CN204422460U - A kind of single side method measures the device of material thermal conductivity - Google Patents
A kind of single side method measures the device of material thermal conductivity Download PDFInfo
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- CN204422460U CN204422460U CN201520023931.3U CN201520023931U CN204422460U CN 204422460 U CN204422460 U CN 204422460U CN 201520023931 U CN201520023931 U CN 201520023931U CN 204422460 U CN204422460 U CN 204422460U
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- side method
- thermal conductivity
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Abstract
The utility model discloses the device that a kind of single side method measures material thermal conductivity, comprise housing, valve, case heaters, sample well heater, film temperature probe, heat insulation loop, constant temperature water bath apparatus, described closure periphery parcel case heaters, housing lower end is connected with constant temperature water bath apparatus, described sample well heater and film temperature probe are placed in parallel in device inside, sample upper end is near sample well heater, and lower end is near constant temperature water bath apparatus.This device uses single side method, and compact conformation, only need one piece of sample to measure, clear principle is understandable.
Description
Technical field
The utility model belongs to the technical field that hot physical property detects, and is specifically related to the device that a kind of single side method measures material thermal conductivity.
Background technology
In chemical industry, building trade, a lot of research and production and application process all relate to heat transmission, and coefficient of heat conductivity (or thermal conductivity) is often used to heat conductivility and the heat-insulating property of weighing material, is an important parameter of material.Coefficient of heat conductivity, also known as thermal conductivity, the thermal conduction capability of reflection material.By Fourier's law, it is defined as unit temperature gradient (1
min length, temperature reduces by 1
k) within the unit interval through heat that unit thermal conductive surface transmits.
The measuring method of coefficient of heat conductivity can be divided into steady state method and cold store enclosure according to heat-transfer mechanism.In principle, steady state method is a kind of pedestal method, is the foundation detecting additive method precision, is still subject to widespread use so far.But general steady state method device is more complicated, and sample requirement is large.
Utility model content
For above shortcomings in prior art, the purpose of this utility model is to provide a kind of single side method to measure the device of material thermal conductivity.
For achieving the above object, the utility model solves the technical scheme that its technical matters adopts and is:
A kind of single side method measures the device of material thermal conductivity, comprise housing, valve, case heaters, sample well heater, film temperature probe, heat insulation loop, constant temperature water bath apparatus, described closure periphery parcel case heaters, housing lower end is connected with constant temperature water bath apparatus, described sample well heater and film temperature probe are placed in parallel in device inside, sample upper end is near sample well heater, and lower end is near constant temperature water bath apparatus.
Further, housing lower end is sealed by heat insulation loop.
Further, described housing upper end is furnished with valve.
Further, the position of described case heaters adjusts with sample position change.
This device uses single side method, and compact conformation, only need one piece of sample to measure, clear principle is understandable.
Accompanying drawing explanation
Fig. 1 is the apparatus structure schematic diagram that single side method of the present utility model measures material thermal conductivity.
Each Reference numeral implication in figure: 1. housing, 2. film temperature probe, 3. case heaters, 4. heat insulation loop, 5. constant temperature water bath apparatus, 6. sample, 7. sample well heater, 8. valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, single side method of the present utility model measures the device of material thermal conductivity, comprise housing 1, valve 8, case heaters 3, sample well heater 7, film temperature probe 2, heat insulation loop 4, constant temperature water bath apparatus 5, housing 1 periphery parcel case heaters 3, housing 1 lower end is connected with constant temperature water bath apparatus 5, housing lower end is sealed by heat insulation loop 4, and sample well heater 7 and two film temperature probes 2 are placed in parallel in device inside.Sample 6 upper end is near sample well heater, and lower end is near constant temperature water bath apparatus 5.
Described housing 1 upper end is furnished with valve 8, vacuumizes process to device inside.The position of described case heaters 3 adjusts with sample position change.Described case heaters 3 temperature and the upper and lower temperature averages of sample are consistent.
When single side method of the present utility model measures the device use of material thermal conductivity, adopt following steps:
The first step: sample 6 is positioned between sample well heater 7 and constant temperature water bath apparatus 5.Sample 6 upper and lower sides is all placed with film temperature probe 2.Process is vacuumized to housing 1 inside.
Second step: start case heaters 3, with firm power
psample 6 is heated.Start constant temperature water bath apparatus 5 and sample well heater 7, adjusting sample 6 temperature simultaneously.
3rd step: treat that sample 6 upper and lower sides film temperature probe 2 registration is stablized, record registration
t 1 , T 2 .Obtain by sample heat formula (1):
(1)
4th step: calculate sample coefficient of heat conductivity according to formula (2) below:
(2)
λfor sample coefficient of heat conductivity,
afor specimen surface amasss,
δfor sample thickness.
Single side method heat conducting coefficient measuring method of the present utility model, only need one piece of sample, apparatus structure is compact.
Above-mentioned example is only for the citing done is described, the restriction not to embodiment.For those skilled in the art, other multi-form change or variations can also be made on the basis of the above description, these thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (4)
1. the device of a single side method measurement material thermal conductivity, comprise housing (1), valve (8), case heaters (3), sample well heater (7), film temperature probe (2), heat insulation loop (4), constant temperature water bath apparatus (5), it is characterized in that: described housing (1) periphery parcel case heaters (3), housing (1) lower end is connected with constant temperature water bath apparatus (5), described sample well heater (7) and film temperature probe (2) are placed in parallel in device inside, sample (6) upper end is near sample well heater, lower end is near constant temperature water bath apparatus (5).
2. single side method as claimed in claim 1 measures the device of material thermal conductivity, it is characterized in that: housing lower end is sealed by heat insulation loop (4).
3. single side method as claimed in claim 1 measures the device of material thermal conductivity, it is characterized in that: described housing (1) upper end is furnished with valve (8).
4. single side method as claimed in claim 1 measures the device of material thermal conductivity, it is characterized in that: the position of described case heaters (3) adjusts with sample position change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023931.3U CN204422460U (en) | 2015-01-14 | 2015-01-14 | A kind of single side method measures the device of material thermal conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023931.3U CN204422460U (en) | 2015-01-14 | 2015-01-14 | A kind of single side method measures the device of material thermal conductivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204422460U true CN204422460U (en) | 2015-06-24 |
Family
ID=53472817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023931.3U Expired - Fee Related CN204422460U (en) | 2015-01-14 | 2015-01-14 | A kind of single side method measures the device of material thermal conductivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204422460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017713A (en) * | 2016-06-28 | 2016-10-12 | 中航电测仪器股份有限公司 | Temperature measurement resistor |
-
2015
- 2015-01-14 CN CN201520023931.3U patent/CN204422460U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017713A (en) * | 2016-06-28 | 2016-10-12 | 中航电测仪器股份有限公司 | Temperature measurement resistor |
| CN106017713B (en) * | 2016-06-28 | 2020-04-24 | 中航电测仪器股份有限公司 | Temperature measuring resistor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20180114 |