CN205049506U - Heat conductivity coefficient test device - Google Patents
Heat conductivity coefficient test device Download PDFInfo
- Publication number
- CN205049506U CN205049506U CN201520803958.4U CN201520803958U CN205049506U CN 205049506 U CN205049506 U CN 205049506U CN 201520803958 U CN201520803958 U CN 201520803958U CN 205049506 U CN205049506 U CN 205049506U
- Authority
- CN
- China
- Prior art keywords
- hot plate
- fixed cover
- cold drawing
- movable guard
- conductivity coefficient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model provides a heat conductivity coefficient test device, including the testboard, link firmly the fixed cover on the testboard, and set up the movable guard on the testboard via an actuating mechanism, still including fixing the cold drawing in fixed cover, and the hot plate of setting in the movable guard, be equipped with the cooling chamber on the cold drawing, be equipped with the heater on the hot plate, be equipped with the 2nd actuating mechanism who is connected with the hot plate transmission on the movable guard, all be equipped with temperature sensor on cold drawing and hot plate, be equipped with displacement sensor on the hot plate, be equipped with the support column of adjustable length on the cold drawing terminal surface. Heat conductivity coefficient test device, through the spliced pole that sets up adjustable length, can control the distance between hot plate and the cold drawing, also can confirm the displacement volume of hot plate according to the thickness of soft test piece to avoid the hot plate removal excessively to cause the test piece deformation and influence the accuracy of test result. In addition, through setting up air exhaust device, can further improve the accuracy nature of test result.
Description
Technical field
The utility model relates to Determination of conductive coefficients technical field, particularly a kind of test device of thermal conductivity coefficient.
Background technology
Coefficient of heat conductivity is one of main thermal of building materials, and method of testing conventional is at present steady state test method, comprises Guarded hot plate and heat flow meter method.Hot plate method of testing mainly contains a pair board-like clamping device, and for clamping test pieces, wherein one piece is provided with well heater, and another block is then provided with refrigeratory.When testing, after utilizing well heater to heat, measuring the temperature difference at test specimen two ends with temperature measurement device, then can calculate the heat-conducting system of test specimen according to temperature difference, specimen thickness value.Namely Chinese utility model patent CN201107284Y discloses a kind of test device of thermal conductivity coefficient, it improves automaticity compared to existing test device of thermal conductivity coefficient, directly can draw thermal conductivity value, but it is suitable for the Determination of conductive coefficients of the higher test specimen of hardness number, the test specimen softer for quality such as such as Polyurethane Thermal Insulation Building Materials is then not too suitable, therefore be necessary to make improvements, so that the Determination of conductive coefficients of soft test specimen can be suitable for.
Utility model content
In view of this, the utility model is intended to propose a kind of test device of thermal conductivity coefficient, overcoming the deficiencies in the prior art, can be suitable for the test of soft test specimen.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of test device of thermal conductivity coefficient, comprises test board, is fixed on the fixed cover on described test board, and be slidably arranged in the movable guard on test board via the first driving mechanism, and under the first driving mechanism drives, described movable guard can be interlocked with fixed cover, also comprise the cold drawing be fixedly installed in described fixed cover, and correspond to described cold drawing and be arranged on hot plate in movable guard, described cold drawing is provided with cooling chamber, described cooling chamber connects refrigerator via pipeline, described hot plate is provided with well heater, described movable guard is also provided with the second driving mechanism be in transmission connection with described hot plate, when described movable guard and fixed cover fasten, under the second driving mechanism drives, described hot plate have relative to cold drawing press close to or away from motion, described cold drawing and hot plate are equipped with temperature sensor, described hot plate is provided with displacement transducer, the side end face being right against hot plate at described cold drawing is also provided with length-adjustable support column.
Further, the port be connected with movable guard snapping at described fixed cover is provided with rubber blanket, and described fixed cover is communicated with air extractor.
Further, described air extractor is via the vacuum pump of pipeline connection in fixed cover inside.
Further, the inwall of described movable guard and fixed cover is provided with thermofin.
Further, described well heater is the electrical heating wire be arranged in " returning " font on hot plate end face.
Relative to prior art, the utility model has following advantage:
Test device of thermal conductivity coefficient described in the utility model, by arranging length-adjustable joint pin, distance between hot plate and cold drawing can be controlled, with can according to the displacement of the thickness determination hot plate of soft test specimen, thus avoid hot plate to move excessively causing test piece deformation and affect the accuracy of test result.In addition, by arranging air extractor, the accuracy of test result can be improved further.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the test device of thermal conductivity coefficient described in the utility model embodiment;
Description of reference numerals:
1-test board, 2-fixed cover, 3-movable guard, 4-cold drawing, 5-hot plate, 6-guide rail, 7-second driver element, 8-first driver element, 9-bracing frame, 10-cooling chamber, 11-well heater, 12-connection bracket, 13-support column, 14-refrigerator, 15-vacuum pump.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
The present embodiment relates to a kind of test device of thermal conductivity coefficient, and as shown in fig. 1, it comprises test board 1, test board 1 is fixedly installed fixed cover 2, also slide via the first driving mechanism and have movable guard 3, under the first driving mechanism drives, movable guard 3 can be interlocked with fixed cover 2.This test device of thermal conductivity coefficient also comprises the cold drawing 4 be fixedly installed in fixed cover 2, and correspond to cold drawing 4 and be arranged on hot plate 5 in movable guard 3, cold drawing 4 is provided with cooling chamber 10, and cooling chamber 10 connects refrigerator 14 via pipeline, and hot plate 5 is also provided with well heater 11.Movable guard 2 is also provided with the second driving mechanism be in transmission connection with hot plate 5, when movable guard 3 and fixed cover 2 fasten, second driving mechanism drive under, hot plate 5 have relative to cold drawing 4 press close to or away from motion.
On cold drawing 4 and hot plate 5, temperature sensor is equipped with in the present embodiment, and temperature sensor is the multiple of dispersed placement, hot plate 5 is provided with displacement transducer, the side end face being right against hot plate 5 at cold drawing 4 is also provided with length-adjustable support column 13, and support column 13 can adopt the stud and tube-in-tube structure that are set-located.The port be connected with movable guard 3 snapping at fixed cover 2 in the present embodiment is also provided with rubber blanket, and on fixed cover 2, be also communicated with air extractor, and this air extractor can be and is connected to vacuum pump 15 on fixed cover 2 via pipeline.Vacuum pump 15 and refrigerator 14 can be on the bracing frame 9 that is arranged on bottom test board 1.
In the present embodiment, the first driving mechanism comprises and is arranged on guide rail 6 on test board 1 and the first driver element 8, namely movable guard 3 is slidably arranged on guide rail 6, first driver element 8 can adopt ball screw assembly, thus under the driving of the first driver element 8, movable guard 3 directional sliding and fastening with fixed cover 2.Also be provided with connection bracket 12 in the side of movable guard 3 in the present embodiment, namely the leading screw of the first driver element 8 is connected with connection bracket 12.Second driving mechanism is arranged in connection bracket 12, second driving mechanism comprises the second driver element 7 be arranged in connection bracket 12, second driver element 7 is also for adopting roller screw pair, wherein leading screw is connected with hot plate 5 through movable guard 3, is also provided with seal at movable guard 3 and the contact position of leading screw.
On the inwall of movable guard 3 and fixed cover 2, not shown thermofin is provided with in the present embodiment, well heater 11 on hot plate 5 is also for being arranged on the electrical heating wire on hot plate 5 end face in " returning " font, and refrigerator 15 can be the integral structure adopting and have heating radiator and radiator fan, refrigerant can adopt water, certainly except as above structure, it is compressor and the condenser structure of medium that refrigerator 15 also can adopt with cold-producing medium.
This test device of thermal conductivity coefficient in use, first according to the length of specimen size setting support column 13, then test specimen is placed on support column 13, one end of test specimen protrudes from outside the end of support column 13, movable guard 3 is ordered about and fixed cover 2 fastens by the first driver element 8, with vacuum pump 15, the air in fixed cover 2 and movable guard 3 is extracted out again, then order about hot plate 5 by the second driver element to move to cold drawing 4, start to record hot plate 5 displacement after hot plate 5 contacts test specimen, and stop the second driver element 7 when the driving force of the second driver element 7 reaches setting numerical value and again record hot plate 5 displacement.Finally open refrigerator 14 and well heater 11, and by each temperature sensor detected temperatures parameter, after temperature and constant temperature time arrive setting value, can by the coefficient of heat conductivity of each data measured calculation testing piece, calculating formula is λ=QL/ (T
1-T
2) A, wherein Q is well heater 11 heating power, and L is specimen thickness, is also the difference of hot plate 5 twice displacement record, T
1and T
2be respectively the temperature at hot plate 5 and cold drawing 4 place, A is test specimen area.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a test device of thermal conductivity coefficient, comprises test board, is fixed on the fixed cover on described test board, and is slidably arranged in the movable guard on test board via the first driving mechanism, and under the first driving mechanism drives, described movable guard can be interlocked with fixed cover, also comprise the cold drawing be fixedly installed in described fixed cover, and correspond to described cold drawing and be arranged on hot plate in movable guard, described cold drawing is provided with cooling chamber, described cooling chamber connects refrigerator via pipeline, described hot plate is provided with well heater, described movable guard is also provided with the second driving mechanism be in transmission connection with described hot plate, when described movable guard and fixed cover fasten, under the second driving mechanism drives, described hot plate have relative to cold drawing press close to or away from motion, it is characterized in that: on described cold drawing and hot plate, be equipped with temperature sensor, described hot plate is provided with displacement transducer, the side end face being right against hot plate at described cold drawing is also provided with length-adjustable support column.
2. test device of thermal conductivity coefficient according to claim 1, is characterized in that: the port be connected with movable guard snapping at described fixed cover is provided with rubber blanket, and described fixed cover is communicated with air extractor.
3. test device of thermal conductivity coefficient according to claim 2, is characterized in that: described air extractor is via the vacuum pump of pipeline connection in fixed cover inside.
4. test device of thermal conductivity coefficient according to claim 2, is characterized in that: on the inwall of described movable guard and fixed cover, be provided with thermofin.
5. test device of thermal conductivity coefficient according to any one of claim 1 to 4, is characterized in that: described well heater is the electrical heating wire be arranged in " returning " font on hot plate end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520803958.4U CN205049506U (en) | 2015-10-13 | 2015-10-13 | Heat conductivity coefficient test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520803958.4U CN205049506U (en) | 2015-10-13 | 2015-10-13 | Heat conductivity coefficient test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205049506U true CN205049506U (en) | 2016-02-24 |
Family
ID=55343075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520803958.4U Expired - Fee Related CN205049506U (en) | 2015-10-13 | 2015-10-13 | Heat conductivity coefficient test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205049506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970109A (en) * | 2017-05-05 | 2017-07-21 | 核工业理化工程研究院 | A kind of equipment for measuring thermal conductivity of material |
| CN108333214A (en) * | 2018-01-30 | 2018-07-27 | 山东鉴玺工程质量检测有限公司 | A kind of test architecture object enclosed structure heat transfer coefficient holder |
| CN110514692A (en) * | 2019-08-07 | 2019-11-29 | 中国北方发动机研究所(天津) | A kind of provision for thermal insulation heat-transfer effect test and experiment device |
-
2015
- 2015-10-13 CN CN201520803958.4U patent/CN205049506U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970109A (en) * | 2017-05-05 | 2017-07-21 | 核工业理化工程研究院 | A kind of equipment for measuring thermal conductivity of material |
| CN106970109B (en) * | 2017-05-05 | 2024-01-05 | 核工业理化工程研究院 | Equipment for measuring heat conduction property of material |
| CN108333214A (en) * | 2018-01-30 | 2018-07-27 | 山东鉴玺工程质量检测有限公司 | A kind of test architecture object enclosed structure heat transfer coefficient holder |
| CN108333214B (en) * | 2018-01-30 | 2024-06-07 | 山东鉴玺工程质量检测有限公司 | Support for testing heat transfer coefficient of building maintenance structure |
| CN110514692A (en) * | 2019-08-07 | 2019-11-29 | 中国北方发动机研究所(天津) | A kind of provision for thermal insulation heat-transfer effect test and experiment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205049506U (en) | Heat conductivity coefficient test device | |
| CN109696362B (en) | Mechanical tensile property testing device and method used in high-temperature environment | |
| CN201673133U (en) | Heat transfer coefficient detector of building retaining structure | |
| CN104181195B (en) | Steady-state method-based heat conductivity coefficient measurement device | |
| KR101581463B1 (en) | Apparatus for detecting hermeticity and adiabaticity of window | |
| CN202735281U (en) | Thermal conductivity tester | |
| CN108844991B (en) | Device and method for measuring heat transfer coefficient of concrete plate | |
| CN100561207C (en) | Heat pipe performance inspection device | |
| CN205691524U (en) | A kind of device for fast detecting of glass transition coefficient based on unsteady-state heat transfer technology | |
| CN101493428A (en) | Heat pipe performance detection device | |
| CN102042928B (en) | Multilayer assembled explosion-proof sample thermostat | |
| CN104122292B (en) | Thermal contact resistance pick-up unit under a kind of LCS condition | |
| CN203551490U (en) | System for detecting heat insulating effect performance of automobile insulating member | |
| CN103018137B (en) | Apparatus and method used for determining thermal contact resistance in hot stamping process | |
| CN103019334B (en) | Server | |
| CN207946382U (en) | A kind of determining instrument of thermal coefficient and specific heat capacity | |
| CN203811564U (en) | High-precision thermal resistance testing device | |
| CN1982883A (en) | Device for inspecting hot-pipe performance | |
| CN102778474A (en) | Method for testing thermal coefficient by using upper-lower constant temperature parameter identification method | |
| CN102778476B (en) | Method for measuring heat conduction coefficient by using positive and negative bidirectional heat flow method | |
| CN210720219U (en) | Heat conduction module heat conductivity test platform | |
| CN204255952U (en) | Blood analyser reagent constant temperature system | |
| CN211927752U (en) | Novel flat-plate heat conductivity coefficient tester | |
| CN203534995U (en) | Cold mirror type dew point temperature measuring instrument based on Stirling cryocooler | |
| CN206235405U (en) | Glass plate actual temperature detection means in a kind of TFT LCT glass substrate forming stoves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20171013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |