Fireproof testing device for cable shaft

Abstract

The utility model provides a cable shaft fireproof testing device, which belongs to the technical field of fireproof material testing and comprises a testing shaft and a measurement and control module. A plurality of separation floor slabs are arranged in the testing vertical shaft; the separation floor divides the interior of the test vertical shaft into an air supplement area, a combustion area and a spreading area; cable holes are formed in the separation floor slabs; an air supplement channel is formed in the partition floor between the air supplement area and the combustion area; an air supplementing opening and a smoke discharging opening are formed in the testing vertical shaft; the measurement and control module comprises a first monitoring assembly and a second monitoring assembly; the first monitoring assembly is arranged in the combustion area; the second monitoring assembly is arranged in the spreading area. According to the cable shaft fireproof testing device provided by the utility model, a real fire scene is simulated by virtue of the air supplement area, the combustion area and the spreading area, and the combustion area and the spreading area are respectively monitored by virtue of the first monitoring assembly and the second monitoring assembly, so that the performance of a fireproof plugging material and an additional flame-retardant material on a cable is evaluated.

Description

Technical Field

[0001] This utility model belongs to the field of fireproof material testing technology, specifically relating to a fireproof testing device for cable shafts. Background Technology

[0002] In high-rise buildings, fires in cable shafts burn rapidly. Furthermore, once a fire breaks out in a cable shaft, it is prone to the "chimney effect," which increases the speed of fire spread several times over, ultimately turning it into a rapid channel for fire spread.

[0003] Currently, evaluations of fire safety products for cable shafts mostly focus on individual products or materials such as fire-stopping materials, flame retardancy of the cable itself, and additional flame retardancy of the cable, lacking a comprehensive assessment of fire-stopping systems for specific application scenarios. Utility Model Content

[0004] This utility model provides a fire protection testing device for cable shafts to solve the technical problem that existing fire protection testing devices are unable to conduct a comprehensive evaluation of the fireproof sealing system.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a fire-resistant testing device for cable shafts, comprising:

[0006] The test shaft has multiple partition floors inside. These partition floors divide the test shaft into a make-up air zone, a combustion zone, and a propagation zone, arranged sequentially from bottom to top. Cable holes are provided on the partition floors for cables to pass through; these holes are filled with fire-resistant sealing material, and the cables are coated with additional flame-retardant material. A make-up air channel is provided on the partition floor between the make-up air zone and the combustion zone. The test shaft has make-up air inlets connected to the make-up air zone and smoke exhaust outlets connected to the combustion zone.

[0007] A monitoring and control module is located inside the test shaft; the monitoring and control module includes a first monitoring component and a second monitoring component; the first monitoring component is located in the combustion zone and is used to monitor and record the temperature and radiant heat flux of the combustion zone; the second monitoring component is located in the propagation zone and is used to monitor and record the temperature of the propagation zone and observe the propagation zone.

[0008] In one possible implementation, the first monitoring component includes a first temperature sensor and a radiative heat flux meter; the first temperature sensor is disposed on the inner wall of the test shaft for monitoring air temperature; the radiative heat flux meter is disposed on the corresponding partition floor slab, and the probe of the radiative heat flux meter is oriented towards the cable.

[0009] In one possible implementation, the second monitoring component includes a plurality of second temperature sensors and a camera; the plurality of second temperature sensors are respectively disposed on the surface of the flame-retardant material attached to the cable and on the fireproof sealing material; the camera is disposed on the corresponding partition floor slab, and the camera lens of the camera is oriented toward the fireproof sealing material and the cable.

[0010] In one possible implementation, an air flow meter is also provided at the air supply inlet. The air flow meter is electrically connected to the measurement and control module and is used to monitor and record the air supply volume.

[0011] In one possible implementation, the cable shaft fire protection testing device further includes a combustion device; the combustion device is located in the combustion zone and is used to ignite the cable.

[0012] In one possible implementation, the partition floor slab is provided with a support frame located within the combustion zone; the combustion device is mounted on the support frame and positioned above the fireproof sealing material.

[0013] In one possible implementation, the test shaft is provided with multiple installation doors for opening or closing the air supply zone, the combustion zone, and the propagation zone.

[0014] In one possible implementation, the inner wall of the test shaft is also equipped with a fire extinguishing device, which is located within the combustion zone and is used to extinguish the fire.

[0015] In one possible implementation, the inner wall of the test shaft is also equipped with a crane located within the spread zone for lifting cables.

[0016] The beneficial effects of the fire-resistant testing device for cable shafts provided by this utility model are as follows: Compared with the prior art, the fire-resistant testing device for cable shafts of this utility model, when in use, ignites the cable located in the combustion zone and activates the monitoring and control module. The first monitoring component monitors and records the temperature and radiant heat flux of the combustion zone, while the second monitoring component monitors the temperature and observes the conditions of the spread zone. This allows for the evaluation of the performance of the fire-resistant sealing material filling the cable hole and the flame-retardant material attached to the cable. Multiple partition floors separate the interior of the test shaft into an air supply zone, a combustion zone, and a spread zone to simulate a real fire combustion scenario. Cable holes are provided to facilitate cable installation within the test shaft. Air supply vents and air supply channels are provided to simulate cable shafts in actual buildings. The system incorporates a chimney effect to replenish fresh air at the bottom; a spread zone to simulate the fire spread above the combustion zone in a real building; smoke vents to exhaust smoke during combustion, ensuring a continuous supply of air to the combustion zone and guaranteeing complete combustion of cables and other combustibles; and a simulated real fire scenario using the air replenishment zone, combustion zone, and spread zone. First and second monitoring components monitor the combustion zone and spread zone respectively, allowing for the evaluation of the performance of fire-resistant sealing materials and additional flame-retardant materials. Simultaneously, the spread zone effectively monitors the propagation of smoke, temperature, and flames, demonstrating a fire safety approach focused on preventing fire spread and expansion under harsh combustion conditions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the testing device provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the combustion zone provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the spread region provided in an embodiment of the present utility model;

[0021] Figure 4 This is an isometric view of the testing device provided in an embodiment of the present invention.

[0022] The following are the labeling elements in the figure:

[0023] 1. Test shaft; 11. Partition floor slab; 12. Make-up air zone; 13. Combustion zone; 14. Spread zone; 15. Cable hole; 16. Make-up air duct; 17. Make-up air inlet; 18. Smoke exhaust outlet; 19. Installation door; 2. Measurement and control module; 21. First temperature sensor; 22. Radiant heat flux meter; 23. Second temperature sensor; 24. Camera; 25. Air flow meter; 3. Fireproof sealing material; 4. Additional flame retardant material; 5. Combustion device; 6. Support frame; 7. Fire extinguishing device; 8. Crane; 9. Cable. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Please see Figures 1 to 4The fire-resistant testing device for cable shafts provided by this utility model will now be described. A fire-resistant testing device for cable shafts includes a test shaft 1 and a control module 2; the test shaft 1 is provided with multiple partition floors 11; the partition floors 11 divide the interior of the test shaft 1 into a make-up air zone 12, a combustion zone 13, and a spread zone 14 arranged sequentially from bottom to top; cable holes 15 for cables 9 to pass through are opened on the partition floors 11, the cable holes 15 are filled with fire-resistant sealing material 3, and the cables are coated with additional flame-retardant material 4; the partition floors 11 between the make-up air zone 12 and the combustion zone 13 are... An air supply channel 16 is provided; an air supply port 17 connected to the air supply zone 12 and a smoke exhaust port 18 connected to the combustion zone 13 are provided on the test shaft 1; a measurement and control module 2 is located inside the test shaft 1; the measurement and control module 2 includes a first monitoring component and a second monitoring component; the first monitoring component is located inside the combustion zone 13 and is used to monitor and record the temperature and radiant heat flux of the combustion zone 13; the second monitoring component is located inside the spread zone 14 and is used to monitor and record the temperature of the spread zone 14 and observe the spread zone 14.

[0029] Compared with the prior art, the cable shaft fire protection testing device provided in this embodiment, when in use, ignites the cable 9 located in the combustion zone 13 and activates the monitoring and control module 2. The first monitoring component monitors and records the temperature and radiant heat flux of the combustion zone 13, while the second monitoring component monitors the temperature and observes the condition of the spread zone 14. This allows for the evaluation of the performance of the fireproof sealing material 3 filling the cable hole 15 and the flame-retardant material 4 attached to the cable 9. Multiple partition floors 11 divide the interior of the test shaft 1 into an air supply zone 12, a combustion zone 13, and a spread zone 14 to simulate a real fire combustion scenario. Cable holes 15 are provided to facilitate the installation of the cable 9 within the test shaft 1. Air supply vents 17 and air supply channels 16 are provided to simulate the fire hazards in actual building cable shafts. The chimney effect leads to the replenishment of fresh air at the bottom; a spread zone 14 is set up to simulate the fire spread situation above the combustion zone 13 in an actual building; a smoke exhaust vent 18 is set up to exhaust the smoke during the combustion process, ensuring that the air supply channel 16 can continuously deliver air to the combustion zone 13, thereby ensuring that the cable 9 and other combustibles can be fully burned; in this way, by using the air supply zone 12, the combustion zone 13 and the spread zone 14, a real fire scenario is simulated, and the combustion zone 13 and the spread zone 14 are monitored by the first monitoring component and the second monitoring component respectively, thereby evaluating the performance of the fireproof sealing material 3 and the additional flame retardant material 4; at the same time, the spread zone 14 can effectively monitor the spread of smoke, temperature and flame, reflecting the fire safety concept of preventing the spread and expansion of fire under harsh combustion scenarios.

[0030] Please see Figure 1 and Figure 2As a specific embodiment of the fire protection testing device for cable shafts provided by this utility model, the first monitoring component includes a first temperature sensor 21 and a radiant heat flux meter 22; the first temperature sensor 21 is installed on the inner wall of the test shaft 1 to monitor the air temperature; the radiant heat flux meter 22 is installed on the corresponding partition floor slab 11, and the probe of the radiant heat flux meter 22 is set towards the cable 9; by using the first temperature sensor 21 and the radiant heat flux meter 22 to monitor the temperature and radiant heat flux of the combustion zone 13, the performance of the additional flame retardant material 4 and the fireproof sealing material 3 can be evaluated more comprehensively.

[0031] Please see Figure 1 and Figure 3 As a specific embodiment of the fire protection testing device for cable shafts provided by this utility model, the second monitoring component includes multiple second temperature sensors 23 and a camera 24; the multiple second temperature sensors 23 are respectively disposed on the surface of the additional flame-retardant material 4 and the fireproof sealing material 3 on the cable 9; the camera 24 is disposed on the corresponding partition floor slab 11, and the camera of the camera 24 is set towards the fireproof sealing material 3 and the cable 9; with the help of the second temperature sensors 23, the temperature of the additional flame-retardant material 4 and the fireproof sealing material 3 can be monitored in real time, and the spread zone 14 can be observed by the camera 24, so as to more comprehensively evaluate the performance of both.

[0032] Please see Figure 4 As a specific embodiment of the fire protection testing device for cable shafts provided by this utility model, an air flow meter 25 is also provided at the air supply port 17. The air flow meter 25 is electrically connected to the measurement and control module 2 and is used to monitor and record the air supply volume. The air flow meter 25 is used to measure the real-time flow rate of the air supplied from the air supply zone 12 to the combustion zone 13, and then calculate the real-time air flow rate to ensure the accuracy of the test.

[0033] Please see Figure 1 and Figure 2 As a specific embodiment of the cable shaft fire prevention testing device provided by this utility model, the cable shaft fire prevention testing device also includes a combustion device 5; the combustion device 5 is located in the combustion zone 13 and is used to ignite the cable 9; the combustion device 5 is a controllable power burner, and the burner is electrically connected to the measurement and control module 2; by electrically connecting the burner to the measurement and control module 2, the size of the burner's flame can be controlled by the measurement and control module 2; the combustion device 5 can be a standard combustible material, and by setting two fire sources, the burner and the standard combustible material can be selected, which is suitable not only for passive fire prevention but also for active fire extinguishing scenarios; the standard combustible material can be a stack of wood or an oil pan.

[0034] Please see Figure 1 and Figure 2As a specific embodiment of the fire protection testing device for cable shafts provided by this utility model, a support frame 6 is provided on the partition floor slab 11, and the support frame 6 is located in the combustion zone 13; the combustion device 5 is provided on the support frame 6 and is located above the fireproof sealing material 3; the combustion device 5 is supported by the support frame 6 so that the weight of the combustion device 5 does not act on the fireproof sealing material 3, thereby minimizing the impact of the combustion device 5 on the performance evaluation of the fireproof sealing material 3.

[0035] Please see Figure 4 As a specific embodiment of the fire protection testing device for cable shafts provided by this utility model, the test shaft 1 is equipped with multiple installation doors 19 for opening or closing the air supply zone 12, the combustion zone 13, and the spread zone 14. To facilitate test preparation, multiple installation doors 19 for opening or closing the three zones are installed on the wall on one side of the test shaft 1. All installation doors 19 are guaranteed not to deform under high-temperature conditions and can maintain a certain degree of airtightness throughout the test. Stairs or ladders can be installed on the outside of the three installation doors 19 for easy access for personnel.

[0036] Please see Figure 2 As a specific embodiment of the fire protection testing device for cable shafts provided by this utility model, the inner wall of the test shaft 1 is also provided with a fire extinguishing device 7, which is located in the combustion zone 13 and is used for fire extinguishing. According to the specific design, the fire extinguishing device 7 can be installed as part of the test so that it can be extinguished in time in case of an emergency. The fire extinguishing device 7 includes a water pump and a nozzle, the nozzle is installed in the combustion zone 13 and connected to the water pump.

[0037] Please see Figure 3 As a specific embodiment of the fireproof testing device for cable shafts provided by this utility model, the inner wall of the test shaft 1 is also provided with a crane 8, which is located in the spread zone 14 and is used to lift the cable 9; the crane 8 is used to lift the cable 9 or other heavy objects when installing the test shaft 1.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable shaft fire protection test device, characterized by, The utility model relates to a kind of cable shaft fireproof test device, including: Test shaft, inside multiple partition floors are provided; The partition floor separates the inside of the test shaft into make-up air zone, combustion zone and spread zone arranged in turn from bottom to top;The partition floor is provided with cable hole for cable passing, and the cable hole is filled with fireproof blocking material, and the cable is coated with additional fire-retardant material;Make-up air passage is provided in the partition floor between the make-up air zone and the combustion zone;Make-up air opening and smoke exhaust opening are provided in the test shaft and connected with the make-up air zone and the combustion zone respectively; Measurement and control module is arranged in the test shaft;The measurement and control module includes first monitoring component and second monitoring component;The first monitoring component is arranged in the combustion zone, for monitoring and recording the temperature and radiant heat flux of the combustion zone;The second monitoring component is arranged in the spread zone, for monitoring and recording the temperature of the spread zone and observing the spread zone.

2. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, The first monitoring component includes first temperature sensor and radiant heat flux instrument;The first temperature sensor is arranged on the inner wall of the test shaft, for monitoring air temperature;The radiant heat flux instrument is arranged on the corresponding partition floor, and the probe of the radiant heat flux instrument is arranged towards the cable.

3. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, The second monitoring component includes multiple second temperature sensors and cameras;Multiple second temperature sensors are arranged on the surface of additional fire-retardant material and fireproof blocking material respectively;The camera is arranged on the corresponding partition floor, and the camera head of the camera is arranged towards the fireproof blocking material and the cable.

4. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, Air flow meter is further arranged at the make-up air opening, and the air flow meter is electrically connected with the measurement and control module, for monitoring and recording make-up air volume.

5. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, The cable shaft fireproof test device further includes combustion device;The combustion device is arranged in the combustion zone, for igniting the cable.

6. A cable shaft fire protection test apparatus as claimed in claim 5, wherein, Support frame is arranged on the partition floor, and the support frame is located in the combustion zone;The combustion device is arranged on the support frame and above the fireproof blocking material.

7. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, Multiple installation doors are arranged on the test shaft, for opening or closing the make-up air zone, the combustion zone and the spread zone respectively.

8. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, Fire extinguishing device is further arranged on the inner wall of the test shaft, and the fire extinguishing device is located in the combustion zone, for extinguishing fire.

9. A cable shaft fire protection test apparatus as claimed in claim 1, wherein, Crane is further arranged on the inner wall of the test shaft, and the crane is located in the spread zone, for lifting the cable.

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