CN101846453B - Furnace for testing limit of fire resistance of tunnel fire-proof protective material - Google Patents
Furnace for testing limit of fire resistance of tunnel fire-proof protective material Download PDFInfo
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- CN101846453B CN101846453B CN2010101705393A CN201010170539A CN101846453B CN 101846453 B CN101846453 B CN 101846453B CN 2010101705393 A CN2010101705393 A CN 2010101705393A CN 201010170539 A CN201010170539 A CN 201010170539A CN 101846453 B CN101846453 B CN 101846453B
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Abstract
The invention relates to a furnace for testing the limit of fire resistance of a tunnel fire-proof protective material, which is characterized in that when a sample is tested, the sample is covered at the top of a furnace body, and a burning device is placed at the bottom of the sample to be used for heating the sample. The furnace body comprises a furnace lining, short-flame burners, a sample clamping and turning device and a cellular heat absorbing board, wherein the furnace lining in a modular structure is arranged in a furnace shell; the cellular heat absorbing board is arranged at the opening part of the bottom of the furnace shell; the cellular heat absorbing board is connected with a water-cooled multi-tube cooler; the sample clamping and turning device is arranged at one side of the furnace shell; the internal dimension of the furnace lining is matched with the external boundary dimension of the sample; and a plurality of temperature thermocouples and the short-flame burners are sequentially arranged in the furnace lining from top to bottom. The invention has the advantages that (1) the sample is arranged at the top of a furnace chamber and is reasonably heated, thereby reducing the fuel consumption and enabling the transverse temperature of the furnace chamber to be more uniform and stable; (2) the corner-type electric sample clamping and turning device is adopted, thereby relieving the labor intensity of experimenters and ensuring that the experiment operating process is more simple, more convenient and more reliable; and (3) the flue gas emission temperature reaches the specified emission standard.
Description
Technical field
The present invention relates to building element experiment field, relate in particular to a kind of furnace for testing limit of fire resistance of tunnel fire-proof protective material.
Background technology
In recent years, be accompanied by the continuous progress of China's economic construction, living standards of the people increase substantially, building industry has also obtained the development of advancing by leaps and bounds, various types of building structural members are along with science and technology development emerges in an endless stream, the steel building member is widely adopted in China's industry, civil buildings because of its normal temperature strength height, from heavy and light, characteristics such as manufacturing is easy, speed of application is fast, plasticity and toughness are good.Though but the steel in the steel building member are not flammable bodies, but not fire-resistant, intensity descends very fast when bearing temperature reaches 250 ℃, being heated, intensity reduces about 50% when reaching 350 ℃, intensity descends more than 80% in the time of 500 ℃, thereby under the high temperature of fire effect, steel construction dangerous sharp increase of collapsing.For effectively preventing fire, reduce fire damage, selecting for use not only of construction material will be satisfied non-combustible, more to satisfy fire resistance, in architectural design and work progress, use the non-combustible material as far as possible, component surface is plastered or is sprayed the fireproof paint that thermal conductivity factor is low, the thermal radiation resistant ability is strong, can improve the fire endurance and the fire resistance rating of building element so effectively, reduce the fire prevention investment, also provide possibility for rescue after the calamity.
For accurately differentiating the fire endurance and the fire resistance rating of various different kinds of building members, the building element fire test furnace is widely used in construction unit, building institute (institute) and building universities and colleges.This experimental furnace is in order to detect under the standard fire test condition; the fire endurance of building element; be fire stability, fire integrity and fire insulation; belong to the comprehensive experimental furnace of serial building element, body of heater is bigger, generally from tens to tens cubic metres of dischargeable capacitys; the gas quantity that experimentation needs is big; and the test specimen of furnace for testing limit of fire resistance of tunnel fire-proof protective material has the unique texture characteristics, the detection mode that single face is heated, and according to following documentation requirements:
1, " purchases the reply of feasibility study report about Science Institute of portion road and bridge and traffic safety facilities quality supervision and test new technical equipment ", Planning Division of Department of Transportation, 2009.11;
2, " National Program for Medium-to Long-term Scientific and Technological Development 2006-2020 ", State Council, 2006.2;
3, " highway water transportation science and technology development strategy ", Ministry of Communications, 2005.1;
4, " science and technology development planning of highway water transportation Eleventh Five-Year Plan ", Ministry of Communications, 2006.2;
5, " 2004-2010 of Research Institute of Highway, Ministry of Communications development planning outline ", Research Institute of Highway, Ministry of Communications, 2003.9;
6, " the traffic safety laboratory planning 2006-2010 of Research Institute of Highway, Ministry of Communications ", Research Institute of Highway, Ministry of Communications traffic safety laboratory, 2005.12;
7, GA 98-2005 " xoncrete structure fireproof paint ";
8, GB/T 9978.1-2008 " building element fire resistance test method part 1: general requirement ";
9, GA/T 741-2007 " member with flameproof protection material be rapidly heated fire resistance test method ";
10, the relevant rudimentary data that provides of Int. of Highway Sciences, Ministry of Communications.
Summary of the invention
The purpose of this invention is to provide a kind of furnace for testing limit of fire resistance of tunnel fire-proof protective material, adopt the bottom single face to be subjected to hot mode, the automatic loading and unloading sample is heated evenly, fuel saving, easy to operate.
For solving the problems of the technologies described above, technical scheme of the present invention is:
Furnace for testing limit of fire resistance of tunnel fire-proof protective material; it is characterized in that; during test; sample is sealed on the body of heater top; burner is in the heating of sample bottom; body of heater comprises furnace shell; furnace lining; short flame burner; temperature thermocouple; the sample holder turning device; cellular absorber plate; the water-cooled multitube cooler; be provided with the modular structure furnace lining in the furnace shell; furnace shell bottom opening place is provided with cellular absorber plate; cellular absorber plate is connected with the water-cooled multitube cooler; the sample holder turning device is arranged on furnace shell one side, and furnace lining inside dimension and sample exterior contour size are complementary, and furnace lining inside is provided with some temperature thermocouples and short flame burner from top to bottom successively.
Fill in the described furnace lining and contain zircon ceramic fibrofelt module.
Described cellular absorber plate is a ceramic honeycomb absorber material.
Described sample holder turning device comprises sample clamping plate, turnover bracket, motor, rotating shaft, bearing, bearing is arranged on body of heater one side, turnover bracket one end is hinged on the bearing by rotating shaft, and the turnover bracket other end is provided with the sample clamping plate, and roller end is connected with motor.
Compared with prior art, the invention has the beneficial effects as follows: 1) chamber structure is reasonable, greatly reduces the firing rate in the experimentation under guaranteeing the long-pending prerequisite of sample effective heating surface; 2) furnace lining all adopts and contains zirconium fibrofelt modular structure, and the heat-insulating property excellence shortens heating cycle greatly, and energy savings has reduced experimental cost; 3) sample adopts the working method that the bottom surface is heated, and has reduced the vortex flow district of burner hearth cross section in the combustion process, guarantees that the burner hearth transverse temperature is more uniform and stable; 4) has laid and has had the good cellular heat storage of thermal resistance performance at body of heater bottom surface temperature exhaust gases passes mouth place on the low side, has reduced the heat loss, has improved the burner hearth bottom temperature, has reduced the burner hearth vertical temperature difference; 5) for guaranteeing that smog discharge temperature can reach the discharge standard of regulation, bottom of furnace body has been installed the water-cooled multi-pipe heat exchanger; 6) adopt the electronic sample holder turning device of corner formula, alleviated experimenter's labour intensity, guarantee that the experimental implementation process is easier to be reliable.
Description of drawings
Fig. 1 is that the present invention is at fire endurance experimental state structural representation;
Fig. 2 is that the present invention is at loading and unloading sample status architecture schematic diagram.
Among the figure: the cellular absorber plate 5-of 1-furnace body support 2-water-cooled multitube cooler 3-grate plate 4-furnace shell 6-furnace lining 7-high alumina pillar 8-short flame burner 9-temperature thermocouple 10-fireproof paint layer 11-sealing fibrofelt 12-sample 13-sample clamping plate 14-turnover bracket 15-temperature thermocouple 16-motor 17-rotating shaft 18-short flame burner 19-sample holder turning device 20-bearing 21-heat exchanger tube 22-flue gas guide plate 23-cooling water 24-exhanst gas outlet
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
See Fig. 1; furnace for testing limit of fire resistance of tunnel fire-proof protective material of the present invention; it is tailored version detection body of heater at the design of tunnel fire proofing protective material; body of heater is arranged on the furnace body support 1; this furnace binding design has following characteristics: during test; sample 12 is sealed on the body of heater top; short flame burner heats in sample 12 bottoms; body of heater comprises furnace shell 5; furnace lining 6; short flame burner 8; short flame burner 18; temperature thermocouple 9; temperature thermocouple 15; sample holder turning device 19; cellular absorber plate 4; water-cooled multitube cooler 2; be provided with modular structure furnace lining 6 in the furnace shell 5; furnace shell 5 bottom opening places are provided with cellular absorber plate 4; cellular absorber plate 4 is connected with water-cooled multitube cooler 2; sample holder turning device 19 is arranged on furnace shell 5 one sides; furnace lining 6 inside dimensions and sample 12 exterior contour sizes are complementary; furnace lining 6 inside evenly are provided with temperature thermocouple 9 from top to bottom successively; temperature thermocouple 15 and short flame burner 8; short flame burner 18; according to the different temperature thermocouples of body of heater specification; short flame burner quantity difference; high alumina pillar 7 separates short flame burner and furnace lining, avoids high temperature that furnace lining is damaged.Be filled with in the described furnace lining 6 and contain zircon ceramic fibrofelt module, the heat-insulating property excellence shortens heating cycle greatly, and energy savings has reduced experimental cost.Described cellular absorber plate 4 is a ceramic honeycomb absorber material, is laid on bottom of furnace body temperature exhaust gases passes mouth place on the low side, and it has the good characteristics of thermal resistance performance, has reduced the heat loss, has improved the burner hearth bottom temperature, has reduced the burner hearth vertical temperature difference.
Described sample holder turning device 19 comprises sample clamping plate 13, turnover bracket 14, motor 16, rotating shaft 17, bearing 20, bearing 20 is arranged on body of heater one side, turnover bracket 14 1 ends are hinged on the bearing 20 by rotating shaft 17, turnover bracket 14 other ends are provided with sample clamping plate 13, rotating shaft 17 ends are connected with motor 16, turnover bracket 14 can 17 overturn 180 ° under the driving of motor 16 around the shaft, conveniently assemble and disassemble sample 12, alleviated experimenter's labour intensity, guaranteed that the experimental implementation process is easier to be reliable.
See Fig. 2; turnover bracket 14 17 has overturn 180 ° around the shaft under the driving of motor 16; tunnel fire proofing protective material sample 12 is installed on the specimen splint 13; and fireproof paint layer 10 is set on sample 12 surfaces; clamp specimen splint 13; drive motors 16 then; turnover bracket 14 is overturn 180 ° counterclockwise; make sample 12 be sealed on the body of heater top; with sealing fibrofelt 11 slit between sample 12 and the furnace lining 6 is clogged; can open short flame burner 8; short flame burner 18 carries out the fire endurance test, and temperature thermocouple 9 and temperature thermocouple 15 detect temperature in the stove at any time, guarantees that temperature is controlled by desired temperature increasing schedule in the stove.
The flue gas that burning the produces cellular absorber plate on grate plate 34 earlier absorbs heat, flue-gas temperature is reduced, continue heat exchanger tube 21 heat-shifts then through water-cooled multitube cooler 2, make cooling water 23 intensifications in the heat exchanger tube 21 reclaim a part of heat, discharge out of the furnace by exhanst gas outlet 24 by flue gas guide plate 22 at last.
Claims (4)
1. furnace for testing limit of fire resistance of tunnel fire-proof protective material; it is characterized in that; during test; sample is sealed on the body of heater top; burner is in the heating of sample bottom; body of heater comprises furnace shell; furnace lining; short flame burner; temperature thermocouple; the sample holder turning device; cellular absorber plate; the water-cooled multitube cooler; be provided with the modular structure furnace lining in the furnace shell; furnace shell bottom opening place is provided with cellular absorber plate; cellular absorber plate is connected with the water-cooled multitube cooler; the sample holder turning device is arranged on furnace shell one side, and furnace lining inside dimension and sample exterior contour size are complementary, and furnace lining inside is provided with some temperature thermocouples and short flame burner from top to bottom successively.
2. furnace for testing limit of fire resistance of tunnel fire-proof protective material according to claim 1 is characterized in that, fills in the described furnace lining to contain zircon ceramic fibrofelt module.
3. furnace for testing limit of fire resistance of tunnel fire-proof protective material according to claim 1 is characterized in that, described cellular absorber plate is a ceramic honeycomb absorber material.
4. furnace for testing limit of fire resistance of tunnel fire-proof protective material according to claim 1; it is characterized in that; described sample holder turning device comprises sample clamping plate, turnover bracket, motor, rotating shaft, bearing; bearing is arranged on body of heater one side; turnover bracket one end is hinged on the bearing by rotating shaft; the turnover bracket other end is provided with the sample clamping plate, and roller end is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101705393A CN101846453B (en) | 2010-05-13 | 2010-05-13 | Furnace for testing limit of fire resistance of tunnel fire-proof protective material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101705393A CN101846453B (en) | 2010-05-13 | 2010-05-13 | Furnace for testing limit of fire resistance of tunnel fire-proof protective material |
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| CN101846453A CN101846453A (en) | 2010-09-29 |
| CN101846453B true CN101846453B (en) | 2011-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105637354A (en) * | 2013-10-15 | 2016-06-01 | 美国石膏公司 | Fire resistance performance prediction method of wallboard |
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| CN104181187A (en) * | 2014-07-23 | 2014-12-03 | 中国人民武装警察部队学院 | Tester and test method for fire resistance of expansion fireproof paint |
| CN106226350A (en) * | 2016-08-30 | 2016-12-14 | 江苏金秋竹集团有限公司 | A kind of biological shielding door fire resistance test device and fire resistance test method |
| CN106442162A (en) * | 2016-11-18 | 2017-02-22 | 盐城工学院 | Heating device and heating monitoring device |
| CN106442605A (en) * | 2016-11-25 | 2017-02-22 | 桂林永福龙港绿色环保建材有限公司 | Detection device of fireproof plate |
| CN107085006A (en) * | 2017-05-26 | 2017-08-22 | 华侨大学 | Tunnel roof fire resistance test device and method of testing |
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| CN115201262A (en) * | 2022-09-19 | 2022-10-18 | 南通千家惠新材料科技发展有限公司 | Novel surface performance detects for insulation material research and development device |
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| CN100485358C (en) * | 2006-03-31 | 2009-05-06 | 华南理工大学 | Assembled refractory experimental furnace of building construction member |
| CN101430319A (en) * | 2008-12-08 | 2009-05-13 | 哈尔滨工业大学 | Fireproof tester used for single layer framework measurement |
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2010
- 2010-05-13 CN CN2010101705393A patent/CN101846453B/en not_active Expired - Fee Related
Patent Citations (3)
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| CN2070443U (en) * | 1990-03-06 | 1991-01-30 | 中国建筑科学研究院建筑防火研究部 | Foldable multi-function elements fire-resistant test furnace |
| CN100485358C (en) * | 2006-03-31 | 2009-05-06 | 华南理工大学 | Assembled refractory experimental furnace of building construction member |
| CN101430319A (en) * | 2008-12-08 | 2009-05-13 | 哈尔滨工业大学 | Fireproof tester used for single layer framework measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105637354A (en) * | 2013-10-15 | 2016-06-01 | 美国石膏公司 | Fire resistance performance prediction method of wallboard |
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| CN101846453A (en) | 2010-09-29 |
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Granted publication date: 20110907 Termination date: 20180513 |