CN101819171A - Test device for radiant heat resistance of fabrics - Google Patents
Test device for radiant heat resistance of fabrics Download PDFInfo
- Publication number
- CN101819171A CN101819171A CN201010148341.5A CN201010148341A CN101819171A CN 101819171 A CN101819171 A CN 101819171A CN 201010148341 A CN201010148341 A CN 201010148341A CN 101819171 A CN101819171 A CN 101819171A
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- heating rod
- radiant heat
- copper
- test device
- copper coin
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
Abstract
The invention discloses a test device for radiant heat resistance of fabrics, and belongs to the field of safety technology. The test device comprises a radiative heat source, a copperplate calorimeter and a data acquisition system, wherein the radiative heat source consists of two silicone carbide heating rod sets and a resistor; each silicone carbide heating rod set comprises a plurality of silicone carbide heating rods which generate thermal radiation after being electrified; in a circuit, the silicone carbide heating rod sets are formed by serially connecting the silicone carbide heating rods, and the two parallelly connected silicone carbide heating rod sets are connected in series with the resistor and then connected to a 220V power supply; a copper-constantan thermocouple is welded in the center of the internal surface of the arc of a copperplate and then connected to an acquisition card through a through hole at an assembling block; the copperplate is glued to the assembling block through a bonding agent; the data acquisition system consists of the acquisition card and a computer, wherein the acquisition card acquires a temperature signal of the copper-constantan thermocouple and then inputs the temperature signal into the computer for data processing and computation, and the like. The test device is used for testing the radiant heat resistance of the fabrics, has the characteristics of reasonable structure, accurate test and strong operability, and can meet the requirements of the radiant heat resistance tests for the fabrics.
Description
Technical field
The invention belongs to the safety technique field, be specifically related to a kind of test device for radiant heat resistance of fabrics.
Background technology
The radiation heat that the fireman runs into when putting out a fire operation can cause from minor injury to dead danger as surpassing the ability to bear of Human Physiology normal equilibrium process.Heat in the scene of a fire is propagated to the external world with conduction, convection current and three kinds of modes of radiation, and wherein heat radiation is the main factor that damages.Therefore the protective fire fighters' clothing to adorn the penetrating quality of anti radiant heat performance be the key technical index that the decision protective fire fighters' clothing adorns the barrier propterty quality.
At present, foreign technology advanced country has all made according to ISO 6942-2002 " protective clothing for proximity fire fighting method of testing---material and sandwich construction heat resistanceheat resistant radiation permeance property test " standard design and has been used for the protective fire fighters' clothing and adorns test device for radiant heat resistance, but it is comparatively expensive to introduce this test unit price.Stipulated the penetrating quality of anti radiant heat method for testing performance of fireman's protective clothing for proximity fire fighting in China GA 634-2006 " fireman's protective clothing for proximity fire fighting " standard, the penetrating quality of anti radiant heat performance test that is used for fireman's protective clothing for proximity fire fighting is put.In order to obtain accurate test figure checking protective fire fighters' clothing's barrier propterty, be necessary to refer to ISO 6942-2002 standard, development meets the test device for radiant heat resistance of fabrics of China's actual needs.
Summary of the invention
The object of the present invention is to provide a kind of carborundum heating rod energising generation heat radiation that utilizes, by a kind of test device for radiant heat resistance of fabrics of thermocouple measurement envers temperature variation.
Test device for radiant heat resistance of fabrics provided by the invention is made up of radiant heat source, copper coin calorimeter and data acquisition system (DAS) three parts, wherein:
Radiant heat source is made up of two carborundum heating rod groups 1 and a resistance 2, the energising back produces heat radiation, carborundum heating rod group 1 is composed in series by some carborundum heating rods, in parallel between two carborundum heating rod groups 1, again with after resistance 2 is connected, be connected on the power supply of 220V, carborundum heating rod group 1 is fixed on the support 8;
The copper coin calorimeter is made of copper coin 3, copper-constantan thermocouple 4 and assembling block 5, copper-constantan thermocouple 4 is welded on the center of copper coin 3 circular arc inside surfaces, the through hole that lead on the copper coin 3 passes on the assembling block 5 is connected on the capture card 6, and copper coin 3 adheres on the assembling block 5 by cementing agent;
Data acquisition system (DAS) is made of capture card 6 and computing machine 7, and computing machine 7 connects capture card 6;
Radiant heat source is aimed at the convex surface of calorimetric copper coin 3 circular arcs of copper coin.
Among the present invention, the carborundum heating rod of described each carborundum heating rod group 1 is the 3-4 root, is connected in series, the length overall of every silit heating rod is 356mm ± 4mm, and diameter is 8.0mm ± 0.2mm, and resistance value is 15 Ω～19 Ω, the arrangement pitch of adjacent carborundum heating rod is 6-8mm
Among the present invention, the resistance of described resistance 2 is 1 Ω, and power is 5kW～9kW.
Among the present invention, the copper content of described copper coin 3 is not less than 99%, and thickness is 2.0mm, is of a size of 50mm * 50.3mm, and prolonging the long spring of 50.3mm, to become radius be the circular arc of 130mm, chord length 50mm.The weight of copper coin 3 is 36g ± 1g.
Among the present invention, the diameter of described copper-constantan thermocouple 4 is 0.3mm～1mm.
Among the present invention, described assembling block 5 adopts calcium silicate board to make, and density is 1300kg/m
3± 50kg/m
3, pyroconductivity is 0.08W/ (mk) ± 0.02W/ (mk), is of a size of 90mm * 90mm, thickness is 25mm.Assembling block 5 end faces are arc surface, and diameter is about 130mm, and a rectangular opening is opened at the center of end face.Rectangular opening is of a size of 50mm * 46mm, hole depth 10mm.Prolong limit, the hole fluting of the 46mm length of side, groove depth 1mm, wide 2mm.Open the through hole of a diameter 3mm at rectangular opening bottom center place.
The course of work of the present invention is as follows:
Carborundum heating rod group 1 energising back produces heat radiation in the radiant heat source, fabric is covered copper coin calorimeter surface, make fabric face accept the heat radiation of radiant heat source, by the 4 test fabric back temperatures of the copper-constantan thermocouple on the copper coin calorimeter, and be converted into millivolt signal and be transported in the capture card 6, by computing machine 7 records and calculate radiation heat flux.
Function of the present invention is used for test fabric penetrating quality of anti radiant heat performance.
The present invention has following conspicuous characteristics and advantage compared with the prior art: the present invention adopts the carborundum heating rod as thermal source, and the thermal value height adopts the high-power resistance dividing potential drop, makes the both end voltage of carborundum heating rod stable, makes test condition stable.Package unit has rational in infrastructure, tests accurate, workable characteristics, can meet the requirement of the penetrating quality of anti radiant heat performance test of fabric.
Description of drawings
Fig. 1 is a structural diagrams of the present invention.
Fig. 2 is that embodiment 1 carborundum heating rod group is arranged synoptic diagram.Wherein: (a) being front view, (b) is vertical view.
Fig. 3 is embodiment 1 carborundum heating rod group and resistance circuit figure.Wherein: (a) being way circuit figure, (b) is carborundum heating rod group circuit diagram.
Fig. 4 is a copper coin calorimeter structural representation.Wherein: (a) being front view, (b) is vertical view.
Fig. 5 is the data acquisition system (DAS) synoptic diagram.
Number in the figure: 1 is the carborundum heating rod, and 2 is resistance, and 3 is copper coin, and 4 is copper-constantan thermocouple, and 5 is assembling block, and 6 is capture card, and 7 is computing machine, and 8 is support.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment 1: this test device for radiant heat resistance of fabrics is made up of radiant heat source, copper coin calorimeter and data acquisition system (DAS) three parts.
As shown in Figures 2 and 3, radiant heat source is made up of two carborundum heating rod groups 1 and a resistance 2, and carborundum heating rod group 1 energising back produces heat radiation.Carborundum heating rod group 1 includes 6 carborundum heating rods, and per three are one group and are connected in series, and adopts in parallelly between two groups, with after resistance 2 is connected, is connected on the power supply of 220V again.
As shown in Figure 4, the copper coin calorimeter is made of copper coin 3, copper-constantan thermocouple 4 and assembling block 5.Be used to measure the fabric sample back temperature.Copper-constantan thermocouple 4 is welded on the center of copper coin 3 circular arc inside surfaces, is connected on the capture card by the through hole on the assembling block 5.Copper coin 3 adheres on the assembling block 5 by cementing agent.
As shown in Figure 5, data acquisition system (DAS) is made of capture card 6 and computing machine 7, is used for functions such as thermocouple signal acquisition, data processing.
The length overall of carborundum heating rod is 356mm in the carborundum heating rod group 1.Diameter is 8.0mm.Six roots of sensation carborundum heating rod resistance value is respectively 15.4 Ω, 17.6 Ω, 17.8 Ω, 16.9 Ω, 18.5 Ω, 18.2 Ω.The arrangement pitch of six roots of sensation carborundum heating rod is 7mm.
The resistance of resistance 2 is 1 Ω, and power is 6.5kW.
The copper content of copper coin 3 is 99.9%, and thickness is 2.0mm, is of a size of 50mm * 50.3mm, and prolonging the long spring of 50.3mm, to become radius be the circular arc of 130mm, chord length 50mm.The weight of copper coin 3 is 36.6g.
The diameter of copper-constantan thermocouple 4 is 0.3mm.
Assembling block 5 adopts calcium silicate board to make, and density is 1300kg/m3 ± 50kg/m3, and pyroconductivity is 0.074W/ (mk), is of a size of 90mm * 90mm, and thickness is 25mm.From the assembling block end face is arc surface, and diameter is about 130mm, and a rectangular opening is opened at the center of end face.Rectangular opening is of a size of 50mm * 46mm, hole depth 10mm.Prolong limit, the hole fluting of the 46mm length of side, groove depth 1mm, wide 2mm.Open the through hole of a diameter 3mm at rectangular opening bottom center place.
Claims (5)
1. a test device for radiant heat resistance of fabrics is made up of radiant heat source, copper coin calorimeter and data acquisition system (DAS) three parts.It is characterized in that:
Radiant heat source is made up of two carborundum heating rod groups (1) and a resistance (2), the energising back produces heat radiation, carborundum heating rod group (1) is composed in series by some carborundum heating rods, in parallel between two carborundum heating rod groups (1), again with after resistance (2) is connected, be connected on the power supply of 220V, carborundum heating rod group (1) is fixed on the support (8);
The copper coin calorimeter is made of copper coin (3), copper-constantan thermocouple (4) and assembling block (5), copper-constantan thermocouple (4) is welded on the center of copper coin (3) circular arc inside surface, the through hole that lead on the copper coin (3) passes on the assembling block (5) is connected on the capture card (6), and copper coin (3) adheres on the assembling block (5) by cementing agent;
Data acquisition system (DAS) is made of capture card (6) and computing machine (7), and computing machine (7) connects capture card (6);
Radiant heat source is aimed at the convex surface of the calorimetric copper coin of copper coin (3) circular arc.
2. test device for radiant heat resistance of fabrics according to claim 1, the carborundum heating rod that it is characterized in that described each carborundum heating rod group (1) is the 3-4 root, be connected in series, the arrangement pitch of adjacent carborundum heating rod is 6-8mm, the resistance value of every silit heating rod is 15 Ω～19 Ω, and diameter is 8.0mm ± 0.2mm.
3. test device for radiant heat resistance of fabrics according to claim 1, the resistance that it is characterized in that described resistance (2) is 1 Ω, power is 5kW～9kW.
4. test device for radiant heat resistance of fabrics according to claim 1 is characterized in that the copper content of described copper coin (3) is not less than 99%, and thickness is 2.0mm, is of a size of 50mm * 50.3mm, and weight is 36g ± 1g.
5. test device for radiant heat resistance of fabrics according to claim 1, the diameter that it is characterized in that described copper-constantan thermocouple (4) is 0.3mm～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101483415A CN101819171B (en) | 2010-04-15 | 2010-04-15 | Test device for radiant heat resistance of fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101483415A CN101819171B (en) | 2010-04-15 | 2010-04-15 | Test device for radiant heat resistance of fabrics |
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| Publication Number | Publication Date |
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| CN101819171A true CN101819171A (en) | 2010-09-01 |
| CN101819171B CN101819171B (en) | 2012-06-06 |
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| CN2010101483415A Active CN101819171B (en) | 2010-04-15 | 2010-04-15 | Test device for radiant heat resistance of fabrics |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004755A (en) * | 2015-07-11 | 2015-10-28 | 江苏丹毛纺织股份有限公司 | Tester for testing temperature of fabric or fabric under illumination |
| CN107290385A (en) * | 2017-06-09 | 2017-10-24 | 公安部上海消防研究所 | Helmet flame resistance energy test device and its method of testing |
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2010
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| CN1074126C (en) * | 1994-11-24 | 2001-10-31 | 刘奇 | Computerized multifunction heat transfer parameter measuring instrument |
| CN2285470Y (en) * | 1997-04-24 | 1998-07-01 | 西北纺织工学院 | Instrument for investigating fabric radiation-resistant thermal property |
| CN2331970Y (en) * | 1997-11-28 | 1999-08-04 | 山东省纺织科学研究院 | Instrument for determining textile thermal radiation property |
| JP2003337111A (en) * | 2002-05-17 | 2003-11-28 | Japan Synthetic Textile Inspection Inst Foundation | Method and apparatus for testing hygroscopic and exothermic property |
| US6971792B2 (en) * | 2003-10-09 | 2005-12-06 | Fm Global Technologies Llc | Device and method for measuring absorbed heat flux in a fire test apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004755A (en) * | 2015-07-11 | 2015-10-28 | 江苏丹毛纺织股份有限公司 | Tester for testing temperature of fabric or fabric under illumination |
| CN107290385A (en) * | 2017-06-09 | 2017-10-24 | 公安部上海消防研究所 | Helmet flame resistance energy test device and its method of testing |
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| Publication number | Publication date |
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| CN101819171B (en) | 2012-06-06 |
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