CN107957433A - Textile thermal property test device and test method under a kind of low temperature environment - Google Patents
Textile thermal property test device and test method under a kind of low temperature environment Download PDFInfo
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- CN107957433A CN107957433A CN201810031314.6A CN201810031314A CN107957433A CN 107957433 A CN107957433 A CN 107957433A CN 201810031314 A CN201810031314 A CN 201810031314A CN 107957433 A CN107957433 A CN 107957433A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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Abstract
The invention discloses textile thermal property test device and test method under a kind of low temperature environment.The device includes test module, data transfer adjustment module and data processing and output module；The test module includes blender, test cup, stirring rod, temperature sensor and heater；The test cup integral sealing；Stirring rod, temperature sensor and heater are placed inside the test cup；Stirring rod is connected with blender；The data transfer adjustment module is made of PID adjusting apparatus and heating power adjuster；The PID adjusting apparatus is connected with temperature sensor；The heating power adjuster is connected with heater；The PID adjusting apparatus is connected with heating power adjuster and heating power adjuster respectively.This method human body environment can more intuitively and accurately represent textile thermal property under low temperature environment under simple analog low temperature compared with traditional warmth retention property is tested, simple and practicable.
Description
Technical field
The invention belongs to textile thermal property testing field, is specifically textile thermal property survey under a kind of low temperature environment
Trial assembly is put and test method.
Background technology
With modern science and technology development and human contact environmental condition expansion, low temperature environment operation (- 30 DEG C~-80
DEG C) it is widely distributed, such as at low ambient temperatures Bioexperiment, south poles scientific research investigate, high and cold frontier defense area soldier's daily workout,
Presently mainly individual is protected using textile thermal property., will for textile thermal property in low temperature environment
Ask higher and higher, be capable of the thermal property of accurate evaluation textile to developing the textile with antifreezing protection performance with important
Meaning.
At present, more to the evaluation study of the thermal property of textile both at home and abroad, standard is also gradually perfect.Such as《Textile
The measure of thermal resistance and dampness under physiological effect limit》、《Textile heat conduction performance test standard method》、《Textile physiology
The measure of thermal resistance and dampness under comfort limit》、《The test method of the infrared heat accumulation thermal of textile》Deng.Characterize warming
The index of performance mainly has warming rate, heat transfer coefficient, clo value, thermal resistance etc..But these standards or index are to be directed under room temperature to spin
The evaluation of fabric thermal property, for textile thermal property under low temperature environment evaluation method currently without clear and definite standard or
Method.Document《Chen X,Wang R,Li T,et al.Synthesis of n-alkane mixture microcapsule
and its application in low-temperature protective fabric[J].Journal of wuhan
university of Technology-Mater.sci.ed.,2017,32(3):525-531》Using the low temperature resistant time come
The thermal property of textile is evaluated, i.e., textile is sewn into a certain size pocket, loads temp probe in pocket, is put
In certain temperature baking oven inner equilibrium for a period of time, then be placed in ultra low temperature freezer, record temperature changes with time.Though
The thermal property of textile at low temperature so can be evaluated to a certain extent, but this method error is larger, and with actual use
Situation deviation is larger, it is impossible to the thermal property of textile under accurate evaluation low temperature.Can be at low ambient temperatures therefore, it is necessary to one kind
The device and test method tested textile thermal property, can accurate evaluation textile thermal property directly perceived.
The content of the invention
In view of the deficiencies of the prior art, the technical problem that the present invention intends to solve is to provide textile under a kind of low temperature environment
Thermal property test device and test method.
The technical solution that the present invention solves described device technical problem is to provide textile warmth retention property under a kind of low temperature environment
Energy test device, it is characterised in that the device includes test module, data transfer adjustment module and data processing and output module；
The test module includes blender, test cup, stirring rod, temperature sensor and heater；The test cup is whole
Body seals；Stirring rod, temperature sensor and heater are placed inside the test cup；Stirring rod is connected with blender；
The data transfer adjustment module is made of PID adjusting apparatus and heating power adjuster；The PID adjusting apparatus and temperature
Spend sensor connection；The heating power adjuster is connected with heater；The PID adjusting apparatus respectively with heating power adjuster
Connected with heating power adjuster.
The technical solution that the present invention solves the method technical problem is to provide textile warmth retention property under a kind of low temperature environment
The test method of energy, it is characterised in that this method comprises the following steps：
The first step, into line blank test：
(1) liquid is added into the test cup of test module, covers cup lid, sealing test cup；Test cup is placed in setting
In the temperature thermostat water bath identical with body temperature；
(2) blender is started；Log-on data transmits adjustment module and data processing and output module；Whole device is preheated
So that the fluid temperature stabilization in test cup is in body temperature；
(3) after preheating, test module is placed in low temperature environment；Data transfer adjustment module and data processing and defeated
Go out template to be placed in room temperature environment；
(4) after being come into full contact with low temperature environment, test module is taken out from low temperature environment, closes blender and data passes
Defeated adjustment module；The liquid that data processing and output module analysis are placed in low temperature environment test cup this period maintains body
The power consumption Q that temperature is consumedIt is empty；
Second step, carry out specimen test：
(1) sample is cut into the size identical with wall of cup, is placed on the set temperature thermostatted water identical with body temperature
In bath；
(2) liquid is added into the test cup of test module, covers cup lid, sealing test cup；Test cup is placed in setting
In the temperature thermostat water bath identical with body temperature；
(3) blender is started；Log-on data transmits adjustment module and data processing and output module；Whole device is preheated
So that the fluid temperature stabilization in test cup is in body temperature；
(4) after preheating, sample is completely encapsulated on the outside of the wall of cup of test cup and fixed, then test module is placed in
In the low temperature environment identical with blank test temperature；Data transfer adjustment module and data processing and output template are placed on room temperature
In environment；
(5) it is identical with blank test with the time of contact of low temperature environment, then test module is taken out from low temperature environment,
Sample is removed in test cup, closes blender and data transfer adjustment module；Data processing and output module analysis are placed in
Liquid in low temperature environment test cup this period maintains the power consumption Q that body temperature is consumedSurvey；
3rd step, the evaluation of sample heat-insulating property：
Sample heat-insulating property is calculated by formula 1：
In formula：I is warming rate under sample low temperature environment；QIt is emptyFor the power consumption of blank test consumption；QSurveyConsumed for specimen test
Power consumption.
Compared with prior art, beneficial effect of the present invention is：
(1) apparatus structure is simple, easy to operate, highly practical, and test result is more accurate, and can be according to general reality
Textile use environment temperature selects test temperature, and according to calculating, the warming rate of textile, applicability are wide at this temperature.
(2) this method can human body environment be more intuitively and accurately under simple analog low temperature compared with traditional warmth retention property is tested
Represent textile thermal property under low temperature environment, it is simple and practicable.
Brief description of the drawings
Fig. 1 is textile thermal property test device and a kind of test of embodiment of test method under low temperature environment of the present invention
Device overall structure diagram；
Fig. 2 is textile thermal property test device and a kind of test of embodiment of test method under low temperature environment of the present invention
Cup scale diagrams；(in figure：1 is test module, and 2 be data transfer adjustment module, and 3 be data processing and output module, 1-1
For blender, 1-2 is test cup, and 1-3 is through hole, and 1-4 is stirring rod, and 1-5 is temperature sensor, and 1-6 is heater, and 1-7 is
Insulating moulding coating, 2-1 are conducting wire, and 2-2 is PID adjusting apparatus, and 2-3 is heating power adjuster, and 1-2-1 is cup lid, and 1-2-2 is cup
Wall, 1-2-3 are bottom of a cup)
Embodiment
The specific embodiment of the present invention is given below.Specific embodiment is only used for that the present invention is further described, unlimited
The application scope of the claims processed.
The present invention provides textile thermal property test device (abbreviation device, referring to Fig. 1-2) under a kind of low temperature environment,
It is characterized in that the device includes test module 1, data transfer adjustment module 2 and data processing and output module 3；
The test module 1 includes blender 1-1, test cup 1-2, stirring rod 1-4, temperature sensor 1-5 and heater
1-6；The test cup 1-2 is made of cup lid 1-2-1, wall of cup 1-2-2 and bottom of a cup 1-2-3, and wall of cup 1-2-2 and bottom of a cup 1-2-3 connect
Connect, cup lid 1-2-1 is detachable and middle part is provided with through hole 1-3, test cup integral sealing；Stirring is placed inside the test cup 1-2
Rod 1-4, temperature sensor 1-5 and heater 1-6, stirring rod 1-4 are connected by through hole 1-3 with blender 1-1；The blender
1-1 can adjust rotating speed；The test cup 1-2 is hollow straight tube shape；The heater 1-6 can adjust heating power, tool
Body is electric heating tube, heating rod or heating wire；
The test cup 1-2 is made of pure copper material, and cup body effective depth is 148mm, interior diameter 72mm, wall of cup 1-2-2
It is 2mm with bottom of a cup 1-2-3 thickness, cup lid 1-2-1 is concordant with rim of a cup, keeps sealing；Cup lid center is provided with the through hole of a diameter of 7mm
For stirring rod 1-4 by leading to away from the through hole for being respectively provided with a diameter of 5mm at the 10mm of central through hole both sides respectively for conducting wire 2-1
Cross.
Bottom of a cup and cup lid coating thermal insulating layer 1-7, prevent that low temperature environment causes mistake to test result during test；Institute
It is aeroge coating to state insulating moulding coating layer 1-7, coating layer thickness 5mm.
The data transfer adjustment module 2 is made of PID adjusting apparatus 2-2 and heating power adjuster 2-3；The PID tune
Section instrument 2-2 is connected by conducting wire 2-1 with temperature sensor 1-5；The heating power adjuster 2-3 passes through conducting wire 2-1 and heating
Device 1-6 connections；The PID adjusting apparatus 2-2 is connected with heating power adjuster 2-3 and heating power adjuster 2-3 respectively；It is described
Conducting wire 2-1 uses low temperature resistant electric wire；
The data processing and output module 3 are the computers for being provided with data processing software (labview).
The PID adjusting apparatus 2-2 can displays temperature to user；The heating power adjuster 2-3, which is used to adjust, to be heated
The heating power of device 1-6；
The temperature of liquid in temperature sensor 1-5 collecting test cups 1-2, and temperature data is passed to PID and is adjusted；PID tune
Section instrument 2-2 does contrast to control heating power adjuster 2-3 according to the temperature collected with target temperature (36 DEG C), and then adjusts
The heating power of heater 1-6；The data processing and output module 3 read temperature data in required time, can monitor in real time
And the temperature of liquid in test cup 1-2 is recorded, show the temperature of liquid and output power change in test cup in the testing time, then
Output result is handled, obtains the power consumption for maintaining fluid temperature to be consumed in target temperature in the testing time；Finally utilize public affairs
Formula calculates the warming rate of textile at low ambient temperatures.
Invention also provides a kind of test method of textile thermal property under low temperature environment, it is characterised in that the party
Method comprises the following steps：
The first step, into line blank test：
(1) liquid is added into the test cup 1-2 of test module 1, covers cup lid 1-2-1, sealing test cup 1-2；It will survey
Test glass 1-2, which is fitted into plastic packaging bag, to be placed in the thermostat water bath of set temperature (36 DEG C) identical with body temperature；
(2) start blender 1-1, adjust rotating speed；Log-on data transmits adjustment module 2 and data processing and output module 3
Test software, set gathered data time interval and data preserve path；Whole device is preheated into 10-120min, is made
The fluid temperature stabilization in test cup 1-2 is obtained in body temperature；
(3) after preheating, test module 1 is placed in low temperature environment (ultra low temperature freezer, -30~-80 DEG C)；Data pass
Defeated adjustment module 2 and data processing and output template 3 are placed in room temperature environment；
(4) after coming into full contact with (30-120min) with low temperature environment, test module 1 is taken out from low temperature environment, closing is stirred
Mix device 1-1 and data transfer adjustment module 2；Data processing and the analysis of output module 3 are placed in low temperature environment test cup this period
Liquid in 1-2 maintains the power consumption that body temperature is consumed；Blank test three times is carried out respectively, records the power consumption Q of consumptionSky 1、
QSky 2、QSky 3；Obtain QSky 1、QSky 2、QSky 3Average value QIt is empty, with QIt is emptySize reflection blank test when the power consumption that consumes；
Second step, carry out specimen test：
(1) sample is cut into the size identical with wall of cup 1-2-2, is loaded into plastic packaging bag and is placed in set temperature and human body
In the thermostat water bath of body temperature identical (36 DEG C)；
(2) liquid is added into the test cup 1-2 of test module 1, covers cup lid 1-2-1, sealing test cup 1-2；It will survey
Test glass 1-2, which is fitted into plastic packaging bag, to be placed in the thermostat water bath of set temperature (36 DEG C) identical with body temperature；
(3) start blender 1-1, adjust rotating speed；Log-on data transmits adjustment module 2 and data processing and output module 3
Test software, set gathered data time interval and data preserve path；Whole device is preheated into 10-120min, is made
The fluid temperature stabilization in test cup 1-2 is obtained in body temperature；
(4) after preheating, sample is completely encapsulated on the outside of the wall of cup 1-2-2 of test cup and is fixed with rubber band, then
Test module 1 is placed in low temperature environment (ultra low temperature freezer, -30~-80 DEG C as blank test)；Data transfer adjusts mould
Block 2 and data processing and output template 3 are placed in room temperature environment；
(5) after coming into full contact with (30-120min, identical with blank test) with low temperature environment, by test module 1 from low temperature ring
Taken out in border, sample is removed on test cup 1-2, close blender 1-1 and data transfer adjustment module 2；Data processing and
Output module 3 analyzes the power consumption that the liquid being placed in low temperature environment test cup this period 1-2 maintains body temperature to be consumed；Point
Specimen test three times is not carried out, records the power consumption Q of consumptionSurvey1、QSurvey 2、QSurvey 3；Obtain QSurvey 1、QSurvey 2、QSurvey 3Average value QSurvey, with QSurveyIt is big
The power consumption consumed during small reflection specimen test.
3rd step, the evaluation of sample heat-insulating property：
Sample heat-insulating property is calculated by formula 1：
In formula：I is warming rate under sample low temperature environment；QIt is emptyFor the power consumption of blank test consumption；QSurveyConsumed for specimen test
Power consumption；The quality of textile thermal property under the size reflection low temperature environment of I, the bigger explanation textile thermal property of I values is more
It is good.
Embodiment
The test method of textile thermal property under a kind of low temperature environment, it is characterised in that this method comprises the following steps：
The first step, into line blank test：
(1) water of 36 DEG C of 500mL is added into the test cup 1-2 of test module 1, covers cup lid 1-2-1, sealing test
Cup 1-2；Test cup 1-2 is fitted into plastic packaging bag and is placed in 36 DEG C of thermostat water baths；
(2) start blender 1-1, adjust rotating speed；Log-on data transmits adjustment module 2 and data processing and output module 3
Test software, set gathered data time interval and data preserve path；Whole device is preheated 10 so that test cup
Water temperature in 1-2 is 36 DEG C；
(3) after preheating, test module 1 is placed in ultra low temperature freezer (- 40 DEG C of temperature)；Data transfer adjustment module
2 and data processing and output template 3 be placed under room temperature environment；
(4) after 30min, test module 1 is taken out from ultra low temperature freezer, closes blender 1-1 and data transfer is adjusted
Module 2；Data processing and output module 3 analyze in 30min that water maintains 36 DEG C of power consumptions consumed in test cup 1-2；Respectively into
Row blank test three times, records the power consumption Q of consumptionSky 1、QSky 2、QSky 3；Obtain QSky 1、QSky 2、QSky 3Average value QIt is empty, with QIt is emptySize it is anti-
Reflect the power consumption consumed during blank test；
Second step, carry out specimen test：
(1) Sample A (terylene hydro-entangled non-woven fabric, grammes per square metre 50g/m are prepared respectively2), B (terylene hydro-entangled non-woven fabric, grammes per square metre
80g/m2), C (terylene hydro-entangled non-woven fabric, grammes per square metre 100g/m2)
Sample A is cut into the rectangle of 24 ㎝ × 15cm, is loaded into plastic packaging bag and is placed in 36 DEG C of thermostat water baths；
(2) water of 36 DEG C of 500mL is added into the test cup 1-2 of test module 1, covers cup lid 1-2-1, sealing test
Cup 1-2；Test cup 1-2 is fitted into plastic packaging bag and is placed in 36 DEG C of thermostat water baths；
(3) start blender 1-1, adjust rotating speed；Log-on data transmits adjustment module 2 and data processing and output module 3
Test software, set gathered data time interval and data preserve path；Whole device is preheated 10 so that test cup
Water temperature in 1-2 is 36 DEG C；
(4) after preheating, sample is completely encapsulated on the outside of the wall of cup 1-2-2 of test cup, and is fixed with rubber band, then
Test module 1 is placed in ultra low temperature freezer (- 40 DEG C of temperature)；Data transfer adjustment module 2 and data processing and output template 3
It is placed under room temperature environment；
(5) after 30min, test module 1 is taken out from ultra low temperature freezer, sample is removed on test cup 1-2, is closed
Blender 1-1 and data transfer adjustment module 2；Data processing and output module 3 analyze water maintenance in test cup 1-2 in 30min
36 DEG C of power consumptions consumed；Sample A experiment three times is carried out respectively, records the power consumption Q of consumptionSurvey A1、QSurvey A2、QSurvey A3；
Obtain QSurvey A1、QSurvey A2、QSurvey A3Average value QSurvey A, with QSurvey ASize reflection Sample A experiment when the power consumption that consumes.
Sample B, C are tested respectively by Sample A step, obtain Q respectivelySurvey B、QSurvey C。
3rd, the evaluation of sample heat-insulating property：
Sample heat-insulating property is calculated by formula 1：
In formula：I is warming rate under sample low temperature environment；QIt is emptyFor the power consumption of blank test consumption；QSurveyConsumed for specimen test
Power consumption.The thermal property under cryogenic conditions by testing three kinds of different grammes per square metre fabrics, and calculate it is that its I is obtained the result is that：A
Warming rate be 18.86%；The warming rate of B is 30.75%；The warming rate of C is 39.39%.At low ambient temperatures, identical fibre
Under conditions of dimension, same process, the non-woven cloth flocculus of preparation is with the increase of grammes per square metre, warming rate increase, thermal property raising.
The present invention does not address part and is suitable for the prior art.
Claims (8)
1. textile thermal property test device under a kind of low temperature environment, it is characterised in that the device includes test module, data
Transmit adjustment module and data processing and output module；
The test module includes blender, test cup, stirring rod, temperature sensor and heater；The test cup is integrally close
Envelope；Stirring rod, temperature sensor and heater are placed inside the test cup；Stirring rod is connected with blender；
The data transfer adjustment module is made of PID adjusting apparatus and heating power adjuster；The PID adjusting apparatus is passed with temperature
Sensor connects；The heating power adjuster is connected with heater；The PID adjusting apparatus respectively with heating power adjuster and add
Thermal power adjuster connects.
2. textile thermal property test device under low temperature environment according to claim 1, it is characterised in that the test
Cup is hollow straight tube shape；Test cup is made of cup lid, wall of cup and bottom of a cup, and wall of cup is connected with bottom of a cup, and cup lid is detachable and middle part
It is provided with through hole.
3. textile thermal property test device under low temperature environment according to claim 1, it is characterised in that the test
Cup is made of pure copper material, and cup body effective depth is 148mm, and interior diameter 72mm, wall of cup and bottom of a cup thickness are 2mm, cup lid and cup
Mouth is concordant, keeps sealing；The through hole that cup lid center is provided with a diameter of 7mm is used for stirring rod by away from central through hole both sides 10mm
The through hole that place is respectively provided with a diameter of 5mm respectively passes through for conducting wire.
4. textile thermal property test device under low temperature environment according to claim 1, it is characterised in that the heating
Device is electric heating tube, heating rod or heating wire.
5. textile thermal property test device under low temperature environment according to claim 1, it is characterised in that bottom of a cup and cup
Lid coating thermal insulating layer.
6. textile thermal property test device under low temperature environment according to claim 5, it is characterised in that described heat-insulated
Dope layer is aeroge coating, coating layer thickness 5mm.
7. textile thermal property test device under low temperature environment according to claim 1, it is characterised in that the data
Processing and output module are the computers for being provided with data processing software labview.
8. the test method of textile thermal property under a kind of low temperature environment, it is characterised in that this method comprises the following steps：
The first step, into line blank test：
（1）Liquid is added into the test cup of test module, covers cup lid, sealing test cup；Test cup is placed in set temperature
In the thermostat water bath identical with body temperature；
（2）Start blender；Log-on data transmits adjustment module and data processing and output module；Whole device is preheated and is caused
Fluid temperature stabilization in test cup is in body temperature；
（3）After preheating, test module is placed in low temperature environment；Data transfer adjustment module and data processing and output mould
Plate is placed in room temperature environment；
（4）After being come into full contact with low temperature environment, test module is taken out from low temperature environment, closes blender and data transfer tune
Save module；The liquid that data processing and output module analysis are placed in low temperature environment test cup this period maintains body temperature institute
The power consumption Q of consumptionIt is empty；
Second step, carry out specimen test：
（1）Sample is cut into the size identical with wall of cup, is placed on the set temperature thermostat water bath identical with body temperature
In；
（2）Liquid is added into the test cup of test module, covers cup lid, sealing test cup；Test cup is placed in set temperature
In the thermostat water bath identical with body temperature；
（3）Start blender；Log-on data transmits adjustment module and data processing and output module；Whole device is preheated and is caused
Fluid temperature stabilization in test cup is in body temperature；
（4）After preheating, sample is completely encapsulated on the outside of the wall of cup of test cup and fixed, then test module is placed in and sky
In the identical low temperature environment of white test temperature；Data transfer adjustment module and data processing and output template are placed on room temperature environment
In；
（5）It is identical with blank test with the time of contact of low temperature environment, then test module is taken out from low temperature environment, will be tried
Sample is removed in test cup, closes blender and data transfer adjustment module；Data processing and output module analysis are placed in low temperature
Liquid in environment test cup this period maintains the power consumption Q that body temperature is consumedSurvey；
3rd step, the evaluation of sample heat-insulating property：
Sample heat-insulating property is calculated by formula 1：
（1）
In formula：I is warming rate under sample low temperature environment；QIt is emptyFor the power consumption of blank test consumption；QSurveyFor the work(of specimen test consumption
Consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031314.6A CN107957433B (en) | 2018-01-12 | 2018-01-12 | Device and method for testing thermal insulation performance of textile in low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031314.6A CN107957433B (en) | 2018-01-12 | 2018-01-12 | Device and method for testing thermal insulation performance of textile in low-temperature environment |
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| CN107957433A true CN107957433A (en) | 2018-04-24 |
| CN107957433B CN107957433B (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095206A (en) * | 2019-05-21 | 2019-08-06 | 浙江大学 | A kind of the temperature of rotor measurement simulation system and method for low-temperature centrifugation formula fluid machinery |
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| CN103675018A (en) * | 2013-10-10 | 2014-03-26 | 天津工业大学 | Fabric thermal property tester |
| CN203758944U (en) * | 2014-03-28 | 2014-08-06 | 嘉兴市产品质量监督检验所 | Textile heat-accumulating and heat-preserving performance tester |
| CN207850963U (en) * | 2018-01-12 | 2018-09-11 | 天津工业大学 | Textile thermal property test device under a kind of low temperature environment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095206A (en) * | 2019-05-21 | 2019-08-06 | 浙江大学 | A kind of the temperature of rotor measurement simulation system and method for low-temperature centrifugation formula fluid machinery |
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