CN207528671U - A kind of high-temperature flame-proof test device for fire proofing material - Google Patents
A kind of high-temperature flame-proof test device for fire proofing material Download PDFInfo
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- CN207528671U CN207528671U CN201721661011.XU CN201721661011U CN207528671U CN 207528671 U CN207528671 U CN 207528671U CN 201721661011 U CN201721661011 U CN 201721661011U CN 207528671 U CN207528671 U CN 207528671U
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- furnace body
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- proofing material
- fire proofing
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Abstract
A kind of high-temperature flame-proof test device for fire proofing material provided by the utility model includes test furnace, and test furnace includes furnace body.Wherein, the inner cavity of furnace body is equipped with electric-heating-wire-heating device；The upper end of furnace body is open, and the top of furnace body is equipped with sample test platform.The lower end of sample test platform is equipped with notch；Support column is provided on sample test platform, crossbeam is equipped with above support column, crossbeam is equipped with thermal imaging system.The side wall of furnace body is equipped with thermocouple, air inlet and air outlet, and thermocouple is arranged on the lower section of sample test platform, and air inlet is located at the lower section of air outlet.The outside of test furnace is equipped with electrical control cabinet.Electric-heating-wire-heating device, thermal imaging system and thermocouple are electrically connected with electrical control cabinet.The utility model is rational in infrastructure, can all-sidedly and accurately test a variety of fire proofing material fire endurance performances.
Description
Technical field
The utility model is related to a kind of go-no-go test equipments for fire proofing material, and in particular to one kind is used for fire proofing material
High-temperature flame-proof test device.
Background technology
The agent structure of building is mainly the combination of concrete structure and steel construction at present.The main body knot of building in itself
Though structure is non-combustible, not fire resisting.For example, intensity declines quickly when temperature suffered by the reinforcing bar in concrete structure reaches 250 DEG C,
Heated strength reduction about 50% when reaching 350 DEG C, intensity declines more than 80% at 500 DEG C.Under high temperature of fire effect, reinforcing bar mixes
The danger of concretio building collapsing increases severely.Steel construction has blue shortness phenomenon at 300 DEG C or so, the intensity between 450 DEG C to 650 DEG C
Drastically decline, lose bearing capacity, steel construction can collapse at this time.Thus under the high temperature action of fire, concrete structure or
The dangerous sharp increase that steel construction collapses.
In order to which effective fire preventing is damaged caused by building, by the body structure surface of building smear thermal conductivity factor it is low,
The strong fire proofing material of thermal radiation resistant ability.The fire resistance rating of building, therefore, the fire prevention to building can be effectively improved in this way
The data test of material fire endurance is particularly important.
Common test method is the regulation according to GB28375-2012 and GB14907-2002 and carries out.Used survey
Trial assembly, which is put, includes furnace body and the burner in furnace body, and test sample smears fire proofing material and is placed in the top of furnace body
And compressed with asbestos pressing plate, it is equipped with thermocouple above the side wall of furnace body, the centre of asbestos pressing plate sets that there are one thermocouples, utilizes heat
Galvanic couple reads and records the temperature rise curve of the test sample under high-temp combustion state, finds out the fire endurance of test sample.
Since using thermocouple temperature measurement, temperature spot test can only be carried out, it is impossible to the fire resisting of the accurate fire proofing material of analysis comprehensively
Performance.In addition, without air agitation inside test furnace, if sample after heating can normal expansion, even if expansion strength is not
It is enough, also due to can also be tested in stove without air agitation, test sample by fire endurance.In addition, burner is because of combustion
Burning can generate toxic gas, not meet present environmentally friendly mainstream.
Therefore, it is necessary to design a kind of high temperature side trial assembly that can all-sidedly and accurately test fire proofing material fire endurance performance
It puts.
Invention content
It in view of the deficiencies of the prior art, can be comprehensively accurate the purpose of this utility model is to provide a kind of rational in infrastructure
The high-temperature test device of fire proofing material fire endurance performance is tested on ground.
To achieve the above object, it is provided by the utility model a kind of to include for the high-temperature flame-proof test device of fire proofing material
Test furnace, test furnace include furnace body.Wherein, the inner cavity of furnace body is equipped with electric-heating-wire-heating device；The upper end of furnace body is open, and stove
The top of body is equipped with sample test platform.The lower end of sample test platform is equipped with notch；Support column is provided on sample test platform, is supported
Crossbeam is equipped with above column, crossbeam is equipped with thermal imaging system.The side wall of furnace body is equipped with thermocouple, air inlet and air outlet, and thermocouple is set
It puts in the lower section of sample test platform, air inlet is located at the lower section of air outlet.The outside of test furnace is equipped with electrical control cabinet.Heating wire
Heating unit, thermal imaging system and thermocouple are electrically connected with electrical control cabinet.
Preferably, furnace body is rectangular.
Preferably, the supporting rack for being used to support the furnace body is equipped with below furnace body.
Preferably, thermocouple uses zirconium boride composite ceramics pyrometer couple.
Preferably, air intake pump and spill valve are equipped with outside test furnace.Air intake pump is connected to air inlet, air intake pump by air hose
Air intake valve is provided on air hose between air inlet.Spill valve is connected to air outlet, spill valve and air outlet by air hose
Between air hose on be provided with outlet air valve.
Preferably, it is additionally provided with air pressure dial gauge on the air hose between outlet air valve and spill valve.
Preferably, the cross section of the notch on sample test platform is rectangle.
Preferably, the center line overlap of the center line of the notch on sample test platform and thermal imaging system.
Preferably, the side wall of furnace body and bottom wall are equipped with insulation interlayer.
Preferably, the side wall of furnace body is additionally provided with furnace chamber peephole.
The beneficial effects of the utility model are：Using the thermal imaging of thermal imaging system, read test sample is acquired in real time
State of temperature under combustion state, the surface temperature of test sample makes face test by a test, so as to obtain test sample
The change of temperature field information of whole surface.Traditional burner is replaced using electric-heating-wire-heating device, can be obtained in higher stove
Temperature and in-furnace temperature be controllable and environmental protection.Pyrometer couple can measure characteristic of the fire proofing material in high-temperature region.Test furnace increases
If air inlet and air outlet, test furnace is made to increase the factor of air agitation.By adjusting devices such as air intake pump, overflow valves,
Different furnace inner environments can be simulated, the internal environment of test furnace is more nearly real high temperature of fire environment, improves sample test
As a result accuracy.
Description of the drawings
Fig. 1 is a kind of structure diagram of high-temperature flame-proof test device for fire proofing material of the utility model.
Fig. 2 is the structure diagram of electric-heating-wire-heating device shown in FIG. 1.
Fig. 3 is the present invention looks up structural representation of a-quadrant shown in FIG. 1.
The utility model is described in further detail with reference to the accompanying drawings and embodiments.In order to which the present embodiment is better described,
The certain attachmentes of attached drawing have omission, zoom in or out；To those skilled in the art, in attached drawing certain known features and
It illustrates to omit will be understood by.
Specific embodiment
A kind of high-temperature flame-proof test device for fire proofing material of the utility model is with GB28375-2012 and GB14907-
Technical conditions as defined in 2002 are foundation, and are developed with reference to China's national situation.The utility model can be used for a variety of fire proofing materials
Fire resisting is tested, such as the fire resisting test of steel structure fireproofing material, the fire resisting of concrete structure fire proofing material test etc..
Referring to Fig. 1 to Fig. 3, include test furnace for the high-temperature flame-proof test device of fire proofing material, test furnace includes furnace body
1, furnace body 1 is designed as rectangular.The lower section of furnace body 1 also has additional the support frame of furnace body 32 for being used to support the furnace body 1.1 frame of furnace body
It is located above supporting rack 32, is conducive to keep the stabilization of test furnace internal temperature in this way, test furnace is avoided to make stove due to heat transfer
Interior heat losses are to ground.In addition, in order to be further reduced the heat losses of test furnace, the side wall and bottom wall of furnace body 1 are all provided with
There is insulation interlayer 2.
The inner cavity of furnace body 1 is provided with electric-heating-wire-heating device, and electric-heating-wire-heating device includes the first terminals of heating wire 26
With the second terminals 27, more heating wire 28 are connected between the first terminals 26 and the second terminals 27, as shown in Figure 2.Electric heating
Silk 28 can generate the high temperature more than 2000 DEG C, and the inner cavity of furnace body 1 is heated to 2000 DEG C or higher.
The upper end of furnace body 1 is open, and the top of furnace body 1 is equipped with sample test platform 20, under the middle of sample test platform 20
End is equipped with the notch that cross section is rectangle, as shown in figure 3, Fig. 3 is the bottom-up structure chart seen from sample test platform 20.It surveys
Test agent 10 is placed on the top of sample test platform 20, and test sample 10 here can be coated with the steel construction survey of fire proofing material
Test agent is either coated with fire proofing material concrete structure test sample.When test sample 10 is placed on the upper of sample test platform 20
Fang Hou, the top of test sample 10 are provided with one piece for compressing the heat-insulated pressing plate 11 of test sample 10, heat-insulated pressing plate 11 and sample
The shape of product fixed platform 11 is consistent, and centre is again provided with an equal-sized notch.Sample test platform 20 passes through anchoring piece
Reinforcing modes is waited to be arranged on the top of furnace body 1, such sample test platform 20 can bear heavy weight test sample, such as concrete
Test specimen.The top of sample test platform 10 is opposite to be equipped with two support columns 12, and the top of support column 12 is fixed with crossbeam 13, crossbeam
13 are equipped with thermal imaging system 14, and the notch of 14 face sample test platform of thermal imaging system, 20 middle.In this way, thermal imaging system 14 can obtain
To the change of temperature field information at the entire back side of test sample of the indentation, there of sample test platform 20.
The side wall of furnace body 1 is equipped with the thermocouple 21 for testing read test furnace chamber temperature, and thermocouple 21 is arranged on sample
The lower section of product testboard 20.Thermocouple 21 is using the zirconium boride that can be surveyed more than 2000 DEG C（ZrB2）Composite ceramics high temperature resistant thermoelectricity
It is even.Thermocouple 21 can carry out temperature spot test to 10 fire surface of test sample, and test sample 10 is carried out with reference to thermal imaging system 14
Temperature surfaces are tested, and the experiment analysis results of fire resisting test are more objective and accurate, comprehensive.
In order to make the environment in stove closer to actual environment, air inlet 22 and air outlet 23 are provided on the side wall of furnace body 1.
Air inlet 22 is located at the underface of air outlet 23.Support column 33 is provided with outside test furnace, support column 33 is equipped with air intake pump 221 above
With spill valve 231.Air intake pump 221 is connect by air hose with air inlet 22, and on the air hose between air intake pump 221 and air inlet
It is additionally provided with air intake valve 222.Spill valve 231 is connect by air hose with air outlet 23, and spill valve 231 and air outlet 23 it
Between air hose on be additionally provided with outlet air valve 232.In addition, it is additionally provided on air hose between spill valve 231 and outlet air valve 232
Air pressure dial gauge 233.Air intake pump 221, spill valve 231 and air pressure dial gauge 233 form a set of conditioner.According to air pressure
The display information of dial gauge 233 adjusts air intake pump 221, spill valve 231, thus it is possible to vary the air flowing and air pressure in stove are big
Size increases air agitation factor, so as to simulate the furnace inner environment close to actual environment, makes experimental results more accurate
Really.The side wall of furnace body 1 is additionally provided with furnace chamber peephole 25, and furnace chamber peephole 25 is mounted on the lower section of thermocouple 21.
The outside of test furnace is equipped with supporting table 30, and 30 top of supporting table is equipped with electrical control cabinet 31, thermal imaging system 14, thermoelectricity
Idol 21 and electrothermal wire heating's device are electrically connected with electrical control cabinet 31, electrical control cabinet 31 and external computer（In figure not
It shows）Electrical connection.Multigroup test data of experiment of test sample 10 and corresponding image information are transmitted by electrical control cabinet 31
It shows to external computer and on computers.In addition, can electric-heating-wire-heating device be adjusted by electrical control cabinet 31
Heating temp, so as to adjust the temperature field inside test furnace.
Embodiment one
According to the technical standard of GB14907-2002, the present embodiment tests the fire resistance of steel structure fireproofing material.This reality
It applies example and selects square sheet metal base material, steel plate thickness 8mm.The test of steel structure fireproofing material fire resistance includes the following steps:
1. make test sample.Steel plate is machined to the size for being suitble to sample test platform 20, according to the operation of fire proofing material
Flow uniformly coats the steel structure fireproofing material of 5mm thickness in the one side of steel plate.
2. test sample is dried.Steel construction test sample is placed in ventilated drying oven and is dried.
3. test sample is installed.Steel construction test sample is mounted on 20 top of sample test platform, coating is face-down, and
The upper heat-insulated pressing plate 11 of top pressure of test sample.
4. test sample fire resisting is tested.According to testing requirement, the power of electrothermal wire heating's device is adjusted.Open air intake pump
221 with spill valve 231, the air flow condition in regulating stove.
5. record experimental data.The temperature of the fire surface of record steel construction test sample is read using thermocouple 21, is utilized
Thermal imaging system 14 reads the temperature field in the fiery face of the record steel construction test sample back of the body.
6. analysis of experimental data.According to the fire surface of test sample 10 and the temperature relation in the fiery face of the back of the body, existing point is utilized
Analysis method analyzes the fire endurance of steel structure fireproofing material.The temperature in the fiery face of the steel construction test sample back of the body is more than 560 DEG C, fire prevention
Material loses fire resistance, the temperature of the steel construction test sample fire surface i.e. steel structure fireproofing material measured at this time by thermocouple
Fire endurance.
Embodiment two
According to the technical standard of GB28375-2012, the present embodiment tests the fire resistance of concrete structure fire proofing material.
The present embodiment chooses strength grade and meets C30 tunnels concrete slab as defined in GB50010, and the thickness of concrete slab is 150mm,
Bottom surface thickness of protection tier is 25mm.Concrete fireproof material fire resistance test process is as follows：
1. make precast concrete.According to the size of sample test platform 20, precast concrete is made, while in reinforcing bar
Four test points on the upper and lower surface of protective layer all assign 4 thermocouples, the lead leakage of thermocouple in advance.
2. make concrete test sample.Precast concrete is placed in ventilated drying oven and is dried, and according to fire proofing material
Application technique the concrete structure fire proofing material of 5mm thickness is uniformly coated in the one side of precast concrete, air-dry fire proofing material
Coating.
3. concrete test sample is installed.Concrete test sample is mounted on 20 top of sample test platform, coat side court
Under, and the heat-insulated pressing plate 11 in the pressure of the top of concrete test sample, while the thermocouple of cover to reinforcement is connected with conducting wire
To electrical control cabinet 31.
4. the fire resisting of concrete test sample is tested.According to testing requirement, the power of electrothermal wire heating's device is adjusted.It opens
Air intake pump 221 and spill valve 231, the air flow condition in regulating stove.
5. record experimental data.The temperature of record concrete test sample fire surface is read using thermocouple 21, utilizes heat
As the temperature field in the fiery face of the record monitoring concrete test sample back of the body of instrument 14, reinforcing bar guarantor is read using the thermocouple in cover to reinforcement
Multiple temperature spots of sheath.
6. analysis of experimental data.According to concrete test sample fire surface and the temperature relation in the fiery face of the back of the body, utilization is existing
Analysis method analyzes the fire endurance of concrete structure fire proofing material.When the temperature that concrete test sample carries on the back fiery face is more than 380
DEG C or any temperature measuring point of cover to reinforcement temperature be more than 250 DEG C, fire proofing material loses fire resistance.Concrete test sample
A relatively low temperature is the fire resisting of concrete structure fire proofing material among two corresponding at this time temperature values of product fire surface
The limit.Such as the temperature in the concrete test sample back of the body fiery face, when being 380 DEG C, the temperature of concrete test sample fire surface is 2000
℃；When the temperature of concrete test sample cover to reinforcement temperature measuring point is 250 DEG C, the temperature of concrete test sample fire surface is
1950℃.Then, the fire endurance temperature of concrete structure fire proofing material is 1950 DEG C.
The above is only the preferred embodiment of the present invention, is not intended to limit the invention.The utility model may be used also
To be applied to the test of the fire resistance of other fire proofing materials, such as facing type material, fire resisting stripping etc..It is all in the utility model
Within spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the scope of protection of the utility model
Within.
Claims (10)
1. a kind of high-temperature flame-proof test device for fire proofing material, including test furnace, the test furnace includes furnace body, feature
It is：
The inner cavity of the furnace body is equipped with electric-heating-wire-heating device；The furnace body upper end is open, and the top of the furnace body is equipped with sample
Testboard, the lower end of the sample test platform are equipped with notch；Support column is provided on the sample test platform, on the support column
Side is equipped with crossbeam, and the crossbeam is equipped with thermal imaging system；The side wall of the furnace body is equipped with thermocouple, air inlet and air outlet, described
Thermocouple is arranged on the lower section of the sample test platform, and the air inlet is located at the lower section of the air outlet；
The outside of the test furnace is equipped with electrical control cabinet, the electric-heating-wire-heating device, the thermal imaging system and the thermocouple
It is electrically connected with the electrical control cabinet.
2. a kind of high-temperature flame-proof test device for fire proofing material according to claim 1, it is characterised in that：
The furnace body is rectangular.
3. a kind of high-temperature flame-proof test device for fire proofing material according to claim 1, it is characterised in that：
The supporting rack for being used to support the furnace body is equipped with below the furnace body.
4. a kind of high-temperature flame-proof test device for fire proofing material according to claim 1, it is characterised in that：
The thermocouple uses zirconium boride composite ceramics high temperature resisting thermocouple.
5. a kind of high-temperature flame-proof test device for fire proofing material according to any one of claims 1 to 4, feature exist
In：
Air intake pump and spill valve are equipped with outside the test furnace；The air intake pump is connected to the air inlet by air hose, described
Air intake valve is provided on air hose between air intake pump and the air inlet；The spill valve is connected to the outlet air by air hose
Mouthful, it is provided with outlet air valve on the air hose between the spill valve and the air outlet.
6. a kind of high-temperature flame-proof test device for fire proofing material according to claim 5, it is characterised in that：
Air hose between the outlet air valve and the spill valve is additionally provided with air pressure dial gauge.
7. a kind of high-temperature flame-proof test device for fire proofing material according to any one of claims 1 to 4, feature exist
In：
The cross section of notch on the sample test platform is rectangle.
8. a kind of high-temperature flame-proof test device for fire proofing material according to claim 7, it is characterised in that：
The center line of notch on the sample test platform and the center line overlap of the thermal imaging system.
9. a kind of high-temperature flame-proof test device for fire proofing material according to any one of claims 1 to 4, feature exist
In：
The side wall and bottom wall of the furnace body are equipped with insulation interlayer.
10. a kind of high-temperature flame-proof test device for fire proofing material according to any one of claims 1 to 4, feature exist
In：
The side wall of the furnace body is additionally provided with furnace chamber peephole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721661011.XU CN207528671U (en) | 2017-12-04 | 2017-12-04 | A kind of high-temperature flame-proof test device for fire proofing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721661011.XU CN207528671U (en) | 2017-12-04 | 2017-12-04 | A kind of high-temperature flame-proof test device for fire proofing material |
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| CN207528671U true CN207528671U (en) | 2018-06-22 |
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ID=62577376
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721661011.XU Expired - Fee Related CN207528671U (en) | 2017-12-04 | 2017-12-04 | A kind of high-temperature flame-proof test device for fire proofing material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238904A (en) * | 2018-09-27 | 2019-01-18 | 中国科学技术大学 | A kind of structure fire resistance experimental provision |
| CN110596188A (en) * | 2019-10-29 | 2019-12-20 | 中国民用航空总局第二研究所 | Composite material flame spread testing device and testing method |
| CN114563443A (en) * | 2022-02-25 | 2022-05-31 | 苏州赛伍应用技术股份有限公司 | Device and method for testing heat preservation performance of thermal insulation material for battery |
-
2017
- 2017-12-04 CN CN201721661011.XU patent/CN207528671U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238904A (en) * | 2018-09-27 | 2019-01-18 | 中国科学技术大学 | A kind of structure fire resistance experimental provision |
| CN109238904B (en) * | 2018-09-27 | 2024-03-29 | 中国科学技术大学 | Fire-resistant experimental apparatus of structure |
| CN110596188A (en) * | 2019-10-29 | 2019-12-20 | 中国民用航空总局第二研究所 | Composite material flame spread testing device and testing method |
| CN114563443A (en) * | 2022-02-25 | 2022-05-31 | 苏州赛伍应用技术股份有限公司 | Device and method for testing heat preservation performance of thermal insulation material for battery |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180622 Termination date: 20191204 |