Intelligent detection equipment for fire resistance detection of fireproof door
The design of intelligent testing equipment has solved the problems of personnel safety and environmental pollution in the fire resistance testing of fire doors, and has achieved an efficient and safe testing process as well as environmentally friendly cooling treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN CHANGSHA FIREPROOF EQUIP FACTORY
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-22
AI Technical Summary
The existing fire door fire resistance testing equipment does not have protective measures during combustion tests, which exposes test personnel to the threat of high temperature, flames and flying debris, and the smoke generated by combustion pollutes the test site environment.
An intelligent detection device was designed, comprising a support frame, a combustion chamber, a servo motor, a fan, a smoke treatment box, a temperature sensor, and an electromagnet. The servo motor drives the fire door to rotate, the fan provides oxygen, the smoke treatment box purifies the smoke, the electromagnet magnetically connects to the protective door, and the temperature sensor monitors the temperature and controls the electromagnet to cut off the power, thereby achieving stable fixation of the fire door, comprehensive combustion, smoke purification, and personnel protection.
It effectively prevents injury to test personnel, reduces smoke pollution, ensures the accuracy and safety of test results, improves testing efficiency, and achieves environmentally friendly cooling and wastewater treatment.
Smart Images
Figure CN224266860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door testing technology, specifically to an intelligent testing device for testing the fire resistance of fire doors. Background Technology
[0002] With the acceleration of urbanization and the emergence of numerous high-rise buildings, building fire safety has become a focus of public concern. Fire doors, as crucial fire-resistant partitions in buildings, effectively prevent the spread of flames and smoke during a fire, buying precious time for evacuation and fire rescue. Their fire resistance performance directly impacts building fire safety and the safety of life and property. Therefore, rigorous and accurate fire resistance testing of fire doors is a key step in ensuring their quality and reliable performance.
[0003] For example, Chinese utility model patent application number 202223567094.X discloses a fire door fire resistance testing device. Through the cooperation of the testing device body, the flame-spraying chamber, the flame-spraying pipe, the cooling mechanism, and the rotating mechanism, the fire door can be tested for fire resistance using the testing device body, the flame-spraying chamber, and the flame-spraying pipe. The cooling mechanism can quickly cool the fire door after the fire resistance test, making it easier for workers to remove the fire door. The rotating mechanism can rotate the fire door during fire resistance testing and cooling, thereby effectively improving the uniformity of heating and the cooling speed of the fire door. However, this device still has certain shortcomings.
[0004] The lack of any protective measures during the fire door combustion test exposed the test personnel directly to the threats of high temperature, flames, and flying debris, which could easily lead to injury. At the same time, the smoke generated during the combustion caused serious pollution to the test site environment.
[0005] Therefore, we propose an intelligent testing device for fire resistance testing of fire doors to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide an intelligent testing device for fire resistance testing of fire doors, in order to solve the problems mentioned in the background art, that currently on the market, no protective measures are set up when conducting combustion tests on fire doors, which exposes test personnel directly to the threat of high temperature, flames and flying debris, which can easily lead to personnel injury, and at the same time, the smoke generated during combustion causes serious pollution to the test site environment.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an intelligent testing device for fire resistance testing of fire doors, comprising a support frame and a combustion chamber, wherein a horizontal plate and a servo motor are installed above the support frame, and the combustion chamber is installed above the horizontal plate, and a U-shaped frame is installed above the servo motor via an output shaft;
[0008] A fan and a smoke treatment box are installed above the combustion chamber, and exhaust pipes and discharge pipes are installed on the left and right sides of the smoke treatment box, respectively.
[0009] A water collection tank is installed on the right side of the combustion chamber, and a high-pressure nozzle is installed on the left side of the water collection tank. A water storage tank is installed above the right side of the horizontal plate, and a circulating water pump is installed on the right side of the water storage tank. A wastewater pipe is installed below the combustion chamber.
[0010] A temperature sensor is installed inside the combustion chamber, and a protective door is installed on the front surface of the combustion chamber. An electromagnet is installed on the right side of the front surface of the combustion chamber.
[0011] Preferably, a burner is installed on the upper left side of the horizontal plate, and a combustion nozzle is installed on the right side of the burner, with the combustion nozzle located inside the combustion chamber.
[0012] The above structural design provides a fire source for testing. The burner sprays flames into the combustion chamber through a combustion nozzle, enabling fire resistance testing of the fire door to be tested, simulating a real fire scenario, and ensuring the accuracy and effectiveness of the test.
[0013] Preferably, the U-shaped frame is located inside the combustion chamber, and fixing bolts are installed on both the left and right sides of the U-shaped frame. Fixing plates are installed on the opposite side of the fixing bolts. The U-shaped frame, fixing bolts, and fixing plates are all designed with high temperature resistance.
[0014] The above structural design can firmly fix the fire door, which not only ensures the stability of the fire door during the test and ensures the reliability of the test results, but also enables the U-shaped frame to rotate through the servo motor, thereby achieving combustion or cooling of a larger area of the fire door and improving the efficiency and comprehensiveness of the test.
[0015] Preferably, an air inlet pipe is installed on the left side of the fan, and the air inlet pipe is connected to the interior of the combustion chamber.
[0016] The above structural design allows for more complete combustion. The air blown in by the fan provides sufficient oxygen for combustion, while the one-way valve prevents the backflow of high-temperature gas, protects the fan, ensures normal equipment operation, and guarantees a smooth testing process.
[0017] Preferably, both the exhaust pipe and the air inlet pipe are equipped with one-way valves, and the inside of the smoke treatment box is equipped with a filter screen and an activated carbon screen from left to right. Both the filter screen and the activated carbon screen are detachably connected to the smoke treatment box.
[0018] The above structural design can effectively purify smoke. The filter screen filters out large particulate impurities, and the activated carbon screen adsorbs harmful gases and fine particles. The purified gas is discharged, reducing pollution to the test site environment and protecting the health of test personnel.
[0019] Preferably, multiple high-pressure nozzles are provided, and both the high-pressure nozzles and the water collection tank are designed with high-temperature resistance. The upper and lower sides of the circulating water pump are respectively equipped with an outlet pipe and an inlet pipe. The outlet pipe is connected to the water collection tank, and the inlet pipe is connected to the water storage tank. A control valve is provided on the wastewater pipe, and the wastewater pipe is connected to the wastewater tank.
[0020] The above structural design enables the cooling of the fire door after testing and the treatment of wastewater. Rapid cooling facilitates subsequent operations, and centralized wastewater treatment avoids environmental pollution, thus improving the practicality and environmental friendliness of the equipment.
[0021] Preferably, when the electromagnet is energized, it is magnetically connected to the protective door, the temperature sensor is connected to the PLC controller, and the PLC controller is connected to the electromagnet.
[0022] The above structural design ensures personnel safety. The temperature sensor monitors the temperature, and when the safe temperature is reached, the PLC controller controls the electromagnet to cut off the power, which can open the protective door to prevent high temperature injuries to workers.
[0023] Compared with the prior art, the beneficial effects of this utility model are: the intelligent testing equipment for fire resistance testing of fire doors:
[0024] 1. Ensuring personnel safety: The design of the protective door and electromagnet ensures that when the electromagnet is energized during testing, it magnetically connects with the protective door, effectively blocking high temperatures, flames, and splashes, preventing test personnel from being directly exposed to the dangerous environment, reducing the risk of injury, and ensuring the personal safety of test personnel.
[0025] 2. Reduce environmental pollution: The filter and activated carbon mesh in the fume treatment chamber purify the smoke generated by combustion, filtering and adsorbing harmful gases and particles, reducing the pollution of the test site environment by the smoke, meeting environmental protection requirements, and creating a good working environment for test personnel.
[0026] 3. Flexible cooling and wastewater treatment: The cooling system, consisting of multiple high-pressure nozzles, a water collection tank, a water storage tank, and a circulating water pump, can quickly cool down the fire doors after testing, facilitating subsequent operations. The design of the wastewater pipes and control valves allows for centralized treatment of wastewater, avoiding indiscriminate discharge that could pollute the environment. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the main cross-section of the present invention;
[0028] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0029] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0030] Figure 4 This is a schematic diagram of the position and structure of the electromagnet of this utility model;
[0031] Figure 5 This is a schematic diagram of the internal structure of the smoke treatment box of this utility model;
[0032] Figure 6 This is a schematic diagram of the U-shaped frame structure of this utility model.
[0033] In the diagram: 1. Support frame; 2. Horizontal plate; 3. Combustion chamber; 4. Burner; 5. Combustion nozzle; 6. Servo motor; 7. U-shaped frame; 8. Fixing bolt; 9. Fixing plate; 10. Fan; 11. Air inlet pipe; 12. Smoke treatment box; 13. Smoke exhaust pipe; 14. Discharge pipe; 15. One-way valve; 16. Filter screen; 17. Activated carbon screen; 18. Water collection tank; 19. High-pressure nozzle; 20. Water storage tank; 21. Circulating water pump; 22. Water outlet pipe; 23. Water inlet pipe; 24. Wastewater pipe; 25. Temperature sensor; 26. Protective door; 27. Electromagnet. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Please see Figures 1-6This utility model provides a technical solution: an intelligent testing device for fire resistance testing of fire doors, including a support frame 1, a horizontal plate 2, a combustion chamber 3, a burner 4, a combustion nozzle 5, a servo motor 6, a U-shaped frame 7, fixing bolts 8, a fixing plate 9, a fan 10, an air inlet pipe 11, a smoke treatment box 12, a smoke exhaust pipe 13, an exhaust pipe 14, a one-way valve 15, a filter screen 16, an activated carbon screen 17, a water collection tank 18, a high-pressure nozzle 19, a water storage tank 20, a circulating water pump 21, a water outlet pipe 22, a water inlet pipe 23, a wastewater pipe 24, a temperature sensor 25, a protective door 26, and an electromagnet 27. The horizontal plate 2 and the servo motor 6 are installed above the support frame 1, and the combustion chamber 3 is installed above the horizontal plate 2. The burner 4 is installed on the upper left side of the horizontal plate 2, and the combustion nozzle 5 is installed on the right side of the burner 4. The combustion nozzle 5 is located inside the combustion chamber 3. The fire door to be tested is tested by starting the burner 4, which sprays flames into the combustion chamber 3 through the combustion nozzle 5. A U-shaped frame 7 is installed above the servo motor 6 via the output shaft. The U-shaped frame 7 is located inside the combustion chamber 3, and fixing bolts 8 are installed on both sides of the U-shaped frame 7. Fixing plates 9 are installed on the opposite side of the fixing bolts 8. The U-shaped frame 7, fixing bolts 8 and fixing plates 9 are all designed with high temperature resistance. The fire door to be tested is placed in the U-shaped frame 7. By tightening the fixing bolts 8 on both sides of the U-shaped frame 7, the fixing plates 9 are tightly pressed against the fire door, thus fixing the fire door firmly. When the fire door is burning or cooling, the servo motor 6 can be started. The servo motor 6 drives the U-shaped frame 7 to rotate via the output shaft, thereby rotating the fire door on the U-shaped frame 7, which facilitates the combustion or cooling of a larger area of the fire door.
[0036] A fan 10 and a smoke treatment box 12 are installed above the combustion chamber 3. An air inlet pipe 11 is installed on the left side of the fan 10, and the air inlet pipe 11 is connected to the interior of the combustion chamber 3. When the fan 10 is started, the fan 10 blows air into the combustion chamber 3 through the air inlet pipe 11 to make combustion more complete. The one-way valve 15 on the air inlet pipe 11 can prevent the high-temperature gas in the combustion chamber 3 from flowing back to the fan 10, ensuring the safe operation of the fan 10. The smoke treatment box 12 has an exhaust pipe 13 and an exhaust pipe 14 installed on its left and right sides, respectively. Both the exhaust pipe 13 and the air inlet pipe 11 are equipped with one-way valves. The filter screen 16 and activated carbon screen 17 are installed inside the smoke treatment box 12 from left to right. Both the filter screen 16 and activated carbon screen 17 are detachably connected to the smoke treatment box 12. During the combustion process, the smoke generated by the combustion will enter the smoke treatment box 12 through the exhaust pipe 13. The filter screen 16 in the smoke treatment box 12 first filters out large particulate impurities in the smoke, and then the activated carbon screen 17 further adsorbs harmful gases and fine particles in the smoke. The purified gas is discharged through the exhaust pipe 14, which effectively reduces the pollution to the test site environment.
[0037] A water collection tank 18 is installed on the right side of the combustion chamber 3, and a high-pressure nozzle 19 is installed on the left side of the water collection tank 18. A water storage tank 20 is installed above the right side of the horizontal plate 2, and a circulating water pump 21 is installed on the right side of the water storage tank 20. A wastewater pipe 24 is installed below the combustion chamber 3. Multiple high-pressure nozzles 19 are provided, and both the high-pressure nozzles 19 and the water collection tank 18 are designed with high-temperature resistance. A water outlet pipe 22 and a water inlet pipe 23 are installed on the upper and lower sides of the circulating water pump 21, respectively. The water outlet pipe 22 is connected to the water collection tank 18, and the water inlet pipe 23 is connected to the water storage tank 20. A control valve is installed on the wastewater pipe 24, and the wastewater pipe 24 is connected to the wastewater tank. If it is necessary to cool down the fire door after testing, the circulating water pump 21 is started. The circulating water pump 21 draws water from the water storage tank 20 through the inlet pipe 23 and then delivers it to the water collection tank 18 through the outlet pipe 22. Multiple high-pressure nozzles 19 on the left side of the water collection tank 18 spray water onto the fire door to cool it down. The wastewater generated by cooling is discharged through the wastewater pipe 24. The control valve on the wastewater pipe 24 can control the wastewater discharge, and the wastewater pipe 24 is connected to the wastewater tank for centralized wastewater treatment.
[0038] A temperature sensor 25 is installed inside the combustion chamber 3, and a protective door 26 is installed on the front surface of the combustion chamber 3. An electromagnet 27 is installed on the right side of the front surface of the combustion chamber 3. When the electromagnet 27 is energized, it is magnetically connected to the protective door 26. The temperature sensor 25 is connected to the PLC controller, and the PLC controller is connected to the electromagnet 27. The temperature sensor 25 monitors the temperature inside the combustion chamber 3 in real time and transmits the temperature data to the connected PLC controller. When the temperature reaches the set safe temperature, the PLC controller issues a command to de-energize the electromagnet 27. At this time, the protective door 26 can be opened, thereby effectively preventing the high temperature inside the combustion chamber 3 from causing harm to the staff.
[0039] Working principle: When using this intelligent testing equipment for fire resistance testing of fire doors, first, place the fire door to be tested inside the U-shaped frame 7. Tighten the fixing bolts 8 on the left and right sides of the U-shaped frame 7 to make the fixing plate 9 press firmly against the fire door, thereby fixing the fire door securely. When the fire door is burning or cooling, the servo motor 6 can be started. The servo motor 6 drives the U-shaped frame 7 to rotate through the output shaft, thereby driving the fire door on the U-shaped frame 7 to rotate, which facilitates the burning or cooling of a larger area of the fire door.
[0040] The burner 4 is started, and the burner 4 sprays flames into the combustion chamber 3 through the combustion nozzle 5 to conduct a fire resistance test on the fire door to be tested. The fan 10 is started, and the fan 10 blows air into the combustion chamber 3 through the air inlet pipe 11 to make the combustion more complete. The one-way valve 15 on the air inlet pipe 11 can prevent the high-temperature gas in the combustion chamber 3 from flowing back to the fan 10, ensuring the safe operation of the fan 10. During the combustion process, the smoke generated by the combustion will enter the smoke treatment box 12 through the smoke exhaust pipe 13. The filter screen 16 in the smoke treatment box 12 first filters the large particulate impurities in the smoke, and then the activated carbon screen 17 further adsorbs the harmful gases and fine particles in the smoke. The purified gas is discharged through the exhaust pipe 14, effectively reducing the pollution to the test site environment.
[0041] After the testing time is reached, the burner 4 and the fan 10 are turned off. The shape change of the fire door can be observed through the viewing window on the protective door 26. After testing, the fire door is cooled down. The circulating water pump 21 is started. The circulating water pump 21 draws water from the water storage tank 20 through the inlet pipe 23 and then delivers it to the water collection tank 18 through the outlet pipe 22. Multiple high-pressure nozzles 19 on the left side of the water collection tank 18 spray water onto the fire door to cool it down. The wastewater generated by cooling is discharged through the wastewater pipe 24. The control valve on the wastewater pipe 24 can control the wastewater discharge. The wastewater pipe 24 is connected to the wastewater tank for centralized wastewater treatment.
[0042] Temperature sensor 25 monitors the temperature inside combustion chamber 3 in real time and transmits the temperature data to the connected PLC controller. When the temperature reaches the set safe temperature, the PLC controller issues a command to de-energize electromagnet 27, at which point the protective door 26 can be opened, effectively preventing the high temperature inside combustion chamber 3 from harming personnel, thus completing a series of operations. Content not described in detail in this specification belongs to prior art known to those skilled in the art.
[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An intelligent testing device for fire resistance testing of fire doors, comprising a support frame (1) and a combustion chamber (3), wherein a horizontal plate (2) and a servo motor (6) are installed above the support frame (1), and the combustion chamber (3) is installed above the horizontal plate (2), characterized in that: A U-shaped frame (7) is mounted above the servo motor (6) via an output shaft; A fan (10) and a smoke treatment box (12) are installed above the combustion chamber (3), and a smoke exhaust pipe (13) and a discharge pipe (14) are installed on the left and right sides of the smoke treatment box (12), respectively. A water collection tank (18) is installed on the right side of the combustion chamber (3), and a high-pressure nozzle (19) is installed on the left side of the water collection tank (18). A water storage tank (20) is installed above the right side of the horizontal plate (2), and a circulating water pump (21) is installed on the right side of the water storage tank (20). A wastewater pipe (24) is installed below the combustion chamber (3). A temperature sensor (25) is installed inside the combustion chamber (3), and a protective door (26) is installed on the front surface of the combustion chamber (3). An electromagnet (27) is installed on the right side of the front surface of the combustion chamber (3).
2. The intelligent testing equipment for fire resistance testing of fire doors according to claim 1, characterized in that: A burner (4) is installed on the upper left side of the horizontal plate (2), and a combustion nozzle (5) is installed on the right side of the burner (4). The combustion nozzle (5) is located inside the combustion chamber (3).
3. The intelligent testing equipment for fire resistance testing of fire doors according to claim 1, characterized in that: The U-shaped frame (7) is located inside the combustion chamber (3), and fixing bolts (8) are installed on both the left and right sides of the U-shaped frame (7). Fixing plates (9) are installed on the opposite side of the fixing bolts (8). The U-shaped frame (7), fixing bolts (8) and fixing plates (9) are all designed with high temperature resistance.
4. The intelligent testing equipment for fire resistance testing of fire doors according to claim 1, characterized in that: An air inlet pipe (11) is installed on the left side of the blower (10), and the air inlet pipe (11) is connected to the interior of the combustion chamber (3).
5. The intelligent testing equipment for fire resistance testing of fire doors according to claim 4, characterized in that: One-way valves (15) are installed on both the exhaust pipe (13) and the air inlet pipe (11). A filter screen (16) and an activated carbon screen (17) are installed inside the smoke treatment box (12) from left to right. Both the filter screen (16) and the activated carbon screen (17) are detachably connected to the smoke treatment box (12).
6. The intelligent testing equipment for fire resistance testing of fire doors according to claim 1, characterized in that: Multiple high-pressure nozzles (19) are provided, and both the high-pressure nozzles (19) and the water collection tank (18) are designed with high-temperature resistance. The upper and lower sides of the circulating water pump (21) are respectively equipped with an outlet pipe (22) and an inlet pipe (23). The outlet pipe (22) is connected to the water collection tank (18), and the inlet pipe (23) is connected to the water storage tank (20). A control valve is provided on the wastewater pipe (24), and the wastewater pipe (24) is connected to the wastewater tank.
7. The intelligent testing equipment for fire resistance testing of fire doors according to claim 1, characterized in that: When the electromagnet (27) is energized, it is magnetically connected to the protective door (26), the temperature sensor (25) is connected to the PLC controller, and the PLC controller is connected to the electromagnet (27).