are when utilizing hydraulic fluid to do to transform between gas-liquid two-phase in housing and absorb or the principle of emitting big calorimetric is carried out work.Hydraulic fluid is selected the fluent meterial that heat of vaporization height, good fluidity, chemical property are stable, boiling point is lower usually for use, as water, alcohol etc.When heat pipe one end contacts the absorption heat with thermal source, hydraulic fluid in it is subjected to thermal evaporation and absorbs a large amount of heats of vaporization, the other end that the gas that forms quickly diffuses to heat pipe cools off and emits heat, form liquid after the cooling once more and reflux along inner walls, the circulation heat that thermal source can be produced is passed to the other end and distributes from heat pipe one end and so forth.For quickening the return velocity of cooling back liquid, on inner walls, also be provided with capillary structures such as groove or silk screen usually, under the capillary absorption affinity effect of capillary structure, quicken the return velocity of cooling liquid greatly.Because it is fast that heat pipe has the hydraulic fluid rate of circulation, characteristics such as heat transfer efficiency height, so it obtains extensive and a large amount of application in the increasing electronic radiation field of thermal value.
For the operate as normal of guaranteeing heat pipe when utilization and give full play to its heat transfer property, test at the performance parameter of heat pipe before using and just become most important.The performance parameter of heat pipe comprises the heat pipe two ends temperature difference, heat pipe maximum heat biography amount and heat pipe internal thermal resistance etc., wherein, the maximum heat biography amount of heat pipe is to weigh one of adopting heat pipes for heat transfer performance parameter comparatively commonly used, and the factor that influences it comprises the structure of the selection of hydraulic fluid, capillary structure and the case material of heat pipe etc.The maximum heat biography amount of heat pipe is determining the maximum heat load that heat pipe can bear, and directly influence the occasion that this heat pipe can be suitable for, maximum heat load on applying to heat pipe is during greater than the maximum heat biography amount of heat pipe, will cause the hydraulic fluid excessive vaporization in the heat pipe, cause heat pipe to be in abnormal duty, until reducing heat pipe serviceable life even it being damaged.Therefore, accurately measure the maximum heat biography amount of heat pipe and select suitable heat pipe in view of the above, be the heat pipe operate as normal and guarantee one of precondition of the normal heat radiation of electron device.
At present, comparatively Chang Yong a kind of measuring equipment that measures heat pipe maximum heat biography amount comprises that the heating arrangement of artificial electronic device heating reaches the cooling device in order to the condensation heat pipe, wherein heating arrangement is located at heat pipe one end opposite heat tube and is heated, and cooling device is located at heat pipe other end opposite heat tube and is cooled off, thereby make heat pipe be in normal running status, all evaporate by heat to the hydraulic fluid in the heat pipe that adds that improves heating arrangement then, this moment heating arrangement add the maximum heat biography amount that heat is heat pipe.Yet, the heating arrangement of this heat-pipe measuring device is that direct rigidity contacts with heat pipe to be measured, contact and certainly exist fine gap between two surfaces, cause existing between this contact interface quite big thermal contact resistance, make that hot transfer efficiency was lower than its actual hot transfer efficiency when heat pipe was measured, thereby influence the accuracy and the reliability of this heat-pipe measuring device.
Therefore, be necessary to provide a kind of device for measuring properties of hot pipe with pin-point accuracy and reliability.
[summary of the invention]
Below, will a kind of device for measuring properties of hot pipe with pin-point accuracy and reliability be described with embodiment.
For realizing foregoing, a kind of device for measuring properties of hot pipe is provided, it comprises: a heating arrangement, this heating arrangement comprises a heat block, this heat block one end is provided with one first patchhole, is used to insert the heat absorbing end of heat pipe to be measured; And a cooling device, this cooling device is provided with one second patchhole, and this second patchhole is corresponding with first patchhole, is used to insert the colling end of heat pipe to be measured, wherein is filled with heat-conducting fluid in this first patchhole.
This heat block accommodates heating rod in being provided with at least one bottoming hole with the same end of first patchhole in this bottoming hole.
This heat block is provided with a filling orifice that is communicated with first patchhole.
This heat-conducting fluid comprises water or liquid nitrogen.
This device for measuring properties of hot pipe further comprises the packoff that seals this filling orifice and first patchhole respectively.
The sealing device comprises sealing rubber ring or clay.
This device for measuring properties of hot pipe further is being provided with thermometer or thermopair near heat pipe heat absorbing end to be measured and colling end place.
This device for measuring properties of hot pipe comprises that further one is arranged at the adiabatic apparatus between heating arrangement and the cooling device.
This adiabatic apparatus is provided with one and inserts passage, and it is corresponding with above-mentioned first, second patchhole that this inserts passage.
This cooling device adopts a medium chiller.
Refrigeration filling in this medium chiller adopts water or liquid nitrogen.
Compared with prior art, the device for measuring properties of hot pipe that the technical program provides is by being provided with heat-conducting fluid, can effectively reduce the interface thermal contact resistance between heating arrangement and heat pipe to be measured, improve the efficient that heat is transmitted, in addition, when heat pipe cross sectional shape to be measured is irregular, also can measure by same device for measuring properties of hot pipe, need not redesign new heat-pipe measuring device, reduce cost.Therefore, the device for measuring properties of hot pipe of the technical program is a kind of universal device for measuring properties of hot pipe with pin-point accuracy and reliability.
[description of drawings]
Fig. 1 is the solid assembling synoptic diagram of the first embodiment device for measuring properties of hot pipe.
Fig. 2 be the first embodiment device for measuring properties of hot pipe along Fig. 1 II-II directional profile synoptic diagram.
Fig. 3 is the diagrammatic cross-section of the second embodiment device for measuring properties of hot pipe.
[specific embodiment]
Below in conjunction with drawings and Examples device for measuring properties of hot pipe of the present invention is described in further detail.
See also Fig. 1 and Fig. 2, the technical program first embodiment provides a kind of device for measuring properties of hot pipe 10, and this device for measuring properties of hot pipe 10 comprises a heating arrangement 11 and a cooling device 12.This device for measuring properties of hot pipe 10 can be used for measuring the heat transfer property energy of heat pipe 13 to be measured.This heat pipe 13 to be measured can be a plate heat pipe, single tube type heat pipe or divergence type (loop-type) heat pipe, and the heat pipe to be measured 13 of present embodiment adopts a single tube type heat pipe.
This heating arrangement 11 comprises a METAL HEATING PROCESS piece 111 and at least one heating source 112, this heat block 111 can adopt cube or shape such as cylindrical, the one end is provided with one first patchhole 113, be used to insert the heat absorbing end of heat pipe 13 to be measured, an end identical with first patchhole 113 can further be provided with at least one bottoming hole 114, is used to insert heating source 112.The aperture of this first patchhole 113 is greater than the diameter of heat pipe 13 to be measured.When bottoming hole 114 when being a plurality of, these a plurality of bottoming holes 114 can be symmetrically distributed in the heat block 111, hold a heating source 112 in it respectively, and heating source 112 closely contacts mutually with the inwall of bottoming hole 114 simultaneously, with the heat transference efficiency of raising heating source 112.Present embodiment heat block 111 position above first patchhole 113 is provided with a filling orifice 115, be used for filling heat-conductive fluid 116, this heat-conducting fluid 116 can inject first patchhole 113 by filling orifice 115, fills up the gap of the heat pipe 13 to be measured and first patchhole 113, improves heat transference efficiency.Present embodiment heat-conducting fluid 116 optional water or liquid nitrogen.For preventing that heat-conducting fluid 116 from overflowing and prevent heat dissipation from first patchhole 113, can use packoff 117 respectively, 118 seal the opening and the filling orifice 115 of first patchhole 113 respectively, and present embodiment packoff 117,118 can adopt sealing rubber ring or clay.In addition, can be provided with thermometer or thermopair near the heat absorbing end position of heat pipe 13 to be measured in the present embodiment heating arrangement 11, be used to measure the temperature of the heat absorbing end of heat pipe 13 to be measured.
This cooling device 12 can adopt traditional medium cooling device, and it comprises second patchhole 121, is used to insert the colling end of heat pipe 13 to be measured.Circular flow is connected with refrigeration filling in this cooling device 12, with the colling end of continuous and effective ground cooling heat pipe 13 to be measured.Optional water of wherein said refrigeration filling or liquid nitrogen and the bigger heat eliminating medium of other thermal capacitance.In addition, be provided with thermometer or thermopair near the colling end position of heat pipe 13 to be measured in this cooling device 12, be used to measure the temperature of the colling end of heat pipe 13 to be measured.
Present embodiment device for measuring properties of hot pipe 10 can insert the heat absorbing end of heat pipe 13 to be measured first patchhole 113 of heating arrangement 11 earlier when using, and by packoff 117 sealing and fixing; Heating source 112 is positioned in the bottoming hole 114; Heat-conducting fluid 116 is injected in first patchhole 113 by filling orifice 115, and by packoff 118 sealings; The colling end of heat pipe 13 to be measured is inserted second patchhole 121 of cooling device 12.Heating source 112 is separated by a distance in heat pipe to be measured 13 in first patchhole 113 and the bottoming hole 114 at this moment, being convenient to heating source 112 treats calorimetric pipe 13 and evenly heats, progressively strengthen the heat that adds of heating source 112 in the heating process, each increase should keep a period of time to add heat operation (following identical) to reaching the increase of carrying out again next time after the thermal equilibrium after adding heat, near the temperature value T1 of the thermocouple assay heat pipe 13 to be measured reaches the vapourizing temperature (being assumed to be T0) of hydraulic fluid in the heat pipe, and start cooling device 12 and start working this moment; Then continue progressively to strengthen the heat that adds of heating source 112, and flow through chilled water round-robin discharge in the cooling device 12 by control and keep the numerical value of T1 to equal T0, and the numerical value of the noting T1 at any time situation that whether occurs obviously beating, when the numerical value of T1 occurs jumping, confirm that then the hydraulic fluid in the heat pipe 13 to be measured all evaporates, so this sudden temperature rise is put the maximum heat biography amount that heat is heat pipe 13 to be measured that adds of pairing heating source.
See also Fig. 3, the technical program second embodiment provides a kind of device for measuring properties of hot pipe 20, it comprises a heating arrangement 21 and a cooling device 22, and this heating arrangement 21 is identical with heating arrangement 11 among first embodiment, and this cooling device 22 is identical with cooling device 12 among first embodiment.With the first embodiment difference be, present embodiment comprises that further one is arranged at the adiabatic apparatus 23 between heating arrangement 21 and the cooling device 22, and this adiabatic apparatus 23 is provided with one and inserts passage 231, is used to hold the center section of heat pipe to be measured.This adiabatic apparatus 23 can encase the part of heat pipe to be measured between heating arrangement 21 and cooling device 22, and avoiding influences the measurement accuracy of heat device for measuring properties because the long heat of heat pipe to be measured sheds from the heat pipe middle part.
The device for measuring properties of hot pipe of the foregoing description is by being provided with heat-conducting fluid, can effectively reduce the interface thermal contact resistance between heating arrangement and heat pipe to be measured, improve the efficient that heat is transmitted, in addition, when heat pipe cross sectional shape to be measured is irregular, also can measure, need not redesign new heat-pipe measuring device, reduce cost by same device for measuring properties of hot pipe.Therefore, the device for measuring properties of hot pipe of the technical program is a kind of universal device for measuring properties of hot pipe with pin-point accuracy and reliability.
In addition, those skilled in the art can also do other variation in spirit of the present invention, certainly, the variation that these are done according to spirit of the present invention, all should be included in the present invention's scope required for protection in.
Claims (11)
1. device for measuring properties of hot pipe, it comprises: a heating arrangement, this heating arrangement comprises a heat block, this heat block one end is provided with one first patchhole, is used to insert the heat absorbing end of heat pipe to be measured; And a cooling device, this cooling device is provided with one second patchhole, and this second patchhole is corresponding with first patchhole, is used to insert the colling end of heat pipe to be measured, it is characterized in that: be filled with heat-conducting fluid in this first patchhole.
2. device for measuring properties of hot pipe as claimed in claim 1 is characterized in that this heat block in being provided with at least one bottoming hole with the same end of first patchhole, accommodates heating rod in this bottoming hole.
3. device for measuring properties of hot pipe as claimed in claim 1 is characterized in that this heat block is provided with a filling orifice that is communicated with first patchhole.
4. device for measuring properties of hot pipe as claimed in claim 3 is characterized in that this heat-conducting fluid comprises water or liquid nitrogen.
5. device for measuring properties of hot pipe as claimed in claim 3 is characterized in that further comprising the packoff that seals this filling orifice and first patchhole respectively.
6. device for measuring properties of hot pipe as claimed in claim 5 is characterized in that the sealing device comprises sealing rubber ring or clay.
7. device for measuring properties of hot pipe as claimed in claim 1 is characterized in that further being provided with thermometer or thermopair near heat pipe heat absorbing end to be measured and colling end place.
8. device for measuring properties of hot pipe as claimed in claim 1 is characterized in that further comprising that one is arranged at the adiabatic apparatus between heating arrangement and the cooling device.
9. device for measuring properties of hot pipe as claimed in claim 8 is characterized in that this adiabatic apparatus is provided with one and inserts passage, and it is corresponding with above-mentioned first, second patchhole that this inserts passage.
10. device for measuring properties of hot pipe as claimed in claim 1 is characterized in that this cooling device adopts a medium chiller.
11. device for measuring properties of hot pipe as claimed in claim 10 is characterized in that the refrigeration filling in this medium chiller adopts water or liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100364225A CN100445736C (en) | 2005-08-05 | 2005-08-05 | Device for measuring properties of hot pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100364225A CN100445736C (en) | 2005-08-05 | 2005-08-05 | Device for measuring properties of hot pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908640A true CN1908640A (en) | 2007-02-07 |
| CN100445736C CN100445736C (en) | 2008-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100364225A Expired - Fee Related CN100445736C (en) | 2005-08-05 | 2005-08-05 | Device for measuring properties of hot pipe |
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| Country | Link |
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| CN (1) | CN100445736C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954647A (en) * | 2014-05-05 | 2014-07-30 | 西安科技大学 | Performance test device of fire preventing and extinguishing hot rod for coal spontaneous combustion |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8819442D0 (en) * | 1988-08-16 | 1988-09-21 | Nat Nuclear Corp Ltd | Heat transfer measurement |
| JPH0814780A (en) * | 1994-06-24 | 1996-01-19 | Fujikura Ltd | Performance testing method for high temperature heat pipe |
| JPH08291983A (en) * | 1995-04-21 | 1996-11-05 | Furukawa Electric Co Ltd:The | Method and device for testing heat pipe on functioning |
| CN2694269Y (en) * | 2004-04-02 | 2005-04-20 | 鸿富锦精密工业（深圳）有限公司 | Heat pipe measuring device |
-
2005
- 2005-08-05 CN CNB2005100364225A patent/CN100445736C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954647A (en) * | 2014-05-05 | 2014-07-30 | 西安科技大学 | Performance test device of fire preventing and extinguishing hot rod for coal spontaneous combustion |
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| Publication number | Publication date |
|---|---|
| CN100445736C (en) | 2008-12-24 |
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