CN101936933A - Device for testing open fire prevention and heat insulation performance of fabric - Google Patents
Device for testing open fire prevention and heat insulation performance of fabric Download PDFInfo
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Abstract
The invention relates to a device for testing the open fire prevention and heat insulation performance of fabric, which comprises a thermal cavity, a specimen holder, a fire scene generation device, a gas source, a temperature measurement device and a data acquisition processing unit. The device generates a high-temperature high-heat flow open fire scene environment by the gas source and the fire scene generation device; a fabric specimen is placed in the environment; the temperatures of the front and back of the fabric specimen change under the function of high temperature and high heat; the temperature measurement device online measures the change of the temperatures of the front and back of the fabric specimen with exposure time in real time; and the data acquisition processing unit records the curve of the temperature change with the time in real time so as to analyze and represent the open fire prevention and heat insulation performance and temperature isolation behavior of the fabric. The device has the characteristics of high testing efficiency, stable and reliable working performance, operation repeatability, simple operation, wide application range and the like, and can be used for the test and inspection of the long-term thermal protection performance and temperature isolation behavior of the fabric in the open fire scene environment.
Description
Technical field
The present invention relates to the security against fire technical field of measurement and test, particularly relate to the proving installation of anti-naked light heat-insulating property of a kind of fabric and the isolated behavior of temperature.
Background technology
The current method of testing that is used for the performance test of fabric fire-proof heat-insulating mainly is to adopt every method of testing of burning performance of fabric method of testing and fabric thermal protective performance.The burning performance of fabric method of testing; comprise normal beam technique (GB5455-1997), horizontal method, oxygen index method (GB/T 5454-1997), 45 ° of gradient methods and smoke density method etc.; the gained index only can be expressed the fire retardancy of fabric; be beyond expression fabric in the environment of high temperature heat-flash filariasis field to the heat resist performance of high temperature and Gao Re and to the protective capability of human body skin, the performance comparison under specific environment detects at the flammable of specific environment and different fabrics so can only be used for test fabric.
The thermal protective performance method of testing mainly comprises TPP (ThermalProtective Performance) method (ISO 17492-2003, ASTM F2700-08) and the combustion dummy man method of testing (ISO13506-2008, ASTM F1930-00) of heat radiation barrier propterty test RPP (Radiation ProtectivePerformance) method (ISO 6942-2002, ASTM F2702-08), the comprehensive thermal protective performance of reflection.Two kinds of method of testings of RPP, TPP act on fabric with the different thermals source that is tending towards stable state respectively in certain distance, adopt the copper pipe calorimeter to measure and cause the needed time of human body skin second-degree burn, estimate the thermal protective performance of fire-fighting suit; The combustion dummy man method of testing is the model with the human body size, impose the controlled burning test rapidly of laboratory simulation condition, the thermal sensor that distributes on one's body by manikin, measurements and calculations see through tested clothes and are transmitted to the heat and the temperature at each position of human body surface, thereby learn the clothes on the manikin heat that stops and the degree that reduces skin burn of being worn in.The thermal protective performance proving installation of domestic clothes or fabric, LFY-607 fabric thermal protection (radiation) ability meter of the proving installation described in CN 200510024922.7, Shandong Textile research institute and the CSI-206 thermal protective performance tester of clothes institute of Donghua University, more than two kinds of testers all adopt the identical test philosophy of method of testing with RPP method, TPP method.
In the above thermal protective performance method of testing time of fabric under thermal source exposes all very short, only several seconds to tens seconds; In addition, the thermal protective performance method of testing all is by adopting Henriques skin burn integral model and Stoll burn criterion to predict that human body skin reaches the time of second degree burns, thereby weigh the quality of fabric thermal protective performance, the gained time also only limited to tens seconds.This shows, though the thermal protective performance method of testing worldwide is widely used, but still can't characterize the long-time thermal protective performance of fabric in the environment of high temperature heat-flash filariasis field, the heat insulation permanance of fabric in the high thermal environment of high temperature promptly is beyond expression.
At present both at home and abroad for want of necessary research technique and can't test and check the fire-proof heat-insulating kind fabric accurately and efficiently to the isolation performance of the high heat of high temperature and serious day by day to the problem of the barrier propterty of human body, therefore need a kind of energy real simulation scene of a fire high temperature heat-flash stream environment badly, and can accurately measure the fire-proof heat-insulating performance testing device of the long-time heat insulation permanance of fabric.
Summary of the invention
Technical matters to be solved by this invention provides the anti-naked light heat-insulating property proving installation of a kind of fabric, solves the problem that current shortage test unit is used to test the long-time heat insulation and stability of fire-fighting class fire-proof heat-insulating fabric.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of fabric to prevent naked light heat-insulating property proving installation, comprise hot cavity, specimen mounting, scene of a fire generating means, fuel gas source, temperature measuring equipment and data acquisition process unit, described hot cavity comprises thermofin, bracing frame, air channel, fixed card slot and cylindrical hole; Described thermofin is the ectonexine nested structure, and wherein, skin is a rectangular structure, and internal layer is a cylindrical structure, adopts heat-barrier material to fill between the ectonexine; Described bracing frame is fixed on the bottom of the outer rectangular parallelepiped of thermofin; Described fixed card slot is positioned at the position that described hot cavity takes over; Described fixed card slot each side is provided with a cylindrical hole; Described air channel is opened between the described thermofin ectonexine, is positioned at the left side of described fixed card slot, and leads to described hot cavity outside; Described specimen mounting is welded by two-layer holding frame and steel clip, forms two-layer hollow structure, and hollow space is rounded; Described specimen mounting is installed in the described fixed card slot; Described scene of a fire generating means is placed on the left side of described hot cavity; Described scene of a fire generating means links to each other with described fuel gas source; Described temperature measuring equipment is inserted in the described hot cavity, and the position can move adjusting, is used to test the temperature of fire scene temperature field and each position of fabric pros and cons; Described data acquisition process unit comprises interconnective temperature data acquisition converter and computing machine; Described temperature data acquisition converter links to each other with described temperature measuring equipment.
Described scene of a fire generating means comprises spray gun, spray gun wireway, wireway support, spherical guide and guiderail base; Described fuel gas source comprises fuel cartridge and rubber hose; Described guiderail base is provided with described spherical guide; Described spherical guide is marked with scale; Described wireway support is installed on the described spherical guide; Described spray gun wireway is installed on the described wireway support; The output terminal of described spray gun wireway links to each other with described spray gun, and input end links to each other with the output terminal of fuel cartridge by described rubber hose; The input end of described spray gun wireway is provided with Switch of spray pistol; The output of described fuel cartridge is provided with barometric damper.
The length of flame that described scene of a fire generating means produces is that 10～30cm, width are that 2～6cm, temperature are 800 ℃～1200 ℃, meets fire-fighting emergent rescue actual conditions; The combustion gas that described fuel gas source uses is liquefied gas or coal gas or rock gas.
Described temperature measuring equipment comprises that second temperature sensor of two positive and negative surface temperatures when being used for measuring first temperature sensor that temperature field, the hot cavity scene of a fire distributes, two and being used to measure fabric side to the scene of a fire and one are used to measure the three-temperature sensor that the envers temperature field distributes; Described first temperature sensor is placed in the described thermofin internal layer right cylinder by the first pipe support, and is positioned at the left side of described fixed card slot; Described second temperature sensor is placed in the cylindrical hole of the described fixed card slot left and right sides by the second pipe support; Described three-temperature sensor is placed in the described thermofin internal layer right cylinder by the 3rd pipe support, and is positioned at the right side of described fixed card slot; The position of described first temperature sensor, second temperature sensor and three-temperature sensor is regulated according to the situation of actual measurement.
Described air channel is an annular; Described air channel inner ring is provided with equally distributed six cylindrical holes, and these six cylindrical holes communicate with described thermofin internal layer right cylinder; Top, outer ring, described air channel is provided with a cylindrical channel, and this cylindrical channel passes the outer rectangular parallelepiped of described thermofin and directly passes to described hot cavity outside, to guarantee the direct contact fabric surface of flame energy in the test process, avoids forming airbond.
Described heat-barrier material is heat insulation mineral wool material, and adopts detachable cover formula structure to be enclosed in the described thermofin.
Described thermofin is made by metal material; Described holding frame is made by metal material.
Described first temperature sensor, second temperature sensor and three-temperature sensor are the fast K type thermopair of response speed, sample frequency is adjustable, measuring accuracy is ± 1 ℃, and by the fire prevention clay be fixed in the described pipe support, realize the heat insulation protection under the hot environment, it can be worked for a long time.
Described data acquisition process unit is adjusted the data acquisition parameter by Control Software, real-time online displays temperature-time curve.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the present invention compared with prior art has following advantage and good effect:
(1) realized that effectively naked light scene of a fire high temperature heat-flash flows the real simulation of environment; (2) adopt temperature sensor response speed fast, sample frequency is adjustable, satisfies job requirement for a long time under the high thermal environment of high temperature; (3) online data shows in real time, can accurately characterize the anti-naked light heat-insulating property of fabric and to the thermal protective performance of human body; (4) test can be set according to different testing requirementss, makes the applicability of this device more extensive; (5) simple to operate, Repeatability and Reproducibility is good.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention;
Fig. 2 is a hot cavity body structure synoptic diagram of the present invention;
Fig. 3 is a specimen mounting structural representation of the present invention;
Fig. 4 is a scene of a fire of the present invention generating means synoptic diagram;
Fig. 5 is a fuel gas source synoptic diagram of the present invention;
Fig. 6 is temperature sensor of the present invention and pipe support synoptic diagram;
Fig. 7 is a data acquisition process cell schematics of the present invention;
Fig. 8 is an air channel cross sectional representation in the hot cavity of the present invention;
Fig. 9 is flame middle part, the naked light field temperature-time plot of simulating in the hot cavity of the present invention;
Figure 10 is that the present invention adopts fiberglass aluminum foil fabric fire-proof heat-insulating performance test temperature-time plot;
Figure 11 is that the present invention adopts positive and negative average surface temperature synoptic diagram when being tending towards stable state in the woven test process;
Figure 12 is that the present invention adopts positive and negative average surface temperature synoptic diagram when being tending towards stable state in the multiply cloth test process.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiments of the present invention relate to the anti-naked light heat-insulating property proving installation of a kind of fabric, as shown in Figure 1, comprise hot cavity 1, specimen mounting 2, scene of a fire generating means 3, fuel gas source 4, temperature measuring equipment 5 and data acquisition process unit 6.Described hot cavity 1 comprises thermofin 11, bracing frame 12, air channel 13, fixed card slot 14 and cylindrical hole 15 as shown in Figure 2.Described thermofin 11 is made (as stainless steel) by metal material, be the ectonexine nested structure, wherein, skin is a rectangular structure, common outer rectangular structure specification is long 70cm * wide 40cm * high 40cm, and internal layer is a cylindrical structure, and internal layer cylindrical structure specification is bottom surface diameter 20cm * long 70cm, adopt heat-barrier material to fill between the ectonexine and be detachable enclosed construction, prevent the radial diffusion of the hot-fluid of scene of a fire generation along hot cavity.Described bracing frame 12 is fixed on the bottom of thermofin 11 outer rectangular parallelepipeds, is used for the fixing of hot cavity 1 relative height.Described fixed card slot 14 is positioned at the position that described thermofin 11 internal layer right cylinders take over, and is arranged on 9～10cm place, right side usually, and its specification is long 20cm * wide 1cm * dark 20cm, is used for the insertion of specimen mounting 2.Described fixed card slot 14 each side is provided with a cylindrical hole 15, the variation of positive and negative surface temperature when being used to insert second temperature sensor, 52 test fabric in the face of the scene of a fire.Described air channel 13 is opened between described thermofin 11 ectonexines, be positioned at the left side (being usually located at 1cm place, fixed card slot left side) of described fixed card slot 14, and lead to described hot cavity 1 outside, to guarantee the direct contact fabric surface of flame energy in the test process, avoid forming airbond.Described specimen mounting 2 as shown in Figure 3, be welded by double layer of metal (as stainless steel) holding frame 22 and steel clip 23, form two-layer hollow structure, hollow space is rounded, this circle inner and outer diameter is respectively 18cm and 20cm, owing to the effect of steel clip 23, specimen mounting 2 forms self-locking structures after fabric sample 21 is put into hollow space.Described specimen mounting 2 is installed in the described fixed card slot 14; Described scene of a fire generating means 3 is placed on the left side of described hot cavity 1; Described scene of a fire generating means 3 links to each other with described fuel gas source 4; Described temperature measuring equipment 5 can be inserted in the described hot cavity 1, and position-movable adjusting, the temperature that is used to test each position; The data of temperature measuring equipment 5 are gathered and write down in described data acquisition process unit 6.
As shown in Figure 4, described scene of a fire generating means 3 comprises spray gun 31, spray gun wireway 32, wireway support 33, spherical guide 34 and guiderail base 35.As shown in Figure 5, described fuel gas source 4 comprises fuel cartridge 41 and rubber hose 43.Guiderail base 35 is provided with spherical guide 34, wireway support 33 is installed on spherical guide 34, spray gun wireway 32 is installed on wireway support 33, and the output terminal of spray gun wireway 32 links to each other with spray gun 31, and input end links to each other with the output terminal of fuel cartridge 41 by rubber hose 43.By the height of wireway support 33 fixing whole scene of a fire generating meanss 3, move along the axle center of hot cavity 1 with the assurance flame kernel, thereby in box house formation temperature field symmetrically.Spherical guide 34 is marked with scale, and movably scope is set to 0～60cm usually, can realize the test and the check of the anti-naked light heat-insulating property of fabric under the flame different distance condition.Input end at spray gun wireway 32 is provided with Switch of spray pistol 36; Output at fuel cartridge 41 is provided with barometric damper 42.Wherein, the length of flame that scene of a fire generating means 3 produces is that 10～30cm, width are that 2～6cm, temperature are 800 ℃～1200 ℃, realize the real simulation of naked light scene of a fire high temperature heat-flash stream environment, and flame size can be regulated by the barometric damper 42 of fuel cartridge 4 output terminals, distance between flame and the fabric can be regulated by wireway support 33 translation on spherical guide 34, thereby is suitable for the test of the anti-naked light heat-insulating property of fabric under the different fire field environments.The combustion gas that described fuel gas source 4 uses is liquefied gas or coal gas or rock gas.
As shown in Figure 6, described temperature measuring equipment 5 comprises that second temperature sensor 52 of two positive and negative surface temperatures when being used for measuring temperature field, the hot cavity scene of a fire distributes first temperature sensor 51, two and being used to measure fabric side to the scene of a fire and one are used to measure the three-temperature sensor 53 that the envers temperature field distributes.Described first temperature sensor 51 is placed in the described thermofin 11 internal layer right cylinders by the first pipe support, and is positioned at the left side of described fixed card slot 14; Described second temperature sensor 52 is placed in the cylindrical hole 15 of described fixed card slot 14 left and right sides by the second pipe support; Described three-temperature sensor 53 is placed in the described thermofin 11 internal layer right cylinders by the 3rd pipe support, and is positioned at the right side of described fixed card slot 14.The position of described first temperature sensor 51, second temperature sensor 52 and three-temperature sensor 53 can be according to the situation of actual measurement by the mobile position that is adjusted to the needs test of pipe support separately, to test each locational temperature over time.So can characterize the fire insulation performance of fabric and to the quality of the thermal protective performance of human body according to the data analysis of each temperature sensor.Wherein, each temperature sensor is the fast K type thermopair of response speed; measuring accuracy is ± 1 ℃; sample frequency is adjustable; and by the fire prevention clay be fixed in the described pipe support; realize the thermal insulation protection under the hot environment, thereby can under hot environment, work long hours, so can accurately measure the heat insulation stability of fabric in fire field environment.As shown in Figure 7, described data acquisition process unit 6 comprises interconnective temperature data acquisition converter 61 and computing machine 62, described temperature data acquisition converter 61 links to each other with each sensor in the described temperature measuring equipment 5, can realize that by Control Software the control of data acquisition and test process, computing machine 62 can realize that the real-time online of diverse location place temperature-time curve in the fire field environment shows.
As shown in Figure 8, described air channel 13 is an annular, generally its inner and outer diameter is respectively 26cm and 32cm, described air channel 13 inner rings are provided with equally distributed six cylindrical holes (its bottom surface diameter is 2cm usually), these six cylindrical holes communicate with described thermofin 11 internal layer right cylinders, top, 13 outer ring, described air channel is provided with a cylindrical channel (its bottom surface diameter is 3cm usually), this cylindrical channel passes described thermofin 11 outer rectangular parallelepipeds and directly passes to described hot cavity 1 outside, thereby in test process, can form effective heat passage, avoided the generation of thermal boundary between flame and the fabric, guaranteed that fabric can closely contact with flame.
Anti-naked light heat-insulating property testing experiment can be set the test duration as the case may be, generally the scene of a fire working time can be set at 2～10min, can determine voluntarily cool time, guarantee that temperature sensor is in the omnidistance work of test, each test point temperature of real time record is change curve in time, thereby analyzes the quality that obtains the anti-naked light heat-insulating property of fabric.Its concrete steps are as follows: (1) opens the barometric damper of fuel cartridge, and regulates and suitably light a fire, and detects air supply system and scene of a fire generating means and whether is in serviceable condition; (2) Control Software is opened in start-up temperature acquisition process unit, makes temperature sensor work 3～5min, and warranty test at room temperature carries out; (3) specimen is put into specimen mounting, specimen mounting is inserted the fixed card slot of hot cavity, adjust the temperature sensing measurement mechanism to the appropriate location; (4) fight with flame move to rapidly the appropriate location begin the test and the acquisition and recording data; (5) close scene of a fire generating means and keep image data until the test setting-up time; (6) natural cooling is 30 minutes, makes proving installation recover virgin state to carry out test next time.
Test by experimental technique with glass fibre aluminium foil fabric, basalt fibre fire-proof fabric, fiberglass needled mat, several fabrics of basalt fibre Nomex and compound fabric thereof, the basic parameter of fabric sample is as shown in table 1.
The basic parameter of table 1 Thermal Protective Fabric sample
Flame middle part, the naked light field temperature of at first fuel gas buring being simulated is carried out three tests (time that the scene of a fire acts on temperature sensor is got two kinds of 180s and 300s) with temperature sensor, and probe temperature-time curve as shown in Figure 9.As can be seen, the temperature at scene of a fire flame middle part is at 900 ℃～1000 ℃, and the stabilization sub stage curve is basically parallel to X-axis, illustrates that fire scene temperature is basicly stable.
Then the anti-naked light heat-insulating property of several fabrics is tested, the test process of every kind of fabric continues 15min herein, scene of a fire work 5min wherein, the test result of gained is respectively shown in Figure 10 (temperature time curve of A2 sample testing process), Figure 11 (positive and negative average surface temperature when being tending towards stable state in the woven test process) and Figure 12 (positive and negative average surface temperature when being tending towards stable state in the multiply cloth test process).By test result is compared analysis, can estimate the quality of each fabric fire-proof heat-insulating performance.
For the test of woven and compound fabric,, be example (shown in Figure 10) only with the test result of sample A2 because test result is similar herein.As can be seen from Figure 10, each test point temperature raise rapidly in several seconds and tends towards stability, and illustrated that temperature sensor response is rapid; After extinguished in the scene of a fire, each test point temperature descended rapidly and tends towards stability, and the sensor sensing sensitivity is described.By the analysis-by-synthesis of test, the temperature that can draw flame middle part is at 900 ℃～1100 ℃, and the temperature of flame head end is at 700 ℃～900 ℃, thus the fire scene temperature scope at 700～1100 ℃, by the suitable control to air flow valve, fire scene temperature is basicly stable.
Claims (9)
1. a fabric is prevented naked light heat-insulating property proving installation, comprise hot cavity (1), specimen mounting (2), scene of a fire generating means (3), fuel gas source (4), temperature measuring equipment (5) and data acquisition process unit (6), it is characterized in that described hot cavity (1) comprises thermofin (11), bracing frame (12), air channel (13), fixed card slot (14) and cylindrical hole (15); Described thermofin (11) is the ectonexine nested structure, and wherein, skin is a rectangular structure, and internal layer is a cylindrical structure, adopts heat-barrier material to fill between the ectonexine; Described bracing frame (12) is fixed on the bottom of the outer rectangular parallelepiped of thermofin (11); Described fixed card slot (14) is positioned at the position that described hot cavity (1) takes over; Described fixed card slot (14) each side is provided with a cylindrical hole (15); Described air channel (13) is opened between described thermofin (11) ectonexine, is positioned at the left side of described fixed card slot (14), and leads to described hot cavity (1) outside; Described specimen mounting (2) is welded by two-layer holding frame (22) and steel clip (23), forms two-layer hollow structure, and hollow space is rounded; Described specimen mounting (2) is installed in the described fixed card slot (14); Described scene of a fire generating means (3) is placed on the left side of described hot cavity (1); Described scene of a fire generating means (3) links to each other with described fuel gas source (4); Described temperature measuring equipment (5) is inserted in the described hot cavity (1), and the position can move adjusting, is used to test the temperature of fire scene temperature field and each position of fabric pros and cons; Described data acquisition process unit (6) comprises interconnective temperature data acquisition converter (61) and computing machine (62); Described temperature data acquisition converter (61) links to each other with described temperature measuring equipment (5).
2. fabric according to claim 1 is prevented naked light heat-insulating property proving installation, it is characterized in that described scene of a fire generating means (3) comprises spray gun (31), spray gun wireway (32), wireway support (33), spherical guide (34) and guiderail base (35); Described fuel gas source (4) comprises fuel cartridge (41) and rubber hose (43); Described guiderail base (35) is provided with described spherical guide (34); Described spherical guide (34) is marked with scale; Described wireway support (33) is installed on the described spherical guide (34); Described spray gun wireway (32) is installed on the described wireway support (33); The output terminal of described spray gun wireway (32) links to each other with described spray gun (31), and input end links to each other by the output terminal of described rubber hose (43) with fuel cartridge (41); The input end of described spray gun wireway (32) is provided with Switch of spray pistol (36); The output of described fuel cartridge (41) is provided with barometric damper (42).
3. fabric according to claim 1 and 2 is prevented naked light heat-insulating property proving installation, it is characterized in that, the length of flame that described scene of a fire generating means (3) produces is that 10～30cm, width are that 2～6cm, temperature are 800 ℃～1200 ℃; The combustion gas that described fuel gas source (4) uses is liquefied gas or coal gas or rock gas.
4. fabric according to claim 1 is prevented naked light heat-insulating property proving installation, it is characterized in that described temperature measuring equipment (5) comprises second temperature sensor (52) and three-temperature sensor (53) that is used to measure the distribution of envers temperature field of two positive and negative surface temperatures when being used for measuring first temperature sensor (51) that temperature field, the hot cavity scene of a fire distributes, two and being used to measure fabric side to the scene of a fire; Described first temperature sensor (51) is placed in described thermofin (11) the internal layer right cylinder by the first pipe support, and is positioned at the left side of described fixed card slot (14); Described second temperature sensor (52) is placed in the cylindrical hole (15) of described fixed card slot (14) left and right sides by the second pipe support; Described three-temperature sensor (53) is placed in described thermofin (11) the internal layer right cylinder by the 3rd pipe support, and is positioned at the right side of described fixed card slot (14); The position of described first temperature sensor (51), second temperature sensor (52) and three-temperature sensor (53) is regulated according to the situation of actual measurement.
5. fabric according to claim 1 is prevented naked light heat-insulating property proving installation, it is characterized in that described air channel (13) are annular; Described air channel (13) inner ring is provided with equally distributed six cylindrical holes, and these six cylindrical holes communicate with the internal layer right cylinder of described thermofin (11); Top, outer ring, described air channel (13) is provided with a cylindrical channel, and this cylindrical channel passes the outer rectangular parallelepiped of described thermofin (11) and directly passes to described hot cavity (1) outside.
6. fabric according to claim 1 is prevented naked light heat-insulating property proving installation, it is characterized in that, described heat-barrier material is heat insulation mineral wool material, and adopts detachable cover formula structure to be enclosed in the described thermofin (11).
7. fabric according to claim 1 is prevented naked light heat-insulating property proving installation, it is characterized in that described thermofin (11) is made by metal material; Described holding frame (22) is made by metal material.
8. fabric according to claim 4 is prevented naked light heat-insulating property proving installation, it is characterized in that, described first temperature sensor (51), second temperature sensor (52) and three-temperature sensor (53) are the fast K type thermopair of response speed, sample frequency is adjustable, measuring accuracy is ± 1 ℃, and is fixed in the described pipe support by the fire prevention clay.
9. fabric according to claim 1 is prevented naked light heat-insulating property proving installation, it is characterized in that described data acquisition process unit (6) is adjusted the data acquisition parameter by Control Software, real-time online displays temperature-time curve.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU200001U1 (en) * | 2020-03-10 | 2020-10-01 | Федеральное государственное бюджетное образовательное учреждение высшего образования Балтийский государственный технический университет "ВОЕНМЕХ" им. Д.Ф. Устинова (БГТУ "ВОЕНМЕХ") | FIRE PROTECTION FABRIC TEST STAND |
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| US7216068B2 (en) * | 2001-04-24 | 2007-05-08 | The Hong Kong Polytechnic University | Digitized thermal functional design of textiles and clothing |
| CN201503406U (en) * | 2009-10-14 | 2010-06-09 | 东华大学 | Improved flat plate instrument for testing thermal performance of fabric |
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| CN113049735A (en) * | 2021-03-11 | 2021-06-29 | 国网江苏省电力有限公司电力科学研究院 | Power cable flame retardant performance field detection method |
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