CN211877836U - Fire resistance testing device with adjustable sample inclination angle - Google Patents
Fire resistance testing device with adjustable sample inclination angle Download PDFInfo
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- CN211877836U CN211877836U CN202020451166.6U CN202020451166U CN211877836U CN 211877836 U CN211877836 U CN 211877836U CN 202020451166 U CN202020451166 U CN 202020451166U CN 211877836 U CN211877836 U CN 211877836U
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Abstract
The utility model discloses a fire resistance testing device with adjustable sample inclination angle, which comprises a furnace body, a base, a roll-over stand, a power source and a fixing frame for clamping a test sample; the furnace body is arranged on the roll-over stand, the roller supporting seat is arranged on the base, the roll-over stand is arranged on the roller supporting seat, the driving chain is arranged on the outer side of the roll-over stand, the power source is arranged on the base, and the power source is connected with the driving chain through a transmission mechanism; the fixed frame is arranged at the opening of the furnace body through the fixing mechanism; the furnace body is internally provided with a temperature measuring thermocouple and a pressure sensor, the two sides of the furnace body are respectively provided with a gas spray gun, and the flame spraying direction of the gas spray gun is parallel to the fixed frame. The utility model discloses can realize adopting a device to carry out fire-resistant test to the test sample that the test is under the level, perpendicular or different inclination condition, satisfy different experimental demands.
Description
Technical Field
The utility model relates to a fire resistance test technique, concretely relates to sample inclination adjustable fire resistance testing arrangement.
Background
The fire resistance test is a test method for detecting the fire resistance of building components by simulating real fire, and the building components based on the test comprise walls, ceilings, floors, beams, columns, fire doors, fire-proof rolling curtains, fire windows, fire-proof glass, steel structure fire-proof coatings, fire-proof plugging materials, smoke exhaust valves, fire valves and the like. By carrying out a fire resistance test, the fire resistance of the tested building component can be correctly judged, thereby providing guiding data for building design and acceptance, and improving the fire safety of the building.
Generally, for wall materials, fire doors, fire-proof rolling shutters and other members which are usually used in a vertical state, a tested piece is kept in the vertical state during a fire-proof test, and the self weight of the tested piece is concentrated at the bottom of the tested piece in the test process of the tested piece; for members such as ceilings, floors and the like which are usually used in a horizontal state, a tested piece is kept in the horizontal state during a fire resistance test, the periphery of the tested piece is fixed on a frame in the test process of the tested piece, and the tested piece needs to have enough strength to support the tested piece to keep the horizontal state and not collapse in the test process. The requirements of the test piece are greatly different between the two different test states, so that the test piece under different use conditions needs to be selected from different test states.
In order to meet different test requirements, laboratories generally build a horizontal and a vertical refractory limit test furnace respectively, so as to meet different use conditions. The control system of the test furnace is complex, and the required field is large, so that the investment required by a laboratory is huge.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the deficiencies of the prior art, providing a sample inclination adjustable fire resistance testing arrangement. The fire resistance testing device with the adjustable sample inclination angle can detect the fire resistance under different angle conditions so as to meet different test requirements.
The purpose of the utility model is realized through the following technical scheme: the fire resistance testing device with the adjustable sample inclination angle comprises a furnace body, a base, a roll-over stand, a power source and a fixing frame for clamping a test sample; the furnace body is arranged on the roll-over stand, the roller supporting seat is arranged on the base, the roll-over stand is arranged on the roller supporting seat, the driving chain is arranged on the outer side of the roll-over stand, the power source is arranged on the base, and the power source is connected with the driving chain through a transmission mechanism; the fixed frame is arranged at the opening of the furnace body through the fixing mechanism; the furnace body is internally provided with a temperature measuring thermocouple and a pressure sensor, the two sides of the furnace body are respectively provided with a gas spray gun, and the flame spraying direction of the gas spray gun is parallel to the fixed frame.
Preferably, the roll-over stand comprises a bottom frame with a semicircular section and a support frame with an L-shaped section, the driving chain is fixed on the outer wall surface of the bottom frame, and the support frame is arranged on the inner side of the bottom frame; the furnace body is fixed on the bearing frame.
Preferably, the transmission mechanism comprises a driving wheel, a transmission rod, a driven wheel and 2 driving wheels, the driving wheel is mounted on a power output shaft of the power source, the 2 driving wheels are mounted at two ends of the transmission rod, the driven wheel is mounted on the transmission rod and located between the 2 driving wheels, the driving wheel is meshed with the driven wheel, and the 2 driving wheels are respectively connected with corresponding driving chains.
Preferably, the fixing frame comprises 2 clamping plates, the 2 clamping plates are arranged oppositely, a window is arranged in the middle of each clamping plate, and the area of the window is larger than that of the opening of the furnace body.
Preferably, the fixing mechanism is provided with 4 sets, and every 2 sets are symmetrically arranged on two sides of the furnace body.
Preferably, the fixing mechanism comprises a bolt, a hand wheel and a pressing sheet, the bolt is arranged on the outer side of the furnace body, and the hand wheel and the pressing sheet are both sleeved at the outer end of the bolt; when the fixed mount is installed at the opening of the furnace body, the hand wheel is screwed tightly, and the pressing sheet presses the outer side face of the fixed mount.
Preferably, the top of the furnace body is provided with a smoke exhaust pipeline.
The testing method realized based on the device for testing the fire resistance of the sample with the adjustable inclination angle comprises the following steps:
s1) mounting the fixed frame with the test sample at the opening of the furnace body, and driving the roll-over stand to rotate by the power source through the transmission mechanism and the driving chain to enable the test sample to reach the required inclination angle;
s2) connecting the gas spray gun to a gas source and a combustion air source, connecting a smoke exhaust pipeline to a smoke exhaust fan, recording data in the furnace body, and then igniting the gas spray gun;
s3) in the continuous combustion process of the gas spray gun, observing the temperature change of the backfire side face of the test sample through a data acquisition system, and observing whether the surface of the test sample has cracks or flame;
s4) after the gas spray gun continuously burns for a certain time, the gas supply of the gas spray gun is closed, the flame in the furnace body is extinguished, and the fire resistance of the test sample can be tested at a certain inclination angle by combining the detected data and the observed phenomenon.
Preferably, in step 1), the inclination angle is 0 ° to 90 °.
Preferably, the data in steps S3) and S4) each include the temperature and pressure inside the furnace body.
The utility model discloses for prior art have following advantage:
1. the utility model discloses well sample inclination adjustable fire resistance testing arrangement utilizes the inclination of adjustment furnace bodies such as roll-over stand to the realization is to the angular adjustment of test sample, then can realize adopting a device to carry out fire-resistant test to the test sample under the test is in level, perpendicular or the different inclination condition, satisfies different experimental demands.
2. The utility model discloses in only adopt a device can satisfy different experimental demands, and need not build different experimental stoves like the tradition according to the demand of difference, reduced space occupancy, still reduced experimental cost.
Drawings
Fig. 1 is a schematic view of a first structure of the fire resistance testing device with adjustable sample inclination angle of the present invention. Wherein the angle between the test specimen and the horizontal plane is 90 °.
Fig. 2 is a second schematic structural diagram of the fire resistance testing device with adjustable sample inclination angle of the present invention. Wherein the angle between the test specimen and the horizontal plane is 0 °.
Fig. 3 is a side view of fig. 2.
The device comprises a furnace body 1, a base 2, a turnover frame 3, a power source 4, a fixing frame 5, a roller supporting seat 6, a driving chain 7, a transmission mechanism 8, a fixing mechanism 9, a gas spray gun 10, a temperature measuring thermocouple 11, a pressure sensor 12, a bottom frame 13, a supporting frame 14, a driving wheel 15, a transmission rod 16, a driving wheel 17, a clamping plate 18, a bolt 19, a hand wheel 20, a pressing sheet 21, a smoke exhaust pipeline 22, a roller 23, a supporting seat 24 and a test sample 25.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
The fire resistance testing device with the adjustable sample inclination angle shown in fig. 1 to 3 comprises a furnace body, a base, a roll-over stand, a power source and a fixing frame for clamping a test sample; the furnace body is arranged on the roll-over stand, the roller supporting seat is arranged on the base, the roll-over stand is arranged on the roller supporting seat, the driving chain is arranged on the outer side of the roll-over stand, the power source is arranged on the base, and the power source is connected with the driving chain through a transmission mechanism; the fixed frame is arranged at the opening of the furnace body through the fixing mechanism; the furnace body is internally provided with a temperature measuring thermocouple and a pressure sensor, the two sides of the furnace body are respectively provided with a gas spray gun, and the flame spraying direction of the gas spray gun is parallel to the fixed frame. Specifically, the gyro wheel supporting seat has 4, and these 4 are the square and distribute to ensure roll-over stand's stability. The roller supporting seat mainly comprises a roller and a supporting seat, the supporting seat is installed on the base, the roller is installed on the supporting seat through rotation, and the roller supporting seat is simple in structure and good in stability. The power source can adopt an electric motor or a motor. The power supply in this embodiment adopts the motor, and when the motor started, it rotated in order to drive the roll-over stand through drive mechanism and drive chain to the angle of adjustment test sample, in order to make test sample be in level, perpendicular or other inclination. The drive chains use 2 groups, and the 2 groups of drive chains are arranged on the outer wall surface of the roll-over stand in parallel, so that the stability of the roll-over stand during rotation can be further ensured.
The turnover frame comprises a bottom frame with a semicircular section and a support frame with an L-shaped section, the driving chain is fixed on the outer wall surface of the bottom frame, and the support frame is arranged on the inner side of the bottom frame; the furnace body is fixed on the bearing frame. Specifically, the outer wall surface of the supporting frame is fixedly connected with the two ends of the bottom frame, the furnace body is bonded to the two inner right-angle surfaces of the supporting frame through the high-temperature-resistant fireproof mud, and the furnace body is simple in structure, good in stability and convenient to install.
The transmission mechanism comprises a driving wheel, a transmission rod, a driven wheel and 2 driving wheels, wherein the driving wheel is installed on a power output shaft of the power source, the 2 driving wheels are installed at two ends of the transmission rod, the driven wheel is installed on the transmission rod and located between the 2 driving wheels, the driving wheel is meshed with the driven wheel, and the 2 driving wheels are respectively connected with corresponding driving chains. Adopt 2 drive wheels, and this 2 drive wheels are by motor synchronous drive, and this power transmission is stable, can further guarantee when adjusting the roll-over stand, and the roll-over stand can rotate steadily.
The fixing frame comprises 2 clamping plates, the 2 clamping plates are arranged oppositely, a window is arranged in the middle of each clamping plate, and the area of the window is larger than that of an opening of the furnace body. The fixing frame is simple in structure, and a test sample can be observed conveniently in the test process. Specifically, the window is square, and the area of the window is larger than that of the opening, so that the test sample can be fully burned to ensure the test effect.
The fixed mechanism has 4 sets, and every 2 sets of symmetry set up in the both sides of furnace body. The fixing mechanism comprises a bolt, a hand wheel and a pressing sheet, the bolt is arranged on the outer side of the furnace body, and the hand wheel and the pressing sheet are both sleeved at the outer end of the bolt; when the fixed mount is installed at the opening of the furnace body, the hand wheel is screwed tightly, and the pressing sheet presses the outer side face of the fixed mount. The 4 sets of fixing mechanisms can ensure that the fixing frame which is clamped with the test sample is stably arranged at the opening of the furnace body. Meanwhile, the fixing mechanism mainly comprises a bolt, a hand wheel and a pressing sheet, the structure is simple, the operation is convenient, and the fixing frame can be further ensured to be stably fixed at the opening of the furnace body.
And a smoke exhaust pipeline is arranged at the top of the furnace body. The waste gas in the furnace body is smoothly discharged, so that the experimental effect is prevented from being influenced.
The testing method realized based on the device for testing the fire resistance of the sample with the adjustable inclination angle comprises the following steps:
s1) mounting the fixed frame with the test sample at the opening of the furnace body, and driving the roll-over stand to rotate by the power source through the transmission mechanism and the driving chain to enable the test sample to reach the required inclination angle;
s2) connecting the gas spray gun to a gas source and a combustion air source through a quick connector, connecting a smoke exhaust pipeline to a smoke exhaust fan through a quick connector, recording data in the furnace body, and then igniting the gas spray gun;
s3) in the continuous combustion process of the gas spray gun, observing the temperature change of the backfire side (i.e. the side not subjected to fire) of the tested sample through a data acquisition system, and observing whether the tested sample surface has cracks or flame through a window; the data acquisition system employed in this step S3) is an existing data acquisition system.
S4) after the gas spray gun continuously burns for a certain time, the gas supply of the gas spray gun is closed, the flame in the furnace body is extinguished, and the fire resistance of the test sample can be tested at a certain inclination angle by combining the detected data and the observed phenomenon.
In the step 1), the size of the inclination angle is 0-90 degrees.
The data in steps S3) and S4) each include the temperature and pressure inside the furnace body. The temperature in the furnace body is detected by a temperature measuring thermocouple, the pressure is detected by a pressure sensor, and data detected by the temperature measuring thermocouple and the pressure sensor are transmitted to a control system of the fire resistance testing device to be recorded and displayed by a display in the control system. The control system of the fire resistance testing device adopts the existing control to reduce the design cost.
Specifically, in this embodiment, 4 gas spray guns are adopted, 2 gas spray guns are respectively installed on two sides of the furnace body, and the gas spray guns located on the two sides are arranged in a staggered manner, that is, not arranged in an aligned manner. Meanwhile, a corresponding temperature measuring thermocouple is arranged right opposite to the gas spray gun. The volume of the inner space of the furnace body is 1m3The side area of the test specimen was 2m2The loading capacity of the roll-over stand is 10 tons, wherein the angle between the test specimen and the horizontal plane is 90 °.
Example 2
The device for testing the fire resistance of the sample with the adjustable inclination angle is the same as that in the embodiment 1 except for the following technical characteristics: the volume of the inner space of the furnace body is 8m3The number of the gas spray guns is 8, and the number of the test samples is 2m2The loading capacity of the roll-over stand is 20 tons, wherein the angle between the test specimen and the horizontal plane is 0 °.
Example 3
The device for testing the fire resistance of the sample with the adjustable inclination angle is the same as that in the embodiment 1 except for the following technical characteristics: of the interior space of the furnace bodyVolume of 50m3The number of the gas spray guns is 20, and the number of the test samples is 4m2The loading capacity of the roll-over stand is 30 tons, wherein the angle between the test specimen and the horizontal plane is 90 °.
The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.
Claims (7)
1. The utility model provides a sample inclination adjustable fire resistance test device which characterized in that: the device comprises a furnace body, a base, a roll-over stand, a power source and a fixing frame for clamping a test sample; the furnace body is arranged on the roll-over stand, the roller supporting seat is arranged on the base, the roll-over stand is arranged on the roller supporting seat, the driving chain is arranged on the outer side of the roll-over stand, the power source is arranged on the base, and the power source is connected with the driving chain through a transmission mechanism; the fixed frame is arranged at the opening of the furnace body through the fixing mechanism; the furnace body is internally provided with a temperature measuring thermocouple and a pressure sensor, the two sides of the furnace body are respectively provided with a gas spray gun, and the flame spraying direction of the gas spray gun is parallel to the fixed frame.
2. The apparatus for testing fire resistance of a sample with adjustable inclination angle according to claim 1, wherein: the turnover frame comprises a bottom frame with a semicircular section and a support frame with an L-shaped section, the driving chain is fixed on the outer wall surface of the bottom frame, and the support frame is arranged on the inner side of the bottom frame; the furnace body is fixed on the bearing frame.
3. The apparatus for testing fire resistance of a sample with adjustable inclination angle according to claim 1, wherein: the transmission mechanism comprises a driving wheel, a transmission rod, a driven wheel and 2 driving wheels, wherein the driving wheel is installed on a power output shaft of the power source, the 2 driving wheels are installed at two ends of the transmission rod, the driven wheel is installed on the transmission rod and located between the 2 driving wheels, the driving wheel is meshed with the driven wheel, and the 2 driving wheels are respectively connected with corresponding driving chains.
4. The apparatus for testing fire resistance of a sample with adjustable inclination angle according to claim 1, wherein: the fixing frame comprises 2 clamping plates, the 2 clamping plates are arranged oppositely, a window is arranged in the middle of each clamping plate, and the area of the window is larger than that of an opening of the furnace body.
5. The apparatus for testing fire resistance of a sample with adjustable inclination angle according to claim 1, wherein: the fixed mechanism has 4 sets, and every 2 sets of symmetry set up in the both sides of furnace body.
6. The apparatus for testing fire resistance of a sample with adjustable inclination angle according to claim 1, wherein: the fixing mechanism comprises a bolt, a hand wheel and a pressing sheet, the bolt is arranged on the outer side of the furnace body, and the hand wheel and the pressing sheet are both sleeved at the outer end of the bolt; when the fixed mount is installed at the opening of the furnace body, the hand wheel is screwed tightly, and the pressing sheet presses the outer side face of the fixed mount.
7. The apparatus for testing fire resistance of a sample with adjustable inclination angle according to claim 1, wherein: and a smoke exhaust pipeline is arranged at the top of the furnace body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020451166.6U CN211877836U (en) | 2020-03-31 | 2020-03-31 | Fire resistance testing device with adjustable sample inclination angle |
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| CN202020451166.6U CN211877836U (en) | 2020-03-31 | 2020-03-31 | Fire resistance testing device with adjustable sample inclination angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137147A (en) * | 2021-12-01 | 2022-03-04 | 安徽华瑞检测技术股份有限公司 | Fire-resistant component fire resistance detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137147A (en) * | 2021-12-01 | 2022-03-04 | 安徽华瑞检测技术股份有限公司 | Fire-resistant component fire resistance detection device |
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