CN104198524A - System and method for measuring equivalent heat conductivity coefficient - Google Patents
System and method for measuring equivalent heat conductivity coefficient Download PDFInfo
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- CN104198524A CN104198524A CN201410370810.6A CN201410370810A CN104198524A CN 104198524 A CN104198524 A CN 104198524A CN 201410370810 A CN201410370810 A CN 201410370810A CN 104198524 A CN104198524 A CN 104198524A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 61
- 239000007789 gas Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- 239000003345 natural gas Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 5
- 238000003556 assay Methods 0.000 claims description 4
- 238000007405 data analysis Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 2
- 239000003245 coal Substances 0.000 description 11
- 238000000197 pyrolysis Methods 0.000 description 8
- 210000002966 serum Anatomy 0.000 description 7
- 239000007787 solid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
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- 238000002474 experimental method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 238000003860 storage Methods 0.000 description 2
- 108010074506 Transfer Factor Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000009776 industrial production Methods 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 238000004781 supercooling Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
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Abstract
The invention relates to a system and a method for measuring an equivalent heat conductivity coefficient. The system comprises a sample cylinder, a heating system, a gas collection system and a data acquisition processing system, wherein the sample cylinder comprises a sample cylinder body and a sample cylinder cover; the heating system comprises a heating device, a direct current stabilized voltage supply and an alternating current power supply; the gas collection system comprises a gas collection pipe and a gas collection device; the data acquisition processing system comprises a detection device, a data acquisition device and a data processing device; the cylinder wall of the sample cylinder body comprises a heating element, a thermal insulation layer and a shell from interior to exterior; the sample cylinder cover comprises an upper cylinder cover and a lower cylinder cover; the upper cylinder cover and the lower cylinder cover are connected through the gas collection pipe and a sealing pipe; a graphite washer is arranged between the sample cylinder cover and the sample cylinder body; the heating device is arranged at an axis position of the sample cylinder; the gas collection device collects gas from interior of the sample cylinder through the gas collection pipe; and the detection device is arranged at a position, which deviates from the axis of the sample cylinder, inside the sample cylinder.
Description
Technical field
The present invention relates to a kind of mensuration system and method for Equivalent Thermal Conductivities, be particularly useful for pyrolytic can produce gas material Equivalent Thermal Conductivities measure.
Background technology
Coefficient of heat conductivity refers under unit gradient effect the heat by unit area in store list bit time, and this physical quantity is the important parameter of characterizing material heat conductivility.It is a kind of assembly being coexisted by heterogeneous material that the lump material of piling up can be considered as, and the lump coal of for example piling up is exactly the assembly being made up of coal, moisture in coal and interstitial gas.Heat-transfer mechanism in this assembly is very complicated, comprises heat conduction, convection current and three kinds of modes of radiation, so the coefficient of heat conductivity of lump material is in fact the apparent parameter of three kinds of heat transfer forms, is total effect of conducting heat, therefore be called equivalent heat transfer factor.Than the coefficient of heat conductivity of material, Equivalent Thermal Conductivities makes the diabatic process of the lump material inside of studying accumulation more simple and convenient.
Generally, the Equivalent Thermal Conductivities of material can only adopt the method for experiment to measure.Unstable state method is the thermal conductivity measurement method of developing in nearest decades, by measuring the Temperature Distribution temporal evolution of sample, thereby calculates coefficient of heat conductivity.The feature of the method is that Measuring Time is short, accuracy is high, low to environmental requirement, be used for studying high thermal conductivity coefficient material, or measure under hot conditions.Wherein the range of application of heat-pole method is more extensive, in the mensuration of liquid, Powdered, graininess or bulk material coefficient of heat conductivity, is applied.Heat-pole method is in measuring process, and temperature rise and the thermograde of sample are all very little, thereby the result recording can be considered the thermal conductivity value of determining at temperature.While utilizing heat-pole method to measure, sample can be at homogeneous heating under specified temp, has avoided measuring material thermal conductivity under higher temperature and occurs that specimen surface burning and measurement data can not definitely represent the problem of sample coefficient of heat conductivity.
At present heat-pole method is used for greatly measuring the material Equivalent Thermal Conductivities under normal temperature or lower temperature, does not measure the device of the Equivalent Thermal Conductivities of material under hot conditions, is especially applicable to the determinator of the Equivalent Thermal Conductivities that high temperature can aerogenesis material.And the normally function of temperature of the Equivalent Thermal Conductivities of material, under different temperatures, the Equivalent Thermal Conductivities of material has bigger difference.Industrial production status is to carry out under higher temperature mostly, and therefore such as destructive distillation, calcining etc. measure under hot conditions the Equivalent Thermal Conductivities of material even more important.
The invention that application number is 200910144808.6 provides a kind of method and system of measuring thermo-physical property of loose coals, can disposablely survey thermo-physical property of loose coals simultaneously, comprises coefficient of heat conductivity, thermal diffusivity and specific heat capacity.But this technology can only be measured the hot physical property of loose coal under normal temperature, can not obtain the thermophysical property of loose coal under high temperature, therefore can not obtain thermo-physical property of loose coals variation with temperature relation.
Summary of the invention
(1) technical matters solving
In order to overcome the defect of prior art, the invention provides a kind of measurement mechanism and method of lump material Equivalent Thermal Conductivities, can realize and measure the Equivalent Thermal Conductivities that the lower block decomposition of high temperature (<1000 DEG C) can aerogenesis material (for example, lump coal, waste tire, solid refuse, ore etc.).
(2) technical scheme
The invention discloses a kind of mensuration system of Equivalent Thermal Conductivities, comprise test specimen tube, heating system, natural gas gathering system and data acquisition processing system, described test specimen tube comprises sample cylindrical shell and sample cover, described heating system comprises heating arrangement, D.C. regulated power supply and AC power, described natural gas gathering system comprises discharge and gas extractor, described data acquisition processing system comprises sniffer, data collector and data processing equipment, 1000 DEG C of high assay temperature, wherein, described sample cylindrical shell comprises heater element, described heater element is connected with described AC power, described sample cover comprises cover, lower cover and sealed tube, between described upper cover and described lower cover, be connected with sealed tube by described discharge, and described discharge and described sealed tube run through described upper cover and described lower cover, between described sealed tube and described sample cover, be provided with packoff, described heating arrangement and described sniffer pass from described packoff by described sealed tube respectively, described heating arrangement is connected with the described D.C. regulated power supply outside test specimen tube, described sniffer is connected with the described data collector outside test specimen tube, described gas extractor passes through described discharge from described test specimen tube internal gathering gas, the data analysis that described data processing equipment gathers described data collector.
The barrel of described sample cylindrical shell comprises heater element, heat-insulation layer and shell from inside to outside, and described heating arrangement is arranged at the axial location of test specimen tube, and described sniffer is arranged on the position of described test specimen tube internal deviation test specimen tube axis.
Further, described mensuration system comprises water-circulating cooling device, and described water-circulating cooling device is connected with described upper cover.
Further, described natural gas gathering system further comprises gas quench system, and it is arranged between described discharge and described gas extractor.
Further, described heater element is high-temperature electric resistance furnace silk or Elema.
Further, between described sample cover and described sample cylindrical shell, be provided with graphite gasket.
Further, described heating arrangement is hot line.
Further, described sniffer is two K type thermopairs, and described two K type thermopairs are positioned on the same sagittal plane centered by test specimen tube axis.
Further, described data processing equipment calculates Equivalent Thermal Conductivities by heat-pole method.
The invention also discloses a kind of assay method of Equivalent Thermal Conductivities, described data processing equipment utilizes heat-pole method to calculate Equivalent Thermal Conductivities by following steps:
1) in the axial location of test specimen tube, insert heating arrangement, simultaneously sniffer is set departing from a distance, heating arrangement center, and records the distance between sniffer and heating arrangement center;
2) sample to be tested is packed in test specimen tube at random;
3) set and treat when sample inner barrel reaches after testing temperature, to be incubated testing temperature;
4) after specimen temperature in test specimen tube arrives stable state, the heating rate of test specimen tube is set, start the temperature at writing time and sniffer place;
5) heating power of setting heating arrangement, from heating arrangement is connected D.C. regulated power supply, the temperature at writing time and sniffer place;
6) repeating step 3) to step 5), calculate the Equivalent Thermal Conductivities that obtains the material under different temperatures according to measurement data.
Further, described heating arrangement is hot line, described sniffer is two K type thermopairs, described data processing equipment calculates Equivalent Thermal Conductivities based on the data of two K types thermocouple measurement and further comprises: respectively having, without the heating power of connecting writing time and temperature of charge and hot line under D.C. regulated power supply condition, according to
calculate Equivalent Thermal Conductivities, wherein, λ is coefficient of heat conductivity, and q is heating power, r
1and r
2be respectively the distance of two K type thermopair test coupon cylinder axis, when Δ θ is q=0, the temperature difference between two K type thermopairs, Δ θ ' is q ≠ 0 o'clock, the temperature difference between two K type thermopairs.
(3) beneficial effect
1) the invention provides a kind of Equivalent Thermal Conductivities determinator and realized high temperature and decomposition reaction can occur generate the mensuration of the lump material Equivalent Thermal Conductivities of gas.
2) sample cover adopts upper and lower two-part structure, and upper part is cooling, and the sealing of lower part had both ensured that serum cap can not melt and causes decomposing the gas leakage of generation under hot conditions; Realize again the sealing to test specimen tube, and can not affect the temperature of charge in test specimen tube.
3) heater element in sample cylindrical shell barrel adopts high-temperature electric resistance furnace silk or Elema, be connected with AC power, for sample provide can temperature programme heat, the uniform thermal environment of Equivalent Thermal Conductivities measurement is provided.
4) natural gas gathering system can realize the storage of pyrolysis gas on the one hand, ensures in experimentation without gas discharging; On the other hand, because the gas of pyrolytic is discharged in real time from test specimen tube, make in experiment the Equivalent Thermal Conductivities measured comprise that pyrolysis gas separates out the impact on it.
5) the present invention utilizes heat-pole method can obtain the Equivalent Thermal Conductivities of the lump material under different temperatures.
Brief description of the drawings
Fig. 1 is system architecture schematic diagram of the present invention.
In figure: 1: sample cylindrical shell, 2: hot line, 3: sample cover (wherein 3-1 is that test specimen tube covers part, and 3-2 is that sample cover bottom is divided), 4: discharge, 5: thermopair, 6: serum cap, 7: water-circulating cooling device, 8: D.C. regulated power supply, 9: gas quench system, 10: gas extractor, 11: data collector, 12: data processing equipment, 13: AC power, 14: graphite gasket, 15: sealed tube.
Be below embodiment, and by reference to the accompanying drawings patent of the present invention be described further.
Embodiment
As shown in Figure 1, system setting comprises test specimen tube, heating system, natural gas gathering system, four parts of data acquisition processing system to measuring system in the present embodiment.
Test specimen tube: test specimen tube is made up of sample cylindrical shell 1 and sample cover 3, is provided with graphite gasket 14 between sample cylindrical shell and sample cover and seals.Wherein sample cylindrical shell 1 barrel comprises heater element, heat-insulation layer and three parts of shell from inside to outside; Heater element adopts high-temperature electric resistance furnace silk or Elema, be connected with AC power 13, for sample provide can temperature programme heat.Disturb the impact on measuring accuracy in order to eliminate external environment condition as far as possible, sample cylindrical shell 1 heat-insulation layer is refractory fibre heat-insulation layer, and this form has good heat-insulating property, and shell is stainless steel.Sample cover 3 is divided into upper and lower two parts, and two parts are only connected with sealed tube 15 by discharge 4, and wherein sealed tube 15 can insert hot line 2 and thermopair 5, avoids the upper and lower two-part temperature of test specimen tube lid to influence each other.Test specimen tube covers part 3-1 and is reserved with discharge 4, sealed tube 15 and the serum cap 6 as packoff between sealed tube and described sample cover.Upper part 3-1 is connected with water-circulating cooling device 7, reduces the temperature of discharge 4 and sealed tube 15, ensures that serum cap 6 can not melt and cause leaking gas under hot conditions; Sample cover bottom divides 3-2 to be connected with sample cylindrical shell 1 with graphite gasket 14, and isolated air provides confined space for sample heats up.
Heating system: heating system comprises two parts, a part is the AC power 13 that working power is provided for the heater element of sample cylindrical shell 1; Another part comprises hot line 2, and provides the D.C. regulated power supply 8 of working power for hot line 2.
Natural gas gathering system: lump material (particle diameter is 5～50mm) at high temperature decomposes the high-temperature gas producing derives through discharge 4, after apparatus for supercooling 9 is cooling, enters gas extractor 10 and stores.Natural gas gathering system can realize the storage of pyrolysis gas on the one hand, ensures in experimentation without gas discharging; On the other hand, because the gas of pyrolytic is discharged in real time from test specimen tube, make in experiment the Equivalent Thermal Conductivities measured comprise that pyrolysis gas separates out the impact on it.
Data acquisition processing system: data acquisition processing system comprises two K type thermopairs 5, data collector 11 and data processing equipments 12.Thermopair 5 is set departing from test specimen tube axial location, directly measures the temperature variation in sample, temperature measuring data is gathered by data collector 11, and transfers to data processing equipment 12 by Programme Line.
The present invention adopts heat-pole method to measure lump material Equivalent Thermal Conductivities.The ultimate principle of heat-pole method is to measure to be placed on the temperature rise of wire thermal source in sample and the Temperature Distribution of material inside, and the relation of moving speed and material characteristic according to heat obtains the coefficient of heat conductivity of material.
The concrete operation step corresponding with said system is as follows:
1, in the axial location of test specimen tube, insert hot line, simultaneously thermopair measuring point is set departing from Call Center a distance, and record is apart from the distance of hot line.
2, block sample to be measured (particle diameter is 5～50mm) is packed in test specimen tube at random; Put graphite gasket, cover cover, and hot line and thermopair are passed in the sealed tube from cover, sealed tube is sealed with serum cap.
3, discharge is connected with natural gas gathering system; On cover, part is connected with circulating water device, and passes into recirculated cooling water; Hot line is connected with direct supply; Two K type thermopairs are connected with data acquisition processing system; Test specimen tube is connected with AC power.
4, set and treat when cylindrical shell reaches after testing temperature, to be incubated testing temperature, ensure specimen temperature distributional stability in cylindrical shell.
5, after specimen temperature in test specimen tube arrives stable state, the temperature programme speed of test specimen tube is set, start the temperature at writing time and thermopair place.
6, set the heating power of hot line, from hot line switches on power, the temperature at writing time and thermopair place.
7, repeating step 4-6, can calculate the Equivalent Thermal Conductivities that obtains the lump material under different temperatures according to experimental data.
8, in whole experimentation, open gas quench system, the pyrolysis gas that discharge is derived is lowered the temperature, and is convenient to store in gas extractor.
In above-mentioned steps 7, can the formula 7 based on below deriving obtain the Equivalent Thermal Conductivities of the lump material under different temperatures.It is concrete that to shift process onto as follows:
Suppose an infinitely long cylinder, be placed on temperature by the electric furnace of straight line rule variation, initial temperature is constant T
0,, after elapsed time t, furnace temperature becomes T
c=T
0+ Bt.Have the line heat source of an endless in material center, its heating power is q (W/m), and from heat conduction theory, the variation in the temperature field being caused by thermal source at infinitely great interior of articles, can be described by the following one-dimensional heat conduction differential equation:
θ＝T-T
0 (2)
Starting condition: t=0, θ=0 (3)
Boundary condition: r=r
i,
r＝r
o，
According to the above-mentioned equation of Boundary Condition for Solving, can obtain
Two point for measuring temperature r1 in sample, r2 place measures respectively temperature difference θ and the Δ θ ' of q=0 and q ≠ 0 o'clock, has
Wherein:
λ is coefficient of heat conductivity, W/m-K
A is thermal diffusivity, m
2/ s
α is environment and the cylindrical coefficient of heat transfer, W/m
2-K
R is certain some distance apart from hot line in sample, m
R
ifor the radius of hot line, m
R
ofor the external radius of material, m
T is to the time of measuring the moment, s from when heating
T is temperature, DEG C
T
cfor environment temperature, DEG C
θ is excess enthalpy temperature, DEG C
B is the rate of heat addition, K/s
Q is heating power, W/m.
In order further to set forth the present invention, hereinafter will provide two most preferred embodiments.
Most preferred embodiment one: particle diameter is the mensuration of 30mm coal cinder Equivalent Thermal Conductivities
1, in the axial location of test specimen tube, inserting diameter is 0.5mm nickel chromium triangle hot line, from Call Center 3mm, 5mm place, two thermopair measuring points is being set respectively, and is ensureing that two thermopair measuring points are on same sagittal plane simultaneously.
2, take 3.01kg lump coal and be deposited at random in test specimen tube, load onto graphite gasket on the top of test specimen tube, cover cover, and hot line and thermopair are passed in the sealed tube from cover, sealed tube is sealed with serum cap.
3, discharge is connected with natural gas gathering system; On cover, part is connected with circulating water device, and passes into recirculated cooling water; Hot line is connected with direct supply; Two K type thermopairs are connected with data acquisition processing system; Test specimen tube is connected with AC power.
4, in the time that temperature in sample is consistent with fire box temperature, control fire box temperature and change by the straight line rule of 0.2 DEG C/min, start record data from connecting AC power, be 5min writing time; After record, open direct supply, giving the power input of hot line is 2.7w, starts record data from connecting direct supply, and be 5min writing time; After record, close direct supply.
5, after specimen temperature reaches 100 DEG C of next temperature nodes, insulation 1h; After specimen temperature in test specimen tube arrives stable state, repeating step 4, can calculate the lump coal Equivalent Thermal Conductivities at obtaining 100 DEG C according to experimental data.
6, repeating step 4-5, can calculate the lump coal Equivalent Thermal Conductivities obtaining respectively at 200 DEG C, 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, 700 DEG C according to experimental data.
7, reaction finishes, and closes all power supplys to stop heating, after test specimen tube medium-sized coal is cooling, takes out; The pyrolysis gas of storing in emptying natural gas gathering system; Emit recirculated water; Carry out data processing.
| Temperature [DEG C] | 27 | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
| Equivalent Thermal Conductivities [w/m-DEG C] | 0.1321 | 0.1574 | 0.1988 | 0.3074 | 0.3790 | 0.5679 | 0.8044 | 1.1264 |
Most preferred embodiment two: particle diameter is the mensuration of 5mm solid refuse Equivalent Thermal Conductivities
1, in the axial location of test specimen tube, inserting diameter is 0.5mm nickel chromium triangle hot line, from Call Center 3mm, 5mm place, two thermopair measuring points is being set respectively, and is ensureing that two thermopair measuring points are on same sagittal plane simultaneously.
2, take 2.65kg solid refuse and be deposited at random in test specimen tube, load onto graphite gasket on the top of test specimen tube, cover cover, and hot line and thermopair are passed in the sealed tube from cover, sealed tube is sealed with serum cap.
3, discharge is connected with natural gas gathering system; On cover, part is connected with circulating water device, and passes into recirculated cooling water; Hot line is connected with direct supply; Two K type thermopairs are connected with data acquisition processing system; Test specimen tube is connected with AC power.
4, in the time that temperature in sample is consistent with fire box temperature, control fire box temperature and change by the straight line rule of 0.2 DEG C/min, start record data from connecting AC power, be 5min writing time; After record, open direct supply, giving the power input of hot line is 3w, starts record data from connecting direct supply, and be 5min writing time; After record, close direct supply.
5, after specimen temperature reaches 100 DEG C of next temperature nodes, insulation 1h; After specimen temperature in test specimen tube arrives stable state, repeating step 4, can calculate the solid refuse Equivalent Thermal Conductivities at obtaining 100 DEG C according to experimental data.
6, repeating step 4-5, can calculate the solid refuse Equivalent Thermal Conductivities at obtaining 200 DEG C, 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, 700 DEG C according to experimental data respectively.
7, reaction finishes, and closes all power supplys to stop heating, after solid refuse in test specimen tube is cooling, takes out; The pyrolysis gas of storing in emptying natural gas gathering system; Emit recirculated water; Carry out data processing.
| Temperature [DEG C] | 15 | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
| Equivalent Thermal Conductivities [w/m-DEG C] | 0.3422 | 0.5614 | 0.7436 | 0.9853 | 1.3059 | 1.7316 | 2.2968 | 3.0476 |
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the mensuration system of an Equivalent Thermal Conductivities, it is characterized in that, comprise test specimen tube, heating system, natural gas gathering system and data acquisition processing system, described test specimen tube comprises sample cylindrical shell and sample cover, described heating system comprises heating arrangement, D.C. regulated power supply and AC power, described natural gas gathering system comprises discharge and gas extractor, described data acquisition processing system comprises sniffer, data collector and data processing equipment, 1000 DEG C of high assay temperature, wherein, described sample cylindrical shell comprises heater element, described heater element is connected with described AC power, described sample cover comprises cover, lower cover and sealed tube, between described upper cover and described lower cover, be connected with sealed tube by described discharge, and described discharge and described sealed tube run through described upper cover and described lower cover, between described sealed tube and described sample cover, be provided with packoff, described heating arrangement and described sniffer pass from described packoff by described sealed tube respectively, described heating arrangement is connected with the described D.C. regulated power supply outside test specimen tube, described sniffer is connected with the described data collector outside test specimen tube, described gas extractor passes through described discharge from described test specimen tube internal gathering gas, the data analysis that described data processing equipment gathers described data collector.
2. the mensuration system of Equivalent Thermal Conductivities according to claim 1, it is characterized in that, the barrel of described sample cylindrical shell comprises heater element, heat-insulation layer and shell from inside to outside, described heating arrangement is arranged at the axial location of test specimen tube, and described sniffer is arranged on the position of described test specimen tube internal deviation test specimen tube axis.
3. the mensuration system of Equivalent Thermal Conductivities according to claim 1 and 2, is characterized in that, further comprises water-circulating cooling device, and described water-circulating cooling device is connected with described upper cover.
4. the mensuration system of Equivalent Thermal Conductivities according to claim 1 and 2, is characterized in that, described natural gas gathering system further comprises gas quench system, and described gas quench system is arranged between described discharge and described gas extractor.
5. the mensuration system of Equivalent Thermal Conductivities according to claim 1 and 2, is characterized in that, described heater element is high-temperature electric resistance furnace silk or Elema.
6. the mensuration system of Equivalent Thermal Conductivities according to claim 1 and 2, is characterized in that, between described sample cover and described sample cylindrical shell, is provided with graphite gasket.
7. the mensuration system of Equivalent Thermal Conductivities according to claim 1 and 2, is characterized in that, described heating arrangement is hot line.
8. the mensuration system of Equivalent Thermal Conductivities according to claim 1 and 2, is characterized in that, described sniffer is two K type thermopairs, and described two K type thermopairs are positioned on the same sagittal plane centered by test specimen tube axis.
9. an assay method for the Equivalent Thermal Conductivities of the mensuration system based on described in claim 1 or 2, is characterized in that, described data processing equipment utilizes heat-pole method to calculate Equivalent Thermal Conductivities by following steps:
1) in the axial location of test specimen tube, insert heating arrangement, simultaneously sniffer is set departing from a distance, heating arrangement center, and records the distance between sniffer and heating arrangement center;
2) sample to be tested is packed in test specimen tube at random;
3) set and treat when sample inner barrel reaches after testing temperature, to be incubated testing temperature;
4) after specimen temperature in test specimen tube arrives stable state, the heating rate of test specimen tube is set, start the temperature at writing time and sniffer place;
5) heating power of setting heating arrangement, from heating arrangement is connected D.C. regulated power supply, the temperature at writing time and sniffer place;
6) repeating step 3) to step 5), calculate the Equivalent Thermal Conductivities that obtains the material under different temperatures according to measurement data.
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Cited By (6)
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| CN105223231A (en) * | 2015-10-21 | 2016-01-06 | 同济大学 | The test method of test expanding fire-proof paint effective thermal expansion coefficient |
| CN106248725A (en) * | 2016-09-16 | 2016-12-21 | 北京工业大学 | A kind of porous media Equivalent Thermal Conductivities measuring method |
| CN108896606A (en) * | 2018-09-25 | 2018-11-27 | 国电环境保护研究院有限公司 | A kind of unstable state cylinder heat resource method temperature becomes effective thermal conductivity measurement device and method |
| CN111505047A (en) * | 2020-04-24 | 2020-08-07 | 清华大学 | Device for measuring heat conductivity of high-temperature high-pressure multi-element gas mixture |
| CN112067651A (en) * | 2020-08-10 | 2020-12-11 | 中国科学院空间应用工程与技术中心 | Heat flow measuring thermal probe inside resident type outer star body and measuring method |
| CN112729992A (en) * | 2021-01-19 | 2021-04-30 | 浙江大学 | Thermophysical property testing device for organic contaminated soil |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196484A (en) * | 2006-12-08 | 2008-06-11 | 中南大学 | Device and method for measuring dynamic self-heating rate of vulcanizing ore |
| CN101639455A (en) * | 2009-09-04 | 2010-02-03 | 陈清华 | Method and system for testing thermo-physical property of loose coals |
| CN201464401U (en) * | 2009-07-27 | 2010-05-12 | 河南工业大学 | Device for measuring grain heat conductivity coefficients |
| CN101718725A (en) * | 2009-12-08 | 2010-06-02 | 中国科学院广州能源研究所 | Device for measuring sample thermo-physical property in situ |
| CN103499603A (en) * | 2013-09-27 | 2014-01-08 | 大连理工大学 | Non-contact high-temperature thermophysical property parameter measurement device and non-contact high-temperature thermophysical property parameter measurement method |
| CN204044093U (en) * | 2014-07-30 | 2014-12-24 | 北京神雾环境能源科技集团股份有限公司 | A kind of Analytical system of Equivalent Thermal Conductivities |
-
2014
- 2014-07-30 CN CN201410370810.6A patent/CN104198524B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196484A (en) * | 2006-12-08 | 2008-06-11 | 中南大学 | Device and method for measuring dynamic self-heating rate of vulcanizing ore |
| CN201464401U (en) * | 2009-07-27 | 2010-05-12 | 河南工业大学 | Device for measuring grain heat conductivity coefficients |
| CN101639455A (en) * | 2009-09-04 | 2010-02-03 | 陈清华 | Method and system for testing thermo-physical property of loose coals |
| CN101718725A (en) * | 2009-12-08 | 2010-06-02 | 中国科学院广州能源研究所 | Device for measuring sample thermo-physical property in situ |
| CN103499603A (en) * | 2013-09-27 | 2014-01-08 | 大连理工大学 | Non-contact high-temperature thermophysical property parameter measurement device and non-contact high-temperature thermophysical property parameter measurement method |
| CN204044093U (en) * | 2014-07-30 | 2014-12-24 | 北京神雾环境能源科技集团股份有限公司 | A kind of Analytical system of Equivalent Thermal Conductivities |
Non-Patent Citations (1)
| Title |
|---|
| 任成等: "高温气冷堆球床等效导热系数实验研究进展", 《科学技术与工程》, vol. 13, no. 7, 31 March 2013 (2013-03-31) * |
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