Building outer wall surface fire simulation experiment system

Abstract

The application provides a building outer wall fire simulation experiment system, which comprises a simulation wall, a simulation combustion chamber is installed on the simulation wall away from the side of the wall support, the wall support comprises a sliding seat, the abutting telescopic rod pushes the thermal insulation layer plate embedded in the transverse translation groove to the side of the simulation wall through the telescopic rod installed thereon, so that the thermal insulation layer plate is tightly abutted on the side of the simulation wall away from the simulation combustion chamber; a plurality of temperature sensing probes arranged in an array are also provided on the side of the simulation wall, and the open fire is extinguished through an external fire extinguishing device, the application can automatically install the thermal insulation layer plate, and the temperature sensing probe is automatically inserted into the thermal insulation layer plate during the installation process, the assembly process of the thermal insulation layer plate is efficient and safe, in addition, the device is provided with a fire extinguishing device in the telescopic rod and the simulation combustion chamber, so that the open fire can be quickly extinguished after the test is completed, the fire is effectively controlled, and the safety of the test device is improved.

Description

Technical Field

[0001] This invention relates to the field of fire safety simulation experiment technology, specifically a fire simulation experiment system for building exterior walls. Background Technology

[0002] The significance of simulated combustion tests on external wall insulation layers lies in evaluating and verifying the fire resistance performance of external wall insulation materials to ensure that buildings can provide sufficient fire protection in the event of a fire. Through simulated combustion tests on external wall insulation layers, their fire resistance performance can be evaluated, and design and material selection can be optimized. This helps to select safer external wall insulation materials that meet fire resistance requirements, thereby improving the overall performance and sustainability of buildings.

[0003] The prior art, disclosed in publication number "CN110108834B", describes a combustion characteristic testing system for building exterior wall insulation boards. Belonging to the field of fire protection, it is a novel combustion testing experimental device used to test and study various combustion characteristics of exterior wall insulation boards and decorative curtain walls of high-rise buildings. It includes a multi-structure three-story chamber, a movable and adjustable curtain wall platform, a molten dripping platform, a system ignition source, and a data acquisition system. The multi-structure three-story chamber uses a lightweight steel profile to construct the overall frame structure, and fire-resistant and flame-retardant boards to construct the walls. The movable and adjustable curtain wall platform has a support frame constructed from profiles at its bottom. The molten dripping platform has a bottom support frame constructed from profiles, with a high-precision mass weighing system B placed on top of the support. A heat insulation plate is placed on the weighing balance, and a combustion pool is formed on the heat insulation plate to test the flowing combustion characteristics and molten droplet mass after the core material drips. The system ignition source has two ignition sources. The data acquisition system includes a high-speed camera, a high-precision mass weighing balance, and a temperature field and heat flux acquisition device.

[0004] However, the aforementioned building exterior wall insulation board combustion characteristic testing system still has some obvious defects in use: although the device can perform combustion tests on the insulation board, the installation of the insulation board requires manual replacement, which affects the assembly efficiency. At the same time, the device does not set up an effective fire extinguishing device after the test is completed, which is not conducive to the control of the fire. Summary of the Invention

[0005] The purpose of this invention is to provide a fire simulation experimental system for building exterior walls to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fire simulation test system for building exterior walls includes a simulated wall. A wall support is slidably mounted on one side of the simulated wall. A window opening is provided in the simulated wall. A simulated combustion chamber is installed on the side of the simulated wall away from the wall support. The wall support includes a sliding seat. A transverse sliding groove for embedding an insulation board is provided in the middle of the sliding seat. Several transverse sliding wheels are provided in the transverse sliding groove. A pair of columns are installed on the sliding seat on the side of the transverse sliding groove closest to the simulated wall. Several stop bars are installed between the columns on both sides. Several abutment telescopic rods are installed on the sliding seat on the side of the transverse sliding groove away from the simulated wall. The abutment telescopic rods push the insulation board embedded in the transverse sliding groove toward one side of the simulated wall through the telescopic rods installed on them, so that the insulation board is tightly abutted against the side of the simulated wall away from the simulated combustion chamber.

[0008] The simulated wall is also provided with several embedding slots for inserting the baffles. When the insulation board is in close contact with the simulated wall, the baffles are located in the embedding slots of the simulated wall. The simulated wall is also provided with several telescopic temperature sensors arranged in an array on the side near the wall support. When the insulation board is in close contact with the simulated wall, the temperature sensors extend outward and insert into the insulation board.

[0009] Both the wall support and the simulated combustion chamber are connected to an external fire extinguishing device via pipes, which extinguishes any open flames after the experiment is completed.

[0010] Preferably, a smoke and dust collection hood is also fixedly installed above the simulated wall. The smoke and dust collection hood is connected to an external air pumping device through a pipeline, and the external air pumping device is also connected to an air purification device through a pipeline.

[0011] Preferably, the bottom of the sliding seat is provided with a translation slide rail, and an auxiliary slide rail is also laid on one side of the translation slide rail. An automatic feeding plate is slidably arranged on the auxiliary slide rail. The automatic feeding plate is provided with several transverse matching grooves. Several insulation layers are installed in the transverse matching grooves of the automatic feeding plate. Each transverse matching groove is provided with a transverse translation wheel at the bottom of the transverse matching groove to push the insulation layer from the transverse matching groove to the transverse translation groove.

[0012] Preferably, both the sliding seat and the automatic feeding plate have track grooves at their bottoms, and translational sliding track wheels are provided in the track grooves. The translational sliding track wheels drive the sliding seat and the automatic feeding plate to slide in translation under the drive of the sliding motor.

[0013] Preferably, hollow channels are provided in the middle of the columns on both sides and the several stops. The several stops are connected to the hollow channels of the columns. The hollow channels of the columns are connected to an external fire extinguishing device through pipes. Several fire extinguishing agent release holes are provided on the stops and connected to the hollow channels. The fire extinguishing agent released by the external fire extinguishing device is sprayed out through the fire extinguishing agent release holes and then acts on the insulation board and the simulated wall.

[0014] Preferably, the simulated combustion chamber is also equipped with a lifting and lowering sealing plate on the side near the window opening. The sealing plate moves up and down under the drive of the lifting motor, thereby closing or opening the window opening. The simulated combustion chamber is also provided with a pick-up and drop-out port, and a sealing baffle is provided in the pick-up and drop-out port.

[0015] Preferably, several transverse auxiliary pulleys are also installed on the side of the columns on both sides near the transverse translation groove.

[0016] Preferably, the abutting telescopic rod and several temperature sensors are both installed inside the telescopic cylinder. The telescopic cylinder connected to the abutting telescopic rod is connected to the first compression cylinder, and the telescopic cylinder connected to the several temperature sensors is connected to the second compression cylinder. The telescopic ends of the first compression cylinder and the second compression cylinder abut against each other. During the process of the wall support sliding towards the simulated wall, the telescopic ends of the first compression cylinder and the second compression cylinder squeeze each other, causing the abutting telescopic rod to extend outward, thereby causing the insulation board to abut against the simulated wall. During this process, several temperature sensors extend outward under the compression of the second compression cylinder, thereby inserting several temperature sensors into the insulation board.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention enables the automatic installation of insulation panels, and simultaneously inserts temperature sensors into the insulation panels during the installation process. The assembly process of the insulation panels is efficient and safe. In addition, the device is equipped with fire extinguishing devices in the baffle and the simulated combustion chamber, which can quickly extinguish open flames after the test, thereby effectively controlling the fire and improving the safety of the test device. Attached Figure Description

[0019] Figure 1 This is a side view of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall disassembled structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the insulation layer panel installation structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the stop bar structure of the present invention.

[0023] In the diagram: 1. Simulated wall, 2. Wall support, 3. Window opening, 4. Simulated combustion chamber, 5. Sliding seat, 6. Insulation board, 7. Horizontal sliding groove, 8. Horizontal sliding wheel, 9. Column, 10. Stop bar, 11. Abutment telescopic rod, 12. Embedded groove, 13. Temperature sensor, 14. Pipe, 15. External fire extinguishing device, 16. Smoke collection hood, 17. Sliding slide rail, 18. Auxiliary slide rail, 19. Automatic feeding plate, 20. Horizontal matching slide groove, 21. Track groove, 22. Hollow channel, 23. Fire extinguishing agent release hole, 24. Sealing plate, 25. Lifting motor, 26. Pick-up and drop-off port, 27. Sealing baffle, 28. Horizontal auxiliary pulley, 29. Telescopic cylinder, 30. First compression cylinder, 31. Second compression cylinder. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1 -4. This invention provides a technical solution:

[0026] Example 1:

[0027] A fire simulation test system for building exterior walls includes a simulated wall 1. A wall support 2 is slidably mounted on one side of the simulated wall 1. A window 3 is opened on the simulated wall 1. A simulated combustion chamber 4 is installed on the side of the simulated wall 1 away from the wall support 2. The wall support 2 includes a sliding seat 5. A transverse sliding groove 7 for embedding an insulation board 6 is opened in the middle of the sliding seat 5. Several transverse sliding wheels 8 are arranged in the transverse sliding groove 7. A pair of columns 9 are installed on the sliding seat 5 on the side of the transverse sliding groove 7 close to the simulated wall 1. Several baffles 10 are installed between the columns 9 on both sides. Several abutment telescopic rods 11 are installed on the sliding seat 5 on the side of the transverse sliding groove 7 away from the simulated wall 1. The abutment telescopic rods 11 push the insulation board 6 embedded in the transverse sliding groove 7 towards one side of the simulated wall 1 through the telescopic rods installed on them, so that the insulation board 6 is tightly abutted against the side of the simulated wall 1 away from the simulated combustion chamber 4.

[0028] The simulated wall 1 is also provided with a number of embedding slots 12 for inserting the baffles 10. When the insulation board 6 is in close contact with the simulated wall 1, the baffles 10 are located in the embedding slots 12 of the simulated wall 1. The simulated wall 1 is also provided with a number of telescopic temperature sensors 13 in an array on the side near the wall support 2. When the insulation board 6 is in close contact with the simulated wall 1, the temperature sensors 13 extend outward and insert into the insulation board 6.

[0029] Both the wall support 2 and the simulated combustion chamber 4 are connected to the external fire extinguishing device 15 through the pipe 14, and the open flame after the experiment is completed is extinguished by the external fire extinguishing device 15.

[0030] In this embodiment, the simulated wall 1 is used to simulate the exterior wall of a building. The window openings 3 simulate the spread of fire from the interior to the exterior wall insulation panel 6. The insulation panel 6 can be made of different materials of the same thickness and layering for combustion control, or it can be made of the same material but different thicknesses for control testing. This allows for the selection of suitable insulation materials and thicknesses based on the combustion conditions. Since multiple control tests are required, the insulation panels 6 are prefabricated to the same size to facilitate rapid assembly with the simulated wall panel 1. To improve the assembly efficiency of the insulation panel 6, this embodiment also includes a wall support 2, which supports the insulation panel 6 and... The insulation board 6 is attached to one side of the simulated wall 1. To improve assembly efficiency, the wall support 2 in this embodiment includes a sliding seat 5. The insulation board 6 can be smoothly embedded into the sliding seat 5. The insulation board 6 is prevented from falling to one side by the columns 9, the stop bars 10, and the blocking of the telescopic rods 11 on the opposite side. In order to ensure the monitoring of the internal condition of the insulation board 6 during the test, a temperature sensor 13 is inserted into the insulation board 6 to effectively monitor the heat spread inside the insulation board 6. At the same time, after the experiment, the open flames on the simulated combustion chamber 4 and the insulation board 6 need to be extinguished. The columns 9 on both sides and several stop bars 10 are all provided with a middle section. A hollow passage 22 is formed, with several baffles 10 connected to the hollow passage 22 of the column 9. The hollow passage 22 of the column 9 is connected to an external fire extinguishing device 15 via a pipe 14. Several fire extinguishing agent release holes 23 are provided on the baffles 10, which are connected to the hollow passage 22. The fire extinguishing agent released by the external fire extinguishing device 15 is sprayed out through the fire extinguishing agent release holes 23, and then acts on the insulation board 6 and the simulated wall 1. In this embodiment, by providing fire extinguishing agent release holes 23 on the baffles 10, and because they are close to the simulated wall 1 and the insulation board 6, and are embedded in the embedding groove 12 provided in the simulated wall 1 during the experiment, sufficient contact between the simulated wall 1 and the insulation board 6 can be ensured during the experiment. After the experiment, the embedded groove 12 can be moved out during the movement of the wall support 2. At this time, the stop bar 10 is located in the gap between the insulation board 6 and the simulated wall 1. At this time, the fire extinguishing agent release hole 23 opened on the stop bar 10 can be used for targeted fire extinguishing. The fire extinguishing agent release hole 23 faces the simulated wall 1, the insulation board 6 and the window opening 3. Through the scientific arrangement of the fire extinguishing agent release hole 23, the fire extinguishing effect can be guaranteed, thereby ensuring that the experiment can be safely completed. Several horizontal auxiliary pulleys 28 are also installed on the side of the columns 9 near the horizontal translation groove 7. The setting of the horizontal auxiliary pulleys 28 reduces the friction between the insulation board 6 and the column 9 when they come into contact.

[0031] Example 2:

[0032] A smoke and dust collection hood 16 is also fixedly installed above the simulated wall 1. The smoke and dust collection hood 16 is connected to an external air pumping device through a pipeline. The external air pumping device is also connected to an air purification device through a pipeline.

[0033] In this embodiment, by setting a smoke collection hood 16 above the simulated wall 1, the toxic and harmful gases generated during combustion can be collected and purified, improving the environmental friendliness of the device. Furthermore, by installing a fire extinguishing device on the smoke collection hood 16, it can extinguish the fire from above on the side of the insulation board 6 away from the simulated wall 1, thereby solving the defect that the baffle 10 can only extinguish the fire on the side of the insulation board 6 close to the simulated wall 1.

[0034] Example 3:

[0035] The bottom of the sliding seat 5 is provided with a translation slide rail 17, and an auxiliary slide rail 18 is also laid on one side of the translation slide rail 17. An automatic feeding plate 19 is slidably arranged on the auxiliary slide rail 18. Several transverse matching grooves 20 are opened on the automatic feeding plate 19. Several insulation plates 6 are installed in the transverse matching grooves 20 of the automatic feeding plate 19. A transverse translation wheel 8 is installed at the bottom of each transverse matching groove 20 to push the insulation plate 6 from the transverse matching groove 20 to the transverse translation groove 7.

[0036] Both the sliding seat 5 and the automatic feeding plate 19 have a track groove 21 at their bottom. The track groove 21 is equipped with a translational sliding track wheel. The translational sliding track wheel drives the sliding seat 5 and the automatic feeding plate 19 to slide in translation under the drive of the sliding motor.

[0037] In this embodiment, a driving device for the lateral translation of the sliding seat 5 and the automatic feeding plate 19 is further disclosed. Since its driving mechanism is common in the prior art, it is not shown in the accompanying drawings. The automatic feeding plate 19 is provided with several lateral fitting grooves 20 for the placement of the insulation layer plate 6. After the experiment is completed and the test site is cleaned, the automatic feeding plate 19 is moved so that its lateral fitting grooves 20 engage with the lateral translation grooves 7. The lateral translation wheels 8 drive the insulation layer plate 6 to be inserted laterally into the sliding seat 5, thereby quickly assembling the insulation layer plate 6.

[0038] Example 4:

[0039] The simulated combustion chamber 4 is also equipped with a lifting and lowering sealing plate 24 on the side near the window opening 3. The sealing plate 24 moves up and down under the drive of the lifting motor 25, thereby closing or opening the window opening 3. The simulated combustion chamber 4 is also provided with a take-out port 26 on one side, and a sealing baffle 27 is provided in the take-out port 26.

[0040] In this embodiment, the window opening 3 is sealed by setting a sealing plate 24, and the pipe 14 above the simulated combustion chamber 4 is connected to the external fire extinguishing device 15, so that the open flame in the simulated combustion chamber 4 can be quickly extinguished. In this embodiment, the external fire extinguishing device 15 is a fire extinguisher tank structure connected by an electrically controlled valve. The fire extinguishing medium in the fire extinguisher tank is sprayed out by manually controlling the opening and closing of the valve.

[0041] Example 5:

[0042] The abutment telescopic rod 11 and several temperature sensors 13 are both installed inside the telescopic cylinder 29. The telescopic cylinder 29 connected to the abutment telescopic rod 11 is connected to the first compression cylinder 30, and the telescopic cylinder 29 connected to the several temperature sensors 13 is connected to the second compression cylinder 31. The telescopic ends of the first compression cylinder 30 and the second compression cylinder 31 abut against each other. During the process of the wall support 2 sliding towards the simulated wall 1, the telescopic ends of the first compression cylinder 30 and the second compression cylinder 31 squeeze each other, causing the abutment telescopic rod 11 to extend outward, thereby causing the insulation board 6 to abut against the simulated wall 1. During this process, the several temperature sensors 13 extend outward under the compression of the second compression cylinder 31, thereby inserting the several temperature sensors 13 into the insulation board 6.

[0043] In this embodiment, the abutment telescopic rod 11 and several temperature sensors 13 are installed inside the telescopic cylinder 29. The telescopic cylinder 29 of both is connected to the first compression cylinder 30 and the second compression cylinder 31, respectively. By installing the first compression cylinder 30 and the second compression cylinder 31 on the sliding seat 5 and the simulated wall 1, respectively, the wall support 2 and the simulated wall 1 are pressed against each other during the approach process, thereby automatically completing the abutment and adhesion of the insulation board 6 and the automatic installation of several temperature sensors 13. The fire simulation experiment device in this embodiment includes, but is not limited to, the temperature sensors 13, as well as infrared cameras, smoke sensors, etc. commonly used in the prior art, so as to more comprehensively monitor the combustion process of the insulation board 6.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A building exterior wall fire simulation experimental system, comprising a simulated wall, wherein a wall support is slidably mounted on one side of the simulated wall, a window opening is provided on the simulated wall, and a simulated combustion chamber is installed on the side of the simulated wall away from the wall support, characterized in that: The wall support includes a sliding seat with a transverse translation groove in the middle for embedding the insulation board. Several transverse translation wheels are provided in the transverse translation groove. A pair of columns are installed on the sliding seat on the side of the transverse translation groove closest to the simulated wall, and several stop bars are installed between the columns on both sides. Several abutment telescopic rods are installed on the sliding seat on the side of the transverse translation groove away from the simulated wall. The abutment telescopic rods push the insulation board embedded in the transverse translation groove toward the side of the simulated wall through the telescopic rods installed on them, so that the insulation board is tightly abutted against the side of the simulated wall away from the simulated combustion chamber. The simulated wall is also provided with several embedding slots for inserting the baffles. When the insulation board is in close contact with the simulated wall, the baffles are located in the embedding slots of the simulated wall. The simulated wall is also provided with several telescopic temperature sensors arranged in an array on the side near the wall support. When the insulation board is in close contact with the simulated wall, the temperature sensors extend outward and insert into the insulation board. The wall support and the simulated combustion chamber are both connected to an external fire extinguishing device via pipes, which extinguishes the open flames after the experiment is completed. Hollow channels are provided in the middle of the columns on both sides and several baffles. Several baffles are connected to the hollow channels of the columns. The hollow channels of the columns are connected to an external fire extinguishing device through pipes. Several fire extinguishing agent release holes are provided on the baffles and are connected to the hollow channels. The fire extinguishing agent released by the external fire extinguishing device is sprayed out through the fire extinguishing agent release holes and then acts on the insulation board and the simulated wall. The abutment telescopic rod and several temperature sensors are all installed inside the telescopic cylinder. The telescopic cylinder connected to the abutment telescopic rod is connected to the first compression cylinder, and the telescopic cylinder connected to the several temperature sensors is connected to the second compression cylinder. The telescopic ends of the first compression cylinder and the second compression cylinder abut against each other. During the process of the wall support sliding towards the simulated wall, the telescopic ends of the first compression cylinder and the second compression cylinder squeeze each other, causing the abutment telescopic rod to extend outward, thereby causing the insulation board to abut against the simulated wall. During this process, several temperature sensors extend outward under the compression of the second compression cylinder, thereby inserting several temperature sensors into the insulation board.

2. The building exterior wall fire simulation experimental system according to claim 1, characterized in that: A smoke and dust collection hood is also fixedly installed above the simulated wall. The smoke and dust collection hood is connected to an external air pumping device through a pipeline. The external air pumping device is also connected to an air purification device through a pipeline.

3. The building exterior wall fire simulation experimental system according to claim 2, characterized in that: The bottom of the sliding seat is provided with a translation slide rail, and an auxiliary slide rail is also laid on one side of the translation slide rail. An automatic feeding plate is slidably arranged on the auxiliary slide rail. Several transverse matching grooves are opened on the automatic feeding plate. Several insulation layers are installed in the transverse matching grooves of the automatic feeding plate. A transverse translation wheel is installed at the bottom of each transverse matching groove to push the insulation layer from the transverse matching groove to the transverse translation groove.

4. The building exterior wall fire simulation experimental system according to claim 3, characterized in that: Both the sliding seat and the automatic feeding plate have track grooves at their bottoms, and translational sliding track wheels are installed in the track grooves. Driven by a sliding motor, the translational sliding track wheels drive the sliding seat and the automatic feeding plate to slide horizontally.

5. The building exterior wall fire simulation experimental system according to claim 4, characterized in that: The simulated combustion chamber is also equipped with a lifting and lowering sealing plate on the side near the window opening. The sealing plate moves up and down under the drive of the lifting motor, thereby closing or opening the window opening. The simulated combustion chamber is also provided with a pick-up and drop-out port, and a sealing baffle is provided in the pick-up and drop-out port.

6. The building exterior wall fire simulation experimental system according to claim 5, characterized in that: Several horizontal auxiliary pulleys are also installed on the side of the columns on both sides near the horizontal translation groove.

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