Fireproof door detection test device
By designing a fire door detection and testing device including a test chamber, a smoke generator, a sensor and a controller, the problem of safety hazards in manual operation in the prior art is solved, and the automatic detection of the fire door at different temperatures is realized, and the accuracy and safety of the detection are improved.
Patent Information
- Application Number
- CN202422239951.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing smoke-proof performance test requires manual operation, which poses safety risks, and is difficult to effectively detect the pressure changes and smoke-proof performance of fire doors at different temperatures.
A fire door detection and testing device is designed, including a test chamber, smoke generator, pressure sensor, temperature sensor, photoinductor smoke detector and controller. The automatic detection system replaces manual operation to realize the smoke resistance performance of the fire door at different temperatures.
The device can automatically detect the smoke-proof performance of the fire door, avoid safety hazards of manual operation, improve the accuracy and safety of detection, and expand the scope of inspection application.
Smart Images
Figure CN223005675U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fire-fighting facility detection, and particularly relates to a fire door detection test device. Background Technique
[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc. As an important part of building safety, the quality and performance of fire doors are directly related to people's life and property safety. Before leaving the factory, in addition to the material meeting the relevant standard requirements, the performance of the fire door also needs to be tested, mainly including fire resistance performance, smoke prevention performance, and heat insulation performance tests. Among them, the smoke prevention performance test is an important indicator to evaluate the sealing performance of the fire door, and the result of the smoke prevention performance test will directly affect the smoke prevention effect of the fire door in case of fire. In the test, by simulating the smoke environment generated at the fire scene, the sealing performance of the fire door in the closed state is observed, and information such as the penetration of smoke and pressure changes under normal temperature and high temperature conditions is recorded, and finally a test result report is issued. The existing smoke prevention performance test relies on the tester approaching the fire door and operating the smoke detection equipment for detection, which is very harmful to the safety of the operator himself. Therefore, it is necessary to design a fire door detection test device that can replace manual detection. Content of the Utility Model
[0003] Aiming at the above technical problems, the utility model provides a fire door detection test device that can replace manual detection.
[0004] To solve the above technical problems, the technical solution of the utility model is: a fire door detection test device, including a test chamber and a smoke generator. One side of the test chamber is open, and a fire door installation frame is fixedly connected inside. A fire door to be tested is installed in the fire door installation frame. The smoke generator is communicated with the test chamber. Exhaust ports and intake ports are respectively opened at the upper and lower ends on the other side of the test chamber. Smoke circulation mechanisms are fixedly connected to the exhaust ports and intake ports. An electric heater is installed on one side of the test chamber near the intake port below. Pressure sensors and temperature sensors are fixedly connected to the inner wall of the test chamber. A photoelectric smoke detector is fixedly connected to the upper end inside the test chamber outside the fire door installation frame. The pressure sensors, temperature sensors, and photoelectric smoke detectors are all communicatively connected to a controller, and the controller is communicatively connected to a display.
[0005] Further, the flue gas circulation mechanism includes a circulation fan, an intake pipe, and an exhaust pipe. A mounting plate is fixedly connected to the lower part outside the test chamber. The circulation fan is fixedly connected to the mounting plate. The two ends of the intake pipe are respectively communicated with the air inlet and the output end of the circulation fan, and the two ends of the exhaust pipe are respectively communicated with the exhaust port and the input end of the circulation fan.
[0006] Further, the electric heater is controlled by a controller.
[0007] Further, a box door is hinged to the side of the opening of the test chamber.
[0008] Further, support feet are fixedly connected to the lower end of the test chamber.
[0009] The utility model has the following advantages compared with the prior art:
[0010] 1. By setting a pressure sensor, a temperature sensor, a photoelectric smoke detector and a controller, the utility model can replace manual detection of the pressure change and smoke prevention performance of the fire door at different temperatures, avoiding adverse effects on the safety of the detection personnel caused by manual detection. By setting a flue gas circulation mechanism and an electric heater, it is convenient to detect the smoke prevention performance of the fire door under normal temperature and high temperature conditions, increasing the application range of the device.
[0011] 2. By setting a box door on one side of the opening of the test chamber, the utility model can avoid the adverse effect of dust on the detection of the photoelectric smoke detector, ensuring the accuracy of the detection of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic structural diagram of the utility model.
[0013] In the figure: 1, test chamber; 2, smoke generator; 3, fire door installation frame; 4, fire door to be inspected; 5, exhaust port; 6, air inlet; 7, electric heater; 8, pressure sensor; 9, temperature sensor; 10, photoelectric smoke detector; 11, controller; 12, circulation fan; 13, intake pipe; 14, exhaust pipe; 15, mounting plate; 16, box door; 17, support feet. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The following will further illustrate the utility model with reference to the drawings.
[0015] As Figure 1A fire door detection test device shown in the figure includes a test chamber 1 and a smoke generator 2. One side of the test chamber 1 is open, and a fire door installation frame 3 is fixedly connected inside. A fire door to be tested 4 is installed in the fire door installation frame 3. The smoke generator 2 is communicated with the test chamber 1. An air pump on the smoke outlet of the smoke generator 2 will regularly and quantitatively send the smoke in the smoke generator 2 into the test chamber 1. Exhaust ports 5 and air inlets 6 are respectively opened at the upper and lower ends on the other side of the test chamber 1. Smoke circulation mechanisms are fixedly connected to both the exhaust port 5 and the air inlet 6. An electric heater 7 is installed on one side of the lower part inside the test chamber 1 near the air inlet 6. Pressure sensors 8 and temperature sensors 9 are fixedly connected to the inner wall of the test chamber 1. A photoelectric smoke detector 10 is fixedly connected to the upper end inside the test chamber 1 outside the fire door installation frame 3. The pressure sensors 8, the temperature sensors 9, and the photoelectric smoke detector 10 are all communicatively connected to a controller 11, and the controller 11 is communicatively connected to a display.
[0016] It should be noted that in this embodiment, the smoke generator 2 and the photoelectric smoke detector 10 are both existing devices well-known in the industry, so their structures will not be described in detail.
[0017] In order to make the smoke gas in the test chamber 1 circulate when heating and rising in temperature, the smoke circulation mechanism includes a circulation fan 12, an intake pipe 13, and an exhaust pipe 14. A mounting plate 15 is fixedly connected to the lower part outside the test chamber 1. The circulation fan 12 is fixedly connected to the mounting plate 15. The two ends of the intake pipe 13 are respectively communicated with the air inlet 6 and the output end of the circulation fan 12. The two ends of the exhaust pipe 14 are respectively communicated with the exhaust port 5 and the input end of the circulation fan 12. Through the continuous operation of the circulation fan 12, the smoke gas in the test chamber 1 is continuously transported from the upper exhaust port 5 to the lower air inlet 6, and the smoke gas blows through the electric heater 7, improving the heating efficiency of the smoke gas of the device.
[0018] In order to reduce the power consumption of the electric heater 7 for heating the smoke and accurately control the temperature of the smoke in the test chamber 1, the electric heater 7 is controlled by the controller 11. When the controller 11 receives the signal from the temperature sensor 9, when the temperature value is higher than the set value of the controller 11, the controller 11 controls the electric heater 7 to turn off. When the temperature value is lower than the set value of the controller 11, the controller 11 restarts the electric heater 7.
[0019] In order to prevent the photoelectric smoke detector 10 from being interfered by external dust and causing errors in the detection results, a box door 16 is hinged to the side of the open side of the test chamber 1.
[0020] In order to support the device and improve the overall stability of the device, support feet 17 are fixedly connected to the lower end of the test chamber 1.
[0021] The specific working process of the present utility model is as follows:
[0022] Install the fire door 4 to be inspected in the fire door installation frame 3, apply high-temperature sealant around it, and wait for the high-temperature sealant to dry. Then close the chamber door 16 and conduct the inspection. Start the smoke generator 2, inject a certain amount of smoke into the test chamber 1, and turn on the circulation fan 12. The smoke enters the test chamber 1 again through the exhaust port 5, the exhaust pipe 14, the circulation fan 12, the intake pipe 13, and the intake port 6 in sequence and circulates continuously. The pressure sensor 8 and the temperature sensor 9 respectively transmit the detected corresponding parameter signals to the controller 11. The photoelectric smoke detector 10 detects whether there is smoke leaking through the fire door 4 to be inspected and also transmits the corresponding signal to the controller 11. The controller 11 processes the received signals of pressure, temperature, and whether there is smoke and displays the results on the display in real time. After reaching the inspection time, the inspector regularly records each parameter to complete the smoke prevention performance inspection of the fire door 4 to be inspected at normal temperature. Start the electric heater 7, continuously raise the temperature of the smoke in the test chamber 1 to 200 °C and maintain this temperature for a period of time. Complete the smoke prevention performance inspection of the fire door 4 to be inspected at high temperature according to the steps of the smoke prevention performance inspection of the fire door 4 to be inspected at normal temperature above. Turn off the electric heater 7 and the circulation fan 12. After the device cools down, remove the fire door to complete the smoke prevention performance inspection.
Claims
1. A fire door detection test device, comprising a test box (1) and a smoke generator (2), wherein the test box (1) has an opening on one side and is internally fixedly connected to a fire door mounting frame (3), wherein a fire door to be inspected (4) is installed in the fire door mounting frame (3), and the smoke generator (2) is connected to the test box (1), characterized in that: An exhaust port (5) and an air inlet (6) are respectively provided at the upper and lower ends of the other side of the test box (1); the exhaust port (5) and the air inlet (6) are both fixedly connected to a smoke circulation mechanism; an electric heater (7) is installed on the lower side of the test box (1) near the air inlet (6); a pressure sensor (8) and a temperature sensor (9) are fixedly connected to the inner wall of the test box (1); a photoelectric smoke detector (10) is fixedly connected to the upper end of the test box (1) located outside the fire door installation frame (3); the pressure sensor (8), the temperature sensor (9) and the photoelectric smoke detector (10) are all communicatively connected to a controller (11); and the controller (11) is communicatively connected to a display.
2. The fire door detection test device according to claim 1, characterized in that: The flue gas circulation mechanism comprises a circulation fan (12), an air intake pipe (13), and an exhaust pipe (14); a mounting plate (15) is fixedly connected to the lower outer side of the test box (1); the circulation fan (12) is fixedly connected to the mounting plate (15); two ends of the air intake pipe (13) are respectively connected to the air intake port (6) and the output end of the circulation fan (12); and two ends of the exhaust pipe (14) are respectively connected to the exhaust port (5) and the input end of the circulation fan (12).
3. The fire door detection test device according to claim 1, characterized in that: The electric heater (7) is controlled by a controller (11).
4. The fire door detection test device according to claim 1, characterized in that: A box door (16) is hingedly connected to the side edge of the opening of the test box (1).
5. The fire door detection test device according to claim 1, characterized in that: A supporting foot (17) is fixedly connected to the lower end of the test box (1).